CN2066908U - Polish rod sealing device for pumping machine without filling material - Google Patents
Polish rod sealing device for pumping machine without filling material Download PDFInfo
- Publication number
- CN2066908U CN2066908U CN90205287U CN90205287U CN2066908U CN 2066908 U CN2066908 U CN 2066908U CN 90205287 U CN90205287 U CN 90205287U CN 90205287 U CN90205287 U CN 90205287U CN 2066908 U CN2066908 U CN 2066908U
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- sealing
- utility
- model
- rod
- sealing device
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model provides a polish rod sealing device for pumping machine without packing, which replaces the existing packing box sealing. Because the relative rest sealing of a seal ring and a polished rod, and the telescoping sealing of rubber bellows is adopted in the utility model, the utility model has the advantages of no abrasion, good sealing effect, and high mechanical efficiency of the oil pumping unit.
Description
The utility model provides a kind of polish rod seal device that is used for the oil field beam-pumping unit.
The polish rod seal device of beam-pumping unit adopts the packing box sealing always for many years, this packing box seal arrangement makes a part of mechanical energy consume in vain in the friction of polished rod and packing, but also to consume a large amount of rubber packings, also very serious to the wearing and tearing of oil-extractor polish-rod in addition.If run into the askew partially oil well of well head, the problems referred to above will be more serious.Be motive sealing between packing and the polished rod, always some liquid will leak out in addition, and sealing effect is bad.
The purpose of this utility model is to provide a kind of non-stuffing oil-extractor polish-rod seal arrangement.Adopt rubber bellows seal, remove former packing and packing box from, can overcome above-mentioned shortcoming and defect.
Fig. 1 is a non-stuffing oil-extractor polish-rod schematic diagram of sealing device.
Describe structure of the present utility model and operation principle in detail below in conjunction with accompanying drawing.
As shown in Figure 1, the utility model mainly is made of O RunddichtringO 2, pressure cap 3, inner seal ring 4, rubber corrugated pipe 5, lower seal head 6 and adpting flange 7.Wherein pressure cap 3 is connected with inner seal ring 4 with the polished rod 1 of pumping unit.O RunddichtringO 2 in the inner seal ring 4 is with the surface of contact sealing of polished rod 1 and inner seal ring 4, and O RunddichtringO 2 is relative static with polished rod 1.Flange 7 connects lower seal head 6 and wellhead flange 8.Two of rubber corrugated pipe 5 is connected and shuts respectively with between inner seal ring 4 and the lower seal head 6, and when polished rod 1 upstream or downstream were reciprocating, rubber corrugated pipe 5 was along with fore and aft motion is made in the upper and lower to-and-fro motion of polished rod 1.Because between O RunddichtringO 2, the polished rod 1 is standstill seal, rely on rubber corrugated pipe to carry out telescopic sealing, make that the liquid in the well can not leak out, to reach the purpose of sealing.
The utility model has the advantages that:
1, the utility model adopts the flexible sealing of standstill seal and rubber corrugated pipe, good sealing effect;
2, because the motive sealing form that the utility model has been removed the relative movement between packing and the polished rod surface of contact from does not rub, improved the mechanical efficiency of pumping unit;
3, use the utility model not need accurately well head has been solved the problem to the well head difficulty;
4, use the utility model greatly reduces the wearing and tearing to polished rod.Polished rod also need not to carry out anti-wear, etch-proof special processing.
Claims (1)
1, a kind of non-stuffing oil-extractor polish-rod seal arrangement that is used for the beam-pumping unit polished rod seal, it is made of O RunddichtringO 2, pressure cap 3, inner seal ring 4, bellows 5, lower seal head 6 and adpting flange 7, it is characterized in that: pressure cap 3 is connected with inner seal ring 4 with oil-extractor polish-rod 1, flange 7 connects lower seal head 6 and wellhead flange 8, bellows 5 is connected with lower seal head 6 with inner seal ring 4 respectively and shuts, and is provided with O RunddichtringO 2 in the inner seal ring 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN90205287U CN2066908U (en) | 1990-04-28 | 1990-04-28 | Polish rod sealing device for pumping machine without filling material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN90205287U CN2066908U (en) | 1990-04-28 | 1990-04-28 | Polish rod sealing device for pumping machine without filling material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2066908U true CN2066908U (en) | 1990-12-05 |
Family
ID=4886084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN90205287U Withdrawn CN2066908U (en) | 1990-04-28 | 1990-04-28 | Polish rod sealing device for pumping machine without filling material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2066908U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101644148B (en) * | 2008-08-06 | 2013-01-16 | 大庆油田有限责任公司 | Non-smooth flexible rope corrugated pipe wellhead sealing device |
| CN103097783A (en) * | 2010-09-15 | 2013-05-08 | 阿尔斯通技术有限公司 | Sealing device and method |
| CN103410466A (en) * | 2013-07-31 | 2013-11-27 | 张健 | Polish rod sealer |
| CN103993850A (en) * | 2013-08-27 | 2014-08-20 | 托普威尔石油技术股份公司 | Packing box |
-
1990
- 1990-04-28 CN CN90205287U patent/CN2066908U/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101644148B (en) * | 2008-08-06 | 2013-01-16 | 大庆油田有限责任公司 | Non-smooth flexible rope corrugated pipe wellhead sealing device |
| CN103097783A (en) * | 2010-09-15 | 2013-05-08 | 阿尔斯通技术有限公司 | Sealing device and method |
| CN103097783B (en) * | 2010-09-15 | 2015-11-25 | 阿尔斯通技术有限公司 | Seal arrangement and method |
| CN103410466A (en) * | 2013-07-31 | 2013-11-27 | 张健 | Polish rod sealer |
| CN103993850A (en) * | 2013-08-27 | 2014-08-20 | 托普威尔石油技术股份公司 | Packing box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |