The pressure regulator

 

The regulator is designed to maintain a given pressure level. The regulator includes a housing with nut and septum with hole, with the input and output cavities, with the inlet and outlet nozzles, the cover with a drainage cavity and a spring-loaded regulating piston with a cavity above it and move it in the sleeve and the hole walls, while installed in the lid of the controller PTC site with the lower end, passed through the regulating piston, and placed in buochs spring-loaded spool is arranged to message cavity above the control piston multi-temporal or output cavity of the regulator, or with a drainage cavity. The technical result is increased reliability and simplified design. 3 Il.

The present invention relates to the field of pressure regulators (pressure reducing valves), for example, for systems of regulation and the oil supply device of the compressor and turbine engines.

Known pressure regulator "after" direct action, in which a spring-loaded spool is moved to the installed in the housing of the controller PTC site with fixed and adjustable holes with cover or opening Nominally) (see, for example, the book of K. A. Telnov and other automation gas pumping units with gas turbine drive. - Leningrad: Nedra, LENINGRAD,1983, pages 117 and 118).

Known pressure regulators direct action balanced with the help of a piston single seat regulator (valve), with internal switching mechanism, the adjusting screw and where the environment is under pressure under the valve and at the same time under pulsed valve (see, for example, the directory "Industrial valves", ch. IV, CONTAINERTYPES, Moscow, 1984, page 87...99).

Known pressure reducing valves indirect action with the spring loaded Bolotnikova main valve with damper and auxiliary spring-loaded ball valve and where the cavity above the main valve is connected through the damper with the cavity of the reduced pressure (see, for example, the book of O. F. Nikitin, K. M. Choline. Volumetric hydraulic and pneumatic actuators. - M.: Mashinostroenie, 1981, pages 119 and 120) prototype.

The task of the invention is to improve the reliability of compressors and turbine engines, in particular, by increasing the reliability and accuracy of the used in their regulatory systems and the oil supply pressure regulators (oil).

Susednoj and output cavities, with the inlet and outlet nozzles, cover with a drainage cavity and a spring-loaded regulating piston with a cavity above it and move it in the sleeve and the hole walls, while installed in the lid of the controller PTC site with the lower end, passed through the regulating piston, and placed in buochs spring-loaded spool is arranged to message cavity above the control piston multi-temporal or output cavity of the regulator, or with a drainage cavity.

The hallmark of the invention is that installed in the lid of the controller PTC site with the lower end, passed through the regulating piston, and placed in buochs spring-loaded spool is arranged to message cavity above the control piston multi-temporal or output cavity of the regulator, or with a drainage cavity.

In Fig.1, 2, 3 schematically shows a pressure regulator section.

In the housing 1 with a built-in sleeve 2 made the partition 3, the input cavity 4, the inlet pipe 5, the output cavity 6 and the outlet 7. In the partition 3 is executed hole 8 with truck-edges 9. The body 1 is installed team cover 10 made it drains the elongated part of the pan 12. In the sleeve 2 and the hole 8 is placed with movements of the control piston 16, at the end of the hole 17 is pressed into him by the sleeve 18, through which skipped the lower part of the pan 12. In buochs 12 posted by can move the valve 19 with the annular groove 20, the shut-off belt 21, the circular groove 22, the drilling 23 in the lower end of the spool 19 and the openings 24 between the groove 22 and the drilling of 23.

At the top end of the spool 19 is supported with its bottom face of the spring 25, the upper end through which the thrust bearing 26 supported regulating screw 27 mounted by threaded connection in the lid 10. On the outer cylindrical surface of the regulating piston 16 is made abutment edges 28, below which a portion of the piston 16 in the form of a disc with an outer annular groove 29 and the belt 30. Above the abutment edges 28 in the body of the piston 16 is made external machining (milling) 31 to output them in an outer annular groove 29. In the cavity 32 above the piston 16 is spring 33, the bottom face supported in the piston 16 and the upper face in the cover 10. In the team cover 10 above the valve 19 is made of the cavity 34, which are connected by a hole 35 with a drainage cavity 11.

Operates the pressure regulator sleduyuchey pressure (for example, oil from the pump). The regulating piston 16 supporting edges 28 under the action of the spring 33 supported on the fifth edge 9 in the partition 3. Oil under pressure flows from the cavity 4 in the output cavity 6 through machining (milling) 31, the hole 8 and the annular groove 29, roselius. From the output cavity 6 oil with reduced pressure through the outlet 7 to the consumer. The oil pressure in the output cavity 6 through the holes 17 and 15 is transmitted to the lower end of the spool 19, top-loaded by a spring 25, bogatoi through the thrust bearing 26 adjusting screw 27. If the pressure in the cavity 6 is less than the required (specified by means of an adjusting screw 27), the valve 19 will drop down so that nadporshnevaya cavity 32 through the holes 14 in buochs 12, an annular groove 20 in the spool 19 and the holes 13 in buochs 12 is connected with a drainage cavity 11 in the cover 10. The oil pressure in the cavity 6, the piston 16 will rise, moving on two rails - sleeve 2 and the bushing 18, opening an additional pass of the oil through the hole 8. The pressure in the cavity 6 will grow, the valve 19 will move up, and if the pressure in the cavity 6 is large enough, then shut the belt 21 on the spool 19 will first cover the hole 14 in buochs 12, soedinyayushchie 24 and drilling 23 with the output cavity 6. The movement of the piston 16 upward (opening holes 8) will cease. Thus, in the cavity 6 will be maintained at the set pressure.

The fact that the lower part of the piston is made in the form of a slide valve with the annular groove 29 and the belt 30 allows to minimize the hydrostatic forces during movement of the regulating piston (opening for the oil passage hole 8). The oil that leaked through the gap between the valve 19 and panel Jack 12 in the cavity 34 in the cover 10, through the hole 35 is fed into the drain cavity 11 and then into the drainage system.

Claims

A pressure regulator comprising a housing with a sleeve and a partition with a hole, with the input and output cavities, with the inlet and outlet nozzles, the cover with a drainage cavity and a spring-loaded regulating piston with a cavity above it and move it in the sleeve and the hole walls, characterized in that mounted in the lid of the controller PTC site with the lower end, passed through the regulating piston, and placed in buochs spring-loaded spool is arranged to message cavity above the control piston multi-temporal or output cavity of the regulator, or with a drainage cavity.

 

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Relief valve // 2015440
The invention relates to relief valves

Valve // 2300040

FIELD: valving systems.

SUBSTANCE: valve comprises housing provided with inlet, outlet, and drain connecting pipes and pivot-lever link. The spring-loaded rod with spring-loaded cutoff member has the mechanism for switching and is connected with the fluid to be transported through the diaphragm unit. The diaphragm unit is connected with the mechanism for adjusting the valve through the pivot-lever link in addition to the spring-loaded rod. The adjusting mechanism responds to the decrease or increase of the pressure in the fluid to be transported. They are connected to the spherical surface by means of washers and bearings and are mounted at the opposite ends of the rocker. The rocker is secured to the axle and cooperates with the pivot-lever link.

EFFECT: enhanced reliability and expanded functional capabilities.

1 cl, 3 dwg

Pilot valve // 2337265

FIELD: mechanics.

SUBSTANCE: pilot valve incorporates a body with the control gas feed channel, valve adjustment mechanisms allowing its operation at preset pressure and an actuator with a adjustment spring and a membrane, its one side facing the controlled medium chamber while its other side is linked to the switch-over mechanism. The latter represents a lever, its one end being pivoted on the rotary axle to interact with the said membrane while the other end is linked to the spring-loaded con-rod locking mechanism. One end of the said con-rod is in contact with the mechanism of its raising, the other one being linked to the shut-off element that shuts off the control gas chamber with the controlled medium flow parameters varying. The lever interacts with the membrane via the its rod. The lever side facing the aforesaid adjustment spring interacts with the adjustment element representing a body with two spherical surfaces, one interacting with the mating surface of the lever, the other one with the washer the actuator adjustment spring presses on.

EFFECT: simpler design and higher reliability.

6 cl, 8 dwg

FIELD: construction.

