CN212672543U

CN212672543U - Throttle valve

Info

Publication number: CN212672543U
Application number: CN202021190499.4U
Authority: CN
Inventors: 李军; 杨正跃
Original assignee: MSP Drilex Shanghai Co Ltd
Current assignee: MSP Drilex Shanghai Co Ltd
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-03-09
Anticipated expiration: 2030-06-23

Abstract

The utility model belongs to the technical field of oil development equipment, a choke valve is disclosed, include: the valve body assembly comprises a valve cover and a valve rod; one end of the support is connected to the valve cover, the support comprises a connecting block, and one end of the connecting block is clamped to the valve rod; the driver is arranged at the other end of the bracket, and a piston of the driver is clamped at the other end of the connecting block; and one end of the indicating block is connected to the connecting block, and the other end of the indicating block extends out of the support to indicate the opening degree of the valve. Through the structure, the throttle valve is convenient to install and position, and the opening degree of the valve is indicated accurately.

Description

Throttle valve

Technical Field

The utility model relates to an oil development equipment technical field especially relates to a choke valve.

Background

In the oil exploitation industry, a choke valve is an important component of a Christmas tree and a choke kill manifold because the choke valve can regulate the pressure between the upstream and downstream of a pipeline and control the flow of the downstream pipeline. Generally, as shown in fig. 1, a valve body 1 'of a throttle valve is provided with a plurality of flow holes 11' and the flow area of the valve body 1 'is changed by moving a valve stem 2' up and down, thereby achieving the purpose of throttling and pressure reduction.

Generally, the electro-hydraulic throttle valve is composed of a valve body assembly 10 ', a driver 20 ' and a sensor 30 ', a background control chamber can confirm the opening degree of the valve through an output signal of the sensor 30 ', and a hydraulic system can drive a piston 201 ' of the driver 20 ' to move by supplying oil to the driver 20 ', so that the piston 201 ' drives a valve rod 2 ' to move up and down, and the adjustment of the opening degree of the valve is realized.

At present, a valve rod 2 'and a piston 201' of an existing electro-hydraulic cage sleeve throttle valve are generally connected through screwing, the stroke of the valve is determined by the distance of the screwing meshing of the valve rod 2 'and the piston 201', the distance of the screwing meshing is not easy to control during manufacturing, the stroke of the valve is inaccurate to adjust, the connection and the positioning between the valve rod 2 'and the piston 201' are difficult, and the indication of the opening degree of the valve is inaccurate. The sensor 30' commonly used at present is a mechanical sensor, which indicates the change of the valve opening degree according to the linear change of the gas path pressure caused by the pressure reducing valve, rather than directly indicating the valve opening degree, and the problem of inaccurate valve opening degree indication also exists.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a choke valve, this choke valve is the installation convenient location not only, and the valve aperture is instructed accurately moreover.

To achieve the purpose, the utility model adopts the following technical proposal:

a throttle valve, comprising:

the valve body assembly comprises a valve cover and a valve rod;

one end of the support is connected to the valve cover, the support comprises a connecting block, and one end of the connecting block is clamped to the valve rod;

the driver is arranged at the other end of the bracket, and a piston of the driver is clamped at the other end of the connecting block;

and one end of the indicating block is connected to the connecting block, and the other end of the indicating block extends out of the support to indicate the opening degree of the valve.

Preferably, the connecting block includes first connecting block and the second connecting block that can butt relatively, first connecting block with the butt department of second connecting block is equipped with the screw hole, the screw hole clamp is located first connecting block with between the second connecting block, be equipped with first screw thread on the valve rod, be equipped with the second screw thread on the output head of piston, first screw thread with the second screw thread homoenergetic joint in the screwed hole.

Preferably, the first connecting block is connected to the second connecting block by a connecting screw, and the first thread and the second thread are clamped in the threaded hole.

Preferably, the piston further comprises a displacement sensor, the displacement sensor is connected to the driver, and a measuring end of the displacement sensor is used for measuring the displacement of the piston.

