CN220036641U - Novel wellhead sealing device - Google Patents
Novel wellhead sealing device Download PDFInfo
- Publication number
- CN220036641U CN220036641U CN202321555451.2U CN202321555451U CN220036641U CN 220036641 U CN220036641 U CN 220036641U CN 202321555451 U CN202321555451 U CN 202321555451U CN 220036641 U CN220036641 U CN 220036641U
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- CN
- China
- Prior art keywords
- plate
- sealing device
- annular groove
- oil duct
- plectane
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- 238000007789 sealing Methods 0.000 title claims abstract description 22
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 239000003921 oil Substances 0.000 description 32
- 238000011084 recovery Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000010687 lubricating oil Substances 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 239000003208 petroleum Substances 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Sealing Devices (AREA)
Abstract
The utility model discloses a novel wellhead sealing device, which relates to the field of oil exploitation and aims at solving the problem that the potential safety hazard is likely to occur due to overlarge internal pressure of a wellhead in the prior art.
Description
Technical Field
The utility model relates to the field of petroleum exploitation, in particular to a novel wellhead sealing device.
Background
Petroleum is a fluid mineral deeply buried underground, and has the advantages of large energy density, convenient transportation and storage, small pollution degree to the atmosphere after combustion and the like compared with coal, and the petroleum is an important energy source in the national economy.
Chinese patent CN212671665U discloses a well head seal protection device, including circular oil recovery well head, the fixed cover of lateral wall that circular oil recovery well head leaned on the upper end is equipped with the seal frame, the seal groove has been seted up to the inner of seal frame, the upper end of circular oil recovery well head leads to the inner of seal groove, the lateral wall that circular oil recovery well head is located the fixed cover of lower extreme of seal frame is equipped with the closing plate, the both sides wall of seal frame and closing plate are on the coplanar, the both sides wall of seal frame and closing plate are all fixed and are provided with the backplate, the seal groove bottom plate is located the both sides of circular oil recovery well head all and is provided with the bolt No. one, the lower extreme of two bolts runs through seal frame and closing plate and leads to the lower extreme of closing plate, two lateral wall both corners that the backplate is close to the lower extreme all are provided with the bolt No. two. This novel well head seals protection device, simple structure, convenient to use, sealing capability is strong, but the sealing frame of its upper end is comparatively sealed, if use strict seal, probably leads to the internal pressure of well head too big, easily appears the potential safety hazard.
Disclosure of Invention
In view of the problems existing in the prior art, the utility model discloses a novel wellhead sealing device, which adopts the technical scheme that the novel wellhead sealing device comprises a first circular plate, a second circular plate and a circular tube, wherein the first circular plate is connected with the second circular plate through the circular tube, a through hole is formed in the first circular plate, the novel wellhead sealing device further comprises a piston, the piston is connected with the circular tube and a pressure relief tube, the pressure relief tube is connected with the circular tube and further comprises a movable plate and a compression spring, the movable plate is connected with the circular tube, one end of the compression spring is connected with the movable plate, the other end of the compression spring is connected with the piston, a sealing gasket is connected at the bottom of the first circular plate, and a reinforcing plate is connected to the circular tube and can strengthen the root of the pressure relief tube due to the fact that the pressure in a well is large.
As a preferable technical scheme of the utility model, the second circular plate is connected with a movable block, and the movable block is connected with the movable plate.
As a preferable technical scheme of the utility model, the second circular plate is connected with a mounting frame, the mounting frame is connected with a damper, and the damper is connected with the movable block.
As a preferable technical scheme of the utility model, the second circular plate is provided with a first filling hole, and the movable plate is provided with a second filling hole.
As a preferable technical scheme of the utility model, the left ends of the first circular plate and the second circular plate are connected with a second limiting plate, the right end of the first circular plate and the second circular plate are connected with a first limiting plate, a limiting groove is formed in the first limiting plate, a connecting rod is connected between the first limiting plate and the second limiting plate, and the connecting rod can act on the first limiting plate and the second limiting plate in a tensioning way.
As a preferable technical scheme of the utility model, the piston is provided with a first annular groove, a second annular groove and a third annular groove, and further comprises a first oil duct, a second oil duct and a third oil duct, wherein the first oil duct is connected with the first annular groove, the second oil duct is connected with the second annular groove, the third oil duct is connected with the third annular groove, and oil can enter the three annular grooves through the three oil ducts respectively, so that the lubricating effect is achieved.
The utility model has the beneficial effects that: according to the utility model, the bottom of the first circular plate is connected with the wellhead, the sealing gasket plays a role in sealing, the second limiting plate and the first limiting plate can play a role in fixing and limiting the second circular plate and the circular tube, the strength of connection is increased, when the pressure in the circular tube is increased, the piston is pushed upwards, the pressure relief tube can relieve pressure, the reinforcing plate is arranged as an opening reinforcement, the movable plate and the movable block are pushed upwards by compression spring contraction, the damper on the mounting frame can play a role in providing damping, lubricating oil can be filled in the first filling hole, oil flows into the upper part of the first filling hole from the second filling hole, and flows into the first annular groove, the second annular groove and the third annular groove from the first oil duct, the second oil duct and the third oil duct respectively, so that pressure relief can be performed, the excessive internal pressure of the wellhead can be avoided, and the potential safety hazard is reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic top view of a first limiting plate and a second limiting plate according to the present utility model;
FIG. 3 is a schematic cross-sectional view of a piston according to the present utility model.
In the figure: 1. a first limiting plate; 2. a second limiting plate; 3. a sealing gasket; 4. a first circular plate; 5. a through hole; 6. a round tube; 7. a piston; 8. a limit groove; 9. a pressure relief tube; 10. a reinforcing plate; 11. a compression spring; 12. a movable plate; 13. a second circular plate; 14. a mounting frame; 15. a damper; 16. a movable block; 17. a first filling hole; 18. a second filling hole; 19. a connecting rod; 20. a first oil passage; 21. a second oil passage; 22. a third oil passage; 23. a first annular groove; 24. a second annular groove; 25. and a third annular groove.
Detailed Description
Example 1
As shown in fig. 1 to 3, the utility model discloses a novel wellhead sealing device, which adopts the technical scheme that the novel wellhead sealing device comprises a first circular plate 4, a second circular plate 13 and a circular tube 6, wherein the first circular plate 4 and the second circular plate 13 are fixedly connected with the circular tube 6, the pressure of an oil exploitation wellhead is usually large, the first circular plate 4 and the second circular plate 13 can play a role in increasing the strength of two ends of the circular tube 6, a piston 7 is slidably connected in the circular tube 6, lubricating oil is convenient to slide on two sides of the piston 7, a certain air tightness is realized, the novel wellhead sealing device further comprises a pressure relief tube 9, the pressure relief tube 9 is connected with the circular tube 6 in a welding mode, when the internal pressure is overlarge, the pressure relief tube 9 can play a role in pressure relief by lifting the piston 7, the pressure relief tube 12 and a compression spring 11 are further included, one end of the compression spring 11 is fixedly connected with the circular tube 6, the other end of the compression spring 11 can play a role in connection and energy storage, the other end of the piston 7 is fixedly connected with the piston 7, and the first circular plate 4 is connected with the pressure relief tube 6 in a certain place, and the pressure relief tube 6 is connected with the pressure relief tube 6 in a certain place, and the pressure relief tube is weak due to the fact that the pressure relief tube is connected with the pressure relief tube 6. The second circular plate 13 is movably connected with a movable block 16, and the movable block 16 is fixedly connected with the movable plate 12. The second circular plate 13 is fixedly connected with a mounting frame 14, the mounting frame 14 is connected with a damper 15 through a bolt, and the damper 15 is connected with the movable block 16 through a bolt. For the lubrication oil of being convenient for to annotate makes piston 7 activity comparatively easy, be equipped with first filling hole 17 on the second plectane 13, be equipped with second filling hole 18 on the fly leaf 12, first plectane 4 with the left end of second plectane 13 is connected with second limiting plate 2, and the right-hand member is connected with first limiting plate 1, and first limiting plate 1 and second limiting plate 2 can play spacing effect to first plectane 4 and second plectane 13, second limiting plate 2 with the cross-section of first limiting plate 1 is convex, swing joint has connecting rod 19 between first limiting plate 1 with the second limiting plate 2. The piston 7 is provided with a first annular groove 23, a second annular groove 24 and a third annular groove 25, is convenient for storing oil, and further comprises a first oil duct 20, a second oil duct 21 and a third oil duct 22, wherein the first oil duct 20 is connected with the first annular groove 23, the second oil duct 21 is connected with the second annular groove 24, and the third oil duct 22 is connected with the third annular groove 25, so that the flow of lubricating oil is smoother.
The working principle of the utility model is as follows: first, the well head is connected to the bottom of first plectane 4, sealed pad 3 plays sealed effect, second limiting plate 2 is connected with first limiting plate 1 can play fixed spacing second plectane 13 and pipe 6, increase the intensity of connection, when the pressure in the pipe 6 increases, push up piston 7, pressure release pipe 9 department can carry out the pressure release, reinforcing plate 10 sets up as the trompil reinforcement, compression spring 11 shrink pushes up fly leaf 12 and movable block 16, the attenuator 15 on the mounting bracket 14 can play the effect that provides the damping, can fill lubricating oil from first filling hole 17, the fluid is from second filling hole 18 entering first filling hole 17 top, it is lubricated from first oil duct 20, second oil duct 21, third oil duct 22 department flows first ring channel 23, second ring channel 24, third ring channel 25 department respectively.
The mechanical connection according to the utility model is a customary practice adopted by the person skilled in the art, and the technical teaching can be obtained by a limited number of tests, which belongs to the common general knowledge.
The components not described in detail herein are prior art.
Although the specific embodiments of the present utility model have been described in detail, the present utility model is not limited to the above embodiments, and various changes and modifications without inventive labor may be made within the scope of the present utility model without departing from the spirit of the present utility model, which is within the scope of the present utility model.
Claims (6)
1. Novel well head sealing device, its characterized in that: including first plectane (4), second plectane (13), pipe (6), first plectane (4) with second plectane (13) are connected through pipe (6), be equipped with through-hole (5) on first plectane (4), still include piston (7), piston (7) with pipe (6) are connected, still include pressure release pipe (9), pressure release pipe (9) with pipe (6) are connected, still include fly leaf (12), compression spring (11), fly leaf (12) with pipe (6) are connected, compression spring (11) one end with fly leaf (12) are connected, the other end with piston (7) are connected, first plectane (4) bottom is connected with sealed pad (3), be connected with stiffening plate (10) on pipe (6).
2. A novel wellhead sealing device in accordance with claim 1, wherein: the second circular plate (13) is connected with a movable block (16), and the movable block (16) is connected with the movable plate (12).
3. A novel wellhead sealing device in accordance with claim 2, wherein: the second circular plate (13) is connected with a mounting frame (14), the mounting frame (14) is connected with a damper (15), and the damper (15) is connected with the movable block (16).
4. A novel wellhead sealing device in accordance with claim 1, wherein: the second circular plate (13) is provided with a first filling hole (17), and the movable plate (12) is provided with a second filling hole (18).
5. A novel wellhead sealing device in accordance with claim 1, wherein: the novel disc comprises a first disc (4) and a second disc (13), wherein the left end of the first disc is connected with a second limiting plate (2), the right end of the first disc is connected with a first limiting plate (1), a limiting groove (8) is formed in the first limiting plate (1), and a connecting rod (19) is connected between the first limiting plate (1) and the second limiting plate (2).
6. A novel wellhead sealing device in accordance with claim 1, wherein: the piston (7) is provided with a first annular groove (23), a second annular groove (24) and a third annular groove (25), and further comprises a first oil duct (20), a second oil duct (21) and a third oil duct (22), wherein the first oil duct (20) is connected with the first annular groove (23), the second oil duct (21) is connected with the second annular groove (24), and the third oil duct (22) is connected with the third annular groove (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321555451.2U CN220036641U (en) | 2023-06-19 | 2023-06-19 | Novel wellhead sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321555451.2U CN220036641U (en) | 2023-06-19 | 2023-06-19 | Novel wellhead sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220036641U true CN220036641U (en) | 2023-11-17 |
Family
ID=88732269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321555451.2U Active CN220036641U (en) | 2023-06-19 | 2023-06-19 | Novel wellhead sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220036641U (en) |
-
2023
- 2023-06-19 CN CN202321555451.2U patent/CN220036641U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |