CN218912842U

CN218912842U - Shell and blowout preventer

Info

Publication number: CN218912842U
Application number: CN202223191724.8U
Authority: CN
Inventors: 黄金干; 史成军; 沈楠楠; 王微
Original assignee: Yancheng Shenhua Machinery Manufacturing Co ltd
Current assignee: Yancheng Shenhua Machinery Manufacturing Co ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-04-25
Anticipated expiration: 2032-11-30

Abstract

The utility model relates to the field of blowout preventers, in particular to a shell and a blowout preventer, comprising: a first limit groove is formed in the surface of the first shell, and a connecting screw rod is arranged in the first limit groove; the second shell is arranged on one side of the first shell, a second limit groove is formed in the surface of the second shell, and a connecting hole is formed in the inner wall of the second limit groove; the limiting block is arranged between the first limiting groove and the second limiting groove, and a connecting groove is formed in the surface of the limiting block; the beneficial effects are as follows: through fixing the both sides at flange with No. one casing and No. two casings to avoid flange to expose in the outside, fix a position No. one casing and No. two casings through the stopper simultaneously, avoided No. one casing and No. two casings to take place the rotation at flange's surface, solved flange junction and expose in the outside easily contact crude oil, air etc. for a long time, lead to flange department to take place to rust, reduce the problem of preventer's life.

Description

Shell and blowout preventer

Technical Field

The utility model relates to the field of blowout preventers, in particular to a shell and a blowout preventer.

Background

The blowout preventer is used for closing a wellhead in the operation processes of oil testing, well repairing, well completion and the like, so as to prevent blowout accidents, combines the full sealing function and the half sealing function into a whole, has the characteristics of simple structure, easy operation, high pressure resistance and the like, and is a safety sealing wellhead device for preventing blowout commonly used in oil fields;

when the existing blowout preventer is installed, the blowout preventer is connected and fixed through the flange, but the service environment of the blowout preventer is generally severe, and the flange connection part is exposed to the outside for a long time and is easy to contact with crude oil, air and the like, so that the rust occurs at the connection flange, and the service life of the blowout preventer is reduced.

Disclosure of Invention

The utility model aims to provide a shell and a blowout preventer, which are used for solving the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a housing, the housing comprising:

the first shell is provided with a first limit groove on the surface, and a connecting screw rod is arranged in the first limit groove;

the second shell is arranged on one side of the first shell, a second limiting groove is formed in the surface of the second shell, and a connecting hole is formed in the inner wall of the second limiting groove;

the limiting block is arranged between the first limiting groove and the second limiting groove, and the connecting groove is formed in the surface of the limiting block.

Preferably, the first shell is sleeved on one side of the connecting flange, the connecting flange is fixedly connected with the blowout preventer main body through a connecting pipe, and two groups of sealing gaskets are symmetrically embedded in the surface of the first shell.

Preferably, the first limiting groove is provided with two groups, the two groups of first limiting grooves are symmetrically arranged on two sides of the first shell, and the connecting screw is fixedly connected with the inner wall of the first limiting groove.

Preferably, the second shell is attached to the surface of the first shell, the second shell is sleeved on the other side of the connecting flange, and two groups of sealing gaskets are symmetrically embedded in the surface of the second shell.

Preferably, two groups of limit grooves are formed in the second limit groove, the position of the second limit groove corresponds to the position of the first limit groove, the connecting hole penetrates through the inner wall of the second limit groove and the surface of the second shell, and the second shell is sleeved on the surface of the connecting screw rod through the second limit groove.

Preferably, the limiting blocks are provided with two groups, and the limiting blocks are fixedly connected with the connecting flange.

A blowout preventer comprising the housing described above.

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

according to the shell, the first shell and the second shell are fixed on the two sides of the connecting flange, so that the connecting flange is prevented from being exposed to the outside, the first shell and the second shell are positioned through the limiting block, the phenomenon that the first shell and the second shell rotate on the surface of the connecting flange is avoided, and the problems that the connecting flange is corroded due to the fact that the connecting flange is exposed to the outside for a long time and is easily contacted with crude oil, air and the like are solved, and the service life of the blowout preventer is shortened.

Drawings

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

FIG. 2 is a schematic view of a flange structure according to the present utility model;

FIG. 3 is a schematic view of a first housing structure according to the present utility model;

fig. 4 is a schematic diagram of a second shell structure of the present utility model.

In the figure: blowout preventer body 1, flange 11, stopper 12, spread groove 13, connecting pipe 14, no. one casing 2, no. one spacing groove 21, connecting screw 22, no. two casing 3, no. two spacing groove 31, connecting hole 32, sealing gasket 4.

Detailed Description

In order to make the objects, technical solutions, and advantages of the present utility model more apparent, the embodiments of the present utility model will be further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are some, but not all, embodiments of the present utility model, are intended to be illustrative only and not limiting of the embodiments of the present utility model, and that all other embodiments obtained by persons of ordinary skill in the art without making any inventive effort are within the scope of the present utility model.

Example 1

Referring to fig. 1-4, the present utility model provides a technical solution:

a housing, the housing comprising: the surface of the first shell 2 is provided with a first limit groove 21, and a connecting screw rod 22 is arranged in the first limit groove 21; the second shell 3 is arranged on one side of the first shell 2, a second limit groove 31 is formed in the surface of the second shell 3, and a connecting hole 32 is formed in the inner wall of the second limit groove 31; the limiting block 12 is arranged between the first limiting groove 21 and the second limiting groove 31, and a connecting groove 13 is formed in the surface of the limiting block 12; the first shell 2 is sleeved on one side of the connecting flange 11, the connecting flange 11 is fixedly connected with the blowout preventer main body 1 through a connecting pipe 14, and two groups of sealing gaskets 4 are symmetrically embedded in the surface of the first shell 2;

after the two groups of connecting flanges 11 are fixedly connected, the first shell 2 and the second shell 3 are fixed on the side surfaces of the connecting flanges 11, so that the connecting flanges 11 are prevented from being exposed to the outside.

Example two

On the basis of the first embodiment, in order to fix the first shell 2 and the second shell 3, two groups of first limiting grooves 21 are formed, the two groups of first limiting grooves 21 are symmetrically formed on two sides of the first shell 2, and the connecting screw 22 is fixedly connected with the inner wall of the first limiting grooves 21; the second shell 3 is attached to the surface of the first shell 2, the second shell 3 is sleeved on the other side of the connecting flange 11, and two groups of sealing gaskets 4 are symmetrically embedded in the surface of the second shell 3; two groups of second limit grooves 31 are formed, the positions of the second limit grooves 31 correspond to the positions of the first limit grooves 21, the connecting holes 32 penetrate through the inner wall of the second limit grooves 31 and the surface of the second shell 3, and the second shell 3 is sleeved on the surface of the connecting screw rod 22 through the second limit grooves 31;

after the connecting flange 11 is fixedly connected, the first shell 2 and the second shell 3 are respectively sleeved on two sides of the connecting flange 11, the sealing gasket 4 is attached to the connecting pipe 14, at the moment, the first shell 2 is attached to the surface of the second shell 3, the connecting screw 22 is inserted into the connecting hole 32, the nut is screwed on the surface of the connecting screw 22, and accordingly the first shell 2 and the second shell 3 are fixed on the side face of the connecting flange 11 and are positioned through the limiting block 12.

Example III

On the basis of the second embodiment, in order to realize the positioning of the first shell 2 and the second shell 3, two groups of limiting blocks 12 are arranged, and the limiting blocks 12 are fixedly connected with the connecting flange 11;

in the process of mounting the first shell 2 and the second shell 3, the first shell 2 is clamped on the surface of the limiting block 12 through the first limiting groove 21, the second shell 3 is clamped on the surface of the limiting block 12 through the second limiting groove 31, and the connecting screw 22 penetrates through the connecting holes 32 after penetrating through between the two groups of connecting grooves 13, so that the first shell 2 and the second shell 3 are prevented from rotating on the surface of the connecting flange 11.

A blowout preventer comprising the housing described above.

When the connecting flange is used, the two groups of connecting flanges 11 are butted, the two groups of limiting blocks 12 are aligned, the connecting flanges 11 are fixed through bolts, then the connecting screw 22 passes through between the two groups of connecting grooves 13, the first limiting groove 21 is clamped on one side of the limiting block 12, then the second shell 3 is sleeved on the surface of the connecting screw 22 through the connecting hole 32, the second limiting groove 31 is clamped on the other side of the limiting block 12, and then the nut is sleeved on the surface of the connecting screw 22 and screwed down, so that the connecting flange 11 is prevented from being exposed outside.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A housing, characterized in that: the housing includes:

the device comprises a first shell (2), wherein a first limit groove (21) is formed in the surface of the first shell (2), and a connecting screw rod (22) is arranged in the first limit groove (21);

the second shell (3), the second shell (3) is arranged on one side of the first shell (2), a second limit groove (31) is formed in the surface of the second shell (3), and a connecting hole (32) is formed in the inner wall of the second limit groove (31);

the limiting block (12), the limiting block (12) is arranged between the first limiting groove (21) and the second limiting groove (31), and the connecting groove (13) is formed in the surface of the limiting block (12).

2. A housing according to claim 1, wherein: the first shell (2) is sleeved on one side of the connecting flange (11), the connecting flange (11) is fixedly connected with the blowout preventer main body (1) through the connecting pipe (14), and two groups of sealing gaskets (4) are symmetrically embedded in the surface of the first shell (2).

3. A housing according to claim 2, wherein: two groups of first limit grooves (21) are formed, the two groups of first limit grooves (21) are symmetrically formed in two sides of the first shell (2), and the connecting screw (22) is fixedly connected with the inner wall of the first limit groove (21).

4. A housing according to claim 3, wherein: the second shell (3) is attached to the surface of the first shell (2), the second shell (3) is sleeved on the other side of the connecting flange (11), and two groups of sealing gaskets (4) are symmetrically embedded in the surface of the second shell (3).

5. A housing as claimed in claim 4, wherein: two sets of limiting grooves (31) are formed, the positions of the limiting grooves (31) are corresponding to the positions of the limiting grooves (21), the connecting holes (32) penetrate through the inner wall of the limiting grooves (31) and the surface of the shell (3), and the shell (3) is sleeved on the surface of the connecting screw (22) through the limiting grooves (31).

6. A housing as claimed in claim 5, wherein: two groups of limiting blocks (12) are arranged, and the limiting blocks (12) are fixedly connected with the connecting flange (11).

7. A blowout preventer, characterized in that: comprising a housing according to any of the preceding claims 1-6.