CN104864136A - Electromagnetic control emergency shut-off valve - Google Patents
Electromagnetic control emergency shut-off valve Download PDFInfo
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- CN104864136A CN104864136A CN201510177844.8A CN201510177844A CN104864136A CN 104864136 A CN104864136 A CN 104864136A CN 201510177844 A CN201510177844 A CN 201510177844A CN 104864136 A CN104864136 A CN 104864136A
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- electromagnetic control
- valve
- cutoff valves
- emergeny cutoff
- spring
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Classifications
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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
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/044—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with more than one spring
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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
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/048—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded combined with other safety valves, or with pressure control devices
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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
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0486—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with mechanical actuating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/047—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
- F16K31/1221—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston one side of the piston being spring-loaded
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention provides an electromagnetic control emergency shut-off valve. The electromagnetic control emergency shut-off valve comprises a main valve element (3), a valve seat (20) and a valve body (1); the main valve element (3) and the valve seat (20) are arranged in the valve body (1); the main valve element (3) is in sealed connection with the inner wall of the valve body (1); a sealed upper valve cavity (32) is formed in the upper part of the main valve element (3); a pressure relief channel (37) for communicating the upper valve cavity (32) and an outlet end (35) of the electromagnetic control emergency shut-off valve is formed in the side wall of the valve body (7); the electromagnetic control emergency shut-off valve further comprises an elastic component capable of allowing the main valve element (3) to reset and a pressure relief electromagnetic valve assembly capable of controlling the opening and closing of the pressure relief channel (37). When the pressure of a gas delivery pipe line is abnormal, the electromagnetic control emergency shut-off valve can realize the purpose of automatically shutting off the gas delivery pipe line in an emergency situation.
Description
Technical field
The present invention relates to oil production equipment technical field, particularly a kind of Electromagnetic Control Emergeny Cutoff Valves.
Background technique
Along with the increase of scale of building is produced in gas field, field, gas field well number gets more and more, artificial open and close well can not adapt to this situation, in order to effectively manage these gas wells, the technical research such as well head data capture, wireless transmission, telecontrol, emergency cut-off and electronics patrol are carried out, supportingly define field gas well mouth intelligence production control system, for gas well effective monitoring and digital management provide technical support.Wherein remote control technology and urgent Truncation Technique are two emphasis.
Field gas well adopts Downhole Choking Technology to be when downhole choke lost efficacy, and when flow line breaks and waits super, under-voltage accident, needs rapid cut-out well head source of the gas, prevents a large amount of leakages of downstream line superpressure or rock gas; Field gas well quantity gets more and more, and scene needs to carry out long-range open and close operation to reduce personnel's recruitment to gas well.
Low yield gas well quantity constantly increases, and causes gas production to reduce, and solves and make good use of the problem that low yield gas well liquid loading becomes in the urgent need to address.According to the needs of reservoir gas well management, carry out the research of high-voltage explosion-proof Electromagnetic Control Emergeny Cutoff Valves.
Existing telecontrol Emergeny Cutoff Valves adopts 12V driven by Brush-Less DC motor gear, rackwork realizes long-range open and close well; When promptly blocking, sensor push rod promotes balancing pole and stirs equilibrium block rotation, and release control bar, makes the components such as tooth bar lose support, and main spring promotes flap and cuts off pipeline air-flow.
Adopt such scheme, Oil of Oil Pipeline must be met and force down in 5MPa, when pipeline oil pressure is higher than 5MPa, the disabler of long-range open and close well, the frozen block situation that microthermal climate occurs, this valve is long-range open and close afunction substantially; Emergency cut-off mechanism-trouble point is more, and the power that sensor push rod promotes balancing pole is unstable, and emergency cut-off force value needs often to check, and adds personnel's recruitment.
Summary of the invention
In order to solve the problem needing additional power to supply when existing Emergeny Cutoff Valves runs, the invention provides a kind of Electromagnetic Control Emergeny Cutoff Valves, this Electromagnetic Control Emergeny Cutoff Valves, when gas transmission line appearance of abnormal pressure, can play the object of emergency cut-off gas transmission line automatically.
The technical solution adopted for the present invention to solve the technical problems is: a kind of Electromagnetic Control Emergeny Cutoff Valves, comprise main valve plug, valve seat and valve body, main valve plug and valve seat are arranged in valve body, main valve plug is connected with the inner wall sealing of valve body, the top of main valve plug is provided with closed uuper valve chamber, be provided with the pressure release passage of the outlet end that can be communicated with uuper valve chamber and this Electromagnetic Control Emergeny Cutoff Valves in the sidewall of valve body, described Electromagnetic Control Emergeny Cutoff Valves also comprises the elastic member for making main valve plug reset and can control the pressure release electromagnetic valve assembly of pressure release passage switch.
This pressure release electromagnetic valve assembly comprises off-load Electrical heads and can the pressure releasing valve core of shutoff pressure release passage, be connected by spring between pressure releasing valve core with the electromagnet core of off-load Electrical heads, when off-load Electrical heads attracts pressure releasing valve core, pressure releasing valve core can move and make pressure release passage conducting.
Described Electromagnetic Control Emergeny Cutoff Valves also comprises lifting arm, the lower end of lifting arm is fixedly connected with main valve plug, the upper end of lifting arm is arranged on outside valve body, and lifting arm is connected with valve seal by valve gap, and lifting arm is connected with the locking framework for making main valve plug be fixed on enable possition.
This locking framework comprises and is set in shift fork outside lifting arm and lock sleeve from the top down successively, shift fork and lock sleeve are tubular, lock sleeve is arranged on the top of valve gap, ball is provided with between lock sleeve and valve gap, the lower end of lock sleeve is provided with lower inclined plane ball can being pushed to lifting arm axis, lifting arm is provided with the annular groove for clamping ball, and the degree of depth of this annular groove is less than the radius of ball, and this locking framework also comprises the reset assembly resetted for lock sleeve.
This reset assembly comprises gland and spring, and gland is set in outside shift fork, and the position of gland is fixed relative to valve body, and spring housing is located at outside shift fork and lock sleeve, and the upper end of spring abuts with gland, and the lower end of spring abuts with the annular projection outside lock sleeve.
Valve body is fixed with the supporting base of tubular, shift fork, lock sleeve, gland and spring are all set in supporting base, gland is fixedly connected with supporting base, this locking framework also comprises seesaw and the first roll wheel assembly, seesaw and the first roll wheel assembly are all arranged on outside supporting base, seesaw is arranged in the horizontal direction, first roll wheel assembly comprises the first lever vertically arranged, one end of seesaw is connected with shift fork, this the first lever is arranged on the below of the other end of seesaw, the other end of seesaw is provided with towards the protuberance of this first lever, the middle part of seesaw is provided with bearing pin, seesaw can be that axle rotates with bearing pin, the lower end of this first lever is provided with rotating shaft, this first lever can with this rotating shaft for axle rotates, first roll wheel assembly and shift fork can support the two ends of seesaw respectively and the two ends of seesaw are balanced.
Described Electromagnetic Control Emergeny Cutoff Valves also comprises electromagnetism closing assembly, this electromagnetism closing assembly comprises closes Electrical heads and the second roll wheel assembly, second roll wheel assembly comprises the second lever, one end of this second lever is hinged by connecting pin with the electromagnet core of closing Electrical heads, the other end of this second lever and the middle part of this first lever hinged, close Electrical heads can make this first lever rotation and break the balance at seesaw two ends.
Described Electromagnetic Control Emergeny Cutoff Valves also comprises superpressure and under-voltage cylinder, this superpressure and under-voltage cylinder comprise cylinder barrel, cylinder piston rod and atmospheric pressure cavity is provided with in cylinder barrel, the middle part of one end of cylinder piston rod and this first lever is hinged, the other end of cylinder piston rod is connected with pressure sensing cell, the first measuring pressure passage and the second measuring pressure passage is provided with in valve body, one end of first measuring pressure passage is communicated with atmospheric pressure cavity, the other end of the first measuring pressure passage is communicated with the entry end of this Electromagnetic Control Emergeny Cutoff Valves, one end of second measuring pressure passage is communicated with atmospheric pressure cavity, the other end of the second measuring pressure passage is communicated with the outlet end of this Electromagnetic Control Emergeny Cutoff Valves, cylinder piston rod can make this first lever rotation and break the balance at seesaw two ends.
This pressure sensing cell comprises bonnet sheathed successively from outside to inside, superpressure Regulation spring, spring seat and under-voltage Regulation spring, bonnet and spring seat are tubular, one end of bonnet is fixedly connected with cylinder barrel, superpressure adjusting nut is provided with in the other end of bonnet, bonnet is threaded with superpressure adjusting nut, one end of superpressure Regulation spring abuts with superpressure adjusting nut, the other end of superpressure Regulation spring abuts with the flange outside spring seat one end, under-voltage adjusting nut is provided with in the other end of spring seat, under-voltage adjusting nut is threaded with spring seat, one end of under-voltage Regulation spring abuts with the other end of cylinder piston rod, the other end of under-voltage Regulation spring abuts with under-voltage adjusting nut.
Described Electromagnetic Control Emergeny Cutoff Valves also comprises pull bar, the axis of pull bar and the dead in line of lifting arm, pull bar is arranged on the below of lifting arm, the upper end of pull bar is fixedly connected with main valve plug, the lower end of pull bar is arranged on outside valve body, pull bar is connected with valve seal, and this elastic member is be set in the main spring that pull bar can be made to reset outside pull bar, and this main spring is arranged on outside valve body.
The invention has the beneficial effects as follows, this Electromagnetic Control Emergeny Cutoff Valves, when gas transmission line appearance of abnormal pressure, can play the object of emergency cut-off gas transmission line automatically.This Electromagnetic Control Emergeny Cutoff Valves utilizes pipe natural gas as major impetus, can realize remote high-voltage open and close and urgent super, undervoltage function; Not by other auxiliary external force during emergency cut-off, more reliable and more stable than the emergency cut-off structure of the mechanical self-powering type of tradition, nitrogen auxiliary device.When appearance is super, after under-voltage emergency cut-off, valve is in buttoned-up status, guarantees that site safety is produced.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Fig. 1 be Electromagnetic Control Emergeny Cutoff Valves in off position time sectional view.
Fig. 2 is the sectional view along A-A direction in Fig. 1.
Fig. 3 is the schematic diagram of this locking framework part.
Fig. 4 is the sectional view of Electromagnetic Control Emergeny Cutoff Valves when opening state.
Fig. 5 is the plan view of Electromagnetic Control Emergeny Cutoff Valves.
Fig. 6 is the schematic diagram of Electromagnetic Control Emergeny Cutoff Valves when superpressure emergency cut-off state.
Fig. 7 is the schematic diagram of Electromagnetic Control Emergeny Cutoff Valves when under-voltage emergency cut-off state.
Fig. 8 is the schematic diagram at this pressure release electromagnetic valve assembly position.
Wherein 1. valve bodies, 2. the first measuring pressure passage, 3. main valve plug, 4. superpressure Regulation spring, 5. under-voltage Regulation spring, 6. under-voltage adjusting nut, 7. superpressure adjusting nut, 8. cylinder piston rod, 9. motor, 10. piston brace rod, 11. first roll wheel assemblies, 12. seesaws, 13. bearing pins, 14. shift forks, 15. springs, 16. lock sleeves, 17. balls, 18. valve gaps, 19. close Electrical heads, 20. valve seats, 21. second roll wheel assemblies, 22. lifting arms, 23. cam mechanisms, 24. off-load Electrical heads, 25. main springs, 26. spring seats, 27. bonnets, 28. cylinder barrels, 29. sealing glands, 30. cylinder glands, 31. pull bars, 32. uuper valve chambers, 33. connecting pins, 34. electromagnet cores, 35. outlet end, 36. entry ends, 37. pressure release passages, 38. pressure releasing valve cores, 39. glands, 40. supporting bases, 41. atmospheric pressure cavities, 42. second measuring pressure passages.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
A kind of Electromagnetic Control Emergeny Cutoff Valves, comprise main valve plug 3, valve seat 20 and valve body 1, main valve plug 3 and valve seat 20 are arranged in valve body 1, main valve plug 3 is connected with the inner wall sealing of valve body 1, the top of main valve plug 3 is provided with closed uuper valve chamber 32, the pressure release passage 37 of the outlet end 35 that can be communicated with uuper valve chamber 32 and this Electromagnetic Control Emergeny Cutoff Valves is provided with in the sidewall of valve body 1, described Electromagnetic Control Emergeny Cutoff Valves also comprises the elastic member for making main valve plug 3 reset and can control the pressure release electromagnetic valve assembly of pressure release passage 37 switch, as shown in Figures 1 to 5.
When this Electromagnetic Control Emergeny Cutoff Valves is in closed condition, main valve plug 3 is tightly connected with the valve seat 20 of annular, be not communicated with between the outlet end 35 of this Electromagnetic Control Emergeny Cutoff Valves and entry end 36, uuper valve chamber 32 can not be communicated with outlet end 35, uuper valve chamber 32 can not be communicated with entry end 36, as depicted in figs. 1 and 2.When this Electromagnetic Control Emergeny Cutoff Valves is in opening state, main valve plug 3 is separated with valve seat 20, and the outlet end 35 of this Electromagnetic Control Emergeny Cutoff Valves is communicated with entry end 36, and uuper valve chamber 32 can not be communicated with outlet end 35, uuper valve chamber 32 can not be communicated with entry end 36, as shown in Figure 4.
In the present embodiment, this pressure release electromagnetic valve assembly comprises off-load Electrical heads 24 and can the pressure releasing valve core 38 of shutoff pressure release passage 37, be connected by spring between pressure releasing valve core 38 with the electromagnet core of off-load Electrical heads 24, pressure releasing valve core 38 can be attracted when off-load Electrical heads 24 is energized, pressure releasing valve core 38 is moved up and makes pressure release passage 37 conducting, as shown in Fig. 2 and Fig. 8.
Described Electromagnetic Control Emergeny Cutoff Valves also comprises lifting arm 22, the axis of lifting arm 22 is vertically arranged, the lower end of lifting arm 22 is fixedly connected with main valve plug 3, the upper end of lifting arm 22 is arranged on outside valve body 1, lifting arm 22 is tightly connected by valve gap 18 and valve body 1, and lifting arm 22 is connected with the locking framework for making main valve plug 3 be fixed on enable possition.
This locking framework comprises and is set in shift fork 14 outside lifting arm 22 and lock sleeve 16 from the top down successively, shift fork 14 and lock sleeve 16 are tubular, lock sleeve 16 is arranged on the top of valve gap 18, ball 17 is provided with between lock sleeve 16 and valve gap 18, the lower end of lock sleeve 16 is provided with lower inclined plane ball 17 can being pushed to lifting arm 22 axis, lifting arm 22 is provided with the annular groove for clamping ball 17, the degree of depth of this annular groove is less than the radius of ball 17, and this locking framework also comprises the reset assembly resetted for lock sleeve 16.This reset assembly comprises gland 39 and spring 15, gland 39 is set in outside shift fork 14, the position of gland 39 is fixed relative to valve body 1, spring 15 is set in outside shift fork 14 and lock sleeve 16, the upper end of spring 15 abuts with gland 39, the lower end of spring 15 abuts with the annular projection outside lock sleeve 16, as shown in Figure 3.
Valve body 1 is fixed with the supporting base 40 of tubular, shift fork 14, lock sleeve 16, gland 39 and spring 15 are all set in supporting base 40, gland 39 is fixedly connected with supporting base 40, this locking framework also comprises seesaw 12 and the first roll wheel assembly 11, seesaw 12 and the first roll wheel assembly 11 are all arranged on outside supporting base 40, seesaw 12 is arranged in the horizontal direction, first roll wheel assembly 11 comprises the first lever vertically arranged, as shown in Figure 3, right-hand member and the shift fork 14 of seesaw 12 are hinged, seesaw 12 and shift fork 14 can interlocks, this the first lever is arranged on the below of the left end of seesaw 12, the left end of seesaw 12 is provided with towards the lower protuberance of this first lever, the upper end of this first lever can abut with this protuberance, the middle part of seesaw 12 is provided with bearing pin 13, seesaw 12 can with bearing pin 13 for axle rotates, the lower end of this first lever is provided with rotating shaft, the upper end of this first lever is provided with roller, this first lever can with this rotating shaft for axle rotates, first roll wheel assembly 11 and shift fork 14 can support the two ends of seesaw 12 respectively and the two ends of seesaw 12 are balanced, namely as shown in Figure 3 and Figure 4, when this Electromagnetic Control Emergeny Cutoff Valves is in opening state, first roll wheel assembly 11 gives seesaw 12 left end one power upwards, right-hand member one power upwards of seesaw 12 given by shift fork 14, these two power make the two ends of seesaw 12 reach balance, seesaw 12 is in horizontal stable state.
Described Electromagnetic Control Emergeny Cutoff Valves also comprises electromagnetism closing assembly, this electromagnetism closing assembly comprises closes Electrical heads 19 and the second roll wheel assembly 21, second roll wheel assembly 21 comprises the second lever, one end of this second lever is hinged by connecting pin 33 with the electromagnet core 34 of closing Electrical heads 19, the other end of this second lever and the middle part of this first lever hinged, the other end of this second lever is also provided with roller, as shown in Figure 5, close Electrical heads 19 can make this second lever rotation and then drive this first lever rotation and break the balance at seesaw 12 two ends.
Described Electromagnetic Control Emergeny Cutoff Valves also comprises superpressure and under-voltage cylinder, this superpressure and under-voltage cylinder comprise cylinder barrel 28, cylinder piston rod 8 and atmospheric pressure cavity 41 is provided with in cylinder barrel 28, as shown in Figure 3, the right-hand member of cylinder piston rod 8 is hinged by the middle part of this first lever of piston brace rod 10 and the first roll wheel assembly 11, the left end of cylinder piston rod 8 is connected with pressure sensing cell, the first measuring pressure passage 2 and the second measuring pressure passage 42 is provided with in valve body 1, one end of first measuring pressure passage 2 is communicated with atmospheric pressure cavity 41, the other end of the first measuring pressure passage 2 is communicated with the entry end 36 of this Electromagnetic Control Emergeny Cutoff Valves, one end of second measuring pressure passage 42 is communicated with atmospheric pressure cavity 41, the other end of the second measuring pressure passage 42 is communicated with the outlet end 35 of this Electromagnetic Control Emergeny Cutoff Valves, when the pressure in described Electromagnetic Control Emergeny Cutoff Valves exceed scope is set time, cylinder piston rod 8 can move left and right and makes this first lever rotation thus break the balance at seesaw 12 two ends.
