CN201711333U - Negative pressure collection device used for toxic or harmful gas - Google Patents
Negative pressure collection device used for toxic or harmful gas Download PDFInfo
- Publication number
- CN201711333U CN201711333U CN 201020192645 CN201020192645U CN201711333U CN 201711333 U CN201711333 U CN 201711333U CN 201020192645 CN201020192645 CN 201020192645 CN 201020192645 U CN201020192645 U CN 201020192645U CN 201711333 U CN201711333 U CN 201711333U
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- Prior art keywords
- negative pressure
- toxic
- seal closure
- harmful
- airbag
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Abstract
The utility model discloses a negative pressure collection device used for toxic or harmful gas. The negative pressure collection device comprises a seal cover, and is characterized in that a flexible air bag is placed inside the seal cover; the air bag is fixedly connected with an air tube, and has one end positioned outside the seal cover; the seal cover is made of rigid material; and an air extracting pump is connected with the seal cover through a pipeline. The negative pressure collection device can effectively prevent air from leaking, thereby improving the security of production.
Description
Technical field
The utility model relates to a kind of gathering-device that is used for toxic and harmful, relates in particular to the gathering-device that normal pressure in a kind of Chemical Manufacture or little negative pressure are produced toxic and harmful.
Background technology
At present in Chemical Manufacture, when normal pressure is produced toxic and harmful, the gathering-device of gas has a variety of, as use rigidity air reservoir, flexible airbag to collect, but when rigidity air reservoir and flexible airbag are collected, system provides certain normal pressure before all needing, the toxic and harmful initiation poisoning that leaks outside easily under barotropic state.
The utility model content
The purpose of this utility model is the above-mentioned deficiency at prior art, and a kind of negative pressure gathering-device that is used for toxic and harmful is provided, and it can prevent effectively that gas from leaking outside, thereby improves the security of producing.
For achieving the above object, the negative pressure gathering-device that is used for toxic and harmful of the present utility model comprises seal closure, it is characterized in that being placed with flexible airbag in seal closure, and airbag is fixedly connected with tracheae, and an end of tracheae is positioned at outside the seal closure; Described seal closure is a rigid material, and an aspiration pump is connected with seal closure by pipeline.
As further improvement of the utility model, above-mentioned seal closure is transparent rigid material; Be convenient to observe the collection status of airbag;
Above-mentioned seal closure can be pmma material;
Above-mentioned airbag can be the rubber material;
Above-mentioned airbag also can be polyethylene film;
During use, tracheae is connected with process units, starts aspiration pump, be negative pressure state in the seal closure, causing airbag has expansion trend, makes to be negative pressure state in the airbag, can make the device of producing toxic and harmful also be negative pressure or micro-vacuum state, gas is negative pressure state by tracheae and is taken in airbag; When process units can not provide enough malleations, this gathering-device was effective especially, and negative pressure state can strict prevent toxic and harmful the leaking outside of each seal point, and improved the security of producing.
Description of drawings
Fig. 1 is the front view of the utility model embodiment.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
As shown in Figure 1, this is used for the negative pressure gathering-device of toxic and harmful, comprise the seal closure 1 that constitutes by pmma material, be positioned over the rubber material airbag 2 in the seal closure 1, airbag 2 is fixedly connected with tracheae 3, one end of tracheae 3 is positioned at outside the seal closure 1, and an aspiration pump 4 is connected with seal closure 1 by pipeline;
During use, tracheae 3 is connected with process units, start aspiration pump 4, be negative pressure state in the seal closure 1, cause airbag 2 expansion trend is arranged, make in the airbag 2 to be negative pressure state, can make the device of producing toxic and harmful also be negative pressure or micro-vacuum state, gas is negative pressure state by tracheae 3 and is taken in airbag 2; When process units can not provide enough malleations, this gathering-device was effective especially, and negative pressure state can strict prevent toxic and harmful the leaking outside of each seal point, and improved the security of producing; Seal closure 1 is not yielding and have a transparency under negative pressure state, so that the collection status of observation airbag 2.
The utility model is not limited to above-mentioned embodiment, and above-mentioned airbag also can be polyethylene film, and aspiration pump can adopt that water ring pump, jet pump, piston pump etc. are various to provide a kind of in the negative pressure.
Claims (5)
1. be used for the negative pressure gathering-device of toxic and harmful, comprise seal closure, it is characterized in that being placed with flexible airbag in seal closure, airbag is fixedly connected with tracheae, and an end of tracheae is positioned at outside the seal closure; Described seal closure is a rigid material, and an aspiration pump is connected with seal closure by pipeline.
2. the negative pressure gathering-device that is used for toxic and harmful as claimed in claim 1 is characterized in that described seal closure is transparent rigid material.
3. the negative pressure gathering-device that is used for toxic and harmful as claimed in claim 2 is characterized in that described seal closure is a pmma material.
4. the negative pressure gathering-device that is used for toxic and harmful as claimed in claim 1 or 2 is characterized in that described airbag is the rubber material.
5. the negative pressure gathering-device that is used for toxic and harmful as claimed in claim 1 or 2 is characterized in that described airbag is a polyethylene film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020192645 CN201711333U (en) | 2010-05-17 | 2010-05-17 | Negative pressure collection device used for toxic or harmful gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020192645 CN201711333U (en) | 2010-05-17 | 2010-05-17 | Negative pressure collection device used for toxic or harmful gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201711333U true CN201711333U (en) | 2011-01-19 |
Family
ID=43457330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020192645 Expired - Fee Related CN201711333U (en) | 2010-05-17 | 2010-05-17 | Negative pressure collection device used for toxic or harmful gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201711333U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865857A (en) * | 2016-04-06 | 2016-08-17 | 易安蓝焰煤与煤层气共采技术有限责任公司 | Chemical energy gas collection-output technical method and device |
-
2010
- 2010-05-17 CN CN 201020192645 patent/CN201711333U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865857A (en) * | 2016-04-06 | 2016-08-17 | 易安蓝焰煤与煤层气共采技术有限责任公司 | Chemical energy gas collection-output technical method and device |
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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: 20110119 Termination date: 20170517 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |