Direct gas pressure regulator with pressure load with balanced pressure shutter

FIELD: machine building.

SUBSTANCE: gas pressure regulator is fitted with a drive, a control valve and a device of pressure-induced loading. The pressure-induced loading device provides for loading the drive diaphragm surface with pressure which counteracts the output pressure on the opposite diaphragm side with the latter pressure being controlled by the regulator. In case the output pressure is changed the diaphragm moves and shifts the controlling element in order to regulate the output pressure while the pressure-induced loading device keeps up the specified pressure. The pressure regulator can comprise a regulating shutter which compensates the force of input pressure on the controlling element.

EFFECT: increasing efficiency of standard gas pressure regulators.

21 cl, 4 dwg

 

This application claims the priority of provisional patent application U.S. No. 61/046786 filed April 21, 2008, entitled "pressure Regulator direct action with the load pressure to the shutter balanced pressure", incorporated herein by reference.

The technical field to which the invention relates.

This application claims the priority of provisional patent application U.S. No. 61/046786 filed April 21, 2008, entitled "pressure Regulator direct action with the load pressure to the shutter balanced pressure", incorporated herein by reference.

The technical field to which the invention relates.

This invention relates to devices that regulate the flow of fluid, such as gas pressure regulators, and in particular, to pressure regulators with devices that provide pressure and is equipped with a shutter balanced pressure to adjust the output pressure is approximately equal to a predetermined preset pressure value.

The level of technology

Standard gas distribution system gas supply may vary according to the pressure requirements depending on system load, climatic conditions, sources of supply, and/or other factors. However, most of the objects of the ultimate consumer is the appropriate fields with gas appliances such as heaters, stoves, etc. that require the delivery of gas in accordance with the established pressure and without exceeding the maximum capacity of the gas pressure regulator. Thus, the distribution system is equipped with a gas pressure regulators to ensure the quality of gas in accordance with the requirements of the devices end-use. Traditional gas pressure regulators, usually equipped with a mechanism closed control valve for measuring and controlling pressure of gas supplied.

In addition to closed-loop control system, some of the traditional gas pressure regulators are equipped with a by-pass valve. The bypass valve is used to protect against excessive pressure, if fails, for example, a knob or other part of the distribution system pipeline products. Thus, if the inlet pressure increases above the set limit value, the bypass valve opens to release at least part of the gas into the atmosphere, thus reducing the pressure in the system.

Figure 1 and 2 shows one conventional gas pressure regulator 10. The controller 10 in General terms, consists of actuator 12 and valve 14. The control valve 14 controls the flow of gas at the inlet 16 of, for example, gas distribution system, and the gas flow at the outlet 18 to the end consumer is Italia, such as factories, restaurants, residential buildings, etc. having one or more gas appliance. In addition, the control valve 14 includes a throttle valve opening 20, located between the input and output. To move between the input 16 and output 18 of the gas must pass through the penetration hole 20 of the regulating valve 14.

The actuator 12 is connected with the regulating valve 14 to provide pressure at the outlet 18 of the regulating valve 14, i.e. the discharge pressure in accordance with the required output or control pressure. Therefore, the actuator 12 is in fluid communication with the regulating valve 14 through the valve bore 22 and the bore of the actuator 24. The actuator 12 is a control unit 26 for measuring and adjusting the exhaust pressure regulating valve 14. In particular, the control unit 26 includes a diaphragm 28, a piston 30 and the handle 32 with the valve plate 34. Typically, the valve plate 34 consists of a generally cylindrical body 36 and the sealing insert 38 mounted on the housing 36. The valve block 36 may also have an annular flange 40 which are integral to it, as shown in figure 2. The membrane 28 measures the discharge pressure regulating valve 14. The control unit 26 also has a regulating spring 42, and connected with the upper part of the diaphragm 28, which is designed for vyravnivanie the measured exhaust pressure.

Thus, the desired discharge pressure, which is also called the control pressure is set by selecting a control spring 42.

The membrane 28 is functionally connected with the control handle 32, and, thus, the valve plate 34 by means of the piston 30 controls the opening of the regulating valve 14 based on the measured exhaust pressure. For example, if an end user uses such a device, as, for example, heater, increasing, thus, the need for the natural gas distribution system at the output of the regulator 10, the output stream is increased, thus reducing the outlet pressure. Accordingly, the membrane 28 can detect this decrease in exhaust pressure. This allows regulating spring 42 to expand and move the piston 30 and the right side control arm 32 in the lower position, relative to the location of figure 1, as shown in figure 2. This movement of the control arm 32 pushes the valve plate 34 from the opening of the valve 20 that opens the control valve 14. Figure 2 shows the valve plate 34 in the normal open operating position. The device configured in this manner, can conduct gas through the penetration hole of the valve 20 to the output 18 of the regulating valve 14.

In the standard gas pressure regulator 10 shown in figure 1, the node is Board 26 also functions as a relief valve, as illustrated above. For this purpose, the control unit 26 is equipped with a balancing spring 44 and exhaust valve 46. The membrane 28 includes a hole 48 in the middle of which, and through the piston 30 passes sealing cuff 50. Balancing spring 44 is located between the piston 30 and the membrane 28 to the normal mode of operation to displace the membrane 28 relative to the sealing cuff 50 to cover the holes 48. In the event of a problem such as breakage of the handle 32, the valve plate 34 can no longer directly control the control unit 26, therefore, the input stream moves the valve plate 34 to the maximum open position. This allows the maximum amount of gas to get to the actuator 12. Thus, as soon as the gas fills the actuator 12, the pressure on the diaphragm 28 is increased by squeezing the membrane 28 of the sealing cuff 50, thereby impacting the hole 48. As a result, the gas passes through a hole 48 in the membrane 28 and toward the exhaust valve 46. The exhaust valve 46 is composed of a valve stem 52 and the stretching of the spring 54, the pressure in the closed position on the valve stem 52, as shown in figure 2. If the pressure inside the actuator 12 and surrounding the exhaust valve 46 reaches a predetermined limit, the valve stem 52 moves upward relative to the provisions of the Oia snatch spring 54 and opens thereby releasing gas into the atmosphere and reducing the pressure in the regulator 10.

The performance of the controller is determined by the volume of liquid that he could miss, while maintaining the outlet pressure at a predetermined level. In traditional gas pressure regulator 10, the regulating spring 42 is initially creates a smaller force, stretched and moving the control handle 32 to open the valve box 20. In addition, as soon as the regulating spring 42 is stretched, the membrane 28 is deformed, which increases the area of the membrane 28. A smaller force applied by the regulating spring 42, and the increased size of the membrane 28 in this mode of operation leads to the fact that the force created by the regulating spring 42 may not sufficiently to balance the force produced by the diaphragm 28, which thus leads to control the exhaust pressure, lower than what was originally installed by the user. This phenomenon is known as "droop". If there is a "recession", the outlet pressure drops below the set reference level, and a gas pressure controller 10 may not operate correctly. As soon as the outlet pressure drops, the amount of fluid to be bypassed in order to maintain value range of the output pressure, which is also called the nominal bandwidth, reduces the I. Thus, there is a need to increase the efficiency of the standard gas pressure regulators by reducing or eliminating the effect of "decline" in relation to the ability of the regulator to maintain final control pressure at the desired set pressure and to maximize the volume of liquid passing through the valve.

Another factor affecting the performance of the regulator 10 is the impact force of inlet pressure on the valve plate 34. When the actuator 12 is in the open position, as shown in figure 2, the input pressure of the liquid passing through the penetration hole of the valve 20, the pressure on the valve plate 34, shifting it to the open position. Thus, the power input pressure and its fluctuations can affect the efficiency of the actuator 12 in the context of maintaining the output pressure at the level of the preset values. For example, as soon as the input pressure increases, so that the control unit 26 has moved the valve plate 34 in the direction of the flow openings of the valve 20 and reduced the flow of fluid passing through the valve 14, you need a higher output pressure. The task is complicated for regulators with large through-holes with a higher inlet pressure. In some models, you must install the regulators with men who Shui nominal capacity, to avoid overpressure in the parts of the system, following the regulator. Accordingly, there is a need to create a gas pressure regulators, are less sensitive to changes in the input pressure in the bore hole of the valve.

Disclosure of inventions

In one aspect, the invention relates to a liquid regulators, which may have a valve with a first input, a first output and a first orifice located between the first input and first output and the actuator connected to the valve. The actuator may consist of a casing connected with the valve, the first valve plate located inside the valve and adapted to move from a closed position closing the first flow opening of the valve in open position, away from the first bore hole of the valve, and the first membrane located inside the casing and dividing the casing in the first cavity and the second cavity. The first membrane is functionally connected with the first valve plate, and the first cavity of the casing is in fluid communication with the first valve outlet. Further, the fluid controller may be a device that provides a pressure which is connected to the valve and actuator. The device that provides the load pressure, may consist of a casing with a second entrance, weringerode and the second orifice valve (located between the second input and the second output), the second inlet is in fluid communication with the first inlet and the second outlet is in fluid communication with the second cavity of the casing; a cap connected to the housing; a second valve plate (located inside the housing and adapted to move from a closed position closing the second penetration hole of the valve in open position, that is, away from the second bore hole of the valve); the second membrane (located inside the hood and dividing the cap on the first cavity and the second cavity, functionally associated with the second valve plate); the second cavity of the cap is in fluid communication with the second output; and with regulating spring (located inside the second cavity of the hood and aligned with the second membrane). The second membrane and regulating spring can be configured to move the second valve plate in the open position if the pressure on the second output falls, and in the closed position if the pressure on the second output increases, thus supporting the pressure inside the second cavity of the actuator is approximately equal to the pressure load. The actuator may be configured to move the first valve plate in the open position if the pressure at the first output falls, and in the closed position, if the pressure at the first output grows, and thus on the pressure at the first output approximately equal to the pressure.

In another aspect, the present invention relates to liquid regulator with valve and actuator connected to the valve, where the valve has a first input, first output and the first penetration hole of the valve located between the first input and the first output and the actuator has a first valve plate (which moves from a closed position closing the first flow opening of the valve in open position, that is, away from the first bore hole of the valve and a first membrane, which divides the actuator to the first cavity and the second cavity. The first cavity is in fluid communication with the first valve outlet, where the first membrane is functionally connected with the first valve plate that provides its movement from the open position to the closed. Liquid pressure regulator can be improved by incorporating a device that provides pressure connected to the valve and the actuator, which may consist of a housing with the second input; a second output and a second orifice valve (located between the second input and second output), while the second inlet is in fluid communication with the first inlet and the second outlet is in fluid communication with the second cavity of the actuator; a cap connected to the housing; a second valve plate (located inside korpusa adapted to move from a closed position, closing the second penetration hole of the valve in open position, that is, away from the second valve open); the second membrane (located inside the hood and dividing the cap on the first cavity and the second cavity, functionally associated with the second valve plate, with the first cavity of the cap is in fluid communication with the second outlet; and a regulating spring (located inside the second cavity of the hood and aligned with the second membrane). The second membrane and regulating spring can be configured to move the second valve plate in the open position if the pressure on the second output falls, and in the closed position if the pressure on the second output increases, thus supporting the pressure inside the second cavity of the actuator is approximately equal to the pressure load. The same drive with the load pressure to the first membrane may be configured to move the first valve plate in the open position if the pressure at the first output falls, and in the closed position, if the pressure at the first output grows, thus supporting the pressure at the first output approximately equal to the pressure.

In another aspect, the invention relates to a liquid regulators, which may have a valve to the first input, the first output and the first orifice of the valve, the arrangement is tion between the first input and the first output, and an actuator connected with the valve. The actuator may include a first valve plate, located inside the valve and adapted to move from a closed position closing the first flow opening of the valve in open position, that is, away from the first valve open; first membrane is functionally associated with the first valve plate to move the first valve plate from the open position to the closed, in which the first plane of the first membrane is in fluid communication with the first valve outlet. Liquid controller also may include a device that provides a pressure which is connected to the valve and actuator. In the device, which pressure may be second input and second output, where the second inlet is in fluid communication with the first inlet and the second outlet is in fluid communication with the second plane of the first membrane. Device load pressure is configured to increase the pass-through fluid flow, if the pressure on the second output is less than the pressure of the load and the second throttle valve opening is located between the second inlet and the second outlet. The second inlet may be in fluid communication with the first inlet and the second outlet may be in fluid communication with the second cavity of the housing. The mouth of austo load pressure can be adjusted to increase the flow through the fluid, if the pressure on the second output falls, and to reduce the flow through the fluid if the pressure on the second output grows, to maintain pressure on the second plane of the first membrane is approximately equal to the pressure load. The actuator may be configured to move the first valve plate in the open position if the pressure at the first output falls, and in the closed position, if the pressure at the first output grows, to maintain the pressure at the first output is approximately equal to the specified value.

Additional aspects of the invention defined in the claims of this patent.

Brief description of drawings

Figure 1 - gas pressure regulator in lateral cross-section, in the closed position;

Figure 2 - gas pressure regulator, shown in figure 1, in side cross section in the fully open position;

Figure 3 shows the gas pressure regulator in lateral cross-section, the device load pressure regulating shut-off mechanism, in accordance with this description, in the closed position; and

Figure 4 - gas pressure regulator, shown in figure 3, in lateral cross section.

The implementation of the invention

Although, the text below contains a detailed description of numerous different embodiments of the invention, it is necessary PON the mother, what is valid scope of the invention defined in the claims at the end of this patent. It should also be understood that the detailed description of the invention contains only examples, and not all possible embodiments of the present invention, since the description of all possible options would be if not impossible, then at least, impractical. Numerous alternative embodiments of the present invention which could be implemented using existing technologies or technologies that will be developed after the filing date of this patent application, still fall within the scope of the claims defined by the formula of the present invention.

It should also be understood that, except when some term is specifically defined in this document as a separate proposal "For the purposes of the present description, the term "" must mean ..." or similar

the proposal is of such a term is not limited to, neither explicitly, nor implicitly, simple and ordinary meaning, and the meaning of such a term should not be limited by any statement contained in any section of this description of the invention (except for patent claims). The terms listed in the claims at the end of this document, mention is evident in the description of the invention, each in its sole value only for the sake of clarity, in order not to confuse the reader, and not assume that these terms are listed in the claims should be limited (implied or otherwise) as a single value. Finally, except when the element of the claims is determined by the mention of the word "means" and a function without describing any patterns that are not supposed to interpret the full value of any element of the claims based on the use of U.S.C., section 35, 112, sixth paragraph.

