CN216142732U

CN216142732U - Subsea tree valve control tool

Info

Publication number: CN216142732U
Application number: CN202121098768.9U
Authority: CN
Inventors: 周克秋; 朱梦秀; 安兴涛
Original assignee: Hangfa Youcai Zhenjiang Titanium Alloy Precision Forming Co ltd
Current assignee: Hangfa Youcai Zhenjiang Titanium Alloy Precision Forming Co ltd
Priority date: 2021-05-20
Filing date: 2021-05-20
Publication date: 2022-03-29
Anticipated expiration: 2031-05-20

Abstract

The utility model discloses an underwater Christmas tree valve control tool. The rotary displacement type piston pump comprises a main piston cylinder with a built-in main piston rod, an interface adapter fixedly installed at the front end of the main piston cylinder and fixedly connected with an interface, and further comprises a rotary displacement driving mechanism, a U-shaped base is arranged outside the main piston cylinder, a ball guide sleeve is arranged between the main piston cylinder and the U-shaped base, a guide sleeve is fixedly installed on the U-shaped base, and the main piston cylinder can move rotationally and linearly relative to the U-shaped base through the guide of the guide sleeve driven by the rotary displacement driving mechanism. The advantages are that: through changing the gravity center position of the tool, when the underwater robot grabs the handle, the interface axis and the valve seat axis can be kept in the same straight line, and meanwhile, the motion resistance is greatly reduced due to the rolling friction of point contact, so that the use reliability is improved.

Description

Subsea tree valve control tool

Technical Field

The utility model relates to a valve operation tool on an underwater Christmas tree, in particular to a valve operation tool of the underwater Christmas tree, and belongs to the technical field of underwater oil exploitation.

Background

The subsea tree requires a workover operation on the tree system due to the plugging of the pipeline caused by the generation of compounds, and a valve control tool is required to open or close the subsea tree valve during the workover process; in order to operate the valve on the Christmas tree, an underwater robot is required to carry a valve operation tool to the valve, the robot fixes the tool on the valve according to instructions, and the fixing mode of the tool is similar to the fixing connection mode between a fire hydrant and a fire hose; the interface tooth socket on the valve operation tool is opposite to the valve seat interface tooth, the tool is pushed into the bottom of the valve seat interface through the small oil cylinder on the tool, the interface on the tool rotates while being pushed to be meshed with the valve seat interface, so that the fixed connection between the valve operation tool and a valve is achieved, then the main piston cylinder is controlled to start working through instructions, the main piston rod moves forwards to push the valve core in the valve to open the valve on the subsea Christmas tree, after the working is completed, the main piston rod returns, then the push rod in the small oil cylinder retreats, and the interface on the tool is led to retreat from the valve seat.

The existing valve operating tool is inconvenient to operate and use and low in reliability due to the fact that the structural design is unreasonable. The patent number ZL 201510733677.0 discloses in the prior art a patent number ZL 201510733677.0, which is named as an invention patent of a movable rotary linear covering tool, and describes a technical means that a hydraulic motor drives a connector to rotate so as to realize the engagement of the connector and a valve connector, and a piston rod in a single-action oil cylinder moves forwards to push a valve core in a valve so as to open a valve on an underwater Christmas tree.

Disclosure of Invention

The utility model aims to solve the technical problem of providing an underwater Christmas tree valve control tool which is simple in structural design, simple and convenient to operate, convenient to butt joint and good in stability.

In order to solve the technical problem, the valve control tool for the underwater Christmas tree comprises a main piston cylinder with a built-in main piston rod, an interface adapter fixedly arranged at the front end of the main piston cylinder and fixedly connected with an interface, and a rotary displacement driving mechanism for driving the main piston cylinder to rotate and reciprocate.

The rear end of the main piston cylinder is fixedly provided with a rear end cover, the ball guide sleeve is tightly pressed and fixed on the outer circumferential surface of the main piston cylinder through the rear end cover, and the guide sleeve is sleeved at the rear part of the rear end cover.

The power execution end of the rotary displacement driving mechanism is fixedly connected with the rear end cover and can drive the rear end cover to drive the main piston cylinder to rotate or linearly move relative to the guide sleeve under the guidance of the guide sleeve.

