CN206582373U - Piston type axle stream pressure regulator - Google Patents
Piston type axle stream pressure regulator Download PDFInfo
- Publication number
- CN206582373U CN206582373U CN201720267413.5U CN201720267413U CN206582373U CN 206582373 U CN206582373 U CN 206582373U CN 201720267413 U CN201720267413 U CN 201720267413U CN 206582373 U CN206582373 U CN 206582373U
- Authority
- CN
- China
- Prior art keywords
- valve
- pressure
- voltage stabilizing
- commander
- regulation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Landscapes
- Safety Valves (AREA)
Abstract
The utility model proposes a kind of piston type axle stream pressure regulator, it is mainly made up of axle stream regulating valve, voltage regulator controllers and one group of connected signal pipe.It is significantly structurally characterized in that：By runner, reducing pressure by regulating flow and the guiding mechanism functional unit of " separating principle " design separation in axle stream regulating valve.Cylinder sleeve is embedded between valve seat and valve pocket and constitutes annular channel; slide fit piston carries out voltage-regulation voltage-stabilization operation in cylinder sleeve; ensure when piston slides in cylinder sleeve only by push-and-pull action power vertically; the defect that conventional regulator " bottom in and top out meander formula runner " easily produces turbulent flow and causes " flow resistance is big; vibration is big; high noise " is overcome well, has obviously technique effect to further improving regulation precision and pressure regulation stationary performance.The utility model have structure it is simple and direct, production easily, manufacturing cost is low, regulation precision is high, the outstanding advantages of the good and safe and reliable to operation long working life of output pressure stability, there is splendid popularizing application prospect.
Description
Technical field
The utility model is related to gas pressure regulator device, more particularly to a kind of piston type axle stream pressure regulator, belongs to appendix
The technical field of net voltage-regulation voltage-stabilization, the pipeline that it is particularly suitable for being installed on conveying natural gas, liquefied gas and CNG voltage regulating stations is enterprising
Row voltage-regulation voltage-stabilization operation.
Background technology
Gas pressure regulator is mounted to carry out pressure regulation operation downstream pipeline or pipe network offer pressure stability on gas pipeline
A kind of special equipment of source of the gas.Existing most commonly used pressure regulator is mostly by main voltage regulator, pilot valve and is attached thereto
Signal pipe connect etc. is constituted, and its operation principle is：The pressure signal in the gas pipeline of downstream is imported into pilot valve by signal pipe
Interior, pilot valve changes aperture according to the pressure signal of importing, so as to increase or reduce the gas of input main voltage regulator film room
Flow, drives main voltage regulator diaphragm to move and then with movable valve plug hair due to changing the pressure balance of main voltage regulator film room
Raw movement, you can by output pressure stable regulation in the range of the rated pressure of license.In existing pressure regulator production industry, greatly
All it is the regulating valve for being assembled and used with " in bottom in and top out meander formula flow passage structure in valve pocket ", its basic structure is：Make in pressure regulation
During industry, the direction of displacement of adjusting spool and the axis perpendicular of gas pipeline.Although this regulating valve have it is simple in construction,
The low and convenient for installation and maintenance advantage of production cost, still, because medium is " bottom in and top out edge meander in the valve pocket of regulating valve
Formula runner " is moved, it is easy to produce turbulent flow phenomenon.It is in actual motion in the presence of " gas transmission flow resistance is high, medium crushing is big, operation
Dynamic stability performance is poor, vibrating noise is big " technical bug.To be objective, this " bottom in and top out meander formula flow passage structure "
Regulating valve carry out still suffering from some during pressure regulation operation on big flow gathering line or the natural gas line of point defeated station it is technical
Defect.At present, have started to attempt to use on the higher gas transmission line of gathering-transferring technology performance requirement in natural gas transmission and distribution industry
Axial flow valve is used as voltage adjusting device.The basic structure feature of existing axial flow valve is：One and gas pipeline axis are designed in valve pocket
Coaxial annular channel, it is obtained because of the direction of displacement of adjusting spool and the direction of motion of medium and gas pipeline axis coaxle
Name.Because it has the works fine performance of " gas transmission flow is big, flow resistance is low, crushing is small and dynamic stability performance is good ", especially fit
Conjunction is installed on progress pressure regulation operation on the gas transmission line higher to gathering-transferring technology performance requirement.We produce in long campaigns pressure regulator
Product research and develop and market survey in it has also been found that：Also have at present and pressure regulator is used as using the domestic or import axial flow valve product of diaphragm structure
Configuration, still, because import axial flow valve product expense is high, maintaining is expensive, the construction costs and use cost of user
It is very high and to there is after-sale service not in time etc. not enough；The basic structure of existing axial flow valve is：The bulge loop of regulating sleeve outer wall is consolidated
Setting-in is connected to diaphragm support calmly, and the endoporus of regulating sleeve is that medium runner, outer wall are used as the tune that throttles as guiding, cylinder end is slid
Pressure.This pressure regulator for integrating " runner, guiding and throttling voltage regulation function " by regulating sleeve makes in actual production and scene
Following technical pattern defect is still suffered from：First, is big runner as main valve bore due to regulating sleeve endoporus,
Spring can only be installed on the outside of regulating sleeve and cause spring diameter to increase, this manufacture difficulty that can greatly increase spring and life
Cost is produced, the working stability performance of spring can also decline therewith, and this is steady by the regulation precision and pressure regulation that have a strong impact on pressure regulator
Performance.2nd, decreases axiality because the stroke of regulating sleeve and spring is longer, its requirement pole to processing technology
Height, otherwise can also influence the regulation precision and pressure regulation stationary performance of pressure regulator.3rd, it can not carry out multistage drop to throttle point
Pressure design, particularly under the extreme operating condition of " big pressure difference, low discharge ", gas flow rate is increased because valve port opening is too small
When, high velocity air can form serious erosion effect to throttle point and Rapid Damage fails.4th, is using collection due to it
The part that " runner, guiding and reducing pressure by regulating flow " a variety of functions are integrated, its working environment is extremely severe, is easily damaged by erosion
Bad, must be disassembled when needing repairing and changing regulating sleeve could be carried out after epithelium pallet, and maintenance operation is bothered very much, particularly
It is even more that laborious, maintenance cost of taking a lot of work is very high when carrying out field maintenance operation to heavy caliber pressure regulator.This is existing axial-flow type pressure regulation
The problem of device product also needs to further improve and improve, the utility model is just intended to solve this technical task.
