CN204152471U - A kind of blowout preventer - Google Patents
A kind of blowout preventer Download PDFInfo
- Publication number
- CN204152471U CN204152471U CN201420595036.4U CN201420595036U CN204152471U CN 204152471 U CN204152471 U CN 204152471U CN 201420595036 U CN201420595036 U CN 201420595036U CN 204152471 U CN204152471 U CN 204152471U
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- CN
- China
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- cylinder
- packing
- righting
- main cylinder
- blowout preventer
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Abstract
The utility model relates to technical field of oil extraction equipment, a kind of blowout preventer integrating blowout prevention, righting polished rod and quick-replaceable packing specifically, comprise packing cylinder, righting mechanism and anti-spraying mechanism, described righting mechanism has four and along the radial equipartition of main cylinder, the similar chuck of operating principle of righting mechanism, can the axiality of blowout preventer and polished rod be adjusted accurately and position, prevent eccentric wear video picture, avoid poorly sealed, the packing loss because eccentric wear causes or even polished rod fracture; Open flow mechanism can avoid, when crude oil leakage after polished rod fracture, protecting the environment from pollution; In addition, when packing changed by needs, the design at packing cylinder place makes the replacing of packing simple, rapid, less on the impact of producing.
Description
Technical field
The utility model relates to technical field of oil extraction equipment, specifically a kind of blowout preventer integrating blowout prevention, righting polished rod and quick-replaceable packing.
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, therefore there is following problem: first, because suspension point and well head center line misalign, packing and polished rod generation eccentric wear will be caused, eccentric wear along with packing makes the not tight leakage of oil of wellhead sealing, also shortens the shelf life of packing; Secondly, once polished rod rubs, due to the effect of down-hole pressure, also can there is blowout video picture, cause serious environment pollution, the wasting of resources and unnecessary workover treatment.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provides a kind of simple and reasonable, blowout preventer to the righting accurate positioning of polished rod
Technical problem to be solved in the utility model realizes by the following technical solutions: a kind of blowout preventer, comprise packing cylinder and righting preventer, the upper end of described packing cylinder is connected with packing cylinder cap, Screw disk-seal tube is provided with in described packing cylinder, the upper and lower end of Screw disk-seal tube is respectively arranged with upper press cover and lower cover, and described packing cylinder cap is provided with spanner; Described righting preventer comprises main cylinder, righting mechanism and anti-spraying mechanism, and described main cylinder passes the lower end of packing cylinder and is fixedly connected with lower cover; Described righting mechanism has four and along the radial equipartition of main cylinder, righting mechanism comprises side neck and push rod, and described side neck is perpendicular to main cylinder and be fixedly connected with main cylinder; Described push rod be positioned at side neck inside and with side neck threaded engagement, the steel ball I that the inner of push rod is provided with ball pivot seat and is connected with ball pivot seat ball pivot; Described anti-spraying mechanism is positioned at the below of righting mechanism, and anti-spraying mechanism comprises oblique cylinder, steel ball II and blind nut, and described oblique cylinder is fixedly connected with main cylinder, and oblique cylinder is inclined upwardly, and described steel ball II is located in oblique cylinder; Be provided with the anti-spout that diameter is less than steel ball II diameter in described main cylinder, described anti-spout is between righting mechanism and anti-spraying mechanism; Described blind nut is threaded with oblique cylinder.
Operating principle of the present utility model: righting mechanism has four and along the radial equipartition of main cylinder, the similar chuck of its action principle, can by turning the position of push rod adjustment push rod, and then adjust and locate the position of polished rod, ensure the axiality of polished rod and main cylinder, when polished rod moves up and down, steel ball I and polish rod rolling friction, decrease the wearing and tearing of polished rod; For anti-spraying mechanism, when normally producing, polished rod moves up and down in main cylinder, and steel ball II is blocked in oblique cylinder; When polished rod rupture and below the blowout preventer that drops time, steel ball II drops in main cylinder with polished rod, and then under pressure, steel ball II rises and blocks anti-spout, prevents crude oil leakage.
Described ball pivot seat comprises pedestal and lid, is welded to connect between pedestal and lid.Steel ball I is put into pedestal, is then welded on pedestal by lid, steel ball I forms spherical pair with the inner chamber of pedestal and lid.
As preferably, also comprise the holding nut be connected with main cylinder threaded upper ends, described holding nut is for supporting packing cylinder.Adopt the technical program, when packing changed by needs, first turn on packing cylinder cap, then turn holding nut and drive packing cylinder to move down, expose the Screw disk-seal tube be wrapped on polished rod and change.
The angle of described main cylinder and oblique cylinder is 40-80 degree.
Described main cylinder is threaded with lower cover.
The diameter of described steel ball I is 20-30 millimeter.
Relative to prior art, the beneficial effects of the utility model are: can adjust the axiality of blowout preventer and polished rod accurately and position, prevent eccentric wear video picture, avoid poorly sealed, the packing loss because eccentric wear causes or even polished rod fracture; 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 front view of the utility model blowout preventer.
Fig. 2 is the view along Fig. 1 A-A direction.
In figure: 1, packing cylinder, 2, packing cylinder cap, 3, Screw disk-seal tube, 4, upper press cover, 5, lower cover, 6, main cylinder, 7, righting mechanism, 7-1, side neck, 7-2, push rod, 7-3, ball pivot seat, 7-3-1, pedestal, 7-3-2, lid, 7-4, steel ball I, 8, anti-spraying mechanism, 8-1, tiltedly cylinder, 8-2, steel ball II, 8-3, blind nut, 8-4, anti-spout, 9, holding nut, 10, polished rod, 11, spanner.
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 and Figure 2: a kind of blowout preventer, comprise packing cylinder 1 and righting preventer, the upper end of described packing cylinder 1 is connected with packing cylinder cap 2, Screw disk-seal tube 3 is provided with in described packing cylinder 1, the upper and lower end of Screw disk-seal tube 3 is respectively arranged with upper press cover 4 and lower cover 5, and described packing cylinder cap 2 is provided with spanner 11; Described righting preventer comprises main cylinder 6, righting mechanism 7 and anti-spraying mechanism 8, and described main cylinder 6 passes the lower end of packing cylinder 1 and is threaded with lower cover 5, and main cylinder 6 upper end is provided with the holding nut 9 be threaded with main cylinder 6, for supporting packing cylinder 1; Described righting mechanism 7 has four and along the radial equipartition of main cylinder 6, righting mechanism 7 comprises side neck 7-1 and push rod 7-2, and described side neck 7-1 is perpendicular to main cylinder 6 and be fixedly connected with main cylinder 6; Described push rod 7-2 be positioned at side neck 7-1 inside and with side neck 7-1 threaded engagement, the inner of push rod 7-2 is provided with ball pivot seat 7-3 and steel ball I 7-4, described ball pivot seat 7-3 comprises pedestal 7-3-1 and lid 7-3-2, pedestal 7-3-1 and lid 7-3-2 surrounds and forms spherical cavity, steel ball I 7-4 is arranged in spherical cavity, pedestal 7-3-1 and lid 7-3-2 is by being welded and fixed, and the diameter of described steel ball I 7-4 is 25 millimeters; Described anti-spraying mechanism 8 is positioned at the below of righting mechanism 7, anti-spraying mechanism 8 comprises oblique cylinder 8-1, steel ball II 8-2 and blind nut 8-3, described oblique cylinder 8-1 is fixedly connected with main cylinder 6, and oblique cylinder 8-1 is inclined upwardly and is 45 degree with the angle of main cylinder 6, and described steel ball II 8-2 is located in oblique cylinder 8-1; Be provided with the anti-spout 8-4 that diameter is less than steel ball II 8-2 diameter in described main cylinder 6, described anti-spout 8-4 is between righting mechanism 7 and anti-spraying mechanism 8; Described blind nut 8-3 is threaded with oblique cylinder 8-1.
Operating principle of the present utility model: righting mechanism 7 has four and along the radial equipartition of main cylinder 6, the similar chuck of its action principle, the position of push rod 7-2 can be adjusted by turning push rod 7-2, and then adjust and locate the position of polished rod 10, ensure the axiality of polished rod 10 and main cylinder 6, when polished rod 10 moves up and down, steel ball I 7-4 and polished rod 10 rolling friction, decrease the wearing and tearing of polished rod 10; For anti-spraying mechanism 8, when normally producing, polished rod 10 moves up and down in main cylinder 6, and steel ball II 8-2 is blocked in oblique cylinder 8-1; When polished rod 10 rupture and below the blowout preventer that drops time, steel ball II 8-2 drops in main cylinder 6 with polished rod 10, and then under pressure, steel ball II 8-2 rises and blocks anti-spout 8-4, prevents crude oil leakage; When Screw disk-seal tube 3 changed by needs, first turn on packing cylinder cap 2, then turn holding nut 9 and drive packing cylinder 1 to move down, expose the Screw disk-seal tube 3 be wrapped on polished rod 10 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 blowout preventer, the packing cylinder cap (2) comprising packing cylinder (1) and be connected with the upper end of packing cylinder (1), Screw disk-seal tube (3) is provided with in described packing cylinder (1), the upper and lower end of Screw disk-seal tube (3) is respectively arranged with upper press cover (4) and lower cover (5), described packing cylinder cap (2) is provided with spanner (11), it is characterized in that: also comprise righting preventer, described righting preventer comprises main cylinder (6), righting mechanism (7) and anti-spraying mechanism (8), described main cylinder (6) through packing cylinder (1) lower end and be fixedly connected with lower cover (5); Described righting mechanism (7) has four and along the radial equipartition of main cylinder (6), righting mechanism (7) comprises side neck (7-1) and push rod (7-2), and described side neck (7-1) is perpendicular to main cylinder (6) and be fixedly connected with main cylinder (6); Described push rod (7-2) be positioned at side neck (7-1) inside and with side neck (7-1) threaded engagement, the steel ball I (7-4) that the inner of push rod (7-2) is provided with ball pivot seat (7-3) and is connected with ball pivot seat (7-3) ball pivot; Described anti-spraying mechanism (8) is positioned at the below of righting mechanism (7), anti-spraying mechanism (8) comprises oblique cylinder (8-1), steel ball II (8-2) and blind nut (8-3), described oblique cylinder (8-1) is fixedly connected with main cylinder (6), oblique cylinder (8-1) is inclined upwardly, and described steel ball II (8-2) is located in oblique cylinder (8-1); Be provided with the anti-spout (8-3) that diameter is less than steel ball II (8-2) diameter in described main cylinder (6), described anti-spout (8-3) is positioned between righting mechanism (7) and anti-spraying mechanism (8); Described blind nut (8-3) is threaded with oblique cylinder (8-1).
2. blowout preventer according to claim 1, is characterized in that: described ball pivot seat (7-3) comprises pedestal (7-3-1) and lid (7-3-2), is welded to connect between pedestal (7-3-1) and lid (7-3-1).
3. blowout preventer according to claim 1, is characterized in that: also comprise the holding nut (9) be connected with main cylinder (6) threaded upper ends, and described holding nut (9) is for supporting packing cylinder (1).
4., according to the arbitrary described blowout preventer of claim 1-3, it is characterized in that: described main cylinder (6) is 40-80 degree with the angle of oblique cylinder (8-1).
5., according to the arbitrary described blowout preventer of claim 1-3, it is characterized in that: described main cylinder (6) is threaded with lower cover (5).
6., according to the arbitrary described blowout preventer of claim 1-3, it is characterized in that: the diameter of described steel ball I (7-4) is 20-30 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420595036.4U CN204152471U (en) | 2014-10-15 | 2014-10-15 | A kind of blowout preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420595036.4U CN204152471U (en) | 2014-10-15 | 2014-10-15 | A kind of blowout preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204152471U true CN204152471U (en) | 2015-02-11 |
Family
ID=52510596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420595036.4U Expired - Fee Related CN204152471U (en) | 2014-10-15 | 2014-10-15 | A kind of blowout preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204152471U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107769077A (en) * | 2017-11-13 | 2018-03-06 | 国家电网公司 | A kind of hot line maintenance unmanned plane based on multifunctional base |
-
2014
- 2014-10-15 CN CN201420595036.4U patent/CN204152471U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107769077A (en) * | 2017-11-13 | 2018-03-06 | 国家电网公司 | A kind of hot line maintenance unmanned plane based on multifunctional base |
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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: 20150211 Termination date: 20151015 |
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| EXPY | Termination of patent right or utility model |