CN103836242B - A kind of gas cylinder valve - Google Patents
A kind of gas cylinder valve Download PDFInfo
- Publication number
- CN103836242B CN103836242B CN201410106178.4A CN201410106178A CN103836242B CN 103836242 B CN103836242 B CN 103836242B CN 201410106178 A CN201410106178 A CN 201410106178A CN 103836242 B CN103836242 B CN 103836242B
- Authority
- CN
- China
- Prior art keywords
- pressure relief
- valve
- relief opening
- pressure
- valve body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/168—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side combined with manually-controlled valves, e.g. a valve combined with a safety valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/06—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for adjusting the opening pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/164—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side and remaining closed after return of the normal pressure
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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
Abstract
The present invention relates to a kind of gas cylinder valve, including valve body, the QI KOU of the company's of setting gas passage and the external side of communicating valve on valve body, even gas passage is connected by switch valve or turns off QI KOU, valve body is provided with automatic decompression device, automatic decompression device includes the pressure release passage being arranged on valve body, it is arranged on valve body and can the pressure relief opening of the external side of communicating valve, the inner surface ladder of pressure relief opening is arranged, internal diameter within pressure relief opening is less than the internal diameter outside pressure relief opening, pressure relief opening inner sealing and be slidably provided with movable block, spring base is set outside pressure relief opening, pressure release spring it is connected between movable block with spring base, the upper end of pressure release passage is connected by movable block or turns off pressure relief opening, the lower end of pressure release passage connects the relief tube stretched out inside valve body, relief tube end is set to horn mouth.The present invention setting by automatic decompression device, it is possible to achieve quick pressure releasing automatically, it is ensured that stablizing of fuel gas bottle internal gas pressure, has ensured safety.
Description
Technical field
The present invention relates to a kind of gas cylinder valve.
Background technology
Fuel gas bottle is provided with gas cylinder valve, by opening valve, the combustion gas in fuel gas bottle is discharged and uses, or combustion gas is injected in fuel gas bottle.When injecting combustion gas or fuel gas bottle occurs abnormal, it is possible to can cause that fuel gas bottle internal gas pressure is too high, if now air pressure can not get timely release, the danger of blast will be produced.In prior art, much be adopt manual pressure release, if so air pressure judge by accident; still can not pressure release in time, be likely to the delay that can cause the time time in case of emergency, and pressure release speed of the prior art be fast not.
Summary of the invention
In order to overcome the above-mentioned deficiency of prior art, the present invention provide a kind of can the gas cylinder valve of quick pressure releasing automatically.
This invention address that the technical scheme of its technical problem is:
A kind of gas cylinder valve, including valve body, the QI KOU of the company's of setting gas passage and the external side of communicating valve on valve body, even gas passage is connected by switch valve or turns off QI KOU, it is characterized in that: described valve body is provided with automatic decompression device, automatic decompression device includes the pressure release passage being arranged on valve body, it is arranged on valve body and can the pressure relief opening of the external side of communicating valve, the inner surface ladder of pressure relief opening is arranged, internal diameter within pressure relief opening is less than the internal diameter outside pressure relief opening, pressure relief opening inner sealing and be slidably provided with movable block, spring base is set outside pressure relief opening, pressure release spring it is connected between movable block with spring base, the upper end of pressure release passage is connected by movable block or turns off pressure relief opening, the lower end of pressure release passage connects the relief tube stretched out inside valve body, relief tube end is set to horn mouth.
As preferably, even the lower end of gas passage connects the trachea stretched out inside valve body, and trachea end is set to bending.
As preferably, the angle of bend of trachea end is more than 90 °, and knee arc is arranged.
As preferably, valve body is additionally provided with manual operation pressure relief device, described manual operation pressure relief device include being arranged on valve body and can the second pressure relief opening of the external side of communicating valve, in the second pressure relief opening, sealing-plug is provided with sealing block, the second pressure relief opening that the upper end connection of pressure release passage is described.
As preferably, switch valve includes the switch valve opening of connection even gas passage and QI KOU and is arranged on the spool in switch valve opening, the front end of spool is blocked in the connected entrance place of switch valve opening connection even gas passage, the afterbody of spool connects valve rod, described valve rod is fixed with pressure cap, the tail end of valve rod is fixedly connected with knob, and described valve rod is threaded on described valve body together with pressure cap.
As preferably, movable block includes sealing and is located at pressure release passage and connects the movable cushion block at connector place of pressure relief opening and bag sets the movable valve of movable cushion block, and the outer end of described movable valve arranges groove, and described pressure release spring is arranged in described groove.
As preferably, sealing block includes sealing and is located at pressure release passage and connects the seal block at connector place of the second pressure relief opening and bag sets the sealing active door of seal block.
As preferably, QI KOU end cover is provided with dust cap, and one end of dust cap is fixed on valve body, and the end of pressure relief opening and the second pressure relief opening is covered with the first pressure release dust cap and the second pressure release dust cap respectively.
As preferably, the spool conical surface is sealed in the connected entrance place of switch valve opening connection even gas passage firmly.
During work, open switch valve, then the combustion gas in fuel gas bottle is entered by trachea and connects gas passage again from QI KOU out, or, combustion gas is injected in fuel gas bottle from QI KOU through even gas passage and trachea.Valve body is additionally provided with automatic decompression device, the coefficient of elasticity of pressure release spring in automatic decompression device is rationally set, when fuel gas bottle internal gas pressure is too high, then combustion gas enters pressure release passage by relief tube, hyperbar promotes movable block to slide laterally, and movable block is no longer blocked in inside pressure relief opening, has space between movable block and pressure relief opening outside, then combustion gas is released by pressure relief opening, compresses pressure release spring in movable block sliding process laterally.After releasing, pressure release spring-return promotes movable block to be sealed in inside pressure relief opening.In the present invention, the relief tube end in automatic decompression device adopts horn mouth, bell-mouthed setting, pressure release can be made rapider, more in time.It addition, combustion gas is in use, phenomenon slow during urgency when combustion gas there will be, the end of trachea is set to bending, then when combustion gas enters trachea, air-flow is more steady, then combustion flame is also more uniform.The present invention is additionally provided with manual operation pressure relief device except arranging automatic decompression device, when required, such as automatic decompression device fast not or other self need in pressure release situation, as long as opening the sealing block of the second pressure relief opening, it is possible to reach the purpose of manual pressure release.
The angle of bend of the trachea end of the present invention is more than 90 °, and knee arc is arranged, and such combustion gas enters during trachea comparatively steady.The spool of switch valve of the present invention and the conical surface that is sealed into connecting gas passage seal firmly, it does not have use PTFE, rubber etc., improve the service life of product.It is provided with dust cap, the first pressure release dust cap and the second pressure release dust cap respectively at QI KOU, pressure relief opening and the second pressure relief opening place, dust-proof use can be played in Product transport, in use procedure.And one end of dust cap and valve body fix, will not lose after taking off.
The beneficial effects of the present invention is: the present invention setting by automatic decompression device, it is possible to achieve quick pressure releasing automatically, it is ensured that stablizing of fuel gas bottle internal gas pressure, ensured safety.
The present invention is arranged by the bending of trachea end so that more steady during gas outlet.
The setting of the present invention manually pressure relief device so that under other need situation, it is possible to manual pressure release, or in case of emergency, auto-manual bidirectional opening, accelerate pressure release speed.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of the present invention.
Fig. 2 is the broken section structural representation of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As it is shown in figure 1, a kind of gas cylinder valve, including valve body 6, the QI KOU 5 of the company's of setting gas passage 14 and the external side of communicating valve on valve body 6, even gas passage 14 connects or turns off QI KOU 5 by switch valve, and QI KOU end cover is provided with dust cap 22, and one end of dust cap 22 is fixed on valve body.Even the lower end of gas passage 14 connects the trachea 15 stretched out inside valve body, and trachea end is set to bending.The angle of bend of trachea end is more than 90 °, and knee arc is arranged.Valve body 6 is provided with automatic decompression device, automatic decompression device includes the pressure release passage 9 being arranged on valve body, it is arranged on valve body and can the pressure relief opening 18 of the external side of communicating valve, the inner surface ladder of pressure relief opening 18 is arranged, internal diameter within pressure relief opening is less than the internal diameter outside pressure relief opening, pressure relief opening inner sealing and be slidably provided with movable block 21, movable block 21 includes sealing and is located at pressure release passage 9 and connects the movable cushion block 4 at connector place of pressure relief opening 18 and bag sets the movable valve 3 of movable cushion block, the outer end of movable valve 3 arranges groove, spring base 1 it is provided with outside pressure relief opening, pressure release spring 2 it is connected between movable block with spring base, and pressure release spring 2 is arranged in groove.The upper end of pressure release passage 9 connects or turns off pressure relief opening 18 by movable block 21, and the lower end of pressure release passage connects the relief tube 10 stretched out inside valve body, and relief tube end is set to horn mouth.The end cover of pressure relief opening is provided with the first pressure release dust cap 20.
As in figure 2 it is shown, valve body 6 is additionally provided with manual operation pressure relief device, manual operation pressure relief device include being arranged on valve body and can the second pressure relief opening 16 of the external side of communicating valve, the second pressure relief opening 16 that the upper end connection of pressure release passage 9 is described.In second pressure relief opening 16, sealing-plug is provided with sealing block 24, and sealing block 24 includes sealing and is located at pressure release passage and connects the seal block 19 at connector place of the second pressure relief opening and bag sets the sealing active door 17 of seal block.Second pressure relief opening outer end cap is provided with the second pressure release dust cap 2.
Switch valve includes the switch valve opening 7 of connection even gas passage 14 and QI KOU and is arranged on the spool 11 in switch valve opening 7, the front end of spool 11 is blocked in the connected entrance place of switch valve opening connection even gas passage, and spool 11 conical surface is sealed in the connected entrance place of switch valve opening connection even gas passage firmly, the afterbody of spool connects valve rod 8, valve rod is fixed with pressure cap 12, the tail end of valve rod is fixedly connected with knob 13, and valve rod 8 is threaded on valve body together with pressure cap.
During work, open switch valve, then the combustion gas in fuel gas bottle is entered by trachea 15 and connects gas passage 14 again from QI KOU 5 out, or, combustion gas is injected in fuel gas bottle from QI KOU 5 through even gas passage 14 and trachea 15.Valve body is additionally provided with automatic decompression device, the coefficient of elasticity of pressure release spring 2 in automatic decompression device is rationally set, when fuel gas bottle internal gas pressure is too high, then combustion gas enters pressure release passage 9 by relief tube 10, hyperbar promotes movable block 21 to slide laterally, movable block is no longer blocked in inside pressure relief opening, and movable block not and has space between pressure relief opening outside, then combustion gas is released by pressure relief opening 18.After releasing, pressure release spring 2 still promotes movable block 21 to be sealed in inside pressure relief opening.In the present invention, the relief tube end in automatic decompression device adopts horn mouth, bell-mouthed setting so that pressure release is rapider, more in time.It addition, combustion gas is in use, phenomenon slow during urgency when combustion gas there will be, the end of trachea 15 is set to bending, then, when combustion gas enters trachea, is more uniformly distributed.The present invention is additionally provided with manual pressure release except arranging automatic decompression device, when required, as long as opening the sealing block 24 of the second pressure relief opening, it is possible to reach the purpose of manual pressure release.
The angle of bend of the trachea end of the present invention is more than 90 °, and knee arc is arranged, and such combustion gas enters during trachea comparatively steady.The spool 11 of switch valve of the present invention and the conical surface that is sealed into connecting gas passage seal firmly, it does not have use PTFE, rubber etc., improve the service life of product.It is provided with dust cap, the first pressure release dust cap and the second pressure release dust cap respectively at QI KOU, pressure relief opening and the second pressure relief opening place, dust-proof use can be played in Product transport, in use procedure.And one end of dust cap and valve body fix, will not lose after taking off.
The present invention setting by automatic decompression device, it is possible to achieve quick pressure releasing automatically, it is ensured that stablizing of fuel gas bottle internal gas pressure, has ensured safety.
The present invention is arranged by the bending of trachea end so that more steady during gas outlet.
The setting of the present invention manually pressure relief device so that under other need situation, it is possible to manual pressure release, or in case of emergency, auto-manual bidirectional opening, accelerate pressure release speed.
Claims (6)
1. a gas cylinder valve, including valve body, the QI KOU of the company's of setting gas passage and the external side of communicating valve on valve body, even gas passage is connected by switch valve or turns off QI KOU, it is characterized in that: described valve body is provided with automatic decompression device, automatic decompression device includes the pressure release passage being arranged on valve body, it is arranged on valve body and can the pressure relief opening of the external side of communicating valve, the inner surface ladder of pressure relief opening is arranged, internal diameter within pressure relief opening is less than the internal diameter outside pressure relief opening, pressure relief opening inner sealing and be slidably provided with movable block, spring base is set outside pressure relief opening, pressure release spring it is connected between movable block with spring base, the upper end of pressure release passage is connected by movable block or turns off pressure relief opening, the lower end of pressure release passage connects the relief tube stretched out inside valve body, relief tube end is set to horn mouth, the lower end of described company's gas passage connects the trachea stretched out inside valve body, trachea end is set to bending, the angle of bend of described trachea end is more than 90 °, and knee arc is arranged, described valve body is additionally provided with manual operation pressure relief device, described manual operation pressure relief device includes being arranged on valve body and can the second pressure relief opening of the external side of communicating valve, in second pressure relief opening, sealing-plug is provided with sealing block, second pressure relief opening described in the connection of upper end of pressure release passage.
2. a kind of gas cylinder valve according to claim 1, it is characterized in that: described switch valve includes the switch valve opening of connection even gas passage and QI KOU and is arranged on the spool in switch valve opening, the front end of spool is blocked in the connected entrance place of switch valve opening connection even gas passage, the afterbody of spool connects valve rod, described valve rod is fixed with pressure cap, the tail end of valve rod is fixedly connected with knob, and described valve rod is threaded on described valve body together with pressure cap.
3. a kind of gas cylinder valve according to claim 2, it is characterized in that: described movable block includes sealing and is located at pressure release passage and connects the movable cushion block at connector place of pressure relief opening and bag sets the movable valve of movable cushion block, the outer end of described movable valve arranges groove, and described pressure release spring is arranged in described groove.
4. a kind of gas cylinder valve according to claim 3, it is characterised in that: described sealing block includes sealing and is located at pressure release passage and connects the seal block at connector place of the second pressure relief opening and bag sets the sealing active door of seal block.
5. a kind of gas cylinder valve according to claim 4, it is characterized in that: described QI KOU end cover is provided with dust cap, one end of dust cap is fixed on valve body, and the end of pressure relief opening and the second pressure relief opening is covered with the first pressure release dust cap and the second pressure release dust cap respectively.
6. a kind of gas cylinder valve according to claim 5, it is characterised in that: the described spool conical surface is sealed in the connected entrance place of switch valve opening connection even gas passage firmly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410106178.4A CN103836242B (en) | 2014-03-21 | 2014-03-21 | A kind of gas cylinder valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410106178.4A CN103836242B (en) | 2014-03-21 | 2014-03-21 | A kind of gas cylinder valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103836242A CN103836242A (en) | 2014-06-04 |
| CN103836242B true CN103836242B (en) | 2016-06-29 |
Family
ID=50800017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410106178.4A Active CN103836242B (en) | 2014-03-21 | 2014-03-21 | A kind of gas cylinder valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103836242B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120528A (en) * | 2017-04-22 | 2017-09-01 | 张家港富瑞阀门有限公司 | A kind of integrated cylinder valve of novel high-pressure gas storage |
| CN108612887A (en) * | 2018-06-19 | 2018-10-02 | 江苏安普阀门机械有限公司 | A kind of safety relief circle |
| CN111828836B (en) * | 2020-07-22 | 2022-06-24 | 宁波麦实科技有限公司 | Anti-disassembly liquefied petroleum gas cylinder valve |
| CN117432848B (en) * | 2023-12-19 | 2024-03-08 | 靖江市新世纪液压件制造有限公司 | Safety valve with automatic pressure relief structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4210168A (en) * | 1977-10-17 | 1980-07-01 | Kabushiki Kaisha Neriki | Pressure-responsive valve unit for a fluid container |
| CN2490398Y (en) * | 2001-06-20 | 2002-05-08 | 李锋海 | Safety angle valve for preventing overfill of liquified gas cylinder used by vehicle |
| EP1380779A1 (en) * | 2002-07-11 | 2004-01-14 | Luxembourg Patent Company S.A. | Pressure relief valve |
| CN200965095Y (en) * | 2006-11-08 | 2007-10-24 | 象山制阀有限公司 | Fuel gas automobile gas bottle valve with improved safety and protection device |
| CN203395312U (en) * | 2013-07-25 | 2014-01-15 | 宁波金佳佳阀门有限公司 | Double-sealed self-closing cylinder valve |
| CN203757108U (en) * | 2014-03-21 | 2014-08-06 | 宁波金佳佳阀门有限公司 | Fuel gas cylinder valve |
-
2014
- 2014-03-21 CN CN201410106178.4A patent/CN103836242B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4210168A (en) * | 1977-10-17 | 1980-07-01 | Kabushiki Kaisha Neriki | Pressure-responsive valve unit for a fluid container |
| CN2490398Y (en) * | 2001-06-20 | 2002-05-08 | 李锋海 | Safety angle valve for preventing overfill of liquified gas cylinder used by vehicle |
| EP1380779A1 (en) * | 2002-07-11 | 2004-01-14 | Luxembourg Patent Company S.A. | Pressure relief valve |
| CN200965095Y (en) * | 2006-11-08 | 2007-10-24 | 象山制阀有限公司 | Fuel gas automobile gas bottle valve with improved safety and protection device |
| CN203395312U (en) * | 2013-07-25 | 2014-01-15 | 宁波金佳佳阀门有限公司 | Double-sealed self-closing cylinder valve |
| CN203757108U (en) * | 2014-03-21 | 2014-08-06 | 宁波金佳佳阀门有限公司 | Fuel gas cylinder valve |
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| Publication number | Publication date |
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| CN103836242A (en) | 2014-06-04 |
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