CN107061847A - A kind of safety shut-off valve - Google Patents
A kind of safety shut-off valve Download PDFInfo
- Publication number
- CN107061847A CN107061847A CN201710293951.6A CN201710293951A CN107061847A CN 107061847 A CN107061847 A CN 107061847A CN 201710293951 A CN201710293951 A CN 201710293951A CN 107061847 A CN107061847 A CN 107061847A
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- China
- Prior art keywords
- valve
- pilot
- pressure
- pilot valve
- hand
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
- F16K31/363—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor the fluid acting on a piston
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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
- F16K21/00—Fluid-delivery valves, e.g. self-closing valves
- F16K21/04—Self-closing valves, i.e. closing automatically after operation
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
Abstract
The present invention relates to valve technology field, and in particular to a kind of safety shut-off valve.Including：Coordinate with pilot valves, the valve block in control running of hydraulic power oil direction；Coordinate with valve block, the pilot valves in control running of hydraulic power oil direction；Equipped with hydraulic oil, and reaction gate valve is controlled to open or close the single-acting executor of pressure pipeline；Open or close the reaction gate valve of pressure pipeline；The valve block, single-acting executor and pilot valves are respectively connected with by hydraulic pipeline.The present invention uses plug-in control element on valve block, and integrated level is high, improves reliability, reduces the volume, weight and cost of valve, reduce the requirement to working environment, convenient operating maintenance is easy for installation；By manually opened, closed automatically when breaking down, be that pressure pipeline element and Field Force provide safety guarantee without external any energy.
Description
Technical field
The present invention relates to valve technology field, and in particular to a kind of safety shut-off valve.
Background technology
Oil, Gas Industry pressure piping and container can have rupture because of use time length, dielectric corrosion and erosion
Risk.Personal security, environmental pollution may be caused seriously to threaten, the increase with country to safe and environment-friendly attention degree,
At present, oil, natural gas production unit have all put into effect some new policies, and safety and environmental protection are ensured.Each valve production
Producer begins one's study safety shut-off valve technology, the safety valve of specification has been occurred in that currently on the market, conventional having is electronic, gas
Move, surging voluntarily drives this several ways control mode with pipeline pressure, the main purpose of safety shut-off valve be pressure oscillation compared with
When big, the conveying of pipeline medium can be voluntarily blocked, so as to reach protection downstream line, the purpose of equipment safety.These cut safely
Disconnected valve can meet 70% market demand, but still also have on some well stations because condition lacks, it is impossible to meet these equipment and use bar
Part.To reduce the risk in the cost that station is built, reduction production process.
Safety shut-off valve can reduce the loss caused by equipment fault, misoperation, prevent fault spread, be protection pressure
The visual plant of pipe-line equipment, personal security.Initially domestic safety shut-off valve employs electricity, air-liquid joint driving.Pressure is passed
Sensor gathers pressure signal, and PLC circuit controls switch valve with two-position and five-pass to carry out switching manipulation to valve, and valve is held using double acting
Row mechanism band balance bar structure.Its advantage is that control principle is simple, and its shortcoming closes work(due to this scheme poor reliability, fault-free
Can, when there is fire, if after control element any first or valve actuator seal are burnt out, whole system will all be lost
Effect, valve can not just be closed, and there is great potential safety hazard；High is required to explosion-proof technology using electric equipment control, electric spark
The high temperature produced with circuit easily triggers accident；Uninterrupted power source is needed to use, valve can not be operated during power failure；Closing
Pressure-driven is needed when closing, the time is very long；System complex, cost also very high shortcoming.
At the end of the nineties, China has been introduced from the U.S. after new safety cut-off system technology, and this hidden danger is just eliminated,
The major part upside-down mounting reaction gate valve of the system, single-acting executor, safety valve control panel（Safety valve control panel is by guide
Valve, pressure-reducing valve, pressure gauge, filter, relay valve, pilot operated valve device, overflow valve, fast-discharge valve, fuel tank, pump, stop valve, fusible plug, two
The elements such as position tee ball valve, instruction ball）Composition, type of drive have it is pneumatic, surge, gas-liquid links these three modes.Its principle
It is by external gas source（Or hydraulic pressure）Power is provided, pilot valve induction pipe pressure, relay valve control fast-discharge valve is performed to valve
Device pressurize or pressure release come realize control valve switch purpose.Its reliability is higher, when there is fire, and work(is closed with failure
Can, any control element or actuator seal is damaged can automatic-closing valve.Sound assurance has been obtained in safety.
