CN202007995U - Plug type well mouth connector for underground gas storage well - Google Patents
Plug type well mouth connector for underground gas storage well Download PDFInfo
- Publication number
- CN202007995U CN202007995U CN2011200533510U CN201120053351U CN202007995U CN 202007995 U CN202007995 U CN 202007995U CN 2011200533510 U CN2011200533510 U CN 2011200533510U CN 201120053351 U CN201120053351 U CN 201120053351U CN 202007995 U CN202007995 U CN 202007995U
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- well
- sealing
- fuel gas
- plug type
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Abstract
The utility model discloses a plug type well mouth connector for an underground gas storage well, which comprises a cylindrical body, a plug type connecting sealing head, sealing rings and threaded fasteners, wherein the lower portion of the cylindrical body is provided with conical tube threads, the upper portion of the cylindrical body is provided with fastening threads, and the plug type connecting sealing head is provided with a sealing groove, a liquid discharging outlet, a fuel gas inlet and a fuel gas outlet. The plug type well mouth connector utilizes a thickened cylindrical connecting tube as a body of the connector, the lower end of the cylindrical connecting tube is directly connected with a gas storage well mouth in a fastened and sealed mode by the aid of the conical tube threads, the upper portion of the cylindrical connecting tube is connected with the plug type connecting sealing head with the liquid discharging outlet, the fuel gas inlet and the fuel gas outlet in a sealed and fastened mode by the aid of the sealing rings and threaded fasteners. The plug type well mouth connector has the advantages of simple and compact structure, fine integrality, convenience in detachment, easiness for heat preservation, heating and anti-corrosion treatment to the connector in daily use, safety and reliability in use, long service life, convenience in detection and maintenance for the gas storage well and the like.
Description
Technical field
The utility model belongs to high pressure underground gas well well head coupling arrangement, particularly a kind of well for storage usefulness plug formula well head coupling head of adopting the cylindrical shape connecting tube as the coupling head body.Adopt both easy disassembly and wellhead assembly implemented insulation, heating and preservative treatment of this coupling head, be convenient to again to gas storage well detect, maintenance etc.
Background technique
At present, in CNG (compressed natural gas) supply station and gas peak regulation station, the wellhead assembly that the device that connects as the high pressure underground gas well well head still generally adopts the flange plate of metal (steel) circle sealing to connect.The patent No. is that ZL2005200365219, denomination of invention promptly belong to this type of well head coupling arrangement for the disclosed technology of patent documentation of " coupling head of well for storage well head "; This coupling head comprises that the bottom is provided with the flange of bolt hole and seal groove, and top is for being with the flange-type sealing head of liquid port and fuel gas inlet/outlet and seal groove, bolt hole, metal o-ring; Upper and lower two-part of coupling head (body) use when installing then by pit shaft joint sleeve and the fastening one that is connected into of well head sealing by bolt group and metal o-ring and the fastening one that is connected into of upper and lower flange head sealed type.Such flange coupling arrangement in use ruptures from this because of variation repeatedly, the coupling head of pressure easily owing to have a structural mutation, generation stress to concentrate at flange plate and its neck; And because this coupling head bolt is many, the dismounting trouble, bolt also easily causes the well head coupling head to produce leakage because of fatigue is loosening, or because of the pretightening force of each bolt is difficult to the fracture that bolt takes place in equilibrium, the reliability that influences its sealing, and adopt the soft metal sealing also to be unfavorable for repeated disassembled and assembled; In addition because complex structure, regular (compactness) property of above-mentioned traditional well head coupling head are poor, be difficult for to coupling head itself be incubated, heating and preservative treatment, also be not easy to gas storage well detect, defective such as maintenance.
Summary of the invention
The purpose of this utility model is the defective that exists at background technique, improves the plug formula well head coupling head of a kind of well for storage of design; To simplify its structure and loading and unloading capacity, reliability in intensity, corrosion resistance, sealing and the using process of effective raising coupling head, reach simple and compact for structure, easy to loading and unloading, in the daily use easily to coupling head itself be incubated, heating and preservative treatment, safe and reliable and can effectively prolong its working life, and be convenient to gas storage well detect, purpose such as maintenance.
Solution of the present utility model be connection (four-way) head that tradition is provided with liquid port and fuel gas inlet/outlet with bottom (close) end socket between adopt flange plate to connect, between two flange plate, adopt steel ring to seal, the coupling head body that (close) end socket bottom employing taper pipe thread connects with the well for storage well head; Change into adopt the connecting tube of integrated type tubular as the coupling head body and with the coupling head of original tape liquid port and fuel gas inlet/outlet change into not only as connect, but also as the plug formula connection sealing head that seals, this plug formula connects between sealing head and the coupling head body by seal ring and threaded fastener, the fastening one that is connected into of sealing, and the bottom of tubular connecting tube (body) still connects with the well for storage well head by taper pipe thread.Promptly in the well head coupling head, adopt a tubular connecting tube that thickens to adopt taper pipe thread directly to connect with gas storage well well head fit sealing as the body of this coupling head, the lower end of tubular connecting tube, so that coupling head itself and coupling head and well head point of attachment are carried out preservative treatment, the intensity and the antiseptic power of raising pit shaft and well head connecting tube point of attachment and coupling head itself; The top of tubular connecting tube is with the band liquid port and connecting of fuel gas inlet/outlet then adopt seal ring and threaded fastener to seal fastening connection between the sealing head; Thereby realize its goal of the invention.Thereby the utility model well for storage comprises well head coupling head body with the coupling head of plug formula well head, is provided with the coupling head of liquid port and fuel gas inlet/outlet, sealing head, seal ring and fastening piece; Key is that the coupling head body is that the bottom is provided with the cylinder body that taper pipe thread, top are provided with binding thread, coupling head and sealing head then connect sealing head for the plug formula that is provided with seal groove, liquid port and fuel gas inlet/outlet, liquid port on this connection sealing head and fuel gas inlet/outlet all axially are located at the top that connects sealing head, and seal ring then is located in the seal groove that connects sealing head; Connect sealing head and cylinder body top and be tightened to one by threaded fastener and seal ring sealing.
The long 300-8000mm of above-mentioned cylinder body, the thick 20-30mm of barrel, top binding thread are metric thread or (directly) pipe thread.Described plug formula connects the top axle of sealing head to a liquid port and 1-2 fuel gas inlet/outlet are set.And described threaded fastener is countersunk head formula bolt or nut (cap).
The utility model is because the tubular connecting tube that employing thickens adopts taper pipe thread directly to connect with gas storage well well head fit sealing as the body of well head coupling head, the lower end of tubular connecting tube, so that well head coupling head body is carried out the intensity and the antiseptic power of preservative treatment, raising pit shaft and well head coupling head point of attachment; The top of tubular connecting tube is with the band liquid port and connecting of fuel gas inlet/outlet then adopt seal ring and threaded fastener to seal fastening connection between the sealing head.Thereby have simple and compact for structure, good integrity, easy to loading and unloading, in the daily use easily to coupling head itself be incubated, heating and preservative treatment, safe and reliable and long service life, and be convenient to gas storage well detect, characteristics such as maintenance.
Description of drawings
Fig. 1 is the utility model structure and embodiment's 1 schematic representation;
Fig. 2 is the utility model embodiment 2 structural representations.
Among the figure: 1. cylinder body, 2. the plug formula connects sealing head, 2-1. fuel gas inlet/outlet, 2-2. liquid port, 3. threaded fastener, 4. seal ring; 5. well head backing plate, 6. top layer conduit, 7. pit shaft body.
Embodiment
With with CNG gas station and hot gas peak regulation station, cities and towns, gas distribution station is supporting with gas storage well is example with the well head coupling head: pit shaft body 6 diameter of phi 244.5mm (95/8 " pipe), gas storage pressure is 25Mpa.
Embodiment 1: the plug formula well head coupling head of making fastening piece with countersunk head formula bolt is an example, cylinder body 1 axial long 350mm, internal diameter Φ 216mm, external diameter Φ 270mm, screw thread on the inner cylindrical surface of cylindrical shell top be M235 * 3, thread spindle to long 52mm, lower taper pipe thread and pit shaft body 6 conventional supporting taper pipe threads with joint sleeves are identical; The plug formula connects sealing head 2 axial long 165mm, top external diameter Φ 139mm, the bottom cooperate with cylinder body 1 and be with the seal groove position external diameter Φ 224mm, establish 3 rows on it and directly be the seal groove of Φ 216mm, wide 6.5mm in the end, direct-axis is to being provided with a liquid port and a fuel gas inlet/outlet on this connection sealing head for present embodiment, and the structure of a liquid port 2-2 and a fuel gas inlet/outlet 2-1 and background technique are together; Threaded fastener 3 present embodiments adopt countersunk head formula bolt, are M235 * 3 screw threads on axially long 90mm, internal diameter Φ 140mm, the external cylindrical surface, and the hexagon head of axial long 30mm is established on top; Seal ring 4 models are " O " shape seal ring of Φ 225 * 5.0mm; All the other well head backing plates 5, top layer conduit 6 are that the well for storage of 25Mpa is identical with conventional well cylindrical shell 7 diameter of phi 244.5mm (95/8 " pipe), gas storage pressure all also.
Embodiment 2: the plug formula well head coupling head of making fastening piece with nut (cap) is an example, cylinder body 1 length 5000mm, inside and outside footpath and lower taper pipe thread are all identical with embodiment 1, establish the axially long 85mm of screw thread, helical thread portion of M260 * 4 on the external cylindrical surface of top, present embodiment top and the axially long 60mm of inner ring surface diameter of phi 225mm, this anchor ring that connects sealing head 2 cooperation places; Structure, size that the plug formula connects sealing head 2 are all identical with embodiment 1; Threaded fastener 3 present embodiments adopt the nut of band center hole as the fastening piece between cylinder body 1 and the plug formula connection sealing head 2, this nut external diameter Φ 320mm, high 142mm, the internal thread on it also are M260 * 4, and the hexagon head of axial long 30mm is established on center-hole diameter Φ 140mm, top; Seal ring 4 and all the other parts are all identical with embodiment 1.
Claims (4)
1. a well for storage comprises well head coupling head body with the coupling head of plug formula well head, is provided with the coupling head of liquid port and fuel gas inlet/outlet, sealing head, seal ring and fastening piece; It is characterized in that the coupling head body is that the bottom is provided with the cylinder body that taper pipe thread, top are provided with binding thread, coupling head and sealing head then connect sealing head for the plug formula that is provided with seal groove, liquid port and fuel gas inlet/outlet, liquid port on this connection sealing head and fuel gas inlet/outlet all axially are located at the top that connects sealing head, and seal ring then is located in the seal groove that connects sealing head; Connect sealing head and cylinder body top and be tightened to one by threaded fastener and seal ring sealing.
2. by the plug formula well head coupling head of the described well for storage of claim 1, it is characterized in that the long 300-8000mm of described cylinder body, the thick 20-30mm of barrel, top binding thread are metric thread or pipe thread.
3. by the plug formula well head coupling head of the described well for storage of claim 1, it is characterized in that described plug formula connects the top axle of sealing head to a liquid port and 1-2 fuel gas inlet/outlet are set.
4. by the plug formula well head coupling head of the described well for storage of claim 1, it is characterized in that described threaded fastener is countersunk head formula bolt or nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200533510U CN202007995U (en) | 2011-03-01 | 2011-03-01 | Plug type well mouth connector for underground gas storage well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200533510U CN202007995U (en) | 2011-03-01 | 2011-03-01 | Plug type well mouth connector for underground gas storage well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202007995U true CN202007995U (en) | 2011-10-12 |
Family
ID=44749653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200533510U Expired - Fee Related CN202007995U (en) | 2011-03-01 | 2011-03-01 | Plug type well mouth connector for underground gas storage well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202007995U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591451A (en) * | 2013-11-19 | 2014-02-19 | 四川川油天然气科技发展有限公司 | Large-diameter gas storage well |
-
2011
- 2011-03-01 CN CN2011200533510U patent/CN202007995U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591451A (en) * | 2013-11-19 | 2014-02-19 | 四川川油天然气科技发展有限公司 | Large-diameter gas storage well |
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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: 20111012 Termination date: 20170301 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |