CN101235838A - Blowout preventer manual hydraulic control locking apparatus - Google Patents
Blowout preventer manual hydraulic control locking apparatus Download PDFInfo
- Publication number
- CN101235838A CN101235838A CNA2008100448243A CN200810044824A CN101235838A CN 101235838 A CN101235838 A CN 101235838A CN A2008100448243 A CNA2008100448243 A CN A2008100448243A CN 200810044824 A CN200810044824 A CN 200810044824A CN 101235838 A CN101235838 A CN 101235838A
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- hydraulic
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- blowout preventer
- hydraulic control
- hydraulic cylinder
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Abstract
The invention relates to a blowout preventer manual hydraulic control locking device, which comprises a double-action handle, two main hydraulic cylinders, four check valves, two big working hydraulic cylinders, two small working hydraulic cylinders, a hydraulic lock, a flashboard blowout preventer, two stop valves, a manual control hydraulic three-position four-way valve, an oil box, a safe relief valve and a locking shaft which are mutually connected, wherein the double-action handle is connected with a hinge, and other various valves and the hydraulic cylinders are all fixed on a special connecting stand. The blowout preventer manual hydraulic control locking device overcomes the defects that a prior manual mechanical locking device has big operation labor intensity, slow speed, jamming when operating and unreliable working and the like, the manual hydraulic control locking device absorbs the advantages of the hydraulic control locking device, thereby achieving the integrated locking of manual and hydraulic control of the blowout preventer. The blowout preventer manual hydraulic control locking device is suitable to control an original hydraulic locking mechanism to act using a combined hydraulic cylinder manual hydraulic control system with a labor saving function when an original hydraulic control system of the flashboard blowout preventer is failure, thereby achieving the manual hydraulic locking of the blowout preventer.
Description
Technical field
Patent of the present invention is applicable to when hydraulic control unit lost efficacy, can utilizes hydraulic manual control unit that preventer is manually controlled the pass, drives a well and locked.
Background technique
Present blowout preventer hydraulic locking device has armstrong's patent locking and two kinds of structures of hydraulic lock.
The purpose of ram preventer installing armstrong's patent locking device is behind hydraulic pressure installation control ram preventer closing well, guarantee preventer reliably and with long-term shut-in well and when hydraulic control was lost efficacy, preventer is locked with armstrong's patent control lock mandrel, guarantee preventer reliability in use.
The hydraulic locking apparatus of preventer is meant that the locking of flashboard and release action all utilize hydraulic pressure to finish automatically.The operating feature of hydraulic locking apparatus is: after ram preventer utilized hydraulic pressure to realize the closing well operation, locking device was finished the flashboard locking action immediately automatically under the effect of oil pressure; Otherwise when ram preventer utilizes hydraulic pressure to drive a well, under the effect of hydraulic control oil pressure, finish flashboard release action at first automatically, and then realize that hydraulic pressure drives a well.
At present, hydraulic locking apparatus in usefulness can not be realized manual locking, therefore under the hydraulic control unit failure conditions, ram preventer can not carry out the locking action behind the closing well, the labor intensity in armstrong's patent locking device when operation that adds present use is big, speed is slow, the jam phenomenon appears in operation often, has limited applying of armstrong's patent locking device.
Summary of the invention
In order to bring into play the advantage of hydraulic control, guarantee that hydraulic locking apparatus still possesses the manual-operated emergent locking function when hydraulic system fails, the present invention proposes a kind of blowout preventer manual hydraulic control locking apparatus, this device liquid collecting control and hand-hydraulic are controlled to be one, improved the hydraulic lock function of preventer, guarantee that under the situation of former hydraulic control thrashing blowout preventer hydraulic locking device still can safe and reliable work, and accident is taken precautions against in possible trouble.
The technical solution adopted for the present invention to solve the technical problems is: blowout preventer manual hydraulic control locking apparatus is made oil hydraulic cylinder, hydraulic lock, ram preventer, two stop valves, manual hydraulic pressure three-position four-way valve, fuel tank, safety overflow valve, lock shafts by double-action handle, two master hydraulic cylinders, four one-way valves, two big working solution cylinder pressures, two unskilled labourers and is interconnected and form.Described double-action handle is connected with a hinge, and all the other each valve members all are fixed on special-purpose being connected on the support with oil hydraulic cylinder.
