CN222277571U

CN222277571U - Oil-water one-way valve

Info

Publication number: CN222277571U
Application number: CN202421156056.1U
Authority: CN
Inventors: 孟健; 郭奕蘅; 邹声波; 戴保国; 刘江
Original assignee: Jianghan Oilfield Hongjia Machinery Qianjiang Co ltd
Current assignee: Jianghan Oilfield Hongjia Machinery Qianjiang Co ltd
Priority date: 2024-05-25
Filing date: 2024-05-25
Publication date: 2024-12-31
Anticipated expiration: 2034-05-25

Abstract

The utility model discloses an oil-water one-way valve, which relates to the field of valves and comprises a shell main body and an upper plug, wherein a left cavity and a right cavity which are respectively connected with the outside through flanges are arranged in the shell main body, counter bores which are respectively communicated with the left cavity and the right cavity are arranged in the shell main body, an internal pressure cylinder which is positioned between the shell main body and the upper plug is arranged in the counter bores, a valve seat is arranged at the bottom of the internal pressure cylinder, and a valve ball is arranged at the inner side of the valve seat. The utility model can be used for horizontal and angle type one-way valves, can better improve the production requirements, has wider application range, simple structure and short processing and production period, greatly reduces the production and processing costs of products, can be improved by using the existing waste utilization of the valve, further reduces the production costs, is convenient to detach and maintain, and ensures the service life.

Description

Oil-water one-way valve

Technical Field

The utility model relates to the field of valves, in particular to an oil-water one-way valve.

Background

One-way valves are also known as check valves or non-return valves. The check valve is used for preventing reverse flow of oil flow in a hydraulic system or reverse flow of compressed air in a pneumatic system, oil, water and natural gas can reversely surge back under the action of pressure difference in the oilfield production process when an oilfield stops due to reasons, serious interference is brought to normal production work, the operation cost is high, reverse surge of media is prevented through the arrangement of the check valve, and the check valve used in the oilfield at present is divided into a horizontal type and an angle type.

The existing oil-water one-way valve is high in production cost, short in service life and difficult to maintain, for example, the angular one-way valve mentioned in the article No. 1009-301X (2018) 06-0029-03 is provided in the volume 31 of the university of Jiang Han petroleum staff journal 2018, the inner cylinder is added in the angular one-way valve body, and the inner cylinder is a hanging basket which is divided into a hanging basket inner cylinder, a sealing ring, a valve ball, a valve seat and a baffle, but the hanging basket is only used for the angular one-way valve, the whole product needs special processing and production, the processing cost is high, the processing difficulty is high, the period is long and the like.

Disclosure of utility model

In order to solve the technical problems, the utility model adopts the following technical scheme:

The utility model provides an profit check valve, includes shell main part and last end cap, the inside of shell main part is provided with respectively with outside two left and right sides cavity through flange joint, the inside of shell main part is provided with the counter bore that is linked together with two left and right sides cavity respectively, the inside of counter bore is provided with the interior pressure section of thick bamboo that is located between shell main part and the last end cap, the bottom of interior pressure section of thick bamboo is provided with the valve seat, the inboard of valve seat is provided with the valve ball.

The technical scheme of the utility model is further improved in that a stepped groove is arranged below the counter bore, and a sealing element is movably arranged on the inner side of the stepped groove.

The technical scheme of the utility model is further improved in that threads which are connected with the upper plug in a matching way are arranged above the counter bore.

The technical scheme of the utility model is further improved in that the valve seat is arranged above the sealing element, and the valve seat is arranged between the sealing element and the internal pressure cylinder in a sealing way.

The technical scheme of the utility model is further improved in that the sealing element adopts one of a plastic ring or a rubber ring.

The technical scheme of the utility model is further improved in that the upper plug is in sealing connection with the shell main body.

By adopting the technical scheme, compared with the prior art, the utility model has the following technical progress:

The utility model provides an oil-water one-way valve, which realizes one-way sealing through the valve seat and the valve ball matched with counter bores, can be used for horizontal and angle one-way valves, can better improve production requirements and has wider application range.

The utility model provides the oil-water one-way valve, which has the advantages of simple structure, short processing and production period, and capability of greatly reducing the production and processing cost of products, and can be used for modifying the waste utilization of the existing valve (including the waste valve with the undamaged valve body) so as to further reduce the production cost.

The utility model provides an oil-water one-way valve, which is movably installed between a shell main body and an upper plug, has a simple structure, is convenient to disassemble and maintain, and ensures the service life.

Drawings

FIG. 1 is a schematic diagram of the structure of an oil-water check valve of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

FIG. 3 is a schematic cross-sectional view of a valve ball and valve seat according to the present utility model;

FIG. 4 is a schematic view of the structure of the housing body of the present utility model;

fig. 5 is an enlarged view of the structure of fig. 2 at a in accordance with the present utility model.

In the figure, 1 of a shell main body, 2 of a counter bore, 3 of an upper plug, 4 of a sealing piece, 5 of an internal pressure cylinder, 6 of a valve seat, and 7 of a valve ball.

Detailed Description

The present utility model is described in further detail below:

As shown in fig. 1 to 5, the utility model provides an oil-water one-way valve, which comprises a shell main body 1 and an upper plug 3, wherein a left cavity and a right cavity which are respectively connected with the outside through flanges are arranged in the shell main body 1, counter bores 2 which are respectively communicated with the left cavity and the right cavity are arranged in the shell main body 1, an internal pressure cylinder 5 which is positioned between the shell main body 1 and the upper plug 3 is arranged in the counter bores 2, a valve seat 6 is arranged at the bottom of the internal pressure cylinder 5, and a valve ball 7 is arranged at the inner side of the valve seat 6.