In the present embodiment, this pressure sensing cell comprises bonnet 27 sheathed successively from outside to inside, superpressure Regulation spring 4, spring seat 26 and under-voltage Regulation spring 5, bonnet 27 and spring seat 26 are tubular, the right-hand member of bonnet 27 is fixedly connected with cylinder barrel 28, superpressure adjusting nut 7 is provided with in the left end of bonnet 27, bonnet 27 is threaded with superpressure adjusting nut 7, the left end of superpressure Regulation spring 4 abuts with superpressure adjusting nut 7, the right-hand member of superpressure Regulation spring 4 abuts with the flange outside the right-hand member of spring seat 26, under-voltage adjusting nut 6 is provided with in the left end of spring seat 26, under-voltage adjusting nut 6 is threaded with spring seat 26, spring seat 26 can move relative to superpressure adjusting nut 7, the right-hand member of under-voltage Regulation spring 5 abuts with the left end of cylinder piston rod 8, the left end of under-voltage Regulation spring 5 abuts with under-voltage adjusting nut 6, as shown in Figure 3.Also be arranged with guide rod in under-voltage Regulation spring 5, the right-hand member of this guide rod is fixedly connected with the left end of cylinder piston rod 8, and the right-hand member of this guide rod is plugged in under-voltage adjusting nut 6, and this guide rod can horizontally slip relative to under-voltage adjusting nut 6.
Described Electromagnetic Control Emergeny Cutoff Valves also comprises pull bar 31, the axis of pull bar 31 and the dead in line of lifting arm 22, pull bar 31 is arranged on the below of lifting arm 22, the upper end of pull bar 31 is fixedly connected with main valve plug 3, the lower end of pull bar 31 is arranged on outside valve body 1, pull bar 31 and valve body 1 are tightly connected, and this elastic member is be set in the main spring 25 that pull bar 31 can be made to reset outside pull bar 31, and this main spring 25 is arranged on outside valve body 1.Concrete, as shown in Figure 1, the lower end extenal fixation of pull bar 31 has nut, and the upper end of main spring 25 abuts with valve body 1, and the lower end of main spring 25 abuts with this nut.In addition, described Electromagnetic Control Emergeny Cutoff Valves also comprises the motor 9 that upwards can promote lifting arm 22, and motor 9 is connected with lifting arm 22 by cam mechanism, and motor 9 also can promote lifting arm 22 by pinion and rack.In the present embodiment, the main air pressure of conveying gas that relies on that moves up of main valve plug 3 is to main valve plug 3 lower surface top pressure active force upwards, and it is only booster action that motor 9 promotes.
Introduce the working procedure of described Electromagnetic Control Emergeny Cutoff Valves below:
1, remote opening
First, this Electromagnetic Control Emergeny Cutoff Valves is in closed condition, as shown in Figure 1.When this Electromagnetic Control Emergeny Cutoff Valves opened by needs, off-load Electrical heads 24 is energized and attracts pressure releasing valve core 38, and pressure releasing valve core 38 moves up and makes pressure release passage 37 conducting.Namely the uuper valve chamber 32 above main valve plug 3 is allowed to be communicated with outlet end 35 (i.e. line downstream), in uuper valve chamber 32, gas causes main valve plug 3 upper and lower by force unbalance after pressure release passage 37 off-load, main valve plug 32 moves up by distribution pressure thrust upwards, then under the faint driving force effect of motor 9, main valve plug 3 is promoted to highest order, now this Electromagnetic Control Emergeny Cutoff Valves is in opening state, motor 9 power-off.Utilize ball 17 to snap in the annular groove of lifting arm 22, the position of lifting arm 22 and main valve plug 3 is locked structure latches, and seesaw 12 is in two ends stress balance state, and main valve plug 3 reaches maximum opening position, now as shown in Figure 4.
2, long-range closedown
When this Electromagnetic Control Emergeny Cutoff Valves of needs, close Electrical heads 19 brief energization, the second roll wheel assembly 21 is pulled to deflect clockwise by the adhesive of the electromagnet of Electrical heads 19, as shown in Figure 5, the first roll wheel assembly 11 in Fig. 3 is driven to deflect counterclockwise in second roll wheel assembly 21 deflection, stick up class 12 left end and lose support, shift fork 14 and lock sleeve 16 can not provide enough coupling mechanism forces to push down ball 17, main spring 25 drives main valve plug 3 and lifting arm 22 slide downward because needs reset simultaneously, ball 17 is forced to skid off the annular lock groove of lifting arm 22 also radially away from lifting arm 22, main valve plug 3 moves downward the sealing station of valve body 1, as shown in Figure 1, now this Electromagnetic Control Emergeny Cutoff Valves cuts out completely, by well head and external transport pipeline completely isolated.
3, pneumatic overpressure protection
The atmospheric pressure cavity 41 of superpressure and under-voltage cylinder is communicated with the entry end 35 (production flow line upstream) of this Electromagnetic Control Emergeny Cutoff Valves by the first measuring pressure passage 2, when there is superpressure urgency, source of the gas promotes cylinder piston rod 9 and compresses superpressure spring 4 to left movement, piston rod 9 drives piston pulling rod 10, piston pulling rod 10 forces the first lever of the first roll wheel assembly 11 to deflect counterclockwise, as shown in Figure 6, the left end sticking up class 12 loses support, shift fork 14 and lock sleeve 16 can not provide enough coupling mechanism forces to push down ball 17, main spring 25 drives main valve plug 3 because reset simultaneously, lifting arm 22 slide downward, ball 17 is forced to skid off the annular lock groove of lifting arm 22, main valve plug 3 moves downward the sealing station of valve body 1, as shown in Figure 1, now this Electromagnetic Control Emergeny Cutoff Valves cuts out completely, by well head and external transport pipeline completely isolated.
After superpressure emergency cut-off appears in this Electromagnetic Control Emergeny Cutoff Valves, this Electromagnetic Control Emergeny Cutoff Valves is in buttoned-up status.Superpressure and the under-voltage cylinder of this Electromagnetic Control Emergeny Cutoff Valves communicate with production flow line always, and in line pressure aberrant continuation situation, in-situ protection implemented by this Electromagnetic Control Emergeny Cutoff Valves, unless line pressure returns to normal production.Superpressure value regulates by superpressure adjusting nut 7 degree of tightness (i.e. superpressure adjusting nut 7 right position in figure 3).
4, pneumatic under-voltage protection
The atmospheric pressure cavity 41 of superpressure and under-voltage cylinder is communicated with the outlet end 36 (production flow line downstream) of this Electromagnetic Control Emergeny Cutoff Valves by the second measuring pressure passage 42, when there is under-voltage urgency, cylinder piston rod 9 drives piston pulling rod 10 right side movement in Fig. 7 together, piston pulling rod 10 forces the first lever of the first roll wheel assembly 11 to deflect clockwise, as shown in Figure 7, the left end sticking up class 12 loses support, shift fork 14 and lock sleeve 16 can not provide enough coupling mechanism forces to push down ball 17, main spring 25 drives main valve plug 3 because reset simultaneously, lifting arm 22 slide downward, ball 17 is forced to skid off the annular lock groove of lifting arm 22, main valve plug 3 moves downward the sealing station of valve body 1, as shown in Figure 1, now this Electromagnetic Control Emergeny Cutoff Valves cuts out completely, by well head and external transport pipeline completely isolated.
After under-voltage emergency cut-off appears in this Electromagnetic Control Emergeny Cutoff Valves, this Electromagnetic Control Emergeny Cutoff Valves is in buttoned-up status.Superpressure and the under-voltage cylinder of this Electromagnetic Control Emergeny Cutoff Valves communicate with production flow line always, and in line pressure aberrant continuation situation, in-situ protection implemented by this Electromagnetic Control Emergeny Cutoff Valves, unless line pressure returns to normal production.Under-voltage value regulates by the degree of tightness (i.e. under-voltage adjusting nut 6 right position in figure 3) of under-voltage adjusting nut 6.
This Electromagnetic Control Emergeny Cutoff Valves, when gas transmission line appearance of abnormal pressure, can play the object of emergency cut-off gas transmission line automatically.This Electromagnetic Control Emergeny Cutoff Valves utilizes pipe natural gas as major impetus, can realize remote high-voltage open and close and urgent super, undervoltage function; Not by other auxiliary external force during emergency cut-off, more reliable and more stable than the emergency cut-off structure of the mechanical self-powering type of tradition, nitrogen auxiliary device.When appearance is super, after under-voltage emergency cut-off, valve is in buttoned-up status, guarantees that site safety is produced.
The above, be only specific embodiments of the invention, can not limit the scope that invention implements with it, so the displacement of its equivalent assemblies, or the equivalent variations done according to scope of patent protection of the present invention and modification, all still should belong to the category that this patent is contained.In addition, the technical characteristics in the present invention and all can using by independent assortment between technical characteristics, between technical characteristics and technological scheme, between technological scheme and technological scheme.
Claims (10)
1. an Electromagnetic Control Emergeny Cutoff Valves, it is characterized in that, described Electromagnetic Control Emergeny Cutoff Valves comprises main valve plug (3), valve seat (20) and valve body (1), main valve plug (3) and valve seat (20) are arranged in valve body (1), main valve plug (3) is connected with the inner wall sealing of valve body (1), the top of main valve plug (3) is provided with closed uuper valve chamber (32), the pressure release passage (37) of the outlet end (35) that can be communicated with uuper valve chamber (32) and this Electromagnetic Control Emergeny Cutoff Valves is provided with in the sidewall of valve body (1), described Electromagnetic Control Emergeny Cutoff Valves also comprises the elastic member for making main valve plug (3) reset and can control the pressure release electromagnetic valve assembly of pressure release passage (37) switch.
2. Electromagnetic Control Emergeny Cutoff Valves according to claim 1, it is characterized in that, this pressure release electromagnetic valve assembly comprises off-load Electrical heads (24) and can the pressure releasing valve core (38) of shutoff pressure release passage (37), pressure releasing valve core (38) is connected by spring with between the electromagnet core of off-load Electrical heads (24), when off-load Electrical heads (24) attracts pressure releasing valve core (38), pressure releasing valve core (38) can move and make pressure release passage (37) conducting.
3. Electromagnetic Control Emergeny Cutoff Valves according to claim 1, it is characterized in that, described Electromagnetic Control Emergeny Cutoff Valves also comprises lifting arm (22), the lower end of lifting arm (22) is fixedly connected with main valve plug (3), the upper end of lifting arm (22) is arranged on valve body (1) outward, lifting arm (22) is tightly connected by valve gap (18) and valve body (1), and lifting arm (22) is connected with the locking framework for making main valve plug (3) be fixed on enable possition.
4. Electromagnetic Control Emergeny Cutoff Valves according to claim 3, it is characterized in that, this locking framework comprises and is set in lifting arm (22) shift fork outward (14) and lock sleeve (16) from the top down successively, shift fork (14) and lock sleeve (16) are tubular, lock sleeve (16) is arranged on the top of valve gap (18), ball (17) is provided with between lock sleeve (16) and valve gap (18), the lower end of lock sleeve (16) is provided with lower inclined plane ball (17) can being pushed to lifting arm (22) axis, lifting arm (22) is provided with the annular groove for clamping ball (17), the degree of depth of this annular groove is less than the radius of ball (17), this locking framework also comprises the reset assembly resetted for lock sleeve (16).
5. Electromagnetic Control Emergeny Cutoff Valves according to claim 4, it is characterized in that, this reset assembly comprises gland (39) and spring (15), gland (39) is set in shift fork (14) outward, the position of gland (39) is fixing relative to valve body (1), spring (15) is set in shift fork (14) and lock sleeve (16) outward, the upper end of spring (15) abuts with gland (39), and the lower end of spring (15) abuts with lock sleeve (16) annular projection outward.
6. Electromagnetic Control Emergeny Cutoff Valves according to claim 5, it is characterized in that, valve body (1) is fixed with the supporting base (40) of tubular, shift fork (14), lock sleeve (16), gland (39) and spring (15) are all set in supporting base (40), gland (39) is fixedly connected with supporting base (40), this locking framework also comprises seesaw (12) and the first roll wheel assembly (11), seesaw (12) and the first roll wheel assembly (11) are all arranged on supporting base (40) outward, seesaw (12) is arranged in the horizontal direction, first roll wheel assembly (11) comprises the first lever vertically arranged, one end of seesaw (12) is connected with shift fork (14), this first lever is arranged on the below of the other end of seesaw (12), the other end of seesaw (12) is provided with towards the protuberance of this first lever, the middle part of seesaw (12) is provided with bearing pin (13), seesaw (12) can with bearing pin (13) for axle rotates, the lower end of this first lever is provided with rotating shaft, this first lever can with this rotating shaft for axle rotates, first roll wheel assembly (11) and shift fork (14) can support the two ends of seesaw (12) respectively and the two ends of seesaw (12) are balanced.
7. Electromagnetic Control Emergeny Cutoff Valves according to claim 6, it is characterized in that, described Electromagnetic Control Emergeny Cutoff Valves also comprises electromagnetism closing assembly, this electromagnetism closing assembly comprises closes Electrical heads (19) and the second roll wheel assembly (21), second roll wheel assembly (21) comprises the second lever, one end of this second lever is hinged by connecting pin (33) with the electromagnet core (34) of closing Electrical heads (19), the other end of this second lever and the middle part of this first lever hinged, close Electrical heads (19) this first lever rotation can be made and break the balance at seesaw (12) two ends.
8. Electromagnetic Control Emergeny Cutoff Valves according to claim 6, it is characterized in that, described Electromagnetic Control Emergeny Cutoff Valves also comprises superpressure and under-voltage cylinder, this superpressure and under-voltage cylinder comprise cylinder barrel (28), cylinder piston rod (8) and atmospheric pressure cavity (41) is provided with in cylinder barrel (28), one end of cylinder piston rod (8) and the middle part of this first lever hinged, the other end of cylinder piston rod (8) is connected with pressure sensing cell, the first measuring pressure passage (2) and the second measuring pressure passage (42) is provided with in valve body (1), one end of first measuring pressure passage (2) is communicated with atmospheric pressure cavity (41), the other end of the first measuring pressure passage (2) is communicated with the entry end (36) of this Electromagnetic Control Emergeny Cutoff Valves, one end of second measuring pressure passage (42) is communicated with atmospheric pressure cavity (41), the other end of the second measuring pressure passage (42) is communicated with the outlet end (35) of this Electromagnetic Control Emergeny Cutoff Valves, cylinder piston rod (8) can make this first lever rotation and break the balance at seesaw (12) two ends.
9. Electromagnetic Control Emergeny Cutoff Valves according to claim 8, it is characterized in that, this pressure sensing cell comprises bonnet (27) sheathed successively from outside to inside, superpressure Regulation spring (4), spring seat (26) and under-voltage Regulation spring (5), bonnet (27) and spring seat (26) are tubular, one end of bonnet (27) is fixedly connected with cylinder barrel (28), superpressure adjusting nut (7) is provided with in the other end of bonnet (27), bonnet (27) is threaded with superpressure adjusting nut (7), one end of superpressure Regulation spring (4) abuts with superpressure adjusting nut (7), the other end of superpressure Regulation spring (4) abuts with the flange outside spring seat (26) one end, under-voltage adjusting nut (6) is provided with in the other end of spring seat (26), under-voltage adjusting nut (6) is threaded with spring seat (26), one end of under-voltage Regulation spring (5) abuts with the other end of cylinder piston rod (8), the other end of under-voltage Regulation spring (5) abuts with under-voltage adjusting nut (6).
10. Electromagnetic Control Emergeny Cutoff Valves according to claim 3, it is characterized in that, described Electromagnetic Control Emergeny Cutoff Valves also comprises pull bar (31), the axis of pull bar (31) and the dead in line of lifting arm (22), pull bar (31) is arranged on the below of lifting arm (22), the upper end of pull bar (31) is fixedly connected with main valve plug (3), the lower end of pull bar (31) is arranged on valve body (1) outward, pull bar (31) and valve body (1) are tightly connected, this elastic member is for being set in the main spring (25) that pull bar (31) can be made to reset outside pull bar (31), this main spring (25) is arranged on valve body (1) outward.
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| CN201510177844.8A CN104864136B (en) | 2015-04-15 | 2015-04-15 | A kind of Electromagnetic Control quick action emergency valve |
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| CN201510177844.8A CN104864136B (en) | 2015-04-15 | 2015-04-15 | A kind of Electromagnetic Control quick action emergency valve |
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Cited By (8)
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| CN106494380A (en) * | 2016-11-08 | 2017-03-15 | 清华大学苏州汽车研究院（相城） | A kind of combined piston type proportion relay valve and the control method of relay valve |
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| CN108194648A (en) * | 2018-01-31 | 2018-06-22 | 西安海智机电设备有限公司 | A kind of quick action emergency valve |
| CN108679287A (en) * | 2018-05-23 | 2018-10-19 | 河南工程学院 | It is a kind of can automatic shutter Fluid valve |
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| CN2050112U (en) * | 1988-09-23 | 1989-12-27 | 许渭清 | Jaw opening-adjustable high-frequency magnetic valve |
| US6161570A (en) * | 1999-06-01 | 2000-12-19 | Tyco Flow Control, Inc. | Pilot-operated relief valve |
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| CN202545906U (en) * | 2012-04-12 | 2012-11-21 | 成都华泰燃气设备有限公司 | Quick action emergency valve |
| CN202628031U (en) * | 2012-06-24 | 2012-12-26 | 北京众博达石油科技有限公司 | Pilot solenoid valve for wellhead of gas well and lifting mechanism for valve core |
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| CN106494380A (en) * | 2016-11-08 | 2017-03-15 | 清华大学苏州汽车研究院（相城） | A kind of combined piston type proportion relay valve and the control method of relay valve |
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| CN108194648A (en) * | 2018-01-31 | 2018-06-22 | 西安海智机电设备有限公司 | A kind of quick action emergency valve |
| CN108679287A (en) * | 2018-05-23 | 2018-10-19 | 河南工程学院 | It is a kind of can automatic shutter Fluid valve |
| CN110905444A (en) * | 2019-11-22 | 2020-03-24 | 中国石油天然气股份有限公司 | Gas well remote pressure control and adjustment quick-break device and application method thereof |
| CN110905444B (en) * | 2019-11-22 | 2023-07-25 | 中国石油天然气股份有限公司 | Remote control pressure regulating emergency breaking device for gas well and application method thereof |
| CN111810667A (en) * | 2020-07-13 | 2020-10-23 | 北京众博达石油科技有限公司 | Valve body and low-torque opening valve emergency cut-off device for pipeline |
| CN112943938A (en) * | 2021-01-29 | 2021-06-11 | 重庆盾铭电磁阀有限公司 | Pneumatic explosion-proof valve with energy storage electromagnetic device |
| CN117847240A (en) * | 2024-01-18 | 2024-04-09 | 索蒙控制阀门有限公司 | Pneumatic high-temperature gas butterfly valve |
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