Figure 3 and 4 shows the gas pressure regulator 110, constructed in accordance with one embodiments of the present invention. The gas pressure regulator 110 is composed of the actuator 112 and the control valve 114. The control valve 114 has an input 116 that receive gas from, for example, gas distribution system, and the output 118, and is then delivered gas, for example, the object having one or more gas appliances. The actuator 112 is connected to control valve 114 and has a control node 120 with such a control element as the valve plate 122. In terms of the so-called first or normal mode of operation, the control unit 120 measures the outlet pressure regulating valve 118 114, i.e. the discharge pressure, and controls the position of valve plate 122 so that the exhaust pressure is roughly equal to a predetermined specified value - the control pressure value.

Next, with reference to figure 3, the control valve 114 determines the size of the connecting part 124 and opening valve 126. The connecting portion 124 is located between the inlet 116 and outlet 118 with orifice valve 128. To move between the inlet 116 and outlet 118, the gas must pass through the throttle valve opening 128 of the control valve 114. The throttle valve opening 128 can be retrieved from the control valve 114 and replaced with a different orifice valve that has a different inner diameter or configuration of the pipe to match the flow parameters and operational characteristics of the control valve 114 for a particular application. In the described embodiment, the valve opening 126 determines the size of the holes located along an axis perpendicular to the axis of the inlet 116 and outlet 118 control valve 114.

The actuator 112 consists of a housing 130 and a control node 120, as mentioned above. The housing 130 is composed of the upper housing 130A and the lower housing 130b fastened together, for example, many of the staples. The lower part of the housing 130b changes the size of the control cavity 132 and the bore of the actuator 134. Of the actuator 134 is connected with the hole 126 of the control valve 114 to provide fluid communication between the actuator 112 and a control valve 114 Upper part of the housing 130A determines the size of the cavity load pressure 136 and the inlet 138. In addition, the upper part of the housing 130A has an element tower 140, which is an element of the control unit 120, the purpose of which will be described below.

The control unit 120 consists of a membrane node 142, drive, and balancing node 144. Membrane node 142 consists of a membrane 148, the piston 150, the device load pressure 152, the locking spring 154, nests blocking the spring 156 and the guide of the piston 158. Device load pressure 152 replaces the regulating spring 42 of the actuator 12 shown in figure 1, to apply a force on the membrane 148 method, which we will discuss in more detail below. Despite the fact that the regulating spring not shown in the illustrated embodiment, the actuator 112, the pressure regulators direct action with the load pressure can be performed in the modification, including the regulating spring and the device load pressure simultaneously with the actuator to adjust the output pressure. The membrane 148 consists of a membrane round shape, which determines the size of the hole corresponding to the Central part. The membrane 148 is made of a flexible, virtually airtight material, its edge tightly fixed between the upper 130A 130b and lower parts of the housing 130. Thus, the membrane 148 separates the cavity of the load pressure 136 from the control cavity 132. The top is part of the membrane 160 is located at the top of the membrane 148 and determines the size of the hole, located concentric with the hole of the membrane 148. The upper part of the membrane 160 also determines the size of the exhaust hole 162 through which is provided a liquid oral communication load pressure 136 with the control cavity 132, which we will discuss in more detail below.

In the described embodiment, the piston 150 is in General an elongated sarinena detail, with part of the seal 164 and head plate 166. Part of the sealing lip 164 is a concave surface and has a disk shape. It is located around the circumference of the middle part of the piston 150, directly under the membrane 148. The upper part of the membrane 160 and seal 164 fastened to each other and/or with a membrane 148 in the Central hole, forming a jumper. Seal 164 defines a second outlet opening 168 through which it communicates with the exhaust hole 162, providing fluid communication between the cavities 132, 136. Traverse 166 includes a cavity containing coupling 172, which is connected with a part of the disk and node balancing 144, to the connection node of the membrane 142 and disk and balancing node 144, as will be described later.

The piston 150 extends upward through the opening in the membrane 148 and the upper part of the membrane 160, respectively. The upper sliding part of the piston 150 slides what about the cavity 158 in the guide piston 158, which ensures the alignment of the piston 150 and the remaining part of the control unit 120. Socket locking spring 156 is located at the upper end of the piston 150, thus locking the spring 154 connected between the socket, the spring 156 and the guide of the piston 158. The locking spring 154, a nest of springs 156 and guide the piston 158 is located inside the element tower 140 upper housing 130A. Guide piston 158 is threaded into the element tower 140 and, thus, rotates, moving along the axis inside the element tower 140 and adjusting the tension of the locking spring 154. Alternatively, or in addition to the above-described construction, the upper part of the piston 150 can be threaded into the socket, the locking spring 156, which is located around it so that the slot of the spring 156 can be rotated around the piston 150 and, thus, to adjust the tension of the locking spring 154, or remove for replacement this spring 154. The locking spring 154 is attached to a guide piston 158. The spring applies force up to the terminal block spring 156 and then to the piston 150 to provide power shift toward the closed or locked position of the controller 110 as shown in figure 3.

The pressure provided by the device load pressure 152, acts on the control cavity 132, and the change in aetsa membrane 148. As already mentioned, the pressure in the cavity 132 is equal to the outlet pressure regulating valve 118 114. Accordingly, the force generated by the device load pressure 152, sets the discharge pressure at a predetermined pressure or control pressure to the gas pressure regulator 110. Next, we take a closer look at the configuration and operation of the device load pressure 152. It should be noted that the membrane 148 is installed in an inverted position relative to the membrane 28, izobrazhennoy figures 1 and 2, since the pressure of the load is equal to or greater than a reference pressure, and it will apply a force to the membrane 148 from top to bottom.

The host membrane 142 is functionally connected with the disc and balancing node 144, as mentioned above, through the yoke 166 of the piston 150 coupling 172, and through the handle 176. Disk and balancing node 144 includes a drive shaft 178 which is driven by a control arm 176 and actuates the valve plate 122, moving from the open position to the closed and back, bending the membrane 148 under the influence of change of output pressure. In particular, the drive shaft 178, as a rule, is a long rod, the end surface which is connected to the operating handle 176. The handle 176 is a slightly lawsuit is ivlany rod with a reference point a and the free end 176b. Datum a pivotally connected with the lower part of the body 130b and includes finger 180 having a rounded end and a mating end surface of the drive rod 178. The free end 176b is located between the upper part a and terminal 172b of the coupling 172, which is connected with the yoke 166 of the piston 150. Thus, coupling 172 and the control arm 176 functionally connect the drive and balancing node 144 with the host membrane 142.

The valve plate 122 of the disc and balancing node 144 is functionally connected with the drive shaft 178, and contains part of the external disk 182 and coaxial inner part of the disc 184. Part of the external disk 182 has a chute which includes o box 186, sealing surface which connects with the outlet flow openings of the valve 128, and blocks fluid flow through the control valve 114. Part of the disk 182 and 184 are connected with the drive shaft 178 through the opening of the regulating rod 188 and socket balancing springs 190, these elements perform a rectilinear motion by means of the guide rod 192, the retaining strap 194, Circlip regulatory membranes 196 and the governing body of the channel 198. Guide rod 192 without gap enters into the inlet of the actuator 134 and consists of a cylindrical inner part that holds the drive shaft 178. Towards the shining rod 192, also includes 200 channels through which creates part of the way, placing the output 118 in fluid communication with the control cavity 132, as will be shown below.

Guide rod 192 engages with the locking bar 194, which is located between the guide rod 192 and the housing of the balancing channel 198 to hold the retaining bracket 194 and the housing of the balancing channel 198 in place in the inlet valve 126. The retaining strap 194 is usually circular and includes a Central hole through which passes the shaft of the balancing channel 188. The housing of the control channel 198, generally cylindrical and hollow, he comes to valve openings 128 and has an internal diameter corresponding to the size of the valve plate 122. The retaining ring diaphragm 196 is located within the housing of the regulating channel 198 and the holes of the locking strips 194 and is held in place between the surface of the locking strips 194 and the inner edge of the governing body of the channel 198. Within the corps regulatory channel 198 provides for regulating the membrane 202 in the form of a disk with a hole in the center. Regulating diaphragm 198 is made of flexible, virtually airtight material, and its outer surface is secured between the retaining ring regulating membrane 196 and housing regulatory Kahn is 198 La. The inner face of the center hole of the regulating membrane 202 is tightly fixed between the valve plate 122 and the stem of the regulating channel 188. The valve plate 122, the piston rod of the regulating channel 188 and the drive shaft 178 is displaced toward the open position of the control valve 114 by means of the balancing spring 204 is located between the slot of the spring 190 and the bearing surface of the locking ring of the membrane 196.

Regulating membrane 202 transmits the force on the valve plate 122 in the direction of the flow openings of the valve 118 to compensate for the pressure on the valve plate 122, due to the inlet pressure of the fluid passing through the throttle valve opening 118. The outer diameter of the inner part of the disk 184 is less than the inner diameter of the outer part of the disk 182, this allows fluid to pass in a passage 206 of the inner part of the disk 184 and corresponding to a passage 208 inside the stem of the regulating channel 184. Channel 208 opens into retaining ring diaphragm 196, thus providing liquid communication surface regulating membrane 202 opposite bore holes of the valve 118 to the input pressure, which acts on the valve plate 122. Components of the disk and node balancing 144 are configured to create a counteracting pressure on regulatory memb the Anu 202, approximately equal to the input pressure on the valve plate 122 and, thus, the effect of inlet pressure on the host membrane 142 and, thus, provide a more accurate regulation of the output pressure of the gas pressure regulator 110.

Feedback on the output pressure is transmitted into the control cavity 132 of the actuator 112 through the Pitot tube 210 with the point of measurement at the output 118 of the control valve 114. Pitot tube 210 passes through the inlet valve 126 and through the openings in the housing of the control channel 198 and retaining strap 194, respectively. Pitot tube 210 transmits the output pressure on the inner part of the guide rod 192, and in the control cavity 132 through 200 channels of the guide rod 192.

As discussed previously, the device load pressure 152 replaces the regulating spring in the actuator 112 and creates a force opposite to the output pressure acting on the opposite membrane 148. In the embodiment of the invention, the device load pressure 52 is implemented in the form of a controller, which receives the liquid through the inlet 220 to the input pressure, and releases the fluid through the outlet 222 with a given or desired pressure load. The inlet 220 and outlet 222 are placed in the housing 224 of the controller 152 orifice valve 226 located between the inlet 220 and outlet 222. idcast is fed to the input 220 through the supply pipe inlet pressure 228, the opposite end of which is connected to the channel inlet pressure 230 control valve 114. The supply pipe 228 provides liquid communication between the inlet 220 of the controller 152 and the inner part of the control valve 114 above the orifice of the valve 128. The upper part of the housing 130A of the actuator 112 is modified in comparison with the actuator 12 and includes an inlet pressure load 138, which extends into the relief cavity 136 and is connected to the output 222 of the controller 152 by means of the channel 234 that provides fluid communication between the output 222 of relief cavity 136 and the corresponding surface of the membrane 148.

The control unit 236 is provided in the controller 152 to provide pressure at the outlet 222 of the controller 152, i.e. the pressure load, in accordance with the desired pressure of the load required to drive 112 in order to maintain the set value of the output pressure. The control unit 236 measures and regulates the pressure of the load on the controller 152. In particular, the control unit 236 is equipped with a membrane 238 regulating spring 240 and the handle or valve stem 242 with the valve plate 244. Standard valve plate 244 usually consists of a cylindrical body and an upper part in the form of a cone or truncated cone connected to the control arm 242, and the size is relevant to the duty to regulate flow to the valve hole 226, to ignore or block the flow of fluid through the valve block 224. Valve spring 246 is located between the bottom surface of the valve plate 244 and the surface of the fixing stopper valve 248, bias the valve plate 244 to the closed position as shown in the figure. Valve spring 246 allows the valve plate 244 is displaced downward from the valve hole 226 due to the force of the regulating spring 240 and transmits the fluid passing through the valve hole 226, as described below. The valve plate 244, valve spring 246 and the stopper valve 248 fortified inside the housing 224 of the front orifice of the valve 226 through the bottom plate 250 is fastened to the lower open end of the body 224.

The controller 152 also has a cap 252, covering the membrane 238 and regulating spring 240 on the upper part of the body 224. The membrane 238 consists of a membrane in the form of a disc, which determines the size of the hole corresponding to the Central part. The membrane 238 is made of flexible, virtually airtight material, its edge tightly fixed between the cap 252 and the housing 224. Thus, the membrane 238 separates the control cavity 254 regulator 152 from the cavity of the cap 256 with regulating spring 240. Head diaphragm 258 and the socket of the lower spring 260 is located above the membrane 238 and determine the size of the hole is the CSOs in alignment with the hole of the membrane 148. Hour of the pusher 262 with the Central bushing and protruding outward flange is located on the side of the control cavity membrane 238, with the sleeve, protruding through the holes of the membrane 238, head 258 and the socket of the spring 260. Hour of the pusher 262 fixed by means of retaining springs 264, pressed over the sleeve and near the upper surface of the slot of the spring 260.

Regulating spring 240 is located between the bottom slot of the spring 260 and the upper socket of the spring 266, the upper nest of springs 266 presses the regulating spring 240 to the lower slot of the spring 260. The adjusting screw 268 passes through a threaded hole in the upper part of the cap 252 comes into contact with the upper surface of the upper socket of the spring 266, holding the top slot of the spring 266 inside the cap 252. Thus, the regulating spring 240 is fixed to the cap 252 and applies a force directed downwards to the lower slot of the spring 260 and the membrane 238. In the described embodiment of the invention, the forces generated by the regulating spring 240 are configured using the adjustment screw 268, which raises or lowers the top slot of the spring 266. Adjustment efforts generated by the regulating spring 240, allows you to properly adjust the pressure load controller 152 to the actuator 112.

The valve stem 242 and valve plate 244 functionally with whom are closely linked to the membrane 238 and regulating spring 240. Hour of the pusher 262 has a groove inside the sleeve and is located opposite the control cavity 254 and pass hole of the valve 226. Soft nest 272 is located inside the gutter rack pusher 262 and holds the end of the valve stem 242 opposite the valve plate 244. Thus, the valve stem 242 and valve plate 244 can move up and down when the membrane 238 flexes in response to changes in load pressure. Through the upper part of the bore hole of the valve 226 for valve plate 244 passes the channel 274, which is combined with the corresponding hole in the housing 224, providing liquid communication between the control cavity 254 and, accordingly, the membrane 238 exit 222, allowing, thus, the membrane 238 to measure the current pressure of the load at the output 222 and safety inside the cavity 136 of the actuator 112.

Figure 3 shows the gas pressure regulator 10 in this embodiment osushestvleniya with the valve plate 122 in the valve block 114 and the valve plate 244 in the closed or locked position. In this configuration, the gas does not pass through the throttle valve opening 128 of the control valve 114 or through the penetration hole of the valve device 226 load pressure 152. This modification includes a control valve 114, because the outlet pressure corresponding to the pressure in the control cavity 136 of the housing 126 and the measured membrane 146, exceeds the force generated by the pressure of the load corresponding device 152. Accordingly, the output pressure at the output 118 moves the membrane 148 and the piston 150 to the closed position. Such modification can be achieved using the device load pressure 152, since the pressure of the load corresponding to the pressure control cavity 154 of the housing 224 plus the force of valve spring 246 is greater than the pressure regulating spring 240 on the membrane 23, the pressure load to enable movement of the membrane 238 and valve plate 244 to the closed position. If the actuator 112 and the device load pressure 152 are closed, the pressure goes down through the outlet opening 162, 168 until such time as the pressure of the load and the output pressure will equalize. When the pressure on both sides of the membrane 148 is aligned, the locking spring 154 moves the node membrane 142 upward, leaving the valve plate 122 in the closed position.

As soon as the demand in the distribution system increases, for example, the user begins to use the device, such as a heater, stove, etc., gas begins to flow from the output 118 and, accordingly, the regulating cavity 132 of the actuator 112 thereby reducing the pressure measured by membrane 148. With decreasing pressure, as measured by the regulating membrane cavity 148, there is an imbalance between the power of Yes is ing the load and the force of the discharge pressure on membrane 148, the pressure load exceeds the force of the blocking spring 154, moving the diaphragm 148 and the piston 150 down relative to the housing 130, as shown in figure 4. This causes the control arm 176 to rotate clockwise which in turn rotates the finger 180 relative to the surface 182 of the drive shaft 178. Thus, the drive shaft 178 and the valve plate 122 move away from the outlet 124 of the bore hole of the valve 128 under pressure balancing springs 200, opening the control valve 114.

As the membrane 148 is moved down, the volume of the liquid inside the cavity of the load pressure 136 is increased, and the increased volume of the cavity of the load pressure 136 together with the release of the gas in the control cavity 132 through the outlet opening 162, 168 provides the necessary reduction in pressure in the cavity 136. At the same time, reducing the pressure load leads to an imbalance between the force of the regulating spring force and the pressure load on the diaphragm 238 device load pressure 152, thus regulating spring 240 straightens up and moves the membrane 238 down relative to the housing 224. As a result of displacement of the membrane 238 the valve stem 242 and valve plate 244 are omitted, thus, the valve plate moves, passing the fluid flow through the valve hole 226 in the relief cavity 136 of the actuator 112. The liquid is falling in relief cavity 136, increases the pressure load on the diaphragm 148 and the pressure on the membrane 148 is not reduced, as in the case of actuator 112 when the force generated by the regulating spring 42, is reduced because of the regulating spring 42 straightens and opens the control valve 14.

When the demand in the distribution system drops, for example, when the user turns off its gas appliances, gas pressure regulator 110 is initially reacts by reducing the flow of fluid through the control valve 114. As the gas continues to flow through the throttle valve opening 128 in the child elements of the system, the pressure at the outlet 118 increases, as well as in the control cavity 132 of the actuator 112. As the pressure on the membrane 148 increases and exceeds the force of the pressure load, the membrane 148 and the piston 150 to move upward relative to the housing 130. The upward movement causes the control arm 176 to rotate in a counterclockwise direction which in turn moves the drive shaft 178 and the valve plate 122 in the direction of valve opening 128, reducing the flow of fluid through the control valve 114. Under normal conditions, the discharge pressure will drop to approximately the value set on the drive and will be maintained at this level until demand in the downstream elements of the system will not cause a corresponding reaction of the actuator 12.

The membrane 148 is shifted upward, the volume of fluid inside the cavity of the load pressure 136 decreases and the decrease of the volume of the cavity in the cavity of the load pressure 136 entails an increase in load pressure inside the cavity of the load pressure 136 and regulatory cavity 132 of the controller 152. The pressure load on the diaphragm 238 increases and, eventually, greater than the force of the regulating spring 240, moving the membrane 238 up. Moving the membrane 238 up allows the valve plate 244 to move up, reducing the flow of fluid passing through the regulator 152. Under normal conditions, the pressure load will be equal to the pressure in the control cavity 132 and will be maintained at this level until demand in the downstream elements of the system will not cause a corresponding reaction of the actuator 112 and the controller 152.

Use the gas pressure regulator device, providing the load pressure, and a regulating mechanism, as described above, provides a number of advantages. For example, regulators in accordance with this description can be used in systems with presumably higher inlet pressure, without sacrificing quality control and accuracy of the pressure at the outlet. At higher inlet pressures, the impact of regulatory membrane on the valve plate 122 increases, before Trasa the effect of inlet pressure on the management node 120. These regulators can also be used in conditions with potentially high fluctuations in the inlet pressure, as regulatory locking mechanism neutralizes the effects of fluctuations in the inlet pressure on the outlet pressure. Thus, regulatory locking mechanism ensures that a higher power controls and greater accuracy in the adjustment of the output pressure of the regulator. The pressure also creates the opportunity to increase the capacity of the regulator. The effects of the recession", while ensuring regulator final control pressure at the desired set level is reduced, because the device providing pressure, can maintain a stable load on the diaphragm of the regulator, in contrast to the unstable regulatory efforts springs. Moreover, the stability of the load leads to increased precision control provided by the controller.

The preceding text is a detailed description of numerous different implementations of the invention, but it should be understood that the legal scope of the invention is defined by the words of the claims set forth at the end of the application the priority of the patent. A detailed description is illustrative only and does not describe all possible modifications of the invention, since the description of all possible modify the Nations impractical and potentially impossible. You can create many alternative modifications using any modern technology or technologies that will be developed after the date of registration of the claims of this patent, which also falls fall within the scope of the claims defined by the formula of the present invention.

1. Fluid pressure regulator including:
valve having a first input, first output and the first penetration hole located between the first entrance and a first exit;
an actuator connected with the valve, consisting of:
casing connected with the valve,
the first valve plate located inside the valve and adapted to move from a closed position closing the first flow opening of the valve in the open position, at a distance from the first bore hole of the valve, and
the first membrane located inside the casing and dividing the casing in the first cavity and the second cavity, and functionally associated with the first valve plate, and the first cavity of the casing is in fluid communication with the first valve outlet;
device load pressure, is connected to the valve and the actuator, including:
the housing having a second input, the second output and the second penetration hole of the valve located between the second inlet and the second outlet and the second inlet is in fluid communication with Irvington, and the second outlet is in fluid communication with the second cavity of the casing;
a cap coupled to the housing,
the second valve plate located inside the housing and adapted to move from a closed position closing the second throttle valve opening, to an open position away from the second bore hole of the valve
a second membrane that is located inside the cap and divides the cap on the first cavity and the second cavity, and functionally associated with the second valve plate, and the first cavity of the cap is in fluid communication with the second output, and
regulating spring disposed within the second cavity of the cap, an exciting second membrane,
the second membrane and regulating spring configured to move the second valve plate in the open position if the pressure on the second output falls, and to move the second valve plate in the closed position if the pressure on the second output grows to such an extent that the pressure in the second cavity of the actuator approximately compared to the pressure load,
and the actuator is configured to open the first valve plate, if the pressure at the first output falls, and close the second valve plate, if the pressure at the first output grows to such an extent that the pressure at the first output CA is approximately compared with the set pressure.

2. Fluid regulator according to claim 1, characterized in that the actuator consists of a control arm mounted on a swivel inside the casing and functionally connecting the first membrane from the first valve plate, the first membrane rotates the handle in the first direction to move the first valve plate in the open position if the pressure at the first input decreases and rotates the handle in a second direction to move the first valve plate in the closed position, if the pressure at the first input falls.

3. Fluid regulator according to claim 1, comprising a Pitot tube having a first end located inside the first valve outlet and the second end being in fluid communication with the first cavity of the casing to provide fluid communication of the first cavity of the casing with the first valve outlet.

4. Fluid regulator according to claim 1, comprising regulating the membrane, functionally connected with the first valve plate and the first side surface being in fluid communication with the inlet pressure of the fluid passing through the first penetration hole of the valve, and the inlet pressure acting on the first side surface regulating membrane, applies a force to the first valve plate toward the closed position and is what I is approximately equal to the power inlet pressure at the first valve plate.

5. Fluid regulator according to claim 1, characterized in that the device load pressure includes a valve stem, functionally connecting the second membrane with the second valve plate, and the second diaphragm moves the valve stem in the first direction to open the first valve plate, if the pressure at the second output falls, and moves the valve stem in the second direction to close the second valve plate, if the pressure at the second output falls.

6. Fluid regulator according to claim 1, characterized in that the device load pressure includes a valve spring, an exciting second valve plate and bias it toward the closed position depending on the strength of the bias of the regulating spring.

7. Fluid regulator according to claim 1, characterized in that the device load pressure includes adjusting mechanism regulating spring, which is in contact with the regulating spring for adjusting the force exerted by the regulating spring to the second membrane to increase and decrease the pressure load that the device load pressure applies to the second cavity of the casing, and accordingly to increase or decrease the set pressure on the liquid controller.

8. Fluid regulator according to claim 7, characterized in that the adjusting mechanism regulating spring on the em in yourself adjusting screw, passing through the screw hole at the top of the cap and functionally associated with the regulating spring and the force applied by the regulating spring to the second membrane, increases when the adjusting screw is rotated in the first direction, and decreases when the adjusting screw is rotated in the second direction.

9. Fluid regulator having a valve and an actuator connected with the valve, and the valve has a first input, first output and the first penetration hole located between the first input and the first output and the actuator has a first valve plate, which is moved from a closed position closing the first flow opening of the valve in open position, away from the first bore hole of the valve, and the first membrane, which divides the actuator to the first cavity and the second cavity, the first cavity is in fluid communication with the first valve outlet and the first membrane is functionally connected with the first valve the plate that provides its movement from the open position to the closed, containing:
device load pressure associated with the valve and the actuator, including:
the case with the second input; a second output and a second orifice valve disposed between the second input and second output, the second input n is located in liquid communication with the first inlet, and the second outlet is in fluid communication with the second cavity of the casing;
a cap coupled to the housing;
the second valve plate located inside the housing and adapted to move from a closed position closing the second throttle valve opening, to an open position away from the second bore hole of the valve;
a second membrane that is located inside the hood and dividing the cap on the first cavity and the second cavity, functionally associated with the second valve plate, and the first cavity of the cap is in fluid communication with the second output; and
regulating spring disposed within the second cavity of the cap and coupled with the second membrane
the second membrane and regulating spring configured to move the second valve plate in the open position if the pressure on the second output falls, and in the closed position if the pressure on the second output increases, thus supporting the pressure inside the second cavity of the actuator is approximately equal to the pressure of the load;
and the actuator load pressure to the first membrane is configured to move the first valve plate in the open position if the pressure at the first output falls, and in the closed position, if the pressure at the first output grows, thus supporting the pressure at the first output out is equal to a sustained fashion pressure.

10. Fluid regulator according to claim 9, in which the device load pressure includes a valve stem, functionally connecting the second membrane with the second valve plate, and the second diaphragm moves the valve stem in the first direction to open the first valve plate, if the pressure at the second output falls, and moves the valve stem in the second direction to close the second valve plate, if the pressure at the second output falls.

11. Fluid regulator according to claim 9, in which the device load pressure includes a valve spring, an exciting second valve plate and bias it toward the closed position depending on the strength of the bias of the regulating spring.

12. Fluid regulator according to claim 9, in which the device load pressure includes adjusting mechanism regulating spring, which is in contact with the regulating spring for adjusting the force exerted by the regulating spring to the second membrane to increase and decrease the pressure load that the device load pressure applies to the second cavity of the casing, and accordingly to increase or decrease the set pressure on the liquid controller.

13. The fluid controller according to item 12, in which the adjusting mechanism regulating spring includes an adjusting screw passing che is ez threaded hole at the top of the cap and functionally associated with regulating spring, moreover, the force applied by the regulating spring to the second membrane, increases when the adjusting screw is rotated in the first direction, and decreases when the adjusting screw is rotated in the second direction.

14. Fluid pressure regulator including:
valve having a first input, first output and the first penetration hole of the valve located between the first entrance and a first exit;
an actuator connected with the valve, consisting of:
the first valve plate located inside the valve and adapted to move from a closed position closing the first valve hole, in the open position, at a distance from the first valve hole, and
the first membrane is functionally associated with the first valve plate that provides its movement from the open position to the closed, and the first plane of the first membrane is in fluid communication with the first valve outlet;
and the device load pressure, is connected to the valve and the actuator, which has a second input and second output, and the second inlet is in fluid communication with the first inlet and the second outlet is in fluid communication with the second plane of the first membrane, and the device load pressure is configured to increase the pass-through fluid flow, if Yes is executed on the second output less than the pressure of the load, and the second throttle valve opening is located between the second inlet and second outlet, the second inlet is in fluid communication with the first inlet and the second outlet is in fluid communication with the second cavity of the casing;
the device load pressure is configured to increase the pass-through fluid flow, if the pressure at the second outlet decreases and to decrease the flow of fluid if the pressure on the second output grows, and provides pressure on the second plane of the first membrane is approximately equal to the pressure of the load, and an actuator configured to open the first valve plate, if the pressure at the first output falls, and close the second valve plate, if the pressure at the first output grows to such an extent that the pressure at the first outlet approximately compared with the set pressure.

15. The fluid controller according to 14, characterized in that the actuator consists of a control arm mounted on a swivel inside the casing and functionally connecting the first membrane from the first valve plate, the first membrane rotates the handle in the first direction to move the first valve plate in the open position if the pressure at the first input falls, and turns the handle in the second aims and, to move the first valve plate in the closed position, if the pressure at the first input falls.

16. Liquid regulator 14, which includes regulating the membrane, functionally connected with the first valve plate and the first side surface being in fluid communication with the inlet pressure of the fluid passing through the first penetration hole of the valve, and the inlet pressure acting on the first side surface regulating membrane, applies a force to the first valve plate in the open position and is approximately equal to the force of the inlet pressure to the first valve plate.

17. The fluid controller according to 14, characterized in that the device provides pressure, includes:
the case with the second input, the second output and the second orifice valve disposed between the second input and a second output;
the second valve plate located inside the housing and adapted to move from a closed position closing the second throttle valve opening, to an open position away from the second bore hole of the valve, and a second membrane, functionally associated with the second valve plate that provides its movement from the open position to the closed, while the first plane in the second membrane is in fluid communication with the second output device load pressure; and
regulating spring, an exciting second surface of the second membrane, the second membrane and regulating spring configured to move the second valve plate in the open position, thereby increasing the fluid flow passing through the second penetration hole of the valve, if the pressure at the second output falls, and in the closed position, reducing the flow of fluid passing through the second penetration hole of the valve, if the pressure at the second output increases, thus supporting the pressure on the second plane of the first membrane is approximately equal to the pressure of the load.

18. The fluid controller according to 17, characterized in that the device load pressure includes a valve stem, functionally connecting the second membrane with the second valve plate, and the second diaphragm moves the valve stem in the first direction to open the first valve plate, if the pressure at the second output falls, and moves the valve stem in the second direction to close the second valve plate, if the pressure at the second output falls.

19. The fluid controller according to 17, characterized in that the device load pressure includes a valve spring, an exciting second valve plate and bias it toward the closed position depending on the strength of the bias of the regulating spring.

20. The fluid controller according to 17, characterized in that the device load pressure includes adjusting mechanism regulating spring, which is in contact with the regulating spring for adjusting the force exerted by the regulating spring to the second membrane to increase and decrease the pressure load that the device load pressure applies to the second cavity of the casing, and accordingly to increase or decrease the set pressure on the liquid controller.

21. The fluid controller according to claim 20, characterized in that the adjusting mechanism regulating spring includes an adjusting screw passing through the screw hole of the device load pressure and functionally associated with the regulating spring and the force applied by the regulating spring to the second membrane, increases when the adjusting screw is rotated in the first direction, and decreases when the adjusting screw is rotated in the second direction.



 

Same patents:

FIELD: physics; control.

SUBSTANCE: invention is meant for controlling operation of a control valve 14. The pressure loaded system includes a control valve unit 12 and a servo system 16 which is connected to a line 22 for inlet of actuating fluid medium (natural gas). A pressure control line 32 connects the control system 16 to the control valve unit. A vent line 30 connects the control system 16 to line 20 for releasing excess pressure into line 32. The control valve is made with possibility of opening when control pressure reaches a given value. Control pressure overcomes the force of the spring of the control valve. The control system 16 has an electronic control unit which is functionally connected to pressure feeding and pressure release electromagnetic valves, as well as to a control pressure sensor.

EFFECT: invention prevents contamination, loss of fluid medium due to prevention of release of excess control pressure into the atmosphere.

13 cl, 2 dwg

The invention relates to distribution and may be used to regulate, stabilize and limit the flow of any gaseous media, with the exception of aggressive, gas, oil and other industries, such as reduction of natural gas supplied to the consumer with gas distribution stations, gas control points, gas-reducing installations

Pressure regulator // 2490689

FIELD: machine building.

SUBSTANCE: regulator includes a housing with inlet and outlet cavities and between them a spring-loaded sensitive element in the form of a shell, a setting cavity with an elastic element, a seat, a shutoff element in the form of a disc with a conical surface. The housing is made of two halves in the form of bowls with flanging, and in it there introduced and installed with stiff connection is a cylinder with the above mentioned shell located in it with outer surface of the bottom towards the seat installed in the inlet cavity. A safety spring is introduced to prevent mismatch of the control system at abrupt opening of the network. Elastic element for spring loading of a sensitive element in the setting cavity uses working medium the pressure energy of which is controlled with a regulator.

EFFECT: enlarging application ranges.

1 dwg

FIELD: machine building.

SUBSTANCE: valve port comprises vale body, bearing valve port defining channel converging from inlet to outlet. Convergent channel minimizes effects of boundary layer separation to maximise port capacity. Said channel may be formed inside solid part to be screwed in valve body, or in cartridge fitted in valve body to slide and to be screwed therein. Fluid control device comprises also diaphragm drive furnished with control component arranged inside valve body to control fluid flow in said body.

EFFECT: ease of use maximised capacity at preset outlet pressure.

23 cl, 5 dwg

FIELD: machine building.

SUBSTANCE: gas pressure control with a drive, a control valve and an auxiliary device. Information on outlet pressure is supplied to the drive and the auxiliary device by means of a Pitot tube located at the control valve outlet. End of the first nozzle of the Pitot tube is connected to the drive, thus providing communication between a control cavity of the drive and a membrane and outlet pressure at the outlet to maintain outlet pressure on the drive in compliance with the specified value. End of the second nozzle of the Pitot tube is connected to the auxiliary device, thus providing communication between internal area of the auxiliary device and outlet pressure at the outlet to respond to outlet pressure variations at deviation of outlet pressure from specified values of the range of normal pressure. There is a structural version of design of gas pressure control and a double-control mechanism for the above pressure control, automatic control of fluid medium pressure.

EFFECT: automatic fluid medium pressure control.

27 cl, 9 dwg

FIELD: machine building.

SUBSTANCE: measuring tube with function of pressure averaging contains: measuring part that has open end made with the possibility of location near outlet of fluid regulation device; attachment part located at an angle relatively the measuring part and made with the possibility of location near control unit of fluid regulation device and slot made in measuring part and going from the said open end to attachment part. When installing measuring tube in fluid regulation device measuring part can average the pressure in outlet and the said measuring tube transfers averaged pressure to control unit.

EFFECT: increase of fluid pressure measurement accuracy.

15 cl, 7 dwg

FIELD: machine building.

SUBSTANCE: gas pressure control includes an actuator equipped with a gate made from elastic material, a seat, inlet, outlet and control chambers; a throttle, a setting device with a control valve, a membrane unit and an adjustment mechanism. At that, inlet chamber of the actuator is connected through the throttle via a channel to the control chamber, the setting device and the outlet chamber. According to the proposal, the control includes a matching unit consisting of a chamber for gas cleaning from mechanical impurities and humidity; pneumatically operated shutoff and control device of normally open type; at that, throttle is built into the matching unit between gas cleaning chamber and shutoff and control device, and gas cleaning chamber is located on the side of inlet chamber, and setting device is connected to the shutoff and control device and outlet chamber.

EFFECT: improving operating characteristics.

9 cl, 4 dwg

FIELD: transport.

SUBSTANCE: invention relates to space technology and may be used for stabilisation of preset engine thrust by correction of spaceship motion. Tank with working medium (WMT) has three chambers. All supercharge gas (SG) is kept in extra permanent-volume tank (EPVT) adjoining WMT wall opposite the bellows. In case current and preset fuel pressures differ, defined are valid current SG temperature and pressure between bellows and EPVN, fuel mass residue, current SG volume, SG portion of EPVT required to reach operating pressure proceeding from current pressure in EPVT and interchamber channel cross-section, as well as duration of transfer of this portion into central chamber. Interchamber valves are opened and closed at preset time.

EFFECT: increased and stable thrust, accurate computation of correction parameters.

2 dwg

FIELD: physics; control.

SUBSTANCE: invention relates to means of controlling flow of a fluid medium. A guide rod has a body having an opening for inlet, with possibility of displacement with sliding, of a valve rod, and an outer surface on which there are peripheral seals which enable installation, with possibility of extraction, of the body of the guide into the housing of the controller and matching said body on position with the housing of the controller and the valve.

EFFECT: simple configuration of the controller in different operating conditions.

25 cl, 18 dwg

FIELD: machine building.

SUBSTANCE: proposed device comprises valve body with inlet, outlet and throat arranged there between, drive secured to valve body to comprise valve plate and diaphragm articulated with valve plate. Said valve plate is arranged inside valve body to reciprocate between open position and closing position in response to pressure variation and valve body outlet taken up by diaphragm. It comprises also valve port arranged in valve body throat. Note here that said port comprises cylindrical component including valve seat and channel extending through valve port. Valve seat is tightly jointed with valve plate in closing position. Note here that said valve port features selected set of parameters including channel diameter and seat height corresponding to seat length along said channel. Said set is preselected from multiple sets of parameters, each including channel diameter and seat height. Note also that seat heights of said sets are in inverse relation with channel diameters.

EFFECT: high-efficiency gas flow at preset outlet pressure.

22 cl, 5 dwg

FIELD: machine building.

SUBSTANCE: gas regulator comprises diaphragm and threaded elements including: case, adjusting screw and cover from nonmetallic thermoplastic material with moulded different-diameter threads. Case is jointed to cover by larger-diameter thread. Adjusting screw is fitted in cover by smaller-diameter thread while moulded threads on cover feature equal pitch and arranged coaxially. Note here that one of said elements has moulded thread. All elements are made from glass-filled polyamide with polyamide content of 64-75 wt %.

EFFECT: lower costs at higher quality, lower weight.

4 cl, 7 dwg

Fluid regulator // 2461046

FIELD: machine building.

SUBSTANCE: proposed device comprises valve disc and valve port made to provide for additional sealing in shutting off in the case of clogging. In the latter case, disc stays in direct contact with body section making the part of said valve port. Note here that said port comprises body and cartridge fitted therein to slide. In standard shutting off, valve disc gets in direct contact with main seat on cartridge. However at clogging, cartridge is pushed into body to force valve disc in direct contact with aforesaid additional sealing outside of cartridge.

EFFECT: increased valve capacity, decreased sizes.

26 cl, 5 dwg

FIELD: pneumatics and automatics, namely reducing and sustaining predetermined level of pressure of compressed gas in pneumatic drives of transporting and other machines, in tanks of fuel system of automobile transport at pumping fuel.

SUBSTANCE: reduction pneumatic valve includes housing with inlet and outlet ducts, calibrated orifice in inlet duct preventing increase of output pressure; spring-loaded stepped throttling valve; membrane type control unit having seat rigidly secured to membrane and elastic sealing member for minimizing change of effective surface area of membrane due to its minimum bending; valve member in the form of spherical head for reducing sealing effort, compensating membrane shift and providing intensified discharge of compressed air; filter placed at inlet of orifice for preventing clogging.

EFFECT: enhanced operational reliability, prevention of outlet pressure exceeding predetermined value, effective relief of compressed air, lowered sealing effort due to compensation of membrane shift.

3 cl, 3 dwg

FIELD: measuring equipment.

SUBSTANCE: device has thermocouple 1 with seam 2, fixedly packed in tubular case 3 with longitudinal groove 4. tubular case 3 on thread enters screw holder 5, which by its outer screw profile is screwed into coils of set-point spring 6, fixedly held on heating element 7. Outwardly bent end 8 of spring 6 is inserted into longitudinal groove 4 of tubular case 3. spring 6 is provided with sensor 9 for axial displacement of spring and sensor 10 for dynamic pressure force. Rotation of screw holder 5 shall be performed until seam 2 stops against heating element 7 to the point, when sensor 9 and sensor 10 will determine, that step S of spring 6 increased to controlled value, which matches reliable contact of seam 2 with heating element 7.

EFFECT: determined moment of contact of seam between thermocouple and heating element during manual movement of screw holder.

2 cl, 1 dwg

FIELD: engineering of devices for automatic maintenance of pressure of working substance at given level, possible use in systems for supplying natural gas to industrial and communal consumers.

SUBSTANCE: device has body with input and output hollows, locking valve, membrane sensitive mechanism, adjusting valve. Adjusting valve is controlled by membrane drive by second order lever, lever for contact interaction of rod of adjusting valve.

EFFECT: increased device operation reliability.

2 dwg

FIELD: possible use as an adjuster of flow-force characteristics of a liquid.

SUBSTANCE: adjuster contains body 1 with internal portion 2, consisting of control hollow 3, coaxial input 4 and output 5 hollows, between which adjusting organ 6 is positioned, made in form of locking element 7, rigidly connected to rod 8, and spring 9 of locking element 7. control hollow 3 is made in form of two side cylinder-shaped branches 10, connecting input 4 and output 5 hollows.

EFFECT: simplified construction of adjuster of flow-force characteristics and decreased hydraulic losses during adjusting.

1 dwg

Gas reducer // 2290682

FIELD: engineering of gas reducers.

SUBSTANCE: gas reducer contains body 1 with saddle 2 and lid 3, superstructure section, including superstructure screw 4, spring 5, membrane 6 with supporting plate 7 and pusher 8, reducing valve, consisting of hollow body 9 with through channel and thickening 10, balancing chamber 14, connected to hollow 21 of working pressure of body 1 and provided with controlling valve 17. Balancing chamber 14 may be made in body 1, or in its stopper 16, while reducing valve is mounted in the chamber with circular gap relatively to the wall of the latter. Chamber is provided with controlling valve, as spring of which spring of reducing valve is used.

EFFECT: low unevenness coefficient, low dimensions and weight of reducer.

5 cl, 1 dwg

FIELD: automatic control.

SUBSTANCE: device comprises housing, lid, adjusting spring, control members for adjusting specified parameters, and chamber that receives the diaphragm. The diaphragm divides the space of the chamber into the above-diaphragm space connected with the gas pipeline to be controlled and under-diaphragm space connected with the atmosphere. The diaphragm is mounted on the movable rod. The rod passes through the diaphragm at its center and causes the pusher to move. The pusher is connected with the second rod that is perpendicular to the first rod and connected with the third rod. The shutoff valve is mounted on the third rod. The rod of the shutoff valve is oriented parallel to the rod of the diaphragm. The second chamber of the device is positioned in the space between the lid and housing from the side of the lid. The second chamber receives the second diaphragm that is shaped similar to the first diaphragm and separates the second chamber into above-diaphragm space and under-diaphragm space. The under-diaphragm space is in communication with the atmosphere and defines a space between the lid and the second diaphragm. The second diaphragm is mounted on the same rod as the first diaphragm for permitting the above-diaphragm spaces of both of the chambers to be interconnected by means of a passage made in the hollow rod. The second chamber is defined by the cylindrical hollow housing mounted on the lid and receives the a baffle at its center provided with diaphragm for permitting the rod of the diaphragms to pass through them. The rod of the diaphragms is connected with the pusher by means of a bushing. The bushing has side passage oriented parallel to the diaphragms for connection of the above-diaphragm spaces.

EFFECT: enhanced reliability and precision.

2 dwg

FIELD: valving systems.

SUBSTANCE: device comprises pulse tube that connects the control space of pilot with the receiver of the static outlet pressure and is connected with the inner chamber and switch mounted at the site of pipe joint made of e.g. three-position cock. The flexible coupling controls the space between the side and flanges of the inlet and outlet branch pipes depending on the switch position.

EFFECT: expanded functional capabilities.

1 dwg

FIELD: pipeline engineering.

SUBSTANCE: fluid pressure regulator comprises housing provided with a flange having a number of projections shaped into lugs. Each projection has at least one opening made for permitting receiving a fastening member. The regulator has valve provided with the seat, valve plate, valve rod connected with the plate, and valve guide member that locks the rod of the valve. The lever has the first end connected with the valve rod and second end connected with the diaphragm. The force is applied to the rod from the side of the lever in the direction virtually perpendicular to the longitudinal axis of the valve rod. The valve rod has stop member that arrests the valve rod and the plate against movement with respect to the seat of the valve.

EFFECT: enhanced reliability.

21 cl, 8 dwg

Up!