When the guide groove is unfolded to be planar, the distance between the two parallel lines is set to enable the main piston cylinder to rotate by 45 degrees.

And a plurality of steel balls are distributed on the ball guide sleeve.

The rotary displacement driving mechanism is an oil cylinder, a cylinder body of the oil cylinder is fixedly arranged on the guide sleeve and the U-shaped base, and a push rod of the oil cylinder serves as a power execution end and is fixedly arranged on the rear end cover.

Be provided with the draw-in groove that is used for installing the snap ring on the push rod and install and be used for with the baffle of rear end cap cooperation installation, baffle installation is on the push rod and fix a position through the snap ring, offer the shoulder hole that is used for settling the baffle on the rear end face of rear end cap and offer evenly distributed at the surperficial mounting hole of circumference, be provided with on the baffle with mounting hole complex screw hole, the baffle is settled in the shoulder hole and is passed through the cooperation of screw hole and mounting hole can be with baffle fixed mounting on the rear end cap.

And a handle is arranged on the outer surface of the U-shaped base.

The main piston rod extends out of the interface through the interface adapter.

The utility model has the advantages that:

through changing the gravity center position of the tool, when the underwater robot grabs the handle, the interface axis and the valve seat axis can be kept in the same straight line, meanwhile, because the designed ball guide sleeve is sleeved on the outer wall of the cylinder of the main piston cylinder, the motion of the main piston cylinder is converted into rolling friction in point contact by sliding friction, the motion resistance is greatly reduced, the use reliability is improved, in addition, the guide sleeve is sleeved on the rear end cover, the main piston cylinder can complete back-and-forth movement and axis rotation under the action of the push rod, the butt joint and the fixation with the valve seat interface are completed, then the valve seat valve core is pushed by the main piston rod, the opening or the closing of the valve is completed, the whole structure is simpler, the installation is more convenient, the requirements on an underwater robot system are reduced, and the use reliability of the robot is greatly improved.

Drawings

FIG. 1 is a schematic cross-sectional view of a subsea tree valve manipulation tool of the present invention;

FIG. 2 is a schematic front view of the rear end cap of the present invention;

FIG. 3 is a schematic cross-sectional view of a rear end cap according to the present invention;

FIG. 4 is a schematic perspective view of the guide sleeve of the present invention;

FIG. 5 is a schematic perspective view of the ball guide sleeve according to the present invention;

in the figure: 1. the hydraulic oil cylinder comprises a connector, 2, a connector adapter, 3, a main piston cylinder, 4, a handle, 5, a ball guide sleeve, 6, a guide sleeve, 7, an oil cylinder, 8, a push rod, 9, a baffle, 10, a snap ring, 11, a rear end cover, 12, a U-shaped base, 13, a main piston rod, 14, a pin shaft, 15, a mounting hole, 16, a guide groove, 17, a ball, 18, a stepped hole, 19, a first hydraulic oil port and 20, a second hydraulic oil port.

Detailed Description

The subsea tree valve operation tool of the present invention is described in further detail below with reference to the accompanying drawings and the detailed description.

As shown in the figure, the valve control tool for the underwater Christmas tree comprises a main piston cylinder 3, a main piston rod 13 positioned in the main piston cylinder and an interface adapter 2 fixedly connected with an interface 1, wherein the interface 1 and the interface adapter 2 are connected through a bolt, through holes matched with the main piston rod 13 are simultaneously formed in the centers (axes) of the interface 1 and the interface adapter 2, the interface adapter 2 is fixedly arranged at the front end of the main piston cylinder 3, the main piston rod 13 extends out of the interface 1 through the through holes of the interface adapter 2, a plurality of sealing rings are arranged between the interface adapter 2 and the main piston rod 13, a sealing ring is also arranged between the interface adapter 2 and the main piston cylinder 3, a rear end cover 11 is fixedly arranged at the rear end of the main piston cylinder 3 (the left side direction shown in figure 1 is defined as the front end, the right side direction shown in figure 1 is defined as the rear end), the hydraulic oil port II 20 is arranged on the front cavity of the main piston cylinder 3, the hydraulic oil port I19 is arranged on the rear end cover 11 and is positioned on the rear cavity of the main piston cylinder 3, the rear end cover 11 is provided with a flange, round holes for connecting the main piston cylinder 3 through bolts are distributed on the flange, a positioning step is arranged at the front end of the circumferential surface of the main piston cylinder 3, a ball guide sleeve 5 which is pressed against the positioning step is sleeved on the outer circumferential surface of the main piston cylinder 3, a plurality of steel balls 17 are distributed on the ball guide sleeve 5, the ball guide sleeve 5 is pressed and fixed on the outer circumferential surface of the main piston cylinder 3 after the rear end cover 11 is fixedly arranged on the main piston cylinder 3 so as to limit the axial movement of the ball guide sleeve 5, the U-shaped base 12 with the cross section shape as shown in figure 1 is further included, a handle 4 is connected on the outer surface of the U-shaped base 12 through bolts, and the main piston cylinder 3 provided with the ball guide sleeve 5 and the rear end cover 11 is sleeved in the U-shaped base 12 so as to enable the ball guide sleeve 5 to enable the ball guide sleeve 11 to be arranged in the U-shaped base 12 The 5 is positioned between the main piston cylinder 3 and the U-shaped base 12, the rear end cover 11 is sleeved with a guide sleeve 6 in clearance fit with the rear end cover, the guide sleeve 6 is fixedly installed on the rear end face of the U-shaped base 12 and is sleeved on the periphery of the rear part of the rear end cover 11 to enable the guide sleeve to be positioned right behind the main piston rod 13, meanwhile, the rear end face of the U-shaped base 12 is fixedly provided with a rotary displacement driving mechanism, the guide sleeve 6 is fixedly pressed between the front end face of the rotary displacement driving mechanism and the rear end face of the U-shaped base 12, and the main piston cylinder 3 can do rotary motion and do front-back linear reciprocating motion relative to the U-shaped base 12 through the driving of the rotary displacement driving mechanism and the fit of the guide sleeve 6 and the rear end cover 11.

Furthermore, two guide grooves 16 which are symmetrically distributed are formed in the guide sleeve 6, two pin shafts 14 which are symmetrically distributed are arranged on the circumferential surface of the rear end cover 11, the two pin shafts 14 are respectively matched with the two guide grooves 16, so that the pin shafts 14 on the rear end cover 11 can be clamped in the guide grooves 16, when the guide grooves 16 are unfolded to be planar, the distance between the two parallel lines is 1/8 of the circumference of the outer wall of the cylinder of the rear end cover 11, namely, the main piston cylinder rotates by 45 degrees, as can be seen from the figure, the guide grooves 16 are composed of a section of inclined curve transition guide section and a section of axially arranged straight line section, and the power execution end of the rotary displacement driving mechanism is fixedly connected with the rear end cover 11 and can drive the main piston cylinder 3 to rotate or linearly move relative to the guide sleeve 6 under the guide of the guide sleeve 6 through the drive of the rotary displacement driving mechanism.

Furthermore, the rotary displacement driving mechanism is an oil cylinder 7, a cylinder body of the oil cylinder 7 is fixedly installed on the guide sleeve 6 and the U-shaped base 12, a push rod 8 of the oil cylinder serves as a power execution end and is fixedly installed on the rear end cover 11, a clamping groove for installing a clamping ring 10 and a baffle 9 for being installed in a matched mode with the rear end cover 11 are formed in the push rod 8, the baffle 9 is installed on the push rod 8 and is positioned through the clamping ring, a stepped hole for installing the baffle 9 is formed in the rear end face of the rear end cover 11, four conical installation holes 15 are uniformly distributed in the circumferential surface of the baffle 9, four threaded holes matched with the installation holes are formed in the circumferential surface of the baffle 9, the baffle 9 is installed in the stepped hole, the baffle 9 is fixedly installed on the rear end cover 11 through the matching of the threaded holes and the installation holes through bolts, and the installation rear clamping ring 10 is fixed in a stepped hole 18 formed in the rear end cover 11 through the baffle 9;

the working principle is as follows:

after assembly is completed, the axes of the tool interface 1, the main piston cylinder 3, the U-shaped base 12 and the small oil cylinder 7 are kept on the same axis, and the underwater robot carries the tool to a Christmas tree valve, so that the axis of the tool interface 1 is aligned with the axis of the interface on the valve seat; the oil cylinder 7 firstly pushes the main piston cylinder to move forwards for a certain distance, the joint 1 can be inserted into the bottom of the valve seat joint, and then the main piston cylinder 3 rotates for 45 degrees under the action of the guide sleeve 6, so that the joint 1 and the valve seat joint are meshed and locked. The hydraulic station that carries on the underwater robot injects hydraulic oil into main piston cylinder 3 through hydraulic fluid port 19, and drive main piston rod 13 forward movement and then open the valve on the subsea tree, and in a similar way, the hydraulic station that carries on the underwater robot injects hydraulic oil into main piston cylinder 3 through hydraulic fluid port 20 No. two, and drive main piston rod 13 backward movement and then close the valve on the subsea tree.

It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.

Claims

1. The utility model provides an instrument is controld to production tree valve under water, including built-in main piston cylinder (3) and fixed mounting that have main piston rod (13) in main piston cylinder front end and interface adapter (2) of fixedly connected with interface (1), its characterized in that: the device is characterized by further comprising a rotary displacement driving mechanism for driving the main piston cylinder (3) to rotate and reciprocate, a U-shaped base (12) is arranged outside the main piston cylinder (3), a ball guide sleeve (5) is arranged between the main piston cylinder (3) and the U-shaped base (12), a guide sleeve (6) which is located right behind the main piston rod (13) and matched with the main piston rod (13) is fixedly installed on the U-shaped base (12), and the main piston cylinder (3) can rotate and move linearly relative to the U-shaped base (12) through the guide of the guide sleeve (6) under the driving of the rotary displacement driving mechanism.

2. The subsea tree valve manipulation tool of claim 1, wherein: the rear end of the main piston cylinder (3) is fixedly provided with a rear end cover (11), the ball guide sleeve (5) is pressed and fixed on the outer circumferential surface of the main piston cylinder (3) through the rear end cover (11), and the guide sleeve (6) is sleeved on the rear portion of the rear end cover (11).

3. The subsea tree valve manipulation tool of claim 2, wherein: the guide sleeve (6) is provided with two guide grooves (16), the circumferential surface of the rear end cover (11) is provided with two pin shafts (14) which are respectively matched with the two guide grooves (16), and the power execution end of the rotary displacement driving mechanism is fixedly connected with the rear end cover (11) and can drive the rear end cover (11) to drive the main piston cylinder (3) to rotate or linearly move relative to the guide sleeve (6) under the guide of the guide sleeve (6) through the drive of the rotary displacement driving mechanism.

4. The subsea tree valve manipulation tool of claim 3, wherein: when the guide groove (16) is unfolded to be planar, the distance between the two parallel lines is set to enable the main piston cylinder to rotate by 45 degrees.

5. The subsea tree valve manipulation tool of claim 2, 3, or 4, wherein: and a plurality of steel balls (17) are distributed on the ball guide sleeve (5).

6. The subsea tree valve manipulation tool of claim 5, wherein: the rotary displacement driving mechanism is an oil cylinder (7), a cylinder body of the oil cylinder (7) is fixedly installed on the guide sleeve (6) and the U-shaped base (12), and a push rod (8) of the oil cylinder serves as a power execution end and is fixedly installed on the rear end cover (11).

7. The subsea tree valve manipulation tool of claim 6, wherein: be provided with the draw-in groove that is used for installing snap ring (10) on push rod (8) and install baffle (9) that are used for installing with rear end cap (11) cooperation, install on push rod (8) and fix a position through the snap ring baffle (9), offer the shoulder hole that is used for settling baffle (9) and offer evenly distributed at the surperficial mounting hole (15) of circumference on the rear end face of rear end cap (11), be provided with on baffle (9) with mounting hole complex screw hole, baffle (9) are settled in the shoulder hole and are passed through the cooperation of screw hole and mounting hole can be with baffle (9) fixed mounting on rear end cap (11).

8. The subsea tree valve manipulation tool of claims 1, 2, 3, 4, 6, or 7, wherein: and a handle (4) is arranged on the outer surface of the U-shaped base (12).

9. The subsea tree valve manipulation tool of claim 8, wherein: the main piston rod (13) extends out of the interface (1) through the interface adapter (2).