CN202497629U - Pore plate type spark and particle blocking device - Google Patents
Pore plate type spark and particle blocking device Download PDFInfo
- Publication number
- CN202497629U CN202497629U CN2012200333006U CN201220033300U CN202497629U CN 202497629 U CN202497629 U CN 202497629U CN 2012200333006 U CN2012200333006 U CN 2012200333006U CN 201220033300 U CN201220033300 U CN 201220033300U CN 202497629 U CN202497629 U CN 202497629U
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- CN
- China
- Prior art keywords
- positive
- orifice
- blocking device
- blast pipe
- orifice plate
- 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- Withdrawn - After Issue
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Abstract
The utility model relates to a pore plate type spark and particle blocking device which is applied to a positive-voltage explosion-proof control cabinet and comprises an exhaust pipe, at least one pore plate and a shield. The exhaust pipe is fixedly and penetratingly arranged in an exhaust port of the positive-voltage explosion-proof control cabinet, the pore plates are fixedly arranged at the inner end of the exhaust pipe, a plurality of through pores are arranged on each pore plate, the shield is sleeved on the pore plates, the inner wall of the shield is fixedly connected with the edges of the pore plates, and a certain distance is reserved between the edge of an opening of the shield and the inner wall of the positive-voltage explosion-proof control cabinet. The pore plate type spark and particle blocking device is simple and smart in structure and is arranged at the exhaust port of the positive-voltage explosion-proof control cabinet, spark and hot particles which are generated when the explosion-proof control cabinet operates are stopped from being discharged to external dangerous environments of the control cabinet by the pore plates, the shield and the exhaust pipe, the cooling distance of the spark and the particles is increased, and safe operational reliability of the positive-voltage explosion-proof control cabinet is improved. In addition, the pore plates, the shield and the exhaust pipe are made of metal materials, blocking materials are optimized, and the service life of the blocking device is prolonged.
Description
Technical field
The utility model 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, easy ageing, and 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 purpose of the utility model is to overcome the deficiency that exists 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.
The technical scheme that provides according to the utility model: orifice-plate type spark particulate blocking device; It is characterized in that: comprise blast pipe, orifice plate and guard shield; Said blast pipe fixedly is located in the exhaust outlet of positive-pressure explosion-proof switch board; Be fixed with at least two orifice plates in blast pipe the inner, have a plurality of through holes on the orifice plate; Said guard shield is enclosed within on the orifice plate, and the guard shield inwall is connected fixing with the orifice plate edge, and the inwall of the edge of guard shield opening and positive-pressure explosion-proof switch board leaves a determining deviation.
As the further improvement of the utility model, the through hole on the said different orifice plates staggers each other, 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 the further improvement of the utility model, the quantity of said orifice plate is two.
As the further improvement of the utility model, said blast pipe is threaded or is welded in the exhaust outlet of positive-pressure explosion-proof switch board, and said orifice plate is threaded or is welded on the blast pipe, and said guard shield inwall and the welding of orifice plate edge are fixing.
As the further improvement of the utility model, said blast pipe, orifice plate and guard shield all are to adopt metal material to process.
The utility model compared with prior art; Advantage is: the utility model simple and ingenious structure; 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 through parts such as orifice plate, guard shield and blast pipes, increased the cooling distance of spark particle, improved the safe operation reliability of positive-pressure explosion-proof switch board.Said orifice plate, guard shield and blast pipe all are to adopt metal material to process, and have optimized barrier material, prolong the service life of baffling device.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
The specific embodiment
Below in conjunction with concrete accompanying drawing and embodiment the utility model is described further.
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 process.
As shown in Figure 1, said blast pipe 1 fixedly is located in the exhaust outlet of positive-pressure explosion-proof switch board with the mode that is threaded or welds, and is fixed with two orifice plates 2 in blast pipe 1 the inner with the mode that is threaded or weld, and has a plurality of through hole 2a on the orifice plate 2; Said 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 said different orifice plates 2 staggers each other, 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 gets into from guard shield 3 openings, passes the through hole 2a on the orifice plate 2 successively, gets into blast pipe 1; In the process of circulation of gas; Spark that possibly be mingled with in the gas or hot particle obtain cooling and intercept; After after blast pipe 1 is discharged to the outside explosion risk gaseous environment of positive-pressure explosion-proof switch board, can not bring extraneous explosion dangerous, 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); Said blast pipe (1) fixedly is located in the exhaust outlet of positive-pressure explosion-proof switch board; Be fixed with at least one orifice plate (2) in blast pipe (1) the inner, have a plurality of through holes (2a) on the orifice plate (2); Said guard shield (3) is enclosed within on the orifice plate (2), and guard shield (3) inwall is connected fixing with orifice plate (2) edge, 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 said different orifice plates (2) staggers each other; 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 said orifice plate (2) is two.
4. orifice-plate type spark particulate blocking device as claimed in claim 1; It is characterized in that: said blast pipe (1) is threaded or is welded in the exhaust outlet of positive-pressure explosion-proof switch board; Said orifice plate (2) is threaded or is welded on the blast pipe (1), and said 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: said blast pipe (1), orifice plate (2) and guard shield (3) all are to adopt metal material to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200333006U CN202497629U (en) | 2012-02-03 | 2012-02-03 | Pore plate type spark and particle blocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200333006U CN202497629U (en) | 2012-02-03 | 2012-02-03 | Pore plate type spark and particle blocking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202497629U true CN202497629U (en) | 2012-10-24 |
Family
ID=47034260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200333006U Withdrawn - After Issue CN202497629U (en) | 2012-02-03 | 2012-02-03 | Pore plate type spark and particle blocking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202497629U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553108A (en) * | 2012-02-03 | 2012-07-11 | 无锡博睿奥克电气有限公司 | Orifice-plate spark particle obstructing device |
-
2012
- 2012-02-03 CN CN2012200333006U patent/CN202497629U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553108A (en) * | 2012-02-03 | 2012-07-11 | 无锡博睿奥克电气有限公司 | Orifice-plate spark particle obstructing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121024 Effective date of abandoning: 20131009 |
|
| RGAV | Abandon patent right to avoid regrant |