Through wherein valve seat 6 and valve ball 7 can adopt 316 stainless steel or other corrosion resistant material to guarantee corrosion resistance, valve seat 6 and valve ball 7 are pre-compressed before the installation and guarantee sealedly, realize the unidirectional seal to two left and right chambers through valve seat 6 and valve ball 7 cooperation counter bore 2, can be used to horizontal and angle type check valve use, application range is wider, the maintenance of dismantling of being convenient for, life is guaranteed, shell main part 1 adopts integrative processing with counter bore 2, guarantee dimensional accuracy, its simple structure, processing production cycle is short, the production processing cost of product has been reduced by a wide margin, the waste and old utilization of accessible use current valve (including the old and useless valve of valve body undamaged is reformed transform simultaneously, further reduction in production cost.

As shown in fig. 5, a stepped groove is arranged below the counter bore 2, and a sealing element 4 is movably arranged on the inner side of the stepped groove.

The sealing element 4 is arranged in the stepped groove so as to ensure the tightness between the left cavity and the right cavity of the shell main body 1 by ensuring the compression of the sealing element 4 through the force acted on the internal pressure cylinder 5 by the upper plug 3.

As shown in fig. 2 and 4, a thread which is in fit connection with the upper plug 3 is arranged above the counter bore 2.

Through the screw thread in last end cap 3 adaptation, utilize the screw thread to install in the top of shell main part 1 through last end cap 3 and realize compressing tightly interior pressure section of thick bamboo 5, the convenient maintenance of dismantling simultaneously guarantees life.

As shown in fig. 2, the valve seat 6 is disposed above the sealing member 4, and the valve seat 6 is disposed between the sealing member 4 and the inner pressure cylinder 5 in a sealing connection.

The valve seat 6 is arranged between the sealing element 4 and the internal pressure cylinder 5 above the sealing element 4, the valve seat 6 is matched with the valve ball 7 to ensure the sealing of the left and right chambers of the shell main body 1 under the influence of dead weight and pressure so as to ensure that liquid and gas in the right chamber are not reversed, wherein a fixed spring can be additionally arranged between the valve ball 7 and the upper plug 3 according to the product requirement to support the valve ball 7 so as to increase the pressure between the valve ball 7 and the valve seat 6, and the sealing performance of the valve ball 7 and the valve seat 6 is improved.

As shown in fig. 2, the sealing member 4 is one of a rubber ring or a rubber ring.

The upper plug 3 is connected with the shell main body 1 in a sealing way.

The sealing piece 4 is one of a plastic ring or a rubber ring, is arranged between the valve seat 6 and the shell main body 1, and is tightly pressed from the upper side through the inner pressure cylinder 5 and the upper plug 3 to ensure plane sealing, so that the flexibility is improved, and the maintenance is convenient.

The working principle of the oil-water check valve is specifically described below.

As shown in fig. 1 to 5, in the use process, when the pressure in the left chamber of the housing main body 1 is greater than that in the right chamber, the liquid or gas flowing in the housing main body 1 moves in the arrow direction in fig. 2 to push up the valve ball 7 positioned at the inner side of the valve seat 6, the valve ball 7 is pushed up along the internal pressure cylinder 5 upwards, so that a medium flows in the housing main body 1 to enter the right chamber to realize circulation, when the pressure in the right chamber is greater than that in the left chamber, the valve ball 7 moves downwards to contact with the valve seat 6 under the dual actions of the dead weight of the valve ball 7 and the pressure of the matched medium, and the valve ball 7 is abutted with the valve seat 6 to realize the sealing of the left chamber and the right chamber of the housing main body 1, so that the liquid or gas in the right chamber does not generate reflux.

The foregoing utility model has been generally described in great detail, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, it is intended to cover modifications or improvements within the spirit of the inventive concepts.

Claims

1. The oil-water one-way valve comprises a shell main body (1) and an upper plug (3), wherein a left cavity and a right cavity which are respectively connected with the outside through flanges are arranged in the shell main body (1), the oil-water one-way valve is characterized in that counter bores (2) which are respectively communicated with the left cavity and the right cavity are arranged in the shell main body (1), an inner pressure cylinder (5) which is positioned between the shell main body (1) and the upper plug (3) is arranged in the counter bores (2), a valve seat (6) is arranged at the bottom of the inner pressure cylinder (5), and a valve ball (7) is arranged on the inner side of the valve seat (6).

2. The oil-water one-way valve according to claim 1, wherein a stepped groove is formed below the counter bore (2), and a sealing element (4) is movably arranged on the inner side of the stepped groove.

3. The oil-water one-way valve according to claim 1, wherein threads matched and connected with the upper plug (3) are arranged above the counter bore (2).

4. The oil-water one-way valve according to claim 2, wherein the valve seat (6) is arranged above the sealing element (4), and the valve seat (6) is arranged between the sealing element (4) and the internal pressure cylinder (5) in a sealing connection.

5. An oil-water one-way valve according to claim 2, wherein the sealing member (4) is one of a plastic ring or a rubber ring.

6. An oil-water one-way valve according to claim 3, wherein the upper plug (3) is in sealing connection with the housing main body (1).