CN202349603U - Negative-pressure anti-leaking device - Google Patents
Negative-pressure anti-leaking device Download PDFInfo
- Publication number
- CN202349603U CN202349603U CN2011204456373U CN201120445637U CN202349603U CN 202349603 U CN202349603 U CN 202349603U CN 2011204456373 U CN2011204456373 U CN 2011204456373U CN 201120445637 U CN201120445637 U CN 201120445637U CN 202349603 U CN202349603 U CN 202349603U
- Authority
- CN
- China
- Prior art keywords
- floater
- housing
- baffle plate
- negative
- floating drum
- 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
Links
- 239000003034 coal gas Substances 0.000 abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 5
- 229920002379 silicone rubber Polymers 0.000 abstract description 3
- 239000004945 silicone rubber Substances 0.000 abstract description 3
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 3
- 239000010935 stainless steel Substances 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000003405 preventing effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model relates to a negative-pressure anti-leaking device, which comprises a housing. The negative-pressure anti-leaking device is characterized in that a top cover is arranged at the top of the housing, a floater and a baffle plate are arranged in the housing, the baffle plate is positioned at the lower part of the floater, a sealing device is arranged on the baffle plate and engaged with the floater, an indicating rod is arranged at the middle of the housing, the indicating rod passes through the middle part of the floater and the middle part of the baffle plate, a breather valve is arranged on the top cover, and the breather valve is positioned on one side of the indicating rod. The negative-pressure anti-leaking device has the advantages that the internal structure is simple and reliable, the volume and weight of the floater are calculated and designed particularly to ensure that the floater floats up when the water level rises and rapidly and reliably cut off the coal gas when the water level declines, the problem that no matched anti-leaking device is arranged on the present negative-pressure coal gas drainer is solved, the reliable protection is provided for the coal gas drainer under the negative-pressure working condition, both the floater and the housing are made of stainless steel materials, the seal ring is made of corrosion-proof silicone rubber, and the drainer is allowed to be applied to various working conditions.
Description
Technical field
The utility model relates to leakage preventer, relates in particular to a kind of negative pressure leakage preventer.
Background technique
At present on the market leakage preventer can only be applicable to that gas pressure is on the positive gas pipe line; When gas pipe line internal pressure (like blower fan suction port) when negative; Still do not have a kind of negative pressure leakage preventer on traditional negative pressure coal gas drainer, can play the gas leakage preventing effect of negative pressure water seal when breakdown.Therefore present leakage preventer can not be realized gas leakage preventing function under the negative pressure state, need improve leakage preventer.
The model utility content
The purpose of the utility model provides a kind of negative pressure leakage preventer.
The technological scheme that the utility model adopts is:
The negative pressure leakage preventer comprises housing, and said case top is provided with top cover; Be provided with floating drum and baffle plate in the said housing, said baffle plate is positioned at the floating drum bottom, and said baffle plate is provided with the seal arrangement that matches with floating drum; Said housing middle part is provided with indicating arm; Said indicating arm penetrates floating drum and baffle plate middle part, and said top cover is provided with inhalation valve, and said inhalation valve is positioned at indicating arm one side.
Said seal arrangement is a seal ring.
The utility model has the advantages that: internal structure is simple, reliable; The volume and weight of floating drum is through detailed calculated and design; Floating drum floats when guaranteeing the water level rising, cuts off coal gas during drawdown rapidly reliably, has changed the situation of the leakage preventer that does not match with it on the present negative pressure coal gas drainer; For the coal gas drainer under the negative pressure operating mode provides reliable protection; Floating drum and housing etc. all adopt stainless steel material, and seal ring adopts corrosion resistant silicone rubber material, guarantee that hydathode is suitable for various operating modes.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.
Fig. 1 is the structural representation of the utility model.
Wherein: 1, housing, 2, top cover, 3, floating drum, 4, baffle plate, 5, seal ring, 6, indicating arm, 7, inhalation valve.
Embodiment
As shown in Figure 1, the negative pressure leakage preventer of the utility model comprises housing 1; Housing 1 top is provided with top cover 2, is provided with floating drum 3 and baffle plate 4 in the housing 1, and baffle plate 4 is positioned at floating drum 3 bottoms; Baffle plate 4 is provided with the seal ring 5 that matches with floating drum 3, and housing 1 middle part is provided with indicating arm 6, and indicating arm 6 penetrates floating drum 3 and baffle plate 4 middle parts; Top cover 2 is provided with inhalation valve 7, and inhalation valve 7 is positioned at indicating arm 6 one sides, and internal structure is simple, reliable; The volume and weight of floating drum is through detailed calculated and design, and floating drum floats when guaranteeing the water level rising, cuts off coal gas during drawdown rapidly reliably; Changed the situation of the leakage preventer that does not match with it on the present negative pressure coal gas drainer, for the coal gas drainer under the negative pressure operating mode provides reliable protection, floating drum 3 and housing 1 etc. all adopts stainless steel material; Seal ring 5 adopts corrosion resistant silicone rubber material, guarantees that hydathode is suitable for various operating modes.
The working principle of the utility model: a floating drum is set in the leakage preventer reaches and the supporting seal arrangement of floating drum, the condensed water in gas pipe line gets into, and floating drum 3 floats under floating function; Floating drum 3 separates with seal arrangement; The condensed water of need discharging is discharged through waste pipe, when the gas pipe line middle water level descends or negative pressure water seal when breakdown floating drum decline under the suction of deadweight and negative pressure; Floating drum 3 forms reliable sealing with seal arrangement, stops coal gas to external leakage.
Claims (2)
1. the negative pressure leakage preventer comprises housing, it is characterized in that: said case top is provided with top cover; Be provided with floating drum and baffle plate in the said housing, said baffle plate is positioned at the floating drum bottom, and said baffle plate is provided with the seal arrangement that matches with floating drum; Said housing middle part is provided with indicating arm; Said indicating arm penetrates floating drum and baffle plate middle part, and said top cover is provided with inhalation valve, and said inhalation valve is positioned at indicating arm one side.
2. negative pressure leakage preventer according to claim 1 is characterized in that: said seal arrangement is a seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204456373U CN202349603U (en) | 2011-11-11 | 2011-11-11 | Negative-pressure anti-leaking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204456373U CN202349603U (en) | 2011-11-11 | 2011-11-11 | Negative-pressure anti-leaking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202349603U true CN202349603U (en) | 2012-07-25 |
Family
ID=46538610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204456373U Expired - Fee Related CN202349603U (en) | 2011-11-11 | 2011-11-11 | Negative-pressure anti-leaking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202349603U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111457255A (en) * | 2019-11-06 | 2020-07-28 | 张超 | Oil and gas pipeline leakage detection method and device |
-
2011
- 2011-11-11 CN CN2011204456373U patent/CN202349603U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111457255A (en) * | 2019-11-06 | 2020-07-28 | 张超 | Oil and gas pipeline leakage detection 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20191111 |