CN204253966U - A kind of buffering type explosion-proof relief valve - Google Patents
A kind of buffering type explosion-proof relief valve Download PDFInfo
- Publication number
- CN204253966U CN204253966U CN201420685566.8U CN201420685566U CN204253966U CN 204253966 U CN204253966 U CN 204253966U CN 201420685566 U CN201420685566 U CN 201420685566U CN 204253966 U CN204253966 U CN 204253966U
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- China
- Prior art keywords
- cover plate
- valve body
- self
- buffering
- resetting
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of buffering type explosion-proof relief valve, belong to Decompression valves technical field, it comprises valve body, valve body is provided with the Self-resetting cover plate covered on valve body, Self-resetting cover plate is opened and closed by axis of rotation, this rotating shaft is arranged on the side of valve body, is also provided with the spacing blocking arm for limiting Self-resetting cover plate opening angle in this side of valve body; Described spacing blocking arm is provided with the buffering blade for cushioning Self-resetting cover plate and buffer stopper.Buffering type explosion-proof relief valve of the present utility model, by arranging buffering blade and rupture pressure disc, when system is blasted, buffering blade can absorb that blast produces well to cover plate impact force; Rupture pressure disc produces explosion because blast produces high pressure draught simultaneously, together plays the effect of exhaust pressure relief, and can protect Decompression valves and manufacturing mechanism, safeguard the person and property safety with cover plate; Simultaneously after blast terminates, cover plate can restore, and possesses good practicability.
Description
Technical field
The utility model belongs to Decompression valves technical field, is specifically related to a kind of buffering type explosion-proof relief valve.
Background technique
Coal dust air venting valve is mainly used in coal dust preparation system in industrial processes, as: each position in the coal dust preparation systems such as run coal bin, coal powder storehouse, bag gather dust, coal mill, coal dust claim, conveyance conduit.When whole pipe-line system pressure exceedes required stable operation pressure, even the combustible combustion explosion times such as coal dust occur, the gas in pipeline, by this Decompression valves exhaust pressure relief, prevents from forming serious explosive accident.
Decompression valves of the prior art is without damping device and rupture pressure disc, when pressure is excessive or the unexpected explosion time of coal dust vigorous combustion, huge impact force not only can make Decompression valves distortion break down, and then damages manufacturing mechanism, more may cause casualties, cause the dual impaired of the economic and person.
Summary of the invention
Model utility object: the purpose of this utility model is to provide a kind of buffering type explosion-proof relief valve; make the explosion pressure that its vigorous combustion that can not only bear larger pressure or coal dust causes; and Decompression valves and manufacturing mechanism can be protected, safeguard the person and property safety.
Technological scheme: for realizing the object of above-mentioned model utility, the utility model adopts following technological scheme:
A kind of buffering type explosion-proof relief valve, comprise valve body, valve body is provided with the Self-resetting cover plate covered on valve body, and Self-resetting cover plate is opened and closed by axis of rotation, this rotating shaft is arranged on the side of valve body, is also provided with the spacing blocking arm for limiting Self-resetting cover plate opening angle in this side of valve body; Described spacing blocking arm is provided with the buffering blade for cushioning Self-resetting cover plate and buffer stopper.
Described buffer stopper is arranged on that spacing blocking arm is gentle to be rushed between blade.
Described valve body is provided with guard shield, in guard shield, is provided with rupture pressure disc.
The angle that described spacing blocking arm and the surface of valve body are formed is less than 90 °.
Described valve body is also provided with the position switch for detecting Self-resetting cap locations.
Beneficial effect: compared with prior art, buffering type explosion-proof relief valve of the present utility model, by arranging damping device and rupture pressure disc, can when larger pressure, the explosion pressure that the vigorous combustion that the Decompression valves made can not only bear larger pressure or coal dust causes, and Decompression valves and manufacturing mechanism can be protected, safeguard the person and property safety; Simultaneously after blast terminates, cover plate can restore, and possesses good practicability.
Accompanying drawing explanation
Fig. 1 is the structural representation of buffering type explosion-proof relief valve.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
As shown in Figure 1, buffering type explosion-proof relief valve comprises valve body 1, Self-resetting cover plate 2, spacing blocking arm 3, guard shield 4, rupture pressure disc 5, buffering blade 6 and buffer stopper 7; Valve body 1 is provided with the Self-resetting cover plate 2 covered on valve body 1, Self-resetting cover plate 2 is opened by axis of rotation, closed, rotating shaft is arranged on the side of valve body 1, the spacing blocking arm 3 for limiting Self-resetting cover plate 2 opening angle is also provided with in this side of valve body 1, spacing blocking arm 3 is provided with buffering blade 6, between buffering blade 6 and spacing blocking arm 3, is provided with buffer stopper 7; Valve body 1 is provided with guard shield 4, is provided with rupture pressure disc 5 in guard shield 4, rupture pressure disc 5 protected by guard shield 4, in case poke; Rupture pressure disc 5, under closed system mesohigh state, can produce explosion, plays exhaust pressure relief effect.Wherein, the angle that spacing blocking arm 3 and the surface of valve body 1 are formed is less than 90 °, and like this in end such as blasts, or when pipe-line system is recovered normal, Self-resetting cover plate 2, under its Action of Gravity Field, realizes automatically reseting.Valve body 1 is also provided with the position switch 8 for detecting Self-resetting cover plate 2 position.
Working procedure: exceed designed pressure (1500Pa) when whole pipe-line system pressure or coal dust firing explosion time occurs, under the impact that Self-resetting cover plate 2 produces at high pressure draught, overturn around the shaft and open rapidly, impact, on the buffering blade 6 arranged thereafter and buffer stopper 7, finally stops at spacing blocking arm 3 place; Meanwhile, rupture pressure disc 5 is under closed system mesohigh state, and produce explosion, both all play exhaust pressure relief effect.When end such as blasts, or when pipe-line system is recovered normal, Self-resetting cover plate 2, under its Action of Gravity Field, automatically resets, and meanwhile, needs to repair rupture pressure disc 5.Valve body 1 is also provided with position switch 8, is used for detecting Self-resetting cover plate 2 position, reaches the object of remote monitoring, position switch display cap locations, through central control chamber, can realize monitoring object.Transitional connection pipe is connected with the pipeline of peripheral hardware.
Claims (5)
1. a buffering type explosion-proof relief valve, it is characterized in that: comprise valve body (1), valve body (1) is provided with the Self-resetting cover plate (2) covered on valve body (1), Self-resetting cover plate (2) is opened and closed by axis of rotation, this rotating shaft is arranged on the side of valve body (1), is also provided with the spacing blocking arm (3) for limiting Self-resetting cover plate (2) opening angle in this side of valve body (1); Described spacing blocking arm (3) is provided with the buffering blade (6) for cushioning Self-resetting cover plate (2) and buffer stopper (7).
2. buffering type explosion-proof relief valve according to claim 1, is characterized in that: described buffer stopper (7) is arranged between spacing blocking arm (3) and buffering blade (6).
3. buffering type explosion-proof relief valve according to claim 1, is characterized in that: on described valve body (1), be provided with guard shield (4), be provided with rupture pressure disc (5) in guard shield (4).
4. buffering type explosion-proof relief valve according to claim 1, is characterized in that: the angle that described spacing blocking arm (3) is formed with the surface of valve body (1) is less than 90 °.
5. buffering type explosion-proof relief valve according to claim 1, is characterized in that: on described valve body (1), be also provided with the position switch (8) for detecting Self-resetting cover plate (2) position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420685566.8U CN204253966U (en) | 2014-11-17 | 2014-11-17 | A kind of buffering type explosion-proof relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420685566.8U CN204253966U (en) | 2014-11-17 | 2014-11-17 | A kind of buffering type explosion-proof relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204253966U true CN204253966U (en) | 2015-04-08 |
Family
ID=52958273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420685566.8U Expired - Fee Related CN204253966U (en) | 2014-11-17 | 2014-11-17 | A kind of buffering type explosion-proof relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204253966U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107477179A (en) * | 2017-08-11 | 2017-12-15 | 上海化工研究院有限公司 | A kind of pour angle compensation gravity open-type buffers pressure relief device |
| CN108061186A (en) * | 2017-10-23 | 2018-05-22 | 李艺 | It is a kind of to be used for releasing pressure automatically and the safety valve resetted in pyrolytic process |
-
2014
- 2014-11-17 CN CN201420685566.8U patent/CN204253966U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107477179A (en) * | 2017-08-11 | 2017-12-15 | 上海化工研究院有限公司 | A kind of pour angle compensation gravity open-type buffers pressure relief device |
| CN107477179B (en) * | 2017-08-11 | 2019-07-19 | 上海化工研究院有限公司 | A kind of pour angle compensation gravity open-type buffering pressure relief device |
| CN108061186A (en) * | 2017-10-23 | 2018-05-22 | 李艺 | It is a kind of to be used for releasing pressure automatically and the safety valve resetted in pyrolytic process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150408 Termination date: 20161117 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |