CN2048924U - Fire insulation valve for household piped gas - Google Patents
Fire insulation valve for household piped gas Download PDFInfo
- Publication number
- CN2048924U CN2048924U CN 89201055 CN89201055U CN2048924U CN 2048924 U CN2048924 U CN 2048924U CN 89201055 CN89201055 CN 89201055 CN 89201055 U CN89201055 U CN 89201055U CN 2048924 U CN2048924 U CN 2048924U
- Authority
- CN
- China
- Prior art keywords
- valve
- gas
- pipeline
- coal gas
- spool
- 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.)
- Withdrawn
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- Safety Valves (AREA)
Abstract
The utility model relates to a fire retardant valve for coal gas (containing petroleum gas) in a low-pressure pipeline, which is composed of a valve seat, a valve core and a valve body, wherein, the valve core is provided with a gas inlet sealing cover, a gas inlet, a sealing rubber ring, a spring, a porous net sleeve, a multi-layer copper net and a fusible alloy pin. When the coal gas in a pipeline generates backfire, or connecting pieces between the pipeline and a burner are burnt by an accidental fire, the gas source of the pipeline can be cut off in time to prevent the coal gas from discharging continuously and ensure users' safety. The utility model has the characteristics of simple structure, small size, light weight and low cost. The fire retardant valve is suitable for kitchens in a family and a restaurant.
Description
The utility model relates to a kind of gas pipe line valve, particularly a kind of home pipeline coal gas fire insulation valve.
At present, the inflammable gas on the industrial production and the line transportation of inflammable liquid and basin general all are equipped with flame trap at an end of pipeline, prevent to cause " tempering " when fire accident from taking place, and cause blast and the more generation of conflagration.Since piped gas (containing petroleum gas) enters family, Security on it uses is paid close attention to by people always, the gas automatic shutoff valve of China patent CN862015624 is a kind ofly can cut out automatically when gas pipe line interrupts air feed, can prevent the safety installations that coal gas overflows again when recovering air feed, but, it can not solve town gas pipeline and burner be connected may occur in using because the tempering of coal gas generation when the Air mixing ratio changes or gas pressure changes, and during being connected (as sebific duct) and being blown by outside burning things which may cause a fire disaster between burner and the pipeline, coal gas is constantly discharged the fire accident that is caused under situation unmanned on the scene.
The purpose of this utility model provides a kind of when gas pipe line produces link between tempering or gas pipe line and the burner and burnt by accident, can in time cut off the home pipeline coal gas fire insulation valve of source of the gas.
Task of the present utility model realizes in such a way: fire insulation valve be installed in that gas pipe is led and the link of burner between, under normal circumstances, coal gas (containing petroleum gas) enters valve seat 1 from pipeline, and a plurality of inlet holes 2 that pass through spool 6 front end air inlet cappings flow into valve pockets, then through porous square 7, multilayer copper mesh 8, porous net 9, valve body 5 transfers in burner link and the burner and burns, when combustion gas is risen sharply the valve body temperature at valve body place generation tempering phenomenon or because of valve body by extraneous flame combustion, the flame flow direction is opposite with the source of the gas direction, flame is disperseed by the multilayer copper mesh and lowers the temperature and extinguish, at this moment, the low melting alloy pin 10 that is applied in the spool the other end is melted because of local temperature is too high, thereby 4 winks of spring are promptly moved, spool is moved to airintake direction, and pass through rubber seal 3, cut off source of the gas valve closing, stop coal gas or petroleum gas to continue to transfer to outside the tracheae, guarantee user security.
Below in conjunction with accompanying drawing enforcement of the present utility model is described in further detail:
Fig. 1 is a sectional view of the present utility model.
As shown in Figure 1, home pipeline coal gas fire insulation valve is by valve seat 1, valve body 5 and spool 6 are formed, valve seat and valve body link by screw thread, one end of valve seat has outside thread and gas pipe line to link, the other end of valve body has internal thread and burner link to link, spool 6 is assemblied between valve seat and the valve body, the air inlet capping of spool 6 radially has a plurality of inlet holes 2, capping is with a rubber seal 3, spool is with a spring 4 in the part of valve pocket, and spool has a radially garden perforation along the outlet side, in order to insert 68 ℃ of low melting alloy pins 10, a porous net 9 and a porous square 7 are arranged, built-in 10 layer of 36 order copper mesh 8 between low melting alloy pin 10 and the spring 4.
The utility model is simple in structure, volume is little, in light weight, cost is low, safe and reliable, be applicable on the low-pressure gas pipeline that uses in family and kitchen, dining room, be a kind of novel safety devices against fire.
Claims (2)
1, the home pipeline coal gas fire insulation valve that is constituted by valve seat 1, valve body 5 and spool 6, the air inlet capping that it is characterized in that spool 6 radially has a plurality of inlet holes 2, capping is with rubber seal 3, spool partly is with spring 4 at valve pocket, radially there is hole, a garden outlet side of spool, and be inserted with low melting alloy pin 10, and a porous net 9 and a porous square 7 are arranged between low melting alloy pin 10 and the spring 4, multilayer copper mesh 8 is arranged in the net.
2, home pipeline coal gas fire insulation valve according to claim 1, the fusing point that it is characterized in that the low melting alloy pin is 68 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89201055 CN2048924U (en) | 1989-01-23 | 1989-01-23 | Fire insulation valve for household piped gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89201055 CN2048924U (en) | 1989-01-23 | 1989-01-23 | Fire insulation valve for household piped gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2048924U true CN2048924U (en) | 1989-12-06 |
Family
ID=4859025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89201055 Withdrawn CN2048924U (en) | 1989-01-23 | 1989-01-23 | Fire insulation valve for household piped gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2048924U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537457A (en) * | 2011-11-14 | 2012-07-04 | 于国威 | Fireproof safety valve |
| CN105508679A (en) * | 2015-12-31 | 2016-04-20 | 魏洁 | Automatic fire valve applied to flammable gas plastic pipeline |
| CN105972281A (en) * | 2016-07-29 | 2016-09-28 | 钦州学院 | Gravity-type mechanical fireproof safety valve |
| CN106015681A (en) * | 2016-07-29 | 2016-10-12 | 钦州学院 | Reusable mechanical fireproof safety valve |
| CN106051251A (en) * | 2016-07-29 | 2016-10-26 | 钦州学院 | Full-automatic mechanical fireproof safety valve |
| CN106267629A (en) * | 2016-08-15 | 2017-01-04 | 南通凌凌环保科技有限公司 | A kind of spark arrester |
| CN108884970A (en) * | 2016-03-28 | 2018-11-23 | 奥结茨株式会社 | Safety valve and liquid gas storage tank with safety valve |
-
1989
- 1989-01-23 CN CN 89201055 patent/CN2048924U/en not_active Withdrawn
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537457A (en) * | 2011-11-14 | 2012-07-04 | 于国威 | Fireproof safety valve |
| CN105508679A (en) * | 2015-12-31 | 2016-04-20 | 魏洁 | Automatic fire valve applied to flammable gas plastic pipeline |
| CN108884970A (en) * | 2016-03-28 | 2018-11-23 | 奥结茨株式会社 | Safety valve and liquid gas storage tank with safety valve |
| US10683947B2 (en) | 2016-03-28 | 2020-06-16 | Ojc Co., Ltd. | Safety valve and gas cylinder having same |
| CN108884970B (en) * | 2016-03-28 | 2020-10-09 | 奥结茨株式会社 | Safety valve and liquefied gas tank with safety valve |
| CN105972281A (en) * | 2016-07-29 | 2016-09-28 | 钦州学院 | Gravity-type mechanical fireproof safety valve |
| CN106015681A (en) * | 2016-07-29 | 2016-10-12 | 钦州学院 | Reusable mechanical fireproof safety valve |
| CN106051251A (en) * | 2016-07-29 | 2016-10-26 | 钦州学院 | Full-automatic mechanical fireproof safety valve |
| CN106051251B (en) * | 2016-07-29 | 2018-08-10 | 钦州学院 | Full automatic machinery fire-proof safety valve |
| CN106015681B (en) * | 2016-07-29 | 2018-08-28 | 钦州学院 | Reused machinery fire-proof safety valve |
| CN106267629A (en) * | 2016-08-15 | 2017-01-04 | 南通凌凌环保科技有限公司 | A kind of spark arrester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |