The pressure regulator
(57) Abstract:The invention relates to an automatic gas pressure regulator and can be used in pneumatic systems that are required to automatically maintain a constant flow rate of the working fluid when the input pressure. The aim of the invention is to improve the accuracy, simplification and extension of the control range. The aim is achieved in that the flow regulator, comprising a housing with inlet and outlet nozzles installed inside between elastic tubular shutter forming with the walls of the casing controlling the camera, and the control device, the latter is in the form of a hollow piston defining a core hole, which regulates the inflow of air into the control chamber, located in a closed piston chamber having input channels and output regulating air flow channel for supplying air to a set pressure and a channel for supplying a regulated flow. 1 Il. The invention relates to an automatic gas pressure regulator and can be used in pneumatic systems that are required to automatically maintain a constant flow rate of the working fluid, changing whine regulatory body under the action of the pressure regulating flow .The disadvantage of this controller is the inability remote control the flow of the working fluid.Closest to the proposed technical essence is a pressure regulator comprising a housing with inlet and outlet nozzles and installed inside between elastic tubular shutter forming with the walls of the casing controlling the camera, and control device .The disadvantages of the known regulator are low sensitivity and the difficulty settings of the controller.The aim of the invention is to improve the accuracy, simplification and extension of the control range.The aim is achieved in that the pressure regulator comprising a housing with inlet and outlet nozzles installed inside between elastic tubular shutter forming with the walls of the casing controlling the camera, and the control device, the latter is in the form of a hollow piston defining a hole, placed in a closed piston chamber to form with the housing first and second end cavities connected respectively with a source of predetermined pressure and the outlet pipe, and a closed piston chamber is connected with channels C specifies the hollow hole of the piston.The pressure regulator shown in the drawing.The regulator includes a housing 1 with an inlet 2 and outlet 3 nozzles and installed inside between elastic tubular shutter 4, the control chamber 5, the control device is in the form of a closed piston chamber 6, which is hollow piston 7 having sets (ellipsometry) hole 8, channel 9 for supplying the piston of air with a given pressure, the channel 10 for supplying the piston controlled environment, the channel 11 for supplying to the control chamber of the control air flow and channel 12 for the discharge of air from the control chamber to the atmosphere.The controller operates as follows.On the channel 9 to the piston with one hand, air is supplied to a set pressure Passequal to the pressure Ppadjustable thread:
Pass.= Pp.On the other side of the piston through the channel 10 is supplied adjustable medium pressure Pwith. In case of equality of pressure Pass.and RS.the piston is in the position in which the hole in the piston is located between the channels 11 and 12. In this position, both channels are blocked by the piston. With increasing pressure Pwiththe piston is displaced to the left, opening the channel 11. The air hepatica, reducing the flow area up until equal pressure Pwithand Rass. The piston takes a position closing the channel 11. In the case of decreasing pressure Pwiththe piston moves to the right, opening the channel 12, and the air begins to come out from the control chamber to the atmosphere, the flow area starts to increase up until the pressure Pwithand Rass.equal.The use of a hollow cylindrical piston with the master core hole, regulating the air supply to the control chamber, which is influenced by the set pressure with one hand and pressure controlled environment on the other hand, allows to increase the sensitivity of the regulator by changing the position of the piston due to the pressure difference acting on the piston, having the same size on both ends, you can replace the piston with the other hole. Use as a reference air pressure simplifies the configuration of the controller due to the fact that the setting is to supply air under pressure Passequal to the pressure regulated flow at normal flow of regulated flow. A PRESSURE REGULATOR comprising a housing with inlet and outlet Patra in the work chamber, and control device, characterized in that, to improve accuracy, simplification and extension of the control range, the control device is designed as a hollow piston defining a hole, placed in a closed piston chamber to form with the housing first and second end cavities connected respectively with a source of predetermined pressure and the outlet pipe, and a closed piston chamber is connected with the channel inlet and outlet of the control flow into the control chamber arranged with the possibility of switching through the setting hole of the hollow piston.
FIELD: hydraulic and pneumatic automatics, namely regulation of pressure of natural gas at outlet of gas distributing stations.
SUBSTANCE: regulator includes outer cylindrical housing, swirling chamber coaxial to said housing, designed for energy separation and having annular duct for drawing off hot flow and unit for controlling cross section of tangential nozzle inlet of compressed air in chamber. Said unit is arranged between diaphragm and swirling chamber. Recovering swirl ejector is arranged directly behind diaphragm in cold end part of chamber. Controlling unit, namely valve unit is in the form of hollow cylinder moved in lengthwise direction by means of rod of servo drive. At side of diaphragm cylinder engages with outlet cross section of nozzle inlet through lengthwise tangential ducts in wall of inlet collector embracing outer wall of said valve. Outlet of duct for drawing off hot flow to side of cold end of chamber and to side of housing of nozzle inlet is connected with collector for supplying hot flow to ejector. The last is in the form of tangential ducts in lateral wall of duct for drawing off cold flow. Behind mixing passage of ejector and lateral branch of mixed flow said servo drive of regulator is arranged.
EFFECT: enhanced operational reliability, enlarged functional possibilities of one-aggregate gas pressure regulator, improved accuracy of regulation due to effective self-heating and dynamic balance of shut-off pair.
3 cl, 3 dwg
FIELD: hydraulic and pneumatic engineering.
SUBSTANCE: device has body with coaxially placed two serially opened locking organs. Coaxially to body guiding cylinder perforated with through apertures is fixed to first locking organ, placed with possible displacement relatively to guiding cylinder and interaction with saddle and stationary support. Second locking organ is made in form of decreased cope of the first one, provided with guiding cylinder, fixed to analogical cylinder of first locking organ on the side of flow output. First locking organ is made in form of hollow barrel moved along outer surface of guiding cylinder with unloading apertures in its bottom. Hollow barrel I loaded with back action spring. The latter is placed between its bottom and body. Second locking organ is loaded with back action spring, placed between its bottom and bottom of first locking organ. Saddle for first locking organ is placed on the side of flow output. Bottom of second locking organ is placed on the side of flow output. Bottom of first locking organ is connected to servo through rod. On each saddle of guiding cylinders of locking organs on the side of flow outputs protective element is placed. Protective element is in contact with front edge of barrel and is made in form of for example moveable ring spring-loaded relatively to saddle. This ring envelopes saddle and covers stationary compaction of locking couple in its open position on the side of the flow. Ring is provided with unloading apertures and limiter of movement in form of for example removable brackets. Brackets are evenly placed along circle in amount no less than three and fixed at the end of saddle. Servo is made in form of pneumatic cylinder adjuster coaxial to the body. Said cylinder is mounted outside gas flow and contains moving piston. Piston separates hollows of controlling and output pressures. In hollow of said pressure said rod connected to piston is placed. On the opposite side piston is supported by pusher. Pusher is mounted coaxially with its possible contact to sensor of position of locking organs ad coaxial to pusher of limiter of their movement, moved manually or automatically.
EFFECT: higher durability, broader functional capabilities.
FIELD: gas industry.
SUBSTANCE: device has controlling electromagnetic valve with inlet saddle, connected to gas-feeding channel, adjusting organ, driven by electric magnet, and outlet saddle, low pressure hollow with branch channel and separated from it by fixed saddle and cutting latch high pressure hollow, cylindrical chamber with moving element, interacting through pusher with cutting latch and forming in chamber on the side of pusher a working hollow, connected to controlling valve hollow, and on the opposite side an auxiliary hollow connected to atmosphere with mechanical spring positioned on it and adjusting element for given low pressure. Outlet saddle of controlling valve is connected via channel to low pressure hollow. Pusher is made in end, which kinematically interacts with cutting latch of moving saddle, connected by auxiliary hollow through aperture in moving element and pusher.
EFFECT: higher efficiency.
2 cl, 2 dwg
SUBSTANCE: device has outer cylindrical body, vortex chamber coaxial to the latter for energy separation with circular channel for intake of hot flow and assembly for adjusting cross-section of tangential nozzle intake of compressed gas into chamber, positioned between diaphragm and chamber, and also utilizing ejector, while adjusting assembly, valve in particular, is made in form of diaphragm body moved in longitudinal fashion by servo rod, and interacting with outlet cross-section of nozzle intake via longitudinal tangential channels on the wall of cold end of vortex chamber, enveloping outer wall of valve, while channel for intake of hot flow to cold end of chamber by its outlet is connected to inlet of hot flow into ejector, while outer cylindrical body with side inlet of compressed gas and shut on the side of outlet of servo rod and hot end of vortex chamber has a spin diffuser directed along hot flow, with turbulence promoter, intermediate wall, held in flange groove of outer body, and also - outlet extending wall in such a way, that in ring-shaped area, forming an inlet collector across from side inlet of compressed gas, coaxially to outer body ejector pipes rigidly connected to walls are positioned with nozzles for outlet of hot flow in parallel to output of cold flow from diaphragm. Rod, mounted strictly along axis of vortex chamber, on the side of output of cold flow by ball support is connected to intersection of body of diaphragm and valve.
EFFECT: higher reliability, higher durability, higher efficiency.
4 cl, 1 dwg
FIELD: fluid-pressure automatics.
SUBSTANCE: device comprises tubular housing and spring-loaded self-centering sensor made of a truncated cone. The sensor and housing define a ring slot that converges in the direction of flow. The baffle inside the housing has throttling slot. The pipe is connected to the sensor at its center. A part of the pipe is made for permitting cooperation with the relief space downstream of the throttling slot. The inlet space of the housing is connected with the space upstream of the throttling slot through the by-pass that receives the throttling device made of a nozzle to define varying throttling cross-section.
EFFECT: enhanced precision.
1 cl, 1 dwg
SUBSTANCE: reduction valve comprises housing that is provided with supplying, discharging, and draining passages. The cylindrical slide valve is mounted with a spaced relation to the spring-loaded pusher inside the bore made in the housing to form a face control chamber from the side opposite to the pusher. The chamber is in communication with the draining passage through the longitudinal passage made in the slide valve. The draining passage is connected with the space that is defined by two slide valve collars. The first collar separates the space from the discharging chamber, and the second one separates it from the control chamber and forms the throttling slot between the supplying and discharging passages. The first collar of the slide valve is mounted with a diametrical space of 1.3-1.8 of the diametrical space of the second collar. The first collar is provided with the ring groove that divides it into two cylindrical parts. One of the parts is located from the side of the pusher and is provided with flats uniformly arranged over the periphery.
EFFECT: expanded functional capabilities.
3 cl, 4 dwg
FIELD: valving systems.
SUBSTANCE: hydraulic throttle valve comprises housing with inlet and outlet openings and spring-loaded slide valve. The slide valve is mounted for permitting reciprocation between the space in the zone of the outlet opening and damping dummy space that are coaxial to it and receives the spring-loaded member. The axes of the outlet and inlet openings intersect. The outlet opening is made at a distance from the inlet opening, and it is overlapped by the side of the slide valve in the throttling interval. The housing of the valve and slide valve has passages that connect the dummy space with the space in the zone of the inlet opening or the space in the zone of the ring groove.
EFFECT: enhanced precision of control.
SUBSTANCE: invention is used, primarily, as cold and hot water pressure stabiliser the dwelling house compartment water supply inlets. The device housing incorporates a pressure regulator with a stem with a gate. There is a seal between the gate and the casing, while between the gate and seat arranged in the regulator control space, clearance is formed. The said control space accommodates a spring-loaded diaphragm. The casing inlet branch pipe communicates, via the manifold, filter element and the clearance between the seat and gate, with the manifold outlet space which, in its turn, communicates with the casing outlet branch pipe. The regulator stem is fitted in the outlet space communicating with the control space. The invention allows increasing pressure regulation accuracy thanks to reducing friction of the regulator sealing elements and increasing its operating speed.
EFFECT: higher accuracy and operating speed.
2 cl, 1 dwg
FIELD: machine building.
SUBSTANCE: proposed invention can be used for control purposes in oil refining, chemical processing installations, foodstuffs processing units or similar. Essence of the invention consists in the valve system containing the mechanism moving the valve to its safety position. The system incorporates the valve actuator wherein a fluid medium is forced by the aforesaid controller comprising the pressure relief reversing valve. Note that if pressure in the valve actuator should be reduced for the valve to move into its safety position, the aforesaid reversing valve opens to form a channel to instantaneously drop excess pressure at the controller outlet.
EFFECT: control over pressure and fluid medium flow rate.
22 cl, 3 dwg
FIELD: machine building.
SUBSTANCE: invention relates to gas industry and can be used in gas transportation and use. The proposed two-stage gas pressure reducer is made up of body 1, cover 2 with inlet union 3 and two stage of pressure reduction. Note that the first stage consists of valve 10, first sensitive element with first piston 4 with a con-rod and axial channel 5 arranged therein, axial spring 6 and the following spaces, i.e. first outlet space7, under-piston space 8 and above-piston space 9. The second stage consists of the second sensitive element with second piston 11, screw 12 and pressure setting spring 13, second valve 14 with seat 15 and the following spaces, i.e. second outlet space 16 and pressure setting space 17. Note also that the first stage under-piston space 8 communicates via channel 18 with the second stage second outlet space 16. Note also that filter 19 representing a set of screens is arranged between body 1 and cover 2 with inlet union 3. Second valve 14 represents a ball with push rod 20, its second end being provided with thrust washer 21 with spring 22. The said ball surface 23 is in a point contact second piston 11.
EFFECT: higher reliability.