SUBSTANCE: invention relates to valve industry and is intended for use in oil and gas industry, in production areas, GDS (gas distribution station), boiler houses and other facilities. Safety-shutoff valve comprises body 1 with inlet 2 and outlet 3 chambers, installed between them on the vertical axis 4 is gate 5 in the form of rotary disc with sealing side surface, sensitive control mechanism 6 with a movable rod 7, clutch 8 for manual arming of the valve arranged on upper end of the vertical axis 4 and located between them on the same axis 4 turning mechanism 9 with spring twisting 10, one end of which is connected to the housing 1, and the other is connected with bottom end surface of the rotary mechanism 9. Pin 11 is fixed on generating surface of turning mechanism 9. System of levers 12 is fitted in one plane between two parallel plates 13 and 14 levers with dimensions, not extending beyond the parallel plates 13 and 14, except the last lever whose end is equipped with lock 15 of cocked state of the valve to interact with moving rod 7 of sensitive control mechanism 6. Each lever has a twisted spring.

EFFECT: simplified design and higher safety of valve operation.

1 cl, 4 dwg

FIELD: machine building.

SUBSTANCE: disclosed is cam assembly for use in quick-acting safety shutoff valve. Assembly contains cam, having elongated first arm and made with possibility to pivot about rotational axis, located adjacent to first arm first end and operating for torsion spring, having two fixed external arms and two rotary internal arms. Said two inner arms are connected to cam first arm part.

EFFECT: two inner arms are made with possibility to act on cam first arm to displace said cam in again locked position, whereby enabled possibility of repeated cam locking during valve restart.

20 cl, 10 dwg

FIELD: oil and gas industry.

SUBSTANCE: low-pressure control valve comprises a housing with supply channels of controlled working fluid, supply and discharge of hydraulic fluid. In the valve housing, a valve setting mechanism is installed providing for valve actuation during pressure decreasing of controlled working fluid within the predetermined limits. Inside the valve housing, an extra chamber is mounted consisting of several interacting parts. In the walls of the said chamber, through radial channels are made opening into the cavity of hydraulic fluid inlet and outlet channels and connecting the cavity inside the said chamber with the cavities of the said channels. The chamber contains a plunger, desinged for axial movement, in the form of a coil having a central part with cylindrical shaped protrusions at the ends. On the ledge, located in close proximity to the controlled working fluid inlet channel, a sealing ring is placed which interacts with the sealing edge of the end of the said chamber facing the mentioned channel. With one end, the plunger interacts with the piston mounted in the controlled working fluid channel, and with the other, with the mandrel on which a compression spring is installed. With one end, the spring rests against the mandrel shoulder, and with the other, interacts with the adjusting screw base. In one extreme position of the plunger, the sealing ring interacts with the sealing edge of the said chamber end and divides the cavities of hydraulic fluid inlet and outlet channels and the said chamber. In the other extreme position of the plunger, the said ring is located from the sealing edge of the said chamber end at the distance equal to the maximum plunger stroke. The cavities of hydraulic fluid inlet and outlet channels and the said chamber are interconnected in this extreme position and in any other intermediate position of the plunger.

EFFECT: valve design simplification and improved reliability of its work.

3 dwg

FIELD: oil and gas industry.

SUBSTANCE: high-pressure control valve comprises a housing with supply channels of controlled working fluid, supply and discharge of hydraulic fluid. In the valve housing, a valve setting mechanism is installed providing for valve actuation during pressure increasing of controlled working fluid within the predetermined limits. Inside the valve housing, an extra chamber is mounted. In the walls of the said chamber, through radial channels are made opening into the cavity of hydraulic fluid inlet and outlet channels and connecting the cavity inside the said chamber with the cavities of the said channels. The chamber contains a plunger, desinged for axial movement, in the form of a coil having a central part with cylindrical shaped protrusions at the ends. On the ledge, located opposite to the controlled working fluid inlet channel, a sealing ring is placed which interacts with the sealing edge of the end of the said chamber. With one end, the plunger interacts with the piston mounted in the controlled working fluid channel, and with the other, with the mandrel on which a compression spring is installed. With one end, the spring rests against the mandrel shoulder, and with the other, interacts with the adjusting screw base. In one extreme position of plunger, the sealing ring interacts with the sealing edge of the said chamber end and divides the cavities of hydraulic fluid inlet and outlet channels and the said chamber. In the other extreme position, the said ring is located from the sealing edge of the said chamber end at the distance equal to the maximum plunger stroke. The cavities of hydraulic fluid inlet and outlet channels and the said chamber are interconnected in this extreme position and in any other intermediate position of the plunger.

EFFECT: valve design simplification and improved reliability of its work.

3 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

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.

1 dwg

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

FIELD: hydro-pneumo-automatics.

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

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