CN112431954A - Fire-proof self-cut-off valve - Google Patents
Fire-proof self-cut-off valve Download PDFInfo
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- CN112431954A CN112431954A CN202011312232.2A CN202011312232A CN112431954A CN 112431954 A CN112431954 A CN 112431954A CN 202011312232 A CN202011312232 A CN 202011312232A CN 112431954 A CN112431954 A CN 112431954A
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- valve body
- valve
- fire
- sleeve
- cover
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- 230000006835 compression Effects 0.000 claims abstract description 17
- 238000007906 compression Methods 0.000 claims abstract description 17
- 230000001502 supplementing effect Effects 0.000 claims abstract description 16
- 230000002265 prevention Effects 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 238000003825 pressing Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000003063 flame retardant Substances 0.000 claims description 5
- 230000009970 fire resistant effect Effects 0.000 claims description 3
- 238000005253 cladding Methods 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims description 2
- 230000008676 import Effects 0.000 claims 3
- 230000007246 mechanism Effects 0.000 abstract description 6
- 239000002609 medium Substances 0.000 description 7
- 239000002360 explosive Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 229910000743 fusible alloy Inorganic materials 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000006163 transport media Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
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
- F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
- F16K17/38—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature
- F16K17/383—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature the valve comprising fusible, softening or meltable elements, e.g. used as link, blocking element, seal, closure plug
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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
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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
- F16K27/02—Construction of housing; Use of materials therefor of lift 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
- 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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- 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
- F16K49/00—Means in or on valves for heating or cooling
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention discloses a fire hazard prevention self-actuated block valve which comprises a valve body, wherein an inlet and an outlet are respectively arranged at two ends of the valve body, a communicating hole communicated with the inlet and the outlet is formed in a valve clack in the valve body, an opening communicated with the inlet is formed in the top of the valve body, the top of the valve body is connected with a cover plate used for sealing the opening through a bolt, a cylinder body and a sleeve with the top end sealed are sequentially arranged at the top of the cover plate from bottom to top, a side plate on the outer side of the bottom end of the sleeve is connected with the cover plate through a tensioning bolt, and a pressure plate is. According to the fire hazard prevention automatic shutoff valve, the protection medium in the protection mechanism can protect the valve body when a fire hazard occurs, the valve body is prevented from being deformed due to long-time fire burning, the compression spring is gradually reduced due to high-temperature thrust when the fire hazard occurs, the spring force supplementing device can enable the spring force of the compression spring to return to a normal value, and the shutoff safety of the valve body is greatly improved.
Description
Technical Field
The invention relates to the field of fire valves, in particular to a fire hazard prevention self-stopping valve.
Background
Valves are plumbing accessories used to open and close a pipe, control flow direction, regulate and control parameters of the transport medium (temperature, pressure and flow). According to the function, the valve can be divided into a shut-off valve, a check valve, a regulating valve and the like, wherein the valve is a control part in a fluid conveying system and has the functions of stopping, regulating, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like. Valves used in fluid control systems range in variety and size from the simplest shut-off valves to the variety of valves used in extremely complex autonomous systems.
Most of current valves are manual control type, and some adopt automatically controlled, nevertheless when meetting conflagration or explosion, to the pipeline of inflammable and explosive gas and liquid, manual control has danger, and automatically controlled then loses efficacy easily, and valve self also can cause the damage to lose efficacy because of high temperature simultaneously, and the security is poor.
Disclosure of Invention
Solves the technical problem
Aiming at the defects of the prior art, the invention provides a fire prevention self-shut-off valve, which solves the problems that when a fire disaster or an explosion occurs, the valve is damaged and invalid due to high temperature and the safety is poor when the valve is used for conveying flammable and explosive gas and liquid.
Technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a fire-proof self-acting cut-off valve comprises a valve body, wherein an inlet and an outlet are respectively arranged at two ends of the valve body, a communicating hole communicated with the inlet and the outlet is formed in a valve clack in the valve body, an opening communicated with the inlet is formed in the top of the valve body, a cover plate used for sealing the opening is connected to the top of the valve body through a bolt, a cylinder body and a sleeve with a sealed top end are sequentially arranged on the top of the cover plate from bottom to top, a side plate outside the bottom end of the sleeve is connected with the cover plate through a tensioning bolt, a pressure plate is connected in the cylinder body in a sliding mode, a compression spring is arranged between the upper surface of the pressure plate and a top plate of the sleeve, a valve rod is connected to the center of the bottom surface of the pressure plate, penetrates through the cover plate and extends to an inner cavity of the valve body to be connected with a, the piston is connected with the inner wall of the guide pipe in a sliding mode, an air cavity is formed among the bottom surface of the pressure plate, the inner wall of the cylinder body and the upper surface of the cover plate, a branch pipe communicated with the air cavity is arranged on the cover plate, and an fusible screw plug is arranged at one end, far away from the cover plate, of the branch pipe.
The outside of valve body is equipped with protection machanism, and protection machanism is formed with the protection chamber including the cladding in the outside cover that presss from both sides of valve body between the cover that presss from both sides and the valve body, and the bottom that presss from both sides the cover is equipped with the fire-resistant blowoff valve with protection chamber intercommunication, and the top of pressing from both sides the cover side is equipped with the connecting pipe with protection chamber intercommunication, and the one end that the protection chamber was kept away from to the connecting pipe is equipped with the bleeder valve, and the side.
Further inject, telescopic top is equipped with the spring and mends power device, and the spring mends power device include with sleeve sliding connection's top dish, with sleeve top intercommunication extension pipe, with extension pipe inner wall sliding connection's preforming, compression spring's top offsets with the bottom surface of top dish, is equipped with bimetal expansion sheet between top dish and the preforming, the top of extension pipe is sealed, and the through-hole rather than the inner chamber intercommunication is seted up to the side of extension pipe, and the top threaded connection of extension pipe has adjusting screw, and adjusting screw's bottom offsets with the center of pressing the upper surface of piece.
Further limiting, a limiting rod is arranged in the center of the bottom surface of the pressing plate and is in sliding insertion connection with the center of the top plate.
Further inject, the outside cover of extension pipe is equipped with waterproof cover.
Further limit, the inlet of the valve body is provided with a pipeline fire retardant device.
Further inject, annular seal groove has all been seted up at the both ends of valve body, is equipped with the gasket in the seal groove.
Further limiting, a three-way valve and an air supplementing port are arranged on the branch pipe, and an air supplementing screw plug is arranged at the air supplementing port.
Further inject, be equipped with position indicator on the sleeve, the outside limit shell of sleeve is located to this position indicator, and the middle part of limit shell side is equipped with the viewing aperture, and the bottom of limit shell is passed through the bolt and is connected with the limit dish, and the interior ring of limit shell is equipped with the slide bar, and the bottom of slide bar is passed the upper surface connection of limit dish and pressure disk, and the top of slide bar is equipped with the scale.
Further, the medium in the protection cavity is clear water.
Compared with the prior art, the invention has the following beneficial effects: this fire hazard prevention cuts off valve by oneself, there is compressed air in the storage of air cavity, when the conflagration breaing out, high temperature can make the fusible alloy in the fusible plug screw melt, compressed air is released from the branch pipe this moment, compression spring promotes the pressure disk and pushes down, the valve rod drives the piston and seals to intercommunicating pore department, thereby the valve is closed, the effect of pipeline to inflammable explosive gas and liquid cut off has been played, the security is high, and simultaneously, the protection medium in the protection machanism of setting can protect the valve body when the conflagration breaing out, prevent that the long time of valve body fires and produce the deformation, compression spring reduces because high temperature thrust when the conflagration breaing out gradually, spring force that spring make compression spring can reply normal value, the security of cutting of valve body has been improved greatly.
Drawings
FIG. 1 is a schematic structural diagram of the open state of the present invention;
FIG. 2 is a schematic structural diagram of a spring force compensating device according to the present invention;
FIG. 3 is a schematic view of the shielding mechanism of the present invention.
FIG. 4 is a schematic structural diagram of the closed state of the present invention.
In the figure: 1 valve body, 2 pistons, 3 protection mechanisms, 31 jackets, 32 protection cavities, 33 fireproof blow-down valves, 34 connecting pipes, 35 relief valves, 36 water injection screw plugs, 4 branch pipes, 5 air cavities, 6 valve rods, 7 cylinder bodies, 8 position indicators, 9 compression springs, 10 spring force supplementing devices, 101 top plates, 102 extension pipes, 103 adjusting screws, 104 pressing plates, 105 bimetal expansion plates, 106 through holes, 107 limiting rods, 11 sleeves, 12 side plates, 13 pressing plates, 14 tensioning bolts, 15 cover plates, 16 guide pipes, 17 through grooves, 18 waterproof covers, 19 fusible screw plugs, 20 three-way valves, 21 gas supplementing screw plugs, 22 fire-retardant pipeline devices, 23 sealing grooves and 24 gaskets.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a fire-proof self-acting cut-off valve comprises a valve body 1, wherein an inlet and an outlet are respectively arranged at two ends of the valve body 1, a communicating hole 106 communicated with the inlet and the outlet is formed in a valve clack in the valve body 1, an opening communicated with the inlet is formed in the top of the valve body 1, a cover plate 15 used for sealing the opening is connected to the top of the valve body 1 through a bolt, a cylinder body 7 and a sleeve 11 with a sealed top end are sequentially arranged at the top of the cover plate 15 from bottom to top, a side plate 12 on the outer side of the bottom end of the sleeve 11 is connected with the cover plate 15 through a tensioning bolt 14, a pressure plate 13 is slidably connected in the cylinder body 7, a compression spring 9 is arranged between the upper surface of the pressure plate 13 and a top plate of the sleeve 11, a valve rod 6 is connected to the center of the bottom surface of the pressure plate 13, the valve rod 6 penetrates through the, the surface of the guide pipe 16 is provided with a through groove 17, the bottom end of the guide pipe 16 is butted with the communicating hole 106, the piston 2 is in sliding connection with the inner wall of the guide pipe 16, an air cavity 5 is formed among the bottom surface of the pressure plate 13, the inner wall of the cylinder body 7 and the upper surface of the cover plate 15, the cover plate 15 is provided with a branch pipe 4 communicated with the air cavity 5, and one end, away from the cover plate 15, of the branch pipe 4 is provided with a fusible screw plug 19.
The protection mechanism 3 is arranged outside the valve body 1, the protection mechanism 3 comprises a jacket 31 coated outside the valve body 1, a protection cavity 32 is formed between the jacket 31 and the valve body 1, a fire-resistant blow-down valve 33 communicated with the protection cavity 32 is arranged at the bottom of the jacket 31 and used for periodically replacing clean water in the jacket 31, a connecting pipe 34 communicated with the protection cavity 32 is arranged at the top of the side surface of the jacket 31, a discharge valve 35 is arranged at one end, away from the protection cavity 32, of the connecting pipe 34, the pressure is automatically relieved when the pressure exceeds the pressure resistance of the jacket 31, the pressure in the jacket 31 is prevented from being overhigh, a water injection plug screw 36 is arranged at the side surface of the connecting pipe 34, and when water is deficient in the jacket 31, water can be injected into the. Wherein, the protection cavity 32 can store cooling liquid.
The top end of the sleeve 11 is provided with a spring force compensating device 10, the spring force compensating device 10 comprises a top disc 101 which is slidably connected with the sleeve 11, an extension pipe 102 which is communicated with the top end of the sleeve 11, a pressing sheet 104 which is slidably connected with the inner wall of the extension pipe 102, the top of the compression spring 9 is abutted to the bottom surface of the top disc 101, a bimetal expansion sheet 105 is arranged between the top disc 101 and the pressing sheet 104, the top end of the extension pipe 102 is sealed, a through hole 106 which is communicated with the inner cavity of the extension pipe 102 is formed in the side surface of the extension pipe 102, the through hole 106 is arranged to keep the air pressure in the extension pipe 102 stable, so that the top disc 101 can conveniently slide, the top end of the extension pipe 102 is in threaded connection with an adjusting screw 103, the bottom end of the adjusting screw 103 is abutted to the center of the upper surface of the pressing sheet 104, the compression amount of the. Wherein the spring force supplementing device can not be a high-temperature spring force supplementing device.
The center of the bottom surface of the pressing sheet 104 is provided with a limiting rod 107, and the limiting rod 107 is inserted in the center of the top plate 101 in a sliding manner.
The extension pipe 102 is externally sleeved with a waterproof cover 18 to prevent rainwater from directly entering the spring force compensating device 10 to be deposited.
The inlet of the valve body 1 is provided with a pipeline fire retardant device 22, and the pipeline fire retardant device 22 is used for preventing the medium ignited by the upstream pipeline from flowing downstream in case of fire and also plays a role in protecting the valve. The conduit flame arrestor 22 may be formed using flame arrestors known in the art and is not particularly limited herein.
The branch pipe 4 is provided with a three-way valve 20 and an air supplementing port, an air supplementing screw plug 21 is arranged at the air supplementing port, and compressed air in the air cavity 5 leaks due to long-time compression, so that air can be supplemented from the air supplementing port by using special tools and instruments.
Be equipped with position indicator 8 on sleeve 11, the outside limit shell of sleeve 11 is located to this position indicator 8, the middle part of limit shell side is equipped with the viewing aperture, the bottom of limit shell is passed through the bolt and is connected with limit dish 12, the ring is equipped with the slide bar in the limit shell, the bottom of slide bar is passed limit dish 12 and is connected with pressure disk 13's upper surface, the top of slide bar is equipped with the scale, the accurate position that shows pressure disk 13 of this indicating device can 360 degrees to the air volume in monitoring air chamber 5.
The medium in the protection cavity 32 is clear water, and the medium is simple in composition and low in cost.
Referring to fig. 1, when the valve is opened, compressed air is stored in the air chamber 5, the piston 2 is separated from the communicating hole, the medium in the valve body 1 can enter the outlet from the inlet through the through groove 17 and the communicating hole, when a fire occurs, as shown in fig. 4, the high temperature can melt the fusible alloy in the fusible screw plug 19, at this time, the compressed air is released from the branch pipe 4, the compression spring 9 pushes the pressure plate 13 to press down, the valve rod 6 drives the piston 2 to seal the communicating hole, so that the valve is closed, the conveying pipeline of the flammable and explosive gas and liquid is cut off, the safety is high, meanwhile, the protection medium in the protection mechanism 3 can protect the valve body 1 when a fire occurs, the valve body 1 is prevented from being deformed due to long-time fire, the compression spring 9 can gradually reduce the high-temperature thrust force when a fire occurs, the spring force supplementing device 10 can restore the spring force of the compression spring 9 to a normal value, the safety of the valve body 1 is greatly improved.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a fire hazard prevention is shut-off valve by oneself, includes the valve body, and the both ends of valve body are equipped with import and export respectively, offer the intercommunicating pore to import and export intercommunication on the valve clack in the valve body, and the top of valve body is equipped with the opening with import intercommunication, its characterized in that: the top of the valve body is connected with a cover plate for sealing an opening through a bolt, the top of the cover plate is sequentially provided with a cylinder body and a sleeve with a sealed top end from bottom to top, a side plate outside the bottom end of the sleeve is connected with the cover plate through a tension bolt, a pressure plate is connected in the cylinder body in a sliding manner, a compression spring is arranged between the upper surface of the pressure plate and a top plate of the sleeve, the center of the bottom surface of the pressure plate is connected with a valve rod, the valve rod penetrates through the cover plate and extends to an inner cavity of the valve body to be connected with a piston, the piston is positioned right above a communication hole, a guide pipe is arranged at the opening of the valve body, a through groove is arranged on the surface of the guide pipe, the bottom end of the guide pipe is butted with the communication hole, the piston is connected with the inner wall of the, one end of the branch pipe, which is far away from the cover plate, is provided with a fusible screw plug;
the outside of valve body is equipped with protection machanism, and protection machanism is formed with the protection chamber including the cladding in the outside cover that presss from both sides of valve body between the cover that presss from both sides and the valve body, and the bottom that presss from both sides the cover is equipped with the fire-resistant blowoff valve with protection chamber intercommunication, and the top of pressing from both sides the cover side is equipped with the connecting pipe with protection chamber intercommunication, and the one end that the protection chamber was kept away from to the connecting pipe is equipped with the bleeder valve, and the side.
2. A fire safety self-interrupting valve according to claim 1, wherein: the telescopic top is equipped with the spring and mends power device, and the spring is mended power device and is included the top dish with sleeve sliding connection, the extension pipe with sleeve top intercommunication, with extension intraductal wall sliding connection's preforming, compression spring's top offsets with the bottom surface of top dish, is equipped with bimetal expansion piece between top dish and the preforming, the top of extension pipe is sealed, and the through-hole rather than the inner chamber intercommunication is seted up to the side of extension pipe, and the top threaded connection of extension pipe has adjusting screw, and adjusting screw's bottom offsets with the center of pressing the upper surface of piece.
3. A fire prevention self-actuated shutoff valve according to claim 2, characterized in that: the center of the bottom surface of the pressing plate is provided with a limiting rod, and the limiting rod is in sliding insertion connection with the center of the top plate.
4. A fire prevention self-actuated shutoff valve according to claim 3, wherein: the outside cover of extension pipe is equipped with waterproof cover.
5. A fire safety self-interrupting valve according to claim 1, wherein: and a pipeline fire retardant device is arranged at the inlet of the valve body.
6. A fire safety self-interrupting valve according to claim 1, wherein: annular seal grooves are formed in the two ends of the valve body, and gaskets are arranged in the seal grooves.
7. A fire safety self-interrupting valve according to claim 1, wherein: the branch pipe is provided with a three-way valve and an air supplementing port, and the air supplementing port is provided with an air supplementing screw plug.
8. A fire safety self-interrupting valve according to claim 1, wherein: be equipped with position indicator on the sleeve, the outside limit shell of sleeve is located to this position indicator, and the middle part of limit shell side is equipped with the viewing aperture, and the bottom of limit shell is passed through the bolt and is connected with the limit dish, and the interior encircleing of limit shell is equipped with the slide bar, and the bottom of slide bar passes the upper surface connection of limit dish and pressure disk, and the top of slide bar is equipped with the scale.
9. A fire safety self-interrupting valve according to any one of claims 1 to 8, wherein: the medium in the protection cavity is clear water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011312232.2A CN112431954A (en) | 2020-11-20 | 2020-11-20 | Fire-proof self-cut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011312232.2A CN112431954A (en) | 2020-11-20 | 2020-11-20 | Fire-proof self-cut-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112431954A true CN112431954A (en) | 2021-03-02 |
Family
ID=74694441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011312232.2A Pending CN112431954A (en) | 2020-11-20 | 2020-11-20 | Fire-proof self-cut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112431954A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586774A (en) * | 2021-06-28 | 2021-11-02 | 上海外高桥造船有限公司 | Pressure balance valve for low-temperature storage |
| RU2830454C1 (en) * | 2024-04-26 | 2024-11-19 | Яна Дмитриевна Смирнова | Spring valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4075798A (en) * | 1976-05-10 | 1978-02-28 | Michiji Tazaki | Water cooling jacket for fire |
| CN202927186U (en) * | 2012-11-20 | 2013-05-08 | 浙江嘉隆机械设备有限公司 | Emergency shutoff bottom valve of oil tank truck |
| CN203797088U (en) * | 2014-04-22 | 2014-08-27 | 四川成都空分配套阀门有限公司 | Emergency cut-off valve |
| CN206973007U (en) * | 2017-06-14 | 2018-02-06 | 四川弗瑞希燃气设备有限公司 | A kind of cryogenic vacuum chuck stop valve |
| CN209115755U (en) * | 2018-11-20 | 2019-07-16 | 江苏瑞朗博机械设备有限公司 | A fire emergency cut-off device |
| CN209654634U (en) * | 2019-03-29 | 2019-11-19 | 商丘新奥燃气工程有限公司 | A kind of gas valve with protective device |
| CN111365498A (en) * | 2020-03-25 | 2020-07-03 | 焦彪彪 | Chemical industry reation kettle constant pressure valve |
-
2020
- 2020-11-20 CN CN202011312232.2A patent/CN112431954A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4075798A (en) * | 1976-05-10 | 1978-02-28 | Michiji Tazaki | Water cooling jacket for fire |
| CN202927186U (en) * | 2012-11-20 | 2013-05-08 | 浙江嘉隆机械设备有限公司 | Emergency shutoff bottom valve of oil tank truck |
| CN203797088U (en) * | 2014-04-22 | 2014-08-27 | 四川成都空分配套阀门有限公司 | Emergency cut-off valve |
| CN206973007U (en) * | 2017-06-14 | 2018-02-06 | 四川弗瑞希燃气设备有限公司 | A kind of cryogenic vacuum chuck stop valve |
| CN209115755U (en) * | 2018-11-20 | 2019-07-16 | 江苏瑞朗博机械设备有限公司 | A fire emergency cut-off device |
| CN209654634U (en) * | 2019-03-29 | 2019-11-19 | 商丘新奥燃气工程有限公司 | A kind of gas valve with protective device |
| CN111365498A (en) * | 2020-03-25 | 2020-07-03 | 焦彪彪 | Chemical industry reation kettle constant pressure valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586774A (en) * | 2021-06-28 | 2021-11-02 | 上海外高桥造船有限公司 | Pressure balance valve for low-temperature storage |
| RU2830454C1 (en) * | 2024-04-26 | 2024-11-19 | Яна Дмитриевна Смирнова | Spring valve |
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Application publication date: 20210302 |