CN2937460Y - Automatic compensation sealing mechanism - Google Patents
Automatic compensation sealing mechanism Download PDFInfo
- Publication number
- CN2937460Y CN2937460Y CN 200620098275 CN200620098275U CN2937460Y CN 2937460 Y CN2937460 Y CN 2937460Y CN 200620098275 CN200620098275 CN 200620098275 CN 200620098275 U CN200620098275 U CN 200620098275U CN 2937460 Y CN2937460 Y CN 2937460Y
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- CN
- China
- Prior art keywords
- packing
- spring
- sealing
- polished rod
- piston
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to an auto-compensation sealing mechanism for pumping well in oil field and belongs to auxiliary equipment field of pumping machinery in oil fields, comprising a valve body, a profile packing, a piston, a connecting bolt, a spring, a spring gland, an adjusting rod and an end cap, wherein the profile packing is mounted at middle part of the valve body; two sides are provided with pistons via connecting bolts and so that, via pistons and the spring, inner hole of the profile packing is adhered firm to the surface of the polished rod for sealing; by spring compression, the profile packing has auto-compensation function. The auto-compensation sealing mechanism fundamentally comprises two elements divided into an upper structure and a lower structure, wherein the upper structure is a working sealing valve, and the lower structure is a standby sealing valve; the standby sealing valve substitutes the rubber gate so that the polished rod continues working in packing replacement. Appropriate parts of the working sealing valve and the standby sealing valve may be provided with deviation mechanisms for automatic deviation adjustment, which thoroughly solves the eccentric wear of the polished rod. The utility model is suitable for sealing pumping wellheads of various oil fields.
Description
Affiliated technical field:
The utility model relates to the automatic compensation sealing mechanism that a kind of oil field pumping well uses, and belongs to the corollary equipment field of oil-field oil pumper tool.
Background technology:
The oil well in oil field is not enough at pressure, can not the situation of blowing under, use oil pumping machinery to pump with regard to needs.The existing employed pumping unit of oilfield all is to drive polished rod with underground crude oil suction oil pipeline by oil pumper.But the pressure that polished rod produces in putting forward the process of stretching inevitably makes crude oil can spray well head, and makes the crude resources waste, and causes the pollution around the oil well.The oil field solution to this problem, generally all be adopt several rubber seal are cut off after, sheared edge is staggered, compress behind the packing box of packing into and realize sealing polished rod.The shortcoming of the method is: 1. after the sealing structure is used a period of time, because the wearing and tearing of sealing ring, and produce between the polished rod behind the certain interval and lose sealing function, make that the packing in the packing box is changed frequent.2. polished rod must quit work when changing packing, and crude oil is revealed in order to prevent to change, and also the rubber gate need be installed, and both takes a lot of work, and is time-consuming again.3. on traditional packing box deviation correcting device can not be installed, polished rod causes the well head draining after producing eccentric wear equally.
Summary of the invention:
The purpose of this utility model is: providing a kind of can compensate automatically in the wearing and tearing of warp direction to packing, both can be used as the working seal valve and prolonged adjustment cycle, can be used as the backup seal valve again and replace the rubber gate, safe and reliable, polished rod does not quit work when changing packing, and can install the automatic compensation sealing mechanism of adjusting deviation device additional.
The utility model is to realize above-mentioned purpose by the following technical solutions:
This automatic compensation sealing mechanism is made up of valve body, special-shaped packing, piston, connecting bolt, spring, packing ring, spring capping, adjusting rod and end cap, it is characterized in that: special-shaped packing is contained in the middle part of valve body, piston is equipped with by connecting bolt in the outside of special-shaped packing, be fixed with spring and adjusting rod by spring capping and packing ring in the piston, two ends of valve body is equipped with end cap, is connected with adjusting rod and dust cap on the end cap.One end of outer surface of piston is equipped with piston packing.
The utility model compared with prior art has following beneficial effect:
1, solved the existing well sealer for mouth and can not compensate automatically in the warp direction of polished rod, needed frequently to adjust, packing wearing and tearing back easily forms ellipse and leakage of oil, and is quite loaded down with trivial details and be unfavorable for safe problem during replacing.
2, can adopt up-down structure is made by this automatic compensation sealing mechanism,, substitute the rubber valve as the backup seal valve below, reach the not out-of-work purpose of polished rod when changing packing above as the working seal valve.
3, adjusting deviation device can be installed in the suitable position of working seal valve and backup seal valve, reaches the purpose of automatic deflection adjusting, has thoroughly solved the problem of polished rod eccentric wear.
Description of drawings:
Accompanying drawing is the structural representation of automatic compensation sealing mechanism.
Among the figure: 1, special-shaped packing, 2, connecting bolt, 3, piston, 4, spring capping, 5, piston packing, 6, spring, 7, end cap, 8, adjusting rod, 9, dust cap, 10, packing ring, 11, valve body, 12, the guide-localization post.
The specific embodiment:
This automatic compensation sealing mechanism is made of special-shaped packing 1, connecting bolt 2, piston 3, spring capping 4, piston packing 5, spring 6, end cap 7, adjusting rod 8, dust cap 9, packing ring 10, valve body 11 and guide-localization post 12.Special-shaped packing 1 is contained in the middle part in the valve body 11, and piston 3 is equipped with by connecting bolt 2 in the outside of special-shaped packing 1, is fixed with a spring 6 and adjusting rod 8 by spring capping 4 and packing ring 10 in the piston 3; The end cap 7 that connects adjusting rod 8 is equipped with at the two ends of valve body 11, and dust cap 9 (referring to accompanying drawing) is housed on the end cap 7.
During installation, the pumpingh well polished rod passes from the middle part of the valve body 11 of this automatic compensation sealing mechanism, the endoporus of the special-shaped packing 1 in the valve body 11 does not contact polished rod at this moment, open the dust cap 9 of seal valve again, adjusting rod 8 in the end cap 7 at regulation valve body 11 two ends, make it endoporus of special-shaped packing 1 is adjacent to the polished rod surface by spring capping 4, packing ring 10, spring 6 and piston 3, and make polished rod obtain positiver sealing, can compensate automatically, regrind after the pressure of spring 6 can make special-shaped packing 1 wear and tear by piston 3 and mend again.
During use, up-down structure is generally made by two by this automatic compensation sealing mechanism, is the working seal valve above, is the backup seal valve below.The backup seal valve is not generally worked, and the special-shaped packing 1 in it does not contact with the polished rod surface.When 1 wearing and tearing of the special-shaped packing in the working seal valve body 11 put the needs replacing in place, open the dust cap 9 of backup seal valve, regulate the adjusting rod 8 in the backup seal valve body 11 two ends end caps 7, make it endoporus of special-shaped packing 1 is adjacent to the polished rod surface, and make special-shaped packing 1 in the backup seal valve body 11 polished rod seal by spring capping 4, packing ring 10, spring 6 and piston 3.The special-shaped packing 1 that unclamps again in the working seal valve is changed, after replacing finishes, by above-mentioned process the working seal valve is adjusted to normal operation position, again the adjusting rod 8 at backup seal valve body 11 two ends is transferred pine, after its interior special-shaped packing 1 is left with polished rod, load onto dust cap 9, then the working seal valve begins operate as normal.Like this, the backup seal valve has just replaced the rubber valve, and make to change or when adding any parts on the working seal valve, polished rod does not need to quit work.
In order to make this automatic compensation sealing mechanism can reach the purpose of automatic deflection adjusting, can adopt in the appropriate location of sealing mechanism and install adjusting deviation device additional.
Claims (2)
1, a kind of automatic compensation sealing mechanism, it is by valve body (11), special-shaped packing (1), piston (3), connecting bolt (2), spring (6), packing ring (10), spring capping (4), adjusting rod (8) and end cap (7) are formed, it is characterized in that: special-shaped packing (1) is contained in the middle part of valve body (11), piston (3) is equipped with by connecting bolt (2) in the outside of special-shaped packing (1), be fixed with spring (6) and adjusting rod (8) by spring capping (4) and packing ring (10) in the piston (3), end cap (7) is equipped with at the two ends of valve body (11), is connected with adjusting rod (8) on the end cap (7).
2, automatic compensation sealing according to claim 1 mechanism, it is characterized in that: an end of piston (3) external surface is equipped with piston packing (5), and dust cap (9) is housed on the end cap (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620098275 CN2937460Y (en) | 2006-08-03 | 2006-08-03 | Automatic compensation sealing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620098275 CN2937460Y (en) | 2006-08-03 | 2006-08-03 | Automatic compensation sealing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2937460Y true CN2937460Y (en) | 2007-08-22 |
Family
ID=38361486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620098275 Expired - Fee Related CN2937460Y (en) | 2006-08-03 | 2006-08-03 | Automatic compensation sealing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2937460Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251125A (en) * | 2013-06-25 | 2014-12-31 | 荆州市高鑫石油阀件有限公司 | Universal follow-up bias adjusting polished rod sealing mechanism |
| CN113404684A (en) * | 2021-07-02 | 2021-09-17 | 北京天地玛珂电液控制系统有限公司 | Emulsion pump fluid end and emulsion pump |
| CN116717211A (en) * | 2023-08-10 | 2023-09-08 | 陕西斯锐明天智能设备有限公司 | Self-sealing packing box |
| CN117108234A (en) * | 2023-10-24 | 2023-11-24 | 克拉玛依红山油田有限责任公司 | Sectional type thermal recovery polished rod static seal structure |
-
2006
- 2006-08-03 CN CN 200620098275 patent/CN2937460Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251125A (en) * | 2013-06-25 | 2014-12-31 | 荆州市高鑫石油阀件有限公司 | Universal follow-up bias adjusting polished rod sealing mechanism |
| CN113404684A (en) * | 2021-07-02 | 2021-09-17 | 北京天地玛珂电液控制系统有限公司 | Emulsion pump fluid end and emulsion pump |
| CN116717211A (en) * | 2023-08-10 | 2023-09-08 | 陕西斯锐明天智能设备有限公司 | Self-sealing packing box |
| CN116717211B (en) * | 2023-08-10 | 2023-11-28 | 陕西斯锐明天智能设备有限公司 | Self-sealing packing box |
| CN117108234A (en) * | 2023-10-24 | 2023-11-24 | 克拉玛依红山油田有限责任公司 | Sectional type thermal recovery polished rod static seal structure |
| CN117108234B (en) * | 2023-10-24 | 2024-01-30 | 克拉玛依红山油田有限责任公司 | Sectional type thermal recovery polished rod static seal structure |
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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: 20070822 Termination date: 20150803 |
|
| EXPY | Termination of patent right or utility model |