CN110319250A - Dual-valve body hedging emergency cut-off core pipe valve - Google Patents
Dual-valve body hedging emergency cut-off core pipe valve Download PDFInfo
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- CN110319250A CN110319250A CN201810275738.7A CN201810275738A CN110319250A CN 110319250 A CN110319250 A CN 110319250A CN 201810275738 A CN201810275738 A CN 201810275738A CN 110319250 A CN110319250 A CN 110319250A
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- valve
- sleeve
- valve body
- interlayer
- inner cavity
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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
- F16K17/003—Safety valves; Equalising valves, e.g. pressure relief valves reacting to pressure and temperature
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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
- F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
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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
- F16K17/40—Safety valves; Equalising valves, e.g. pressure relief valves with a fracturing member, e.g. fracturing diaphragm, glass, fusible joint
- F16K17/406—Safety valves; Equalising valves, e.g. pressure relief valves with a fracturing member, e.g. fracturing diaphragm, glass, fusible joint the fracturing member being a generally elongated member, e.g. rod or wire, which is directly connected to a movable valve member, the breaking or buckling of the elongated member allowing the valve member to move to a closed or open position
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/041—Construction of housing; Use of materials therefor of sliding valves cylindrical slide valves
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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
- F16K41/00—Spindle sealings
- F16K41/10—Spindle sealings with diaphragm, e.g. shaped as bellows or tube
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
Abstract
Dual-valve body hedging emergency cut-off core pipe valve of the invention is the subfamily of the dual-valve body core pipe valve plate block of the core pipe stem nut series of my original invention；The valve core tube for being wrapped in outer valve inner cavity is the coaxial sleeve II through the sleeve I of valve body, body cavity and valve body of fixing piece；There is axial interlayer in the middle part of valve core tube, the axially adjacent both sides of interlayer are at least one radial recirculation hole of input section and deferent segment respectively；Ring-shaped valve seats around at least one sleeve throat of the annular spool and sleeve I and sleeve II of interlayer constitutes sealing pair；Difference >=0 of the outer diameter of input section and deferent segment, input section and sleeve I and deferent segment and sleeve II are that shaft hole mode cooperates the setting of its at least one engaging portion to seal；Disconnecting device is axially arranged in any one of valve body end direction；Under the action of potential energy, valve body makees axial movement emergency cut-off medium flow field in outer body cavity relative to valve core tube.Simply, reliably, flexibly, safely, rely on oneself and complete various hedgings.
Description
Technical field
Dual-valve body hedging emergency cut-off core pipe valve of the invention belongs to valve field, is related to pipe network super-pressure, earthquake, fire
Calamity, dielectric leakage, smog and promptly relying on oneself stop valve in emergency circumstances；It is in the core pipe stem nut series of my original invention
Dual-valve body core pipe valve plate block subfamily；Various protective devices, which are arranged, keeps valve in the open state always, in emergency circumstances,
It relies on oneself tripping protection device, closes valve moment.
Background technique
Currently, being applied to the special types such as high temperature and pressure, poisonous and harmful, inflammable and explosive, nuclear energy, deep-sea oil gas, naval vessel and submarine
Specific use valve under operating condition and environment timely and effective cannot cope with when super-pressure, earthquake, and some also needs to drive
Kinetic energy source, drive system and actuator are cost price, higher using price and support price.
Summary of the invention
The object of the present invention is to provide a kind of dual-valve body hedging emergency cut-off core pipe valves, and existing Special valve is overcome to exist
The deficiency when disasters such as superelevation pressure medium and earthquake occur meets the security needs of harsh operating condition and high-end applications field.
Dual-valve body hedging emergency cut-off core pipe valve is mainly technically characterized by: the valve core tube for being wrapped in outer valve inner cavity
For connection pressure vessel, press device, medium pipe network fixing piece it is coaxial through the sleeve I of valve body, body cavity and
The sleeve II of valve body；Have axial interlayer in the middle part of valve core tube, interlayer by the valve core tube of kernel and kernel radial radiation intermediate pipeline section
It constitutes；The axially adjacent both sides of interlayer are at least one radial recirculation hole of input section and deferent segment respectively；Around the ring of interlayer
The ring-shaped valve seats of at least one sleeve throat of shape spool and sleeve I and pipe II constitutes sealing pair；Input section and deferent segment it is outer
Difference >=0 of diameter, input section and sleeve I and deferent segment and sleeve II are that shaft hole mode cooperates the setting of its at least one engaging portion to seal；
Iron block is arranged at least one sleeve end face of sleeve I and sleeve II, and corresponding outer valve inner face setting matches forever
Long magnet；After iron block disengages permanent magnet, under the action of potential energy, valve body makees axial movement emergency cut-off in outer body cavity and is situated between
Mass flow.
The technical characteristics of dual-valve body hedging emergency cut-off core pipe valve can also be: described to be wrapped in outer valve inner cavity
Valve core tube is that be connected to pressure vessel, press device, the fixing piece of medium pipe network coaxial through in the sleeve I, valve body of valve body
The sleeve II of chamber and valve body；There is axial interlayer in the middle part of valve core tube, interlayer is by the valve core tube of kernel and kernel radial radiation
Between pipeline section constitute；The axially adjacent both sides of interlayer are at least one radial recirculation hole of input section and deferent segment respectively；Around every
The ring-shaped valve seats of at least one sleeve throat of the annular spool and sleeve I and pipe II of layer constitutes sealing pair；Input section and output
Difference >=0 of the outer diameter of section, input section and sleeve I and deferent segment and sleeve II are that shaft hole mode cooperates its at least one engaging portion to be arranged
Sealing；Axially a piece valve rod of connection, valve rod pass through inner cavity and outer valve at least one sleeve end direction of sleeve I and sleeve II
The valve rod base of end；Iron block is arranged at least one sleeve end face of sleeve I and sleeve II, and corresponding outer valve inner face is set
Set the permanent magnet to match；After iron block disengages permanent magnet, under the action of potential energy, valve body makees axial move in outer body cavity
Dynamic emergency cut-off medium flow field.
The technical characteristics of dual-valve body hedging emergency cut-off core pipe valve are also possible to: the outer valve inner cavity that is wrapped in
Valve core tube is that be connected to pressure vessel, press device, the fixing piece of medium pipe network coaxial through in the sleeve I, valve body of valve body
The sleeve II of chamber and valve body；There is axial interlayer in the middle part of valve core tube, interlayer is by the valve core tube of kernel and kernel radial radiation
Between pipeline section constitute；The axially adjacent both sides of interlayer are at least one radial recirculation hole of input section and deferent segment respectively；Around every
The ring-shaped valve seats of at least one sleeve throat of the annular spool and sleeve I and pipe II of layer constitutes sealing pair；Input section and output
Difference >=0 of the outer diameter of section, input section and sleeve I and deferent segment and sleeve II are that shaft hole mode cooperates its at least one engaging portion to be arranged
Sealing；Axially a piece valve rod of connection, valve rod pass through inner cavity and outer valve at least one sleeve end direction of sleeve I and sleeve II
The valve rod base of end, valve rod base are arranged radially safety pin, and safety pin is inserted into the duct of valve rod base and the counterbore of valve rod；Safety pin quilt
After cutting, under the action of potential energy, valve body makees axial movement emergency cut-off medium flow field in outer body cavity.
The technical characteristics of dual-valve body hedging emergency cut-off core pipe valve are also possible to: the outer valve inner cavity that is wrapped in
Valve core tube is that be connected to pressure vessel, press device, the fixing piece of medium pipe network coaxial through in the sleeve I, valve body of valve body
The sleeve II of chamber and valve body；There is axial interlayer in the middle part of valve core tube, interlayer is by the valve core tube of kernel and kernel radial radiation
Between pipeline section constitute；The axially adjacent both sides of interlayer are at least one radial recirculation hole of input section and deferent segment respectively；Around every
The ring-shaped valve seats of at least one sleeve throat of the annular spool and sleeve I and pipe II of layer constitutes sealing pair；Input section and output
Difference >=0 of the outer diameter of section, input section and sleeve I and deferent segment and sleeve II are that shaft hole mode cooperates its at least one engaging portion to be arranged
Sealing；Axially a piece valve rod of connection, valve rod pass through inner cavity and outer valve at least one sleeve end direction of sleeve I and sleeve II
The valve rod base of end, valve rod outer end head are that the permanent magnet of iron block and same axis fixed point to match is affixed；Iron block axis
To after disengaging permanent magnet, under the action of potential energy, valve body makees axial movement emergency cut-off medium flow field in outer body cavity.
The technical characteristics of dual-valve body hedging emergency cut-off core pipe valve may also is that the outer valve inner cavity that is wrapped in
Valve core tube is that be connected to pressure vessel, press device, the fixing piece of medium pipe network coaxial through in the sleeve I, valve body of valve body
The sleeve II of chamber and valve body；There is axial interlayer in the middle part of valve core tube, interlayer is by the valve core tube of kernel and kernel radial radiation
Between pipeline section constitute；The axially adjacent both sides of interlayer are at least one radial recirculation hole of input section and deferent segment respectively；Around every
The ring-shaped valve seats of at least one sleeve throat of the annular spool and sleeve I and pipe II of layer constitutes sealing pair；Input section and output
Difference >=0 of the outer diameter of section, input section and sleeve I and deferent segment and sleeve II are that shaft hole mode cooperates its at least one engaging portion to be arranged
Sealing；Axially a piece valve rod of connection, valve rod pass through inner cavity and outer valve at least one sleeve end direction of sleeve I and sleeve II
The valve rod base of end, valve rod outer end head are that safety belt is connect with the fixed point of same axis；After safety belt disconnects, in potential energy
Under effect, valve body makees axial movement emergency cut-off medium flow field in outer body cavity.
The technical characteristics of dual-valve body hedging emergency cut-off core pipe valve may also is that the outer valve inner cavity that is wrapped in
Valve core tube is that be connected to pressure vessel, press device, the fixing piece of medium pipe network coaxial through in the sleeve I, valve body of valve body
The sleeve II of chamber and valve body；There is axial interlayer in the middle part of valve core tube, interlayer is by the valve core tube of kernel and kernel radial radiation
Between pipeline section constitute；The axially adjacent both sides of interlayer are at least one radial recirculation hole of input section and deferent segment respectively；Around every
The ring-shaped valve seats of at least one sleeve throat of the annular spool and sleeve I and pipe II of layer constitutes sealing pair；Input section and output
Difference >=0 of the outer diameter of section, input section and sleeve I and deferent segment and sleeve II are that shaft hole mode cooperates its at least one engaging portion to be arranged
Sealing；Axially a piece valve rod of connection, valve rod pass through inner cavity and outer valve at least one sleeve end direction of sleeve I and sleeve II
The valve rod base of end, valve rod outer end head are sequentially connected safety belt and iron block, fixed on iron block and same axis when valve opening
The permanent magnet of point to match is affixed；After safety belt and any one of iron block and permanent magnet mechanism disconnect, in potential energy
Under effect, valve body makees axial movement emergency cut-off medium flow field in outer body cavity.
The electric appliance fuse that fuse cord, smoke inductor are overlapped in the middle part of the safety belt, can also overlap rope.
The interlayer is made of the intermediate pipeline section of the valve core tube of kernel and kernel radial radiation, can be it is integrated, can also
To be that kernel is axially forced to two of valve core tube parts and is constituted；Two axial end faces of the interlayer kernel are ligulate triangle slopes
Conveyance capacity is improved from interflow is diverted in face to greatest extent, realizes that medium flow direction is steady, flow resistance is small, low pressure loss；In interlayer
The axial end face of core can be spherical surface, be also possible to arc lower guide surface, can also be plane, concave surface and the conical surface.
Setting compression bullet between the sleeve I and the one of sleeve end face of sleeve II and corresponding outer valve inner face
Spring.
The sealing surface of the annular spool is two-way slope surface, unidirectional slope surface, arc slope, and the gradient of slope surface is preferably >=8
Degree.
At least one sleeve of the sleeve I and sleeve II has a liner of tubular, tubular liner be located at sleeve throat just with
Ring-shaped valve seats is integrally formed.
Several balls are set between the valve body annular outer wall and outer valve annular inner wall.
In conclusion dual-valve body hedging emergency cut-off core pipe valve of the present invention has the active effect that
1, structure is simple, convenient for manufacture；
2, external seal problem is not present；
3, ring-shaped valve seats and annular spool are sleeve structures, and axial straight contact does not rub, and interior sealing effect is good；
4, long service life, cost performance are high；
5, various operating conditions are adapted to substantially；
6, flow resistance is small；
Even if operability can be still good 7, in the state of high pressure or negative pressure；
8, energy consumption is reduced, production efficiency is improved；
9, using driving method of relying on oneself, driving cost is reduced.
Detailed description of the invention
Attached drawing 1,2 is the full the schematic diagram of the section structure in longitudinal direction of one embodiment of the invention.
Attached drawing 3,4 is the full the schematic diagram of the section structure in longitudinal direction of second embodiment of the invention.
Attached drawing 5,6 is the full the schematic diagram of the section structure in longitudinal direction of third embodiment of the invention.
Attached drawing 7,8 is the full the schematic diagram of the section structure in longitudinal direction of the 4th embodiment of the invention.
Attached drawing 9,10 is the full the schematic diagram of the section structure in longitudinal direction of the 5th embodiment of the invention.
Attached drawing 11,12 is the full the schematic diagram of the section structure in longitudinal direction of the 6th embodiment of the invention.
Attached drawing 13,14 is the full the schematic diagram of the section structure in longitudinal direction of the 7th embodiment of the invention.
Attached drawing 15,16 is the full the schematic diagram of the section structure in longitudinal direction of the 8th embodiment of the invention.
Attached drawing 17,18 is the full the schematic diagram of the section structure in longitudinal direction of the 9th embodiment of the invention.
Attached drawing 19,20 is the full the schematic diagram of the section structure in longitudinal direction of the tenth embodiment of the invention.
1- valve core tube, 1 '-input section, 1 in figure "-deferent segment, 100- interlayer, 100 '-ligulate triangle slope surfaces 100 ',
101- annular spool, 103- recirculation hole, 2- valve body, 2 '-sleeves I, 2 "-sleeve II, the inner cavity 200-, 201- ring-shaped valve seats,
300- bellows seal, 4- compressed spring, 501 '-handles, 504- valve rod, 504 '-valve rod bases, 509- permanent magnet, 509 "-
Iron block, 704- safety pin, 704 "-smoke inductor, 705- safety belt, 705 '-fuse cords, 707- ball, 708- weight, outside 8-
Valve body, 8 '-inner cavities.
Specific embodiment
Embodiment one
Referring to attached drawing 1,2, dual-valve body hedging emergency cut-off core pipe valve described in the present embodiment is used for emergency cut-off；It is described
The valve core tube 1 for being wrapped in 8 inner cavity 8 ' of outer valve is that fixing piece is coaxial from top to bottom through the sleeve of valve body 2 perpendicular to ground
I 2 ', the sleeve II 2 of 2 inner cavity 200 of valve body and valve body 2 "；Have axial interlayer 100 in the middle part of valve core tube 1, interlayer 100 by kernel and
The intermediate pipeline section of the valve core tube 1 of kernel radial radiation is constituted, and two axial end faces of 100 kernel of interlayer are ligulate triangle slope surfaces
100′；The axially adjacent both sides of interlayer 100 are input section 1 ' and deferent segment 1 " two well-balanced arrangements radial recirculation hole 103；
Sealing surface around the annular spool 101 of interlayer 100 is two-way slope surface and sleeve II 2, and " ring-shaped valve seats 201 of throat constitutes sealing
It is secondary；The engaging portion of input section 1 ' and sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " is respectively provided with bellows seal 300；Input section
1 ' outer diameter is less than deferent segment 1, and " outer diameter, therefore, axial two end faces in inner cavity 200 form pressure difference；" iron is arranged in end face to sleeve II 2
Block 509 ", permanent magnet 509 is arranged in corresponding 8 inner face of outer valve；Sleeve II 2 " has the liner of tubular.
It is open state shown in attached drawing 1, pipe network pressure medium is normal, and the pressure difference of axial two end faces in inner cavity 200 is formed
Thrust be less than valve body 2 the magnetic force for adding permanent magnet 509 from gravity, valve body 2 always be in locked open state, sleeve II 2 "
The ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 penetrate through,
Flow of media.
It shown in attached drawing 2, is in off state, ductwork pressure superelevation, what the pressure difference of axial two end faces in inner cavity 200 was formed pushes away
Power superelevation is in the magnetic force for adding permanent magnet 509 from gravity of valve body 2, iron block 509 " disengages permanent magnet 509, in 2 axial direction of valve body
" ring-shaped valve seats 201 of throat is closely affixed with 101 moment of annular spool, and super-pressure medium is prevented to enter pipe network for shifting, sleeve II 2
Equipment and pipeline are damaged, resource and environment are protected；Once pressure medium restores normal, valve body 2 adds permanent magnet from gravity
509 magnetic force moves down valve body 2 axially, restores open state.
Embodiment two
Referring to attached drawing 3,4, dual-valve body hedging emergency cut-off core pipe valve described in the present embodiment is used for emergency cut-off；It is described
The valve core tube 1 for being wrapped in 8 inner cavity 8 ' of outer valve is that fixing piece is coaxial from bottom to up through the sleeve of valve body 2 perpendicular to ground
I 2 ', the sleeve II 2 of 2 inner cavity 200 of valve body and valve body 2 "；Have axial interlayer 100 in the middle part of valve core tube 1, interlayer 100 by kernel and
The intermediate pipeline section of the valve core tube 1 of kernel radial radiation is constituted, and two axial end faces of 100 kernel of interlayer are ligulate triangle slope surfaces
100′；The axially adjacent both sides of interlayer 100 are input section 1 ' and deferent segment 1 " two well-balanced arrangements radial recirculation hole 103；
Sealing surface around the annular spool 101 of interlayer 100 is two-way slope surface and sleeve II 2, and " ring-shaped valve seats 201 of throat constitutes sealing
It is secondary；The engaging portion of input section 1 ' and sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " is respectively provided with bellows seal 300；Input section
1 ' outer diameter is less than deferent segment 1, and " outer diameter, therefore, axial two end faces in inner cavity 200 form pressure difference；I 2 ' end face of sleeve with it is corresponding
8 inner face of outer valve between two compressed springs 4 are axially set；Sleeve II 2 " iron block 509 is arranged in end face ", it is corresponding
Permanent magnet 509 is arranged in 8 inner face of outer valve；Sleeve II 2 " has the liner of tubular.
It is open state shown in attached drawing 3, since pipe network pressure medium is normal, the pressure of axial two end faces in inner cavity 200
The thrust that difference is formed adds the elastic force for adding compressed spring 4 less than 509 magnetic force of permanent magnet from gravity of valve body 2, and valve body 2 is in always
The stream of locked open state, sleeve II 2 " ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and deferent segment 1 "
Through-hole 103 and inner cavity 200 penetrate through, flow of media.
It shown in attached drawing 4, is in off state, pipe network pressure medium superelevation, the pressure difference of axial two end faces in inner cavity 200 is formed
Thrust add the elastic force for adding compressed spring 4 in 509 magnetic force of permanent magnet from gravity superelevation of valve body 2, iron block 509 and " disengage permanent
Magnet 509, valve body 2 is axial to be moved down, and " ring-shaped valve seats 201 of throat is closely affixed sleeve II 2 with 101 moment of annular spool, is prevented
Super-pressure medium enters pipe network damage equipment and pipeline, protects resource and environment；Once pressure medium restores normal, bullet is compressed
Spring 4 is axially extending to move up valve body 2 axially, restores to open.
Embodiment three
Referring to attached drawing 5,6, dual-valve body hedging emergency cut-off core pipe valve described in the present embodiment is used for emergency cut-off；It is described
Be wrapped in 8 inner cavity 8 ' of outer valve valve core tube 1 be the coaxial sleeve I 2 through valve body 2 of fixing piece ', 2 inner cavity 200 of valve body,
And valve body 2 sleeve II 2 "；Have axial interlayer 100 in the middle part of valve core tube 1, interlayer 100 by kernel and kernel radial radiation valve
The intermediate pipeline section of core pipe 1 is constituted, and two axial end faces of 100 kernel of interlayer are spherical surfaces；Input section 1 ' and deferent segment 1 " have two
The radial recirculation hole 103 of a well-balanced arrangement；The sealing surface of annular spool 101 is two-way slope surface and the sleeve II 2 " annular plate valve of throat
Seat 201 constitutes sealing pair；The engaging portion of input section 1 ' and sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " is respectively provided with sylphon seal
Part 300；" axially a piece valve rod 504 of connection, valve rod 504 pass through the valve of inner cavity 8 ' and 8 end of outer valve to end direction to sleeve II 2
Pole socket 504 ', valve rod base 504 ' are arranged radially safety pin 704, and safety pin 704 is inserted into duct and the valve rod 504 of valve rod base 504 '
Counterbore, sleeve II 2 " are arranged a bellows seal 300 and wrap up valve rod between end face and corresponding 8 inner face of outer valve
504 inner segments；1 ' outer diameter of input section is less than deferent segment 1, and " outer diameter, therefore, axial two end faces in inner cavity 200 form pressure difference；Sleeve
II 2 " there is the liner of tubular；Several balls 707 are set between 8 annular inner wall of 2 annular outer wall of valve body and outer valve.
It is open state shown in attached drawing 5, since ductwork pressure is normal, the pressure difference shape of axial two end faces in inner cavity 200
At thrust be less than cutting safety pin 704 power, valve body 2 always be in locked open state, " the annular plate valve of throat of sleeve II 2
Seat 201 leaves annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 and the perforation of inner cavity 200, flow of media.
Shown in attached drawing 6, it is in off state, due to, pipe network pressure medium superelevation, the pressure of axial two end faces in inner cavity 200
The thrust that difference is formed is greater than the power of cutting safety pin 704, and valve body 2 is mobile to 1 ' direction moment of input section, and sleeve II 2 be " throat
Ring-shaped valve seats 201 is closely affixed with annular spool 101, and super-pressure medium is prevented to enter pipe network damage equipment and pipeline, protection money
Source and environment；Once pressure medium restores normal, valve rod 504 is pulled, new safety pin 704 is inserted into again, is in valve
Open state.
Example IV
Referring to attached drawing 7,8, dual-valve body hedging emergency cut-off core pipe valve described in the present embodiment is used for emergency cut-off, meanwhile,
It is used for emergency cut-off when an earthquake occurs；The valve core tube 1 for being wrapped in 8 inner cavity 8 ' of outer valve is that fixing piece is coaxial through valve
The sleeve I 2 of body 2 ', the sleeve II 2 of 2 inner cavity 200 of valve body and valve body 2 "；There are axial interlayer 100, interlayer in the middle part of valve core tube 1
100 are made of the intermediate pipeline section of kernel and the valve core tube 1 of kernel radial radiation, and two axial end faces of 100 kernel of interlayer are tongues
Shape triangle slope surface 100 '；" there are two radial recirculation holes 103 for input section 1 ' and deferent segment 1；The sealing surface of annular spool 101 is
" ring-shaped valve seats 201 of throat constitutes sealing pair for two-way slope surface and sleeve II 2；Input section 1 ' and sleeve I 2 ' and deferent segment 1 are " with sleeve
Pipe II 2 " engaging portion be respectively provided with bellows seal 300；" end direction axially connects a valve rod 504, valve rod to sleeve II 2
504 pass through inner cavity 8 ' and 8 end of outer valve valve rod base 504 ', 504 outer end head of valve rod is iron block 509 " its inclined-plane with it is same
The inclined-plane of the permanent magnet 509 of axis fixed point is affixed, sleeve II 2 " is arranged between end face and corresponding 8 inner face of outer valve
One bellows seal 300 wraps up 504 inner segment of valve rod；1 ' outer diameter of input section is less than deferent segment 1 " outer diameter, therefore, inner cavity 200
Axial two end faces form pressure difference；Sleeve II 2 " has the liner of tubular；2 annular outer wall of valve body and 8 annular inner wall of outer valve it
Between several balls 707 are set.
It is open state shown in attached drawing 7, since ductwork pressure is normal, the pressure difference shape of axial two end faces in inner cavity 200
At thrust be less than disengage permanent magnet 509 magnetic force, valve body 2 always be in locked state, " the annular plate valve of throat of sleeve II 2
Seat 201 leaves annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 and the perforation of inner cavity 200, flow of media.
It shown in attached drawing 8, is in off state, one, ductwork pressure superelevation, the pressure difference of axial two end faces in inner cavity 200 is formed
Superelevation thrust be greater than iron block 509 and " disengage the magnetic force of permanent magnet 509, valve body 2 is mobile to 1 ' direction moment of input section, sleeve
II 2 " ring-shaped valve seats 201 with annular spool 101 of throat are closely affixed, and super-pressure medium is prevented to enter pipe network damage equipment and pipe
Resource and environment are protected in road；Once pressure medium restores normal, recline permanent magnet 509 again, and valve is made to be in opening state
State；Two, " bounce disengages permanent magnet 509 to when an earthquake occurs, iron block 509, the pressure difference in axial two end faces in inner cavity 200
Under the thrust of formation, push valve body 2 mobile to 1 ' direction moment of input section, sleeve II 2 " ring-shaped valve seats 201 of throat with
101 moment of annular spool is closely affixed, and cuts off medium flow field；Once needing to return to normal production, iron block 509 is dragged " and permanent magnetic
Iron 509 is affixed, and valve reopens.
Embodiment five
Referring to attached drawing 9,10, dual-valve body hedging emergency cut-off core pipe valve described in the present embodiment is used for emergency cut-off；It is described
The valve core tube 1 for being wrapped in 8 inner cavity 8 ' of outer valve is that fixing piece is coaxial from bottom to up through the sleeve of valve body 2 perpendicular to ground
I 2 ', the sleeve II 2 of 2 inner cavity 200 of valve body and valve body 2 "；Have axial interlayer 100 in the middle part of valve core tube 1, interlayer 100 by kernel and
The intermediate pipeline section of the valve core tube 1 of kernel radial radiation is constituted, and two axial end faces of 100 kernel of interlayer are ligulate triangle slope surfaces
100′；" there are two radial recirculation holes 103 for input section 1 ' and deferent segment 1；The sealing surface of annular spool 101 be two-way slope surface with
" ring-shaped valve seats 201 of throat constitutes sealing pair to sleeve II 2；The knot of input section 1 ' and sleeve I 2 ' and deferent segment 1 " with sleeve II 2 "
Conjunction portion is respectively provided with bellows seal 300；" axially a piece valve rod 504 of connection, valve rod 504 pass through inner cavity to end direction to sleeve II 2
8 ' and 8 end of outer valve valve rod base 504 ', 504 outer end head of valve rod is the fixed point above safety belt 705 and same axis
Connection is arranged a bellows seal 300 and wraps up valve rod between the outer head of valve rod 504 and corresponding 8 end face of outer valve
504 outer segments；1 ' outer diameter of input section is less than deferent segment 1, and " outer diameter, therefore, axial two end faces in inner cavity 200 form pressure difference；Sleeve
II 2 " there is the liner of tubular.
It is open state shown in attached drawing 9, since pipe network pressure medium is normal, the pressure of axial two end faces in inner cavity 200
The thrust that difference is formed adds being less than from gravity for valve body 2 to break the power of safety belt 705, and valve body 2 is in locked open state, sleeve always
The recirculation hole 103 of pipe II 2 " ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and deferent segment 1 " and inner cavity 200
Perforation, flow of media.
Shown in attached drawing 10, it is in off state, due to, ductwork pressure superelevation, the pressure difference shape of axial two end faces in inner cavity 200
At superelevation thrust add valve body 2 break safety belt 705 from gravity, valve body 2 is axial to be moved down, " the ring-shaped valve seats of throat of sleeve II 2
201 are closely affixed with 101 moment of annular spool, and super-pressure medium is prevented to enter pipe network damage equipment and pipeline, protection resource and
Environment；Once pressure medium restores normal, safety belt 705 is affiliated to again, keeps pipe network in the open state.
Embodiment six
Referring to attached drawing 11,12, dual-valve body hedging emergency cut-off core pipe valve described in the present embodiment, for when an earthquake occurs
Emergency cut-off；The valve core tube 1 for being wrapped in 8 inner cavity 8 ' of outer valve is that fixing piece runs through from bottom to up perpendicular to ground is coaxial
In valve body 2 sleeve I 2 ', the sleeve II 2 of 2 inner cavity 200 of valve body and valve body 2 "；There is axial interlayer 100 in the middle part of valve core tube 1, every
Layer 100 is made of the intermediate pipeline section of kernel and the valve core tube 1 of kernel radial radiation, and two axial end faces of 100 kernel of interlayer are
Ligulate triangle slope surface 100 '；The sealing surface of annular spool 101 is two-way slope surface and sleeve II 2, and " ring-shaped valve seats 201 of throat is constituted
Sealing pair；The engaging portion of input section 1 ' and sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " is respectively provided with bellows seal 300；It is defeated
Entering section 1 ' and deferent segment 1, " there are two radial recirculation holes 103；I 2 ' end direction of sleeve axially connects a valve rod 504, valve rod
504 pass through the valve rod base 504 ' of inner cavity 8 ' and 8 end of outer valve, between I 2 ' end face of sleeve and corresponding 8 inner face of outer valve
The inner segment that bellows seal 300 wraps up valve rod 504 is set, ripple is set between 8 outer end face of 504 other end of valve rod and outer valve
Seals 300 wrap up the outer segment of valve rod 504, and 504 head of valve rod is handle 501 ', and handle 501 ' plays a weight below
708；Sleeve II 2 " iron block 509 is arranged in end face ", permanent magnet 509 is arranged in corresponding 8 inner face of outer valve；" the end of sleeve II 2
Compressed spring 4 is set between face and corresponding 8 inner face of outer valve；Under static state, the elastic thrust of compressed spring 4+
The magnetic force of the gravity < permanent magnet 509 of gravity+weight 708 of valve body 2, when earthquake occurs, the elastic thrust of compressed spring 4
The magnetic force for the gravity > permanent magnet 509 that gravity+weight 708 of+valve body 2 is beated；Sleeve II 2 " has the liner of tubular；Valve body 2
Annular inner wall and outer valve 8 annular inner wall between be arranged ball 707.
It is open state, under normal circumstances, iron block 509 " is affixed with permanent magnet 509, valve body 2 always shown in attached drawing 11
It is in the open state, the stream of sleeve II 2 " ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and deferent segment 1 "
Through-hole 103 and inner cavity 200 penetrate through, flow of media.
It is Abnormal Shutdown state shown in attached drawing 12, in consequence of an earthquake, during vibration, weight 708 follows handle
501 ', valve rod 504, valve body 2 are beated, its gravity belt fixed handle 501 ', valve rod 504, valve body 2 during downward impact is fallen
It moves downward, therewith, iron block 509 " permanent magnet 509 is disengaged, in the case where the elastic force of compressed spring 4 adds the self-gravity action of valve body 2,
Valve body 2 is axial to be moved down, and " ring-shaped valve seats 201 of throat is closely affixed sleeve II 2 with 101 moment of annular spool, cuts off medium flow field；
Once restoring normal, valve rod 504 is jacked up, iron block 509 is made " and permanent magnet 509 is affixed, valve is opened once again.
Embodiment seven
Referring to attached drawing 13,14, dual-valve body hedging emergency cut-off core pipe valve described in the present embodiment, for when an earthquake occurs
Emergency cut-off；The valve core tube 1 for being wrapped in 8 inner cavity 8 ' of outer valve is that fixing piece runs through from bottom to up perpendicular to ground is coaxial
In valve body 2 sleeve I 2 ', the sleeve II 2 of 2 inner cavity 200 of valve body and valve body 2 "；There is axial interlayer 100 in the middle part of valve core tube 1, every
Layer 100 is made of the intermediate pipeline section of kernel and the valve core tube 1 of kernel radial radiation, and two axial end faces of 100 kernel of interlayer are
Ligulate triangle slope surface 100 '；The sealing surface of annular spool 101 is arc slope and sleeve II 2, and " ring-shaped valve seats 201 of throat is constituted
Sealing pair；The engaging portion of input section 1 ' and sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " is respectively provided with bellows seal 300；It is defeated
Entering section 1 ' and deferent segment 1, " there are two radial recirculation holes 103；" end direction axially connects a valve rod 504, valve to sleeve II 2
Bar 504 passes through the valve rod base 504 ' of inner cavity 8 ' and 8 end of outer valve, and 504 outer end head of valve rod is half inclined-plane iron block 509 " and it is same
The permanent magnet 509 of the top fixed point of one axis matches and is affixed；The outer head of 8 outer end face of outer valve and valve rod 504 it
Between one bellows seal 300 of setting wrap up 504 outer segment of valve rod, sleeve II 2 " end face and corresponding 8 inner face of outer valve
Between setting compressed spring 4 wrap up 504 inner segment of valve rod.
It is open state, under normal circumstances, iron block 509 " is affixed with permanent magnet 509, valve body 2 always shown in attached drawing 13
It is in the open state, the stream of sleeve II 2 " ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and deferent segment 1 "
Through-hole 103 and inner cavity 200 penetrate through, flow of media.
It is Abnormal Shutdown state, since earthquake, during vibration, iron block 509 occurs " therewith up and down shown in attached drawing 14
The be staggered complete fitting of permanent magnet 509 of bounce is detached from permanent magnetic in valve body 2 under gravity and the effect of the elastic force of compressed spring 4
Iron 509 moves down valve body 2 axially, sleeve II 2, and " ring-shaped valve seats 201 of throat is closely affixed with 101 moment of annular spool, cutting
Medium flow field；Once restoring normal, valve rod 504 is held up, iron block 509 is made " and permanent magnet 509 is affixed again, valve is opened once again
It opens.
Embodiment eight
Referring to attached drawing 15,16, dual-valve body hedging emergency cut-off core pipe valve described in the present embodiment, for the tight of fire incident
It is eager disconnected；The valve core tube 1 for being wrapped in 8 inner cavity 8 ' of outer valve be the coaxial sleeve I 2 through valve body 2 of fixing piece ', valve
2 inner cavity 200 of body and valve body 2 sleeve II 2 "；There is axial interlayer 100 in the middle part of valve core tube 1, interlayer 100 is by kernel and kernel diameter
It is constituted to the intermediate pipeline section of the valve core tube 1 of radiation, two axial end faces of 100 kernel of interlayer are ligulate triangle slope surfaces 100 '；Ring
The sealing surface of shape spool 101 is two-way slope surface and sleeve II 2, and " ring-shaped valve seats 201 of throat constitutes sealing pair；Input section 1 ' and sleeve
The engaging portion of pipe I 2 ' and deferent segment 1 " with sleeve II 2 " is respectively provided with bellows seal 300；Input section 1 ' and deferent segment 1 " have
Two radial recirculation holes 103；" axially a piece valve rod 504 of connection, valve rod 504 pass through inner cavity 8 ' and outer valve to end direction to sleeve II 2
The valve rod base 504 ' of 8 end of body, sleeve II 2 " are arranged compressed spring 4 to wrap up between end face and corresponding 8 inner face of outer valve
A bellows seal 300 is arranged in the inner segment of valve rod 504 between 504 outer end head of valve rod and adjacent 8 outer end face of outer valve
Wrap up the outer segment of valve rod 504；8 axial outer end of outer valve has a fixed point, and fixed point is on the axis of valve rod 504, valve rod 504
Outer end head is connected and fixed a little by safety belt 705, and fuse cord 705 ' is overlapped in the middle part of safety belt 705；Sleeve II 2 " has tubular
Liner；Ball 707 is set between the annular inner wall of valve body 2 and the annular inner wall of outer valve 8.
It is open state shown in attached drawing 15, sleeve in the open state always in the pulling force effect lower valve body 2 of safety belt 705
The recirculation hole 103 of pipe II 2 " ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and deferent segment 1 " and inner cavity 200
Perforation, flow of media.
It is Abnormal Shutdown state shown in attached drawing 16, since fire incident occurs, the intensity of a fire is ignited fuse cord 705 ', fuse cord
705 ' blow safety belt 705 rapidly, and under the elastic force effect of compressed spring 4, valve body 2 is mobile to 1 ' direction of input section, sleeve II
2 " ring-shaped valve seats 201 with annular spool 101 of throat are closely affixed, and cut off medium flow field；When reopening, valve rod 504, weight are pulled
It is newly affiliated to safety belt 705, fuse cord 705 ' is installed.
Embodiment nine
Referring to attached drawing 17,18, dual-valve body hedging emergency cut-off core pipe valve described in the present embodiment, for fire and it is inflammable easily
The emergency cut-off of quick-fried, poisonous and harmful dielectric leakage；The valve core tube 1 for being wrapped in 8 inner cavity 8 ' of outer valve is that fixing piece is coaxial
Through valve body 2 sleeve I 2 ', the sleeve II 2 of 2 inner cavity 200 of valve body and valve body 2 "；There is axial interlayer in the middle part of valve core tube 1
100, interlayer 100 is made of the intermediate pipeline section of kernel and the valve core tube 1 of kernel radial radiation, two axial directions of 100 kernel of interlayer
End face is ligulate triangle slope surface 100 '；The sealing surface of annular spool 101 is two-way slope surface and the sleeve II 2 " ring-shaped valve seats of throat
201 constitute sealing pair；The engaging portion of input section 1 ' and sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " is respectively provided with bellows seal
300；" there are two radial recirculation holes 103 for input section 1 ' and deferent segment 1；" end direction axially connects a valve rod to sleeve II 2
504, valve rod 504 passes through the valve rod base 504 ' of inner cavity 8 ' and 8 end of outer valve, 504 outer end head of valve rod by safety belt 705 and
Fixed point connection on same axis, smoke inductor 704 is overlapped in the middle part of safety belt 705 " electric appliance fuse；" the end of sleeve II 2
Between face and corresponding 8 inner face of outer valve be arranged compressed spring 4 wrap up valve rod 504 inner segment, 504 outer end head of valve rod with
The outer segment that one bellows seal 300 wraps up valve rod 504 is set between adjacent 8 outer end face of outer valve；Sleeve II 2 " has cylinder
The liner of shape；Ball 707 is set between the annular inner wall of valve body 2 and the annular inner wall of outer valve 8.
It is open state shown in attached drawing 17, sleeve in the open state always in the pulling force effect lower valve body 2 of safety belt 705
The recirculation hole 103 of pipe II 2 " ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and deferent segment 1 " and inner cavity 200
Perforation, flow of media.
It is Abnormal Shutdown state shown in attached drawing 18, since the abnormal situation full of smoke such as fire, dielectric leakage occurs
Under, smoke inductor 704 " opens electric appliance fuse after perception and blows safety belt 705 rapidly, act in the elastic force of compressed spring 4
Under, valve body 2 is mobile to 1 ' direction of input section, makes sleeve II 2 " ring-shaped valve seats 201 of throat is closely affixed with annular spool 101,
Cut off medium flow field.
Embodiment ten
Referring to attached drawing 19,20, dual-valve body hedging emergency cut-off core pipe valve described in the present embodiment is promptly cut for earthquake
It is disconnected；The valve core tube 1 for being wrapped in 8 inner cavity 8 ' of outer valve be the coaxial sleeve I 2 through valve body 2 of fixing piece ', in valve body 2
Chamber 200 and valve body 2 sleeve II 2 "；There is axial interlayer 100 in the middle part of valve core tube 1, interlayer 100 is by kernel and kernel radial spoke
The intermediate pipeline section for the valve core tube 1 penetrated is constituted, and two axial end faces of 100 kernel of interlayer are ligulate triangle slope surfaces 100 '；Annular plate valve
The sealing surface of core 101 is arc slope and sleeve II 2, and " ring-shaped valve seats 201 of throat constitutes sealing pair；Input section 1 ' and sleeve I
2 ' and the engaging portion of deferent segment 1 " with sleeve II 2 " be respectively provided with bellows seal 300；Input section 1 ' and deferent segment 1 " have two
A radial direction recirculation hole 103；Axially a piece valve rod 504 of connection, valve rod 504 pass through inner cavity 8 ' and outer valve 8 to I 2 ' end direction of sleeve
The valve rod base 504 ' of end, 504 outer end head of valve rod are sequentially connected safety belt 705 and inclined-plane iron block 509 ", iron block 509 " and it is same
The permanent magnet 509 of fixed point matches and is affixed on one axis, is weight 708 in the middle part of safety belt 705；The outer head of valve rod 504
One bellows seal 300 is set between adjacent 8 outer end face of outer valve and wraps up 504 outer segment of valve rod, I 2 ' end face of sleeve with
Bellows seal 300 is set between corresponding 8 inner face of outer valve and wraps up 504 inner segment of valve rod；I 2 ' end face of sleeve and opposite
Compressed spring 4 is set between 8 inner face of outer valve answered；Under static state, the pulling force that the reverse elasticity of compressed spring 4 is formed
The magnetic force of the gravity < permanent magnet 509 of+weight 708, when earthquake occurs, pulling force that the reverse elasticity of compressed spring 4 is formed+
The magnetic force > for the gravity > permanent magnet 509 that weight 708 is beated breaks the power of safety belt 705；Sleeve I 2 ' have tubular liner；Valve
Ball 707 is arranged in lower half portion between the annular inner wall of body 2 and the annular inner wall of outer valve 8.
It is open state, under normal circumstances, iron block 509 " is affixed with permanent magnet 509, valve body 2 always shown in attached drawing 19
In the open state, the ring-shaped valve seats 201 of I 2 ' throat of sleeve leaves annular spool 101, input section 1 ' and deferent segment 1 " circulation
Hole 103 and inner cavity 200 penetrate through, flow of media.
Shown in attached drawing 20, it is Abnormal Shutdown state, earthquake occurs, during vibration, weight 708 moves up and down its gravity
Under the pulling force effect that the reverse elasticity of+compressed spring 4 is formed, iron block 509 " disengage permanent magnet 509, valve body 2 to deferent segment 1 "
Direction is mobile, and ring-shaped valve seats 201 and 101 moment of annular spool of I 2 ' throat of sleeve are closely affixed, and cuts off medium flow field.
Restore in use, pulling valve rod 504, makes iron block 509 " to be affixed again with permanent magnet 509, weight 708, which is located at, to be protected
Dangerous 705 middle part of band.
Can also be overlapped when needing multiple protective, on safety belt 705 can manually rope, prevent the fuse cord of fire
705 ', and prevent the smoke inductor 704 of various poisonous and harmful, inflammable and explosive dielectric leakages " electric appliance fuse.
Claims (10)
1. dual-valve body hedging emergency cut-off core pipe valve, which is characterized in that be wrapped in the valve core tube (1) of outer valve (8) inner cavity (8 ')
For the coaxial sleeve II through the sleeve I (2 ') of valve body (2), valve body (2) inner cavity (200) and valve body (2) of fixing piece
(2″)；Have axial interlayer (100) in the middle part of valve core tube (1), interlayer (100) is by the valve core tube (1) of kernel and kernel radial radiation
Intermediate pipeline section is constituted；The axially adjacent both sides of interlayer (100) are at least one diameter of input section (1 ') and deferent segment (1 ") respectively
To recirculation hole (103)；Around the annular spool (101) and sleeve I (2 ') of interlayer (100) and at least one sleeve of sleeve II (2 ")
The ring-shaped valve seats (201) of pipe throat constitutes sealing pair；Difference >=0 of the outer diameter of input section (1 ') and deferent segment (1 ")；Input section
(1 ') and sleeve I (2 ') and deferent segment (1 ") and sleeve II (2 ") are that shaft hole mode cooperates the setting of its at least one engaging portion to seal；
Iron block (509 ") are arranged at least one sleeve end face of sleeve I (2 ') and sleeve II (2 "), corresponding outer valve (8) inner end
The permanent magnet (509) to match is arranged in face；After iron block (509 ") disengages permanent magnet (509), under the action of potential energy, valve body
(2) make axial movement emergency cut-off medium flow field in outer valve (8) inner cavity (8 ').
2. dual-valve body hedging emergency cut-off core pipe valve, which is characterized in that be wrapped in the valve core tube (1) of outer valve (8) inner cavity (8 ')
For the coaxial sleeve II through the sleeve I (2 ') of valve body (2), valve body (2) inner cavity (200) and valve body (2) of fixing piece
(2″)；Have axial interlayer (100) in the middle part of valve core tube (1), interlayer (100) is by the valve core tube (1) of kernel and kernel radial radiation
Intermediate pipeline section is constituted；The axially adjacent both sides of interlayer (100) are at least one diameter of input section (1 ') and deferent segment (1 ") respectively
To recirculation hole (103)；Around the annular spool (101) and sleeve I (2 ') of interlayer (100) and at least one sleeve of sleeve II (2 ")
The ring-shaped valve seats (201) of pipe throat constitutes sealing pair；Difference >=0 of the outer diameter of input section (1 ') and deferent segment (1 ")；Input section
(1 ') and sleeve I (2 ') and deferent segment (1 ") and sleeve II (2 ") are that shaft hole mode cooperates the setting of its at least one engaging portion to seal；
At least one sleeve end direction of sleeve I (2 ') and sleeve II (2 ") axially wear by a piece valve rod (504) of connection, valve rod (504)
Cross the valve rod base (504 ') of inner cavity (8 ') and outer valve (8) end；At least one sleeve end of sleeve I (2 ') and sleeve II (2 ")
Iron block (509 ") are arranged in face, and the permanent magnet (509) to match is arranged in corresponding outer valve (8) inner face；Iron block
(509 ") after disengaging permanent magnet (509), under the action of potential energy, valve body (2) is moved axially in outer valve (8) inner cavity (8 ')
Emergency cut-off medium flow field.
3. dual-valve body hedging emergency cut-off core pipe valve, which is characterized in that be wrapped in the valve core tube (1) of outer valve (8) inner cavity (8 ')
For the coaxial sleeve II through the sleeve I (2 ') of valve body (2), valve body (2) inner cavity (200) and valve body (2) of fixing piece
(2″)；Have axial interlayer (100) in the middle part of valve core tube (1), interlayer (100) is by the valve core tube (1) of kernel and kernel radial radiation
Intermediate pipeline section is constituted；The axially adjacent both sides of interlayer (100) are at least one diameter of input section (1 ') and deferent segment (1 ") respectively
To recirculation hole (103)；Around the annular spool (101) and sleeve I (2 ') of interlayer (100) and at least one sleeve of sleeve II (2 ")
The ring-shaped valve seats (201) of pipe throat constitutes sealing pair；Difference >=0 of the outer diameter of input section (1 ') and deferent segment (1 ")；Input section
(1 ') and sleeve I (2 ') and deferent segment (1 ") and sleeve II (2 ") are that shaft hole mode cooperates the setting of its at least one engaging portion to seal；
At least one sleeve end direction of sleeve I (2 ') and sleeve II (2 ") axially wear by a piece valve rod (504) of connection, valve rod (504)
The valve rod base (504 ') of inner cavity (8 ') and outer valve (8) end is crossed, valve rod base (504 ') is arranged radially safety pin (704), safety
Sell the duct of (704) insertion valve rod base (504 ') and the counterbore of valve rod (504)；After safety pin (704) is cut off, in the work of potential energy
Under, valve body (2) makees axial movement emergency cut-off medium flow field in outer valve (8) inner cavity (8 ').
4. dual-valve body hedging emergency cut-off core pipe valve, which is characterized in that be wrapped in the valve core tube (1) of outer valve (8) inner cavity (8 ')
For the coaxial sleeve II through the sleeve I (2 ') of valve body (2), valve body (2) inner cavity (200) and valve body (2) of fixing piece
(2″)；Have axial interlayer (100) in the middle part of valve core tube (1), interlayer (100) is by the valve core tube (1) of kernel and kernel radial radiation
Intermediate pipeline section is constituted；The axially adjacent both sides of interlayer (100) are at least one diameter of input section (1 ') and deferent segment (1 ") respectively
To recirculation hole (103)；Around the annular spool (101) and sleeve I (2 ') of interlayer (100) and at least one sleeve of sleeve II (2 ")
The ring-shaped valve seats (201) of pipe throat constitutes sealing pair；Difference >=0 of the outer diameter of input section (1 ') and deferent segment (1 ")；Input section
(1 ') and sleeve I (2 ') and deferent segment (1 ") and sleeve II (2 ") are that shaft hole mode cooperates the setting of its at least one engaging portion to seal；
At least one sleeve end direction of sleeve I (2 ') and sleeve II (2 ") axially wear by a piece valve rod (504) of connection, valve rod (504)
The valve rod base (504 ') of inner cavity (8 ') and outer valve (8) end is crossed, valve rod (504) outer end head is iron block (509 ") and same axis
The permanent magnet (509) of line fixed point to match is affixed；After iron block (509 ") axially disengages permanent magnet (509), in potential energy
Under the action of, valve body (2) makees axial movement emergency cut-off medium flow field in outer valve (8) inner cavity (8 ').
5. dual-valve body hedging emergency cut-off core pipe valve, which is characterized in that be wrapped in the valve core tube (1) of outer valve (8) inner cavity (8 ')
For the coaxial sleeve II through the sleeve I (2 ') of valve body (2), valve body (2) inner cavity (200) and valve body (2) of fixing piece
(2″)；Have axial interlayer (100) in the middle part of valve core tube (1), interlayer (100) is by the valve core tube (1) of kernel and kernel radial radiation
Intermediate pipeline section is constituted；The axially adjacent both sides of interlayer (100) are at least one diameter of input section (1 ') and deferent segment (1 ") respectively
To recirculation hole (103)；Around the annular spool (101) and sleeve I (2 ') of interlayer (100) and at least one sleeve of sleeve II (2 ")
The ring-shaped valve seats (201) of pipe throat constitutes sealing pair；Difference >=0 of the outer diameter of input section (1 ') and deferent segment (1 ")；Input section
(1 ') and sleeve I (2 ') and deferent segment (1 ") and sleeve II (2 ") are that shaft hole mode cooperates the setting of its at least one engaging portion to seal；
At least one sleeve end direction of sleeve I (2 ') and sleeve II (2 ") axially wear by a piece valve rod (504) of connection, valve rod (504)
Cross the valve rod base (504 ') of inner cavity (8 ') and outer valve (8) end, valve rod (504) outer end head be safety belt (705) with it is same
The fixed point of axis connects；After safety belt (705) disconnects, under the action of potential energy, valve body (2) is in outer valve (8) inner cavity (8 ')
Make axial movement emergency cut-off medium flow field.
6. dual-valve body hedging emergency cut-off core pipe valve, which is characterized in that be wrapped in the valve core tube (1) of outer valve (8) inner cavity (8 ')
For the coaxial sleeve II through the sleeve I (2 ') of valve body (2), valve body (2) inner cavity (200) and valve body (2) of fixing piece
(2″)；Have axial interlayer (100) in the middle part of valve core tube (1), interlayer (100) is by the valve core tube (1) of kernel and kernel radial radiation
Intermediate pipeline section is constituted；The axially adjacent both sides of interlayer (100) are at least one diameter of input section (1 ') and deferent segment (1 ") respectively
To recirculation hole (103)；Around the annular spool (101) and sleeve I (2 ') of interlayer (100) and at least one sleeve of sleeve II (2 ")
The ring-shaped valve seats (201) of pipe throat constitutes sealing pair；Difference >=0 of the outer diameter of input section (1 ') and deferent segment (1 ")；Input section
(1 ') and sleeve I (2 ') and deferent segment (1 ") and sleeve II (2 ") are that shaft hole mode cooperates the setting of its at least one engaging portion to seal；
At least one sleeve end direction of sleeve I (2 ') and sleeve II (2 ") axially wear by a piece valve rod (504) of connection, valve rod (504)
The valve rod base (504 ') of inner cavity (8 ') and outer valve (8) end is crossed, valve rod (504) outer end head is sequentially connected safety belt (705)
With iron block (509 "), when valve opening, permanent magnet (509) phase of iron block (509 ") and fixed point on same axis to match
Patch；After safety belt (705) and any one of iron block (509 ") and permanent magnet (509) mechanism disconnect, under the action of potential energy,
Valve body (2) makees axial movement emergency cut-off medium flow field in outer valve (8) inner cavity (8 ').
7. according to dual-valve body hedging emergency cut-off core pipe valve described in claim 5 or 6, which is characterized in that the safety belt
(705) middle part overlaps fuse cord (705 ').
8. according to dual-valve body hedging emergency cut-off core pipe valve described in claim 5 or 6, which is characterized in that the safety belt
(705) the electric appliance fuse of middle part overlap joint smoke inductor (704 ").
9. according to any dual-valve body hedging emergency cut-off core pipe valve of claim 1 to 6, which is characterized in that the interlayer
(100) two axial end faces of kernel are ligulate triangle slope surfaces (100 ').
10. according to any dual-valve body hedging emergency cut-off core pipe valve of claim 1 to 6, which is characterized in that the sleeve
Compressed spring is set between I (2 ') and sleeve II (2 ") one of sleeve end face and corresponding outer valve (8) inner face
(4)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810275738.7A CN110319250A (en) | 2018-03-30 | 2018-03-30 | Dual-valve body hedging emergency cut-off core pipe valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810275738.7A CN110319250A (en) | 2018-03-30 | 2018-03-30 | Dual-valve body hedging emergency cut-off core pipe valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110319250A true CN110319250A (en) | 2019-10-11 |
Family
ID=68111360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810275738.7A Withdrawn CN110319250A (en) | 2018-03-30 | 2018-03-30 | Dual-valve body hedging emergency cut-off core pipe valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110319250A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1944739A (en) * | 1930-04-25 | 1934-01-23 | Nathan C Hunt | Valve |
| DE2425139A1 (en) * | 1973-04-11 | 1975-11-27 | Hubert Skibowski | Connection for relatively movable pipes - has central vee connector releasable at preset tensile load and anular channels to retain fluid |
| CN1252740A (en) * | 1997-04-21 | 2000-05-10 | 斯文·埃里克·英厄马尔·哈尔托普 | Spray device with nozzle and valve |
| CN204477409U (en) * | 2015-01-04 | 2015-07-15 | 李国栋 | Pipeline burst automatic safety device |
| EP3249121A1 (en) * | 2016-05-25 | 2017-11-29 | Applegarden GmbH | Closing device |
-
2018
- 2018-03-30 CN CN201810275738.7A patent/CN110319250A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1944739A (en) * | 1930-04-25 | 1934-01-23 | Nathan C Hunt | Valve |
| DE2425139A1 (en) * | 1973-04-11 | 1975-11-27 | Hubert Skibowski | Connection for relatively movable pipes - has central vee connector releasable at preset tensile load and anular channels to retain fluid |
| CN1252740A (en) * | 1997-04-21 | 2000-05-10 | 斯文·埃里克·英厄马尔·哈尔托普 | Spray device with nozzle and valve |
| CN204477409U (en) * | 2015-01-04 | 2015-07-15 | 李国栋 | Pipeline burst automatic safety device |
| EP3249121A1 (en) * | 2016-05-25 | 2017-11-29 | Applegarden GmbH | Closing device |
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Application publication date: 20191011 |
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| WW01 | Invention patent application withdrawn after publication |