CN2934559Y - Anti-bias friction and anti-spray well port polished rod seal device - Google Patents
Anti-bias friction and anti-spray well port polished rod seal device Download PDFInfo
- Publication number
- CN2934559Y CN2934559Y CN 200620029194 CN200620029194U CN2934559Y CN 2934559 Y CN2934559 Y CN 2934559Y CN 200620029194 CN200620029194 CN 200620029194 CN 200620029194 U CN200620029194 U CN 200620029194U CN 2934559 Y CN2934559 Y CN 2934559Y
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- CN
- China
- Prior art keywords
- packing
- blowout prevention
- spheroid
- blowing
- pressure cap
- Prior art date
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- Expired - Fee Related
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- Sealing Devices (AREA)
Abstract
An anti - eccentric wear and anti-blowing wellhead rod seal device relates to an oil sealing device, including an anti - eccentric wear part and an anti-blowing part. The anti- eccentric wear part includes a spherical tight head, an anti-wear bush, a packing set, a packing gland nut and a packing gland ring. The anti-wear bush and the packing set are arranged in the internal cavity of the tight head, the top of the spherical tight head is connected with the packing gland nut through a thread and the packing gland ring is arranged between the spherical tight head and the packing gland nut. The anti-blowing part consists of a middle connector, an anti-blowing floating ball and an anti-blowing top-joint. The middle connector is connected with the anti-blowing top-joint through a thread, the anti-blowing floating ball is arranged in the anti-blowing top-joint, the spherical tight head is arranged in the groove of the middle connector; and the spherical packing gland nut arranged on the top is connected with the middle connector through a thread. Due to the spherical tight head, the utility model can not only prevent biased friction, but also adjust direction arbitrarily, extend the service life of the components and reduce the maintenance workload. Due to the anti-blowing floating ball, the utility model could prevent a large number of crude oil spraying when the sucker rod breaks down, thereby increasing oil production and preventing pollution of the environment.
Description
Technical field:
The utility model relates to the wellhead polish rod sealing device of oil field oil recovery usefulness, especially relates to a kind of anti-eccentric wear and prevents the outer polish rod seal device of crude oil ejection well.
Background technology:
At present, the wellhead polish rod sealing device overwhelming majority that use at the scene of recovering the oil, oil field is the rubber packing, and is partially anti-, not wear-resisting, service life of equipment is short, also needs often maintenance, and when the fracture of oil pumping cursor, cause a large amount of outer sprays of crude oil, both influenced oil yield, again contaminated environment.Though reported in literature has the sealing device of some anti-eccentric wear blowout preventions, do not promote the use of because its structure is all very complicated.
Summary of the invention:
Technical problem to be solved in the utility model provides a kind of not only anti-eccentric wear simple in structure but also the wellhead polish rod sealing device of blowout prevention, thereby prolongs service life of equipment, reduces maintenance load, improves oil pumping yield, prevents the pollution of the environment.
The technical solution of the utility model is: comprise anti-eccentric wear and blowout prevention two parts, anti-eccentric wear partly be positioned at blowout prevention part above, anti-eccentric wear partly comprises spheroid packing box, abrasionproof lining, packing, packing pressure cap, packing pressure ring, the moving rod joint of two symmetries of packing pressure cap outside weld, spheroid packing box center has a through hole to form the box body inner chamber, abrasionproof lining and packing are located at the box body inner chamber, spheroid packing box upper end is threaded with the packing pressure cap, and the packing ring is located at the top of box body inner chamber and between spheroid packing box and packing pressure cap; Blowout prevention partly comprises intermediate connector, blowout prevention ball float, blowout prevention top connection, intermediate connector is threaded with the blowout prevention top connection, connection of thread is provided with O-ring seal, blowout prevention top connection upper surface is provided with cavity, the built-in blowout prevention ball float of cavity, the intermediate connector upper surface has groove, and the middle part has through hole, the lower surface has bellmouth orifice, and the aperture of through hole is less than the blowout prevention floating ball diameter; Spheroid packing box bottom spheroid is bumped in the groove of intermediate connector upper surface, and on top the spheroid pressure cap is set and is threaded with intermediate connector, at spheroid pressure cap and the inner cooperation place of intermediate connector O-ring seal and joint ring are set, the spheroid pressure cap is the moving rod joint of two symmetries of outside weld also.
The utility model increases the spheroid packing box, can prevent eccentric wear, can reconcile service orientation arbitrarily again, prolong parts application life, reduce maintenance load, the blowout prevention ball float is set, cause a large amount of outer sprays of crude oil when preventing the oil pumping polish rod fracture, improved oil production, prevent contaminated environment simultaneously.
Description of drawings:
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment:
With reference to accompanying drawing, the utility model comprises anti-eccentric wear and blowout prevention two parts, anti-eccentric wear partly be positioned at blowout prevention part above, anti-eccentric wear partly comprises spheroid packing box 6, abrasionproof lining 5, packing 4, packing pressure cap 3, packing pressure ring 1, the moving rod joint 2 of two symmetries of packing pressure cap 3 outside welds, spheroid packing box 6 centers have a through hole to form box body inner chamber 20, abrasionproof lining 5 and packing 4 are located at the box body inner chamber, spheroid packing box 6 upper ends are threaded with packing pressure cap 3, and packing pressure ring 1 is located at the top of box body inner chamber and between spheroid packing box 6 and packing pressure cap 3; Blowout prevention partly comprises intermediate connector 13, blowout prevention ball float 14, blowout prevention top connection 15, intermediate connector 13 is threaded with blowout prevention top connection 15, and fixing with fixed stably nail 12, connection of thread is provided with O-ring seal 11, prevents to leak, blowout prevention top connection 15 upper surfaces are provided with cavity 16, the built-in blowout prevention ball float 14 of cavity, intermediate connector 13 upper surfaces have groove 19, and the middle part has through hole 18, the lower surface has bellmouth orifice 17, and the aperture of through hole 18 is less than blowout prevention ball float 14 diameters; Spheroid packing box 6 bottom spheroids are bumped in the groove 19 of intermediate connector 13 upper surfaces, and spheroid pressure cap 9 rotation that is threaded with intermediate connector 13 is set on top tightens, spheroid packing box 6 is located by instructions for use, in order to reach sealing, former bright oil is leaked, dispose two O-ring seals 10 and joint ring 7 in spheroid pressure cap 9 and 13 inner cooperations of intermediate connector, spheroid pressure cap 9 is the moving rod joint 8 of two symmetries of outside weld also.
During work, spheroid packing box 6 can rotate freely by 360 degree, can tiltedly draw figurines degree location with oil pumping polish rod, prevents to cause the packing box wearing and tearing because oil pumping polish rod tiltedly draws; If oil pumping polish rod snaps, when polished rod broken end sank to the following position of the cavity 16 of blowout prevention top connection 15 upper surfaces, the through hole 18 at shutoff intermediate connector 13 middle parts that blowout prevention ball float 14 draining stream effect outside down can be firm did not outwards spray crude oil and lets out.
Claims (1)
1, a kind of anti-eccentric wear Blowout prevention wellhead polish rod seal device, comprise anti-eccentric wear and blowout prevention two parts, anti-eccentric wear partly be positioned at blowout prevention part above, it is characterized in that: anti-eccentric wear partly comprises spheroid packing box, abrasionproof lining, packing, packing pressure cap, packing pressure ring, the moving rod joint of two symmetries of packing pressure cap outside weld, spheroid packing box center has a through hole to form the box body inner chamber, abrasionproof lining and packing are located at the box body inner chamber, spheroid packing box upper end is threaded with the packing pressure cap, and the packing pressure ring is located at the top of box body inner chamber and between spheroid packing box and packing pressure cap; Blowout prevention partly comprises intermediate connector, blowout prevention ball float, blowout prevention top connection, intermediate connector is threaded with the blowout prevention top connection, connection of thread is provided with O-ring seal, blowout prevention top connection upper surface is provided with cavity, the built-in blowout prevention ball float of cavity, the intermediate connector upper surface has groove, and the middle part has through hole, the lower surface has bellmouth orifice, and the aperture of through hole is less than the blowout prevention floating ball diameter; Spheroid packing box bottom spheroid is bumped in the groove of intermediate connector upper surface, and on top the spheroid pressure cap is set and is threaded with intermediate connector, at spheroid pressure cap and the inner cooperation place of intermediate connector O-ring seal and joint ring are set, the spheroid pressure cap is the moving rod joint of two symmetries of outside weld also.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620029194 CN2934559Y (en) | 2006-08-16 | 2006-08-16 | Anti-bias friction and anti-spray well port polished rod seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620029194 CN2934559Y (en) | 2006-08-16 | 2006-08-16 | Anti-bias friction and anti-spray well port polished rod seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2934559Y true CN2934559Y (en) | 2007-08-15 |
Family
ID=38351249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620029194 Expired - Fee Related CN2934559Y (en) | 2006-08-16 | 2006-08-16 | Anti-bias friction and anti-spray well port polished rod seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2934559Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075124A (en) * | 2011-10-25 | 2013-05-01 | 季会军 | Oil field wellhead with protection installation |
| CN104265226A (en) * | 2014-09-17 | 2015-01-07 | 涞鑫（天津）密封技术有限公司 | Self-centering polished rod sealing device |
-
2006
- 2006-08-16 CN CN 200620029194 patent/CN2934559Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075124A (en) * | 2011-10-25 | 2013-05-01 | 季会军 | Oil field wellhead with protection installation |
| CN104265226A (en) * | 2014-09-17 | 2015-01-07 | 涞鑫（天津）密封技术有限公司 | Self-centering polished rod sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070815 Termination date: 20090916 |