CN102553108B - Orifice-plate spark particle obstructing device - Google Patents
Orifice-plate spark particle obstructing device Download PDFInfo
- Publication number
- CN102553108B CN102553108B CN 201210023569 CN201210023569A CN102553108B CN 102553108 B CN102553108 B CN 102553108B CN 201210023569 CN201210023569 CN 201210023569 CN 201210023569 A CN201210023569 A CN 201210023569A CN 102553108 B CN102553108 B CN 102553108B
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- orifice plate
- orifice
- blast pipe
- plate
- pressure explosion
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Abstract
The invention relates to an orifice-plate spark particle obstructing device which is applied on a positive pressure explosion-proof control cabinet. The obstructing device contains an exhaust pipe, an orifice plate and a shield. The exhaust pipe is fixedly arranged through an air exhaust opening of the positive pressure explosion-proof control cabinet. At least one orifice plate is fixed on the internal end of the exhaust pipe. The orifice plate is equipped with a plurality of through holes. The shield is sleeved on the orifice plate. The inner wall of the shield is fixedly connected with theedge of the orifice plate. There is a certain distance from the edge of the shield opening to the inner wall of the positive pressure explosion-proof control cabinet. The device has a simple and ingenious structure, is arranged at the air exhaust opening of the positive pressure explosion-proof control cabinet, and can be used to obstruct and intercept sparks and heat particles generated during the operation process of the explosion-proof control cabinet to discharge into an external dangerous environment of the control cabinet through the orifice plate, the shield and the exhaust pipe. Thus,the cooling distance of the spark particles is increased, and safe operation reliability of the positive pressure explosion-proof control cabinet is raised. The orifice plate, the shield and the exhaust pipe are all prepared from a metal material, the obstructing material is optimized, and the service life of the obstructing device is prolonged.
Description
Technical field
The present invention relates to a kind of orifice-plate type spark particulate blocking device that is applied on the positive-pressure explosion-proof switch board.
Background technology
In the prior art, the exhaust outlet of positive-pressure explosion-proof switch board normally adopts rubber slab to the baffling device of spark particle, and it is simple in structure, and aging easily, long-time running can not be guaranteed the effective obstruct to the spark particle, influences the safe handling of positive-pressure explosion-proof switch board.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of orifice-plate type spark particulate blocking device of simple and ingenious structure is provided, it adopts AND DEWATERING FOR ORIFICE STRUCTURE, the spark that produces in the positive-pressure explosion-proof switch board or hot particle are cooled off and intercept, improved the safe operation reliability of positive-pressure explosion-proof switch board in the explosion risk environment.
According to technical scheme provided by the invention: orifice-plate type spark particulate blocking device, it is characterized in that: comprise blast pipe, orifice plate and guard shield, described blast pipe fixedly is located in the exhaust outlet of positive-pressure explosion-proof switch board, in blast pipe the inner at least two orifice plates are arranged fixedly, have a plurality of through holes on the orifice plate; Described guard shield is enclosed within on the orifice plate, and guard shield inwall and orifice plate edge are connected and fixed, and the inwall of the edge of guard shield opening and positive-pressure explosion-proof switch board leaves a determining deviation.
As a further improvement on the present invention, the through hole on the described different orifice plates staggers mutually, and orifice plate is the closer to the air inlet end of blast pipe, and the through hole on this orifice plate is the closer to blast pipe.
As a further improvement on the present invention, the quantity of described orifice plate is two.
As a further improvement on the present invention, described blast pipe is threaded or is welded in the exhaust outlet of positive-pressure explosion-proof switch board, and described orifice plate is threaded or is welded on the blast pipe, and described guard shield inwall and the welding of orifice plate edge are fixing.
As a further improvement on the present invention, described blast pipe, orifice plate and guard shield all are to adopt metal material to make.
The present invention compared with prior art, advantage is: simple and ingenious structure of the present invention, it is arranged on the exhaust ports of positive-pressure explosion-proof switch board, intercept the spark that produces in the interception flame proof switch board running and hot particulate emission to being discharged in the outside hazardous environment of switch board by parts such as orifice plate, guard shield and blast pipes, increase the cooling distance of spark particle, improved the safe operation reliability of positive-pressure explosion-proof switch board.Described orifice plate, guard shield and blast pipe all are to adopt metal material to make, and have optimized barrier material, prolong the service life of baffling device.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention.
The specific embodiment
The invention will be further described below in conjunction with concrete drawings and Examples.
As shown in the figure, the orifice-plate type spark particulate blocking device among the embodiment mainly is made up of parts such as blast pipe 1, orifice plate 2 and guard shields 3, and described blast pipe 1, orifice plate 2 and guard shield 3 all are to adopt metal material to make.
As shown in Figure 1, described blast pipe 1 fixedly is located in the exhaust outlet of positive-pressure explosion-proof switch board in the mode that is threaded or welds, and in the mode that is threaded or welds two orifice plates 2 is arranged fixedly in blast pipe 1 the inner, has a plurality of through hole 2a on the orifice plate 2; Described guard shield 3 is enclosed within on the orifice plate 2, and guard shield 3 inwalls and the welding of orifice plate 2 edges are fixing, and the edge of guard shield 3 openings and the inwall of positive-pressure explosion-proof switch board leave a determining deviation, so that the gas in the positive-pressure explosion-proof switch board can be discharged.
As shown in Figure 1, the through hole 2a on the described different orifice plates 2 staggers mutually, and orifice plate 2 is the closer to the air inlet end of blast pipe 1, and the through hole 2a on this orifice plate 2 is the closer to blast pipe 1.Can more effectively intercept like this and discharge spark or the hot particle that is mingled with in the gas, make gas in the process of circulation, flow to the air inlet end of blast pipe 1 gradually simultaneously.
During concrete the application, the gas of discharging in the positive-pressure explosion-proof switch board enters from guard shield 3 openings, passes the through hole 2a on the orifice plate 2 successively, enters blast pipe 1; In the process of circulation of gas, the spark that may be mingled with in the gas or hot particle obtain cooling and intercept, be discharged to the explosion risk gaseous environment of positive-pressure explosion-proof switch board outside finally by blast pipe 1 after, can not bring extraneous explosion danger, make the safe operation of positive-pressure explosion-proof switch board.
Claims (5)
1. orifice-plate type spark particulate blocking device, it is characterized in that: comprise blast pipe (1), orifice plate (2) and guard shield (3), described blast pipe (1) fixedly is located in the exhaust outlet of positive-pressure explosion-proof switch board, in blast pipe (1) the inner at least one orifice plate (2) arranged fixedly, have a plurality of through holes (2a) on the orifice plate (2); Described guard shield (3) is enclosed within on the orifice plate (2), and guard shield (3) inwall and orifice plate (2) edge are connected and fixed, and the edge of guard shield (3) opening and the inwall of positive-pressure explosion-proof switch board leave a determining deviation.
2. orifice-plate type spark particulate blocking device as claimed in claim 1, it is characterized in that: the through hole (2a) on the described different orifice plates (2) staggers mutually, orifice plate (2) is the closer to the air inlet end of blast pipe (1), and the through hole (2a) on this orifice plate (2) is the closer to blast pipe (1).
3. orifice-plate type spark particulate blocking device as claimed in claim 1, it is characterized in that: the quantity of described orifice plate (2) is two.
4. orifice-plate type spark particulate blocking device as claimed in claim 1, it is characterized in that: described blast pipe (1) is threaded or is welded in the exhaust outlet of positive-pressure explosion-proof switch board, described orifice plate (2) is threaded or is welded on the blast pipe (1), and described guard shield (3) inwall and the welding of orifice plate (2) edge are fixing.
5. orifice-plate type spark particulate blocking device as claimed in claim 1 is characterized in that: described blast pipe (1), orifice plate (2) and guard shield (3) all are to adopt metal material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210023569 CN102553108B (en) | 2012-02-03 | 2012-02-03 | Orifice-plate spark particle obstructing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210023569 CN102553108B (en) | 2012-02-03 | 2012-02-03 | Orifice-plate spark particle obstructing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102553108A CN102553108A (en) | 2012-07-11 |
| CN102553108B true CN102553108B (en) | 2013-10-09 |
Family
ID=46400538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210023569 Expired - Fee Related CN102553108B (en) | 2012-02-03 | 2012-02-03 | Orifice-plate spark particle obstructing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102553108B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5978954B2 (en) * | 2012-11-26 | 2016-08-24 | 三菱自動車工業株式会社 | Rotating electrical machine equipment |
| CN103553079A (en) * | 2013-10-30 | 2014-02-05 | 天津市化工设计院 | Explosion-proof treatment method of bared conductor of sodium cyanide cracking furnace |
| CN110251864B (en) * | 2019-06-26 | 2020-08-14 | 宿州市徽腾知识产权咨询有限公司 | Spark suppression device |
| CN113813529A (en) * | 2020-06-18 | 2021-12-21 | 中国石油化工股份有限公司 | Flame arrester with fire retardant plate |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2154081Y (en) * | 1993-06-07 | 1994-01-26 | 郑红 | Anti-explosive, anti-fire respirtory valve |
| CN2756914Y (en) * | 2004-08-19 | 2006-02-08 | 张志宏 | Novel fire retardant aspiration valve |
| CN201099499Y (en) * | 2007-10-12 | 2008-08-13 | 中国石化股份胜利油田分公司现河采油厂 | Petroleum storage tank explosion-proof fire retardant respiring valve |
| KR100822635B1 (en) * | 2007-10-15 | 2008-04-16 | 전유식 | Auto flashback arrestor |
| CN202497629U (en) * | 2012-02-03 | 2012-10-24 | 无锡博睿奥克电气有限公司 | Pore plate type spark and particle blocking device |
-
2012
- 2012-02-03 CN CN 201210023569 patent/CN102553108B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN102553108A (en) | 2012-07-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131009 Termination date: 20190203 |