Utility model content
The purpose of this utility model is intended to overcome deficiencies of the prior art part, proposes that one kind adjusts axle stream
Shaft orientation flowing channel, guiding mechanism, reducing pressure by regulating flow structure in valve carry out separate design and steady with high regulation precision and pressure regulation
The piston type axle stream pressure regulator of performance.
The purpose of this utility model is achieved by the following technical solution：
The utility model proposes a kind of piston type axle stream pressure regulator, it include axle stream regulating valve, voltage regulator controllers KZ and
Connected preceding pressure signal pipe, afterwards pressure signal pipe, homophony signal pipe, return duct, described voltage regulator controllers KZ is by commanding
Valve and pressure maintaining valve are constituted, and command valve adjusts spring, commander's nut and with commanding spiral shell including lower valve body, middle valve body, upper valve body, commander
Commander's adjusting screw rod of cap thread connection, commander's rubber film component part is equipped between upper valve body and middle valve body and constitutes commander's bottom film chamber,
The rear pressure inlet channel of connection commander's bottom film chamber is provided with middle valve body wall body, outlet passageway is pressed afterwards, in commander's rubber film component part
On base is provided with by commander's bolt connection, the commander adjusts spring-loaded between base and pressure spring plate, commander's regulation spiral shell
The bottom top of bar is affixed on pressure spring plate, and commander's air chamber and the throttling outlet communicated with commander's air chamber are provided with middle valve body wall body
Chamber, throttling outlet passageway, commander's throttling flap is fitted with commander's air chamber and commander's throttling of commander's throttling flap is supported on
Spring, is provided with the commander's inlet channel connected with commander's air chamber in lower valve body wall body, and described pressure maintaining valve includes pressure maintaining valve
Body, voltage stabilizing bonnet, voltage stabilizing regulation spring and the voltage stabilizing adjusting screw rod being threadedly coupled with voltage stabilizing bonnet, in voltage stabilizing bonnet and pressure maintaining valve
Voltage stabilizing rubber film component part is equipped between body and is divided into membrane cavity in voltage stabilizing, voltage stabilizing bottom film chamber, connection is provided with pressure maintaining valve tegmental wall body
The rear pressure introduction passage of membrane cavity in voltage stabilizing, voltage stabilizing adjusts spring-loaded between voltage stabilizing rubber film component part and voltage stabilization plate, voltage stabilizing regulation
The bottom top of screw rod is affixed in voltage stabilization plate, and the voltage stabilizing regulation gas communicated with voltage stabilizing bottom film chamber is provided with voltage stabilizing valve body wall body
Road, voltage stabilizing air chamber, pressure stable throttle valve valve is fitted with voltage stabilizing air chamber and the voltage stabilizing throttling spring of pressure stable throttle valve valve is supported on,
Described pressure maintaining valve is fixedly connected with the lower valve body for being installed on command valve, middle valve body by connecting bolt, and the rear pressure of pressure maintaining valve introduces logical
Road, voltage stabilizing regulation air flue butt up against the rear pressure outlet passageway of command valve, commander's inlet channel formation " docking of closed connection respectively
Air passage structure ", described axle stream regulating valve includes main valve body, the left valve barrel for being installed on main valve body two ends, right bonnet and is fitted to
Valve seat, valve pocket in main valve body, it is characterised in that：Fixed setting-in cylinder sleeve is divided into annular shaft circulation between valve seat and valve pocket
Road, one group of throttling window communicated with annular axial flow channel entrance end is set on the wall body of cylinder sleeve, is set on the wall body of valve pocket
One group of inclination gas outlet communicated with annular axial flow channel outlet is put, the slide fit piston formation cylinder inner chamber in cylinder sleeve, in piston
On be fixedly connected pressure regulation valve rod be installed, the pressure regulator membrane clamped by left pallet, right pallet is equipped between right bonnet and main valve body
Piece is divided into left membrane cavity, right membrane cavity, and the right-hand member of the pressure regulation valve rod, which is fixedly connected, is installed on left pallet, on right pallet, in left support
One group of left disk air flue hole communicated with outlet chamber, right disk air flue hole, the left end set of left pallet are correspondingly arranged on disk, right pallet wall body
Slide fit in valve sleeving inner wall face, the right-hand member set slide fit of right pallet in the outlet chamber internal face of right bonnet, it is described before pressure signal pipe enter
Gas end is fixedly connected to be installed on the left valve barrel of axle stream regulating valve to be connected with inlet chamber, and the outlet side of preceding pressure signal pipe, which is fixed, to be connected
Connect on the voltage stabilizing valve body for be installed on pressure maintaining valve and to be connected with voltage stabilizing air chamber, it is described after one end of pressure signal pipe be connected and installed in axle stream
The output supervisor of regulating valve output end, the other end of rear pressure signal pipe is connected and installed on the middle valve body of command valve is pressed into gas with after
Passage is connected, and the inlet end of the homophony signal pipe is connected and installed on the middle valve body of command valve to be connected with throttling outlet passageway
Logical, the outlet side of homophony signal pipe is connected and installed on the main valve body of axle stream regulating valve to be connected with left membrane cavity, the return duct
Inlet end be connected and installed on the right bonnet of axle stream regulating valve and be connected with right membrane cavity, the outlet side of return duct is connected to output
Supervisor.It is significantly structurally characterized in that：Setting-in cylinder sleeve is separated between 1.th valve seat and valve pocket being equipped with axle stream regulating valve
" annular channel " structure；2.th one group of throttling window in cylinder sleeve on slide fit piston and cylinder sleeve wall body is in " circular passage " import
End forms " throttling pressure adjusting structure "；The left end of the left pallet of voltage regulation diaphragm is covered slide fit in valve sleeving inner wall face, the right side of right pallet by the 3.th
End set slide fit constitutes " guiding mechanism " being separated with " throttling pressure adjusting structure " in the outlet chamber internal face of right bonnet；4.th
Piston and clamp between the left pallet of voltage regulation diaphragm, right pallet connection pressure regulation valve rod is installed and constitute pushing piston " vertically "
" drive mechanism ", the design of this brand new can ensure that piston left and right sliding in cylinder sleeve when carrying out throttling pressure regulation operation only by
Push-and-pull action power vertically and with good positioning and guiding performance.It overcomes conventional regulator " bottom in and top out well
Meander formula runner " easily produces use defect that is turbulent and causing " flow resistance is big, and vibration is big, high noise ", and further raising is adjusted
Press precision and pressure regulation stationary performance that there is obviously technique effect.
Furthermore, it also has following technical characteristic：
The pressure spring of supporting piston is fitted with cylinder sleeve.This structure being fitted to pressure spring in cylinder sleeve is set
Meter, the diameter for greatly reducing pressure spring, the manufacture difficulty for reducing pressure spring and production cost, can obviously improve tune
The working stability performance of pressing spring, the pressure spring being equipped with can effectively buffer the push-and-pull action power to piston and then strengthen piston
The stationary performance of left and right sliding in cylinder sleeve, it has necessarily to the regulation precision and pressure regulation stationary performance that further improve pressure regulator
Technique effect.
In the left end of piston it is fixedly connected that pressing plate is installed and constituted by screw and press-fits the scarf structure of sealing ring, on the right side of valve seat
Built-up welding sets carbide ring at the end face position corresponding with the sealing ring press-fited.The purpose of this structure design is by press-fiting
Sealing ring and valve seat right side carbide ring formation axle stream regulating valve closing sealing auxiliary structure, pressing plate can effectively stop
High velocity air directly washes away sealing ring, and this structure design has good protective effect to sealing ring.
Connection inlet chamber and the balance pipe of cylinder inner chamber are provided with the pressing plate of piston left end.This balanced hole structure design
Band in inlet chamber can be calmed the anger and mediated into cylinder inner chamber, its effect is：One, is opened in normal regulating work in axle stream regulating valve
During state, it can make slide fit in the inside and outside end face of piston in cylinder sleeve by identical gas pressure, to ensuring piston in cylinder sleeve
Left and right sliding light and flexible performance so that improve pressure regulation reaction speed there is positive effect；Two, are in axle stream regulating valve and closed
During closed state, the band for importing cylinder inner chamber by balance pipe, which calms the anger to be situated between, can act on the inner face of piston always, and it can be by medium pressure
Tight piston formation " air pressure self-tightening type auxiliary seal " structure is pushed, has one to be set for the closing sealing property for strengthening axle stream regulating valve
With.
Clamping the left pallet of voltage regulation diaphragm, wearing with damping bolt is provided with right pallet, set in damping shank of bolt body
It is equipped with the left membrane cavity of connection, the damping micropore of right membrane cavity and is formed and slow lets out air passage structure.It is left that this structure design can effectively improve importing
Buckling ride comfort and stationarity that membrane cavity internal pressure-regulating signal gas is situated between, can slow down because the pressure transient amplitude of pressure regulation signal gas Jie is excessive
To the strong impacts of voltage regulation diaphragm formation, it can be prevented effectively from because left and right membrane cavity pressure difference is excessive and triggers tear to damage pressure regulation skin
The equipment breakdown of film, all has obviously skill to protection voltage regulation diaphragm, extension working life and raising voltage-regulation voltage-stabilization performance
Art effect.
It is 0.06MPa -0.09MPa to control the import for damping the slow discouraged road of micropore, the pressure differential exported between two ends.This
Plant optimization of the pressure differential control between 0.06MPa -0.09MPa between the import that will damp the slow discouraged road of micropore, outlet two ends
Design has splendid aerial drainage slow releasing function, shows by probation：It is to sustained release smooth-going pressure regulation gas Jie's pressure transient amplitude, improvement
Buckling, which smoothes out stationary performance and improves regulation precision, stable output pressure, all has certain technique effect.
It is furnished with abrasion-proof stainless steel set in the outlet chamber internal orifice wall edge of right bonnet, the right-hand member of the right pallet covers slide fit in resistance to
Grind the internal face of stainless steel sleeve.This structure design has good protective effect to right bonnet, because right bonnet is typically all
Manufactured using carbon steel, surface easily produces corrosion and is unfavorable for the slip that right-hand member covers.The structure covered using edge with abrasion-proof stainless steel
The flexible performance of sliding of right-hand member set can be ensured and then ensure the sensitive performance that pressure regulation is oriented to.After abrasion-proof stainless steel set abrasion
Without the right bonnet of integral replacing, it need to only inlay again with an abrasion-proof stainless steel set.
The inclined angle alpha that one group of inclination gas outlet is set on valve pocket is 40 ° -65 °.It is this to tilt port configurations design
The fluidised form that makings can be significantly improved in annular axial flow channel outlet smoothes out stability, to preventing turbulent flow phenomenon, subtracting
Small flow channels resistance, the loss of reduction distribution pressure and reduction vibrating noise all have obviously technique effect.
The utility model compared with the existing technology has the following advantages that：
The utility model has initiated a kind of piston type axle being made up of axle stream regulating valve, voltage regulator controllers and one group of signal pipe
Pressure regulator is flowed, the design feature that it is protruded is：By runner, reducing pressure by regulating flow and the guiding mechanism in axle stream regulating valve by " separately
Principle " is designed as the functional unit of separation.I other words：It is that a cylinder sleeve and main valve housing structure are embedded between valve seat and valve pocket
Into " annular channel " structure, its advantage is：Pressure spring can be fitted in cylinder sleeve and make structure more compact, greatly reduced
The diameter and then reduction manufacture difficulty and production cost of pressure spring, have obvious technology to improving pressure regulation working stability performance
Effect；The piston that slide fit is elapsed vertically by pressure regulation valve rod in cylinder sleeve, you can the entrance point formation " throttling in " circular passage "
Buck configuration " carries out voltage-regulation voltage-stabilization operation, and its advantage is：It will ensure that piston left and right sliding in cylinder sleeve carries out throttling pressure regulation and made
Only by push-and-pull action power vertically during industry, conventional regulator " bottom in and top out meander formula runner " easily production is overcome well
Use defect that is raw turbulent and causing " flow resistance is big, and vibration is big, high noise ", to further raising regulation precision and pressure regulation stationarity
There can be obviously technique effect；Set left and right end set to constitute " guiding mechanism " respectively on left and right pallet, it with it is existing
" throttling is oriented to integrated design " compares, and its advantage is：It is separately designed by " separating principle ", is manufactured single throttle power
Energy part and guide function part, can make single part size more compact and greatly reduce manufacture difficulty, it is easier to ensure
The machining accuracy of single part, it is particularly convenient in the manufacturing, combination assembling, Maintenance and Repair and part replacement disassembling section.
Show by probation：It is this that there is splendid positioning and guiding performance with " guiding mechanism " that " reducing pressure by regulating flow structure " is separated, it
There is obviously technique effect to further improving regulation precision and pressure regulation stationary performance.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model, and also make an abstract accompanying drawing.
Fig. 2 displayings are fixedly connected with left pallet, right tray clamps by one group of attachment screw and debug the structural representation of pressuring film plate.
Fig. 3 is Fig. 2 A-A views, is illustrated in the structural representation that one group of left disk air flue hole is set on left pallet wall body.
Fig. 4 is Fig. 1 I partial enlarged drawing, is illustrated in the left pallet for clamping voltage regulation diaphragm, wears on right pallet with installing damping
Bolt forms the structural representation in slow discouraged road.
Fig. 5 is the structure chart for damping bolt（Amplification）, it is illustrated in the structural representation that damping micropore is set in damping bolt.
Fig. 6 is the structural representation of the valve seat of axle stream regulating valve（Amplification）, it is illustrated in valve seat right-hand member surface build-up welding and hard is set
The structural representation of alloy hoop.
Fig. 7 is the structural representation of the piston of axle stream regulating valve（Amplification）, it is illustrated in the connection of piston left end and pressing plate structure is installed
Into the scarf structural representation for press-fiting sealing ring.
Fig. 8 is the structural representation of the valve pocket of axle stream regulating valve（Amplification）, it is illustrated on the wall body of valve pocket and sets one group to incline
The structural representation of oblique gas outlet.
Fig. 9 is the structural representation of voltage regulator controllers of the present utility model（Amplification）, displaying pressure maintaining valve is by one group of connection spiral shell
Bolt is fixedly connected with the schematic diagram for being installed on command valve formation " closed docking air passage structure ".
Figure 10 is the structural representation of the command valve of voltage regulator controllers（Amplification）.
Figure 11 is the structural representation of the pressure maintaining valve of voltage regulator controllers（Amplification）.
Figure 12 is Figure 10 B-B views, is illustrated in connection on the middle valve body of command valve and installs the connection throttling of homophony signal pipe
The structural representation of outlet passageway.
Description of symbols in accompanying drawing：
1 is homophony signal pipe, and 2 be single solid line arrow, and 3 be left membrane cavity, and 4 be pressure regulation valve rod for damping bolt, 5, and 6 be main valve
Body, 7 be cylinder sleeve, and 8 be annular axial flow passage, and 9 be pressure spring, and 10 be piston, and 11 be left valve barrel, and 12 be valve seat, and 13 be air inlet
Chamber, 14 be sealing ring, and 15 be balance pipe, and 16 be Bifilar hollow arrow, and 17 be screw, and 18 be pressing plate, and 19 be throttling window, and 20 are
Gas outlet is tilted, 21 be valve pocket, and 22 be left disk air flue hole, and 23 be left pallet, and 24 be cylinder inner chamber, and 25 be left end set, and 26 be right disk
Air flue hole, 27 be right-hand member set, and 28 be abrasion-proof stainless steel set, and 29 be right pallet, and 30 be one group of attachment screw, and 31 be preceding pressure signal
Pipe, 32 be outlet chamber, and 33 be output supervisor, 34 be after press signal pipe, 35 be return duct, and 36 be right membrane cavity, and 37 be voltage regulation diaphragm,
38 be right bonnet, and 39 be through hole, and 40 be damping micropore, and 41 be carbide ring, and 42 be commander's nut, and 43 be upper valve body, and 44 are
Middle valve body, 45 be after press inlet channel, 46 be commander's flap shaft, and 47 be commander's air chamber, and 48 be commander's inlet channel, and 49 be lower valve
Body, 50 be one group of connecting bolt, and 51 be that voltage stabilizing adjusts air flue, and 52 be voltage stabilizing valve body, and 53 be voltage stabilizing flap shaft, and 54 be voltage stabilizing epithelium
Component, 55 be voltage stabilizing bonnet, and 56 be voltage stabilizing adjusting screw rod, and 57 be commander's rubber film component part, and 58 be commander for commander's regulation spring, 59
Adjusting screw rod, 60 be commander's bottom film chamber, and 61 be base, and 62 be throttling outlet chamber, and 63 be commander's throttling spring, 64 be after extrude gas
Passage, 65 be commander's bolt for commander's throttling flap, 66, and 67 be pressure spring plate, and 68 be membrane cavity in voltage stabilizing, 69 be after pressure introduce logical
Road, 70 be pressure stable throttle valve valve, and 71 be voltage stabilizing air chamber, and 72 be voltage stabilizing throttling spring, and 73 be voltage stabilizing bottom film chamber, and 74 be voltage stabilizing spiral shell
Bolt, 75 be that voltage stabilizing adjusts spring, and 76 be voltage stabilization plate, and 77 be throttling outlet passageway, and KZ is voltage regulator controllers, and α is inclination angle.
Embodiment
Embodiment of the present utility model is further described below in conjunction with the accompanying drawings：
The utility model proposes piston type axle stream pressure regulator, it mainly by axle stream regulating valve, voltage regulator controllers KZ and with
The preceding pressure signal pipe 31 being connected, rear pressure signal pipe 34, homophony signal pipe 1, return duct 35 constitute.
Described axle stream regulating valve is main by main valve body 6, the left valve barrel 11 for being installed on the two ends of main valve body 6, the and of right bonnet 38
Valve seat 12, the valve pocket 21 being fitted in main valve body 6 are constituted, and fixed setting-in cylinder sleeve 7 is divided into ring between valve seat 12 and valve pocket 21
Shape axial flow passage 8, sets one group of throttling window 19 communicated with the entrance point of annular axial flow passage 8, in valve on the wall body of cylinder sleeve 7
One group of inclination gas outlet 20 communicated with the port of export of annular axial flow passage 8 is set on the wall body of set 21, when actual production is manufactured,
It can be 45 ° by the inclined angle alpha optimal control of one group of inclination gas outlet 20, it is to improving makings in the port of export of annular axial flow passage 8
Fluid stable performance, reduce flow resistance, reduction crushing and reduce noise there is good technique effect.Slide fit is lived in cylinder sleeve 7
Plug 10 forms cylinder inner chamber 24, the pressure spring 9 of supporting piston 10 is also fitted with cylinder sleeve 7, in the left end of piston 10 by screw 17
It is fixedly connected and the scarf structure that the composition of pressing plate 18 press-fits sealing ring 14 is installed, in the right side of valve seat 12 and the sealing ring 14 press-fited
Built-up welding sets the closing sealing auxiliary structure of the formation axle stream regulating valve of carbide ring 41 at corresponding position, in the left end of piston 10
Pressing plate 18 on be provided with the balance pipe 15 of connection inlet chamber 13 and cylinder inner chamber 24, be fixedly connected on piston 10 and pressure regulation be installed
Valve rod 5, the voltage regulation diaphragm 37 clamped by left pallet 23, right pallet 29 is equipped between right bonnet 38 and main valve body 6 and is divided into a left side
Membrane cavity 3, right membrane cavity 36, described left pallet 23, right pallet 29 are to be fixedly connected to be clipped on pressure regulator membrane with one group of attachment screw 30
The arranged on left and right sides of piece 37, is clamping the left pallet 23 of voltage regulation diaphragm 37, is wearing in the through hole 39 on right pallet 29 with being provided with damping spiral shell
Bolt 4, is provided with the damping body of rod of bolt 4 and connects left membrane cavity 3, the damping micropore 40 of right membrane cavity 36 forms to delay and lets out air passage structure,
When actual production is manufactured, the pressure differential optimal control that will can be damped between the import in the slow discouraged road of micropore 40, outlet two ends is
0.08MPa, it is steady to sustained release smooth-going pressure regulation gas Jie's pressure transient amplitude, improvement buckling smooth-going stationary performance and raising regulation precision
Determining output pressure all has obvious technique effect.The right-hand member of the pressure regulation valve rod 5, which is fixedly connected, is installed on left pallet 23, right support
On disk 29, one group of left disk air flue hole 22 communicated with outlet chamber 32, right disk are correspondingly arranged on left pallet 23, the wall body of right pallet 29
Air flue hole 26, the left end of left pallet 23 covers 25 slide fits in the internal face of valve pocket 21, is inlayed in the internal orifice wall of outlet chamber 32 of right bonnet 38
Equipped with abrasion-proof stainless steel set 28, the right-hand member of right pallet 29 covers the internal face that 27 slide fits cover 28 in abrasion-proof stainless steel.
Described voltage regulator controllers KZ is made up of the command valve and pressure maintaining valve being connected to one.
Described command valve is main by lower valve body 49, middle valve body 44, upper valve body 43, commander's regulation spring 58, commander's nut
42 and constituted with commander's adjusting screw rod 59 for be threadedly coupled of commander's nut 42, be equipped with and command between upper valve body 43 and middle valve body 44
Rubber film component part 57 constitute commander bottom film chamber 60, be provided with the middle wall body of valve body 44 connection commander bottom film chamber 60 after be pressed into gas lead to
Road 45, rear pressure outlet passageway 64, base 61 is connected and installed with commander's rubber film component part 57 by commander's bolt 66, and the commander adjusts
Section spring 58 is supported between base 61 and pressure spring plate 67, and the bottom top of commander's adjusting screw rod 59 is affixed on pressure spring plate 67, in
Commander's air chamber 47 and the throttling outlet chamber 62 communicated with commander's air chamber 47, throttling outlet passageway 77 are provided with the wall body of valve body 44,
The commander's throttling spring 63 commanded throttling flap 65 and be supported on commander's throttling flap 65, commander are fitted with commander's air chamber 47
The slide fit of commander's flap shaft 46 of throttling flap 65 is provided with and referred in the wall body of lower valve body 49 in the pilot hole of commander's bolt 66
Wave commander's inlet channel 48 of the connection of air chamber 47.
Described pressure maintaining valve it is main by voltage stabilizing valve body 52, voltage stabilizing bonnet 55, voltage stabilizing adjust spring 75 and with voltage stabilizing bonnet 55
The voltage stabilizing adjusting screw rod 56 of threaded connection is constituted, and 54 points of voltage stabilizing rubber film component part is equipped between voltage stabilizing bonnet 55 and voltage stabilizing valve body 52
Membrane cavity 68 in voltage stabilizing, voltage stabilizing bottom film chamber 73 are divided into, the rear pressure of membrane cavity 68 in connection voltage stabilizing is provided with the wall body of voltage stabilizing bonnet 55
Introduction passage 69, voltage stabilizing regulation spring 75 is supported between voltage stabilizing rubber film component part 54 and voltage stabilization plate 76, voltage stabilizing adjusting screw rod 56
Bottom top is affixed in voltage stabilization plate 76, and the voltage stabilizing regulation air flue communicated with voltage stabilizing bottom film chamber 73 is provided with the wall body of voltage stabilizing valve body 52
51st, voltage stabilizing air chamber 71, pressure stable throttle valve valve 70 is fitted with voltage stabilizing air chamber 71 and the voltage stabilizing of pressure stable throttle valve valve 70 is supported on
Throttle spring 72, and the slide fit of voltage stabilizing flap shaft 53 of pressure stable throttle valve valve 70 is in the positioning hole of voltage stabilizing bolt 74.
Described pressure maintaining valve is to be fixedly connected with the lower valve body 49 for being installed on command valve, middle valve body 44 by one group of connecting bolt 50
On, the rear pressure introduction passage 69 of pressure maintaining valve, voltage stabilizing regulation air flue 51 are butted up against into the rear pressure outlet passageway 64 of command valve respectively, referred to
Inlet channel 48 is waved to be formed " the docking air passage structure of closed connection ".
The utility model proposes piston type axle stream pressure regulator installed by following operating procedure：
Inlet piping flanges on axle stream regulating valve left valve barrel 11 are fixedly connected on input supervisor, right bonnet 38 by first step
On outlet pipe flange be fixedly connected on output supervisor 33, as shown in Bifilar hollow arrow 16, you can constitute by input supervisor pass through
" main air delivering pipeline passages " that axle stream regulating valve is downstream supplied to output supervisor 33.
One end of rear pressure signal pipe 34 is connected and installed in the output supervisor 33 of axle stream regulating valve output end by second step, after
The other end of pressure signal pipe 34 is connected and installed on the middle valve body 44 of command valve to be connected with rear pressure inlet channel 45.It will can go out
Output pressure fluctuation signal in air cavity 32 is imported in the voltage stabilizing of the commander's bottom film chamber 60 and pressure maintaining valve of command valve in membrane cavity 68.
The inlet end of preceding pressure signal pipe 31 is fixedly connected and is installed on the left valve barrel 11 of axle stream regulating valve with entering by the 3rd step
Air cavity 13 is connected, and the outlet side of preceding pressure signal pipe 31 is fixedly connected on the voltage stabilizing valve body 52 for be installed on pressure maintaining valve and voltage stabilizing gas
Room 71 is connected；The inlet end of homophony signal pipe 1 is connected and installed on the middle valve body 44 of command valve and throttling outlet passageway 77
It is connected, the outlet side of homophony signal pipe 1 is connected and installed on the main valve body 6 of axle stream regulating valve and is connected with left membrane cavity 3；Most
Afterwards, the inlet end of return duct 35 is connected and installed on the right bonnet 38 of axle stream regulating valve and be connected with right membrane cavity 36, return duct
35 outlet side is connected to output supervisor 33.It can constitute and pressed simultaneously by input in inlet chamber 13 as shown in single solid line arrow 2
" the pressure regulation signal source of the gas passage " of output pressure fluctuation joint effect effect in fluctuation, outlet chamber 32.
The utility model proposes piston type axle stream pressure regulator be as follows progress voltage-regulation voltage-stabilization operation：
Gas transmission administrative staff according to《Transmission ＆ distribution send civil gas management code》Carry out setting operation：Precise manipulation commands adjusting screw rod
59th, voltage stabilizing adjusting screw rod 56, the output pressure exported in supervisor 33 is adjusted to specified output pressure value.
At this moment：Commander's rubber film component part 57, the commander's throttling flap 65 of command valve can be in commander's regulation spring 58, commander's throttlings
In spring 63 and commander's bottom film chamber 60, commander's air chamber 47 equilbrium position state is under the collective effect of air pressure；Pressure maintaining valve it is steady
Press rubber film component part 54, the meeting of pressure stable throttle valve valve 70 and of membrane cavity 68 in voltage stabilizing regulation spring 75, voltage stabilizing throttling spring 72 and voltage stabilizing
Equilbrium position state is in voltage stabilizing bottom film chamber 73, voltage stabilizing air chamber 71 under the collective effect of air pressure；The pressure regulator membrane of axle stream regulating valve
Piece 37 can also be in equilbrium position state in pressure spring 9 and left membrane cavity 3, right membrane cavity 36 under the collective effect of air pressure.At this moment,
Slide fit is just energy in the location of piston 10 in cylinder sleeve 7 and the restriction aperture of one group of throttling window 19 formation of cylinder sleeve 7
Maintain the equilbrium position state of rated output pressure.
It should be noted that：Above-mentioned " equilbrium position state " is a kind of metastable dynamic balance state, this " flat
Weighing apparatus location status " is influenceed all be destroyed at any time by extraneous factor.The utility model proposes piston type axle stream pressure regulator enter
The mechanism of row voltage-regulation voltage-stabilization is exactly：Can be just adjusted automatically in time when this " equilbrium position state " is just destroyed makes
Output pressure, can be stably maintained in rated range by its fast quick-recovery " equilbrium position state ".
For example：When the output pressure of axle stream regulating valve lower end declines because of the increase of downstream user destiny amount, return duct
35 fluctuation signals that can decline output pressure are imported in right membrane cavity 36；Pressure signal pipe 34 can be by the output pressure in outlet chamber 32 afterwards
The fluctuation signal that power declines is imported in the voltage stabilizing of the commander's bottom film chamber 60 and pressure maintaining valve of command valve in membrane cavity 68, the finger in command valve
The equilbrium position state for waving rubber film component part 57 is destroyed, and commander's rubber film component part 57 can be under the promotion of commander's regulation spring 58 downwards
Move and drive commander's throttling flap 65 to move down to increase commander's throttle opening, you can by " the pressure regulation signal of increase " by referring to
Wave air chamber 47 by throttling outlet chamber 62, throttling outlet passageway 77, final inputted in left membrane cavity 3 and loaded by homophony signal pipe 1
Act on the left side of voltage regulation diaphragm 37.At this moment, " the pressure regulation signal of increase " can promote voltage regulation diaphragm 37 to move right and pass through
Pressure regulation valve rod 5 pulls piston 10 to move right therewith, and piston 10 will increase one group of throttle window on cylinder sleeve 7 therewith after moving right
The throttle opening of mouth 19, you can the output flow of increase axle stream regulating valve is until make output pressure increase and tend towards stability to set
Fixed rated output pressure value.
Especially, it should be noted that：" the pressure regulation signal of increase " inputted by homophony signal pipe 1 in left membrane cavity 3 is by preceding pressure
Preceding pressure signal source of the gas in inlet chamber 13 is imported pressure maintaining valve and carries out " voltage stabilizing a section through pressure stable throttle valve valve 70 by signal pipe 31
Stream ", " the pressure regulation signal " that is formed after command valve carries out " secondary pressure regulation throttling " operation through commander's throttling flap 65 is entered back into, more entered
Say to one step, can also be commanded in " voltage stabilizing throttling " and the overall process of " secondary pressure regulation throttling " by feed back input simultaneously under
Output pressure declines the " pressure regulation of increase formed by the collective effect of fluctuation signal after valve in membrane cavity 60, voltage stabilizing in membrane cavity 68
Signal ".Obviously, this " the pressure regulation signal of increase " is by pressure stable throttle valve valve 70, commands throttling flap 65 into the compound of series connection
Voltage-regulation voltage-stabilization structure sequentially passes through what " voltage stabilizing throttling " and " secondary pressure regulation throttling " formed afterwards, this " pressure regulation of increase
Signal " carries out having splendid " buckling ride comfort and stationarity " during voltage-regulation voltage-stabilization operation in left membrane cavity 3, can be greatly gentle
The pressure transient amplitude that pressure regulation signal gas is situated between, can effectively extenuate the impact failure power to voltage regulation diaphragm 37, to protection voltage regulation diaphragm
37 extension working lives and the voltage-regulation voltage-stabilization service behaviour of raising pressure regulator all have obviously technique effect.
When occurring extreme case, such as downstream gas transmission line because " booster " cause the output pressure drastically to decline when, by rear pressure
The air pressure that signal pipe 34 is imported in command valve and pressure maintaining valve also can rapid decrease.At this moment, commander's throttling spring 63, voltage stabilizing throttling bullet
Spring 72 can promote commander's throttling flap 65, pressure stable throttle valve valve 70 to move up and pressed before closing command valve and pressure maintaining valve fast shut-off
Signal source of the gas.At the same time, piston 10 can quick one group of throttling for being moved to the left closing cylinder sleeve 7 under the promotion of pressure spring 9
Window 19, you can quick closedown axle stream regulating valve carries out safeguard protection.
Conversely, when axle stream regulating valve lower end output pressure rises because of the reduction of downstream user destiny amount, return duct 35
The fluctuation signal that output pressure can be risen is imported in right membrane cavity 36；Pressure signal pipe 34 also can be by the output pressure in outlet chamber 32 afterwards
The fluctuation signal that power rises is imported in the voltage stabilizing of the commander's bottom film chamber 60 and pressure maintaining valve of command valve in membrane cavity 68, with it is above-mentioned similarly：
The equilbrium position state of commander's rubber film component part 57 in command valve is destroyed, and commander's rubber film component part 57 can be in commander's bottom film chamber 60
Moved up under the promotion for rising air pressure, at this moment, commander's throttling flap 65 can be moved up in the case where commander's throttling spring 63 is promoted
To reduce commander's throttle opening, you can " the pressure regulation signal of reduction " warp knuckle is flowed out into air cavity 62, throttling outlet passageway 77, homophony and believed
Number pipe 1 is inputted in left membrane cavity 3, because the output pressure fluctuation signal that return duct 35 is imported in right membrane cavity 36 is to rise, pressure regulation
Diaphragm 37 can be moved to the left in the presence of air pressure in right membrane cavity 36 and promote piston 10 to be moved to the left by pressure regulation valve rod 5, living
Plug 10 will reduce the throttle opening of one group of throttling window 19 on cylinder sleeve 7 therewith after being moved to the left, you can reduce axle stream regulating valve
Output flow until make output pressure reduce and tend towards stability to set rated output pressure value.So far, you can perfect
Realize goal of the invention of the present utility model in ground.
Claims (8)
1. a kind of piston type axle stream pressure regulator, it includes axle stream regulating valve, voltage regulator controllers（KZ）With connected preceding pressure
Signal pipe（31）, press signal pipe afterwards（34）, homophony signal pipe（1）, return duct（35）, described voltage regulator controllers（KZ）By commanding
Valve and pressure maintaining valve composition, command valve include lower valve body（49）, middle valve body（44）, upper valve body（43）, commander regulation spring（58）, refer to
Wave nut（42）With with commander nut（42）Commander's adjusting screw rod of threaded connection（59）, in upper valve body（43）With middle valve body（44）
Between be equipped with commander rubber film component part（57）Constitute commander's bottom film chamber（60）, in middle valve body（44）It is provided with wall body under connection commander
Membrane cavity（60）Rear pressure inlet channel（45）, press outlet passageway afterwards（64）, in commander's rubber film component part（57）On by commander's bolt
（66）It is connected and installed with base（61）, commander's regulation spring（58）It is supported on base（61）With pressure spring plate（67）Between, refer to
Wave adjusting screw rod（59）Bottom top be affixed on pressure spring plate（67）On, in middle valve body（44）Commander's air chamber is provided with wall body（47）With
With commander's air chamber（47）The throttling outlet chamber communicated（62）, throttling outlet passageway（77）, in commander's air chamber（47）Inside it is fitted with finger
Wave throttling flap（65）Throttling flap is commanded with being supported on（65）Commander throttling spring（63）, in lower valve body（49）Set in wall body
It is equipped with and commander's air chamber（47）Commander's inlet channel of connection（48）, described pressure maintaining valve includes voltage stabilizing valve body（52）, pressure maintaining valve
Lid（55）, voltage stabilizing regulation spring（75）With with voltage stabilizing bonnet（55）The voltage stabilizing adjusting screw rod of threaded connection（56）, in voltage stabilizing bonnet
（55）With voltage stabilizing valve body（52）Between be equipped with voltage stabilizing rubber film component part（54）It is divided into membrane cavity in voltage stabilizing（68）, voltage stabilizing bottom film chamber
（73）, in voltage stabilizing bonnet（55）Membrane cavity in connection voltage stabilizing is provided with wall body（68）Rear pressure introduction passage（69）, voltage stabilizing regulation
Spring（75）It is supported on voltage stabilizing rubber film component part（54）With voltage stabilization plate（76）Between, voltage stabilizing adjusting screw rod（56）Bottom top be affixed on it is steady
Pressing plate（76）On, in voltage stabilizing valve body（52）It is provided with wall body and voltage stabilizing bottom film chamber（73）The voltage stabilizing regulation air flue communicated（51）、
Voltage stabilizing air chamber（71）, in voltage stabilizing air chamber（71）Inside it is fitted with pressure stable throttle valve valve（70）Be supported on pressure stable throttle valve valve（70）'s
Voltage stabilizing throttling spring（72）, described pressure maintaining valve is by connecting bolt（50）It is fixedly connected with the lower valve body for being installed on command valve（49）、
Middle valve body（44）, the rear pressure introduction passage of pressure maintaining valve（69）, voltage stabilizing regulation air flue（51）The rear extrusion of command valve is butted up against respectively
Gas passage（64）, commander inlet channel（48）Formed " the docking air passage structure of closed connection ", described axle stream regulating valve includes
Main valve body（6）, be installed on main valve body（6）The left valve barrel at two ends（11）, right bonnet（38）Be fitted to main valve body（6）Interior valve seat
（12）, valve pocket（21）, it is characterised in that：In valve seat（12）With valve pocket（21）Between fixed setting-in cylinder sleeve（7）It is divided into annular shaft
Circulation road（8）, in cylinder sleeve（7）Wall body on one group and annular axial flow passage are set（8）The throttling window that entrance point is communicated（19）,
In valve pocket（21）Wall body on one group and annular axial flow passage are set（8）The inclination gas outlet that the port of export is communicated（20）, in cylinder sleeve
（7）Interior slide fit piston（10）Form cylinder inner chamber（24）, in piston（10）On be fixedly connected pressure regulation valve rod be installed（5）, in right valve
Lid（38）With main valve body（6）Between be equipped with by left pallet（23）, right pallet（29）The voltage regulation diaphragm clamped（37）It is divided into left film
Chamber（3）, right membrane cavity（36）, the pressure regulation valve rod（5）Right-hand member be fixedly connected and be installed on left pallet（23）, right pallet（29）On,
In left pallet（23）, right pallet（29）One group and outlet chamber are correspondingly arranged on wall body（32）The left disk air flue hole communicated（22）, it is right
Disk air flue hole（26）, left pallet（23）Left end set（25）Slide fit is in valve pocket（21）Internal face, right pallet（29）Right-hand member set
（27）Slide fit is in right bonnet（38）Outlet chamber（32）Internal face, the preceding pressure signal pipe（31）Inlet end be fixedly connected with installation
In the left valve barrel of axle stream regulating valve（11）Upper and inlet chamber（13）It is connected, preceding pressure signal pipe（31）Outlet side be fixedly connected with peace
Voltage stabilizing valve body loaded on pressure maintaining valve（52）Upper and voltage stabilizing air chamber（71）It is connected, the rear pressure signal pipe（34）One end connection peace
Output supervisor loaded on axle stream regulating valve output end（33）, signal pipe is pressed afterwards（34）The other end be connected and installed in command valve
Valve body（44）It is upper to press inlet channel with rear（45）It is connected, the homophony signal pipe（1）Inlet end be connected and installed in command valve
Middle valve body（44）Upper and throttling outlet passageway（77）It is connected, homophony signal pipe（1）Outlet side be connected and installed in axle stream tune
Save the main valve body of valve（6）Upper and left membrane cavity（3）It is connected, the return duct（35）Inlet end be connected and installed in axle stream regulating valve
Right bonnet（38）Upper and right membrane cavity（36）It is connected, return duct（35）Outlet side be connected to output supervisor（33）.
2. piston type axle stream pressure regulator according to claim 1, it is characterised in that：In cylinder sleeve（7）Supporting is inside fitted with to live
Plug（10）Pressure spring（9）.
3. piston type axle stream pressure regulator according to claim 1 or 2, it is characterised in that：In piston（10）Left end by spiral shell
Nail（17）It is fixedly connected with installation pressing plate（18）Composition press-fits sealing ring（14）Scarf structure, in valve seat（12）Right side and pressure
The sealing ring of dress（14）Built-up welding sets carbide ring at corresponding position（41）.
4. piston type axle stream pressure regulator according to claim 1 or 2, it is characterised in that：In piston（10）The pressing plate of left end
（18）On be provided with connection inlet chamber（13）With cylinder inner chamber（24）Balance pipe（15）.
5. piston type axle stream pressure regulator according to claim 1 or 2, it is characterised in that：Clamping voltage regulation diaphragm（37）'s
Left pallet（23）, right pallet（29）On wear with being provided with damping bolt（4）, in damping bolt（4）Connection is provided with the body of rod left
Membrane cavity（3）, right membrane cavity（36）Damping micropore（40）Formed to delay and let out air passage structure.
6. piston type axle stream pressure regulator according to claim 5, it is characterised in that：Control damping micropore（40）Slow discouraged road
Import, outlet two ends between pressure differential be 0.06MPa -0.09MPa.
7. piston type axle stream pressure regulator according to claim 1 or 2, it is characterised in that：In right bonnet（38）Outlet chamber
（32）Internal orifice wall edge is furnished with abrasion-proof stainless steel set（28）, the right pallet（29）Right-hand member set（27）Slide fit is in abrasion-proof stainless steel
Set（28）Internal face.
8. piston type axle stream pressure regulator according to claim 1 or 2, it is characterised in that：In valve pocket（21）It is upper to set one group
Tilt gas outlet（20）Inclination angle（α）For 40 ° -65 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720267413.5U CN206582373U (en) | 2017-03-20 | 2017-03-20 | Piston type axle stream pressure regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720267413.5U CN206582373U (en) | 2017-03-20 | 2017-03-20 | Piston type axle stream pressure regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206582373U true CN206582373U (en) | 2017-10-24 |
Family
ID=60113613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720267413.5U Withdrawn - After Issue CN206582373U (en) | 2017-03-20 | 2017-03-20 | Piston type axle stream pressure regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206582373U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763960A (en) * | 2017-03-20 | 2017-05-31 | 四川长仪油气集输设备股份有限公司 | Piston type axle stream pressure regulator |
| CN108716558A (en) * | 2018-07-13 | 2018-10-30 | 四川长仪油气集输设备股份有限公司 | Axial-flow type safety shut-off valve and its superpressure block control system |
-
2017
- 2017-03-20 CN CN201720267413.5U patent/CN206582373U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763960A (en) * | 2017-03-20 | 2017-05-31 | 四川长仪油气集输设备股份有限公司 | Piston type axle stream pressure regulator |
| CN108716558A (en) * | 2018-07-13 | 2018-10-30 | 四川长仪油气集输设备股份有限公司 | Axial-flow type safety shut-off valve and its superpressure block control system |
| CN108716558B (en) * | 2018-07-13 | 2024-06-25 | 四川长仪油气集输设备股份有限公司 | Axial flow type safety cut-off valve and overpressure cut-off control system thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106763960A (en) | Piston type axle stream pressure regulator | |
| CN107504238B (en) | The adjustable machinery of critical flow is jammed venturi nozzle | |
| CN103615549B (en) | A kind of aerodynamic testing equipment heavy caliber high pressure pressure regulator valve | |
| CN206582373U (en) | Piston type axle stream pressure regulator | |
| CN202834257U (en) | High pressure reducing ratio constant pressure pressure-reducing valve | |
| CN107061834B (en) | Built-in driving axial-flow type regulating valve | |
| CN106090403B (en) | Large-traffic gas accuse bellows type relief pressure valve | |
| CN204140963U (en) | Axial flow type check valve | |
| CN205118348U (en) | Axial compressor check valve | |
| SG175410A1 (en) | Pressure regulating device, compressed air supply system and motor vehicle | |
| CN106286927B (en) | From pressure-loaded formula pressure regulator | |
| CN110566674B (en) | Novel pressure regulating amortization valve | |
| CN102518849B (en) | Inclined type pressure regulating valve, manufacturing method and application method | |
| CN109751426A (en) | A kind of dynamic flow balance valve | |
| CN206860991U (en) | Axial-flow type pressure-reducing valve | |
| CN204922114U (en) | Piston axial -flow type control air -vent valve | |
| CN206145206U (en) | Shock -proof type natural gas pressure reducer | |
| CN204756052U (en) | Novel axial -flow type step -down voltage regulator | |
| CN211423391U (en) | Novel pressure regulating and silencing valve | |
| CN103644342A (en) | Pneumatic-control pollution-resistant zero-leakage cartridge pressure reducing valve | |
| CN208966245U (en) | Pressure reducing device and conveying system | |
| CN202302164U (en) | Piston type air pressure regulating and reducing valve | |
| CN205669592U (en) | A kind of pneumatic control valve | |
| CN105705800B (en) | Pneumatic circuit pressure charging valve | |
| CN215635209U (en) | Novel axial-flow type gas pressure regulator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171024 Effective date of abandoning: 20230411 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20171024 Effective date of abandoning: 20230411 |