Bypass valve with control unit

FIELD: mechanical engineering; valves and fittings.

SUBSTANCE: proposed bypass valve is furnished with control unit which accommodates distributing three-way valve with electromagnet drive, control unit with spring-loaded piston and bypass valve checking prohibit unit with control piston. Outlet space in housing of bypass valve is connected by pneumatic line with underpiston space of control unit with spring-loaded piston. Overpiston space of control unit is connected by pneumatic lines with first output of distributing three-way valve and, through adjustable restrictor, with vent pipe. Second output of distributing three-way valve is connected by pneumatic line with underpiston space of bypass valve inner housing. Input of distributing three-way valve is connected by pneumatic line with output of checking prohibit unit.

EFFECT: improved reliability of systems of compressor pipe fittings.

1 dwg

 

The present invention relates to the field of valve industry, particularly to valves for bypass gas transmission pipelines.

Known ball valves with tube in the form of a ball with a through hole for passage of the medium and the sealing rings with pneudraulic that opens valves 30...120 s (see, for example, Dragojevic, Ongaku "Handbook of design for pipeline valves". L.: "engineering", LO, 1987, p.79...81).

Known check valve, comprising a housing with inlet and outlet nozzles, saddle and locking the body in the form of a rolling disk with the guide ring (see, for example, ABT. St. SU 356409 A, IPC F 16 To 15/02, publ. 23.10.72 year).

Known annular valve shutter in the form of a cylinder (piston), overlying the housing seat and shut off when this annular flow part of the housing, with a drive mechanism inside the housing in a sealed cavity, operated manually or electrically, or piston pneumatic or hydraulic drive, placed outside the valve body or inside it (see, for example, Dragojevic, Ongaku "Handbook of design for pipeline valves". L.: "engineering", LO, 1987, p.97...106) prototype.

The task of the invention is to improve the reliability of systems crane studs compressors (e.g., blowers natural ha is and main gas pipelines), in particular, by increasing the reliability used in these systems (high pressure gas) pressure relief valves.

This technical result is achieved in that the bypass valve to the control unit with input and output cavities and nozzles, defined therein a saddle and an inner housing with a spring-loaded locking piston and podpornoy cavity, with position sensor shut-off piston with a control unit, mains gas high and low pressure and pilot gas and automation unit according to the invention in the control unit performed three-way distribution valve with an electromagnetic actuator, a control unit with a spring-loaded piston and the node test ban bypass valve with a control piston, the output cavity in the valve body are connected by a bypass with pneumonia podpornoy cavity of the control unit with spring-loaded piston, nadporshnevaya the cavity of the control unit are connected by pneumatic lines with the first output three-way distribution valve and with the possibility of locking the piston through an adjustable orifice with discharge "candle", the second "exit" three-way distribution valve by pneumonia connected with podpornoy the internal cavity of the valve body bypass, "input" distribution t is ghodasara valve is connected by pneumonia with the "exit" node ban verification, the first "input" which summed up the pilot gas line, the second input node of the ban check valve by-pass connected pneumonia with the input cavity of the bypass valve, which is connected by pneumonia also with a cavity above the activation piston node ban check valve bypass.

The hallmark of the invention is that the control unit is made three-way distribution valve with an electromagnetic actuator, a control unit with a spring-loaded piston and the node test ban bypass valve with a control piston, the output cavity in the valve body are connected by a bypass pneumonia with podpornoy cavity of the control unit with spring-loaded piston, nadporshnevaya the cavity of the control unit are connected by pneumatic lines with the first output three-way distribution valve and with the possibility of locking the piston through an adjustable orifice with discharge "candle", the second "exit" three-way distribution valve by pneumonia connected with podpornoy the internal cavity of the valve body bypass login" three-way distribution valve connected pneumonia with the "exit" node ban verification, to the first "input" which summed up the pilot gas line, the second "input" node ban carrying the key of the bypass valve is connected by pneumonia with the input cavity of the bypass valve, which are connected by pneumonia also with a cavity above the activation piston node ban check valve bypass.

The drawing is a schematic representation of the proposed bypass valve control module.

In case 1, the actual bypass valve 2 has an inlet fitting 3 and the cavity 4, the output pipe 5 and the cavity 6, the inner case 7 holds the spring loaded via the shaft 8 by a spring 9 shut-off piston 10, podpornoy cavity 11 and the flange 12. In the outlet port 5 and the shut-off piston 10 is made of locking edges 13 and 14, respectively. In buildings 1, 7 and the end face 12 is made drilling 15. In the control unit 16 posted by three-way distribution valve 17 to the electromagnetic actuator 18, the control unit 19 with the spring loaded by a spring 20 by the piston 21 and rod 22 and the node test ban 23 of the bypass valve with a control piston 24 and check valve 25. Distribution three-way valve 17 is made with the "input" 26 first 27 and second 28 "outputs", the internal passage 29 and shut-off valve 30. In the control unit 19 also made podpornega cavity 31 and nadporshnevaya cavity 32 with the inlet 33 and outlet 34 which is placed in the loading piston 21 of the spring 20. Pneumonia 35, in which is placed an adjustable choke 36, nadporshnevaya cavity 32 through the outlet 34 is connected with discharge "candle". Podperson the first cavity 31 pneumonia 37 is connected to the output cavity 6 of the bypass valve 2.

Node ban verification 23 of the bypass valve 2 is made nadporshnevaya cavity 38, podpornega cavity 39, which sets strain on the piston 24, the spring 40, the first 41 and second 42, "input", "output" 43 and the inner passage 44. The input cavity 4 of the bypass valve 2 is connected by pneumonia 45 with the cavity 38 and the second "input" 42 host ban check valve 23 bypass. The first "input" 41 node 23 announced the pilot gas line 46, podpornega cavity 39 pneumonia 47 is connected with discharge "candle", and "exit" 43 is connected by pneumonia 48 "input" 26 three-way valve 17. The first "exit" 27 three-way valve 17 is connected by pneumonia 49 to the input 33 newportnews cavity 32 of the control unit 19, and the second "exit" 28 three-way valve 17 is connected by pneumonia 50 and drilling 15 podpornoy cavity 11 of the bypass valve 2. To the input cavity 4 of the valve bypass 2 summed up the backbone of high pressure gas 51 (main discharge), and to the output cavity 6 summed line low pressure gas 52 (suction line). The bypass valve with the control unit equipped with a position sensor 53 of the locking piston 10 and the automatic block 54.

Operates the bypass valve to the control unit as follows (see drawing).

For example, the bypass valve 2 to the control unit 16 is installed on mA is stralem the pipeline between the discharge (main high-pressure gas) and suction (line low gas pressure) of the compressor (compressor) natural gas (not shown).

During normal operation of the compressor (natural gas compressor) the bypass valve 2 is closed, that is, the locking piston 10 their locking edges 14 supported on the locking edge 13 of the outlet pipe 5. When this command from the automation unit 54 through the electromagnetic actuator 18, the valve 30 in a three-way distribution valve (RTC) 17 is in the far left position, i.e. the internal passage 29 in the RTC 17 is closed, and the entrance 26 is open. When the gas of the high pressure (discharge pressure) of the input cavity 4 (summed up in her line 51 through pipe 3) pneumatic line 45 enters nadporshnevaya cavity 38 host ban verification 23, under the action of pressure forcing the piston 24, compressing the spring 40 (leakage of gas from podpornoy cavity 39 through pneumatic line 47 is disposed on a candle), moves down the valve 25, which locks the first "entrance" 41 that connects highway 46 pilot gas, and an internal passage 44 inside the node 23, allowing the high pressure gas in the pneumatic line 45, the second "input" 42, passage 44, "output" 43, pneumatic line 48 and "input" 26 enters the three-way valve 17 and then through the second exit 28, pneumonia 50 and drilling 15 in podporchennuyu cavity 11. Under pressure of this gas shut-off piston 10 with a stop edge 14 rests on the stop edge 13 of the outlet pipe 5 (valve PE auckney closed). From the output cavity 6 gas low pressure (suction pressure)connected thereto highway 52 through pipe 5, the pneumatic line 37 enters podporchennuyu cavity 31 of the control unit 19. In RTC 17 internal passage 29 is blocked by the valve 30 and therefore newportnews cavity 32 of the node 19, the gas pressure is absent, the piston 21 in the node 19 is in its upper position, the rod 22 overlapping the output 34 of the cavity 32.

When the compressor (the compressor for natural gas), for example, surge and, accordingly, necessary to open the bypass valve 2 automation unit 54 removes the voltage from the electromagnetic actuator 18, the valve 30 is moved to the extreme right position and closes the "login" 26 while inside the three-way valve 17 opens the passage 29 and the gas from the cavity 11 under the shut-off piston 10 through pneumatic line 50, "output" 28 and 27 of the valve 17, the pneumatic line 49 and to the input 33 of the control unit 19 will be received in the cavity 32 of node 19. Under the action of gas pressure in the cavity 32 and the spring 20, the piston 21 moves down, the piston rod 22 of the piston 21 will open the output 34 and the gas from the cavity 32 (and, hence, the cavity 11 under the shut-off piston 10) pneumatic line 35 through an adjustable orifice 36 will be discharged on the "candle". Under the action of gas pressure in the cavity 6 (suction pressure of the compressor) and the spring 9 (the force which is transmitted to the piston 10 through the current 8) shut-off piston 10 moves in the inner casing 7 to the right in the end face 12, opening the passage inside the housing 1 of the gas from line 51 (discharge) in line 52 (suction).

The control unit 19 allows through an adjustable throttle 36 and the spring 20 to adjust the speed and the size (bandwidth) of the opening of the bypass valve 2 (the intermediate position of the locking piston 10, no stops at the end of 12). The position sensor 53 outputs the signals about the position of the piston 10 in the automatic block 54.

In the absence of gas pressure in the cavity of the compressor it is possible to perform a health check on the bypass valve 2. In the cavity 38 in this case, there is no pressure, so the piston 24 in the node 23 under the action of the spring 40 is in its upper position with the valve 25 that opens the first "entrance" 41 and the pilot gas line 46 receives access (supply of pilot gas line 46 is a special remote node not shown) to the "input" 26 RTC 17. The automation unit 54 of the electromagnetic actuator 18 moves the valve 30 to the left, opening "sign" 26, and the pilot gas in the pneumatic line 50 enters the cavity 11. The locking piston 10 under the action of pressure of the pilot gas, compressing the spring 9, is moved to the left until landing on the locking edge 13. Then the actuator 18, the valve 30 in the RTC 17 is moved to the right, closes the "login" 26 and opens the passage 29. The pilot of the first gas from the cavity 11 under the shut-off piston 10 through pneumatic line 50, the second "exit" 28, the passage 29 and the first "exit" 27 in RTC 17, the pneumatic line 49, the inlet 33 and outlet 34 at node 19 and pneumatic line 35 with adjustable choke 36 goes to a candle. The locking piston 10 moves to the right until it stops at edge 12. Such operation rasagiline" shut-off piston 10 is produced several times (before starting the compressor in operation).

The bypass valve with a control unit, comprising a housing with input and output cavities and nozzles, defined therein a saddle and an inner housing with a spring-loaded locking piston and podpornoy cavity, the position sensor shut-off piston, the control unit, the gas pipeline of high and low pressure and pilot gas and the automation unit, characterized in that the control unit is made three-way distribution valve with an electromagnetic actuator, a control unit with a spring-loaded piston and the node test ban bypass valve with a control piston, the output cavity in the valve body are connected by a bypass pneumonia with podpornoy cavity of the control unit with the spring loaded piston, nadporshnevaya the cavity of the control unit are connected by pneumatic lines with the first output three-way distribution valve and with the possibility of locking the piston through an adjustable orifice with discharge "candle", the second "output" p is Opredelitel three-way valve by pneumonia connected with podpornoy the internal cavity of the valve body bypass, "sign in" three-way distribution valve connected pneumonia with the "exit" node ban verification, to the first "input" which summed up the pilot gas line, the second input node of the ban check valve by-pass connected pneumonia with the input cavity of the bypass valve, which is connected by pneumonia also with a cavity above the activation piston node ban check valve bypass.



 

Same patents:

Valve (versions) // 2275541

FIELD: vacuum equipment.

SUBSTANCE: invention relates to valves designed for cutting off gas flows on medium boundary at pressure from 2-3 atm to medium vacuum and medium with pressure from atmosphere to medium vacuum (10-5-10-6Pa). Valve contains seat with hole or holes, over which diaphragm is secured by center part made either with of without clicking, normally open or normally closed. Valve is set into action by linear electric motor consisting of winding and armature which can be installed either stationary or movably. Valve can be set into operation by external drive from other electromagnetic device.

EFFECT: reduced energy consumption, contamination of process medium with electromagnetic field, improved reliability and increased service life of valve of valves, simple and compact design of valves.

21 cl

Valve // 2275538

FIELD: power engineering, oil processing, chemical and other industries.

SUBSTANCE: invention relates to pipeline valves and fittings. Proposed valve has body with outer thread on neck and inner gland chamber to seal rod. Shutoff member of rod engages with seat of body. Opposite end of rod engages, through ring groove, with valve control handle. Control handle is secured on threaded bushing. Said bushing engages with thread on body neck and is provided with bridge dividing inner space of bushing into two parts. Rod is locked in upper part by means of retainers. Said retainers are installed in ring groove of rod and are enclosed by ring and cover.

EFFECT: improved reliability of valve in operation.

3 cl, 2 dwg

FIELD: technology for maintaining pressure of liquid within certain volume 3 and simultaneous registration of liquid flowing out of this volume as a result of leak or consumption.

SUBSTANCE: liquid is fed from valve 20, meant for adjusting pressure, provided with means 5-7,22-26, which are opened for feeding liquid into volume 3, when pressure therein drops below first value P1, and which stop liquid influx when pressure in volume 3 reaches predetermined second value P2, which is substantially higher than first pressure value P1. after each opening of adjusting valve 20 at its output clearly visible pressure increase occurs. This pressure increase is registered as pressure pulse, while frequency of formed pressure pulses is controlled and utilized as a measure of present leaks and/or consumption of fed liquid.

EFFECT: simple enough continuous control of pressure and its adjustment.

2 cl, 4 dwg

FIELD: valving.

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EFFECT: reduced sizes.

4 cl, 14 dwg

FIELD: mechanical engineering.

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EFFECT: enhanced reliability and precision.

4 cl, 3 dwg

FIELD: nuclear or power engineering.

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EFFECT: enhanced reliability and expanded functional capabilities.

1 dwg

FIELD: valving.

SUBSTANCE: unit comprises sensor made of piston with sealing rings. The piston is mounted inside the cylinder that is in communication with the space inside the pipeline. The unit comprises housing which is open from above and from bellow. The bottom section is provided with the coupling flange. Above the cylinder, the housing is rectangular. The center of the section of the housing is shifted with respect to the center of the cylinder. The rectangular detachable hatch is mounted from the right side. From above, the housing is covered with the lid provided with two openings. One of the opening receives the adjusting nut, and the other one receives the pickup of linear movement. The cylinder of the housing receives the cylindrical insert for permitting changing its inner diameter. The insert is made of an overturned sleeve. The bottom of the sleeve is provided with the opening. At the top, the cylindrical insert is pressed to the plane of the cylinder defined by the housing. At the bottom, the wall of the cylindrical insert bears on the surface of the seal. The cylindrical insert together with the housing of the unit is locked against movement by means of fastening bolts of the housing. The rod passes through the opening in the bottom of the cylindrical insert for permitting free motion. The rod is made in block with the three disks. The piston with sealing members is secured at the bottom end of the rod inside the cylindrical inert. The sealing members are interposed between the piston and walls of the cylindrical insert and between the top plane of the piston and inner plane of the cylindrical insert. The rod is provided with thread and nut. The end of the inner lever is interposed between the first and second disks. The driving shaft is connected with the inner lever via slots. The ends of the driving shaft are inserted into the openings in the housing for permitting radial rotation. The other end of the driving shaft passes through the sealing unit, projects out of the housing, and is connected to the outer lever provided with the clamp. The clamp has three valves: two valves are used for closing, and one valve is used for opening. Between the second and third disks is bearing jaw that carries the bottom end of the pickup of the linear movement. The components of the control circuit are arranged outside of the housing of the protecting block. The control circuit comprises branch pipe for extracting pressure from the inner space of the valve gate, pulse pipes, check valves, automatic switch to reserve pressure source, hydraulic vessels, hydraulic cylinder, and valve gate.

EFFECT: simplified structure and enhanced reliability.

5 cl, 1 tbl

FIELD: engine engineering.

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1 dwg

FIELD: engine engineering.

SUBSTANCE: electrically controlled valve comprises housing filled with a dielectric fluid. The inner face of the lid covering the housing is provided with flexible pressure-tight sleeve that receives the multi-layer drive made of a piezoelectric material and mounted in the sleeve without spaced relation to the faces. The drive is actuated by the electric pulse and deforms flexible pressure-tight sleeve, thus moving the valve in the axial direction. The valve is normally open. The bottom face of the valve is provided with a flexible sleeve that abuts against the cylindrical gate spring-loaded from below. The gate is provided with bottom head made of a truncated cone and defines a pressure-tight space together with the space of the valve housing filled with a dielectric fluid. The movements of the gate upward and downward are arrested by the flexible sleeve and the conical seat, respectively. The vessel below the conical seat, which receives the compression spring for lifting the gate, is connected with the drain. The top section of the cylindrical gate is set in the guide coupled with the housing of the valve. The groove made above the conical seat of the gate and below the top section of the cylindrical gate is connected with the high-pressure pump through one passage and with the nozzle through the other passage.

EFFECT: enhanced precision of batching.

1 dwg

Control valve // 2269053

FIELD: valving.

SUBSTANCE: control valve comprises actuating mechanism mounted in the chamber connected with the housing. The movable column is made for permitting movement along the axis by means of the actuating mechanism. At least a part of the movable column is hollow. The unit of the stop valve is mounted in part inside the movable column and made for permitting sliding parallel to the axis with respect to the movable column. The stop valve is mounted on the sleeve which is built in the gate of the valve. The valve is shaped so that the fluid flow from the inlet opening to the outlet opening causes the gate of the valve to move toward its open position.

EFFECT: enhanced reliability.

7 cl, 10 dwg

Controlled valve // 2244187

FIELD: valving.

SUBSTANCE: controlled valve has housing with inlet and outlet branch pipes and pipe for recirculation of fluid.

EFFECT: simplified design and enhance efficiency.

3 dwg

Batching valve // 2244188

FIELD: valving.

SUBSTANCE: batching valve is made of magnetic-soft material. The face of the pole tip is provided with an opening.

EFFECT: improved design.

1 dwg

Batching valve // 2244188

FIELD: valving.

SUBSTANCE: batching valve is made of magnetic-soft material. The face of the pole tip is provided with an opening.

EFFECT: improved design.

1 dwg

Valve // 2244189

FIELD: valving.

SUBSTANCE: valve has housing, electromagnet coil, and hollow anchor. The spring member is mounted for permitting locking.

EFFECT: enhanced reliability.

13 cl, 5 dwg

Valve // 2244190

FIELD: valving.

SUBSTANCE: valve has axially aligned branch pipes. The coil of the electromagnet is interposed between the branch pipes. The anchor of the coil is made for permitting its locking.

EFFECT: enhanced reliability.

6 cl, 5 dwg

FIELD: technical means of water supply.

SUBSTANCE: the invention presents a water-mixing tap with contactless remote control and is pertinent to the technical means of water supply. The water-mixing tap with contactless remote control contains a body with a chamber for mixing of water and the tap-changer, feeding pipes, a discharge pipe with an outlet nozzle and an inlet-outlet head, an autonomous control-and- measuring block electrically connected with a source and a receiver of optical rays and with electromagnetic valves of water delivery. The outlet nozzle is made in the form of a centrifugal spraying injector forming a cone of finely dispersed uniformly sprayed water. The discharge pipe is made with a capability to accommodate a fiber-optical transducer with an external modulation, an outlet optical butt of which is placed in the inlet-outlet head of the discharge pipe and the opposite butt of the transducer is optically connected to the source and the receiver of the optical emission located in the autonomous control and measuring block electrically connected with the electromagnetic valves of water feeding. At that the electrical circuit of the block is made on the basis of the integrating circuit of accumulation of the signals of the measuring information. The technical result is a decrease of consumption of water and thermal energy used for its heating up, provision of the switch-on state of the tap only by availability of an object of treatment within the zone of control and at achievement of a combination of contactless of on-off turnings of the water feeding with electric passivity of the tap, its stability against action of electromagnetic interferences and origination of the false on /off switching, protection of sensing optical elements of the contactless drive of the tap against actions of vandals (versions).

EFFECT: the invention ensures a decrease of consumption of water and thermal energy used in the process, provision of the switch-on state of the tap just by availability of an object of treatment in the zone of control, protection against different types of interferences.

2 dwg

Filling float valve // 2248489

FIELD: hydraulic power engineering.

SUBSTANCE: invention relates to hydraulic intake valves designed for metered delivery of liquid into reservoir to be filled. Proposed filling float valve contains housing with vertical inlet branch pipe, outlet hole and cone-like seat inside housing. Shutoff member arranged opposite to seat is made in form of elastic diaphragm with thickening in zone of interaction with seat. Axially movable rod of shutoff member is arranged in bracket. The latter is fixed relative to housing by means of union nut. Rod of shutoff member is mechanically connected with float through lever. Float is installed for vertical displacement in cup installed for vertical adjustment relative to housing. Hole is made in bottom of cup. Float valve fitted in said hole serves to communicate inner space of cup with reservoir under filling when liquid is being drained from the latter. Float is installed for displacement relative to lever by means of adjusting screw. Adapter bracket is found on head of adjusting screw. Post with projections on its side surface is secured on bracket of valve housing. Projections are pointed to side of cup. Shaped projection is made in the latter. Cup is fixed relative to post by means of projection and fitted-on detachable clamp. Diaphragm is hermetically secured over perimeter on housing by means of bracket with union nut to form space in housing from side of seat. Said space communicates with outlet hole and, through seat, with vertical inlet branch pipe. Shaped axle is made on one end of lever. Cylindrical sections of said axle are arranged in coaxial holes of housing bracket. Section in form of sector of circumference in cross section of axle is made between cylindrical section of axle. U-shaped recess is made in rod in its middle part. Said recess accommodates section of lever axle made in form of sector in cross section. Maximum width of said section of axle is from 0.8 to 0.85 of width of U-shaped recess of rod. Wide side of sector is pointed to side of base of U-shaped recess for interaction with sides of U-shaped recess of rod. Center of rotation of sector relative to rod is arranged at distance from rod axis equal to 0.27-0.29of width of U-shaped recess. Hole is made on other end of lever. End of tie-rod mechanically coupled with lever is arranged in said hole of lever. Other end of tie-rod is secured in adapter bracket for adjustment of length of tie-rod.

EFFECT: enlarged functional capabilities of filling float valve, improved reliability in operation.

2 dwg

Filling float valve // 2248490

FIELD: hydraulic power engineering.

SUBSTANCE: invention relates to hydraulic intake valves designed for metered delivery of liquid into reservoir to be filled. Proposed filling float valve contains housing with horizontal inlet branch pipe, side outlet branch pipe and cone-like seat inside housing and shut off member arranged opposite to seat. Axially movable rod of shutoff member is mechanically connected with float by means of two levers. Float is installed for vertical displacement in cup. Hole is made in cup bottom. Float valve installed in said hole communicates inner space of cup with filled reservoir when liquid is being drained from the latter. Cup is installed for vertical adjustment relative to housing. Float is installed for displacement relative to lever by means of adjusting screw. Bracket with axle is secured in screw head. Post with projections on side surface pointed to side of cup is secured on valve housing. Shaped projection is made on cup. Cup is fixed relative to post by means of said projection and fitted-in detachable clamp. Shutoff member is made in form of elastic diaphragm with thickening in zone of interaction with seat. Diaphragm is hermetically secured on housing over perimeter by means of bracket with union nut to form space in housing from side of seat. Said space communicates with side outlet branch pipe and, through seat, with horizontal inlet branch pipe. Rod is arranged in bracket. One of levers is made stepped. One of steps of said lever is secured on housing bracket by means of hinge joint. Fork-like hole is made in second step of said lever. Axle of bracket fitted in said hole is installed for displacement along hole. Axle is secured on head of adjusting bolt. Oblong hole is made in first step of lever connected with housing bracket. Axle is fitted in hole for displacement hole. Axle is cantilever mounted on end of second lever. Shaped axle is made on other end of said lever. Cylindrical sections of said axle are arranged in coaxial holes of housing bracket. Section in form of sector in cross section of axle is made between cylindrical sections on axle. U-shaped recess is made in middle part of rod. Said recess accommodates section of axle of second lever made in form of sector in cross section. Maximum width of said section of axle is from 0.8 to 0.85 of width of rod U-shaped recess. Wide side of sector is pointed to said of base of U-shaped recess engagement with sides of rod U shaped recess. Center of rotation of sector relative to rod is arranged at distance from rod axis equal to 0.27-0.29 of width of U0-shaped recess. Oblong and fork-like holes of stepped lever are parallel to each other. Distance between longitudinal axes of said holes is form 1.25 to 1.35 of hole width.

EFFECT: enlarged functional capabilities of filling float valve, improved reliability of hydraulic delivery valve, reduced noise in operation.

2 dwg

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

Water-saving device // 2249140

FIELD: sanitary facilities.

SUBSTANCE: device is designed to control water tap by pressing on pedal in public service and industry. Proposed device contains pedal and water tap body with shutoff member. Shutoff member of tap and pedal are furnished with bellows, or diaphragm, or plunger chambers. Said chambers are filled with liquid and are interconnected by flexible pipeline.

EFFECT: improved reliability of device, reduced cost of manufacture.

2 cl, 3 dwg

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