Keep away calamity emergency cut-off core pipe valveTechnical field
Calamity emergency cut-off core pipe valve of keeping away of the invention belongs to valve field, is the core pipe stem nut series of my original inventionIn conventional core pipe valve plate block the subfamily from force control valve.
Background technique
Currently, earthquake bring destructive power is very big, the secondary disaster that nuclear power, gas accidents generate in earthquake to country andHuge damage is immeasurable caused by the people's lives and property and environment.
When the leakage of combustion gas and fire occur, if gas pipeline, the explosion accident of initiation cannot be closed in timeIt is fearful.
Due to do not have it is a kind of can be relied on oneself the quick action emergency valve of control in the case where fire incident by medium so that easilyThe leakage for firing explosive medium causes huge loss in fire incident.
Currently, it is applied to the quick action emergency valve of powder industry, and it is also very rare, with powder industrial expansion and awareness of safetyRaising and lesson written in blood, the application that the quick action emergency valve of powder industry can be popularized.
Currently, there are no wide for the quick action emergency valve being widely used under the earthquake state of inflammable, explosive, poisonous noxious industryGeneral application, so, it is accordingly required in particular to a kind of economical and practical, reliability and the extremely strong self-operated type of safety automatically control quick action emergency valveTo ensure life, equipment, resource and the safety of environment.
Summary of the invention
The object of the present invention is to provide calamity emergency cut-off core pipe valve is kept away, overcome under existing above-mentioned crisis state, it cannot be tightThe defect of eager disconnected medium, meets the needs of production, safety, energy conservation and environmental protection.
The present invention be by following technical solution come be attained in that the valve core tube for connection pressure vessel, pressureThe coaxial sleeve II through the sleeve I of valve body, body cavity and valve body of the fixing piece of equipment and medium pipe network；SpoolThere is axial interlayer in the middle part of pipe, interlayer is made of the intermediate pipeline section of the valve core tube of kernel and kernel radial radiation；The axial phase of interlayerAdjacent both sides are at least one radial recirculation hole of input section and deferent segment respectively；Annular spool and II throat of sleeve around interlayerRing-shaped valve seats constitute sealing pair；Difference >=0 of the outer diameter of input section and deferent segment；Input section and sleeve I and deferent segment and sleeveII cooperates the setting sealing of its at least one engaging portion for shaft hole mode；Permanent magnet is set in deferent segment end, in II end of sleeveWeight is set, and ordinary circumstance lower heavy punch is close to permanent magnet, and valve is in normally open；When weight and permanent magnet disengageIt waits, potential energy moves axially valve body relative to valve core tube, cuts off medium flow field.
The present invention can also be attained in that by following technical solution the valve core tube for connection pressure vessel,The coaxial sleeve II through the sleeve I of valve body, body cavity and valve body of the fixing piece of press device and medium pipe network；There is axial interlayer in the middle part of valve core tube, interlayer is made of the intermediate pipeline section of the valve core tube of kernel and kernel radial radiation；The axis of interlayerIt is at least one radial recirculation hole of input section and deferent segment respectively to adjacent both sides；Around the annular spool and sleeve II of interlayerThe ring-shaped valve seats of throat constitutes sealing pair；Difference >=0 of the outer diameter of input section and deferent segment；Input section and sleeve I and deferent segment withSleeve II is that shaft hole mode cooperates the setting sealing of its at least one engaging portion；The end of deferent segment end mounting permanent magnet and sleeve IIPortion is attracting to be affixed；The weight that can be beated when earthquake occurs is arranged in II end of sleeve；When II end of sleeve disengages, potential energyIt moves axially valve body relative to valve core tube, cuts off medium flow field.
The present invention can also be attained in that by following technical solution the valve core tube for connection pressure vessel,The coaxial sleeve II through the sleeve I of valve body, body cavity and valve body of the fixing piece of press device and medium pipe network；There is axial interlayer in the middle part of valve core tube, interlayer is made of the intermediate pipeline section of the valve core tube of kernel and kernel radial radiation；The axis of interlayerIt is at least one radial recirculation hole of input section and deferent segment respectively to adjacent both sides；Around the annular spool and sleeve II of interlayerThe ring-shaped valve seats of throat constitutes sealing pair；Difference >=0 of the outer diameter of input section and deferent segment；Input section and sleeve I and deferent segment withSleeve II is that shaft hole mode cooperates the setting sealing of its at least one engaging portion；It is arranged between II end of sleeve and deferent segment end and protectsDangerous band, the device that safety belt overlap joint can be such that safety belt disconnects；When safety belt disconnects, potential energy makes valve body relative to spoolPipe moves axially, and cuts off medium flow field.
The safety belt overlaps the fuse of the fuse cord, the safety belt that can fuse that can blow safety belt, can breakThe rope of safety belt.
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 alsoTo be that kernel is axially forced to two parts of pipeline section among valve core tube and is constituted；Two axial end faces of the interlayer kernel are ligulates threeAngle slope surface 100 ' improves conveyance capacity from interflow is diverted to greatest extent, realizes that medium flow direction is steady, flow resistance is small, low pressureDamage；The axial end face of interlayer kernel can be spherical surface, is also possible to arc lower guide surface, can also be plane and concave surface.
At least one sleeve of the sleeve I and sleeve II has a liner of tubular, tubular liner be located at sleeve throat just withRing-shaped valve seats is integrally formed.
Have between the annular outer wall of the annular inner wall and valve core tube of the sleeve I and sleeve II ball be attached to sleeve I andThe annular inner wall of sleeve II.
The potential energy is that input section outer diameter is less than the outer diameter of deferent segment, therefore Jie between two axial end faces of inner cavityMatter forms pressure difference.
The potential energy is that for valve body perpendicular to ground, valve body self weight is sagging.
The potential energy is that extension spring is arranged between I end of sleeve and input section end, can also deferent segment end withCompressed spring is arranged between II end in sleeve.
In conclusion calamity emergency cut-off core pipe valve of keeping away of the invention has the active effect that
1, structure is simple, convenient for manufacture；
2, safety, highly reliable；
3, sealing effect is good；
4, it in emergency circumstances, can rely on oneself moment and close valve；
5, long service life, cost performance are high；
6, axial circulation, flow resistance are small；
7, external connection power and actuator are not needed；
8, operation and maintenance expense is reduced, production efficiency is improved.
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 5,6,7,8 is the full the schematic diagram of the section structure in longitudinal direction of third embodiment of the invention.
1- valve core tube, 1 '-input section, 1 in figure "-deferent segment, 100- interlayer, 100 '-rise guide functions band indentThe triangle slope surface of circular arc, 101- annular spool, 103- recirculation hole, 2- valve body, 2 '-sleeves I, 2 are " in-sleeve II, 200-Chamber, 201- ring-shaped valve seats, 300- bellows seal, 302- sealing ring, 4 '-extension springs, 5- rope, 509- permanent magnet,703 '-fuses, 705- safety belt, 705 '-fuse cords, 707- ball, 708- weight.
Specific embodiment
Embodiment summary:
The 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 2Sleeve II 2 "；There is 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 radiationBetween pipeline section constitute；The axially adjacent both sides of interlayer 100 are input section 1 ' and deferent segment 1 respectively " at least one radial recirculation hole103；Around the annular spool 101 and sleeve I 2 ' and sleeve II 2 of interlayer 100 " at least one sleeve throat ring-shaped valve seats201 constitute sealing pair；Input section 1 ' and deferent segment 1 " outer diameter difference >=0；Input section 1 ' and sleeve I 2 ' and deferent segment 1 are " with sleevePipe II 2 " is that shaft hole mode cooperates the setting sealing of its at least one engaging portion；It is set between the end of deferent segment 1 " end and sleeve II 2 "Set disconnecting device；When disconnecting device disconnects, potential energy moves axially valve body 2 relative to valve core tube 1, cuts off mediumStream.
Embodiment one
Referring to attached drawing 1,2, calamity emergency cut-off core pipe valve is kept away described in the present embodiment, the valve core tube 1 is that fixing piece is coaxialTo the sleeve I 2 through valve body 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 1100, 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 interlayerEnd face is spherical surface；The axially adjacent both sides of interlayer 100 are input section 1 ' and deferent segment 1 respectively " four well-balanced arrangements radial directionRecirculation hole 103；Around 101 sealing surface of the annular spool " ring-shaped valve seats 201 of throat that is unidirectional slope surface and sleeve II 2 of interlayer 100Constitute 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 seal300；1 ' outer diameter of input section is less than deferent segment 1 " outer diameter, therefore, medium between two axial end faces of inner cavity 200 forms pressurePower is poor；In deferent segment 1, " permanent magnet 509 is arranged in end, in sleeve II 2, and " weight 708, ordinary circumstance lower heavy punch is arranged in end708 are close to permanent magnet 509, and valve is in normally open.
It is open state, weight 708 is close to permanent magnet 509, at this point, two axial ends of inner cavity 200 shown in attached drawing 1The thrust that pressure medium difference between face is formed can't reach the power of dragging weight 708, input section 1 ' and deferent segment 1 " streamThrough-hole 103 and inner cavity 200 penetrate through, flow of media.
Be Abnormal Shutdown state shown in attached drawing 2, one, the pressure medium superelevation of pipe network, two axial end faces of inner cavity 200 itBetween pressure medium difference formed thrust drag weight 708；Two, when an earthquake occurs, since the vibration of earthquake makes weight 708 beatPermanent magnet 509 is disengaged, the thrust that the pressure medium difference between two axial end faces of inner cavity 200 is formed pushes valve body 2 to defeatedIt is mobile entering 1 ' direction of section, sleeve II 2 " ring-shaped valve seats 201 of throat is closely affixed with 101 moment of annular spool, and medium is cut off,It avoids that secondary disaster occurs.
Embodiment two
Referring to attached drawing 3,4, calamity emergency cut-off core pipe valve is kept away described in the present embodiment, the valve core tube 1 is that fixing piece is verticalIn ground it is coaxial from bottom to up through the sleeve I 2 of valve body 2 ', the sleeve II 2 of 2 inner cavity 200 of valve body and valve body 2 "；EveryTwo axial end faces of 100 kernel of layer are ligulate triangle slope surfaces 100 '；" there are two radial circulations for input section 1 ' and deferent segment 1Hole 103；101 sealing surface of annular spool is two-way slope surface and sleeve II 2, and " ring-shaped valve seats 201 of throat constitutes sealing pair；Input section1 ' is respectively provided with bellows seal 300 with the engaging portion of sleeve I 2 ' and deferent segment 1 " and sleeve II 2 "；" the end installation of deferent segment 1Inclined-plane permanent magnet 509, sleeve II 2 " end be and the matched inclined-plane of permanent magnet 509；" radial the two of end of sleeve II 2A weight 708 is respectively stretched on side, and sleeve II 2 " has the liner of tubular.
It is open state shown in attached drawing 3, the upper surface of valve body 2, sleeve II 2 is sucked in the magnetic force of permanent magnet 509 always "The ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 passed through with inner cavity 200It is logical, flow of media.
Shown in attached drawing 4, for Abnormal Shutdown state, one, generation fire incident, high fire is directly burned to permanent magnet 509, foreverLong magnet 509 loses magnetism, and valve body 2 slides downwards；Two, earthquake occurs, due to the vibration of earthquake, disengages the bounce of weight 708Permanent magnet 509, valve body 2 are self-possessed sagging, sleeve II 2 " ring-shaped valve seats 201 of throat is closely affixed with 101 moment of annular spool,Medium is cut off, and avoids secondary disaster.
Embodiment three
Referring to attached drawing 5,6,7,8, calamity emergency cut-off core pipe valve is kept away described in the present embodiment, the two of 100 kernel of interlayerA axial end face is spherical surface；" there are four radial recirculation holes 103 for input section 1 ' and deferent segment 1；It surround and is embedded in interlayer 100The sealing surface of annular spool 101 is that " ring-shaped valve seats 201 of throat constitutes sealing for arc slope and sleeve I 2 ' and sleeve II 2It 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；Sleeve I 2 'And sleeve II 2 " annular inner wall and valve core tube 1 annular outer wall between have ball 707, be attached to sleeve I 2 ' and sleeve II 2 "Annular inner wall；Safety belt 705 is set between sleeve II 2 " end and deferent segment 1 " end, and safety belt 705 overlaps fuse cord705 ', circuit fuse 703 ', rope 5；Extension spring 4 ' is set between I 2 ' end of input section 1 ' and sleeve；Sleeve I 2 ' withSleeve II 2 " has the liner of tubular.
Shown in attached drawing 5, being open state, push valve body 2 to deferent segment 1, " direction is mobile, and safety belt 705 is connected to alwaysBetween sleeve II 2 " end and deferent segment 1 " end, " ring-shaped valve seats 201 of throat leaves annular spool 101 to sleeve II 2, inputSection 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 perforation, flow of media.
It is Abnormal Shutdown state shown in attached drawing 6, at this point, fire occurs in environment, fuse cord 705 ' causes safety belt 705It blows, under the pulling force effect of extension spring 4 ', valve body 2 is mobile to 1 ' direction of input section, " the ring-shaped valve seats of throat of sleeve II 2201 are closely affixed with annular spool 101, cut off medium flow field.
It is Abnormal Shutdown state shown in attached drawing 7, the artificial or sensing device at this point, the interior perhaps pipeline of environment breaks downControl circuit, fuse 703 ' blow safety belt 705, and under the pulling force effect of extension spring 4 ', valve body 2 is to 1 ' direction of input sectionMobile, " ring-shaped valve seats 201 of throat is closely affixed sleeve II 2 with annular spool 101, cuts off medium flow field.
Shown in attached drawing 8, stretched for Abnormal Shutdown state at this point, artificial pulling rope 5 causes safety belt 705 to breakUnder the pulling force effect of spring 4 ', valve body 2 is mobile to 1 ' direction of input section, " the ring-shaped valve seats 201 and annular plate valve of throat of sleeve II 2Core 101 is closely affixed, and cuts off medium flow field.