CN204266972U - A kind of multifunctional capping device - Google Patents
A kind of multifunctional capping device Download PDFInfo
- Publication number
- CN204266972U CN204266972U CN201420677275.4U CN201420677275U CN204266972U CN 204266972 U CN204266972 U CN 204266972U CN 201420677275 U CN201420677275 U CN 201420677275U CN 204266972 U CN204266972 U CN 204266972U
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- China
- Prior art keywords
- packing
- cylinder
- bellows
- housing
- connecting cylinder
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- Expired - Fee Related
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Abstract
The utility model relates to technical field of oil extraction equipment, specifically a kind of multifunctional capping device integrating blowout prevention, eccentric abrasion prevention and quick-replaceable packing, the packing cylinder cap comprising packing cylinder and be connected with the threaded upper ends of packing cylinder, be provided with packing in described packing cylinder, between packing cylinder cap and packing, be provided with gland; The lower end of described packing cylinder has been threaded connecting cylinder, and the upper end of described connecting cylinder contacts with packing; Also comprise blowout hookup and bellows, described bellows is located between connecting cylinder and blowout hookup, and the upper end of described bellows and the lower end of connecting cylinder are tightly connected, and the lower end of bellows and the upper end of housing are tightly connected.The beneficial effects of the utility model are: by telescopic bellows, packing and polished rod are together moved back and forth up and down, thus reduce the wearing and tearing of packing, extend the application life of packing; When effectively stopping crude oil leakage after polished rod fracture; In addition, polished rod need not be shifted out and just can change packing, less on the impact of producing.
Description
Technical field
The utility model relates to technical field of oil extraction equipment, specifically a kind of multifunctional capping device.
Background technology
In sucker rod pumping process, leak from well head to prevent crude oil, at well head, blowout preventer is housed, the object of sealing oil pipe and polished rod annular space is played in oil well normal productive process, its Main Function is by packing_seal polished rod, prevent polished rod in the process of moving up and down in well crude oil ejection well head.Because pumping unit hanging point, polished rod and well head axiality does not when mounted reach requirement, packing and the long-term eccentric wear of polished rod, cause the not tight leakage of oil of wellhead sealing, also shorten the application life of packing; In addition, once polished rod rubs, due to the effect of down-hole pressure, also blowout video picture be can there is, serious environment pollution, the wasting of resources and unnecessary workover treatment caused.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provides one can reduce packing and polished rod wearing and tearing, and can prevent the multifunctional capping device of crude oil leakage after polished rod fracture.
Technical problem to be solved in the utility model realizes by the following technical solutions: a kind of multifunctional capping device, the packing cylinder cap comprising packing cylinder and be connected with the threaded upper ends of packing cylinder, be provided with packing in described packing cylinder, between packing cylinder cap and packing, be provided with gland; The lower end of described packing cylinder has been threaded connecting cylinder, and the upper end of described connecting cylinder contacts with packing; Also comprise blowout hookup, described blowout hookup comprises housing, symmetrically arranged two rubber stoppers and seal nipple, the inner chamber upper end of described housing is conical, the top of described rubber stopper is semicircle cone, the bottom of rubber stopper is semicylinder, the tapering of rubber stopper top semicircle cone is identical with the tapering of housing cavity upper end, and the radius of rubber stopper lower semicircular cylinder is greater than the radius of housing upper port; Lower end and the seal nipple of described housing are tightly connected, and are provided with spring between seal nipple and rubber stopper; Be provided with bellows between described connecting cylinder and blowout hookup, the upper end of described bellows and the lower end of connecting cylinder are tightly connected, and the lower end of bellows and the upper end of housing are tightly connected.
During work, polished rod is through blowout preventer, and when polished rod moves back and forth up and down, packing and polished rod together move up and down, and bellows changes the distance between packing cylinder and blowout hookup by stretching, packing and polished rod do not produce relative movement; When polished rod normally works, two rubber stoppers lay respectively at the both sides of polished rod, spring is in compressive state, when polished rod ruptures and falls under blowout preventer, two rubber stoppers under the action of the spring along the conical internal cavity of housing upper end upwards, move inward, gather and be integrated and block the upper port of housing, prevent crude oil from spraying; When packing changed by needs, first back out packing cylinder cap, then turn packing cylinder packing cylinder is moved down along connecting cylinder, eject packing and change.
The technical solution of the utility model also has: the top and bottom of described bellows are respectively equipped with upper flange and lower flange, and the lower surface of described upper flange and connecting cylinder is bolted to connection, and the upper surface of described lower flange and housing is bolted to connection.
The technical solution of the utility model also has: be equipped with O type circle between described upper flange and connecting cylinder lower surface and between lower flange and housing upper surface.
The technical solution of the utility model also has: described lower flange is installed with the vertical axis of guide, and upper flange is provided with pilot hole, and the described axis of guide and pilot hole are slidably matched.Adopting the technical program to be the rigidity be connected with bellows to increase tube connector, preventing bellows when changing packing or in bellows telescopic process from twisting occurring and damages.
The technical solution of the utility model also has: the lower end of described seal nipple is provided with seam, is used for being connected with production tree.
The technical solution of the utility model also has: described packing cylinder and packing cylinder cap are equipped with spanner, convenient when turning packing cylinder or packing cylinder cap.
Relative to prior art, the beneficial effects of the utility model are: by telescopic bellows, packing and polished rod are together moved back and forth up and down, thus reduce the wearing and tearing of packing, extend the application life of packing, prevent from causing crude oil to be revealed because of poorly sealed; When effectively crude oil leakage can be stopped after polished rod fracture, protect the environment from pollution; In addition, polished rod need not be shifted out and just can change packing, simple to operate, rapid, less on the impact of producing.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model multifunctional capping device.
In figure: 1, packing cylinder, 2, packing cylinder cap, 3, packing, 4, gland, 5, connecting cylinder, 6, housing, 7, rubber stopper, 8, seal nipple, 9, spring, 10, bellows, 11, upper flange, 12, lower flange, 13, O type circle, 14, the axis of guide, 15, seam, 16, spanner, 17, polished rod.
Detailed description of the invention
For the technical characterstic of this programme can be clearly demonstrated, with reference to the accompanying drawings the utility model detailed description of the invention is described further below.
As shown in Figure 1: a kind of multifunctional capping device, the packing cylinder cap 2 comprising packing cylinder 1 and be connected with the threaded upper ends of packing cylinder 1, described packing cylinder 1 and packing cylinder cap 2 are equipped with spanner 16, in packing cylinder 1, are provided with packing 3, between packing cylinder cap 2 and packing 3, be provided with gland 4; The lower end of packing cylinder 1 has been threaded connecting cylinder 5, and the upper end of described connecting cylinder 5 contacts with packing 3; Also comprise blowout hookup, described blowout hookup comprises housing 6, symmetrically arranged two rubber stoppers 7 and seal nipple 8, the inner chamber upper end of described housing 6 is conical, the top of described rubber stopper 7 is semicircle cone, the bottom of rubber stopper 7 is semicylinder, the tapering of rubber stopper 7 top semicircle cone is identical with the tapering of housing 6 inner chamber upper end, and the radius of rubber stopper 7 lower semicircular cylinder is greater than the radius of housing 6 upper port; Lower end and the seal nipple 8 of described housing 6 are tightly connected, and are provided with spring 9 between seal nipple 8 and rubber stopper 7, and the lower end of seal nipple 8 is provided with seam 15; Bellows 10 is provided with between described connecting cylinder 5 and blowout hookup, the top and bottom of described bellows 10 are respectively equipped with upper flange 11 and lower flange 12, described upper flange 11 is bolted to connection with the lower surface of connecting cylinder 5, described lower flange 12 is bolted to connection with the upper surface of housing 6, is equipped with O type circle 13 between described upper flange 11 and connecting cylinder 5 lower surface and between lower flange 12 and housing 6 upper surface; Lower flange 12 is installed with the vertical axis of guide 14, upper flange 11 is provided with pilot hole, and the described axis of guide 14 is slidably matched with pilot hole.
During work, polished rod 17 is through blowout preventer, and when polished rod 17 moves back and forth up and down, packing 3 and polished rod 17 together move up and down, and bellows 10 changes the distance between packing cylinder 1 and blowout hookup by stretching, and packing 3 and polished rod 17 do not produce relative movement; When polished rod 17 normally works, two rubber stoppers 7 lay respectively at the both sides of polished rod 17, spring 9 is in compressive state, when polished rod 17 ruptures and falls under blowout preventer, two rubber stoppers 7 under the effect of spring 9 along the conical internal cavity of housing 6 upper end upwards, move inward, gather and be integrated and block the upper port of housing 6, prevent crude oil from spraying; When packing 3 changed by needs, first back out packing cylinder cap 2, then turn packing cylinder 1 packing cylinder 1 is moved down along connecting cylinder 5, eject packing 3 and change.
By reference to the accompanying drawings embodiment of the present utility model is elaborated above, but the utility model is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, can also make a variety of changes under the prerequisite not departing from the utility model aim.
Claims (6)
1. a multifunctional capping device, the packing cylinder cap (2) comprising packing cylinder (1) and be connected with the threaded upper ends of packing cylinder (1), is provided with packing (3) in described packing cylinder (1), is provided with gland (4) between packing cylinder cap (2) and packing (3), the lower end of described packing cylinder (1) has been threaded connecting cylinder (5), the upper end of described connecting cylinder (5) contacts with packing (3), it is characterized in that: also bag blowout hookup, described blowout hookup comprises housing (6), symmetrically arranged two rubber stoppers (7) and seal nipple (8), the inner chamber upper end of described housing (6) is conical, the top of described rubber stopper (7) is semicircle cone, the bottom of rubber stopper (7) is semicylinder, the tapering of rubber stopper (7) top semicircle cone is identical with the tapering of housing (6) inner chamber upper end, the radius of rubber stopper (7) lower semicircular cylinder is greater than the radius of housing (6) upper port, lower end and the seal nipple (8) of described housing (7) are tightly connected, and are provided with spring (9) between seal nipple (8) and rubber stopper (7), be provided with bellows (10) between described connecting cylinder (5) and blowout hookup, the upper end of described bellows (10) and the lower end of connecting cylinder (5) are tightly connected, and the lower end of bellows (10) and the upper end of housing (6) are tightly connected.
2. multifunctional capping device according to claim 1, it is characterized in that: the top and bottom of described bellows (10) are respectively equipped with upper flange (11) and lower flange (12), described upper flange (11) is bolted to connection with the lower surface of connecting cylinder (5), and described lower flange (12) is bolted to connection with the upper surface of housing (6).
3. multifunctional capping device according to claim 2, is characterized in that: be equipped with O type circle (13) between described upper flange (11) and connecting cylinder (5) lower surface and between lower flange (12) and housing (6) upper surface.
4. multifunctional capping device according to claim 2, is characterized in that: described lower flange (12) is installed with the vertical axis of guide (14), upper flange (11) is provided with pilot hole, and the described axis of guide (14) and pilot hole are slidably matched.
5., according to the arbitrary described multifunctional capping device of claim 1-4, it is characterized in that: the lower end of described seal nipple (8) is provided with seam (15).
6., according to the arbitrary described multifunctional capping device of claim 1-4, it is characterized in that: described packing cylinder (1) and packing cylinder cap (2) are equipped with spanner (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420677275.4U CN204266972U (en) | 2014-11-14 | 2014-11-14 | A kind of multifunctional capping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420677275.4U CN204266972U (en) | 2014-11-14 | 2014-11-14 | A kind of multifunctional capping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204266972U true CN204266972U (en) | 2015-04-15 |
Family
ID=52801844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420677275.4U Expired - Fee Related CN204266972U (en) | 2014-11-14 | 2014-11-14 | A kind of multifunctional capping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204266972U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014321A (en) * | 2016-08-05 | 2016-10-12 | 苑海阔 | Polished rod sealing device of retractable rod pumped well |
| CN106050158A (en) * | 2016-07-20 | 2016-10-26 | 刘正义 | Automatic-centering universal adjusting device for packing box of oil well |
-
2014
- 2014-11-14 CN CN201420677275.4U patent/CN204266972U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050158A (en) * | 2016-07-20 | 2016-10-26 | 刘正义 | Automatic-centering universal adjusting device for packing box of oil well |
| CN106014321A (en) * | 2016-08-05 | 2016-10-12 | 苑海阔 | Polished rod sealing device of retractable rod pumped well |
| CN106014321B (en) * | 2016-08-05 | 2019-03-01 | 苑海阔 | Telescopic polished rod sealing device for rod-pumped well |
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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: 20150415 Termination date: 20151114 |
|
| EXPY | Termination of patent right or utility model |