CN219159589U

CN219159589U - Gate valve for christmas tree

Info

Publication number: CN219159589U
Application number: CN202320222068.9U
Authority: CN
Inventors: 王建国; 战启海; 戴金雨
Original assignee: Karamay Sino German Valve Co ltd
Current assignee: Karamay Sino German Valve Co ltd
Priority date: 2023-02-15
Filing date: 2023-02-15
Publication date: 2023-06-09
Anticipated expiration: 2033-02-15

Abstract

The utility model relates to the technical field of christmas trees, in particular to a novel christmas tree gate valve, which comprises a valve body, a hand wheel, a valve rod and a gate plate, wherein the valve body comprises a gate plate cavity, the gate plate is vertically arranged in the gate plate cavity, elastic valve seats for compensating abrasion are arranged at two sides of the gate plate, and inclined holes which are communicated with each other and used for pressure relief are arranged between the lower part of the gate plate cavity and a transverse pipeline in the valve body; according to the utility model, through the elastic valve seat, after the elastic valve seat and the flashboard are worn, the compression spring can squeeze the sealing valve seat to approach to the part for compensating the wear along the valve seat groove, so that the rectangular block is always in sealing connection with the sealing valve seat, and the service life of the gate valve is prolonged.

Description

Gate valve for christmas tree

Technical Field

The utility model relates to the technical field of christmas trees, in particular to a novel christmas tree gate valve.

Background

Christmas trees are wellhead devices used to recover oil, such as from blow wells and mechanical wells. The oil-gas well is mainly used for controlling and regulating oil-gas production, and is formed from oil-pipe hanger, several gate valves and three-way or four-way valve, and is directly mounted on the sleeve head.

At present, the gate valve commonly used in petroleum mining christmas tree is mainly assembled by valve body, valve seat, flashboard, valve rod, hand wheel and other components, the tight contact between flashboard and valve seat realizes internal and external sealing, prevents oil and gas leakage, and the general gate valve drives the valve rod to rotate through rotating the hand wheel, and the pivoted valve rod drives the flashboard of threaded connection below to lift away from or be close to the valve seat, thereby realizing the switch of gate valve, but under high temperature, the valve seat and flashboard are extremely easy to produce friction damage, and the general gate valve can not compensate the worn part, so that the sealing performance of the gate valve is greatly reduced. In view of this, we propose a new type of christmas tree gate valve.

Disclosure of Invention

In order to make up for the defects, the utility model provides a novel christmas tree gate valve.

The technical scheme of the utility model is as follows:

the novel christmas tree gate valve comprises a valve body, a hand wheel, a valve rod and a gate plate, wherein the valve body comprises a gate plate cavity, the gate plate is vertically arranged in the gate plate cavity, and elastic valve seats for compensating abrasion are arranged on two sides of the gate plate;

and inclined holes which are communicated with each other and used for pressure relief are formed between the lower part of the flashboard cavity and the transverse pipeline in the valve body.

Preferably, the valve body is composed of a fixed block and two transverse pipelines, and the flashboard cavity is arranged in the fixed block.

Preferably, the two transverse pipelines are respectively arranged at the left side and the right side of the fixed block, and the two transverse pipelines are mutually communicated with the flashboard cavity.

Preferably, a through hole is formed above the fixed block, and the flashboard cavity and the through hole are communicated with each other.

Preferably, the left and right sides of flashboard chamber all is equipped with the disk seat groove of intercommunication each other, the disk seat groove with horizontal pipeline corresponds each other, elasticity disk seat all install in the disk seat inslot.

Preferably, the lower end of the valve rod is provided with threads and is installed in the flashboard, and the upper end of the valve rod penetrates through the through hole and is installed on the hand wheel.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, after the elastic valve seat and the flashboard are worn, the compression spring can squeeze the sealing valve seat to approach the worn-out compensating part along the valve seat groove, so that the rectangular block and the sealing valve seat are always in sealing connection, the service life of the gate valve is prolonged, when the rectangular block is positioned at the lowest part of the flashboard cavity, the round hole on the rectangular block can be far away from the transverse pipeline, the rectangular block completely intercepts the two transverse pipelines at two sides, and when the rectangular block is gradually lowered, oil and gas in the flashboard cavity below the rectangular block can be conveyed into the communicated transverse pipeline through the inclined hole, so that the pressure of the flashboard cavity below the rectangular block is not increased due to the reduction of space, and the rotation of the hand wheel is kept smooth.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a partial cutaway view of the present utility model;

FIG. 3 is a partial cutaway view of a valve body of the present utility model;

FIG. 4 is a schematic view of a shutter structure according to the present utility model;

FIG. 5 is a schematic view of the structure of the elastic valve seat of the present utility model.

In the figure:

1. a valve body; 11. a fixed block; 12. a transverse duct; 13. perforating; 14. a flashboard cavity; 15. a valve seat groove; 16. inclined holes;

2. a hand wheel;

3. a valve stem;

4. a flashboard; 41. rectangular blocks; 42. a threaded hole; 43. a round hole;

5. an elastic valve seat; 51. a compression spring; 52. sealing the valve seat.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1-5, the present utility model is described in detail by the following embodiments:

the novel christmas tree gate valve comprises a valve body 1, the valve body 1 is composed of a fixed block 11 and two transverse pipelines 12, a gate cavity 14 is arranged in the fixed block 11, the two transverse pipelines 12 are respectively arranged on the left side and the right side of the fixed block 11, the two transverse pipelines 12 and the gate cavity 14 are mutually communicated, a through hole 13 is arranged above the fixed block 11, the gate cavity 14 and the through hole 13 are mutually communicated, an inclined hole 16 which is mutually communicated and used for pressure relief is arranged between the lower part of the gate cavity 14 and the transverse pipelines 12, valve seat grooves 15 which are mutually communicated are respectively arranged on the left side and the right side of the gate cavity 14, the valve seat grooves 15 are mutually corresponding to the transverse pipelines 12, and when the rectangular block 41 descends gradually, oil and gas in the gate cavity 14 below the rectangular block 41 can be conveyed into the communicated transverse pipelines 12 through the inclined hole 16, so that the pressure of the gate cavity 14 below the rectangular block 41 does not rise due to the reduction of space, and the rotation of the hand wheel 2 is kept smooth.

In this embodiment, the shutter 4 is slidably mounted in the vertical direction in the shutter cavity 14, the shutter 4 is formed by a rectangular block 41, a threaded hole 42 is formed in the rectangular block 41, a round hole 43 communicating in the left-right direction is formed below the rectangular block 41, the round hole 43 and the two transverse pipelines 12 can be mutually communicated, the outer surface of the rectangular block 41 and the inner wall of the shutter cavity 14 are mutually contacted, the valve rod 3 can be driven to rotate clockwise or anticlockwise by rotating the hand wheel 2, and the rectangular block 41 slidably mounted up and down can be driven by the valve rod 3 rotating clockwise or anticlockwise.

In this embodiment, the valve rod 3 is installed in the threaded hole 42 on the rectangular block 41, the thread is provided on the lower end surface of the valve rod 3, the thread is installed in the gate 4, the upper end of the valve rod 3 passes through the through hole 13, the hand wheel 2 is fixedly installed on the valve seat groove 15, the elastic valve seat 5 is installed in the valve seat groove 15, the elastic valve seat 5 is composed of the compression spring 51 and the sealing valve seat 52, one end of the compression spring 51 is fixedly installed on one side of the valve seat groove 15, the other end of the compression spring 51 is fixedly installed on the sealing valve seat 52, the outer surface of the sealing valve seat 52 and the inner wall of the valve seat groove 15 are in contact and seal, and the corresponding positions of one side of the sealing valve seat 52 and the rectangular block 41 are mutually bonded and sealed, after the elastic valve seat 5 and the gate 4 wear, the compression spring 51 can squeeze the sealing valve seat 52 to be close to the parts compensating for wear along the valve seat groove 15, so that the sealing connection between the rectangular block 41 and the sealing valve seat 52 is always maintained, thereby the service life of the gate valve is increased.

In this embodiment, when the gate valve is used, the hand wheel 2 is rotated to drive the valve rod 3 to rotate clockwise or anticlockwise, the valve rod 3 which rotates clockwise or anticlockwise can drive the rectangular block 41 which is installed in a vertically sliding manner to ascend or descend, when the round hole 43 of the rectangular block 41 and the two transverse pipelines 12 are mutually communicated, the two transverse pipelines 12 on two sides can pass through oil and gas, when the rectangular block 41 is located at the lowest part of the gate valve cavity 14, the round hole 43 on the rectangular block 41 can be far away from the transverse pipelines 12, the rectangular block 41 can completely intercept the two transverse pipelines 12 on two sides, and when the rectangular block 41 is gradually descended, the oil and gas in the gate valve cavity 14 below the rectangular block 41 can be conveyed into the communicated transverse pipelines 12 through the inclined hole 16, so that the pressure of the gate valve cavity 14 below the rectangular block 41 is not ascended due to the reduction of space, the rotation of the hand wheel 2 is kept smooth, and after the elastic valve seat 5 and the gate valve 4 are generated, the compression spring 51 can squeeze the sealing valve seat 52 to be close to the parts which compensate abrasion along the valve seat groove 15, so that the service life of the sealing valve seat 52 is always kept in a connection between the rectangular block 41 and the sealing valve seat 52.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a novel christmas tree gate valve, includes valve body (1), hand wheel (2), valve rod (3), flashboard (4), including flashboard chamber (14) in valve body (1), flashboard (4) vertical direction install in flashboard chamber (14), its characterized in that: elastic valve seats (5) for compensating abrasion are arranged on two sides of the flashboard (4);

and inclined holes (16) which are communicated with each other and used for pressure relief are arranged between the lower part of the flashboard cavity (14) and the transverse pipeline (12) in the valve body (1).

2. The novel christmas tree gate valve of claim 1, wherein: the valve body (1) is composed of a fixed block (11) and two transverse pipelines (12), and the flashboard cavity (14) is arranged in the fixed block (11).

3. The novel christmas tree gate valve of claim 2, wherein: the two transverse pipelines (12) are respectively arranged at the left side and the right side of the fixed block (11), and the two transverse pipelines (12) are communicated with the flashboard cavity (14).

4. The novel christmas tree gate valve of claim 2, wherein: and a through hole (13) is formed above the fixed block (11), and the flashboard cavity (14) and the through hole (13) are mutually communicated.

5. The novel christmas tree gate valve of claim 2, wherein: the left side and the right side of flashboard chamber (14) all are equipped with disk seat groove (15) of intercommunication each other, disk seat groove (15) with horizontal pipeline (12) correspond each other, elasticity disk seat (5) all install in disk seat groove (15).

6. The novel christmas tree gate valve of claim 1, wherein: the lower end of the valve rod (3) is provided with threads and is arranged in the flashboard (4), and the upper end of the valve rod (3) penetrates through the perforation (13) and is arranged on the hand wheel (2).