CN204004391U - Sealing washer of well head - Google Patents
Sealing washer of well head Download PDFInfo
- Publication number
- CN204004391U CN204004391U CN201420469833.8U CN201420469833U CN204004391U CN 204004391 U CN204004391 U CN 204004391U CN 201420469833 U CN201420469833 U CN 201420469833U CN 204004391 U CN204004391 U CN 204004391U
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- ring
- well head
- packing ring
- sealing washer
- external diameter
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Abstract
The utility model discloses a kind of sealing washer of well head, the seal ring body that comprises ring, the lower surface of described seal ring body is provided with round ring boss, the external diameter of described round ring boss is less than the external diameter of described seal ring body, described round ring boss is arranged with the first packing ring outward, and the external diameter of described the first packing ring equates with the external diameter of described seal ring body; The upper surface of described seal ring body is provided with counterbore, is provided with the second packing ring in described counterbore, and the external diameter of described the second packing ring and the diameter of described counterbore are adaptive.The utility model sealing washer of well head is thoroughly blocked gas at threaded connection place leakage way, uses reliably, thoroughly solves screw thread place gas leak phenomenon, for industry is initiated.
Description
Technical field
The utility model relates to gas storage well field of sealing technology, particularly a kind of sealing washer of well head.
Background technique
In gas storage well production and application process, because gas storage well production and application gas pressure is 25MPa, belong to high pressure volume, gas in container pressure is that periodically pulsing changes, cause the casing diameter impact that is stressed, there is pulsation distortion, between well head lower flange and sleeve pipe, be oval being threaded, because casing threads is processed as finished product by production firm, the laxative remedy screw thread of assembling is processed by gas storage well manufacturer with it, box thread and male thread are manufactured by 2 units, so there is machining accuracy error, in addition in assembling process, smearing or the many reasons such as screw thread torque wrench moment size of seal gease, make the well head threaded connection place phenomenon that leaks air in use for some time, and screw thread gas leakage deals with more difficult, therefore this is a technical problem of needing solution badly.
Summary of the invention
The purpose of this utility model is to overcome existing above-mentioned deficiency in prior art, provides a kind of threaded connection place gas leak phenomenon of avoiding, the sealing washer of well head of good airproof performance.
In order to realize foregoing invention object, the technical solution adopted in the utility model is: a kind of sealing washer of well head, the seal ring body that comprises ring, the lower surface of described seal ring body is provided with round ring boss, the external diameter of described round ring boss is less than the external diameter of described seal ring body, described round ring boss is arranged with the first packing ring outward, and the external diameter of described the first packing ring equates with the external diameter of described seal ring body; The upper surface of described seal ring body is provided with counterbore, is provided with the second packing ring in described counterbore, and the external diameter of described the second packing ring and the diameter of described counterbore are adaptive.
During use, well mouth sealing device is taken apart, unclamp connecting bolt, unload upper flange and upper cover body, lower flange and sleeve pipe connection part internal diameter is large with grinding-wheel grinder, it is good enabling to put into seal ring, the first packing ring correspondence is positioned on wellbore casing end face, and the second packing ring is close to upper cover body lower surface, is loaded on heat exchanger head, upper flange, bolt on, make on seal ring circle the first packing ring and the second gasket deforms sealing gas passage that leaks, avoid like this threaded connection place gas leak phenomenon, good airproof performance.
Preferably, described round ring boss equates with the internal diameter of described seal ring body and both medial axis overlap.
Preferably, the bottom surface of described counterbore is provided with at least one seal groove.
Further, the degree of depth of described seal groove is 0.5mm.
Preferably, described round ring boss and described seal ring body are structure as a whole or separate structure.
Preferably, the height of described round ring boss is more than or equal to the thickness of described the first packing ring.
Preferably, the thickness of described the second packing ring is more than or equal to the height of described counterbore.
Preferably, described the first packing ring and the second packing ring are copper washer.
Further, the thickness of described copper washer is 5mm.
compared with prior art, the beneficial effects of the utility model: the utility model designs special seal shaft box face seal ring, and this mode is thoroughly blocked gas threaded connection place leakage way, uses reliably, thoroughly solves screw thread gas leak phenomenon, and after sealing, this Sealed casing pipe end-face structure is that industry is pioneering.
accompanying drawing explanation:
Fig. 1 is the utility model sealing washer of well head scheme of installation.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail.But this should be interpreted as to the scope of the above-mentioned theme of the utility model only limits to following embodiment, all technology realizing based on the utility model content all belong to scope of the present utility model.
In high-pressure gas storage well using process at well head gas storage well sleeve and lower flange connecting thread due to reservoir pressure cycle pulsatile change, the casing diameter impact that is stressed, along with pulsatile change, adds and manufactures and assembling reasons, through after a while, between lower flange and sleeve pipe, connecting thread leaks air, and Given this, the utility model has designed the sealing washer of well head of Sealed casing pipe end face, reliable through using, thoroughly solve gas storage well well head screw thread gas leakage problem, this structure is unique, for industry is initiated.Below in conjunction with accompanying drawing, illustrate.
Sealing washer of well head as shown in Figure 1, the seal ring body 1 that comprises ring, the lower surface of described seal ring body 1 is provided with round ring boss 2, the external diameter of described round ring boss 2 is less than the external diameter of described seal ring body 1, described round ring boss 2 is outer is arranged with the first packing ring 3, and the external diameter of described the first packing ring 3 equates with the external diameter of described seal ring body 1; The upper surface of described seal ring body 1 is provided with counterbore 5, is provided with the second packing ring 4 in described counterbore 5, and the diameter of the external diameter of described the second packing ring 4 and described counterbore 5 is adaptive.
In the present embodiment, described round ring boss 2 equates with the internal diameter of described seal ring body 1 and both medial axis overlap.The bottom surface of described counterbore 5 is provided with at least one seal groove.In the present embodiment, seal groove is 3, and the degree of depth of described seal groove is 0.5mm, and during installation, extruded gasket can make gasket deforms partly clamp-on in seal groove, good sealing effect.Described round ring boss 2 is structure as a whole or separate structure with described seal ring body 1.The height of described round ring boss 2 is more than or equal to the thickness of described the first packing ring 3, and boss 2 can facilitate guiding sleeve 6 to enter like this.The thickness of described the second packing ring 4 is more than or equal to the height of described counterbore 5, and during installation, packing ring can be highly consistent with counterbore 5 after being extruded, and makes sealing effect better simultaneously.Described the first packing ring 3 and the second packing ring 4 are copper washer.The thickness of described copper washer is 5mm.Concrete, first with Q235 steel, by design size, process seal ring, preferably seal ring body 1, boss 2 and counterbore 5 time processing are one-body molded, and lower boss 2 play the guiding role, and boss 2 can stretch in sleeve pipe 6, coordinates with it, and gap is little.Because sleeve pipe 1 end face width is generally less than 4mm, guarantee that sealing reliably acquires a certain degree of difficulty, the first packing ring 3 of the seal ring of sleeve pipe 1 end face top, be copper washer thickness 5mm, its internal diameter size and boss outside dimension adopt line cutting process mode with addition of work, join gap 0.02～0.06mm, standardized the deep sealing groove of 0.5mm in the middle of the surface part that seal ring body 1 lower surface contacts with the first packing ring 3, the first packing ring 3 width 5mm, this first packing ring 3 can thoroughly be blocked the leakage way of gas threaded connection place 11.Seal ring top seal face processes degree of depth counterbore 5, guarantee that the second packing ring 4 location are reliable, 3 the dark 0.5mm seal grooves of bottom surface processing that contact with the second packing ring 4 in counterbore 5, the second packing ring 4, be that copper washer external diameter and this counterbore 5 diameters are with addition of work, gap 0.02～0.06mm, the second packing ring 4 thickness 5mm, width 10mm.Seal ring body 1 upper and lower surface sealing surface roughness 1:6, nonparallelism is not more than 0.04mm.
During use, well mouth sealing device is taken apart, unclamp connecting bolt 10, unload upper flange 7 and upper cover body 8, lower flange 9 and sleeve pipe 6 are connected to upper part internal diameter large with grinding-wheel grinder, it is good enabling to put into seal ring, the first packing ring 3 correspondences are positioned on wellbore casing 6 end faces, cover threaded connection place 11, the second packing rings 4 and be close to upper cover body 8 lower surfaces, be loaded on heat exchanger head 8 and upper flange 7, bolt on 10, gas storage well carries out the pressure testing of 37.5MPa intensity and the pressure testing of 25MPa tightness afterwards.Bolting on 10 makes the first packing ring 3 and the second packing ring 4 deformable seal gas leak passages on seal ring, avoids like this gas leak phenomenon of threaded connection place 11, good airproof performance.
By reference to the accompanying drawings embodiment of the present utility model is had been described in detail above, but the utility model is not restricted to above-mentioned mode of execution, in the spirit and scope situation of claim that does not depart from the application, those skilled in the art can make various modifications or remodeling.
Claims (9)
1. a sealing washer of well head, the seal ring body that comprises ring, it is characterized in that, the lower surface of described seal ring body is provided with round ring boss, the external diameter of described round ring boss is less than the external diameter of described seal ring body, described round ring boss is arranged with the first packing ring outward, and the external diameter of described the first packing ring equates with the external diameter of described seal ring body; The upper surface of described seal ring body is provided with counterbore, is provided with the second packing ring in described counterbore, and the external diameter of described the second packing ring and the diameter of described counterbore are adaptive.
2. sealing washer of well head according to claim 1, is characterized in that, described round ring boss equates with the internal diameter of described seal ring body and both medial axis overlap.
3. sealing washer of well head according to claim 1, is characterized in that, the bottom surface of described counterbore is provided with at least one seal groove.
4. sealing washer of well head according to claim 3, is characterized in that, the degree of depth of described seal groove is 0.5mm.
5. sealing washer of well head according to claim 1, is characterized in that, described round ring boss and described seal ring body are structure as a whole or separate structure.
6. sealing washer of well head according to claim 1, is characterized in that, the height of described round ring boss is more than or equal to the thickness of described the first packing ring.
7. sealing washer of well head according to claim 1, is characterized in that, the thickness of described the second packing ring is more than or equal to the height of described counterbore.
8. according to the sealing washer of well head described in claim 1 to 6 any one, it is characterized in that, described the first packing ring and the second packing ring are copper washer.
9. sealing washer of well head according to claim 8, is characterized in that, the thickness of described copper washer is 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420469833.8U CN204004391U (en) | 2014-08-19 | 2014-08-19 | Sealing washer of well head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420469833.8U CN204004391U (en) | 2014-08-19 | 2014-08-19 | Sealing washer of well head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204004391U true CN204004391U (en) | 2014-12-10 |
Family
ID=52044394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420469833.8U Active CN204004391U (en) | 2014-08-19 | 2014-08-19 | Sealing washer of well head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204004391U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111878580A (en) * | 2020-06-16 | 2020-11-03 | 江苏建筑职业技术学院 | Sealing system of test device for simulating high-pore water pressure action on special-shaped structure |
| CN113324033A (en) * | 2021-06-03 | 2021-08-31 | 刘萍 | Multifunctional monitoring well mouth plugging device for refuse landfill |
-
2014
- 2014-08-19 CN CN201420469833.8U patent/CN204004391U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111878580A (en) * | 2020-06-16 | 2020-11-03 | 江苏建筑职业技术学院 | Sealing system of test device for simulating high-pore water pressure action on special-shaped structure |
| CN113324033A (en) * | 2021-06-03 | 2021-08-31 | 刘萍 | Multifunctional monitoring well mouth plugging device for refuse landfill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SICHUAN CHUANYOU GAS TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SICHUAN OIL AND NATURAL GAS SCIENTIFIC DEVELOPMENT CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 8 No. 643000 Zigong province Sichuan City Industrial Park Road Itakura Ryugo Patentee after: SICHUAN OIL NATURAL GAS TECHNOLOGY CO., LTD. Address before: 8 No. 643000 Zigong province Sichuan City Industrial Park Road Itakura Ryugo Patentee before: Sichuan Oil and Natural Gas Scientific Development Co., Ltd. |