Preferably, a magnetic assembly is disposed on the piston, a measuring end of the displacement sensor passes through the magnetic assembly along a moving direction of the piston and is inserted into the piston, and the magnetic assembly is used for transmitting a displacement signal of the piston to the displacement sensor.

Preferably, the magnetic assembly comprises a magnetic ring, a magnetic ring gasket and a screw, and the screw connects the magnetic ring and the magnetic ring gasket to the piston in sequence.

Preferably, the bracket is provided with a window, and the window is used for installing the connecting block into the bracket.

Preferably, an opening indication board is arranged on the outer wall of the support and is arranged at the indication block and used for indicating the opening degree of the valve.

Preferably, the valve body assembly further comprises a valve body and a valve seat, the valve body is connected to the valve seat through threads, and the valve cover is connected to the valve body through bolts.

Preferably, the valve body assembly further comprises a packing box, and the valve rod is connected in the packing box in a sealing and sliding mode.

The utility model has the advantages that:

the utility model provides a throttle valve, this throttle valve includes valve body assembly, support and driver, the one end of support is connected on the valve bonnet, the driver is installed on the other end of support, the support includes the connecting block, the one end joint of connecting block is on the valve rod of valve body assembly, the other end joint of connecting block is on the piston of driver, not only make the connection of valve rod and piston convenient, but also avoided the screw of valve rod and piston to twist soon to connect, the accurate location of valve rod and piston of being convenient for is favorable to the regulation of valve stroke; the throttle valve also comprises an indicating block, one end of the indicating block is connected to the connecting block, and the indicating block moves along with the movement of the valve rod due to the movement of the connecting block along with the movement of the valve rod, so that the valve opening degree of the throttle valve can be indicated.

Drawings

FIG. 1 is a cross-sectional view of a prior art throttle valve;

FIG. 2 is a cross-sectional view of a throttle valve provided in an embodiment of the present invention;

fig. 3 is a cross-sectional view of a connecting block of a throttle valve according to an embodiment of the present invention;

fig. 4 is a front view of a bracket of a throttle valve according to an embodiment of the present invention;

fig. 5 is an enlarged view at a in fig. 2.

In the figure:

1. a valve body assembly; 11. a valve cover; 12. a valve stem; 13. a valve body; 14. a valve seat; 15. a packing box; 151. sealing the rod; 152. combining and sealing; 16. a throttle valve cartridge; 2. a support; 21. connecting blocks; 211. a first connection block; 212. a second connecting block; 22. a threaded hole; 23. a connecting screw; 24. a window; 25. an opening degree indication board; 3. a driver; 31. a piston; 32. a magnetic component; 321. a magnetic ring; 322. a magnetic ring gasket; 33. an upper cover; 331. punching holes on the upper cover; 34. a cylinder barrel; 35. a lower cover; 351. punching a hole on the lower cover; 4. an indication block; 5. and a displacement sensor.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solutions adopted by the present invention and the technical effects achieved by the present invention clearer, the following will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The utility model provides a throttle valve, as shown in fig. 2, this throttle valve includes valve body assembly 1, support 2, driver 3 and displacement sensor 5, and support 2 connects between valve body assembly 1 and driver 3, and displacement sensor 5 connects on driver 3 for measure the regulating variable of driver 3 to this throttle valve opening. Specifically, valve body assembly 1 includes valve rod 12, and support 2 includes connecting block 21, and driver 3 includes piston 31, and connecting block 21's one end joint in valve rod 12, and other end joint in piston 31 not only make the connection of valve rod 12 and piston 31 convenient, have avoided the screw of valve rod 12 and piston 31 to revolve wrong connection moreover, and the accurate positioning of the valve rod 12 and piston 31 of being convenient for is favorable to the regulation of valve stroke.

In this embodiment, the valve body assembly 1 further includes a valve body 13, a valve seat 14, a throttle valve core 16, a packing box 15 and a valve cover 11, the valve body 13 is connected to the valve seat 14 through threads, the throttle valve core 16 is connected to the valve body 13 in an interference fit manner, the packing box 15 is connected between the valve cover 11 and the valve body 13, and the valve cover 11 is connected to the valve body 13 through bolts and nuts, so that the valve cover 11 seals the packing box 15 on the valve body 13. Preferably, a rod seal 151 and a combined seal 152 are arranged in the packing box 15, and the rod seal 151 and the combined seal 152 are used for supporting and sealing the valve rod 12 together, so that the valve rod 12 is guaranteed to slide in the valve body 13 in a sealing mode.

Preferably, one end of the bracket 2 is connected to the valve cover 11 through a screw, and the other end of the bracket 2 is connected to the driver 3 through a screw, so that the bracket 2 can be conveniently assembled and disassembled in the throttle valve, and the throttle valve can be conveniently installed. In this embodiment, the bracket 2 is provided with a window 24, and the window 24 is used for installing the connecting block 21 into the bracket 2, so that the connecting block 21 is convenient to install. As shown in fig. 3, preferably, the connection block 21 includes a first connection block 211 and a second connection block 212 that can abut against each other, a threaded hole 22 is provided at an abutting position of the first connection block 211 and the second connection block 212, the threaded hole 22 is clamped between the first connection block 211 and the second connection block 212, a first thread is provided on the valve rod 12, a second thread is provided on the output head of the piston 31, and both the first thread and the second thread can be clamped in the threaded hole 22 so as to be connected to the connection block 21. More preferably, the connecting block 21 is provided with a connecting screw 23, and the connecting screw 23 connects the first connecting block 211 to the second connecting block 212, so that the first connecting block 211 and the second connecting block 212 are tightly attached to clamp the first screw and the second screw in the screw hole 22.

In the embodiment, the throttle valve further comprises an indication block 4, one end of the indication block 4 is connected to the connecting block 21, and the other end of the indication block 4 extends out of the bracket 2, so that the indication block 4 moves along with the movement of the valve rod 12 due to the fact that the connecting block 21 can move along with the movement of the valve rod 12, and the valve opening degree of the throttle valve can be indicated. Specifically, the indication block 4 is connected to the connection block 21 through screws, so that the indication block 4 and the connection block 21 can be conveniently detached. As shown in fig. 4, it is preferable that an opening indicator 25 is provided on an outer wall of the bracket 2, the opening indicator 25 is provided adjacent to the indicator block 4, and the indicator block 4 can indicate the opening degree of the throttle valve on the opening indicator 25.

Preferably, the displacement sensor 5 is screwed on the driver 3, the piston 31 is provided with a magnetic assembly 32, a measuring end of the displacement sensor 5 penetrates through the magnetic assembly 32 along the moving direction of the piston 31 and is inserted into the piston 31, and the magnetic assembly 32 can transmit a displacement signal of the piston 31 to the displacement sensor 5. More preferably, the piston 31 is provided with a measuring hole, and the measuring end can be inserted into the measuring hole and relatively moved. As shown in fig. 5, in the present embodiment, the magnetic assembly 32 includes a magnetic ring 321, a magnetic ring gasket 322 and a screw, the screw sequentially connects the magnetic ring 321 and the magnetic ring gasket 322 to the piston 31, the magnetic ring 321 can move along with the movement of the piston 31, so that when the piston 31 moves, the magnetic ring 321 can transmit a signal to the displacement sensor 5.

In this embodiment, the actuator 3 further comprises an upper cover 33, a cylinder 34 and a lower cover 35, the cylinder 34 is sealingly connected between the upper cover 33 and the lower cover 35, and the piston 31 is slidably and sealingly connected to the inner wall of the cylinder 34. Preferably, the upper cover 33 is provided with an upper cover pressing hole 331, the lower cover 35 is provided with a lower cover pressing hole 351, the upper cover pressing hole 331 and the lower cover pressing hole 351 are respectively communicated with two ends of the piston 31, and the upper cover pressing hole 331 and the lower cover pressing hole 351 are used for introducing high-pressure hydraulic oil to drive the piston 31 to move.

The operation of the throttle valve provided by the embodiments of the present invention will be described below.

High-pressure hydraulic oil is introduced from the upper cover pressing hole 331, the high-pressure hydraulic oil pushes the piston 31 to drive the valve rod 12 to move towards the direction for closing the throttle valve, when the indicating block 4 indicates a 0-scale mark in the opening indicating plate 25, the throttle valve is in a full-closed state, the flow passing through the throttle valve is minimum, the displacement sensor 5 detects a displacement signal, and the displacement signal is the full-closed signal of the throttle valve; high-pressure hydraulic oil is introduced from the lower cover pressing hole 351, the high-pressure hydraulic oil pushes the piston 31 to drive the valve rod 12 to move towards the direction of opening the throttle valve, when the indicating block 4 indicates 100% of scale marks in the opening indicating plate 25, the throttle valve is in a full-open state, the flow passing through the throttle valve is the maximum at the moment, the displacement sensor 5 detects a displacement signal, and the displacement signal is the full-open signal of the throttle valve.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A throttle valve, comprising:

the valve body assembly (1), the valve body assembly (1) includes valve gap (11) and valve rod (12);

the valve rod (12) is connected with the valve cover (11) through a connecting block (21), and one end of the connecting block (21) is clamped with the valve rod (12);

the driver (3), the said driver (3) is mounted to another end of the said support (2), the piston (31) of the said driver (3) is blocked and connected to another end of the said joint block (21);

and one end of the indicating block (4) is connected to the connecting block (21), and the other end of the indicating block (4) extends out of the support (2) to indicate the opening degree of the valve.

2. The throttling valve according to claim 1, characterized in that the connecting block (21) comprises a first connecting block (211) and a second connecting block (212) which can be abutted against each other, a threaded hole (22) is formed in the abutted position of the first connecting block (211) and the second connecting block (212), the threaded hole (22) is clamped between the first connecting block (211) and the second connecting block (212), a first thread is arranged on the valve rod (12), a second thread is arranged on the output head of the piston (31), and the first thread and the second thread can be clamped in the threaded hole (22).

3. The throttling valve according to claim 2, characterized in that the first connecting block (211) is connected to the second connecting block (212) by means of a connecting screw (23) clamping the first and second threads in the threaded hole (22).

4. A throttle valve according to claim 1, characterized in that it further comprises a displacement sensor (5), said displacement sensor (5) being connected to said actuator (3), the measuring end of said displacement sensor (5) being adapted to measure the displacement of said piston (31).

5. Throttle valve according to claim 4, characterized in that a magnetic assembly (32) is arranged on the piston (31), the measuring end of the displacement sensor (5) is inserted into the piston (31) through the magnetic assembly (32) in the direction of movement of the piston (31), and the magnetic assembly (32) is used to transmit the displacement signal of the piston (31) to the displacement sensor (5).

6. Throttle valve according to claim 5, characterized in that the magnet assembly (32) comprises a magnet ring (321), a magnet ring washer (322) and screws, which in turn connect the magnet ring (321) and the magnet ring washer (322) to the piston (31).

7. Throttle valve according to claim 1, characterized in that the bracket (2) is provided with a window (24), which window (24) is used for inserting the connecting piece (21) into the bracket (2).

8. Throttle valve according to claim 1, characterized in that an opening indicator (25) is arranged on the outer wall of the bracket (2), said opening indicator (25) being arranged at the indicator block (4) for indicating the valve opening.

9. The throttling valve according to claim 1, characterized in that the valve body assembly (1) further comprises a valve body (13) and a valve seat (14), the valve body (13) is connected to the valve seat (14) by screw threads, and the valve cover (11) is connected to the valve body (13) by bolts.

10. The choke valve according to claim 1, characterized in that the valve body assembly (1) further comprises a packing box (15), the valve stem (12) being sealingly slidably connected in the packing box (15).