CN108716558A - Axial-flow type safety shut-off valve and its superpressure block control system - Google Patents
Axial-flow type safety shut-off valve and its superpressure block control system Download PDFInfo
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- CN108716558A CN108716558A CN201810769114.0A CN201810769114A CN108716558A CN 108716558 A CN108716558 A CN 108716558A CN 201810769114 A CN201810769114 A CN 201810769114A CN 108716558 A CN108716558 A CN 108716558A
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
Abstract
The invention discloses a kind of axial-flow type safety shut-off valves and its superpressure to block control system, including left valve barrel, right valve barrel, valve seat, spool, valve rod, valve core housing, piston bush and piston；The left valve barrel, valve seat and spool constitute inlet space；The spool is slidably connected in valve core housing, and left part space is constituted on the inside of spool and the valve core housing；Damping space is constituted on the right side of valve core housing, on the left of piston bush inside and piston；It is provided with resetting spring in the damping space；Right space is constituted on the left of the piston bush, piston and right valve barrel inner sleeve；It is provided with signal media hole on the piston bush, the signal media hole is by the outlet of right space and super pressure control valve；The axial-flow type safety shut-off valve of the application is not necessarily to the external energy when work, is automatically cut off using pressure energy possessed by medium itself.Crushing is small when valve working, and negotiability is big, and noise is low；Have the function of single superpressure is blocked, multistage superpressure is blocked with remote control etc..It is particularly suitable for the big flows such as Gao Long-distance Transmission Pipeline, point defeated station and conveys occasion.
Description
Technical field
The present invention relates to burnt gas valve technical fields, more specifically to a kind of axial-flow type safety shut-off valve and its superpressure
Block control system.
Background technology
The typical pressure control system at gas transmission and distribution station is mainly by safety shut-off valve, monitoring pressure regulator and work flow
（Pressure）Regulating valve forms, and the outlet of safety shut-off valve is connected by flange with the valve preceding pipeline of monitoring pressure regulator, and safety is cut
The control valve of disconnected valve is connected by impulse signal pipe with pipeline after the valve of work flow control valve, and downstream feedback control is received
Pressure signal controls the keying of safety shut-off valve, by downstream pressure control within the scope of setting, ensures normal downstream tube
Road supply gas pressure and gas safe conveying.
State Intellectual Property Office discloses a Publication No. CN204062039U on December 31st, 2014, entitled
The utility model patent of " a kind of self-operated safety block valve ", the utility model include sensing element, executing agency and shut-off valve,
Executing agency includes shell and compressed spring inside the shell and lever assembly is arranged, and sensing element is mounted on the upper end of shell
On face, the upper end of sensing element connects the pipeline that is monitored by pressure pipe, and the lower end of sensing element is connected with compressed spring upper end,
Compressed spring lower end connects lever assembly, and the other end of lever assembly is connected with the valve rod of shut-off valve.
The external energy is needed when safety shut-off valve works at present, generally use Electronic control or is manually controlled, is needed artificial
Operation, applicability is relatively narrow, and there are larger noises when work.
Invention content
In order to overcome above-mentioned defect existing in the prior art and deficiency, device itself provides a kind of axial-flow type and blocks safely
Valve and its superpressure block control system, and present invention aims to overcome that above-mentioned deficiency, the axial-flow type of the application are cut safely
Disconnected valve, when work, are not necessarily to the external energy, are automatically cut off using pressure energy possessed by medium itself.Crushing is small when valve working, stream
Logical ability is big, and noise is low；Have the function of single superpressure is blocked, multistage superpressure is blocked with remote control etc..It is particularly suitable for natural gas
The big flows such as long-distance transport pipes, point defeated station convey occasion.
In order to solve above-mentioned problems of the prior art, the application is achieved through the following technical solutions：
Axial-flow type safety shut-off valve, including left valve barrel and right valve barrel, it is characterised in that：Further include valve seat, spool, valve rod, spool
Set, piston bush and piston, the right valve barrel include right valve barrel inner sleeve and right valve barrel housing；The spool, valve rod and piston are constituted
Power transfer mechanism；The left valve barrel, valve seat and spool constitute inlet space；The spool is slidably connected in valve core housing, valve
Left part space is constituted on the inside of core and the valve core housing, and damping space, institute are constituted on the left of valve core housing right side, piston bush inside and piston
It states and is provided with resetting spring in damping space；Spiracle is provided on the piston bush, the spiracle is by damping space and outside
Portion is connected to；The piston bush.Right space is constituted on the left of piston and right valve barrel inner sleeve；It is provided with piston bush on the piston bush
Runner hole, on the inside of left valve barrel on the outside of valve core housing interval, piston bush runner hole, right valve barrel runner hole and right valve barrel inner sleeve with it is right
The interval of valve body housing together constitutes outlet space；Signal media hole, the signal media hole are provided on the piston bush
The tool interface system that setting is put on outside right space and right valve barrel is connected to.
The window for meeting traffic requirement is provided on the valve core housing, the window is empty for being connected to inlet space and outlet
Between.
Balance hole is provided on the spool, the balance hole is used to balance the pressure of inlet space and left part space.
Valve position indicator is installed, for showing spool open or closed position at the tool interface system.
The superpressure of axial-flow type safety shut-off valve blocks control system, it is characterised in that：Including axial-flow type safety shut-off valve and
Several super pressure control valves；
The axial-flow type safety shut-off valve includes left valve barrel, right valve barrel, valve seat, spool, valve rod, valve core housing, piston bush and piston,
The right valve barrel includes right valve barrel inner sleeve and right valve barrel housing；The spool, valve rod and piston constitute power transfer mechanism；It is described
Left valve barrel, valve seat and spool constitute inlet space；The spool is slidably connected in valve core housing, on the inside of spool and the valve core housing
Left part space is constituted, damping space is constituted on the left of valve core housing right side, piston bush inside and piston, is provided in the damping space
Resetting spring；Spiracle is provided on the piston bush, damping space is connected to by the spiracle with outside；The piston bush,
Right space is constituted on the left of piston and right valve barrel inner sleeve；Piston bush runner hole, left valve barrel inside are provided on the piston bush
It is total with the interval of interval, piston bush runner hole, right valve barrel runner hole and right valve barrel inner sleeve and right valve barrel housing on the outside of valve core housing
It is same to constitute outlet space；It is provided with signal media hole on the piston bush, the signal media hole is by right space and superpressure
The outlet of control valve；
Several super pressure control valves are connected with axial-flow type safety shut-off valve, outlet and the axial-flow type of several super pressure control valves are pacified
The right space connection of full block valve；The import of super pressure control valve is connected with the outlet conduit in downstream.
Further include several pressure regulators, a super pressure control valve corresponds to a pressure regulator, the outlet of super pressure control valve and axis
The right space of streaming safety shut-off valve is connected to, and the import of super pressure control valve is connected with the outlet conduit of corresponding pressure regulator.
The quantity of the super pressure control valve is one, and the quantity of the pressure regulator is one, the outlet of super pressure control valve with
The right space of axial-flow type safety shut-off valve is connected to；The import of super pressure control valve is connected with the outlet conduit of pressure regulator.
The quantity of the super pressure control valve is two, and respectively level-one super pressure control valve and two level super pressure control valve are described
The quantity of pressure regulator is two, respectively level-one pressure regulator and second voltage regulation device, level-one super pressure control valve and two level super pressure control
The outlet of valve is connected to the right space of axial-flow type safety shut-off valve；The import of level-one super pressure control valve and level-one pressure regulator
Outlet conduit is connected, and the import of two level super pressure control valve is connected with the outlet conduit of second voltage regulation device.
The window for meeting traffic requirement is provided on the valve core housing, the window is empty for being connected to inlet space and outlet
Between.
Balance hole is provided on the spool, the balance hole is used to balance the pressure of inlet space and left part space.
In this application, the super pressure control valve is Publication No. CN201462116U, a kind of entitled " gas safe
Pneumatic controller disclosed in the patent document of stop valve ".
The super pressure control valve includes control valve body, control valve core, control valve piston shaft, middle valve cap, control valve
Bonnet, second spring, intake valve, bleed valve and pressure guide hole, the pressure guide hole are communicated with the right space, the control valve
The sealing area of spool is more than the sectional area of control valve piston shaft, and the setting power of second spring is equal to the sealing of control valve core
The product of area and pressure medium, control valve piston upper chamber forced area subtract control valve piston shaft equal to control valve piston area
The sectional area of bar.The super pressure control valve is designed to labyrinth damping piston structure, and sealing is using hard soft double matter sealings.It is described pneumatic
Controller further includes the end cap being connect with second bonnet, and through the adjusting screw rod in the end cap, the adjusting spiral shell
The bottom end of bar is contacted with the second spring.
The operation principle of the application is：
When axial-flow type safety shut-off valve opens normal work, for super pressure control valve air inlet valve position in normally opened, bleed valve is in normally closed, surpasses
Pressure control valve spool is under the spring-force driven dual of second spring and closes sealing state always.Axial-flow type safety shut-off valve is normal
Under operating condition, super pressure control valve core is closed, and no gas medium enters the right space, is situated between in right space
Matter pressure is constantly in out close to 0 value, the spool of axial-flow type safety shut-off valve under the active force of pressure medium and resetting spring
State is opened, when system downstream outlet conduit gas pressure is increased to setting cut-out pressure, super pressure control valve core is opened, gas
Medium enters the right space through connecting pipe, signal media hole, under right space active force, in axial-flow type safety shut-off valve
Piston amplification under, power transfer mechanism push axial-flow type safety shut-off valve spool be quickly moved to the left contact its valve
Seat, has cut off the access of inlet space and outlet space, axial-flow type safety shut-off valve is made to close rapidly, cuts off air-flow.Right part is empty
Between generation back pressure communicated with piston shaft upper end by the aperture on intake valve, downstream line after the cut-out of axial-flow type safety shut-off valve
Intake valve is closed in pressure reduction, opens bleed valve, and axial-flow type safety valve right space gas is discharged, is then shut off bleed valve, beats
Drive air valve handle into, the spool of axial-flow type safety valve is lifted off a seat under the action of resetting spring, inlet space and outlet space
Restore connected state, safety shut-off valve resets.
Compared with prior art, technique effect beneficial caused by the application is shown：
1, it is not necessarily to the external energy when axial-flow type safety shut-off valve work of the application, it is automatic using pressure energy possessed by medium itself
Cut-out, crushing is small when valve working, and negotiability is big, and noise is low；It is blocked with single superpressure, multistage superpressure is blocked and remotely controlled
The functions such as system.It is particularly suitable for the big flows such as Gao Long-distance Transmission Pipeline, point defeated station and conveys occasion.Traditional axial-flow type safety shut-off valve
It using automatically controlled control or manually controls, response speed is slow, according to the cut-out in real time of downstream line pressure and cannot open, while also needing
The external energy is wanted to be driven, when spool is opened, it cannot be guaranteed that full-gear, spool unlatching response is slower, and the axis of the application
Streaming safety shut-off valve is automatically cut off using pressure energy realization possessed by medium itself, and working condition bottom spool is resetting bullet
Normally opened full-gear is always maintained under the action of spring, negotiability is big, and noise is small.
2, the axial-flow type safety shut-off valve of the application reaches the super pressure control device setting pressure when line pressure raising,
Controller damps nozzle and opens, and gas enters controller piston, under piston amplification, flap moment standard-sized sheet.Gas
The right space is rapidly entered, is amplified thrust gas by the piston, above-mentioned power transfer mechanism pushes the spool fast
Speed is moved to the left the contact valve seat, has cut off the access of the inlet space and the outlet space, has kept safety shut-off valve fast
Speed is closed.
3, the superpressure of the axial-flow type safety shut-off valve of the application blocks control system, and the multistage to downstream line may be implemented
Control, carries out grading control by downstream line, if there is superpressure phenomenon at a certain lower exit pipeline, can reflect rapidly
At axial-flow type safety shut-off valve, pipeline is carried out to block control, enhances the safety of pipeline, it is long to be particularly suitable for natural gas
The big flows such as defeated pipeline, point defeated station convey occasion.
Description of the drawings
Fig. 1 is the structural schematic diagram of the application axial-flow type safety shut-off valve；
Fig. 2 is the sectional view of the right valve barrel of the application axial-flow type safety shut-off valve；
Fig. 3 is that the application axial-flow type safety shut-off valve superpressure blocks control system architecture figure；
Fig. 4 is that the application axial-flow type safety shut-off valve multistage superpressure blocks control system architecture figure；
Reference numeral：1, valve core housing, 2, balance hole, 3, inlet space, 4, valve rod, 5, spool, 6, valve seat, 7, left valve barrel, 8, left
Portion space, 9, damping space, 10, resetting spring, 11, valve position indicator, 12, piston bush runner hole, 13, right valve barrel housing, 14,
Piston bush, 15, right space, 16, piston, 17, right valve barrel inner sleeve, 18, outlet space, 19, spiracle, 20, right valve barrel runner
Hole, 21, super pressure control valve, 22, signal media hole, 23, tool interface system, 24, pressure regulator, 25, level-one pressure regulator, 26, two level tune
Depressor, 27, level-one super pressure control valve, 28, two level super pressure control valve.
