CN207554010U - A kind of wellhead assembly valve allowing pressurized maintenance device - Google Patents
A kind of wellhead assembly valve allowing pressurized maintenance device Download PDFInfo
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- CN207554010U CN207554010U CN201721538837.7U CN201721538837U CN207554010U CN 207554010 U CN207554010 U CN 207554010U CN 201721538837 U CN201721538837 U CN 201721538837U CN 207554010 U CN207554010 U CN 207554010U
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- fluid cylinder
- column
- valve
- pressing plate
- oil inlet
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Abstract
The utility model provides a kind of wellhead assembly valve allowing pressurized maintenance device, including pressing plate A, pressing plate B, column A, column B, fluid cylinder, high-pressure stop valve, fluid cylinder lower flange；The fluid cylinder, including oil inlet under oil inlet on internal liquid cylinder piston bar, fluid cylinder and fluid cylinder, it is characterized in that, the liquid cylinder piston bar is the mandrel of fluid cylinder, it is middle orifice, through entire fluid cylinder, one end is equipped with hydraulic blocking device, and the other end passes through pressing plate lock nut and fix in the middle part of pressing plate B, port is piston rod oil inlet, and is connected with high-pressure stop valve；The hydraulic blocking device is equipped with stripper rubber；The fluid cylinder lower flange is mounted on the lower part of fluid cylinder, and the valve with that need to repair is connect.The utility model is simple in structure, safe and efficient, can quickly realize to there is the repair of hidden danger high pressure valve, hydraulic oil is effectively prevent to leak outside, it is ensured that construction safety reduces pollution of the petroleum gas to environment.
Description
Technical field
The utility model is related to the maintenance tools of petroleum gas well head device, and in particular to a kind of wellhead assembly valve band
Pressurized maintenance device.
Background technology
In the production process of petroleum gas, the high pressure valve of collecting device is in the burn into medium of petroleum gas
Solid particle wash away, in operating process under the abrasion of sealing element, inner part damage, leakage easily occurs, so as to cause peace
Full accident simultaneously causes environmental pollution；It must timely be repaired, prevent the generation of safety accident, it appears be even more important.
The blocking of current existing workover tool with pressure is in the following ways：(1) mechanical seal makes blanking plug by pressure difference
Rubber expands, so as to fulfill sealing；(2) hydraulic pressure blocks, and expands blanking plug rubber using hydraulic pressure, carries out internal blocking；More than
Two methods are during blocking, because when pressure difference reason and hydraulic blocking device ball-and-seat sealing structure problem cannot be guaranteed longer
Between steady operation, be easy to cause closure failure.
In addition, in maintenance process, because maintenance tool is not fixed effectively, safety wind is brought to maintenance construction
Danger.
Invention content
For shortcoming of the prior art, the utility model provides a kind of fix and the valve of antiseep dimension with pressure
Repair tool.The utility model is not only safe and reliable, effectively prevent the generation of safety accident, and solves high-pressure well mouth valve dimension
It repaiies in construction because maintenance of valve fails caused by blocking reason the problem of.
For above-mentioned purpose, technical solutions of the utility model are as follows：
A kind of wellhead assembly valve allowing pressurized maintenance device, including pressing plate A (1), pressing plate B (4), column A (2), column B
(15), fluid cylinder (3), high-pressure stop valve (5), fluid cylinder lower flange (12)；The fluid cylinder (3), including internal liquid cylinder piston bar (8),
Oil inlet (10) under oil inlet (9) and fluid cylinder on fluid cylinder, which is characterized in that
The liquid cylinder piston bar (8) is the mandrel of fluid cylinder (3), is middle orifice, through entire fluid cylinder (3), one end is equipped with
Hydraulic blocking device (20), the other end pass through pressing plate lock nut (7) and fix in the middle part of pressing plate B (4), and port is piston rod oil inlet
Mouth (6), and it is connected with the high-pressure stop valve (5)；The hydraulic blocking device (20) is equipped with stripper rubber (21)；The fluid cylinder
Lower flange (12) is mounted on the lower part of fluid cylinder (3), and the valve with that need to repair (16) is connect.
Further, the column A (2) and column B (15) parallel shelfs are in valve (16) both sides that need to be repaired；The pressing plate
A (1) is fixed on the column A (2) and column B (15) one end, and the pressing plate B (4) is fixed on the column A (2) and column B
(15) other end, and pass through external compression nut (13) and interior clamp nut (14) fixation.
Further, fluid cylinder (3) lower part is equipped with drain, and emptying valve (11) is connected with by screw thread.
Further, oil inlet (9) oil inlet (10) under fluid cylinder shell upper, the fluid cylinder is located on the fluid cylinder
Fluid cylinder outer casing underpart is closely located to emptying valve (11).
Further, oil inlet (10) and the liquid of high pressure liquid pressure oil can be provided under oil inlet (9) and fluid cylinder on the fluid cylinder
Press the high-pressure oil pipe connection of work station.
Advantageous effect：The utility model safe, efficient can be realized to there is a repair of hidden danger high pressure valve, and when construction can
The axial displacement of special blanking plug, the channel for having simultaneously closed off internal high pressure hydraulic oil are prevented, prevents hydraulic oil from leaking outside, ensure that
Blanking plug being capable of steady operation, it is ensured that construction safety reduces pollution of the petroleum gas to environment.What the utility model used
Hydraulic pressure device for plugging can effectively avoid the situation of blanking plug seal failure due to its internal ball-and-seat oil leak, increase sealed reliable
Property.
Description of the drawings
Fig. 1 is utility model works schematic diagram.
Fig. 2 is the structure diagram of the utility model high-pressure stop valve.
Fig. 3 is the structure diagram on the utility model fluid cylinder top.
Attached drawing identifies：
1- pressing plates A, 2- column A, 3- fluid cylinder, 4- pressing plates B, 5- high-pressure stop valve, 6- piston rod oil inlets, 7- pressing plates lock
Cap, 8- liquid cylinder piston bars, oil inlet on 9- fluid cylinders, oil inlet under 10- fluid cylinders, 11- emptying valves, 12- fluid cylinder lower flanges, 13-
External compression nut, clamp nut in 14-, the valve that 15- columns B, 16- need to be repaired, 17- well head four-ways, the left casing valve of 18- well heads
Door, 19- bolts, 20- hydraulic blocking devices, 21- stripper rubbers.
Specific embodiment
Illustrate the utility model referring to specific embodiment.It will be appreciated by those skilled in the art that these are implemented
Example is merely to illustrate the utility model, does not limit the scope of the utility model in any way.
Embodiment 1
A kind of wellhead assembly valve allowing pressurized maintenance device, as shown in Figure 1, including pressing plate A (1), pressing plate B (4), column A
(2), column B (15), fluid cylinder (3), high-pressure stop valve (5), fluid cylinder lower flange (12)；The column A (2) and column B (15) are flat
Row frame is in valve (16) both sides that need to be repaired；The pressing plate A (1) is fixed on the column A (2) and column B (15) one end, described
Pressing plate B (4) is fixed on the column A (2) and column B (15) other end, and passes through external compression nut (13) and interior clamp nut
(14) it is fixed.Fluid cylinder (3) lower part is equipped with drain, and emptying valve (11) is connected with by screw thread；The fluid cylinder lower flange
(12) mounted on the lower part of fluid cylinder (3), and the valve with that need to repair (16) is connect, and the left sleeve valve of well head (18) flange is fixed on
Pressing plate A (1).
As shown in Fig. 2 and Fig. 1, fluid cylinder (3) including under oil inlet (9) on internal liquid cylinder piston bar (8), fluid cylinder and fluid cylinder into
Hydraulic fluid port (10)；The liquid cylinder piston bar (8) is the mandrel of fluid cylinder (3), is middle orifice, through entire fluid cylinder (3), one end is equipped with
Hydraulic blocking device (20), the other end pass through pressing plate lock nut (7) and fix in the middle part of pressing plate B (4), and port is piston rod oil inlet
Mouth (6), and it is fixed with the high-pressure stop valve (5)；Oil inlet (9) is positioned at fluid cylinder shell upper, the fluid cylinder on the fluid cylinder
Lower oil inlet (10) is corresponding with emptying valve (11) positioned at fluid cylinder outer casing underpart.
As shown in figure 3, fluid cylinder lower flange (12) with that need to repair valve (16) flanged joint, is tensed with bolt (19)；Hydraulic pressure
Blanking plug (20) is equipped with stripper rubber (21), is expanded in well head four-way (17) inboard aperture, seals petroleum gas channel.
The workflow of the utility model：
Installation：Column A (2), column B (15) are fixed on wellhead assembly both sides, and fluid cylinder lower flange (12) is with that need to repair valve
(16) flanged joint, pressing plate A (1) are fixed with the left sleeve valve of well head (18) flange, then by liquid cylinder piston bar (8) across pressing plate B
(4) it is and fixed with pressing plate lock nut (7), pressing plate A (1) and pressing plate B (4) are finally individually fixed in column A (2) and column B (15)
Both ends.
Repair：The emptying valve (11) on fluid cylinder (3) is closed, the valve (16) that need to be repaired is opened, to oil inlet on fluid cylinder
(9) oiling, liquid cylinder piston bar (8) push hydraulic blocking device (20) to blocking position；Then piston rod oil inlet (6) connection oil pump
Oil pipe opens high-pressure stop valve (5), injects hydraulic oil, expands hydraulic blocking device rubber (21), inside well top sealing device
Petroleum gas；Finally open emptying valve (11), emptying hydraulic blocking device (20) top to the stone in the annular space of fluid cylinder (3) lower part
Oil or natural gas, detect the sealing effect of blanking plug, it is to be sealed it is good after, closure piston bar oil inlet valve (5) blocks up hydraulic pressure
Device (20) steady operation is filled in, the valve internal no pressure repaired is needed at this time, spot repair operation can be carried out.
Claims (5)
1. a kind of wellhead assembly valve allowing pressurized maintenance device, including pressing plate A, pressing plate B, column A, column B, fluid cylinder, high-pressure stop
Valve, fluid cylinder lower flange；The fluid cylinder, including oil inlet under oil inlet on internal liquid cylinder piston bar, fluid cylinder and fluid cylinder, feature exists
In,
The liquid cylinder piston bar is the mandrel of fluid cylinder, is middle orifice, through entire fluid cylinder, one end is equipped with hydraulic blocking device, separately
One end passes through pressing plate lock nut and fixes in the middle part of pressing plate B, and port is piston rod oil inlet, and is connected with the high-pressure stop
Valve；The hydraulic blocking device is equipped with stripper rubber；The fluid cylinder lower flange is mounted on the lower part of fluid cylinder, and the valve with that need to repair
Door connection.
2. wellhead assembly valve allowing pressurized maintenance device according to claim 1, which is characterized in that the column A and column B
Parallel shelf is in the valve both sides that need to be repaired；The pressing plate A is fixed on the column A and column B one end, and the pressing plate B is fixed on
The column A and the column B other ends, and pass through external compression nut and interior clamp nut is fixed.
3. wellhead assembly valve allowing pressurized maintenance device according to claim 1, which is characterized in that the fluid cylinder lower part is equipped with
Drain is connected with emptying valve by screw thread.
4. wellhead assembly valve allowing pressurized maintenance device according to claim 1, which is characterized in that oil inlet on the fluid cylinder
Positioned at fluid cylinder shell upper, oil inlet is located at fluid cylinder outer casing underpart under the fluid cylinder, is closely located to emptying valve.
5. wellhead assembly valve allowing pressurized maintenance device according to claim 1, which is characterized in that oil inlet on the fluid cylinder
It is connect with oil inlet under fluid cylinder with the high-pressure oil pipe for the hydraulic workstation that can provide high pressure liquid pressure oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721538837.7U CN207554010U (en) | 2017-11-09 | 2017-11-09 | A kind of wellhead assembly valve allowing pressurized maintenance device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721538837.7U CN207554010U (en) | 2017-11-09 | 2017-11-09 | A kind of wellhead assembly valve allowing pressurized maintenance device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207554010U true CN207554010U (en) | 2018-06-29 |
Family
ID=62680328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721538837.7U Active CN207554010U (en) | 2017-11-09 | 2017-11-09 | A kind of wellhead assembly valve allowing pressurized maintenance device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207554010U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372471A (en) * | 2018-11-29 | 2019-02-22 | 美钻深海能源科技研发（上海）有限公司 | A kind of wellheadpressure valve switch failure maintenance of equipment and its method |
-
2017
- 2017-11-09 CN CN201721538837.7U patent/CN207554010U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372471A (en) * | 2018-11-29 | 2019-02-22 | 美钻深海能源科技研发（上海）有限公司 | A kind of wellheadpressure valve switch failure maintenance of equipment and its method |
| CN109372471B (en) * | 2018-11-29 | 2023-09-26 | 美钻深海能源科技研发（上海）有限公司 | Wellhead pressurized valve switch failure maintenance equipment and method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 710000 Room 10509, Room 1, Building 1, Baoyilongji Center, Fengcheng Eighth Road, Xi'an Economic and Technological Development Zone, Shaanxi Province Patentee after: Shaanxi Fubo Petroleum Engineering Co., Ltd. Address before: 710000 Room 10509, Room 1, Building 1, Baoyilongji Center, Fengcheng Eighth Road, Xi'an Economic and Technological Development Zone, Shaanxi Province Patentee before: Xi'an Hongtai oil and gas well technical service Co., Ltd. |