The invention has the beneficial effects as follows, adopt combination fluid cylinder hand-hydraulic control system to control former hydraulic pressure locking mechanism action, thereby realize the hand-hydraulic locking of preventer, the hand-hydraulic on ram preventer both sides is controlled synchronous open and close well, can bear bigger closing well load, can finish the locking work of preventer in the short period of time, realized the integrated locking of blowout preventer manual and hydraulic control, overcome that present armstrong's patent locking device operation labor intensity is big, speed is slow, the shortcoming of the unreliable grade of working jam appears, in operation often.
Description of drawings
Fig. 1 adopts the manually structural representation of combination fluid cylinder realization blowout preventer hydraulic locking.
Among the figure, 1, the double-action handle; 2, master hydraulic cylinder; 3, one-way valve; 4, one-way valve; 5, big working solution cylinder pressure; 6, the unskilled labourer makes oil hydraulic cylinder; 7, hydraulic lock; 8, ram preventer; 9, stop valve; 10, the unskilled labourer makes oil hydraulic cylinder; 11, big working solution cylinder pressure; 12, stop valve; 13, manual hydraulic pressure three-position four-way valve; 14, fuel tank; 15, safety overflow valve; 16, one-way valve; 17, master hydraulic cylinder; 18, one-way valve; 19, lock shaft.
Embodiment
Further specify patent of the present invention below by embodiment.
Embodiment:
Its working principle is described below: manual three-position four-way valve 13 is in meta as shown in Figure 1 when blowout preventer hydraulic control system proper functioning.In case the blowout preventer hydraulic control system lost efficacy, when needing closing well, press manual three-position four-way valve 13 handles to the right earlier, make it place position, a left side; With hand double-action handle 1 is moved up and down then, when when pressing down, the piston of the master hydraulic cylinder 2 in double-action handle 1 moving system moves downward, and the piston of master hydraulic cylinder 17 produces and moves upward simultaneously.This moment, one-way valve 4 and one-way valve 18 were closed, one-way valve 3 and one-way valve 16 are opened, hydraulic oil in the master hydraulic cylinder 2 is pressed into the piston left end of big working solution cylinder pressure 5 and the piston right-hand member of big working solution cylinder pressure 11 respectively by one-way valve 3, promotes them to the motion of diagram neutral position; The hydraulic oil of the piston left end of the piston right-hand member of big working solution cylinder pressure 5 and big working solution cylinder pressure 11 then is pressed into the unskilled labourer respectively by oil circuit and does in oil hydraulic cylinder 6 and 10, drive lock shaft 19 on two hydraulic lock respectively to intermediary movements, after closing ram preventer 8, simultaneously by hydraulic lock locking preventer 8; The effect that this moment, one-way valve 4 was closed is to prevent that the hydraulic oil in the master hydraulic cylinder 2 from flowing into fuel tank 14; The effect that one-way valve 18 is closed then is to prevent that the hydraulic oil flow in the master hydraulic cylinder 2 from going into master hydraulic cylinder 17.Meanwhile, the one-way valve of installing on the oil circuit that the preceding piston of addressing master hydraulic cylinder 17 moves upward 16 is opened, and sucks hydraulic oil and enter master hydraulic cylinder 17 from fuel tank 14.
When double-action handle 1 moved upward, one-way valve 4 and one-way valve 18 were opened, and one-way valve 3 and one-way valve 16 are closed.Master hydraulic cylinder 2 sucks hydraulic oil by one-way valve 4 from fuel tank 14; Master hydraulic cylinder 17 then is pressed into the left end of big working solution cylinder pressure 5 and the right-hand member of big working solution cylinder pressure 11 by one-way valve 18 with the hydraulic oil in the master hydraulic cylinder 17, the piston two-way that continues to promote in two main working solution cylinder pressures moves to the neutral position, guarantee that the unskilled labourer makes oil hydraulic cylinder 6 and 10 and obtains hydraulic oil continuously, thereby the lock shaft of realizing driving on two hydraulic lock 19 continues to close up to ram preventer 8 to intermediary movements.
In like manner, in order to open ram preventer 8, spur the handle of manual three-position four-way valve 13 at first left, make it place right position, press two-way function handle 1 then up and down, at this moment, whole system is in similar working state, only this moment big working solution cylinder pressure 5 and piston two end motions to the left and right respectively of working solution cylinder pressure 11 greatly, hydraulic oil is made oil hydraulic cylinder 6 and the unskilled labourer does sucking-off the oil hydraulic cylinder 10 from the unskilled labourer respectively by oil circuit, make the unskilled labourer do piston two end motions to the left and right that oil hydraulic cylinder 6 and unskilled labourer make oil hydraulic cylinder 10, drive lock shaft 19 on two hydraulic lock, remove the ram preventer locking state respectively to the both sides motion.
The effect that the hydraulic system of this composite structure can realize closing, lock ram preventer and open ram preventer.
When the hydraulic system of original control preventer is recovered proper functioning, when needing release and opening preventer, as long as earlier manual three-position four-way valve 13 is placed heavily danger, open stop valve 9 and stop valve 12 pressure releases again, close stop valve 9 and stop valve 12 after the pressure release, after opening original hydraulic control system then, can use the work of original hydraulic pressure lockwork, thereby reach the purpose of open and close well and release, locking preventer.
When operating oil pressure surpasses authorized pressure, can carry out releasing pressure automatically by relief valve 15, guarantee the safety of hydraulic system.
Claims (1)
1, blowout preventer manual hydraulic control locking apparatus, by double-action handle (1), master hydraulic cylinder (2), one-way valve (3), one-way valve (4), big working solution cylinder pressure (5), the unskilled labourer makes oil hydraulic cylinder (6), hydraulic lock (7), ram preventer (8), stop valve (9), the unskilled labourer makes oil hydraulic cylinder (10), big working solution cylinder pressure (11), stop valve (12), manual hydraulic pressure three-position four-way valve (13), fuel tank (14), safety overflow valve (15), one-way valve (16), master hydraulic cylinder (17), one-way valve (18), lock shaft (19) interconnects composition, it is characterized in that, hand moves double-action handle (1), master hydraulic cylinder (2), master hydraulic cylinder (17), big working solution cylinder pressure (5), big working solution cylinder pressure (11), the unskilled labourer makes oil hydraulic cylinder (6), the unskilled labourer makes oil hydraulic cylinder (10) and has been interconnected to constitute combination fluid cylinder system.Described double-action handle (1) is connected with a hinge, and all the other each valve members all are fixed on special-purpose being connected on the support with oil hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100448243A CN101235838A (en) | 2008-02-25 | 2008-02-25 | Blowout preventer manual hydraulic control locking apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100448243A CN101235838A (en) | 2008-02-25 | 2008-02-25 | Blowout preventer manual hydraulic control locking apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101235838A true CN101235838A (en) | 2008-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100448243A Pending CN101235838A (en) | 2008-02-25 | 2008-02-25 | Blowout preventer manual hydraulic control locking apparatus |
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| Country | Link |
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| CN (1) | CN101235838A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481613A (en) * | 2016-08-25 | 2017-03-08 | 北京冶自欧博科技发展有限公司 | A kind of machine liquid dual fail-safe locked hydraulic cylinder |
| CN108691850A (en) * | 2018-07-03 | 2018-10-23 | 武汉海王机电工程技术有限公司 | A kind of super-pressure pressure relief system |
-
2008
- 2008-02-25 CN CNA2008100448243A patent/CN101235838A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481613A (en) * | 2016-08-25 | 2017-03-08 | 北京冶自欧博科技发展有限公司 | A kind of machine liquid dual fail-safe locked hydraulic cylinder |
| CN108691850A (en) * | 2018-07-03 | 2018-10-23 | 武汉海王机电工程技术有限公司 | A kind of super-pressure pressure relief system |
| CN108691850B (en) * | 2018-07-03 | 2019-12-24 | 武汉海王机电工程技术有限公司 | Ultrahigh pressure relief system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080806 |