CN201198748Y - Erosion-proof flange seal well head apparatus of high pressure underground gas storing well - Google Patents
Erosion-proof flange seal well head apparatus of high pressure underground gas storing well Download PDFInfo
- Publication number
- CN201198748Y CN201198748Y CNU2008200627164U CN200820062716U CN201198748Y CN 201198748 Y CN201198748 Y CN 201198748Y CN U2008200627164 U CNU2008200627164 U CN U2008200627164U CN 200820062716 U CN200820062716 U CN 200820062716U CN 201198748 Y CN201198748 Y CN 201198748Y
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- China
- Prior art keywords
- conical surface
- high pressure
- erosion
- flange
- underground gas
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- Expired - Fee Related
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Abstract
The utility model discloses an erosion-proof flange seal well head device for high pressure underground gas storage well, comprising a lower flange (1), an upper flange (2), a conical surface blow-off valve core (4), a tapping valve (5), a conical surface gas intake and outlet valve core (8), a gas intake and outlet valve (9), a pressure gauge (10), a pressure gauge valve (11), a seal steel ring (14), and the ground part of the high pressure underground gas storage well which is formed by a discharging fluid collecting pipe manifold (16). The erosion-proof flange seal well head device is characterized in that the upper flange (2) is provided with a gas intake and outlet channel (13) which is communicated with the conical surface gas intake and outlet valve core (8) and the gas storage well. The erosion-proof flange seal well head device has low maintenance charge, low loss, and good sealability.
Description
Technical field
The utility model relates to the Compressed Natural Gas Technology field, is specifically related to the anti-erosion flange seal wellhead assembly of a kind of high pressure underground gas well.
Background technology
Along with natural gas greatly developing and popularizing as motor vehicle fuel, particularly fuel oil supply at present is more and more tighter, price climbs up and up, the development of CNG (compressed natural gas) gas-fueled vehicles is more and more, how developing a kind of i.e. safety can safeguard again, maintenance, detect, it is convenient to repair, and save the big gas storage mode of space gas storage capability, the underground high-voltage gas storage well is the innovation in many gas storage modes, operation demonstrates it for many years and has unique advantages, also expose simultaneously some incomplete places, can not dismantle as well head, cause by national Specification and will detect underground high-pressure gas storage well in 5 years, safeguard, aspects such as maintenance all can't be carried out, and therefore have potential safety hazard.In addition, because blow-off pipe and air inlet/outlet passage are positioned at the mudhole of upper flange simultaneously, air inlet/outlet impacts blow-off pipe for a long time, the problem that causes the blow-off pipe fracture to drop; Well head joint and the bad problem of last lower flange joint sealing.
The utility model content
The purpose of this utility model is to overcome above-mentioned prior art defective, provide a kind of maintenance cost low, lose little, the high pressure underground gas well of good airproof performance is prevented erosion flange seal wellhead assembly, solve the non-detachable problem of gas storage well upper cover in the underground high-voltage device, having solved the underground high-voltage gas storage well simultaneously for a long time can not flaw detection, the problem of thickness measuring, monitoring, maintenance, maintenance, also solve air inlet/outlet and impacted blow-off pipe for a long time, the problem that causes the blow-off pipe fracture to drop, and solved the well head joint and gone up the bad problem of lower flange joint sealing.
In order to achieve the above object, the utility model has adopted following technical scheme: a kind of high pressure underground gas well is prevented erosion flange seal wellhead assembly, comprise lower flange, upper flange, conical surface blowdown spool, tapping valve, conical surface air valve core, air valve, pressure meter and pressure gauge valve, ring gasket, discharge opeing collection receipts manifold composition high pressure underground gas well above ground portion, have the air inlet/outlet passage on upper flange in addition, described air inlet/outlet passage is connected conical surface air valve core and gas storage well.
Be respectively arranged with withstand voltage O RunddichtringO on the front end of the described conical surface blowdown spool and the conical surface air valve core conical surface.
The inwall place of described lower flange and lower flange and upper flange joint all is provided with elastic sealing device.
The utility model is that the box cupling that will connect upper cover in traditional high pressure underground gas well removes, changing flange of the present utility model into connects, can dismantle at any time like this, monitoring on time, maintenance, maintaining, the requirement that detected once in 5 years of regulation in being up to state standards, can immediately eliminate some potential safety hazards, make the high pressure underground gas well device more safe and reliable, the utility model has solved the non-detachable key issue of high pressure underground gas well device upper cover, simultaneously also having solved the high pressure underground gas well device can not detect a flaw for a long time, thickness measuring, monitoring, maintenance, the problem of maintenance, also having solved the high pressure underground gas well device occurs for a long time revealing and can't repair and have only the situation of doing to scrap processing, save maintenance cost, reduced loss.In order to solve the problem that air inlet/outlet impacts blow-off pipe for a long time, the utility model has been offered independently air inlet/outlet passage in addition on upper flange, blow-off pipe then is positioned at the blowdown channel and is not positioned at same passage with the air inlet/outlet passage, and air inlet/outlet vertically downward, solve the problem that air inlet/outlet impacts blow-off pipe for a long time effectively, reduced loss.The utility model has adopted the two-stage sealing to blowdown spool and air valve core simultaneously, the one, seal by withstand voltage O RunddichtringO, the 2nd, lean on the conical surface of conical surface blowdown spool, conical surface air valve core to seal, solved the leakage problem of high pressure underground gas well device well head joint.In addition, on the inwall of lower flange and lower flange and upper flange joint, all be provided with elastic sealing device, had only steel ring that lower flange and upper flange are sealed in the past, the utility model is to seal simultaneously by steel ring and elastic sealing device, has guaranteed good sealing property.
Description of drawings
Fig. 1 is a structural representation of the present utility model; 6 is pipe nipple, and 9 are turnover balloon valve, and 10 is pressure meter, and 11 is pressure gauge valve, and 12 for connecting pipe nipple, and 17 is sleeve pipe.
Fig. 2 is the E enlarged drawing of Fig. 1, i.e. the conical surface enlarged drawing of conical surface blowdown spool, conical surface air valve core.
The specific embodiment
The structure of the anti-erosion flange seal wellhead assembly of a kind of high pressure underground gas well of the utility model as shown in Figure 1 and Figure 2, mainly receive manifold 16 and form the high pressure underground gas well above ground portion by lower flange 1, upper flange 2, conical surface blowdown spool 4, tapping valve 5, conical surface air valve core 8, air valve 9, pressure meter 10 and pressure gauge valve 11, ring gasket 14, discharge opeing collection, have air inlet/outlet passage 13 on upper flange 2 in addition, described air inlet/outlet passage 13 is connected conical surface air valve core 8 and gas storage well.Conical surface air valve core 8 is installed on the upper flange 2, blow-off pipe 18 is positioned at the mudhole of upper flange 2, have air inlet/outlet passage 13 on the upper flange 2 in addition, make blow-off pipe 18 and air inlet/outlet passage 13 so not in same passage, the air-flow of air inlet/outlet just can not impact blow-off pipe for a long time, guaranteed the application life of blow-off pipe, reduced the loss, reduced expenses.On the conical surface front end of stating conical surface blowdown spool 4 and conical surface air valve core 8, be respectively arranged with withstand voltage O RunddichtringO 3, O RunddichtringO 7.On blowdown spool and the air valve core O RunddichtringO being set, is to realize the two-stage sealing by its conical surface and O RunddichtringO.Inwall place at lower flange 1 and lower flange 1 and upper flange 2 joints all is provided with elastic sealing device 13.The utility model all is provided with elastic sealing device 13 at the inwall place of lower flange 1 and the inwall place of upper flange 2 joints, realizes sealing by elastic sealing device and steel ring 14, has guaranteed good sealing property.
Claims (3)
1. a high pressure underground gas well is prevented erosion flange seal wellhead assembly, comprise lower flange (1), upper flange (2), conical surface blowdown spool (4), tapping valve (5), conical surface air valve core (8), air valve (9), pressure meter (10) and pressure gauge valve (11), ring gasket (14), discharge opeing collection receipts manifolds (16) composition high pressure underground gas well above ground portion, it is characterized in that: have air inlet/outlet passage (13) on upper flange (2) in addition, described air inlet/outlet passage (13) is connected conical surface air valve core (8) and gas storage well.
2. according to the anti-erosion flange seal wellhead assembly of the described high pressure underground gas well of claim 1, it is characterized in that: be respectively arranged with withstand voltage O RunddichtringO (3,7) on the conical surface front end of described conical surface blowdown spool (4) and conical surface air valve core (8).
3. according to the anti-erosion flange seal wellhead assembly of the described high pressure underground gas well of claim 1, it is characterized in that: the inwall place of described lower flange (1) and lower flange (1) and upper flange (2) joint all is provided with elastic sealing device (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200627164U CN201198748Y (en) | 2008-03-28 | 2008-03-28 | Erosion-proof flange seal well head apparatus of high pressure underground gas storing well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200627164U CN201198748Y (en) | 2008-03-28 | 2008-03-28 | Erosion-proof flange seal well head apparatus of high pressure underground gas storing well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201198748Y true CN201198748Y (en) | 2009-02-25 |
Family
ID=40449904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200627164U Expired - Fee Related CN201198748Y (en) | 2008-03-28 | 2008-03-28 | Erosion-proof flange seal well head apparatus of high pressure underground gas storing well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201198748Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936144A (en) * | 2010-09-13 | 2011-01-05 | 中国海洋石油总公司 | Uphole pressure-bearing protective device |
| CN102287599A (en) * | 2010-06-18 | 2011-12-21 | 西安轨道交通装备有限责任公司 | Flange connection sealing device |
-
2008
- 2008-03-28 CN CNU2008200627164U patent/CN201198748Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287599A (en) * | 2010-06-18 | 2011-12-21 | 西安轨道交通装备有限责任公司 | Flange connection sealing device |
| CN101936144A (en) * | 2010-09-13 | 2011-01-05 | 中国海洋石油总公司 | Uphole pressure-bearing protective device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090225 Termination date: 20100328 |