Specific implementation mode
Embodiment 1
As one preferred embodiment of the application, with reference to Figure of description 1 and 2, present embodiment discloses：
Axial-flow type safety shut-off valve, including left valve barrel 7, right valve barrel, valve seat 6, spool 5, valve rod 4, valve core housing 1,14 and of piston bush
Piston 16, the right valve barrel include right valve barrel inner sleeve 17 and right valve barrel housing 13；The spool 5, valve rod 4 and piston 16 constitute dynamic
Force transfer mechanism；The left valve barrel 7, valve seat 6 and spool 5 constitute inlet space 3；The spool 5 is slidably connected to valve core housing 1
Interior, spool 5 and 1 inside of the valve core housing constitute left part space 8,1 right side of valve core housing, 14 inside of piston bush and 16 left side structure of piston
At damping space 9, resetting spring 10 is provided in the damping space 9；Spiracle 19 is provided on the piston bush 14, it is described
Damping space 9 is connected to by spiracle 19 with outside；The piston bush 14, piston 16 and 17 left side of right valve barrel inner sleeve constitute right part
Space 15；Piston bush runner hole 12,7 inside of left valve barrel and the interval on the outside of valve core housing 1, piston are provided on the piston bush 14
Set runner hole 12, right valve barrel runner hole 20 and right valve barrel inner sleeve 17 and the interval of right valve barrel housing 13 together constitute outlet space
18；It is provided with signal media hole 22 on the piston bush 14, the signal media hole 22 is by right space 15 and right valve barrel housing
The tool interface system 23 being arranged on 13 is connected to.Spiracle 19 is set on piston bush 14, can ensure 9 energy of damping space when work
Enough normal " breathing ", " will not feel suffocated ".
In addition, being provided with the window for meeting traffic requirement on the valve core housing 1, the window is for being connected to inlet space 3
With outlet space 18.It is provided with balance hole 2 on the spool 5, the balance hole 2 can balance the inlet space 3 and described
The pressure in left part space 8.Valve position indicator 11 is installed, for showing that spool 5 is turned on and off position at the tool interface system 23
It sets.
Embodiment 2
As the application another embodiment, with reference to Figure of description 3 and 4, present embodiment discloses：
The superpressure of axial-flow type safety shut-off valve blocks control system, including axial-flow type safety shut-off valve, several super pressure control valves
21；In the present embodiment, according to the quantity of super pressure control valve 21, superpressure, which blocks control system, can be divided into the single superpressure side of blocking
Formula and multistage superpressure block mode.
As shown in figure 3, the quantity of the super pressure control valve 21 is one, outlet and the axial-flow type safety of super pressure control valve 21
The right space 15 of block valve is connected to, i.e., super pressure control valve is mounted at the tool interface system of axial-flow type safety shut-off valve；Superpressure control
The import of valve processed is connected with lower exit pipeline.Generally the import of super pressure control valve is connected with the outlet conduit of pressure regulator 24,
But any position of lower exit pipeline can be connected to.
In the present embodiment, the axial-flow type safety shut-off valve includes left valve barrel 7, right valve barrel, valve seat 6, spool 5, valve
Bar 4, valve core housing 1, piston bush 14 and piston 16, the right valve barrel include right valve barrel inner sleeve 17 and right valve barrel housing 13；The valve
Core 5, valve rod 4 and piston 16 constitute power transfer mechanism；The left valve barrel 7, valve seat 6 and spool 5 constitute inlet space 3；It is described
Spool 5 is slidably connected in valve core housing 1, and spool 5 and 1 inside of the valve core housing constitute left part space 8,1 right side of valve core housing, piston
14 inside of set and 16 left side of piston constitute damping space 9, and resetting spring 10 is provided in the damping space 9；The piston bush
Spiracle 19 is provided on 14, damping space 9 is connected to by the spiracle 19 with outside；The piston bush 14, piston 16 and the right side
17 left side of valve body inner sleeve constitutes right space 15；Piston bush runner hole 12,7 inside of left valve barrel are provided on the piston bush 14
With interval, piston bush runner hole 12, right valve barrel runner hole 20 and the right valve barrel inner sleeve 17 and right valve barrel housing 13 in 1 outside of valve core housing
Interval together constitute outlet space 18；Signal media hole 22, the signal media hole 22 are provided on the piston bush 14
Right space 15 is connected to the tool interface system 23 being arranged on right valve barrel housing 13.
In the present embodiment, the super pressure control valve is Publication No. CN201462116U, a kind of entitled " combustion gas peace
The structure of pneumatic controller disclosed in the patent document of full stop valve " is consistent（Super pressure control is not listed in the application individually
The structure of valve）.In addition, the super pressure control valve described in the present embodiment, Publication No. CN201462116U is not refered in particular to, it is entitled
The structure of pneumatic controller disclosed in the patent document of " a kind of gas safety cut-off valve ", as long as super pressure control can be realized
Existing device belongs to the range of the application super pressure control valve.
In the present embodiment, Publication No. CN102147028A, entitled " low pressure may be used in the super pressure control valve
Pilot valve structure disclosed in the patent document of pilot operated safety valve ".
Operation principle is：When axial-flow type safety shut-off valve opens normal work, 21 air inlet valve position of super pressure control valve in normally opened,
Bleed valve is in normally closed, and super pressure control valve core is under the spring-force driven dual of second spring and closes sealing state always.Axis
Under streaming safety shut-off valve normal operation, super pressure control valve core is closed, and no gas medium enters the right side
Portion space 15, pressure medium in pressure medium and resets bullet close to 0 value, the spool of axial-flow type safety shut-off valve in right space 15
Under the active force of spring, it is constantly in open state, when system downstream outlet conduit gas pressure is increased to setting cut-out pressure,
21 spool of super pressure control valve is opened, and gas medium enters the right space 15 through connecting pipe, signal media hole 22, in right part sky
Between under 15 active forces, under 16 amplification of piston of axial-flow type safety shut-off valve, power transfer mechanism pushes axial-flow type safety
The spool 5 of block valve, which is quickly moved to the left, contacts its valve seat 6, has cut off the access of inlet space 3 and outlet space 18, has made axis stream
Formula safety shut-off valve is closed rapidly, and air-flow is cut off.Right space 15 is communicated by the aperture on intake valve with piston shaft upper end
Back pressure is generated, downstream line pressure reduction after the cut-out of axial-flow type safety shut-off valve closes intake valve, opens bleed valve, axis is discharged
15 gas of streaming safety valve right space is then shut off bleed valve, opens intake valve handle, and the spool 5 of axial-flow type safety valve exists
Lift off a seat 6 under the action of resetting spring 10, inlet space 3 and outlet space 18 restore connected state, and safety shut-off valve resets.
From outer, as shown in figure 4, the quantity of the super pressure control valve 21 is two, respectively 27 He of level-one super pressure control valve
The quantity of two level super pressure control valve 28, the pressure regulator is two, respectively level-one pressure regulator 25 and second voltage regulation device 26, level-one
The outlet of super pressure control valve 27 and two level super pressure control valve 28 is connected to the right space of axial-flow type safety shut-off valve 15；Level-one
The import of super pressure control valve 27 is connected with the outlet conduit of level-one pressure regulator 25, import and the two level tune of two level super pressure control valve 28
The outlet conduit of depressor 26 is connected.In the present embodiment, pressure regulator not refer in particular to a certain device, can be its in gas pipeline
His component is realized to the Multistage Control of the distribution pressure system, downstream line is carried out grading control, if a certain lower exit pipe
Occur superpressure phenomenon at road, then can rapidly reflect at axial-flow type safety shut-off valve, pipeline is carried out to block control, is enhanced
The safety of pipeline is particularly suitable for the big flows such as Gao Long-distance Transmission Pipeline, point defeated station and conveys occasion.
In addition, being provided with the window for meeting traffic requirement on the valve core housing 1, the window is for being connected to inlet space 3
With outlet space 18.It is provided with balance hole 2 on the spool 5, the balance hole 2 can balance the inlet space 3 and described
The pressure in left part space 8.Valve position indicator 11 is installed, for showing that spool 5 is turned on and off position at the tool interface system 23
It sets.
Claims (10)
1. axial-flow type safety shut-off valve, including left valve barrel（7）And right valve barrel, it is characterised in that：It further include valve seat（6）, spool
（5）, valve rod（4）, valve core housing（1）, piston bush（14）And piston（16）, the right valve barrel includes right valve barrel inner sleeve（17）With right valve
External set（13）；The spool（5）, valve rod（4）And piston（16）Constitute power transfer mechanism；The left valve barrel（7）, valve seat
（6）And spool（5）Constitute inlet space（3）；The spool（5）It is slidably connected to valve core housing（1）It is interior, spool（5）With the valve
Core retainer plate（1）Inside constitutes left part space（8）, valve core housing（1）Right side, piston bush（14）Inside and piston（16）Left side constitutes damping
Space（9）, the damping space（9）Inside it is provided with resetting spring（10）；The piston bush（14）On be provided with spiracle（19）,
The spiracle（19）By damping space（9）It is connected to outside；The piston bush（14）, piston（16）With right valve barrel inner sleeve（17）
Left side constitutes right space（15）；The piston bush（14）On be provided with piston bush runner hole（12）, left valve barrel（7）Inside with
Valve core housing（1）Interval, the piston bush runner hole in outside（12）, right valve barrel runner hole（20）With right valve barrel inner sleeve（17）With right valve barrel
Housing（13）Interval together constitute outlet space（18）；The piston bush（14）On be provided with signal media hole（22）, institute
State signal media hole（22）By right space（15）With right valve barrel housing（13）The tool interface system of upper setting（23）Connection.
2. axial-flow type safety shut-off valve as described in claim 1, it is characterised in that：The valve core housing（1）On be provided with satisfaction
The window of traffic requirement, the window is for being connected to inlet space（3）And outlet space（18）.
3. axial-flow type safety shut-off valve as described in claim 1, it is characterised in that：The spool（5）On be provided with balance hole
（2）, the balance hole（2）For balancing inlet space（3）With left part space（8）Pressure.
4. axial-flow type safety shut-off valve as described in claim 1, it is characterised in that：The tool interface system（23）Place is equipped with valve
Position indicator（11）, for showing spool（5）Open or closed position.
5. the superpressure of axial-flow type safety shut-off valve blocks control system, it is characterised in that：If including axial-flow type safety shut-off valve and
Dry super pressure control valve（21）；
The axial-flow type safety shut-off valve includes left valve barrel（7）, valve seat（6）, spool（5）, valve rod（4）, valve core housing（1）, piston
Set（14）And piston（16）, the right valve barrel includes right valve barrel inner sleeve（17）With right valve barrel housing（13）；The spool（5）, valve
Bar（4）And piston（16）Constitute power transfer mechanism；The left valve barrel（7）, valve seat（6）And spool（5）Constitute inlet space
（3）；The spool（5）It is slidably connected to valve core housing（1）It is interior, spool（5）With the valve core housing（1）Inside constitutes left part space
（8）, valve core housing（1）Right side, piston bush（14）Inside and piston（16）Left side constitutes damping space（9）, the damping space（9）
Inside it is provided with resetting spring（10）；The piston bush（14）On be provided with spiracle（19）, the spiracle（19）It will damping sky
Between（9）It is connected to outside；The piston bush（14）, piston（16）With right valve barrel inner sleeve（17）Left side constitutes right space
（15）；The piston bush（14）On be provided with piston bush runner hole（12）, left valve barrel（7）Inside and valve core housing（1）Between outside
Every, piston bush runner hole（12）, right valve barrel runner hole（20）With right valve barrel inner sleeve（17）With right valve barrel housing（13）Interval it is total
It is same to constitute outlet space（18）；The piston bush（14）On be provided with signal media hole（22）, the signal media hole（22）
By right space（15）With super pressure control valve（21）Outlet；
Several super pressure control valves（21）It is connected with axial-flow type safety shut-off valve, outlet and the axis stream of several super pressure control valves
The right space of formula safety shut-off valve（15）Connection；The import of super pressure control valve is connected with the outlet conduit in downstream.
6. the superpressure of axial-flow type safety shut-off valve as claimed in claim 5 blocks control system, it is characterised in that：If further including
Dry pressure regulator（24）, a super pressure control valve（21）A corresponding pressure regulator（24）, super pressure control valve（21）Outlet and axis
The right space of streaming safety shut-off valve（15）Connection, the import of super pressure control valve and corresponding pressure regulator（24）Outlet conduit
It is connected.
7. the superpressure of axial-flow type safety shut-off valve as claimed in claim 6 blocks control system, it is characterised in that：The superpressure
Control valve（21）Quantity be one, the pressure regulator（24）Quantity be one, super pressure control valve（21）Outlet and axis stream
The right space of formula safety shut-off valve（15）Connection；Super pressure control valve（21）Import and pressure regulator（24）Outlet conduit phase
Even.
8. the superpressure of axial-flow type safety shut-off valve as claimed in claim 6 blocks control system, it is characterised in that：The superpressure
Control valve（21）Quantity be two, respectively level-one super pressure control valve（27）With two level super pressure control valve（28）, the pressure regulation
Device（24）Quantity be two, respectively level-one pressure regulator（25）With second voltage regulation device（26）, level-one super pressure control valve（27）With
Two level super pressure control valve（28）Right space of the outlet with axial-flow type safety shut-off valve（15）Connection；Level-one super pressure control valve
（27）Import and level-one pressure regulator（25）Outlet conduit be connected, two level super pressure control valve（28）Import and second voltage regulation device
（26）Outlet conduit be connected.
9. the superpressure of axial-flow type safety shut-off valve as claimed in claim 5 blocks control system, it is characterised in that：The spool
Set（1）On be provided with the window for meeting traffic requirement, the window is for being connected to inlet space（3）And outlet space（18）.
10. the superpressure of axial-flow type safety shut-off valve as claimed in claim 5 blocks control system, it is characterised in that：The valve
Core（5）On be provided with balance hole（2）, the balance hole（2）For balancing inlet space（3）With left part space（8）Pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810769114.0A CN108716558A (en) | 2018-07-13 | 2018-07-13 | Axial-flow type safety shut-off valve and its superpressure block control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810769114.0A CN108716558A (en) | 2018-07-13 | 2018-07-13 | Axial-flow type safety shut-off valve and its superpressure block control system |
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| Publication Number | Publication Date |
|---|---|
| CN108716558A true CN108716558A (en) | 2018-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810769114.0A Pending CN108716558A (en) | 2018-07-13 | 2018-07-13 | Axial-flow type safety shut-off valve and its superpressure block control system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111518597A (en) * | 2020-05-06 | 2020-08-11 | 长沙宁湖机械设备有限公司 | Be used for multistage accuse depressor of natural gas recovery |
| WO2021059014A1 (en) * | 2019-09-25 | 2021-04-01 | Fisher Jeon Gas Equipment (Chengdu) Co., Ltd. | Modular valve system |
| CN112762220A (en) * | 2020-12-25 | 2021-05-07 | 华中科技大学 | Rapid valve opening and closing device and method for large-diameter wind tunnel application |
| CN112797207A (en) * | 2021-03-01 | 2021-05-14 | 四川长仪油气集输设备股份有限公司 | Pilot-operated pipeline explosion positive and negative action axial flow type self-closing valve |
| CN114215946A (en) * | 2021-12-17 | 2022-03-22 | 南通市电站阀门有限公司 | Axial-flow dynamic self-balancing regulating valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021059014A1 (en) * | 2019-09-25 | 2021-04-01 | Fisher Jeon Gas Equipment (Chengdu) Co., Ltd. | Modular valve system |
| US11920688B2 (en) | 2019-09-25 | 2024-03-05 | Fisher Jeon Gas Equipment (Chengdu) Co., Ltd. | Modular valve system |
| CN111518597A (en) * | 2020-05-06 | 2020-08-11 | 长沙宁湖机械设备有限公司 | Be used for multistage accuse depressor of natural gas recovery |
| CN112762220A (en) * | 2020-12-25 | 2021-05-07 | 华中科技大学 | Rapid valve opening and closing device and method for large-diameter wind tunnel application |
| CN112797207A (en) * | 2021-03-01 | 2021-05-14 | 四川长仪油气集输设备股份有限公司 | Pilot-operated pipeline explosion positive and negative action axial flow type self-closing valve |
| CN112797207B (en) * | 2021-03-01 | 2022-09-06 | 四川长仪油气集输设备股份有限公司 | Pilot-operated pipeline explosion positive and negative action axial flow type self-closing valve |
| CN114215946A (en) * | 2021-12-17 | 2022-03-22 | 南通市电站阀门有限公司 | Axial-flow dynamic self-balancing regulating valve |
| CN114215946B (en) * | 2021-12-17 | 2023-12-26 | 南通市电站阀门有限公司 | Axial-flow type dynamic self-balancing regulating valve |
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