CN202946921U - Wellhead device for high-pressure gas underground gas storage well - Google Patents
Wellhead device for high-pressure gas underground gas storage well Download PDFInfo
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- CN202946921U CN202946921U CN 201220612259 CN201220612259U CN202946921U CN 202946921 U CN202946921 U CN 202946921U CN 201220612259 CN201220612259 CN 201220612259 CN 201220612259 U CN201220612259 U CN 201220612259U CN 202946921 U CN202946921 U CN 202946921U
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- packing ring
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- metallic packing
- flange gland
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Abstract
The utility model relates to the technical field of wellhead devices for underground gas storage wells, in particular to a wellhead device for a high-pressure gas underground gas storage well. The wellhead device comprises a sleeve head body, a flange gland and a double-core shaft; the sleeve head body is fixedly connected together with the flange gland through a fastening device; a step hole of which the upper part is wide and the lower part is narrow is formed in the sleeve head body; the double-core shaft is sleeved in the upper part of the step hole; an air inlet pipe and an exhaust pipe communicated with double shaft holes of the double-core shaft are arranged on the flange gland; an upper sealing device is fixedly arranged between the step hole above the double-core shaft and the flange gland through a fastening device; and through holes communicated with the double shaft holes of the double-core shaft, the air inlet pipe and the exhaust pipe are formed on the upper sealing device. The wellhead device is reasonable and compact in structure and convenient to use, can well seal the wellhead of the high-pressure gas underground well, and has the characteristics of convenience in detachment, high temperature resistance, high pressure resistance, high corrosion resistance, high safety and reliability, small area occupation and low maintenance cost.
Description
Technical field
The utility model relates to well for storage wellhead assembly technical field, is a kind of well for storage of high pressure gas wellhead assembly.
Background technique
The underground high-voltage gas storage well is suitable for compressed, and well for storage has higher requirement to the sealing of underground each link of gas storage well wellhead assembly, heatproof, withstand voltage, decay resistance, and the well for storage wellhead assembly that existing underground high-voltage gas storage well adopts has the following disadvantages in actual use: sealability is not good, resistance to high temperature is not good, high voltage performance is not good, decay resistance is not good, safety reliability is not good.
Summary of the invention
The utility model provides a kind of well for storage of high pressure gas wellhead assembly, overcome the deficiency of above-mentioned prior art, it can effectively solve the problem that sealability is not good, heat resistance is not good, withstand voltage properties is not good, decay resistance is not good that existing well for storage wellhead assembly exists.
The technical solution of the utility model realizes by following measures: a kind of well for storage of high pressure gas wellhead assembly comprises casing head body, flange gland and twin-core axle; Casing head body and flange gland are fixed together by securing means, the narrow step hole in wide bottom, top is arranged in the casing head body, be set with the twin-core axle in the top of step hole, on the twin-core axle, Double-shaft-and-hole is arranged, the suction tude and the outlet pipe that communicate with the Double-shaft-and-hole of twin-core axle are arranged on the flange gland, be installed with upper sealing device by securing means between the step hole above the twin-core axle and flange gland, the through hole that communicates with Double-shaft-and-hole, suction tude and the outlet pipe of twin-core axle is respectively arranged on upper sealing device; Lower outside at the twin-core axle has annular groove, is set with lower sealing device in annular groove.
The below is the further optimization and/or improvements to above-mentioned model utility technological scheme:
Above-mentioned upper sealing device can comprise regulates pressing plate, pressing plate and rubber plate; The groove corresponding with the aperture, top of step hole arranged in the bottom of flange gland, top and inside grooves at step hole are installed with adjusting pressing plate, pressing plate and rubber plate by securing means from top to bottom, and regulating on pressing plate, pressing plate and rubber plate has respectively through hole.
Above-mentioned lower sealing device can comprise metallic packing ring and lower metallic packing ring; The cone table shape that upper metallic packing ring is big up and small down, lower metallic packing ring is up-small and down-big cone table shape; The outside of upper metallic packing ring has outer carves face, carves face in the inboard of lower metallic packing ring has, and upper metallic packing ring outer carved face and held out against in lower metallic packing ring by securing means and carve on face.
Above-mentioned securing means can comprise double threaded screw and nut; Casing head body and flange gland are fixed together by double threaded screw and nut.
The outer middle side part of above-mentioned twin-core axle can have at least one seal groove, and seal groove is equipped with seal ring.
Can there be up big and down small lower concave station the both sides, center, upper end of above-mentioned casing head body; The up big and down small upper concave station that matches with lower concave station is arranged in the both sides, center, lower end of flange gland, and lower concave station and upper concave station its cross section that matches is wide at the top and narrow at the bottom trapezoidal, is installed with sealing steel rings in lower concave station and upper concave station.
The utility model reasonable and compact in structure, easy to use, it is sealed high pressure gas missile silo well head better, its have be convenient to dismantle, heat resistance is high, withstand voltage properties is high, decay resistance is high, safety reliability is high, floor space is little, maintenance cost is low characteristics.
Description of drawings
Accompanying drawing 1 is looked the sectional structure schematic diagram for the master of the utility model most preferred embodiment.
Accompanying drawing 2 is the sectional structure schematic diagram of twin-core axle.
Accompanying drawing 3 is for regulating the sectional structure schematic diagram of pressing plate.
Accompanying drawing 4 is the sectional structure schematic diagram of pressing plate.
Accompanying drawing 5 is the sectional structure schematic diagram of sheet rubber.
Accompanying drawing 6 is the sectional structure schematic diagram of upper metallic packing ring.
Accompanying drawing 7 is the sectional structure schematic diagram of lower metallic packing ring.
Accompanying drawing 8 is the main TV structure schematic diagram of double threaded screw.
Coding in accompanying drawing is respectively: 1 is the casing head body, and 2 is the flange gland, and 3 is the twin-core axle, and 4 is double threaded screw, 5 is nut, and 6 is step hole, and 7 is suction tude, and 8 is outlet pipe, 9 is Double-shaft-and-hole, and 10 is through hole, and 11 is annular groove, and 12 for regulating pressing plate, 13 is pressing plate, and 14 is rubber plate, and 15 is groove, and 16 is upper metallic packing ring, 17 is lower metallic packing ring, and 18 for carving face outward, and 19 carve face in being, 20 is seal groove, 21 is seal ring, and 22 is lower concave station, and 23 is upper concave station, and 24 is sealing steel rings.
Embodiment
The utility model is not subjected to following embodiment's restriction, can determine concrete mode of execution according to the technical solution of the utility model and actual conditions.
In the utility model, for convenience of description, the description of the relative position relation of each parts is all that the Butut mode according to Figure of description 1 is described, as: the position relationship of forward and backward, upper and lower, left and right etc. is to determine according to the Butut direction of Figure of description 1.
Below in conjunction with embodiment and accompanying drawing, the utility model is further described:
As shown in accompanying drawing 1,2, this well for storage of high pressure gas wellhead assembly comprises casing head body 1, flange gland 2 and twin-core axle 3; Casing head body 1 is fixed together by securing means with flange gland 2, the narrow step hole 6 in wide bottom, top is arranged in casing head body 1, be set with twin-core axle 3 in the top of step hole 6, Double-shaft-and-hole 9 is arranged on twin-core axle 3, the suction tude 7 and the outlet pipe 8 that communicate with the Double-shaft-and-hole 9 of twin-core axle 3 are arranged on flange gland 2, be installed with upper sealing device by securing means between the step hole 6 above twin-core axle 3 and flange gland 2, the through hole 10 that communicates with Double-shaft-and-hole 9, suction tude 7 and the outlet pipe 8 of twin-core axle 3 is respectively arranged on upper sealing device; Lower outside at twin-core axle 3 has annular groove 11, is set with lower sealing device in annular groove 11.The setting of securing means, upper sealing device and lower sealing device can improve sealing effect of the present utility model.
Can according to actual needs, above-mentioned well for storage of high pressure gas wellhead assembly be made further optimization and/or improvements:
As shown in accompanying drawing 1,3,4,5, upper sealing device comprises regulates pressing plate 12, pressing plate 13 and rubber plate 14; The groove corresponding with the aperture, top of step hole 6 15 arranged in the bottom of flange gland 2, on the top of step hole 6 and groove 15 inside be installed with by securing means from top to bottom and regulate pressing plate 12, pressing plate 13 and rubber plate 14, regulating on pressing plate 12, pressing plate 13 and rubber plate 14 has respectively through hole 10.Regulate the direction that pressing plate 12, pressing plate 13 and rubber plate 14 can mutually transmit power and can control the sealing amount of deformation, pressing plate 13 can be regulated pressing plate 13 with the structure of regulating pressing plate 12 by sealed rubber plate 14 simultaneously, and the mutually collaborative seal action of regulating pressing plate 12, pressing plate 13 and rubber plate 14 can reach secondary seal.
As shown in accompanying drawing 1,6,7, lower sealing device comprises metallic packing ring 16 and lower metallic packing ring 17; The big up and small down cone table shape of upper metallic packing ring 16, lower metallic packing ring 17 is up-small and down-big cone table shape; The outside of upper metallic packing ring 16 has outer carves face 18, carves face 19 in the inboard of lower metallic packing ring 17 has, and upper metallic packing ring 16 outer carved face 18 and held out against in lower metallic packing ring 17 by securing means and carve on face 19.Upper metallic packing ring 16 and lower metallic packing ring 17 have the high pressure of bearing, life-span length, seal characteristics reliably, carve the setting of carving face 19 in face 18 and lower metallic packing ring 17 outside upper metallic packing ring 16 and can improve sealing effect; Upper metallic packing ring 16 and lower metallic packing ring 17 are preferably the soft metal, and upper metallic packing ring 16 and lower metallic packing ring 17 selections are three No. ten steel, and the lower sealing device sealing effect can reach primary seal.
As shown in accompanying drawing 1,8, securing means comprises double threaded screw 4 and nut 5; Casing head body 1 is fixed together by double threaded screw 4 and nut 5 with flange gland 2.
As shown in accompanying drawing 1,2, the outer middle side part of twin-core axle 3 has at least one seal groove 20, and seal groove 20 is equipped with seal ring 21.The interior rubber seal 21 of preferably installing of seal groove 20, it can play the effect of auxiliary seal.
As shown in Figure 1, there is up big and down small lower concave station 22 both sides, center, upper end of casing head body 1; The up big and down small upper concave station 23 that matches with lower concave station 22 is arranged in the both sides, center, lower end of flange gland 2, and lower concave station 22 and upper concave station 23 its cross section that matches is wide at the top and narrow at the bottom trapezoidal, is installed with sealing steel rings 24 in lower concave station 22 and upper concave station 23.The installation of sealing steel rings 24 further improves sealability of the present utility model.
Above technical characteristics has consisted of most preferred embodiment of the present utility model, and it has stronger adaptability and best implementation result, can increase and decrease according to actual needs non-essential technical characteristics, satisfies the demand of different situations.
the using process of the utility model most preferred embodiment: the first step, casing head body 1 and well head are fixedly installed togather, then gas storage well outlet pipe 8 and suction tude 7 are lowered at the bottom of the gas storage well 15 meters, second step, after well head is fixing, enter well pipeline annular space and place lower metallic packing ring 17 to casing head body 1 step hole 6, centering is put into metallic packing ring 16 on lower metallic packing ring 17, and the seal groove on twin-core axle 3 20 is installed seal ring 21, according to concentric principle, outlet pipe 8 lines at twin-core axle 3 are picked into the interior suspension of casing head body 1 by connecing landing.The 3rd step, to remove landing and connect, the Double-shaft-and-hole 9 in twin-core axle 3 is shorted together and installs successively rubber plate 14, pressing plate 13 and regulate pressing plate 12 with well external admission pipe 7 lines and outlet pipe 8 lines; The 4th step, at lower concave station 22 and 23 fixed installation sealing steel ringss 24 of upper concave station, then flange gland 2 and casing head body 1 are fixed together respectively fastening nut 5 by double threaded screw 4 and nut 5, adjust the gap of flange gland 2 and casing head body 1, carry out at last pressure testing.
Claims (6)
1. a well for storage of high pressure gas wellhead assembly, is characterized in that comprising casing head body, flange gland and twin-core axle; Casing head body and flange gland are fixed together by securing means, the narrow step hole in wide bottom, top is arranged in the casing head body, be set with the twin-core axle in the top of step hole, on the twin-core axle, Double-shaft-and-hole is arranged, the suction tude and the outlet pipe that communicate with the Double-shaft-and-hole of twin-core axle are arranged on the flange gland, be installed with upper sealing device by securing means between the step hole above the twin-core axle and flange gland, the through hole that communicates with Double-shaft-and-hole, suction tude and the outlet pipe of twin-core axle is respectively arranged on upper sealing device; Lower outside at the twin-core axle has annular groove, is set with lower sealing device in annular groove.
2. well for storage of high pressure gas wellhead assembly according to claim 1, is characterized in that upper sealing device comprises adjusting pressing plate, pressing plate and rubber plate; The groove corresponding with the aperture, top of step hole arranged in the bottom of flange gland, top and inside grooves at step hole are installed with adjusting pressing plate, pressing plate and rubber plate by securing means from top to bottom, and regulating on pressing plate, pressing plate and rubber plate has respectively through hole.
3. well for storage of high pressure gas wellhead assembly according to claim 1 and 2, is characterized in that lower sealing device comprises metallic packing ring and lower metallic packing ring; The cone table shape that upper metallic packing ring is big up and small down, lower metallic packing ring is up-small and down-big cone table shape; The outside of upper metallic packing ring has outer carves face, carves face in the inboard of lower metallic packing ring has, and upper metallic packing ring outer carved face and held out against in lower metallic packing ring by securing means and carve on face.
4. well for storage of high pressure gas wellhead assembly according to claim 1, is characterized in that securing means comprises double threaded screw and nut; Casing head body and flange gland are fixed together by double threaded screw and nut.
5. well for storage of high pressure gas wellhead assembly according to claim 1 and 2, is characterized in that the outer middle side part of twin-core axle has at least one seal groove, and seal groove is equipped with seal ring.
6. according to claim 1 or 4 described well for storage of high pressure gas wellhead assemblies, is characterized in that there is up big and down small lower concave station the both sides, center, upper end of casing head body; The up big and down small upper concave station that matches with lower concave station is arranged in the both sides, center, lower end of flange gland, and lower concave station and upper concave station its cross section that matches is wide at the top and narrow at the bottom trapezoidal, is installed with sealing steel rings in lower concave station and upper concave station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220612259 CN202946921U (en) | 2012-11-19 | 2012-11-19 | Wellhead device for high-pressure gas underground gas storage well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220612259 CN202946921U (en) | 2012-11-19 | 2012-11-19 | Wellhead device for high-pressure gas underground gas storage well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202946921U true CN202946921U (en) | 2013-05-22 |
Family
ID=48422623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220612259 Expired - Fee Related CN202946921U (en) | 2012-11-19 | 2012-11-19 | Wellhead device for high-pressure gas underground gas storage well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202946921U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105905512A (en) * | 2016-06-30 | 2016-08-31 | 中国电建集团中南勘测设计研究院有限公司 | Underground cavern gas storage structure for energy storing power station |
-
2012
- 2012-11-19 CN CN 201220612259 patent/CN202946921U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105905512A (en) * | 2016-06-30 | 2016-08-31 | 中国电建集团中南勘测设计研究院有限公司 | Underground cavern gas storage structure for energy storing power station |
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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: 20130522 Termination date: 20201119 |