CN106382408A - Overpressure and underpressure cutting type pressure regulator - Google Patents
Overpressure and underpressure cutting type pressure regulator Download PDFInfo
- Publication number
- CN106382408A CN106382408A CN201611138248.XA CN201611138248A CN106382408A CN 106382408 A CN106382408 A CN 106382408A CN 201611138248 A CN201611138248 A CN 201611138248A CN 106382408 A CN106382408 A CN 106382408A
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- pressure
- cutting
- cut
- valve
- main valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
- F16K31/365—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor the fluid acting on a diaphragm
Abstract
The invention discloses an overpressure and underpressure cutting type pressure regulator. The pressure regulator comprises a main valve, a pressure regulating membrane box, a director, a cutting controller and a group of signal pipes and is structurally characterized in that a cutting executing mechanism which comprises a cutting valve core, a guiding column and a cutting spring and is controlled by the cutting controller is arranged in a gas inlet cavity of the main valve. The cutting controller comprises a cutting membrane box acting on the basis of overpressure and underpressure signals, a control mechanism acting on the basis of an overpressure spring and an underpressure spring as well as a transmission mechanism; when output gas pressure is higher than or lower than a set pressure value, the cutting spring can push the cutting valve core to move upwards to seal the bottom end surface of a valve seat to quickly cut off a gas source for safety protection after a cutting control shaft of the transmission mechanism is released. The regulator has the outstanding advantages of being simple in structure, easy to produce, low in manufacturing cost, convenient to mount and use, high in pressure regulating and stabilizing precision, high in overpressure and underpressure cutting reaction speed, high in safety protection performance, stable in running and long in service life and has the great application prospect in the gas transmission industry.
Description
Technical field
The present invention relates to gas pressure regulation equipment, more particularly, to a kind of hyper-pressure pressure-loss cut-out type pressure regulator, belong to appendix
Line carries out pressure regulation and the technical field of safety guard, and it is suitable for sending the pipeline of natural gas, coal gas, liquefied petroleum gas in transmission ＆ distribution
On install and use, to improve gas line network equipment safeguard protection performance there is obvious technique effect.
Background technology
Gas transmission administration section provides the high-quality combustion gas with steady pressure to be to ensure that gas transmission equipmen is transported safely to numerous clients
One important process of row.In existing gas transmission industry, commonly used voltage-regulation voltage-stabilization technical measures are：Gas transmission line is joined
Dress voltage adjusting device carries out the pressure regulation operation of " peak load shifting formula " to the pressure oscillation of conveyed gas, and its operation principle is to export
The fluctuation signal of pressure to increase or decrease output gas by the outlet aperture that negative feedback mode importing pilot valve automatically adjusts main valve
Pressure is simultaneously stablized in the range of rated pressure.It is reported that, the pressure regulator product of existing use mostly only has voltage-regulation voltage-stabilization
Basic function, is but difficult to quick closedown main valve and carries out safe guarantor when gas line network occurs " superpressure " or " decompression " extreme phenomenon
Shield.In order to solve this problem, the present inventor once proposed a kind of entitled " under-voltage automatic pass after valve on December 12nd, 2014
Close pressure regulator "（CN204420279U）Patented technology, homophony bellows that it mainly by main valve, is fitted to main valve, pressure regulation commander
Device and the rear pressure controller composition being installed on pressure regulation pilot valve inlet end.It is structurally characterized in that：Before existing pressure regulation pilot valve
Hold pressure controller after being further added by, act on rear pressuring film plate in pressure controller after line pressure downstream fluctuation signal is imported and enter
And regulate and control the pressure regulation source of the gas signal of input pressure regulation pilot valve, you can voltage-regulation voltage-stabilization operation is carried out to main valve.When output pressure as little as
During the under-voltage value setting, it can be automatically switched off rear pressure controller and close master by the signal source of the gas of cutting-off pressure-regulating pilot valve
Valve.To be objective, in actual use " under-voltage guarantor is carried out to gas line network by the pressure regulator product that this technical scheme produces
Shield " had also once played certain effect.But, we carry out after market tune in the research and development of long campaigns pressure regulator with to this product
Look into it was also found that this pressure regulator product still suffer from actual motion " undervoltage response speed is relatively slow, voltage-regulation voltage-stabilization precision relatively
Low " technical bug：This be due to it to be adjusted using rear pressure controller or cutting-off pressure-regulating pilot valve signal source of the gas, again
Voltage-regulation voltage-stabilization and " under-voltage protection " operation are carried out by pressure regulation pilot valve to main valve.It is used as pressure regulation operation in actual motion
Fluctuation signal source of the gas first pass around rear pressure controller and work through pressure regulation pilot valve again, due to Pressure Fluctuation Signal
Tediously long precision and the undervoltage reaction that fluctuation signal distortion loss can be led to big and affect voltage-regulation voltage-stabilization of the pipeline of source of the gas
Speed.In addition, this pressure regulator product does not also possess " overpressure protection " function, it still suffers from larger limitation in popularization and application
Property.This is that existing pressure regulator product also needs to further improved place, and this is also the skill that the present invention wants to continue to solve
Art problem.
Content of the invention
A kind of hyper-pressure pressure-loss cut-out is proposed in place of the purpose of the present invention is intended to overcome deficiencies of the prior art
Type pressure regulator.It can carry out " superpressure mistake on the premise of retaining pressure regulation basic function, stably improving voltage-regulation voltage-stabilization precision simultaneously
Crush-cutting breaks " operation, there is high safeguard protection performance to gas line network.
The purpose of the present invention is achieved by the following technical solution：
A kind of hyper-pressure pressure-loss cut-out type pressure regulator proposed by the present invention, it includes main valve, the pressure regulation bellows being installed on main valve, cut-out
Controller, pilot valve and be connected to the front pressure signal pipe of pilot valve, pressure regulation signal pipe, afterwards pressure signal pipe, return duct, in main valve
Be fitted with valve seat, valve pocket, homophony valve element, homophony spring and valve rod, described front pressure signal pipe, rear pressure signal pipe be respectively communicated with
The inlet chamber of main valve, outlet chamber, afterwards pressure one of signal pipe be in charge of the upper membrane cavity being communicated in pressure regulation bellows, described pressure regulation signal
Pipe, return duct are communicated in the bottom film chamber of pressure regulation bellows, the port of export of return duct be communicated in outlet chamber it is characterised in that：In main valve
The position of the corresponding valve seat in inlet chamber bottom at equipped lead, on lead, slide fit is provided with the cut-out valve element of bulge loop,
Cut-out valve element overcoat constitutes cut-out actuator, described cutting-off controlling device bag equipped with the cut-out spring being supported on anchor ring under bulge loop
Include the control chamber being installed on main valve, the actuating unit being fitted to control chamber, controlling organization and drive mechanism, described actuating unit bag
Include and be installed on the cut-out bellows of control chamber side, membrane cover, power transmission shaft, equipped diaphragm unit is divided into cut-out film in cut-out bellows
Chamber, power transmission shaft is fixedly connected on diaphragm unit, connects and install the hyper-pressure pressure-loss signal pipe communicating with cut-out membrane cavity on membrane cover,
The entrance point of hyper-pressure pressure-loss signal pipe is connected to the outlet chamber of main valve, and controlling organization includes being installed on the control of control chamber opposite side
Cylinder, sleeve in application cylinder for the slide fit, damping shaft, are fitted with the superpressure spring being supported on sleeve, in application cylinder in sleeve
It is fitted with the decompression spring being supported on damping shaft, drive mechanism includes transverse arm, angle arm, swing arm and the cut-out being fitted in control chamber
Control shaft, the two ends of transverse arm are connected to power transmission shaft, damping shaft, the upper end of swing arm, angle arm corner end by pin hinge connection in
Control chamber, mounts extension spring between angle arm and swing arm, and the upper round end of angle arm is configured in the recessed dovetail groove of transverse arm, a left side for angle arm
Round end is configured in the recessed dovetail groove in the right side of swing arm, is provided with the fin being adapted with swing arm bottom on cutting-off controlling axle, cut-out
The left axle section of control shaft is threaded onto the air inlet intracavity of main valve, is provided with the left axle end of cutting-off controlling axle and cuts off the bulge loop of valve element
The eccentric that upper ring surface is adapted.It is structurally characterized in that：Join at the position of the corresponding valve seat bottom face in main valve inlet chamber bottom
" the cut-out that dress is made up of cut-out valve element, lead and cut-out spring and is controlled by the cutting-off controlling device being installed on outside main valve
Actuator ".The output pressure signal of intracavity of giving vent to anger is imported in the cut-out bellows of cutting-off controlling device and can carry out " superpressure simultaneously
Decompression is cut off " operation.When the output pressure of intracavity of giving vent to anger exceedes or is less than pressure value set in advance, it is connected to diaphragm group
The power transmission shaft of part can promote transverse arm respectively to the left or displacement to the right, and transverse arm is to the left or all to pass through during displacement to the right
Drive mechanism makes the fin of cutting-off controlling axle thread off, and the cut-out spring of " cut-out actuator " can promote the quickly upper shifting of cut-out valve element
And closed valve seat bottom face cuts off source of the gas in time, you can realization carries out " hyper-pressure pressure-loss cut-out " quick closedown main valve and pacified simultaneously
The goal of the invention of full guard.
It should be noted that：In normal gas transmission operation process, the give vent to anger output pressure of intracavity of main valve is in setting in advance
Between fixed " high-voltage value " and " low voltage value "（I other words, not there is " superpressure " or " decompression " phenomenon, main valve air inlet intracavity
" cut-out actuator " is in lock-out state will not action）, that is, show：This is because the pressure regulation bellows on main valve is to appendix
Line carries out voltage-regulation voltage-stabilization operation and makes it be in normal gas transmission job run state.
Furthermore, the present invention also has following technical characteristic：
Adjust spiral shell seat with the superpressure that thread connecting mode is fitted with supporting superpressure spring in the application cylinder of controlling organization, in sleeve
The decompression that interior thread connecting mode is fitted with supporting decompression spring adjusts spiral shell seat.Management personnel can be adjusted by rotating operation superpressure
Section spiral shell seat, decompression adjust spiral shell seat respectively regulation over-pressure spring, the preload pressure of decompression spring, this structure design particularly convenient in
Controlling organization is preset with the operation of " high-voltage value " and " low voltage value ".
It is provided with the sliding positioning disk of adaptation corresponding with sleeve right side in the left end of damping shaft, described decompression spring
It is supported on the sliding positioning disk of damping shaft.The optimized Structure Design of this " arranging sliding positioning disk in damping shaft left end ", can have
Effect prevents damping shaft from glancing off phenomenon when mobile, and improvement is improved with supporting stabilizer performance and then the optimal control of decompression spring
The working stability performance of mechanism has certain effect.
In the swing arm bottom of drive mechanism, the roller being adapted with the fin of cutting-off controlling axle is fitted with by shaft core.This knot
Structure design can greatly reduce the frictional resistance with cutting-off controlling crown of roll rib surface, and it is to the reaction speed improving hyper-pressure pressure-loss cut-out
Degree has obviously technique effect.
The left axle section of described cutting-off controlling axle is to be threaded onto the air inlet intracavity of main valve by bearing supporting.This " propped up by bearing
Hold cutting-off controlling axle left axle section " optimized Structure Design, to improve cutting-off controlling axle working stability performance, improve hyper-pressure pressure-loss
Cut-out response speed also has certain effect.
The convex paw being adapted with the bulge loop upper ring surface cutting off valve element is provided with eccentric.This structure design can have
Effect improves the top pressure contact performance with the bulge loop upper ring surface of cut-out valve element, and it is steady to the work improving cut-out actuator further
Qualitative energy so improve hyper-pressure pressure-loss cut-out response speed also have certain effect.
The right axle end of cutting-off controlling axle is provided with reset square toes.This structure design particularly convenient in carrying out manual reset
Operation.
It is fitted with bottom valve lid at the position of the corresponding valve seat in the inlet chamber bottom of main valve, described lead is fixedly connected peace
It is loaded on bottom valve lid, the slide fit face of lead is provided with and fills out grease lubrication groove.This " main valve inlet chamber bottom be equipped with bottom valve
The structure design of lid ", it is particularly convenient that in the assembly operation to " cut-out actuator ", the structure design of grease lubrication groove is filled out in setting,
Cut-out valve element can be effectively maintained to have good greasy property along the upper and lower sliding of lead, hyper-pressure pressure-loss cut-out reaction is fast to improving
Degree also has certain effect.
Main valve is fixedly connected the balance trachea being connected with inlet chamber, outlet chamber is installed, balance trachea is joined
Equipped with reset balanced valve.This structure design has a significant effect to the resistance reducing the operation that resets, when resetting operation, can
Trachea connects inlet chamber, outlet chamber forms isopiestic state by balancing to open reset balanced valve, and reset operation Portable power saving, is resetting
Reset balanced valve is closed in time after end of operation.
The present invention compared with the existing technology has the advantage that：
The present invention has initiated a kind of hyper-pressure pressure-loss cut-out type pressure regulator of brand-new control structure, it be structurally characterized in that：In main valve
Air inlet intracavity arrange one by cut-out valve element, lead, cut-out spring form and by cutting-off controlling device be controlled " cut-out
Actuator ".Cutting-off controlling device be acted on by output pressure cut-out bellows, be fitted with the control of superpressure spring, decompression spring
Mechanism and drive mechanism composition, in normal gas transmission operation, the transverse arm of drive mechanism is in the power transmission shaft cutting off bellows and control machine
It is in equilbrium position state, the fin of cutting-off controlling axle is in the lock state under the damping shaft collective effect of structure；When intracavity of giving vent to anger
Output pressure exceed or less than pressure value set in advance when, the transverse arm of drive mechanism is to the left or displacement to the right all can make
The fin of cutting-off controlling axle is threaded off.Cutting-off controlling axle thread off after, cut-out spring can upwardly cut off valve element quick on
Move tight closure valve seat bottom face and cut off source of the gas in time, you can ideally realize carrying out " hyper-pressure pressure-loss cut-out " quick closedown simultaneously
Main valve carries out the goal of the invention of safeguard protection.Show through on probation：The present invention has that structure is simple and direct really, produce easily, manufacture
Low cost, easy to install, voltage-regulation voltage-stabilization high precision, hyper-pressure pressure-loss cut-out response speed are fast, security performance is strong, stable
The outstanding advantages of long working life.
Brief description
Fig. 1 is the structural representation of the present invention, and also make an abstract accompanying drawing.
Fig. 2 is the A A view of Fig. 1, is illustrated in installation control chamber and the cutting-off controlling axle being supported by bearing on main valve and installs
Structural representation in main valve air inlet intracavity.
Fig. 3 is the B B view of Fig. 2（Amplify）, show the structural representation of the cutting-off controlling device of the present invention.
Fig. 4 is turned off the swing arm structure figure of controller（Amplify）, it is illustrated in and the structure of right recessed dovetail groove is arranged on swing arm show
It is intended to.
Fig. 5 is turned off the cross arm structure figure of controller（Amplify）, it is illustrated in and the structure of recessed dovetail groove is arranged on transverse arm show
It is intended to.
Fig. 6 is the C C view of Fig. 5, is illustrated in the cross-sectional structure schematic diagram arranging recessed dovetail groove on transverse arm.
Fig. 7 shows that the eccentric downward top pressure bulge loop being installed on cutting-off controlling axle promotes cut-out valve element to move down and valve seat bottom
It is separated and open the structural representation of main valve.
Fig. 8 is the D D view of Fig. 7（Amplify）, it is illustrated in the structure of the convex paw present position of eccentric when main valve is opened
Schematic diagram.
Fig. 9 is the E E view of Fig. 7（Amplify）, it is illustrated in the knot of the fin present position of cutting-off controlling axle when main valve is opened
Structure schematic diagram.
After Figure 10 is illustrated in the fin dropout of cutting-off controlling axle, cut-out spring elapses stop valve core closed valve seat bottom upwards
The structural representation of main valve is closed in face.
Figure 11 is the F F view of Figure 10（Amplify）, when after being illustrated in the fin dropout of cutting-off controlling axle, main valve is closed, partially
The convex paw of heart wheel rotates the structural representation moving present position.
Figure 12 is the G G view of Figure 10（Amplify）, when showing that main valve is closed, the fin of cutting-off controlling axle rotates residing for shifting
The structural representation of position.
Figure 13 is turned off the cross-sectional structure schematic diagram of control shaft right axle end reset square toes.
Description of symbols in accompanying drawing：
1 is pilot valve, and 2 is bottom film chamber, and 3 is upper membrane cavity, and 4 is pressure regulation bellows, and 5 is solid arrow, and 6 is pressure regulation signal pipe, and 7 is valve
Bar, 8 is homophony spring, and 9 is front pressure signal pipe, and 10 is homophony valve element, and 11 is hollow arrow, and 12 is bulge loop, and 13 is to fill out grease lubrication
Groove, 14 is main valve, and 15 is inlet chamber, and 16 is cut-out spring, and 17 is lead, and 18 is cut-out valve element, and 19 is bottom valve lid, and 20 is valve
Seat, 21 is outlet chamber, and 22 is one group of restriction, and 23 is valve pocket, and 24 is hyper-pressure pressure-loss signal pipe, and 25 is return duct, and 26 is rear pressure
Signal pipe, 27 is balance trachea, and 28 is reset balanced valve, and 29 is bearing, and 30 is cutting-off controlling axle, and 31 is control chamber, and 32 is convex
Rib, 33 is case lid, and 34 is reset square toes, and 35 is convex paw, and 36 is eccentric, and 37 is angle arm, and 38 is transverse arm, and 39 is cut-out film
Box, 40 is application cylinder, and 41 is sleeve, and 42 adjust spiral shell seat for superpressure, and 43 is end cover, and 44 is superpressure spring, and 45 adjust for decompression
Section spiral shell seat, 46 is decompression spring, and 47 is sliding positioning disk, and 48 is left round end, and 49 is swing arm, and 50 is roller, and 51 is shaft core, and 52 are
Extension spring, 53 is pin, and 54 is upper round end, and 55 is diaphragm unit, and 56 is membrane cover, and 57 is cut-out membrane cavity, and 58 is power transmission shaft, and 59 is damping
Axle, 60 is right recessed dovetail groove, and 61 is recessed dovetail groove, and 62 is sealing ring, and 63 is top peristoma, and 64 is dotted arrow.
Specific embodiment
Further describe embodiments of the invention below in conjunction with the accompanying drawings：
A kind of hyper-pressure pressure-loss cut-out type pressure regulator, pressure regulation bellows 4 that it mainly by main valve 14, is installed on main valve 14, cutting-off controlling
Device, pilot valve 1, the front pressure signal pipe 9 being connected to pilot valve 1, pressure regulation signal pipe 6, rear pressure signal pipe 26, return duct 25 and superpressure
Decompression signal pipe 24 is constituted, and in main valve 14, equipped valve seat 20 is divided into inlet chamber 15, outlet chamber 21, by front pressure signal pipe 9, after
Pressure signal pipe 26 is respectively communicated with inlet chamber 15 in main valve 14, outlet chamber 21, one of rear pressure signal pipe 26 is in charge of and is communicated in
The upper membrane cavity 3 of pressure regulation bellows 4, then pressure regulation signal pipe 6, return duct 25 are communicated in the bottom film chamber 2 of pressure regulation bellows 4, by return duct
25 ports of export are communicated in outlet chamber 21 and can form " pressure regulation signal gas Jie's pipeline structure " as shown in solid arrow 5.In main valve
It is located at equipped valve pocket 23, homophony valve element 10, homophony spring 8 and valve rod 7 on valve seat 20, in entering of main valve 14 in 14 outlet chamber 21
Air cavity 15 bottom fixedly mounts bottom valve lid 19, is fixedly connected installation lead on bottom valve lid 19 at the position of corresponding valve seat 20
17, slide fit cut-out valve element 18 on lead 17, be provided with prepackage oils and fatss on the slide fit face of lead 17 fills out grease lubrication groove
13, cut-out valve element 18 is provided with bulge loop 12, is fitted with, outside cut-out valve element 18, the cut-out bullet being supported on 12 times anchor rings of bulge loop
Spring 16 forms " cut-out actuator ".Described cutting-off controlling device includes being installed on the control chamber 31 of main valve 14 lateral surface and is equipped with
In the actuating unit of control chamber 31, controlling organization, drive mechanism.Described actuating unit is mainly by being installed on control chamber 31 side
Cut-out bellows 39, membrane cover 56, power transmission shaft 58 form.In cut-out bellows 39, equipped diaphragm unit 55 forms cut-out membrane cavity 57,
Membrane cover 56 is connected and installed with and cuts off the hyper-pressure pressure-loss signal pipe 24 that membrane cavity 57 communicates, the import of hyper-pressure pressure-loss signal pipe 24
End is connected to the outlet chamber 21 of main valve 14, is fixedly connected installation power transmission shaft 58 on diaphragm unit 55.Controlling organization is mainly by pacifying
It is loaded on the application cylinder 40 and slide fit of the control chamber 31 opposite side sleeve 41 in application cylinder 40, damping shaft 59, superpressure spring 44, lose
Pressing spring 46 forms, and is provided with the sliding positioning disk 47 of adaptation corresponding with sleeve 41 right side in damping shaft 59 left end, described
Superpressure spring 44 be fitted in application cylinder 40 and be supported on sleeve 41, described decompression spring 46 is fitted in sleeve 41 and supports
In the sliding positioning disk 47 of damping shaft 59, it is fitted with the superpressure of supporting superpressure spring 44 in application cylinder 40 with thread connecting mode
Adjust spiral shell seat 42, adjust spiral shell seat 45 with the decompression that thread connecting mode is fitted with supporting decompression spring 46 in sleeve 41, can lead to
Cross rotation superpressure regulation spiral shell seat 42, decompression adjusts spiral shell seat 45 and comes regulation over-pressure spring 44, the preload pressure of decompression spring 46, this
Structure design is particularly convenient to preset " high-voltage value " and the operation of " low voltage value " in management personnel.Drive mechanism is mainly by being equipped with
In the transverse arm 38 in control chamber 31, angle arm 37, swing arm 49, cutting-off controlling axle 30 with mount drawing between angle arm 37 and swing arm 49
Spring 52 forms, and the two ends of transverse arm 38 are connected to power transmission shaft 58, damping shaft 59, the upper end of swing arm 49, the corner end of angle arm 37
It is hinged by pin 53 and is connected to control chamber 31, the upper round end 54 of angle arm 37 is configured in the recessed dovetail groove 61 of transverse arm 38, angle arm 37
In the recessed dovetail groove in the right side 60 that left round end 48 is configured at swing arm 49, in the bottom of swing arm 49, roller 50 is fitted with by shaft core 51, is cutting
It is provided with, in disconnected control shaft 30, the fin 32 being adapted with the roller 50 of swing arm 49 bottom, pass case lid 33 in cutting-off controlling axle 30
Right axle end be provided with reset square toes 34, the left axle section of cutting-off controlling axle 30 is threaded onto the inlet chamber of main valve 14 by bearing 29 supporting
In 15, at the left axle end of cutting-off controlling axle 30, eccentric 36 is installed, eccentric 36 is provided with and cuts off the convex of valve element 18
The convex paw 35 that ring 12 upper ring surface is adapted.Main valve 14 is fixedly connected be provided with and is connected with inlet chamber 15, outlet chamber 21
Balance trachea 27, balance trachea 27 on be fitted with reset balanced valve 28.
It is performed such installation and presets operation：After closing reset balanced valve 28, connect fixing for main valve 14
Connect and be installed on gas transmission supervisor, you can as shown in hollow arrow 11, formed and the air inlet in main valve 14 is entered by input supervisor before valve
Chamber 15, the one group of restriction 22 through valve pocket 23 enter back into outlet chamber 21 after carrying out throttling pressure regulation final by output supervisor after valve downwards
" the main gas distribution channel " of trip supply.At this moment, the output pressure signal in outlet chamber 21 will be imported by hyper-pressure pressure-loss signal pipe 24 and cut
Film breakage chamber 57 is interior and acts on diaphragm unit 55.Further according to《Transmission ＆ distribution send civil gas management code》The skill of the supply rated pressure of regulation
Art requires, and sets " high-voltage value " of excess pressure cutout and " low voltage value " of decompression cut-out as follows：Open the close of application cylinder 40
End-blocking lid 43, slowly rotates superpressure successively and adjusts spiral shell seat 42, decompression regulation spiral shell seat 45 regulation over-pressure spring 44, decompression spring respectively
46 preload pressure, you can preset " high-voltage value " and the operation of " low voltage value ".
It is performed such voltage-regulation voltage-stabilization operation：Output pressure in the outlet chamber 21 of main valve 14 is in set in advance
When between " high-voltage value " and " low voltage value ", that is, show that gas transmission supervisor is in the running status of normal gas transmission operation.As gas transmission master
Pipe affected to cause output pressure to occur to fluctuate by extraneous factor but fluctuation range set " high-voltage value " and " low voltage value " it
Between when, you can the regulator being made up of pressure regulation bellows 4, pilot valve 1 can to output pressure fluctuation carry out " peak load shifting formula "
Voltage-regulation voltage-stabilization operation, i other words, the aperture automatically adjusting one group of restriction 22 of main valve 14 to be increased or decreased output gas by it
Pressure is simultaneously stablized in the range of rated pressure, you can maintain normal gas transmission job run state.
It should be noted that：In normal gas transmission operation process, the transverse arm 38 of drive mechanism can import cut-out membrane cavity 57
Power transmission shaft 58 and superpressure spring 44, decompression spring 46 preload pressure that interior gas pressure promotes to the left promote to the right damping shaft 59
Collective effect under be in equilbrium position state；At this moment, roller 50 top pressure of swing arm 49 bottom is in the fin of cutting-off controlling axle 30
Cutting-off controlling axle 30 is locked on 32 and under the pulling force effect of extension spring 52；Meanwhile, it is installed on cutting-off controlling axle 30
The inclined protuberance position of eccentric 36 at left axle end is in lower end position, i other words the convex paw 35 of eccentric 36 is top pressure in stop valve
Bulge loop 12 upper ring surface of core 18 downwards passage stop valve core 18 and valve seat 20 bottom face are separated in opening, at this moment, cut
Disconnected spring 16 is also in compressive state.
It is performed such excess pressure cutout operation：Preset when the output pressure in the outlet chamber 21 of main valve 14 exceedes
" high-voltage value " when, hyper-pressure pressure-loss signal pipe 24 can import " superpressure " signal in cut-out membrane cavity 57 and act on diaphragm unit
55, the active force of " superpressure " signal by overcome superpressure spring 44, decompression spring 46 preload pressure to left translation power transmission shaft 58 simultaneously
Promote one of sleeve 41 to left dislocation by the sliding positioning disk 47 of transverse arm 38, damping shaft 59, power transmission shaft 58 is promoting transverse arm 38
Just destroy transverse arm 38 original equilbrium position state together to after left dislocation.Under transverse arm 38 can be by it when to left dislocation
The right hypotenuse of recessed dovetail groove 61 promotes the upper round end 54 of angle arm 37 to rotate in the counterclockwise direction.Angle arm 37 is rotating in the counterclockwise direction
When, its left round end 48 by promote swing arm 49 the right side 60 times hypotenuses of recessed dovetail groove and enable swing arm 49 overcome extension spring 52 pulling force and
Swing to the left.Dropout can be unlocked to the fin 32 of cutting-off controlling axle 30 after swing arm 49 swings to the left, work as cutting-off controlling
After axle 30 is released, the cut-out spring 16 of " cut-out actuator " can upwardly cut off valve element 18 quickly upper shifting closed valve seat 20
Bottom face.At this moment, the top peristoma 63 of cut-out valve element 18 and the sealing ring 62 being fitted to valve seat 20 bottom form tight seal, that is,
Main valve 14 cut-out source of the gas can be closed safeguard protection is carried out to gas transmission equipmen.
It is performed such decompression and cuts off operation：Preset when the output pressure in the outlet chamber 21 of main valve 14 is less than
" low voltage value " when, hyper-pressure pressure-loss signal pipe 24 imports " decompression " signal in cut-out membrane cavity 57, and at this moment, decompression spring 46 can be to
Right promotion damping shaft 59 simultaneously drives transverse arm 38, one displacement to the right of power transmission shaft 58, and transverse arm 38 displacement to the right just destroys original
Equilbrium position state.Transverse arm 38 is in displacement to the right, you can promoted the upper circle of angle arm 37 by its left hypotenuse of recessed dovetail groove 61
54 are rotated in a clockwise direction, and when being rotated in a clockwise direction, the left round end 48 of angle arm 37 will promote swing arm 49 to angle arm 37
The recessed dovetail groove in the right side 60 on hypotenuse enable swing arm 49 to overcome the pulling force of extension spring 52 to swing to the left, swing arm 49 swing to the left after i.e.
Dropout can be unlocked to the fin 32 of cutting-off controlling axle 30, in the same manner：Cut-out spring 16 also can promote cut-out valve element 18 quick on
Move tight closure valve seat 20 bottom face, you can quick closedown main valve 14 cut-out source of the gas carries out safeguard protection to gas transmission equipmen.
It should be noted that：No matter in " excess pressure cutout " or " decompression cut-out " operation, cut-out valve element 18 moves past upper
Cheng Zhong, the bulge loop 12 of cut-out valve element 18 all will promote eccentric 36 to rotate and drive cutting-off controlling axle 30 together to rotate, cut-out
The fin 32 of control shaft 30 will go to upper end position along clockwise direction.
It is performed such the operation that resets：After causing the failture evacuation of " superpressure " or " decompression ", you can by such as lower section
Formula carries out manual reset operation recovery gas transmission operation：Open reset balanced valve 28 to be connected inlet chamber 15, given vent to anger by balance trachea 27
Chamber 21 forms isopiestic state, then direction shown in along dotted arrow 64 rotates reset square toes 34 by the fin 32 of cutting-off controlling axle 30
Go to left position in the counterclockwise direction.At this moment, the roller 50 of swing arm 49 bottom will push up under the pulling force effect of extension spring 52 again
It is pressed on the fin 32 of cutting-off controlling axle 30 and cutting-off controlling axle 30 is locked again.Meanwhile, cutting-off controlling axle 30 left axle
The eccentric 36 at end also can rotate together with, and the convex paw 35 of eccentric 36 will rotate to top pressure on the bulge loop 12 of cut-out valve element 18
Anchor ring simultaneously elapses stop valve core 18 downwards, so that cut-out valve element 18 is separated with valve seat 20 bottom face and assumes opening again,
After closing reset balanced valve 28, you can recover the running status of normal gas transmission operation.
Claims (9)
1. a kind of hyper-pressure pressure-loss cut-out type pressure regulator, it includes main valve（14）, be installed on main valve（14）Pressure regulation bellows（4）, cut
Disconnected controller, pilot valve（1）Be connected to pilot valve（1）Front pressure signal pipe（9）, pressure regulation signal pipe（6）, afterwards press signal pipe
（26）, return duct（25）, in main valve（14）Inside it is fitted with valve seat（20）, valve pocket（23）, homophony valve element（10）, homophony spring（8）
And valve rod（7）, described front pressure signal pipe（9）, afterwards press signal pipe（26）It is respectively communicated with main valve（14）Inlet chamber（15）, go out
Air cavity（21）, press signal pipe afterwards（26）One be in charge of and be communicated in pressure regulation bellows（4）Upper membrane cavity（3）, described pressure regulation signal
Pipe（6）, return duct（25）It is communicated in pressure regulation bellows（4）Bottom film chamber（2）, return duct（25）The port of export be communicated in outlet chamber
（21）It is characterised in that：In main valve（14）Inlet chamber（15）Bottom corresponds to valve seat（20）Position at equipped lead（17）,
In lead（17）Upper slide fit is provided with bulge loop（12）Cut-out valve element（18）, in cut-out valve element（18）Be set with outward be supported on convex
Ring（12）The cut-out spring of lower anchor ring（16）Constitute cut-out actuator, described cutting-off controlling device includes being installed on main valve（14）
Control chamber（31）, be fitted to control chamber（31）Actuating unit, controlling organization and drive mechanism, described actuating unit includes pacifying
It is loaded on control chamber（31）The cut-out bellows of side（39）, membrane cover（56）, power transmission shaft（58）, in cut-out bellows（39）Interior equipped diaphragm
Assembly（55）It is divided into cut-out membrane cavity（57）, power transmission shaft（58）It is fixedly connected on diaphragm unit（55）On, in membrane cover（56）Upper company
Connect installation and cut-out membrane cavity（57）The hyper-pressure pressure-loss signal pipe communicating（24）, hyper-pressure pressure-loss signal pipe（24）Entrance point be connected to
Main valve（14）Outlet chamber（21）, controlling organization includes being installed on control chamber（31）The application cylinder of opposite side（40）, slide fit is in control
Cylinder processed（40）Interior sleeve（41）, damping shaft（59）, in application cylinder（40）Inside it is fitted with and be supported on sleeve（41）Superpressure spring
（44）, in sleeve（41）Inside it is fitted with and be supported on damping shaft（59）Decompression spring（46）, drive mechanism includes being fitted to control
Case（31）Interior transverse arm（38）, angle arm（37）, swing arm（49）With cutting-off controlling axle（30）, transverse arm（38）Two ends be connected to
Power transmission shaft（58）, damping shaft（59）, swing arm（49）Upper end, angle arm（37）Corner end by pin（53）Hinge is connected to control chamber
（31）, in angle arm（37）With swing arm（49）Between mount extension spring（52）, angle arm（37）Upper round end（54）It is configured at transverse arm（38）
Recessed dovetail groove（61）Interior, angle arm（37）Left round end（48）It is configured at swing arm（49）The recessed dovetail groove in the right side（60）Interior, cutting
Disconnected control shaft（30）On be provided with and swing arm（49）The fin that bottom is adapted（32）, cutting-off controlling axle（30）Left axle section install
In main valve（14）Inlet chamber（15）Interior, in cutting-off controlling axle（30）Left axle end be provided with and cut off valve element（18）Bulge loop
（12）The eccentric that upper ring surface is adapted（36）.
2. hyper-pressure pressure-loss cut-out type pressure regulator according to claim 1 it is characterised in that：Application cylinder in controlling organization
（40）Interior thread connecting mode is fitted with supporting superpressure spring（44）Superpressure adjust spiral shell seat（42）, in sleeve（41）Inside use spiral shell
Stricture of vagina connected mode is fitted with supporting decompression spring（46）Decompression adjust spiral shell seat（45）.
3. hyper-pressure pressure-loss cut-out type pressure regulator according to claim 1 and 2 it is characterised in that：In damping shaft（59）A left side
End is provided with and sleeve（41）The sliding positioning disk of the corresponding adaptation in right side（47）, described decompression spring（46）It is supported on resistance
Buddhist nun's axle（59）Sliding positioning disk（47）.
4. hyper-pressure pressure-loss cut-out type pressure regulator according to claim 1 and 2 it is characterised in that：Swing arm in drive mechanism
（49）Bottom is by shaft core（51）It is fitted with and cutting-off controlling axle（30）Fin（32）The roller being adapted（50）.
5. hyper-pressure pressure-loss cut-out type pressure regulator according to claim 1 and 2 it is characterised in that：Described cutting-off controlling axle
（30）Left axle section be by bearing（29）Supporting is threaded onto main valve（14）Inlet chamber（15）Interior.
6. hyper-pressure pressure-loss cut-out type pressure regulator according to claim 1 and 2 it is characterised in that：In eccentric（36）On set
It is equipped with and cut off valve element（18）Bulge loop（12）The convex paw that upper ring surface is adapted（35）.
7. hyper-pressure pressure-loss cut-out type pressure regulator according to claim 1 and 2 it is characterised in that：In cutting-off controlling axle（30）
Right axle end be provided with reset square toes（34）.
8. hyper-pressure pressure-loss cut-out type pressure regulator according to claim 1 and 2 it is characterised in that：In main valve（14）Air inlet
Chamber（15）Bottom corresponds to valve seat（20）Position at be fitted with bottom valve lid（19）, described lead（17）It is fixedly connected and be installed on
Bottom valve lid（19）On, in lead（17）Slide fit face on be provided with and fill out grease lubrication groove（13）.
9. hyper-pressure pressure-loss cut-out type pressure regulator according to claim 1 and 2 it is characterised in that：In main valve（14）Upper fixation
It is connected and installed with and inlet chamber（15）, outlet chamber（21）The balance trachea being connected（27）, in balance trachea（27）On be fitted with
Reset balanced valve（28）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611138248.XA CN106382408B (en) | 2016-12-12 | 2016-12-12 | Hyper-pressure pressure-loss cut-out type pressure regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611138248.XA CN106382408B (en) | 2016-12-12 | 2016-12-12 | Hyper-pressure pressure-loss cut-out type pressure regulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106382408A true CN106382408A (en) | 2017-02-08 |
| CN106382408B CN106382408B (en) | 2018-08-31 |
Family
ID=57960109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611138248.XA Active CN106382408B (en) | 2016-12-12 | 2016-12-12 | Hyper-pressure pressure-loss cut-out type pressure regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106382408B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340446A (en) * | 2018-11-26 | 2019-02-15 | 乐山川天燃气输配设备有限公司 | A kind of indirect-action type pressure regulator |
| CN113864666A (en) * | 2021-10-18 | 2021-12-31 | 深圳市凯豪达氢能源有限公司 | Cut off stop valve fast |
| EP3679282B1 (en) | 2017-09-07 | 2022-01-26 | Neoperl GmbH | Valve arrangement |
| CN115789523A (en) * | 2023-02-07 | 2023-03-14 | 乐山川天燃气输配设备有限公司 | Gas transmission and distribution pipe network with remote cut-off function |
| CN116498799A (en) * | 2023-06-25 | 2023-07-28 | 成都川力智能流体设备股份有限公司 | Household intelligent full-effect safety device |
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| EP3679282B1 (en) | 2017-09-07 | 2022-01-26 | Neoperl GmbH | Valve arrangement |
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| CN113864666A (en) * | 2021-10-18 | 2021-12-31 | 深圳市凯豪达氢能源有限公司 | Cut off stop valve fast |
| CN113864666B (en) * | 2021-10-18 | 2023-11-28 | 深圳市凯豪达氢能源有限公司 | Quick cut-off stop valve |
| CN115789523A (en) * | 2023-02-07 | 2023-03-14 | 乐山川天燃气输配设备有限公司 | Gas transmission and distribution pipe network with remote cut-off function |
| CN116498799A (en) * | 2023-06-25 | 2023-07-28 | 成都川力智能流体设备股份有限公司 | Household intelligent full-effect safety device |
| CN116498799B (en) * | 2023-06-25 | 2023-08-29 | 成都川力智能流体设备股份有限公司 | Household intelligent full-effect safety device |
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|---|---|
| CN106382408B (en) | 2018-08-31 |
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