And ground, the keying of storm valve can be controlled simultaneously, and switching signal is also equipped with section control dial and indicates ball, can be with
The on off state of valve is seen on control cabinet.It is a kind of current safety shut-off valve control system most popular in the world,
Also widely applied at home.
The content of the invention
It is an object of the present invention to for problems of the prior art, propose that a kind of integrated level is high, simple to operate
Safety shut-off valve, can automatically be closed when breaking down, without external any energy, be pressure pipeline element and Field Force
Safety guarantee is provided.
To achieve these goals, the technical solution adopted by the present invention is：
A kind of safety shut-off valve, it is characterised in that including：
Coordinate with pilot valves, the valve block in control running of hydraulic power oil direction；
Coordinate with valve block, the pilot valves in control running of hydraulic power oil direction；
Equipped with hydraulic oil, and reaction gate valve is controlled to open or close the single-acting executor of pressure pipeline；
Open or close the reaction gate valve of pressure pipeline；
The valve block, single-acting executor and pilot valves are respectively connected with by hydraulic pipeline.
The valve block includes manual pump, hand valve and accumulator；The input of manual pump passes through passage I and fuel tank interface phase
Even, the output end of manual pump is connected by passage II with accumulator；Hand valve is arranged at the input and fuel tank interface of manual pump
Between, hand valve is also provided between the output end of manual pump and accumulator.
The hand valve is two position three way directional control valve；One end of hand valve is provided with hand valve plectrum, and hand valve plectrum leads to
Torque spring is crossed to be hinged with hand valve；Spring II is provided with the outer wall of the other end end of hand valve.
The single-acting executor includes fuel tank, piston and valve rod, and fuel tank is built with hydraulic oil；Piston is arranged at fuel tank
Top, is provided with spring I between the bottom of piston and the bottom of fuel tank；Valve rod passes through fuel tank, and one end is connected with piston, the other end
It is connected with reaction gate valve.
The reaction gate valve includes flashboard, and the top of flashboard is provided with through hole, and the diameter of through hole is more than or equal to pressure
The diameter of pipeline；The top of flashboard is connected with single-acting executor.
The pilot valves include a high pressure pilot valve and a low-pressure pilot valve, high pressure pilot valve and low-pressure pilot valve
It is bi-bit bi-pass plunger valve, high pressure pilot valve and low-pressure pilot valve are connected with pressure pipeline.
The low-pressure pilot valve includes spring III, pilot valve valve rod, high pressure entry, low-pressure inlet, outlet and pilot valve sense
Ying Duan, spring III and pilot valve valve rod are arranged in low-pressure pilot valve body, and pilot valve valve rod one end is connected with spring III, another
Hold as pilot valve induction end.
The high pressure pilot valve includes spring III, pilot valve valve rod, high pressure entry, low-pressure inlet, outlet and pilot valve sense
Ying Duan, spring III and pilot valve valve rod are arranged in high pressure pilot valve body, and pilot valve valve rod one end is connected with spring III, another
Hold as pilot valve induction end.
Fusible plug is provided with the top of the single-acting executor, fusible plug is connected by hydraulic pipeline with valve block.
Pressure gauge is additionally provided between the output end and single-acting executor of the manual pump.
By adopting the above-described technical solution, the beneficial effects of the invention are as follows：
1st, the present invention is by all control elements and driving element all on valve, and simple in construction, no corollary equipment is required,
Cost is low；Itself oil circuit is short, and system response time and oil return time significantly reduce, and being responsive to valve from system and close needs about 10
Second.Plug-in control element is used on valve block, integrated level is high, improves reliability, reduce the volume of valve, weight and into
This, reduces the requirement to working environment, convenient operating maintenance is easy for installation；By manually opened, closed automatically when breaking down
Close, be that pressure pipeline element and Field Force provide safety guarantee without external any energy.
2nd, the present invention devises fuel tank using the spring-loaded remaining space of peace inside single-acting executor, makes it without extra
Hang a fuel tank outside, make that valve is more succinct, further reduce cost.
3rd, generally, after the failure in downstream is excluded, valve is in the closed state, when needing Open valve, under valve
The pressure of trip is less than the setting value of pilot valve, it is necessary to cut off pilot valve pressure, is directly applied with by-passing valve to single-acting executor
Pressure makes valve opening, could realize that failure is closed by manually closing by-passing valve after pipeline pressure recovers normally.In the present invention
Hand valve using two sections unlatching, can pipeline pressure recover it is normal when automatically reset to closed mode, it is therefore prevented that operating personnel
Forget that closing by-passing valve causes safety cut-off system to fail.
4th, the present invention in valve driving medium reusable edible, do not result in environmental pollution.
Brief description of the drawings
The following drawings is only intended to, in doing schematic illustration and explanation to the present invention, not delimit the scope of the invention.Wherein：
Fig. 1 is schematic structural view of the invention；
Fig. 2 is valve block structure schematic diagram of the present invention；
Fig. 3 is low-pressure pilot valve arrangement schematic diagram of the present invention.
Marked in figure：1st, valve block；2nd, acting gate valves are sent out；3rd, pressure pipeline；4th, flashboard；5th, pilot valves；6th, single-acting is held
Row device；7th, spring I；8th, fuel tank；9th, piston；10th, through hole；11st, fusible plug；12nd, pressure gauge；13rd, valve rod；14th, hydraulic oil；101、
Manual pump；102nd, check valve；103rd, manual pump output terminal；104th, hand valve induction end；105th, spring II；106th, accumulator；
107th, overflow valve；108th, fuel tank interface；109th, hand valve plectrum；110th, torque spring；111st, hand valve；112nd, passage I；113
Passage II；501st, spring III；502nd, high pressure entry；503rd, low-pressure inlet；504th, pilot valve induction end；505th, pilot valve valve rod；
506th, export.
Embodiment
Below in conjunction with the accompanying drawings, the present invention is described in detail.
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.The present invention implementation being generally described and illustrated herein in the accompanying drawings
The component of example can be arranged and designed with a variety of configurations.
Therefore, the detailed description of embodiments of the invention below to providing in the accompanying drawings is not intended to limit claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belongs to the model that the present invention is protected
Enclose.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it further need not be defined and explained in subsequent accompanying drawing.
In the description of the invention, it is necessary to explanation, term " on ", " vertical ", " interior ", the orientation of instruction such as " outer " or
Position relationship be based on orientation shown in the drawings or position relationship, or the orientation usually put when using of the invention product or
Position relationship, or the orientation that usually understands of those skilled in the art or position relationship, are for only for ease of the description present invention
Described with simplifying, rather than indicate or imply that the device or element of meaning there must be specific orientation, with specific orientation structure
Make and operate, therefore be not considered as limiting the invention.In addition, term " first ", " second " etc. are only used for distinguishing description,
And it is not intended that indicating or implying relative importance.
In the description of the invention, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " setting ",
" installation ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or integratedly be connected
Connect；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, can
To be the connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood with concrete condition
Concrete meaning in the present invention.
Embodiment 1
As a kind of preferred embodiment of the present invention, with reference to Figure of description 1, accompanying drawing 2 and accompanying drawing 3, present embodiment discloses one
Safety shut-off valve is planted, the present embodiment includes：
A kind of safety shut-off valve, it is characterised in that including：
Coordinate with pilot valves 5, the valve block 1 of control hydraulic oil 14 flow direction；
Coordinate with valve block 1, the pilot valves 5 of control hydraulic oil 14 flow direction；
Equipped with hydraulic oil 14, and reaction gate valve 2 is controlled to open or close the single-acting executor 6 of pressure pipeline 3；
Open or close the reaction gate valve 2 of pressure pipeline 3；
The valve block 1, single-acting executor 6 and pilot valves 5 are respectively connected with by hydraulic pipeline.
The valve block 1 includes manual pump 101, hand valve 111 and accumulator 106；The input of manual pump 101 passes through passage
I 112 are connected with fuel tank interface 108, and the output end of manual pump 101 is connected by passage II 113 with accumulator 106；Hand valve 111
Be arranged between the input of manual pump 101 and fuel tank interface 108, hand valve 111 be also provided at the output end of manual pump 101 with
Between accumulator 106.
The hand valve 111 is two position three way directional control valve；One end of hand valve 111 is provided with hand valve plectrum 109, pulls
Valve plectrum 109 is hinged by torque spring 110 with hand valve 111；Bullet is provided with the outer wall of the other end end of hand valve 111
Spring II 105.
The single-acting executor 6 includes fuel tank 8, piston 9 and valve rod 13, and fuel tank 8 is built with hydraulic oil 14；Piston 9 is set
The top of fuel tank 8 is placed in, spring I 7 is provided between the bottom of piston 9 and the bottom of fuel tank 8；Valve rod 13 passes through fuel tank 8, one end
It is connected with piston 9, the other end is connected with reaction gate valve 2.
The reaction gate valve 2 includes flashboard 4, and the top of flashboard 4 is provided with through hole 10, the diameter and pressure pipe of through hole 10
The diameter in road 3 is equal；The top of flashboard 4 is connected with single-acting executor 6.The top of flashboard 4 is connected with the bottom of valve rod 13.
The pilot valves 5 include a high pressure pilot valve and a low-pressure pilot valve, high pressure pilot valve and low-pressure pilot
Valve is two-position three way plunger valve, and high pressure pilot valve and low-pressure pilot valve are connected with pressure pipeline 3.
The low-pressure pilot valve includes spring III 501, pilot valve valve rod 505, high pressure entry 502, low-pressure inlet 503, gone out
Mouth 506 and pilot valve induction end 504, spring III 501 and pilot valve valve rod 505 are arranged in low-pressure pilot valve body, pilot valve
The one end of valve rod 505 is connected with spring III 501, and the other end is pilot valve induction end 504, pilot valve induction end 504 and pressure pipeline 3
It is connected.
The high pressure pilot valve includes spring III 501, pilot valve valve rod 505, high pressure entry 502, low-pressure inlet 503, gone out
Mouth 506 and pilot valve induction end 504, spring III 501 and pilot valve valve rod 505 are arranged in high pressure pilot valve body, pilot valve
The one end of valve rod 505 is connected with spring III 501, and the other end is pilot valve induction end 504, pilot valve induction end 504 and pressure pipeline 3
It is connected.
The top of the single-acting executor 6 is provided with fusible plug 11, and fusible plug 11 passes through hydraulic pipeline and the phase of valve block 1
Even.
Pressure gauge 12 is additionally provided between the output end and single-acting executor 6 of the manual pump 101.
The end that the hand valve 111 is provided with the one end of spring II 105 is provided with hand valve induction end 104.
The output end of the manual pump 101 is provided with check valve 102.
The hand valve 111 is two position three way directional control valve, and when hand valve 111 is located at initial position, passage I 112 is with leading to
Road II 113 is connected；After the dextrorotation of hand valve plectrum 109 is turn 90 degrees, the valve rod 111 of hand valve is moved to the left, passage I 112
Disconnected with passage II 113；When induction end 104 is having pressure, hand valve 111 continues in the case where the pressure of valve induction end 104 is promoted
It is moved to the left, hand valve plectrum 109 resets under the elastic force effect of torque spring 110, and passage I 112 keeps disconnected with passage II 113
Open, after the pressure of induction end 104 is released, the valve rod 111 of hand valve moves right, passage I 112 is connected with passage II 113,
Release actuator pressure closes valve door.
The high pressure pilot valve is two-position three way plunger valve, and when the pressure of pilot valve induction end is high, high pressure entry is with going out
Mouth connection；When the pressure of pilot valve induction end is low, low-pressure inlet and outlet.
The low-pressure pilot valve is two-position three way plunger valve, when the pressure of pilot valve induction end 504 is high, low-pressure inlet
503 connect with outlet 506；When the pressure of pilot valve induction end 504 is low, high pressure entry 502 is connected with outlet 506.
The fuel tank 8 of the single-acting executor 6 by hydraulic pipeline respectively with fuel tank interface 109, high pressure pilot valve it is low
Press-in mouth is connected with the high pressure entry 502 of low-pressure pilot valve；The hand valve induction end 104 and the outlet 506 of low-pressure pilot valve
It is connected；High pressure entry of the manual pump output terminal 103 respectively with fusible plug 11 and high pressure pilot valve is connected；The high pressure guide
The outlet of valve is connected with the low-pressure inlet 503 of low-pressure pilot valve.
When needing to open valve, hand valve plectrum 109 is rotated clockwise 90 degree, hand valve 111 is moved to the left, this
Shi Tongdao I 112 disconnects with passage II 113.Now the pressure of pressure pipeline 3 is high, therefore high pressure entry and the outlet of high pressure pilot valve
It is connected, the low-pressure inlet 503 of low-pressure pilot valve is connected with outlet 506.Manual pump 101 is back and forth pressed with hand, by the liquid in fuel tank 8
Force feed 14 is flowed out by the suction passage I 112 of fuel tank interface 108, then the check valve 102 through manual pump 101, and a part passes through passage
II 113 flow into accumulator 106, and another part flows into the top of piston 9 by manual pump output terminal 103.With manual pump 101
Hydraulic oil 14 is constantly conveyed into the top of piston 9, hydraulic oil 14 promotes piston 9 to move downward, and piston 9 is downward with ovable valve stem 13
Motion, valve rod 13 drives flashboard 4 to move downward, and when the through hole 10 on flashboard 4 is overlapped with pressure pipeline 13, valve is beaten completely
Open, stop pressing manual pump 101.
When the pressure of pressure pipeline 3 is in normal range (NR), low-pressure inlet 503 and the outlet 506 of low-pressure pilot valve are connected, high
The high pressure entry and outlet for pressing pilot valve are connected, and hydraulic oil passes sequentially through high pressure, low-pressure pilot valve and flows to hand valve induction end
104, hand valve 111 continues to be moved to the left in the case where the pressure of valve induction end 104 is promoted, and hand valve plectrum 109 is in torque spring 110
Elastic force effect it is lower reset, passage I 112 is remained open with passage II 113, keeps the pressure of actuator, is in valve and is opened
State.
When the pressure of pressure pipeline 3 decrease beyond the setting value of low pressure pilot, the high pressure entry 502 of low-pressure pilot valve with
Outlet 506 is connected, and high pressure pilot valve keeps constant, hand is connect into the pressure releasing of valve induction end 104 to fuel tank, now hand valve
Valve rod 111 is moved right, and passage I 112 is connected with passage II 113, and the pressure of actuator is released, and valve is closed.
When the pressure of pressure pipeline 3 is increased beyond the setting value of high-pressure pilot valve, the low-pressure inlet of high pressure pilot valve is with going out
Mouth connection, low-pressure pilot valve keeps constant, and hand is connect into the pressure releasing of valve induction end 104 to the valve rod of fuel tank, now hand valve
111 are moved right, and passage I 112 is connected with passage II 113, and the pressure of actuator is released, and valve is closed.
Embodiment 2
As a kind of preferred embodiment of the present invention, with reference to Figure of description 1, accompanying drawing 2 and accompanying drawing 3, present embodiment discloses one
Safety shut-off valve is planted, the present embodiment includes：
A kind of safety shut-off valve, it is characterised in that including：
Coordinate with pilot valves 5, the valve block 1 of control hydraulic oil 14 flow direction；
Coordinate with valve block 1, the pilot valves 5 of control hydraulic oil 14 flow direction；
Equipped with hydraulic oil 14, and reaction gate valve 2 is controlled to open or close the single-acting executor 6 of pressure pipeline 3；
Open or close the reaction gate valve 2 of pressure pipeline 3；
The valve block 1, single-acting executor 6 and pilot valves 5 are respectively connected with by hydraulic pipeline.
The valve block 1 includes manual pump 101, hand valve 111 and accumulator 106；The input of manual pump 101 passes through passage
I 112 are connected with fuel tank interface 108, and the output end of manual pump 101 is connected by passage II 113 with accumulator 106；Hand valve 111
Be arranged between the input of manual pump 101 and fuel tank interface 108, hand valve 111 be also provided at the output end of manual pump 101 with
Between accumulator 106.
The hand valve 111 is two position three way directional control valve；One end of hand valve 111 is provided with hand valve plectrum 109, pulls
Valve plectrum 109 is hinged by torque spring 110 with hand valve 111；Bullet is provided with the outer wall of the other end end of hand valve 111
Spring II 105.
The single-acting executor 6 includes fuel tank 8, piston 9 and valve rod 13, and fuel tank 8 is built with hydraulic oil 14；Piston 9 is set
The top of fuel tank 8 is placed in, spring I 7 is provided between the bottom of piston 9 and the bottom of fuel tank 8；Valve rod 13 passes through fuel tank 8, one end
It is connected with piston 9, the other end is connected with reaction gate valve 2.
The reaction gate valve 2 includes flashboard 4, and the top of flashboard 4 is provided with through hole 10, and the diameter of through hole 10 is more than pressure
The diameter of pipeline 3；The top of flashboard 4 is connected with single-acting executor 6.
The pilot valves 5 include a high pressure pilot valve and a low-pressure pilot valve, high pressure pilot valve and low-pressure pilot
Valve is two-position three way plunger valve, and high pressure pilot valve and low-pressure pilot valve are connected with pressure pipeline 3.
The low-pressure pilot valve includes spring III 501, pilot valve valve rod 505, high pressure entry 502, low-pressure inlet 503, gone out
Mouth 506 and pilot valve induction end 504, spring III 501 and pilot valve valve rod 505 are arranged in low-pressure pilot valve body, pilot valve
The one end of valve rod 505 is connected with spring III 501, and the other end is pilot valve induction end 504, pilot valve induction end 504 and pressure pipeline 3
It is connected.
The high pressure pilot valve includes spring III 501, pilot valve valve rod 505, high pressure entry 502, low-pressure inlet 503, gone out
Mouth 506 and pilot valve induction end 504, spring III 501 and pilot valve valve rod 505 are arranged in high pressure pilot valve body, pilot valve
The one end of valve rod 505 is connected with spring III 501, and the other end is pilot valve induction end 504, pilot valve induction end 504 and pressure pipeline 3
It is connected.
The top of the single-acting executor 6 is provided with fusible plug 11, and fusible plug 11 passes through hydraulic pipeline and the phase of valve block 1
Even.
Pressure gauge 12 is additionally provided between the output end and single-acting executor 6 of the manual pump 101.
Embodiment 3
As a kind of preferred embodiment of the present invention, with reference to Figure of description 1, accompanying drawing 2 and accompanying drawing 3, present embodiment discloses one
Safety shut-off valve is planted, the present embodiment includes：
A kind of safety shut-off valve, it is characterised in that including：
Coordinate with pilot valves 5, the valve block 1 of control hydraulic oil 14 flow direction；
Coordinate with valve block 1, the pilot valves 5 of control hydraulic oil 14 flow direction；
Equipped with hydraulic oil 14, and reaction gate valve 2 is controlled to open or close the single-acting executor 6 of pressure pipeline 3；
Open or close the reaction gate valve 2 of pressure pipeline 3；
The valve block 1, single-acting executor 6 and pilot valves 5 are respectively connected with by hydraulic pipeline.
The valve block 1 includes manual pump 101, hand valve 111 and accumulator 106；The input of manual pump 101 passes through passage
I 112 are connected with fuel tank interface 108, and the output end of manual pump 101 is connected by passage II 113 with accumulator 106；Hand valve 111
Be arranged between the input of manual pump 101 and fuel tank interface 108, hand valve 111 be also provided at the output end of manual pump 101 with
Between accumulator 106.
The hand valve 111 is two position three way directional control valve；One end of hand valve 111 is provided with hand valve plectrum 109, pulls
Valve plectrum 109 is hinged by torque spring 110 with hand valve 111；Bullet is provided with the outer wall of the other end end of hand valve 111
Spring II 105.
The single-acting executor 6 includes fuel tank 8, piston 9 and valve rod 13, and fuel tank 8 is built with hydraulic oil 14；Piston 9 is set
The top of fuel tank 8 is placed in, spring I 7 is provided between the bottom of piston 9 and the bottom of fuel tank 8；Valve rod 13 passes through fuel tank 8, one end
It is connected with piston 9, the other end is connected with reaction gate valve 2.
The reaction gate valve 2 includes flashboard 4, and the top of flashboard 4 is provided with through hole 10, and the diameter of through hole 10 is more than pressure
The diameter of pipeline 3；The top of flashboard 4 is connected with single-acting executor 6.
The pilot valves 5 include a high pressure pilot valve and a low-pressure pilot valve, high pressure pilot valve and low-pressure pilot
Valve is two-position three way plunger valve, and high pressure pilot valve and low-pressure pilot valve are connected with pressure pipeline 3.
The low-pressure pilot valve includes spring III 501, pilot valve valve rod 505, high pressure entry 502, low-pressure inlet 503, gone out
Mouth 506 and pilot valve induction end 504, spring III 501 and pilot valve valve rod 505 are arranged in low-pressure pilot valve body, pilot valve
The one end of valve rod 505 is connected with spring III 501, and the other end is pilot valve induction end 504, pilot valve induction end 504 and pressure pipeline 3
It is connected.
The high pressure pilot valve includes spring III 501, pilot valve valve rod 505, high pressure entry 502, low-pressure inlet 503, gone out
Mouth 506 and pilot valve induction end 504, spring III 501 and pilot valve valve rod 505 are arranged in high pressure pilot valve body, pilot valve
The one end of valve rod 505 is connected with spring III 501, and the other end is pilot valve induction end 504, pilot valve induction end 504 and pressure pipeline 3
It is connected.
The top of the single-acting executor 6 is provided with fusible plug 11, and fusible plug 11 passes through hydraulic pipeline and the phase of valve block 1
Even.
Pressure gauge 12 is additionally provided between the output end and single-acting executor 6 of the manual pump 101.
The pilot valves 5 are arranged at the top of valve block 1, are fixedly connected with valve block 1.
Embodiment 4
As a kind of preferred embodiment of the present invention, with reference to Figure of description 1, accompanying drawing 2 and accompanying drawing 3, present embodiment discloses one
Safety shut-off valve is planted, the present embodiment includes：
A kind of safety shut-off valve, it is characterised in that including：
Coordinate with pilot valves 5, the valve block 1 of control hydraulic oil 14 flow direction；
Coordinate with valve block 1, the pilot valves 5 of control hydraulic oil 14 flow direction；
Equipped with hydraulic oil 14, and reaction gate valve 2 is controlled to open or close the single-acting executor 6 of pressure pipeline 3；
Open or close the reaction gate valve 2 of pressure pipeline 3；
The valve block 1, single-acting executor 6 and pilot valves 5 are respectively connected with by hydraulic pipeline.
Embodiment described above only expresses the embodiment of the application, and it describes more specific and detailed, but simultaneously
Therefore the limitation to the application protection domain can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, on the premise of technical scheme design is not departed from, various modifications and improvements can be made, these belong to this
The protection domain of application.
Claims (10)
1. a kind of safety shut-off valve, it is characterised in that including：
With pilot valves（5）Coordinate, control hydraulic oil（14）The valve block of flow direction（1）；
With valve block（1）Coordinate, control hydraulic oil（14）The pilot valves of flow direction（5）；
Equipped with hydraulic oil（14）, and control reaction gate valve（2）Open or close pressure pipeline（3）Single-acting executor（6）；
Open or close pressure pipeline（3）Reaction gate valve（2）；
The valve block（1）, single-acting executor（6）And pilot valves（5）It is respectively connected with by hydraulic pipeline.
2. safety shut-off valve according to claim 1, it is characterised in that：The valve block（1）Including manual pump（101）, hand
Draw valve（111）And accumulator（106）；Manual pump（101）Input pass through passage I（112）With fuel tank interface（108）It is connected,
Manual pump（101）Output end pass through passage II（113）With accumulator（106）It is connected；Hand valve（111）It is arranged at manual pump
（101）Input and fuel tank interface（108）Between, hand valve（111）It is also provided at manual pump（101）Output end and accumulation of energy
Device（106）Between.
3. safety shut-off valve according to claim 2, it is characterised in that：The hand valve（111）Commutated for two-position three way
Valve；Hand valve（111）One end be provided with hand valve plectrum（109）, hand valve plectrum（109）Pass through torque spring（110）With
Hand valve（111）It is hinged；Hand valve（111）Other end end outer wall on be provided with spring II（105）.
4. safety shut-off valve according to claim 1, it is characterised in that：The single-acting executor（6）Including fuel tank
（8）, piston（9）And valve rod（13）, fuel tank（8）Built with hydraulic oil（14）；Piston（9）It is arranged at fuel tank（8）Top, piston
（9）Bottom and fuel tank（8）Bottom between be provided with spring I（7）；Valve rod（13）Through fuel tank（8）, one end and piston（9）
It is connected, the other end and reaction gate valve（2）It is connected.
5. safety shut-off valve according to claim 1, it is characterised in that：The reaction gate valve（2）Including flashboard（4）,
Flashboard（4）Top be provided with through hole（10）, through hole（10）Diameter be more than or equal to pressure pipeline（3）Diameter；Flashboard（4）
Top and single-acting executor（6）It is connected.
6. safety shut-off valve according to claim 1, it is characterised in that：The pilot valves（5）Including a high pressure elder generation
Pilot valve and a low-pressure pilot valve, high pressure pilot valve and low-pressure pilot valve are bi-bit bi-pass plunger valve, high pressure pilot valve and low
Press pilot valve and pressure pipeline（3）It is connected.
7. safety shut-off valve according to claim 6, it is characterised in that：The low-pressure pilot valve includes spring III（501）、
Pilot valve valve rod（505）, high pressure entry（502）, low-pressure inlet（503）, outlet（506）With pilot valve induction end（504）, spring
Ⅲ（501）With pilot valve valve rod（505）It is arranged in low-pressure pilot valve body, pilot valve valve rod（505）One end and spring III
（501）It is connected, the other end is pilot valve induction end（504）.
8. safety shut-off valve according to claim 6, it is characterised in that：The high pressure pilot valve includes spring III（501）、
Pilot valve valve rod（505）, high pressure entry（502）, low-pressure inlet（503）, outlet（506）With pilot valve induction end（504）, spring
Ⅲ（501）With pilot valve valve rod（505）It is arranged in high pressure pilot valve body, pilot valve valve rod（505）One end and spring III
（501）It is connected, the other end is pilot valve induction end（504）.
9. safety shut-off valve according to claim 1, it is characterised in that：The single-acting executor（6）Top set
There is fusible plug（11）, fusible plug（11）Pass through hydraulic pipeline and valve block（1）It is connected.
10. safety shut-off valve according to claim 1, it is characterised in that：The manual pump（101）Output end and nonoculture
Use actuator（6）Between be additionally provided with pressure gauge（12）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710293951.6A CN107061847A (en) | 2017-04-28 | 2017-04-28 | A kind of safety shut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710293951.6A CN107061847A (en) | 2017-04-28 | 2017-04-28 | A kind of safety shut-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107061847A true CN107061847A (en) | 2017-08-18 |
Family
ID=59605231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710293951.6A Pending CN107061847A (en) | 2017-04-28 | 2017-04-28 | A kind of safety shut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107061847A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021056613A1 (en) * | 2019-09-25 | 2021-04-01 | 江苏瑞朗博机械设备有限公司 | Device capable of quickly and automatically closing and emergency shutoff device at natural gas wellhead |
| CN112682562A (en) * | 2020-12-31 | 2021-04-20 | 重庆磐恒阀门有限公司 | Gas pressure control gas cut-off valve |
| CN113202937A (en) * | 2021-04-30 | 2021-08-03 | 中国科学院合肥物质科学研究院 | Prevent palirrhea automatic of molecular pump backing pump and play closed differential pressure valve |
| CN115929962A (en) * | 2023-01-05 | 2023-04-07 | 无锡斯考尔自动控制设备有限公司 | Emergency cut-off valve |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4167262A (en) * | 1976-10-12 | 1979-09-11 | Hunt Valve Co., Inc. | Pilot actuated valve |
| CN1103146A (en) * | 1993-08-02 | 1995-05-31 | 哈伊德罗鲁克斯股份有限公司 | Pilot stage for pressure control valves |
| CN200961718Y (en) * | 2006-10-31 | 2007-10-17 | 重庆市正华钻采设备有限公司 | Safe and automatic block valve for petroleum natural gas well port |
| CN201292820Y (en) * | 2008-12-01 | 2009-08-19 | 什邡慧丰采油机械有限责任公司 | Hydraulic cut off control device for well site safety |
| US20120085601A1 (en) * | 2010-10-12 | 2012-04-12 | Honda Motor Co., Ltd. | Shut-off valve for hydraulic system |
| JP2013155862A (en) * | 2012-02-01 | 2013-08-15 | Shimadzu Corp | Preferential valve |
| CN203963118U (en) * | 2014-07-24 | 2014-11-26 | 苏州通衢机电设备有限公司 | Hand valve |
| CN104180055A (en) * | 2014-08-19 | 2014-12-03 | 郑子叶 | Pilot control gate valve |
| CN206816928U (en) * | 2017-04-28 | 2017-12-29 | 德阳正光石油机械制造有限公司 | A kind of safety shut-off valve |
-
2017
- 2017-04-28 CN CN201710293951.6A patent/CN107061847A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4167262A (en) * | 1976-10-12 | 1979-09-11 | Hunt Valve Co., Inc. | Pilot actuated valve |
| CN1103146A (en) * | 1993-08-02 | 1995-05-31 | 哈伊德罗鲁克斯股份有限公司 | Pilot stage for pressure control valves |
| CN200961718Y (en) * | 2006-10-31 | 2007-10-17 | 重庆市正华钻采设备有限公司 | Safe and automatic block valve for petroleum natural gas well port |
| CN201292820Y (en) * | 2008-12-01 | 2009-08-19 | 什邡慧丰采油机械有限责任公司 | Hydraulic cut off control device for well site safety |
| US20120085601A1 (en) * | 2010-10-12 | 2012-04-12 | Honda Motor Co., Ltd. | Shut-off valve for hydraulic system |
| JP2013155862A (en) * | 2012-02-01 | 2013-08-15 | Shimadzu Corp | Preferential valve |
| CN203963118U (en) * | 2014-07-24 | 2014-11-26 | 苏州通衢机电设备有限公司 | Hand valve |
| CN104180055A (en) * | 2014-08-19 | 2014-12-03 | 郑子叶 | Pilot control gate valve |
| CN206816928U (en) * | 2017-04-28 | 2017-12-29 | 德阳正光石油机械制造有限公司 | A kind of safety shut-off valve |
Non-Patent Citations (1)
| Title |
|---|
| 曾玉斌等: "SSVH井口安全液压截断系统", 《石油矿场机械》, vol. 39, no. 7, pages 69 - 72 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021056613A1 (en) * | 2019-09-25 | 2021-04-01 | 江苏瑞朗博机械设备有限公司 | Device capable of quickly and automatically closing and emergency shutoff device at natural gas wellhead |
| CN112682562A (en) * | 2020-12-31 | 2021-04-20 | 重庆磐恒阀门有限公司 | Gas pressure control gas cut-off valve |
| CN113202937A (en) * | 2021-04-30 | 2021-08-03 | 中国科学院合肥物质科学研究院 | Prevent palirrhea automatic of molecular pump backing pump and play closed differential pressure valve |
| CN115929962A (en) * | 2023-01-05 | 2023-04-07 | 无锡斯考尔自动控制设备有限公司 | Emergency cut-off valve |
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