CN2849141Y - Inner layer nitriding anticorrusion oil proof paraffin removal blowout prevention device - Google Patents
Inner layer nitriding anticorrusion oil proof paraffin removal blowout prevention device Download PDFInfo
- Publication number
- CN2849141Y CN2849141Y CN 200520143276 CN200520143276U CN2849141Y CN 2849141 Y CN2849141 Y CN 2849141Y CN 200520143276 CN200520143276 CN 200520143276 CN 200520143276 U CN200520143276 U CN 200520143276U CN 2849141 Y CN2849141 Y CN 2849141Y
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- CN
- China
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- main body
- packing
- blowout prevention
- pressing cap
- nitriding
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Abstract
The utility model relates to an inner layer nitriding anticorrusion oil proof paraffin removal blowout prevention device which mainly solves problems that a packing for the existing wellhead has time-taking and labor-taking replacement., and a blowout prevention box has a poor anticorrosion property. The utility model is characterized in that the upper end of a deviation regulating ball (1) is connected with the inside of the lower end of a main body (2) of a packing box by a screw thread, a conical surface (3) is arranged in the upper end of the deviation regulating ball (1), the conical surface (3) is provided with a lower pressing cap (4) of the packing box, and a packing (5) and an upper pressing cap (6) are respectively arranged on the lower pressing cap (4), wherein a pressing cover (7) is sheathed on the upper pressing cap (6) which is connected with the main body (2) of the packing box, and the outer surface of the deviation regulating ball (1) is provided with a nitriding layer. The inner layer nitriding anticorrusion oil proof paraffin removal blowout prevention device has the characteristics that the utility model saves time and labor when the packing is replaced, and the blowout prevention box has good anticorrosion property.
Description
Technical field:
The utility model relates to the anticorrosion grease proofing wax removal self-regulated blowout hookup of the used blowout prevention of rod-pumped well, especially internal layer nitriding in the oil recovery field, oil field.
Background technology:
At present in recovering the oil in the oil field, production wellhead links to each other with oil pipe and sleeve pipe, be to control subsurface pressure and output crude oil, be connected with petroleum pipeline on the ground, simultaneously in order to guarantee the sealing of sucker rod and well head, be connected with packing box in the well head upper end,, blowout prevention box and wax removal valve be installed in the well head upper end in order to prevent sucker rod partial wear and when changing packing, to cause blowout.And packing box, blowout prevention box and wax removal valve on the present well head exist owing to their structural reasons, and packing box is wasted time and energy when changing packing, and efficient is low, and the antiseptic property of blowout prevention box is poor.Increased the wellhead maintenance workload, cost of production raises, and must not apply.
The utility model content:
Existing well head replacing packing is wasted time and energy and the deficiency of the antiseptic property difference of blowout prevention box in order to overcome, the utility model provides a kind of internal layer nitriding anticorrosion grease proofing wax removal self-regulated blowout hookup, and the anticorrosion grease proofing wax removal self-regulated blowout hookup of this internal layer nitriding has the good characteristics of antiseptic property of changing the time saving and energy saving and blowout prevention box of packing.
The technical solution of the utility model is: the anticorrosion grease proofing wax removal self-regulated blowout hookup of this internal layer nitriding comprises tuningout ball and the packing box main body in paraffin valve door main body, the blowout prevention box main body, link to each other with tuningout ball upper end by screw thread in the packing box main body lower end, the tuningout ball has the conical surface in the upper end, the conical surface is equipped with the packing box lower pressing cap, be equipped with packing, upper pressing cap on the lower pressing cap respectively, be covered with gland on the upper pressing cap and link to each other with the packing box main body, the tuningout outer surface of ball has nitriding layer.
Paraffin valve door main body lower end in the such scheme is connected with eccentric short circuit.
The beneficial effect that the utlity model has is: the anticorrosion grease proofing wax removal self-regulated blowout hookup of this internal layer nitriding is owing to adopted such scheme, at first because the packing box main body links to each other by screw thread with the tuningout ball, like this when changing packing, screw thread between packing box main body and tuningout ball is unclamped, rotate the packing box gland again, packing can come out in packing box, thereby it is time saving and energy saving to change packing, improve inefficiency, reduced labor strength, and improved sealing effectiveness; Secondly because of tuningout ball 1 external surface has nitriding layer, strengthen wear resistence, reduced maintenance load, guaranteed sealing; Be connected with eccentric short circuit at paraffin valve student end at last, when sinking to causing the well head deflection owing to operation, immerge and pipeline, place well head in the heart sucker rod by rotating short circuit earlier, when oil pumper moves by blowout prevention box tuningout, so just two from partially anti-by short circuit and blowout prevention box, thereby effectively raise anti-bias energy, reduce workover cost, guarantee the normal operation of oil pumper.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model.
1-tuningout ball among the figure, 2-packing box main body, the 3-conical surface, 4-lower pressing cap, 5-packing, 6-upper pressing cap, 7-gland, 8-paraffin valve door main body, the eccentric short circuit of 9-.
The specific embodiment:
Below in conjunction with accompanying drawing will the utility model is described in further detail:
By shown in Figure 1, the anticorrosion grease proofing wax removal self-regulated blowout hookup of this internal layer nitriding comprises paraffin valve door main body 8, tuningout ball 1 and packing box main body 2 in the blowout prevention box main body, link to each other with tuningout ball 1 upper end by screw thread in packing box main body 2 lower ends, the tuningout ball has the conical surface 3 in 1 upper end, the conical surface 3 is equipped with packing box lower pressing cap 4, be equipped with packing 5 on the lower pressing cap 4 respectively, upper pressing cap 6, be covered with gland 7 on the upper pressing cap 6 and link to each other with packing box main body 2, at first because packing box main body 2 and tuningout ball 1 link to each other by screw thread, be split, when changing packing 5, packing box main body 2 and 1 screw thread of tuningout ball unclamped like this, rotate packing box gland 7 again, packing 5 can come out in packing box, thereby it is time saving and energy saving to change packing, has improved inefficiency, reduce labor strength, and improved sealing effectiveness; Tuningout ball 1 external surface has nitriding layer, secondly because of tuningout ball 1 external surface has nitriding layer, has strengthened wear resistence, reduces maintenance load, has guaranteed sealing; Paraffin valve door main body 8 lower ends are connected with eccentric short circuit 9, be connected with eccentric short circuit 9 in wax removal valve 8 lower ends at last, when sinking to causing the well head deflection owing to operation, immerge and pipeline, place well head in the heart sucker rod by rotating short circuit 9 earlier, by blowout prevention box tuningout, it is two from tuningout so just can to pass through short circuit 9 and blowout prevention box when oil pumper moves, thereby effectively raises anti-bias energy, reduce workover cost, guarantee the normal operation of oil pumper.
Claims (2)
1, the anticorrosion grease proofing wax removal self-regulated blowout hookup of a kind of internal layer nitriding, comprise tuningout ball (1) and packing box main body (2) in paraffin valve door main body (8), the blowout prevention box main body, it is characterized in that: link to each other with tuningout ball (1) upper end by screw thread in packing box main body (2) lower end, tuningout ball (1) has the conical surface (3) in the upper end, the conical surface (3) is equipped with packing box lower pressing cap (4), be equipped with packing (5), upper pressing cap (6) on the lower pressing cap (4) respectively, be covered with gland (7) on the upper pressing cap (6) and link to each other with packing box main body (2), tuningout ball (1) external surface has nitriding layer.
2, the anticorrosion grease proofing wax removal self-regulated blowout hookup of internal layer nitriding according to claim 1, it is characterized in that: paraffin valve door main body (8) lower end is connected with eccentric short circuit (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520143276 CN2849141Y (en) | 2005-11-23 | 2005-11-23 | Inner layer nitriding anticorrusion oil proof paraffin removal blowout prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520143276 CN2849141Y (en) | 2005-11-23 | 2005-11-23 | Inner layer nitriding anticorrusion oil proof paraffin removal blowout prevention device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2849141Y true CN2849141Y (en) | 2006-12-20 |
Family
ID=37521625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520143276 Expired - Fee Related CN2849141Y (en) | 2005-11-23 | 2005-11-23 | Inner layer nitriding anticorrusion oil proof paraffin removal blowout prevention device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2849141Y (en) |
-
2005
- 2005-11-23 CN CN 200520143276 patent/CN2849141Y/en not_active Expired - Fee Related
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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: 20061220 Termination date: 20101123 |