CN2516833Y - Back-fire relief valve - Google Patents
Back-fire relief valve Download PDFInfo
- Publication number
- CN2516833Y CN2516833Y CN 02218547 CN02218547U CN2516833Y CN 2516833 Y CN2516833 Y CN 2516833Y CN 02218547 CN02218547 CN 02218547 CN 02218547 U CN02218547 U CN 02218547U CN 2516833 Y CN2516833 Y CN 2516833Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- spool
- push rod
- gas channel
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a flame arrester, in particular to a flame arrester used for fire retardance of pipelines, comprising a valve body and a valve cap fixed to the valve body with threads. The valve body and the valve cap are equipped with an airflow passage each, a valve sleeve, which is equipped with an airflow passage and a valve core, is arranged between the valve body and the valve cap; made of low melting point metal, the valve core is equipped with an airflow passage, and a push rod is arranged inside the airflow passage of the valve body; one end of the push rod is propped under the valve core while the other end is propped on the valve body with an elastic body. The utility model has the advantages of novel and reasonable structural design, low price, excellent effect and wide application range.
Description
Technical field
The utility model relates to a kind of spark arrester, in particular for the spark arrester of pipeline back-fire relief.
Background technology
As everyone knows, flammable explosive gas such as acetylene gas and coal gas are industrial purposes common fuels very widely.In use, because the supply of air, and the existence of many-sided factors such as speed of burning, if add the device that does not stop flame back to burn in the pipeline, flame takes place and back burns and cause a serious accident or produce the production fault in regular meeting.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of spark arrester, and this spark arrester can not only stop flame to strile-back, and can reuse.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of spark arrester, have valve body and valve gap, valve body and valve gap screw thread are fixed, and on valve body and the valve gap gas channel are arranged, valve body and valve cover chamber are provided with valve pocket, gas channel is arranged on the valve pocket, and be provided with spool, spool is made by low melting point metal material, have gas channel on the spool, be provided with push rod in the gas channel of valve body, an end of push rod withstands on the spool, and the other end withstands on the valve body by elastomer.
Further: described spool is made by sn-bi alloy; Described elastomer is a spring.
Further: be provided with filter core in the described valve gap; Described filter core is a filter screen; Described filter screen two ends are provided with wire.
Again further: be provided with adjusting nut before the described filter core.
Also further: between described valve pocket and valve body, valve pocket and valve cover chamber be provided with pad, is provided with sealing ring between push rod and valve pocket.
The beneficial effects of the utility model are, structural design is new reasonable, and price is low, and is effective, applied widely.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1. valve body, 2. valve gap, 3. valve pocket, 4. spool, 5. push rod, 6. elastomer, 7. filter core, 8. wire, 9. adjusting nut, 10. pad, 11. sealing rings.
The specific embodiment
Spark arrester as shown in Figure 1, have valve body 1 and valve gap 2, valve body 1 and valve gap 2 screw threads are fixed, there is gas channel at the center of valve body 1 and valve gap 2, fuel gas therefrom passes through, 2 of valve body 1 and valve gaps are provided with valve pocket 3, on the valve pocket 3 gas channel is arranged, and be provided with spool 4, spool 4 is made by sn-bi alloy, has gas channel on the spool 4, is provided with thick, the little step push rod 5 in two between being in the gas channel of valve body 1, one end of push rod 5 withstands on the spool 4, and the other end withstands on the valve body 1 by spring 6.Be provided with stainless steel filtering net 7 in the valve gap 2.Filter screen 7 two ends are provided with wire 8.Be provided with adjusting nut 9 before the filter screen 7, in the middle of the adjusting nut 9 gas channel arranged, and filter screen 7 and wire 8 are fixed in the gas channel of valve gap 2.1 of valve pocket 3 and valve body, valve pocket 3 and 2 of valve gaps are provided with pad 10, and 3 of push rod 5 and valve pockets are provided with sealing ring 11.
When the flame backflow takes place when, run into spool 4, owing to made by sn-bi alloy, fusing point is lower, fusing automatically immediately, at this moment, spring 6 advances push rod 5 toward valve pocket 3 directions, until blocking gas channel, close source of the gas automatically; Simultaneously, the spool 4 of fusing flows to filter screen 7 and wire 8, causes this section gas channel to stop up, and stops tempering to take place.The filter screen 7 and the wire 8 of this structure are also washable, reusable, have improved utilization rate.
Claims (8)
1, a kind of spark arrester, have valve body (1) and valve gap (2), valve body (1) and valve gap (2) screw thread are fixed, on valve body (1) and the valve gap (2) gas channel is arranged, it is characterized in that: be provided with valve pocket (3) between valve body (1) and valve gap (2), valve pocket has gas channel on (3), and be provided with spool (4), spool (4) is made by low melting point metal material, spool has gas channel on (4), be provided with push rod (5) in the gas channel of valve body (1), an end of push rod (5) withstands on the spool (4), and the other end withstands on the valve body (1) by elastomer (6).
2, spark arrester according to claim 1 is characterized in that: described spool (4) is made by sn-bi alloy.
3, spark arrester according to claim 1 is characterized in that: described elastomer (6) is a spring.
4, spark arrester according to claim 1 is characterized in that: be provided with filter core (7) in the described valve gap (2).
5, spark arrester according to claim 4 is characterized in that: described filter core (7) is a filter screen.
6, spark arrester according to claim 5 is characterized in that: described filter screen (7) two ends are provided with wire (8).
7, according to claim 4 or 6 described spark arresters, it is characterized in that: the preceding adjusting nut (9) that is provided with of described filter core (7).
8, according to claim 1 or 4 or 7 described spark arresters, it is characterized in that: between described valve pocket (3) and valve body (1), be provided with pad (10) between valve pocket (3) and valve gap (2), be provided with sealing ring (11) between push rod (5) and valve pocket (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02218547 CN2516833Y (en) | 2002-01-25 | 2002-01-25 | Back-fire relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02218547 CN2516833Y (en) | 2002-01-25 | 2002-01-25 | Back-fire relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2516833Y true CN2516833Y (en) | 2002-10-16 |
Family
ID=33697176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02218547 Expired - Fee Related CN2516833Y (en) | 2002-01-25 | 2002-01-25 | Back-fire relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2516833Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777916A (en) * | 2012-08-29 | 2012-11-14 | 北京中气华辰新能源技术开发有限公司 | Tempering preventing device |
| CN104080518A (en) * | 2012-01-05 | 2014-10-01 | 乔瓦尼·米肖夏 | Safety assembly for containers and conduits for combustible fluids |
| CN109282141A (en) * | 2017-07-21 | 2019-01-29 | 张佳豪 | Explosion-proof apparatus and air supply system |
| CN111888693A (en) * | 2020-06-08 | 2020-11-06 | 汪洵 | High pipeline fire prevention ware of security |
-
2002
- 2002-01-25 CN CN 02218547 patent/CN2516833Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104080518A (en) * | 2012-01-05 | 2014-10-01 | 乔瓦尼·米肖夏 | Safety assembly for containers and conduits for combustible fluids |
| CN104080518B (en) * | 2012-01-05 | 2016-12-14 | 乔瓦尼·米肖夏 | The container of combustible fluid and the security component of conduit |
| CN102777916A (en) * | 2012-08-29 | 2012-11-14 | 北京中气华辰新能源技术开发有限公司 | Tempering preventing device |
| CN109282141A (en) * | 2017-07-21 | 2019-01-29 | 张佳豪 | Explosion-proof apparatus and air supply system |
| CN111888693A (en) * | 2020-06-08 | 2020-11-06 | 汪洵 | High pipeline fire prevention ware of security |
| CN111888693B (en) * | 2020-06-08 | 2021-09-07 | 蒯念生 | High pipeline fire prevention ware of security |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |