CN211115899U - Gas storage well wellhead assembly that leakproofness is strong - Google Patents

Gas storage well wellhead assembly that leakproofness is strong Download PDF

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Publication number
CN211115899U
CN211115899U CN201922239341.5U CN201922239341U CN211115899U CN 211115899 U CN211115899 U CN 211115899U CN 201922239341 U CN201922239341 U CN 201922239341U CN 211115899 U CN211115899 U CN 211115899U
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China
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sealing
gas storage
flange
sealing washer
well
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CN201922239341.5U
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Chinese (zh)
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陈立峰
陈玮晟
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Sichuan Oil Natural Gas Technology Co ltd
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Sichuan Oil Natural Gas Technology Co ltd
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Abstract

The utility model provides a gas storage well wellhead assembly that leakproofness is strong relates to gas storage well technical field. At present, the underground gas storage well has higher requirements on the sealing property of the wellhead of the underground gas storage well, and at present, the wellhead sealing property of the existing gas storage well is poor and needs to be improved. The utility model discloses a locate the well head flange on the gas storage well body, be equipped with the flange pressure disk on the well head flange, be equipped with first sealing washer and second sealing washer on the flange pressure disk, the cross section of first sealing washer is the wave, it includes that multilayer interconnect and cross section are circle or oval ring, the cross section of second sealing washer is the zigzag, it is equipped with first seal groove and the second seal groove with first sealing washer and second seal ring shape complex to correspond on the well head flange, the side of sealing washer is wave and zigzag, the sealing performance of reinforcing sealing washer, make the area of contact of well head flange and flange pressure disk increase, the leakproofness between reinforcing well head flange and the flange pressure disk.

Description

Gas storage well wellhead assembly that leakproofness is strong
Technical Field
Relate to gas storage well technical field, concretely relates to gas storage well wellhead assembly that leakproofness is strong.
Background
The storage of natural gas generally adopts high pressure device ground to store and store two kinds of modes with underground, and ground is stored because all adopt high-pressure vessel, uses the land in city, and safety, fire control etc. will all cause certain influence, and the mode of underground gas storage well carries out high-pressure storage, this problem of solution that can be better.
At present, natural gas energy construction is greatly promoted in various places, the policy of reducing environmental pollution is met, CNG (compressed natural gas) peak regulation stations such as CNG gas stations and factories are built, high-pressure underground gas storage wells are the first choice of a plurality of gas storage modes, the underground gas storage wells have higher requirements for the sealing performance of the well mouths of the underground gas storage wells, and at present, the sealing performance of the well mouths of the existing gas storage wells is poor and needs to be improved.
Disclosure of Invention
The utility model aims at developing a gas storage well wellhead assembly that leakproofness of reinforcing gas storage well wellhead leakproofness is strong.
The utility model discloses a following technical scheme realizes:
Gas storage well wellhead assembly that leakproofness is strong, including locating the well head flange on the gas storage well body, be equipped with the flange pressure disk on the well head flange, be equipped with first sealing washer and second sealing washer on the flange pressure disk, the cross section of first sealing washer is the wave, and it includes that multilayer interconnect and cross section are circle or oval ring, the cross section of second sealing washer is the zigzag, correspond on the well head flange be equipped with first sealing washer and second sealing washer shape complex first seal groove and second seal groove, the side of sealing washer is wave and zigzag, strengthens the sealing performance of sealing washer, makes the area of contact of well head flange and flange pressure disk increase, strengthens the leakproofness between well head flange and the flange pressure disk.
Furthermore, the connecting line of the centers of the cross sections of the multiple layers of circular rings is vertical or parallel to the flange pressing plate.
Furthermore, the first sealing ring comprises three layers of connected rings which are arranged concentrically.
Furthermore, the shape of the first sealing groove is the same as that of the first sealing ring, and the first sealing ring is located in the first sealing groove.
Further, the first sealing ring is made of rubber.
Furthermore, the cross section of the second sealing ring is composed of a plurality of identical isosceles triangles.
Furthermore, the shape of the second sealing groove is the same as that of the first sealing ring, and the second sealing groove is meshed with the second sealing ring.
The utility model has the advantages that:
The utility model discloses be provided with two-layer special sealing washer, the side of sealing washer is the wave, strengthens the sealing performance of sealing washer, makes the area of contact of well head flange and flange pressure disk increase, strengthens the leakproofness between well head flange and the flange pressure disk.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a view of the structure of the present invention;
FIG. 2 is a right side view of FIG. 1;
Fig. 3 is an enlarged view of a portion a in fig. 1.
Detailed Description
In the following, only certain exemplary embodiments are briefly described. As those skilled in the art can appreciate, the described embodiments may be modified in various different ways, without departing from the spirit or scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present invention.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1~3, this embodiment discloses a gas storage well wellhead assembly that leakproofness is strong, including locating 4 open-top's of gas storage well body wellhead flange 2, be equipped with flange pressure disk 1 on wellhead flange 2, be equipped with sealing device on the flange pressure disk 1, sealing device increases the leakproofness between flange pressure disk 1 and wellhead flange 2, and flange pressure disk 1 is fixed on wellhead flange 2 by gland 3.
The appearance of flange pressure disk 1 is circular, flange pressure disk 1 center is equipped with the shaft hole, locates sealing device on the flange pressure disk 1 includes first sealing washer 10, the shape of first sealing washer 10 is ring shape, first sealing washer 10 is established on flange pressure disk 1 and is close to well head flange 2 one side, and the diameter of first sealing washer 10 is less than the diameter of flange pressure disk 1, first sealing washer 10 and flange pressure disk 1 are concentric, and first sealing washer 10 comprises three layer construction and the same circle pad of size, the cross section of circle pad is circular, and the cross section of three-layer circle pad is tangent, and the line in the circle center of the cross section of three-layer circle pad is perpendicular to flange pressure disk 1, and above-mentioned structure makes two sides of first sealing washer 10 all wave, correspond on well head flange 2 to be equipped with the first seal groove 20 the same with first sealing washer 10 shape structure, after the flange pressure plate 1 is installed on the wellhead flange 2, the first sealing ring 10 is located in the first sealing groove 20, the first sealing ring 10 is in close contact with the first sealing groove 20, and the first sealing ring 10 is preferably made of a material with certain elasticity, and may be a rubber product.
Sealing device is still including locating second sealing washer 11 on the flange pressure disk 1, second sealing washer 11 is established and is close to well head flange 2 one side at flange pressure disk 1, and the shape of second sealing washer 11 is ring shape, second sealing washer 11 and flange pressure disk 1 are concentric, the diameter of second sealing washer 11 with flange pressure disk 1's diameter equals, the cross section of second sealing washer 11 also is the wave, specifically, the cross section of this embodiment second sealing washer 11 is the zigzag, the shape of the cross section of second sealing washer 11 is a plurality of shape and the same and interconnect's isosceles triangle and constitutes, corresponds on well head flange 2 to be equipped with the second seal groove 21 the same with 11 shape structure of second sealing washer, and second sealing washer 11 meshes with second seal groove 21, reaches sealed effect.
Flange pressure disk 1 is kept away from 2 one sides of well head flange and is equipped with gland 3, gland 3 includes pressure disk 30 and snap ring 31, the diameter of pressure disk 30 is greater than flange pressure disk 1's diameter, and snap ring 31 is the ring structure, snap ring 31 and pressure disk 30 fixed connection to snap ring 31 is coaxial with pressure disk 30, and the diameter of snap ring 31 is the same with flange pressure disk 1's diameter, and when gland 3 pressed on flange pressure disk 1, snap ring 31 card was on flange pressure disk 1, and the part that pressure disk 30 stretched out flange pressure disk 1 is equipped with the hole, through hole, pressure disk 30 and well head flange 2 bolted connection.
The flange pressure plate 1 is arranged in the wellhead flange 2, the first sealing ring 10 is arranged in the first sealing groove 20, the second sealing ring 11 is meshed with the second sealing groove 21, the gland 3 is arranged in and fixed on the wellhead flange 2, the first sealing ring 10 and the second sealing ring 11 on the flange pressure plate 1 increase the contact area with the wellhead flange 2, the contact area between the sealing parts is increased, and the sealing performance is further increased.
The above-mentioned embodiment is only the preferred embodiment of the present invention, and is not to the limitation of the technical solution of the present invention, as long as the technical solution can be realized on the basis of the above-mentioned embodiment without creative work, all should be regarded as falling into the protection scope of the right of the present invention.

Claims (7)

1. Gas storage well wellhead assembly that leakproofness is strong, its characterized in that: including locating the well head flange on the gas storage well body, be equipped with the flange pressure disk on the well head flange, be equipped with first sealing washer and second sealing washer on the flange pressure disk, the cross section of first sealing washer is the wave, and it includes multilayer interconnect and cross section for circle or oval ring, the cross section of second sealing washer is the zigzag, correspond on the well head flange to be equipped with first sealing washer and second sealing washer shape complex first seal groove and second seal groove.
2. The well head device with high sealing performance for the gas storage well, according to claim 1, is characterized in that: the connecting line of the centers of the cross sections of the multiple layers of circular rings is vertical or parallel to the flange pressing plate.
3. The well head device with high sealing performance for the gas storage well, according to claim 2, is characterized in that: the first sealing ring comprises three layers of mutually connected rings with the same circle center.
4. The well head device with high sealing performance for the gas storage well, according to claim 3, is characterized in that: the shape of the first sealing groove is the same as that of the first sealing ring, and the first sealing ring is located in the first sealing groove.
5. The well head device with high sealing performance for the gas storage well, according to claim 4, is characterized in that: the first seal ring is made of rubber.
6. The well head device with high sealing performance for the gas storage well, according to claim 5, is characterized in that: the cross section of the second sealing ring is composed of a plurality of identical isosceles triangles.
7. The well head device with high sealing performance for the gas storage well, according to claim 6, is characterized in that: the shape of the second sealing groove is the same as that of the first sealing ring, and the second sealing groove is meshed with the second sealing ring.
CN201922239341.5U 2019-12-14 2019-12-14 Gas storage well wellhead assembly that leakproofness is strong Active CN211115899U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922239341.5U CN211115899U (en) 2019-12-14 2019-12-14 Gas storage well wellhead assembly that leakproofness is strong

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922239341.5U CN211115899U (en) 2019-12-14 2019-12-14 Gas storage well wellhead assembly that leakproofness is strong

Publications (1)

Publication Number Publication Date
CN211115899U true CN211115899U (en) 2020-07-28

Family

ID=71710046

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201922239341.5U Active CN211115899U (en) 2019-12-14 2019-12-14 Gas storage well wellhead assembly that leakproofness is strong

Country Status (1)

Country Link
CN (1) CN211115899U (en)

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