CN201599005U - Manual controller of light ram blowout preventer - Google Patents
Manual controller of light ram blowout preventer Download PDFInfo
- Publication number
- CN201599005U CN201599005U CN2009203140520U CN200920314052U CN201599005U CN 201599005 U CN201599005 U CN 201599005U CN 2009203140520 U CN2009203140520 U CN 2009203140520U CN 200920314052 U CN200920314052 U CN 200920314052U CN 201599005 U CN201599005 U CN 201599005U
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- shaft
- bearing
- ram
- end cap
- piston assembly
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Abstract
The utility model discloses a manual controller of a light ram blowout preventer. A pipe ram shaft connected with a pipe ram and a piston assembly are disposed inside the ram blowout preventer, the pipe ram shaft is fixedly sleeved into the piston assembly, spaces on two sides of the piston assembly are utilized as a starting cavity and a closing cavity for operation of oil, a locking shaft penetrates into an end cap of the ram preventer, the locking shaft and the end cap are supported through a bearing to realize rotation, the front end of the locking shaft is in threaded connection with the pipe ram shaft to form a screw pair, the middle portion of the locking shaft is provided with a shaft ring, one side of the bearing contacts with the end cap, and the other side of the bearing is in sealing contact with the shaft ring on the locking shaft through an internal circlip to form a rotating pair. The manual controller of a light ram blowout preventer has the advantages that the pipe ram can be closed manually, conveniently and fast due to a combined structure of the screw pair and the rotating pair, thereby greatly reducing labor intensity of operators and effectively preventing well explosion.
Description
Technical field
The utility model belongs to petroleum drilling and mining equipment technology field, relates to a kind of light-duty ram preventer manual overvide.
Background technology
In oil, gas well exploration and development process, ram preventer is enforcement pressure balance drilling well, controls strata pressure, prevents one of visual plant that gas blowout accident takes place.At present, the control of closing and open of ram preventer flashboard mainly contains three kinds of forms: hydraulic control, manually control and hydraulic pressure and manual compound control.In the drilling process, when hydraulic control system lost efficacy, just necessary employing manually control realized quick closing well, and manual overvide is light at this moment, the laborsaving crucial effects that plays.And present ram preventer manual overvide ubiquity inconvenient operation, labour intensity are big, reaction speed waits shortcoming slowly, do not satisfy the requirement of manual-lock flashboard.
Summary of the invention
The purpose of this utility model provides a kind of light-duty ram preventer manual overvide, has solved existing manual overvide unreasonable structure, big, the problem of slow response of operation labour intensity.
The technical scheme that the utility model adopted is, a kind of light-duty ram preventer manual overvide, be included in and be provided with flashboard axis and the piston assembly that links to each other with flashboard in the ram preventer, flashboard axis is fixedly set in the piston assembly, the space, both sides of piston assembly is as the unlatching chamber of fluid work and close the chamber, be installed with lock shaft in the end cap of ram preventer, by bearings, the front end of lock shaft and flashboard axis are by being threaded between lock shaft and the end cap; The middle part of lock shaft is provided with the axle collar.
Manual overvide of the present utility model, its feature also is:
One end of described bearing contacts with axle collar sealing by circlip for hole, and the other end of bearing contacts with the fin sealing of end cap by end cap seal.
Described bearing is selected sliding bearing or rolling bearing for use.
The beneficial effects of the utility model are, owing to adopted the composite construction of screw pair and revolute, when needs manual-lock flashboard, light, the quick closedown of energy, thereby the generation that reduces operator's labour intensity greatly and effectively prevent gas blowout accident, locking flashboard axis when being adapted to ram preventer manual-lock flashboard and flashboard and need closing for a long time.
Description of drawings
Fig. 1 is the partial sectional view of the utility model device;
Fig. 2 is the partial enlarged drawing of the utility model device.
Among the figure, 1. flashboard axis, 2. piston assembly, 3. circlip for hole, 4. bearing, 5. end cap seal, 6. lock shaft, 7. end cap, the 8. axle collar.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
As Fig. 1, Fig. 2, the structure of the utility model device is, be included in and be provided with flashboard axis 1 and the piston assembly 2 that links to each other with flashboard in the ram preventer, flashboard axis 1 is fixedly set in the piston assembly 2, the space, both sides of piston assembly 2 is as the unlatching chamber of fluid work and close the chamber, is installed with lock shaft 6 in the end cap 7 of ram preventer, supports by bearing 4 between lock shaft 6 and the end cap 7 and realizes rotations, the front end of lock shaft 6 and flashboard axis 1 constitute a screw pair by being threaded; The middle part of lock shaft 6 is provided with the axle collar 8, and an end of bearing 4 contacts with the axle collar 8 sealings by circlip for hole 3, and the other end of bearing 4 contacts with the fin sealing of end cap 7 by end cap seal 5, and the axle collar 8 of lock shaft 6 constitutes a revolute with bearing 4.
Bearing 4 is sliding bearing, rolling bearing or other similar structures.Bearing 4 also can be realized the location by other form by circlip for hole 3 location.
Bearing 4 one sides contact with end cap 7, and bearing 4 other sides contact by the sealing of the axle collar on circlip for hole 3 and the lock shaft 6, and the formation revolute also can be made of other similar type.
The operating principle of the utility model device is:
1) when adopting hydraulic pressure to close flashboard, hydraulic oil enters closes chamber promotion piston assembly 2, and piston assembly 2 drives flashboard axis 1, and lock shaft 6 near the motion of well head center position, promotes flashboard with flashboard axis 1, the realization shut-in well.Then, reverse rotation lock shaft 6 makes the joint face of screw pair shorten, and the support distances of 6 pairs of flashboard axis 1 of lock shaft is elongated, realizes the locking of flashboard axis 1.
2) in the time of need closing flashboard when the hydraulic control system inefficacy, artificial reverse rotation lock shaft 6 makes the joint face of screw pair shorten, and the support distances of 6 pairs of flashboard axis 1 of lock shaft is elongated, promote flashboard axis 1 near the well head central motion, realize the locking of flashboard axis 1 and realize shut-in well.
Light-duty ram preventer manual overvide of the present utility model, owing to adopted the composite construction of screw pair and revolute, when needs manual-lock flashboard, light, the quick closedown of energy, thereby the generation that reduces operator's labour intensity greatly and effectively prevent gas blowout accident, locking flashboard axis when being adapted to ram preventer manual-lock flashboard and flashboard and need closing for a long time.
Claims (3)
1. light-duty ram preventer manual overvide, it is characterized in that: be included in and be provided with flashboard axis (1) and the piston assembly (2) that links to each other with flashboard in the ram preventer, flashboard axis (1) is fixedly set in the piston assembly (2), the space, both sides of piston assembly (2) is as the unlatching chamber of fluid work and close the chamber, in the end cap (7) of ram preventer, be installed with lock shaft (6), support by bearing (4) between lock shaft (6) and the end cap (7), the front end of lock shaft (6) and flashboard axis (1) are by being threaded; The middle part of lock shaft (6) is provided with the axle collar (8).
2. manual overvide according to claim 1, it is characterized in that: an end of described bearing (4) contacts with the axle collar (8) sealing by circlip for hole (3), and the other end of bearing (4) contacts with the fin sealing of end cap (7) by end cap seal (5).
3. manual overvide according to claim 1 is characterized in that: described bearing (4) is selected sliding bearing or rolling bearing for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203140520U CN201599005U (en) | 2009-11-04 | 2009-11-04 | Manual controller of light ram blowout preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203140520U CN201599005U (en) | 2009-11-04 | 2009-11-04 | Manual controller of light ram blowout preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201599005U true CN201599005U (en) | 2010-10-06 |
Family
ID=42810059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203140520U Expired - Fee Related CN201599005U (en) | 2009-11-04 | 2009-11-04 | Manual controller of light ram blowout preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201599005U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103161422A (en) * | 2011-12-13 | 2013-06-19 | 海德里尔美国制造业有限责任公司 | Visual ram position indicator apparatuses and methods |
-
2009
- 2009-11-04 CN CN2009203140520U patent/CN201599005U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103161422A (en) * | 2011-12-13 | 2013-06-19 | 海德里尔美国制造业有限责任公司 | Visual ram position indicator apparatuses and methods |
| CN103161422B (en) * | 2011-12-13 | 2017-05-17 | 海德里尔美国制造业有限责任公司 | Visual ram position indicator apparatuses, method added to ram BOP and ram BOP |
| US9863549B2 (en) | 2011-12-13 | 2018-01-09 | Hydril Usa Distribution, Llc | Visual ram position indicator apparatuses and methods |
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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: 20101006 Termination date: 20121104 |