CN103836242A - Fuel gas cylinder valve - Google Patents
Fuel gas cylinder valve Download PDFInfo
- Publication number
- CN103836242A CN103836242A CN201410106178.4A CN201410106178A CN103836242A CN 103836242 A CN103836242 A CN 103836242A CN 201410106178 A CN201410106178 A CN 201410106178A CN 103836242 A CN103836242 A CN 103836242A
- Authority
- CN
- China
- Prior art keywords
- pressure relief
- valve
- valve body
- relief opening
- pressure
- 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
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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
- F16K17/168—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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention relates to a fuel gas cylinder valve. The fuel gas cylinder valve comprises a valve body, wherein the valve body is provided with a gas connection passage and a gas port communicated with the outer side of the valve body, the gas connection passage is communicated with or closes off the gas port trough a switch valve, an automatic pressure relief device is installed on the valve body, the automatic pressure relief device comprises a pressure relief passage arranged on the valve body and a pressure relief port which is arranged on the valve body and can be communicated with the outer side of the valve body, the inner surface of the pressure relief port is arranged in a step mode, the inner diameter of the inside of the pressure relief port is smaller than the inner diameter of the outside of the pressure relief port, the inside of the pressure relief port is sealed and provided with a movable block in a sliding mode, a spring seat is arranged outside the pressure relief port, a pressure relief spring is connected between the movable block and the spring seat, the upper end of the pressure relief passage is communicated with or closes off the pressure relief port through the movable block, the lower end of the pressure relief passage is connected with a pressure relief pipe extending out of the inner side of the valve body, and a horn-shaped opening is arranged at the end of the pressure relief pipe. The fuel gas cylinder valve can achieve automatic and rapid pressure relief through the automatic pressure relief device, guarantees stability of the air pressure inside a fuel gas cylinder, and guarantees safety.
Description
Technical field
The present invention relates to a kind of gas cylinder valve.
Background technique
Gas cylinder valve is installed in gas cylinder, by opening valve, the combustion gas in gas cylinder is discharged and used, or combustion gas is injected in gas cylinder.Occur when abnormal, may cause gas cylinder internal air pressure too high when injecting combustion gas or gas cylinder, if now air pressure can not get timely release, will produce the danger of blast.In prior art, be much to adopt manual pressure release, if air pressure erroneous judgement like this, still pressure release in time, also may cause the delay of time in case of emergency time, and pressure release speed of the prior art is fast not.
Summary of the invention
In order to overcome the above-mentioned deficiency of prior art, the invention provides a kind of gas cylinder valve of quick pressure releasing automatically.
The technological scheme that the present invention solves its technical problem is:
A kind of gas cylinder valve, comprise valve body, the gas port of the company's of setting gas passage and the external side of connecting valve on valve body, connecting gas passage is communicated with by switch valve or turn-offs gas port, it is characterized in that: on described valve body, automatic decompression device is installed, automatic decompression device comprises the pressure release passage being arranged on valve body, the pressure relief opening being arranged on valve body and can the external side of connecting valve, the internal surface ladder of pressure relief opening arranges, the internal diameter of pressure relief opening inside is less than the internal diameter of pressure relief opening outside, pressure relief opening inner sealing and be slidably provided with movable block, pressure relief opening outer installment spring seat, between movable block and spring seat, be connected pressure release spring, the upper end of pressure release passage is communicated with by movable block or turn-offs pressure relief opening, the lower end of pressure release passage connects the relief tube that stretches out valve body inner side, relief tube end is set to horn mouth.
As preferably, the lower end that connects gas passage connects the tracheae that stretches out valve body inner side, and tracheae end is set to curved shape.
As preferably, the bend angle of tracheae end is greater than 90 °, and bending part arc arranges.
As preferably, on valve body, be also provided with manual pressure relief device, described manual pressure relief device comprises the second pressure relief opening being arranged on valve body and can the external side of connecting valve, and in the second pressure relief opening, sealing plug is provided with sealing block, and the upper end of pressure release passage is communicated with the second described pressure relief opening.
As preferably, switch valve comprises and is communicated with the switch valve opening of gas passage and gas port and is arranged on the spool in switch valve opening, the front end of spool is blocked in the connecting port place that switch valve opening is communicated with gas passage, the afterbody of spool connects valve rod, on described valve rod, be 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 comprises that envelope is located at movable cushion block and the bag that pressure release passage connects the connection mouth place of pressure relief opening and establishes 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 comprises that envelope is located at the sealing active door that pressure release passage connects the seal block at connection mouth place of the second pressure relief opening and bag and establish seal block.
As preferably, gas port end cover is provided with dust cover, and one end of dust cover is fixed on valve body, and the end of pressure relief opening and the second pressure relief opening is covered with respectively the first pressure release dust cover and the second pressure release dust cover.
As preferably, the spool conical surface is sealed in the connecting port place that switch valve opening is communicated with gas passage firmly.
When work, open switch valve, the combustion gas in gas cylinder is entered and is connected gas passage again from gas port out by tracheae, or combustion gas is injected in gas cylinder through connecting gas passage and tracheae from gas port.On valve body, be also provided with automatic decompression device, the elasticity coefficient of the pressure release spring in automatic decompression device is rationally set, in the time that gas cylinder internal air pressure is too high, combustion gas enters pressure release passage by relief tube, highpressure promotes movable block and slides laterally, and movable block is no longer blocked in pressure relief opening inside, between movable block and pressure relief opening outside, has space, combustion gas is discharged by pressure relief opening, and movable block compresses pressure release spring in sliding process laterally.After releasing, pressure release spring is replied promotion movable block and is sealed in pressure relief opening inside.Relief tube end in the present invention in automatic decompression device adopts horn mouth, and bell-mouthed setting, can make pressure release rapider, more timely.In addition, combustion gas in use, slow phenomenon when anxious when combustion gas there will be, the end of tracheae is set to curved shape, when combustion gas enters tracheae, air-flow is more steady, combustion flame is also more even.The present invention is also provided with manual pressure relief device except automatic decompression device is set, when whenever necessary, such as automatic decompression device is fast not or other self need in pressure release situation, as long as open the sealing block of the second pressure relief opening, just can reach the object of manual pressure release.
The bend angle of tracheae of the present invention end is greater than 90 °, and the setting of bending part arc, comparatively steady when combustion gas enters tracheae like this.The spool of switch valve of the present invention seals firmly with the conical surface that is sealed into that connects gas passage, does not use PTFE, rubber etc., has improved the working life of product.Be provided with respectively dust cover, the first pressure release dust cover and the second pressure release dust cover at gas port, pressure relief opening and the second pressure relief opening place, in Product transport, in using process, can play dustproof use.And one end and the valve body of dust cover are fixed, and after taking off, can not lose.
Beneficial effect of the present invention is: the present invention, by the setting of automatic decompression device, can realize automatic quick pressure releasing, has guaranteed the stable of gas cylinder internal air pressure, has ensured safety.
The present invention arranges by tracheae bend at end, more steady while making gas outlet.
The present invention, by the setting of manual pressure relief device, makes under other need situation, manually pressure release, or in case of emergency, auto-manual bidirectional opening, accelerates pressure release speed.
Accompanying drawing explanation
Fig. 1 is sectional structure schematic diagram of the present invention.
Fig. 2 is broken section structural representation of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As shown in Figure 1, a kind of gas cylinder valve, comprises valve body 6, the gas port 5 of the company's of setting gas passage 14 and the external side of connecting valve on valve body 6, connect gas passage 14 and be communicated with by switch valve or turn-off gas port 5, gas port end cover is provided with dust cover 22, and one end of dust cover 22 is fixed on valve body.The lower end that connects gas passage 14 connects the tracheae 15 that stretches out valve body inner side, and tracheae end is set to curved shape.The bend angle of tracheae end is greater than 90 °, and bending part arc arranges.On valve body 6, automatic decompression device is installed, automatic decompression device comprises the pressure release passage 9 being arranged on valve body, the pressure relief opening 18 being arranged on valve body and can the external side of connecting valve, the internal surface ladder of pressure relief opening 18 arranges, the internal diameter of pressure relief opening inside is less than the internal diameter of pressure relief opening outside, pressure relief opening inner sealing and be slidably provided with movable block 21, movable block 21 comprises that envelope is located at movable cushion block 4 and the bag that pressure release passage 9 connects the connection mouth place of pressure relief opening 18 and establishes the movable valve 3 of movable cushion block, the outer end of movable valve 3 arranges groove, pressure relief opening outer installment has spring seat 1, between movable block and spring seat, be connected pressure release spring 2, and pressure release spring 2 is arranged in groove.The upper end of pressure release passage 9 is communicated with by movable block 21 or turn-offs pressure relief opening 18, and the lower end of pressure release passage connects the relief tube 10 that stretches out valve body inner side, and relief tube end is set to horn mouth.The end cover of pressure relief opening is provided with the first pressure release dust cover 20.
As shown in Figure 2, be also provided with manual pressure relief device on valve body 6, manually pressure relief device comprises the second pressure relief opening 16 being arranged on valve body and can the external side of connecting valve, and the upper end of pressure release passage 9 is communicated with the second described pressure relief opening 16.The interior sealing plug of the second pressure relief opening 16 is provided with sealing block 24, and sealing block 24 comprises that envelope is located at seal block 19 and the bag that pressure release passage connects the connection mouth place of the second pressure relief opening and establishes the sealing active door 17 of seal block.The second pressure relief opening outer end cap is provided with the second pressure release dust cover 2.
Switch valve comprises and is communicated with the switch valve opening 7 of gas passage 14 and gas port and is arranged on the spool 11 in switch valve opening 7, the front end of spool 11 is blocked in the connecting port place that switch valve opening is communicated with gas passage, and spool 11 conical surfaces are sealed in the connecting port place that switch valve opening is communicated with gas passage firmly, the afterbody of spool connects valve rod 8, on valve rod, be 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.
When work, open switch valve, by tracheae 15 company's of entering gas passages 14 again from gas port 5 out, or combustion gas is injected in gas cylinder through connecting gas passages 14 and tracheae 15 from gas port 5 combustion gas in gas cylinder.On valve body, be also provided with automatic decompression device, the elasticity coefficient of the pressure release spring 2 in automatic decompression device is rationally set, in the time that gas cylinder internal air pressure is too high, combustion gas enters pressure release passage 9 by relief tube 10, highpressure promotes movable block 21 and slides laterally, movable block is no longer blocked in pressure relief opening inside, and movable block and between pressure relief opening outside does not have space, and combustion gas is discharged by pressure relief opening 18.After releasing, pressure release spring 2 still promotes movable block 21 and is sealed in pressure relief opening inside.Relief tube end in the present invention in automatic decompression device adopts horn mouth, and bell-mouthed setting, makes pressure release rapider, more timely.In addition, combustion gas in use, slow phenomenon when anxious when combustion gas there will be, the end of tracheae 15 is set to curved shape, when combustion gas enters tracheae, more even.The present invention is also provided with manual pressure release except automatic decompression device is set, and when whenever necessary, as long as open the sealing block 24 of the second pressure relief opening, just can reach the object of manual pressure release.
The bend angle of tracheae of the present invention end is greater than 90 °, and the setting of bending part arc, comparatively steady when combustion gas enters tracheae like this.The spool 11 of switch valve of the present invention seals firmly with the conical surface that is sealed into that connects gas passage, does not use PTFE, rubber etc., has improved the working life of product.Be provided with respectively dust cover, the first pressure release dust cover and the second pressure release dust cover at gas port, pressure relief opening and the second pressure relief opening place, in Product transport, in using process, can play dustproof use.And one end and the valve body of dust cover are fixed, and after taking off, can not lose.
The present invention, by the setting of automatic decompression device, can realize automatic quick pressure releasing, has guaranteed the stable of gas cylinder internal air pressure, has ensured safety.
The present invention arranges by tracheae bend at end, more steady while making gas outlet.
The present invention, by the setting of manual pressure relief device, makes under other need situation, manually pressure release, or in case of emergency, auto-manual bidirectional opening, accelerates pressure release speed.
Claims (9)
1. a gas cylinder valve, comprise valve body, the gas port of the company's of setting gas passage and the external side of connecting valve on valve body, connecting gas passage is communicated with by switch valve or turn-offs gas port, it is characterized in that: on described valve body, automatic decompression device is installed, automatic decompression device comprises the pressure release passage being arranged on valve body, the pressure relief opening being arranged on valve body and can the external side of connecting valve, the internal surface ladder of pressure relief opening arranges, the internal diameter of pressure relief opening inside is less than the internal diameter of pressure relief opening outside, pressure relief opening inner sealing and be slidably provided with movable block, pressure relief opening outer installment spring seat, between movable block and spring seat, be connected pressure release spring, the upper end of pressure release passage is communicated with by movable block or turn-offs pressure relief opening, the lower end of pressure release passage connects the relief tube that stretches out valve body inner side, relief tube end is set to horn mouth.
2. a kind of gas cylinder valve according to claim 1, is characterized in that: the lower end of described company's gas passage connects the tracheae that stretches out valve body inner side, and tracheae end is set to curved shape.
3. a kind of gas cylinder valve according to claim 2, is characterized in that: the bend angle of described tracheae end is greater than 90 °, and bending part arc arranges.
4. a kind of gas cylinder valve according to claim 3, it is characterized in that: on described valve body, be also provided with manual pressure relief device, described manual pressure relief device comprises the second pressure relief opening being arranged on valve body and can the external side of connecting valve, in the second pressure relief opening, sealing plug is provided with sealing block, and the upper end of pressure release passage is communicated with the second described pressure relief opening.
5. a kind of gas cylinder valve according to claim 4, it is characterized in that: described switch valve comprises and is communicated with the switch valve opening of gas passage and gas port and is arranged on the spool in switch valve opening, the front end of spool is blocked in the connecting port place that switch valve opening is communicated with gas passage, the afterbody of spool connects valve rod, on described valve rod, be 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.
6. a kind of gas cylinder valve according to claim 5, it is characterized in that: described movable block comprises that envelope is located at movable cushion block and the bag at connection mouth place that pressure release passage connects pressure relief opening and establishes 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.
7. a kind of gas cylinder valve according to claim 6, is characterized in that: described sealing block comprises that envelope is located at the sealing active door that pressure release passage connects the seal block at connection mouth place of the second pressure relief opening and bag and establish seal block.
8. a kind of gas cylinder valve according to claim 7, it is characterized in that: described gas port end cover is provided with dust cover, one end of dust cover is fixed on valve body, and the end of pressure relief opening and the second pressure relief opening is covered with respectively the first pressure release dust cover and the second pressure release dust cover.
9. a kind of gas cylinder valve according to claim 8, is characterized in that: the described spool conical surface is firmly sealed in switch valve opening and is communicated with the connecting port place that connects gas passage.
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 true CN103836242A (en) | 2014-06-04 |
| CN103836242B CN103836242B (en) | 2016-06-29 |
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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 |
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| CN (1) | CN103836242B (en) |
Cited By (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 |
| CN111828836A (en) * | 2020-07-22 | 2020-10-27 | 宁波麦实科技有限公司 | Anti-disassembly liquefied petroleum gas cylinder valve |
| CN117432848A (en) * | 2023-12-19 | 2024-01-23 | 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 |
Cited By (5)
| 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 |
| CN111828836A (en) * | 2020-07-22 | 2020-10-27 | 宁波麦实科技有限公司 | Anti-disassembly liquefied petroleum gas cylinder valve |
| CN117432848A (en) * | 2023-12-19 | 2024-01-23 | 靖江市新世纪液压件制造有限公司 | Safety valve with automatic pressure relief structure |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103836242B (en) | 2016-06-29 |
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