CN2547866Y - Long-life energy-saving pumping-well head polish rod sealing apparatus - Google Patents
Long-life energy-saving pumping-well head polish rod sealing apparatus Download PDFInfo
- Publication number
- CN2547866Y CN2547866Y CN 02235857 CN02235857U CN2547866Y CN 2547866 Y CN2547866 Y CN 2547866Y CN 02235857 CN02235857 CN 02235857 CN 02235857 U CN02235857 U CN 02235857U CN 2547866 Y CN2547866 Y CN 2547866Y
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- China
- Prior art keywords
- ring
- polished rod
- long
- spherical
- packing
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- Expired - Fee Related
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Abstract
A long-life energy-saving pumping-well head polish rod sealing apparatus which relates to the petroleum exploitation technology comprises an O-shaped ring 2, a spherical base 3, a large pressing cap 4, a spherical pressing cover 5, a spherical joint 6, a spacer ring 8, a seal ring 9, a rubber sleeve 10, etc., wherein, the spherical joint 6 is positioned on the spherical base 3 and is covered by the large pressing cap 4; the spherical pressing cover 5 is arranged between the large pressing cap 4 and the spherical joint 6; the seal ring 9 is covered on a polished rod 13, the rubber sleeve 10 and a packing casing 7 are respectively and orderly covered outside of the polished rod 13, the upper part of the polished rod 13 is provided with an upper pressing cover 12, a multistage seal is formed between the metal seal ring and the polished rod, and a seal function is guaranteed when the polished rod is twitched up and down; a power consumption of the polished rod is obviously reduced, and a using period of the packing is longer, fillers need not to be changed and a packing box need not to be regulated in one pump checking period; the packing box has a large pressure-resistant capacity and a safe use, so the leakage of the packing box caused by high pressure because of accidental reasons needs not to be worried, and pollution is prevented.
Description
Relate to the field
The utility model relates to oil exploitation technology, belongs to the part of sucker rod pumping well head, specifically, is exactly long-acting energy-saving pumpingh well wellhead polish rod sealing device.
Background technology
The sucker rod pumping system is used for sealing gap between polished rod and the oil pipe, prevent the device of oil gas from the gap ejection, be commonly called as packing box, traditional packing box is made up of the packing seal box and the bottom rubber gate (or bottom packing seal box of suitable rubber gate) on top, top is that normal oil pumping is used, and the bottom seals when changing portion's filler, and its filler is generally rubber, polyamine fat or contains the rubber composition of fabric, compressing of the gland of dependence top seals filler.Polished rod is subjected to the frictional force of filler and used filling kind and gland pressure dependence very big, will lose part energy like this.Filler is a soft material, and wearing and tearing are very fast, and it is less that often replacing, and soft material sealing can bear pressure, might be pressed leakage to pollute when oil well heat is washed.
Technology contents
The purpose of this utility model is to provide a kind of making to have multi-stage sealedly between metal ring and the polished rod, guarantees the tight sealing when polished rod is twitched up and down and makes the long-acting energy-saving pumpingh well wellhead polish rod sealing device that consumed power greatly reduces.
The utility model is achieved in that and comprises lower contact 1, O type circle 2, sphere base 3, big pressure cap 4, spherical gland 5, globe joint 6, packing overcoat 7, spacer ring 8, joint ring 9, rubber sleeve 10, dust ring 11, upper press cover 12, lower contact 1 is arranged at the bottom of this device, O type circle 2 is arranged in the spherical base 3, globe joint 6 is located on the spherical base 3, be with big pressure cap 4 outside the globe joint 6, between big pressure cap 4 and the globe joint 6 spherical gland 5 is housed, joint ring 9 is enclosed within on the polished rod 13, outside at polished rod 13 is overlapped rubber sleeve 10 successively respectively, packing overcoat 7, upper press cover 12 is arranged at the top of polished rod 13.
The utility model also adopts following technical scheme:
Fit clearance between joint ring 9 and the polished rod 13 is 0.2～0.5mm.
Joint ring 9 can be more than one.
Joint ring 9 is packed in the rubber sleeve 10, and its both sides are equipped with spacer ring 8.
Globe joint 6 is screwed in the packing overcoat 7.
Dust ring 11 is packed into by top in the packing overcoat 7.
O type ring recess is arranged on the spherical base 3.
The displacement of the center line of the packing box of this device is 0～15mm.
Advantage of the present utility model is: changed traditional encapsulant, a plurality of metallic packing rings 9 that have certain interval to cooperate with polished rod have been adopted, overcoat rubber sleeve 10, form airtight and watertight padding, metallic packing ring 9 once compresses when mounted, do not adjusting later on, its a plurality of metallic packing rings can not form coaxial cylindrical surface in rubber sleeve, like this with the cooperating of polished rod in, metallic packing ring 9 will seal little cylinder in different azimuth and polished rod formation part, and the cross section of metallic packing ring 9 is ground very flatly, has good sealing between ring and the ring, so just formed multi-stage sealed between metallic packing ring and the polished rod, guaranteed to seal when polished rod is twitched up and down.
The polished rod wasted power obviously reduces, and adopts the metallic packing ring sealing, makes and the friction factor of the polished rod friction factor less than rubber and polished rod that joint ring and polished rod contact area are also less than soft filler packing contact area.
The packing life cycle is long, and metallic packing ring has extraordinary abrasion resistance, need not change filler and adjust packing box in a pump detection period.
The packing box voltage endurance capability is big, and is safe in utilization, needn't worry that therefore accidental cause causes high pressure to make the packing box leakage, has avoided pollution.
Description of drawings
Accompanying drawing is a fouling schematic diagram of the present utility model.
Concrete enforcement
The utility model is by lower contact 1, O type circle 2, sphere base 3, big pressure cap 4, spherical gland 5, globe joint 6, packing overcoat 7, spacer ring 8, joint ring 9, rubber sleeve 10, dust ring 11, upper press cover 12 is formed, lower contact 1 is linked to each other with the clip head of the little four-way of well mouth of oil well, O type circle 2 is packed in the O type ring recess of spherical base 3, make spherical base 3 when moving horizontally, and globe joint 6 guarantees sealing when doing twist motion, big pressure cap 4 compresses globe joint 6 by spherical gland 5, joint ring 9 is packed in the rubber sleeve 10, spacer ring 8 is placed on both sides, again will be by spacer ring 8, joint ring 9, the assembly that rubber sleeve 10 is formed is packed in the packing overcoat 7, globe joint 6 is screwed in the packing overcoat 7, compress joint ring 9, dust ring 11 is packed in the packing overcoat 7 by top, tighten upper press cover 12.
Claims (8)
1. long-acting energy-saving pumpingh well wellhead polish rod sealing device, comprise lower contact (1), O type circle (2), sphere base (3), big pressure cap (4), spherical gland (5), globe joint (6), packing overcoat (7), spacer ring (8), joint ring (9), rubber sleeve (10), dust ring (11), upper press cover (12), it is characterized in that: lower contact (1) is arranged at the bottom of this device, O type circle (2) is arranged in the spherical base (3), globe joint (6) is located on the spherical base (3), the outer big pressure cap (4) that is with of globe joint (6), between big pressure cap (4) and the globe joint (6) spherical gland (5) is housed, joint ring (9) is enclosed within on the polished rod (13), outside at polished rod (13) is overlapped rubber sleeve (10) successively respectively, packing overcoat (7), upper press cover (12) is arranged at the top of polished rod (13).
2. long-acting energy-saving pumpingh well wellhead polish rod sealing device according to claim 1 is characterized in that: between joint ring (9) and the polished rod (13) to cooperate with the crack be 0.2～0.5mm.
3. long-acting energy-saving pumpingh well wellhead polish rod sealing device according to claim 1, it is characterized in that: joint ring (9) can be more than one.
4. long-acting energy-saving pumpingh well wellhead polish rod sealing device according to claim 1 is characterized in that: joint ring (9) is packed in the rubber sleeve (10), and its both sides are equipped with spacer ring (8).
5. long-acting energy-saving pumpingh well wellhead polish rod sealing device according to claim 1, it is characterized in that: globe joint (6) is screwed in the packing overcoat (7).
6. long-acting energy-saving pumpingh well wellhead polish rod sealing device according to claim 1 is characterized in that: dust ring (11) is packed into by top in the packing overcoat (7).
7. long-acting energy-saving pumpingh well wellhead polish rod sealing device according to claim 1 is characterized in that: O type ring recess is arranged on the spherical base (3).
8. long-acting energy-saving pumpingh well wellhead polish rod sealing device according to claim 1, it is characterized in that: the displacement of the center line of the packing box of this device is 0～15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02235857 CN2547866Y (en) | 2002-05-17 | 2002-05-17 | Long-life energy-saving pumping-well head polish rod sealing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02235857 CN2547866Y (en) | 2002-05-17 | 2002-05-17 | Long-life energy-saving pumping-well head polish rod sealing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2547866Y true CN2547866Y (en) | 2003-04-30 |
Family
ID=33710275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02235857 Expired - Fee Related CN2547866Y (en) | 2002-05-17 | 2002-05-17 | Long-life energy-saving pumping-well head polish rod sealing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2547866Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101158277B (en) * | 2007-11-09 | 2011-05-25 | 张建国 | Multifunctional polish rod sealing device |
| CN102678081A (en) * | 2012-05-18 | 2012-09-19 | 中国石油天然气股份有限公司 | Retractable packing box capable of adding and taking packing without tool |
| CN101666218B (en) * | 2008-09-01 | 2012-10-03 | 黑龙江科技学院 | Double-sealing packing box for oil field wellhead and wellhead double-sealing method |
| CN101328787B (en) * | 2007-06-18 | 2013-06-19 | 大庆油田有限责任公司 | Seal device of oil pumping machine well elastic dynamic seal well head |
| CN107387014A (en) * | 2017-09-14 | 2017-11-24 | 位兆元 | Oil pumper Universal sealed component and application process |
-
2002
- 2002-05-17 CN CN 02235857 patent/CN2547866Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101328787B (en) * | 2007-06-18 | 2013-06-19 | 大庆油田有限责任公司 | Seal device of oil pumping machine well elastic dynamic seal well head |
| CN101158277B (en) * | 2007-11-09 | 2011-05-25 | 张建国 | Multifunctional polish rod sealing device |
| CN101666218B (en) * | 2008-09-01 | 2012-10-03 | 黑龙江科技学院 | Double-sealing packing box for oil field wellhead and wellhead double-sealing method |
| CN102678081A (en) * | 2012-05-18 | 2012-09-19 | 中国石油天然气股份有限公司 | Retractable packing box capable of adding and taking packing without tool |
| CN107387014A (en) * | 2017-09-14 | 2017-11-24 | 位兆元 | Oil pumper Universal sealed component and application process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |