Measuring tube for gas regulator with function of pressure averaging

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

 

Claims the priority of provisional application U.S. No. 60/913,127 (filing date April 20, 2007), the entire contents of which are incorporated herein by reference.

The technical field to which the invention relates.

The present invention relates to a gas regulators and, in particular, to gas regulators, having closed system flow control.

The level of technology

The pressure under which the gas distribution system transfer gas may vary, depending on the requirements of the system, the climate, the power source and/or other factors. However, most installations the final consumer, containing gas consumers, for example, stoves, ovens, etc. require that the gas was delivered at a given pressure and at a maximum or a lower throughput of the gas regulator. Therefore, in these distribution systems, gas regulators, ensure that the supplied gas requirements installations of end-users. Traditional gas regulators include actuator closed-loop system for perception and control the pressure of gas supplied.

Figure 10 shows a conventional gas regulator 10. The controller 10 generally contains the actuator 12 and the valve 14 of the regulator. The valve of the controller with many brand is RA restricts the inlet opening 16 for receiving gas, for example, from the gas distribution system and the exhaust port 18 for supplying gas to the installation of the end user, for example, factory, restaurant, residential building, etc. having one or more consumers. The valve controller 14 further includes a valve box 36, located between the inlet and the outlet. Gas moving from the inlet 16 to the outlet 18 of the valve 14 of the regulator passes through the valve box 36.

The actuator 12 is attached to the valve 14 of the regulator to ensure compliance of the pressure at the outlet 18 of the valve 14 of the regulator, i.e. the pressure on the issue, the required pressure release or pressure in the control system. Therefore, the actuator 12 is in flow communication with the valve controller 14 through the neck 34 of the valve and the neck 20 of the actuator. The actuator 12 includes a node 22 of the regulation for regulating the pressure release valve controller 14 on the basis of perceived pressure on the issue. More specifically, the node 22 of the regulation includes a support plate 19 of the membrane, the membrane 24, the piston 32 and the adjusting lever 26, having a valve disk 28. The valve disk 28 includes a generally cylindrical body 25 and a sealing liner 29 attached to the housing 25. The membrane 24 perceives press the tion on the release valve 14 of the regulator, and depending on it moves the valve disc 28 to open and close the valve controller 14. The node 22 of the regulation further includes a regulating spring 30 which is in contact with the upper part of unit 22 of the regulation to compensate for the perceived membrane 24 pressure release. Accordingly, the desired pressure on the issue, which is also known as the pressure in the control system is set by selecting a control spring 30.

The membrane 24 is functionally connected with the regulating lever 26, and with the valve disk 28 with the piston 32 and adjusts the opening of the valve controller 14 on the basis of perceived pressure on the issue. For example, if the end-user, for example, oven, you receive a discharge in the gas distribution system after the controller 10, thus reducing the pressure on the issue. Accordingly, the membrane takes it reduced the pressure on the issue. This ensures that the tension of the regulating spring 30, and the movement of the piston 32 and the right part of the regulatory arm 26 downward in accordance with the orientation shown in figure 1. This displacement of the regulating lever 26 moves the valve disk 28 from the valve box 36 to open the valve controller 14, thereby increasing the flow rate in the production to meet the increased demand and increasing pressure to release the pressure in the control system. The user can podvoditjsya through the valve box 36 and through the outlet 18 of the valve 14 of the controller.

In a traditional regulator 10 of the regulating spring 30, by its nature, creates less effort as stretching to an uncompressed state when the displacement of the regulating lever 26 to open the valve box 36. In addition, as the tension of the regulating spring 30, the membrane 24 is deformed, which leads to an increase in the area of the membrane 24. The reduced force of the regulating spring and the increased size of the membrane 24 in this case together are the reason that when the control force provided by the regulating spring 30 becomes insufficient to compensate for the force generated by the membrane 24, which reduces pressure on the issue in the regulatory system compared to the originally-installed end user. This phenomenon is known as "failure". At occurrence of "failure" pressure release decreases below the set pressure in the regulatory system, and the controller 10 does not work properly. "Failure" is one of the examples of the negative effects of dynamic pressures that may occur in the controller 10.

To counteract these influences some traditional controllers 10 includes a tube 15 for measuring the pressure. The measuring tube 15 may include a straight measuring tube 15A, as shown by the solid line in figure 1, or may include curved the Yu measuring tube 15b, as shown by the dashed line. Both measuring tubes 15A, 15b includes an elongated cylindrical tube with an open measuring end 17A, 17b. The open end 17A, 17b is configured to measure gas pressure in the outlet valve 14 of the knob and tube 15A, 15b is arranged to transmit the measured pressure to the membrane 24. Thus, the measuring tubes 15A, 15b provide a more precise determination of the pressure at the outlet 18 of the valve 14 of the regulator than the pressure experienced by the diaphragm 24 otherwise. Without measuring tubes 15A, 15b often leads to a pressure greater than the pressure on the issue perceived by the membrane 24, due to the effects of dynamic pressure.

For example, as shown in figure 2 and 3, by passing a stream of gas from the valve box 36 and expansion, the gas is on and gets into the measuring tube 15A, 15b. There are three areas of pressure. To these three areas include the region 301 low pressure (DME), region 303 medium pressure (MDA) and region 305 high pressure (MIA).

Traditional measuring tube 15A, 15b, shown in figure 2 and 3, have open ends 17A, 17b, as described above. Open ends 17A, 17b only supply pressure of DME 301 to the membrane 24 of the actuator 12 shown in figure 1. The pressure in DME 301 decreases the PCC is razionale flow in the measuring tubes 15A, 15b. With increasing flow pressure in DME 301 begins to deviate significantly from the actual pressure on the issue, thereby leading to increasingly inaccurate determination of the pressure transmitted to the diaphragm 24 of the actuator 12. This can lead to the perception of the membrane 24, a pressure lower than the actual pressure on the issue, which may be undesirable.

As shown in figure 1, the node 22 of the regulation of traditional regulator 19 additionally serves as a safety valve. More specifically, the node 22 of the regulation also includes a safety spring 40 and the bypass valve 42. The diaphragm 24 includes an opening 44 in its Central part, and the piston 32 includes a gasket 38. Protective spring 40 is located between the piston 32 and the diaphragm 24 to move the diaphragm 24 to the sealing cuff 38 and closing the openings 44 during normal operation. If a fault occurs, such as failure of the regulating lever 26, the node 22 of the regulation is no longer associated directly with the valve disk 28, and the flow at the inlet moves the valve disk 28 in the extreme open position. This leads to the ingress of large amounts of gas in the actuator 12. Thus, as the filling of the actuator 12 by the gas pressure on the diaphragm 24 increases that you the indicates the movement of the membrane 24 of the sealing lip 38 and thereby the opening of the holes 44. As a consequence, the gas passes through the hole 33 in the membrane to the bypass valve 42. The bypass valve 42 includes a tube 46 of the valve and by-pass spring 54, shifting the valve tube 46 to the closed position, as shown in figure 1. When the pressure in the actuator 42 and the adjacent bypass valve 42 of a predetermined threshold pressure of the valve stopper 46 moves upward, compressing the bypass spring 54, and opens, thereby releasing gas into the atmosphere and reducing the pressure in the regulator 10. The measuring tube 15 may also promote the controller 10 of the safety function by filing a signal representing the actual pressure on the issue, the membrane 24 of the actuator 12. However, as indicated above, the pressure measured by conventional measuring tube 15, for example, at great expense, may be inaccurate.

Disclosure of inventions

In the present invention is proposed controller, containing the valve and the actuator. Actuator attached to the valve controller and contains a regulating element for regulating the flow of fluid through the regulator valve. The actuator further comprises a measuring tube having a function of averaging pressure, to measure the actual pressure in the exhaust hole at back the AI control valve. Average actual pressure is then transmitted to the actuator for adjusting the position of the regulating element.

In one embodiment, the measuring tube having a function of averaging pressure, includes outdoor measuring end and an elongated slot. The elongated slot may include a straight cut, wave cut, the slot having a variable thickness, or cut any other form.

In other embodiments, the size, shape, and other factors or characteristics of the slot and/or the measuring tube can be changed for specific application specific device for regulating a fluid medium.

Brief description of drawings

Figure 1 is a side cross-sectional view of a traditional controller.

Figure 2 is a schematic view of the pressure areas formed about one measuring tube, is made use of with the regulator.

Figure 3 is a schematic view of the pressure areas formed around the other measuring tube, is made use of with the regulator.

Figure 4 is a side cross-sectional view of the regulator, including the measuring tube, and the controller and the measuring tube made in accordance with one p is the iMER implementation of the present invention.

Figure 5 is a perspective view of one embodiment of a measuring part measuring tube, having a function of averaging pressure in accordance with the principles of the present invention.

Figa-6D are views of a perspective view of various alternative embodiments of the measuring parts of the measuring tubes, having a function of averaging pressure in accordance with the principles of the present invention.

Fig.7 is a side view cross-sectional view of another alternative embodiment of the present invention, including a controller and a device to control that contain a measuring tube having a function for averaging the pressure made according to the principles of the present invention.

The implementation of the invention

Figure 4 shows a gas regulator 100 includes a measuring tube 115, and the controller 100 and the measuring tube 115 is made in accordance with one embodiment of the present invention. The controller 100 gas generally contains the actuator 102 and valve 104 of the controller. The valve controller 104 includes an inlet 106 for receiving gas from the gas distribution system, and the exhaust port 108 for supplying gas to the facility having one or more p is the consumer. The actuator 102 is attached to the valve controller 104 and includes the node 122 regulation with a regulatory element 127. In the first normal mode of operation, the node 122 regulation takes the pressure at the outlet 108 of the valve 104 of the controller, i.e. the pressure on the issue, and adjusts the position of the regulating element 127 in such a way that the pressure release is approximately equal to the specified system pressure regulation. Additionally, if a fault occurs in the system controller 100 provides protection function, which in General is similar to the protection functions described above with reference to the controller 10 shown in figure 1.

The valve 104 of the controller restricts the penetration hole 110 and the neck 112 of the valve. The penetration hole 110 is located between the inlet 106 and the outlet 108. Valve box 136 is in pass-through hole 110 and limits the channel 148, having an inlet 150 and outlet 152. Gas moving from the inlet 106 to the outlet 108 of the valve controller 104 passes through the channel 148 of the valve box 136. Valve box 136 is arranged to extract from the valve 104 of the controller, so it can be replaced with another valve box having a channel of a different diameter or design for working the th feature or characteristic of the flow valve 104 of the controller for a specific application. In the described embodiment, the neck 112 of the valve restricts the hole 114 located on an axis generally perpendicular to the axis of the inlet 106 and outlet 108 of the valve 104 of the controller.

The actuator 102 includes a housing 116 and the node 122 regulation, as described above. The housing 116 includes an upper portion 116A of the housing and the lower portion 116b of the housing, connected to each other, for example, a variety of fasteners. The lower portion 116b of the housing limits governing the cavity 118 and the neck 120 of the actuator. The neck 120 of the actuator is attached to the neck 112 of the valve controller 104 to provide flow communication between the actuator 102 and the neck 104 of the controller. In the described embodiment, the controller 100 includes a clamp 111 connecting the cap 112, 120 to each other. The upper portion 116A of the housing limits the relief cavity 134 and the outlet port 156. The upper portion 116A of the housing further restricts the protruding portion 158 to accommodate the node 122 regulation, as described below.

Node 122 regulation includes the node 121 of the membrane, the node 123 of the drive and bypass valve 142. Node 121 membrane includes a support plate 109 of the membrane, the membrane 124, the piston 132 regulating spring 130, the safety spring 140, the joint socket 164 prog the us, the slot 166 of the safety spring, the slot 160 of the regulating spring and the guide piston 159.

More specifically, the membrane 124 includes a diaphragm in the form of a disk, a limiting aperture 144 in its Central part. The membrane 124 is made of a flexible, essentially airtight material, and its periphery is tightly fixed between the upper and lower portions 116A, 116b of the housing 116. Thus, the membrane 124 separates the relief cavity 134 regulatory cavity 118.

United socket 164 of the spring is located on the membrane 124 and limits the opening 170, located concentrically with the hole 144 in the membrane 124. As shown in figure 4, the joint socket 164 of the spring supports regulating spring 130 and the safety spring 140.

The piston 132 in the described embodiment, includes a generally elongated element in the form of a rod having a portion 138 of the seal, the plug 172, part 174 threaded and the guide portion 175. Part 138 sealing lip concave and generally disk-shaped and is held around the middle part of the piston 132 and is located directly under the membrane 124. Plug 172 includes a cavity configured to accommodate the connector 135, which connects the host part 123 of the disk to provide a connection node 121 of the membrane with the node 123 of the disk, as described below.

Healthy lifestyles is the one part 175 and part 174 threaded piston 132 are located in the holes 144, 170 in the membrane 124 and the joint socket 164 of the spring, respectively. Guide portion 175 of the piston 132 is slidable in a cavity in the guide 159 of the piston, which ensures axial alignment of the piston 132 relative to the rest of the node 122 regulation. Protective spring 140, the slot 166 of the safety spring and nut 176 is located on part 174 threaded piston 132. The nut holds the safety spring 140 between the joint socket 164 of the spring and the slot 166 of the safety spring. Regulating spring 130 is located at the joint socket 164 of the spring, as indicated, within the protruding part 158 of the upper portion 116A of the housing. The slot 160 of the regulating spring is screwed on the protruding portion 158 and compresses the regulating spring 130 with the joint socket 164 of the spring. In the described embodiment, the regulating spring 130 and the protective spring 140 includes a helical compression springs. Accordingly, the regulating spring 130 planted opposite the upper portion 116A of the housing and creates a force directed downwards to the United socket 164 of the spring and the diaphragm 124. Protective spring 140 is planted in front of the United socket 164 of the spring and creates a force directed upwards to the slot 166 of the safety spring which in turn is applied to the piston 132. In the described example is sushestvennee force, created by the regulating spring 130 may be adjusted by adjusting the position of the slot 160 of the regulating spring serving part 158, and hence the pressure in the system of regulation of the regulator 100 can also be adjusted.

Regulating spring 130 is compressed under the action of pressure in the control cavity 118 that is perceived by a membrane 124. Accordingly, the force generated by the regulating spring 130, sets the desired pressure release or pressure regulation system controller 100. Node 121 membrane is functionally connected to the node 123 of the disk, as indicated above, through a portion 172 of the plug piston 132 and the connector 135.

More specifically, the node 123 of the disk includes a regulating lever 126 and the guide rod 162. Regulating lever 126 includes a rod 178, the shoulder 180 and regulatory element 127. Regulatory element 127 in the described embodiment, includes a valve disc 128. Additionally, in the described embodiment, the valve disc 128 includes a sealing disk 129 for sealing the valve box 136, as shown in figure 4. The sealing disk 129 may be attached to the rest of the valve disc 128 using, for example, adhesive or other means. The sealing disk 129 may be made of the same material as the remainder of the valve disc 128, or other mater is Ala. For example, in one embodiment, the sealing disk 129 may include a polymeric sealing disk 129.

The rod 178, the shoulder 180 and the valve disc 128 is made separately and assembled for the formation of the regulating lever 126. More specifically, the rod 178 is a generally straight rod having a protrusion a and deepening 178b, which in the described embodiment, generally rectangular. The shoulder 180 is a slightly curved stem and includes the end of 180 with the fulcrum and the free end 180b. The end of 180 with the fulcrum includes an opening 184 in which is placed a finger 186 mounted on the lower portion 116b of the housing. The end of 180 with the fulcrum also includes a fist 187 having an elliptical cross-section and located in the recess 178b rod 178. The free end 180b placed between the upper part a and finger 135b connector 135, which is attached to the plug 172 of the piston 132. Thus, the connector 135 functionally connects the node 123 of the disk node 121 of the membrane.

Guide rod 162 includes a generally cylindrical outer portion a generally cylindrical inner portion 162b and many jumpers s connecting the inner and outer part 162b, a. The outer part a guide rod 162 is made with the possibility of accommodation in the openings 112, 120 of the valve 104 controller 104 and the lower portion 116b of the body, according to the government. The inner portion 162b is arranged to hold the rod 178 regulating lever 126 slidable. Thus, the guide rod 162 is used to ensure alignment of the valve 104 of the controller, the housing 116 of the actuator, node 122 regulation and, more specifically, rod 178 of the adjusting lever 126 node 122 regulation.

Figure 4 shows the braking element 127 is in the closed position in which the valve disc 128 is tightly in contact with the outlet valve 152 of the window 136. When the gas does not pass through the valve box 136 and the valve controller 104 is closed. This position is provided when the pressure on the release, which corresponds to the pressure in the control cavity 118 of the housing 116 and is perceived by the membrane 124 exceeds the force generated by the regulating spring 130. Accordingly, the pressure release moves the membrane 124 and the piston 132 in the closed position.

However, when the flow in the gas distribution system, for example, the beginning of the consumer, for example, ovens, stoves, etc., the consumer consumes the gas regulating cavity 118 of the controller 100, thereby reducing the pressure perceived by the membrane 124. With decreasing pressure, perceived membrane 124, there is inequality efforts of the regulating spring and the greater the I, created by pressure release and applied to the membrane 124, so that the control spring 130 is stretched and displaces the membrane 124 and the piston 132 downward relative to the housing 116. This causes rotation of the shoulder 180 clockwise around the finger 186, which in turn rotates the fist 187 on deepening 178b in the rod 178. In this case the rod 178 and the valve disc 128 is moved from the exhaust holes 152 of the valve box 136, opening the valve 104 of the controller.

When this gas distribution system delivers gas to the subsequent consumer through the valve 104 of the regulator when the pressure in the regulatory system established by the regulating spring 130. Additionally, the node 121 membrane continues to perceive the pressure release valve controller 104. Until the pressure on the issue remains approximately equal to the pressure in the control system, the node 122 regulation supports the valve disc 128 in the same position. However, if the flow rate on the issue, that is, consumption is reduced, thereby increasing the pressure on the release overpressure in the regulatory system established by the regulating spring 130, the membrane 124 perceives increased pressure on the issue and moves up, compressing the regulating spring 130. In another case, if the flow rate on the issue, that is, the consumption increases, thereby reducing the pressure on the issue is ke below the pressure in the control system, the membrane 124 perceives reduced pressure on the issue, and the spring 130 moves the diaphragm 124 and the piston 132 downward, opening the valve 104 of the controller. Thus, the node 122 regulation responds to a small deviation from the pressure release or pressure in the control system and adjusts the position of the valve disc 128.

As tension control spring 130, the displacement of the valve disk 127 and opening valve box 136 force created by the spring, and the surface of the diaphragm 124 is reduced. As described above with reference to conventional regulator 10 shown in figure 1, the reduction of a spring force and reduction of the area of the membrane can reduce the pressure on the release required for equilibration of the membrane 124 and perceived her. Thus, it reduces the pressure on the release below the pressure in the control system, and increasing consumption, the deviation increases. As mentioned above, this phenomenon is known as "failure". One traditional solution for dealing with "failure" is installed in the regulator of one of the measuring tubes 15A, 15b described above with reference to figure 1. However, as described, the traditional measuring tubes 15A, 15b have disadvantages, namely, that these tubes do not always accurately determine the pressure due to the dynamic phenomena of the flow is OCHA environment, passing through the regulator valve, and, in particular, the presence of changing pressures in DME 301 adjacent to the measuring ends 17A, 17b.

Accordingly, the regulator, shown in figure 4, has a measuring tube 115, made with the possibility of averaging the pressure measured at the outlet 108 of the valve 104 of the controller. This averaging allows the measuring tube 115 to convey a more accurate pressure signal in the control cavity 118 of the actuator and, in particular, to the membrane 124. The measuring tube 115, shown in figure 4, is generally similar to the measuring tube 15A, shown in figure 1, that includes a cylindrical tube having a measuring portion 117 and the mounting portion 119, and the measuring portion 117 includes an outdoor measuring end 117a. The mounting portion 119 is located at an angle relative to the measuring portion 117. Additionally, the measuring portion 117 measuring tube 115 in the example implementation shown in figure 4, includes an elongated slot 131, which is better shown in figure 5. The slot 131 in the embodiment shown in figure 5, includes a rectilinear slot passing from the measuring end 117a of the measuring portion 117 essentially to the fixing part 119.

As shown in figure 4, the mounting portion 119 in the described embodiment, is located in the guide 162 degree the life of the node 123 of the drive of the actuator 102. More specifically, the mounting portion 119 is installed between a pair of radial bridges 162 with the guide rod 162. In one embodiment, the mounting portion 119 can be secured between the radial crosspieces guide 162 162 of the rod using the fit interference fit, adhesive, spline or other means. While measuring portion 117 measuring tube 115 is located near the outlet 108 of the valve 104 of the controller. Thus, as shown in figure 4, the slot 131 in the measuring portion 117 measuring tube 115 is directed from the valve box 136, for example, in the direction of flow from the valve box 136. In other words, the slot 131 is in the message, for example, by region 303 medium pressure (MDA), shown in figure 2. Additionally, the measuring end 117a is in the message, for example, the region 301 low pressure (DME), shown in figure 2. Therefore, the measuring tube 115 having a function of averaging of the pressure not only can measure pressure in DME 301 with the aid of the measuring end 117a, but also can measure the pressure in the OSD 303 in many points along the slot 131. For example, to explain the slot 131 restricts the set of points a pressure measurement along the measuring tube 115 having a function for averaging the pressure, as shown in figure 5. Although n is then, what figure 5 shows only five such points a pressure measurement, the specialist in the art will understand that the number of points a pressure measurement along the slot 131 in essence can be infinite.

Thus, the measuring tube 115 having a function for averaging the pressure, in the present exemplary embodiment of the present invention transmits the pressure of the DME 301 and the OSD 303, shown in figure 2, thereby providing the average pressure in the outlet 108 of the actuator 102. This averaging compensates the decrease in pressure in DME 301, which occurs due to the increased flow through the valve 104 of the controller. Therefore, the pressure transmitted to the actuator 102 of the measuring tube 115 having a function for averaging the pressure more accurately corresponds to the actual pressure at the outlet. Another advantage of the measuring tube 115 having a function for averaging the pressure is the fact that with further increases in flow through the valve 104 of the controller, the measurement accuracy of the pressure measuring tube 115 having a function for averaging the pressure, in comparison with conventional measuring tubes 15A, 15b increases more and more.

Although described measuring tube 115 having a function of averaging pressure, includes a cylindrical measuring the cutting 115, having generally rectilinear slot 131, for example, as shown in figure 5, alternative embodiments may include alternative geometric shape. For example, on figa-6D shows an alternative measuring tube 115a-115d, having the function of averaging the pressure, made in accordance with the principles of the present invention. Each of the measuring tubes a-115c shown in figa-6C, includes a wavy slot a passing from the respective measuring ends 117a measuring parts 117. On the contrary, the measuring tube 115d shown in fig.6D includes a slot 131b having a variable width W. In the described embodiment, the width W of the slot 131b shown in Fig.6, is changed from the minimum value W1 to the maximum value of W2 in such a way that the dependence of the width W to the length of the measuring tube 115d may be similar, for example, a sine curve.

The present invention is not limited to a cylindrical measuring tube. For example, the measuring tube 115b shown in figv, includes a generally triangular cross-section. In addition, the measuring tube 115c shown in figs, includes a generally rectangular and at least in one embodiment, a square cross-section. The present invention may include izmeritelnaya in General, any cross-section.

Accordingly, it should be understood that the present invention is not limited to the examples described here implement the measuring tube 115 having a function of averaging pressure, and many alternative forms of the measuring tubes and slits can be made with the possibility of using the principles of the present invention and therefore is considered relevant to the scope of the present invention. In another alternative embodiment, the measuring tube 115 having a function for averaging the pressure may not include the slot completely, and include a number of separate holes located at a distance from each other along the measuring portion 117 measuring tube 115 in places where otherwise be positioned slot 131.

Moreover, it is clear that the particular form of the measuring tube 115 having a function for averaging the pressure in accordance with the present invention and having a definite cross-sectional shape, the shape and the width of the slot 131 may be changed under any requirements of the regulator. For example, it may be useful to execute or select measuring tube 115 having a specific cross-section and shape of the slits and/or size for optimum performance with any set of parameter controller, for example, bandwidth, pressure is receiving in the outlet the size of the Governor valve size valve boxes, etc.

In addition, although described here, the measuring tube 115 having a function of averaging pressure, includes a slot 131, located only in the measuring portion 117, alternative embodiments may include a slot 131, also passing through the fixing part 119. Additionally, although described measuring tube 115 having a function for averaging the pressure, similar to the straight measuring tube 115, shown in figure 2, the measuring tube 115 of the present invention may, for example, also be designed as a curved measuring tube similar to the tube shown in figure 3. When this curved measuring tube made in accordance with the principles of the present invention, may include a slot passing from the measuring end of the measuring tube and/or through the mounting part. In an alternative embodiment, the curved measuring tube, having a function of averaging pressure, may not include a slot in the curved part located in close proximity to the open measuring end, and to enable the slot only in part, in the message area 303 medium pressure, for example, shown in figure 3.

Thus, in accordance with the above nastoyascheevremya offers measuring tube 115, having the function of averaging the pressure made with the possibility of more accurate measurement of the pressure in the outlet 108 of the valve 104 of the controller. This contributes both to offset the negative impacts of "failure", and more accurate work in case of failure.

For example, as described above, the controller 100, made in accordance with the present invention also provides a safety feature in case of failure of any element node 122 regulation. In this case, the valve disc 128 is moved to fully open position, allowing the passage of gas in the control cavity 118 of the actuator 102. This ensures the substantive equality of the measured membrane 124 pressure to the pressure release valve 104. However, when using the measuring tube 115 having a function for averaging the pressure exact pressure signal can be transmitted to the membrane 124 faster than before. This pressure moves the piston 132 and the gasket 138 at the lower end position, so that the controller 100 may provide relief of pressure in the outlet 108 of the valve hole 104 of the controller in accordance with the design of the bypass valve 142.

For example, if you increase the pressure in the control cavity 118 over pressure relief set pressure relief spring 140, giving the group moves the membrane 124 and the joint socket 164 spring up, thereby squeezing the safety spring 140 slot 166 of the safety spring. This in turn causes the output of the membrane 124 from contact with the sealing lip 138 of the piston and provides the passage of gas through the holes 144, 170 and safety in the cavity 134 over the membrane 124. As far as filling the relief cavity 134 gas pressure in it increases.

With increasing pressure in the pressure-relief cavity 134 over the set pressure release valve 142 opens and releases the gas through the exhaust port 156 into the atmosphere, like a conventional regulator 10 shown in figure 1. More specifically, the bypass valve 142 includes a valve tube 146 and the bypass spring 154, as shown in figure 4. The bypass valve 142 is located in the upper portion 116A of the housing 116 adjacent to the outlet box 156. More specifically, the outlet box 156 includes an L-shaped cavity containing the vertical part a and a horizontal portion 156b. The vertical part a is in flow communication with the relief cavity 134. The horizontal portion 156b is open to the atmosphere. The vertical part a contains the bypass valve 142 and limits the surface 198 of the saddle. The bypass spring 154 moves the valve tube 146 to the surface 198 of the saddle outlet ports 156 in the closed position.

Thus, in accordance with fuseiso the military clear what the present invention provides a primary tool to provide more accurate and rapid transmission of the pressure signal to the actuator. This is mainly compensates and/or prevents the effects of "failure", and also increases the efficiency of the regulator. However, as described here, the controller 100 is only an example of the device for controlling a fluid medium, comprising the principles of the present invention. Other devices for regulating the fluid, including other regulators or control valves may also be used, devices and/or advantages of the present invention.

For example, figure 7 shows a portion of the distribution system of a fluid medium, comprising a controller 100, for example, described above, and the device 200 to control. The device 200 for controlling is configured to provide redundancy to close the valve 104 of the regulator under certain conditions, when the controller 100 cannot close the valve 104 of the controller. Like the membrane 124 of the controller 100, the device 200 for controlling includes a membrane 224 for the perception of pressure release valve controller 104. On the basis of the averaged pressure release device 200 to control adjusts the position of the regulating element 227. In General, the device 200 for controlling is arranged to close Regulus is the dominant element 227 and thereby stop fluid flow through the valve 104 of the regulator when the pressure release, excess pressure on the issue, at which the controller 100 closes the valve 104 of the controller.

However, in the example implementation described in Fig.7, the controller 100 includes a measuring tube 115 having a function for averaging the pressure, and the device 200 for monitoring includes measuring tube 215, having a function of averaging pressure. While measuring tube 115, 215 determine the average pressure in the outlet 108 of the valve 104 controller like measuring tubes 115, described above. Measuring tube 115, 215 may include any of the measuring tubes 115, described above, or may include any alternative measuring tube made in accordance with the principles of the present invention.

1. A device for controlling fluid containing:
valve having inlet, outlet and valve box located between the inlet and the outlet to ensure the passage of fluid through the valve;
an actuator attached to the valve and containing a control unit, which includes a regulatory element and the membrane, functionally connected with the regulating element and the regulating element is in the valve and configured to shift relative to the valve open for flow control tech is whose environment between the inlet and the outlet;
the measuring tube containing the measuring part and the fastening part and the measuring part has an open end positioned near the outlet of the valve and the retaining part is located near the membrane of the actuator; and
the slot made in the measuring part of the measuring tube and passing from the specified open end to the mounting part so that the measuring part can average the pressure at the outlet of the valve and the measuring tube passes the average pressure to the membrane.

2. The device according to claim 1, characterized in that the slot in the measuring part of the measuring tube is directed away from the valve open valve.

3. The device according to claim 1, characterized in that the slot in the measuring part of the measuring tube includes a straight slot, and/or wavy cut and/or slit having a variable width.

4. The device according to claim 1, characterized in that the measuring part of the measuring tube has a round cross section or rectangular cross section or a triangular cross-section.

5. The device according to claim 1, characterized in that the measuring part of the measuring tube includes a straight measuring tube or a curved measuring tube.

6. The device according to claim 1, characterized in that the additional is but contains a device for control, attached to the valve on the side opposite the actuator, and a device for controlling includes a second regulating element, passing into the valve and configured to shift relative to the valve open; a second membrane, functionally connected with the second regulating element; and a second measuring tube containing the measuring part and the fastening part and the measuring part is located near the outlet of the valve and the retaining part is located near the second membrane, while the measuring part has an open end and a slot passing from this open end to the mounting part so that the second measuring tube can average pressure in the exhaust the valve bore and to transmit the averaged pressure to the second membrane.

7. A device for controlling fluid containing:
valve having inlet, outlet and valve box located between the inlet and the outlet to ensure the passage of fluid through the valve;
an actuator attached to the valve and containing a control unit for regulating the fluid flow between the inlet and the outlet, and the control unit contains a regulatory element and IU is the bran, functionally connected with the regulating element and the control element passes into the valve and configured to shift relative to the valve open;
the measuring tube containing the measuring part and the fastening part and the measuring part is measuring the end near the outlet of the valve and the retaining part is located near the membrane; and
many measurement points that are limited to a few holes and spaced from each other along the measuring part between the measuring end and the mounting part, and the measuring end and a few holes that restrict the set of points of measurements made with the possibility of joint averaging the pressure in the outlet valve so that the measuring tube transmits the averaged pressure to the membrane.

8. The device according to claim 7, characterized in that the measuring tube has a round cross section or rectangular cross section or a triangular cross-section.

9. The device according to claim 7, characterized in that the measuring part of the measuring tube includes a straight measuring tube or a curved measuring tube.

10. The device according to claim 7, characterized in that it further comprises a device for controlling attached to the valve-side, across the lagoon to the false actuator, moreover, the device for controlling includes a second regulating element, passing into the valve and configured to shift relative to the valve open; a second membrane, functionally connected with the second regulating element; and a second measuring tube containing the measuring part and the fastening part and the measuring part is located near the outlet of the valve and the retaining part is located near the second membrane, while the measuring part has an open end and a slot passing from this open end to the mounting part so that the measuring part can average the pressure at the outlet of the valve, and the second measuring tube passes the average pressure to the second membrane.

11. The measuring tube with the function of averaging the pressure used with a device for regulating a fluid medium having inlet, outlet, valve box, located between the inlet and outlet openings, and a control unit, configured to shift relative to the valve box based on the signal generated by the specified measuring tube, thereby providing regulation of the fluid flow between the inlet and the outlet, with the specified measuring Proc. of the BKA contains:
the measuring part having an open end which has a capability location near the outlet of the device for controlling the fluid;
the fastening part located at an angle relative to the measuring part and configured to locations near the site control device for controlling the fluid; and
the slot made in the measurement part and passing from the specified open end to the mounting part so that when you install the specified measuring tube in the device for regulating the fluid measuring portion can average the pressure at the outlet, and the said measuring tube passes the average pressure in the control unit.

12. The device according to claim 11, characterized in that the slot in the measuring tube is made in a direction from the valve box of the device for controlling a fluid medium.

13. The device according to claim 11, characterized in that the slot contains a rectangular slot, and/or wavy cut and/or slit having a variable width.

14. The device according to claim 11, characterized in that the measuring part has a round cross section or rectangular cross section or a triangular cross-section.

15. The device according to claim 11, characterized in that the measuring part which contains a straight measuring tube or a curved measuring tube.



 

Same patents:

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: machine building.

SUBSTANCE: proposed device comprises valve body defining valve inlet and outlet, valve opening made between said inlet and outlet, valve disc arranged in vale body to displace between open position and closed position for control over fluid flow through valve body. Note here that valve disc has sealing surface to get in contact with valve opening when disc is closed. Besides, it comprises cylindrical element articulated with valve disc edges to extend above said sealing surface to direct fluid flow from valve opening to valve outlet.

EFFECT: reduced pressure drop.

23 cl, 7 dwg

FIELD: machine building.

SUBSTANCE: proposed device comprises assembly with control component and diaphragm coupled with control component. The latter control fluid flow through device, relief valve coupled with control assembly, drive case accommodating, at least, control assembly parts. Note here that drive case has top and bottom part. Every said part comprises flange adjoining diaphragm edges. Drive case has also fasteners to joint said parts together, outlet channel defined by case top section and comprising relief valve. Note here that outlet channel has connection section arranged, at least, partially above case top flange upper surface, and thrust surface defined by case top flange upper surface. Note here also that said thrust surface represents solid annular surface that allows free access to aforesaid fasteners.

EFFECT: ease of use.

15 cl, 4 dwg

FIELD: machine building.

SUBSTANCE: proposed device comprises valve with inlet and outlet, and opening arranged between said inlet and outlet, and actuator. The latter is coupled with valve and comprises valve plate arranged in vale to displace between closed position, operating position, and safety position. Besides, device comprises cartridge arranged in valve and provided with cylindrical first part adjoining opening, second cylindrical part adjoining actuator, and part with channel arranged between first part and valve outlet. Note here that cartridge first part features inner size that allows receiving, at least, part of valve plate when the latter stays in operating position so that valve plate and cartridge allows fluid to flow from opening into outlet and from actuator.

EFFECT: higher efficiency.

25 cl, 7 dwg

FIELD: power industry.

SUBSTANCE: gas pressure control includes the main housing (2) with the first pipe (4) and the second pipe (6), calibrated gas passage (8), gate (9), noise-reducing element (102) and axisymmetrical housing (7). Gate (9) is located at least partially in the main housing (2) and has the possibility of being moved for adjustment of hole of calibrated gas passage (8) between extreme open and closed positions. When the gate is located in extreme closed position, it interacts with the corresponding installation groove (101). Noise-reducing element (102) is located in calibrated passage (8), intended for reduction of noise created inside pressure control, and essentially contains cylindrical wall (103) having gas passage holes (104). Axisymmetrical housing (7) is intended for arrangement of noise-reducing element (102) and located in passage (8). Installation groove (101) is made as an integral part of axisymmetrical housing (7). Noise-reducing element (102) is inserted into axisymmetrical housing (7) when it is in elastic deformed state and applies the appropriate elastic force mainly in radial direction to inner surface of cylindrical wall of axisymmetrical housing (7).

EFFECT: simplifying removal of noise-reducing elements of control at their wear and tear.

10 cl, 7 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

FIELD: engineering industry; regulator engineering.

SUBSTANCE: regulator of gas pressure contains valve located on a rod, saddle, central hole, feeler connected by means of lever transmission with a rod. In the valve and in rod channel for a gas supply in a compensating cavity is executed. This cavity is organised by protective and compensating membranes. Regulator has located in a peripheral edge part of the valve the channel for an inlet (input) of gas. Central face part of the valve from periphery has an overlapping element, forming under itself a cavity for a gas course.

EFFECT: productivity gain of the device due to rising of its throughput.

3 cl, 1 dwg

FIELD: heating.

SUBSTANCE: valve unit (1) includes housing with inlet (2) and outlet (3), valve 1 (6) with seat (8) and gate (7) and valve 2 (10) providing stable pressure drop at valve 1 (6). Valve 1 (6) is located in the first part of unit body (A) whereas valve 2 (10) is situated in the second part (B) of unit body. Besides, first part (A) and second part (B) of unit body are interconnected. Pressure transfer channel (28) from outlet (3) to membrane side (24), which is opposite to valve 1 (6) crosses parting surface (C) between the first (A) and second (B) parts of unit body.

EFFECT: simplification of valve unit design.

10 cl, 2 dwg

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