CN209839198U

CN209839198U - Bidirectional pressure automatic control valve

Info

Publication number: CN209839198U
Application number: CN201920753593.7U
Authority: CN
Inventors: 李源; 李翔宇; 李辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-23
Filing date: 2019-05-23
Publication date: 2019-12-24
Anticipated expiration: 2029-05-23

Abstract

The utility model discloses a two-way pressure automatic control valve, include: the control valve comprises a control valve main body, two valve cores and two springs; a through channel is formed in the center of the control valve main body, a blocking body is arranged in the center of the channel, and the blocking body equally divides the channel into two independent channels; and a valve core and a spring are respectively arranged in each channel, one end of the spring is connected with the valve core, and the other end of the spring is connected with the blocking body. Three pipelines communicated with the two channels are further arranged in the channels, and valve cores at two ends can open and close the three pipelines through pressure, so that bidirectional pressure control is realized. The utility model has the advantages that: the flow of the gas-liquid fluid can be controlled in stages, and the valves at two ends of one stage are automatically closed under the condition that the leakage occurs in the other stage, so that the gas-liquid fluid in other stages is prevented from leaking, and the loss is reduced; in the aspect of maintenance, only the gas-liquid fluid in the leakage stage needs to be emptied, so that the maintenance can be carried out, and the maintenance efficiency is high.

Description

Bidirectional pressure automatic control valve

Technical Field

The utility model relates to the technical field of valves, in particular to two-way pressure automatic control valve.

Background

At present, the valve plays an important role in gas-liquid fluid transportation, but only one valve is arranged in the current pipeline for transporting the gas-liquid fluid, when leakage or pipe explosion occurs, the valve is required to be closed at the first time, even if the valve is closed timely, the gas-liquid fluid in the whole pipeline still leaks outwards due to loss of leakage points, the gas-liquid fluid in the pipeline is required to be repaired under the condition that the gas-liquid fluid in the pipeline is completely discharged or reaches the safety standard, so that great loss is caused as usual, and the maintenance efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to prior art's defect, provide a two-way pressure automatic control valve, can the effectual problem that exists of solving above-mentioned prior art.

In order to realize the purpose of the utility model, the utility model discloses the technical scheme who takes as follows:

a bi-directional pressure automatic control valve comprising: a control valve main body 1, a valve core A2, a valve core B3 and two springs 4;

the center of the control valve main body 1 is provided with a channel penetrating through the control valve main body 1, the center of the channel is provided with a blocking body 5, and the blocking body 5 divides the channel into two independent channels A6 and B7 in a bisection mode.

The valve core A2 is arranged in the channel A6 and is in interference fit with the inner wall of the channel A6;

the valve core B3 is arranged in the channel B7 and is in interference fit with the inner wall of the channel B7;

the inner wall of the channel A6 is provided with a hole A11, a hole B12 and a hole C13; the opening of the channel A6 from the channel port to the blocking body 5 is sequentially a hole A11, a hole B12 and a hole C13;

the inner wall of the channel B7 is provided with a hole D14, a hole E15 and a hole F16; the opening of the passage B7 from the passage port to the blocking body 5 is sequentially a hole D14, a hole E15 and a hole F16;

the control valve main body 1 is also internally provided with a pipeline A8, a pipeline B9 and a pipeline C10;

conduit A8 communicates with bore a11 and bore F16, conduit B9 communicates with bore B12 and bore E15, and conduit C10 communicates with bore C13 and bore D14.

The hole A11 is an overrunning pressure relief hole and is in a normally open state, and the valve core A2 only controls the closing and opening of the hole B12 and the hole C13; the valve core A2 is in a static state without any pressure, and the B12 and the hole C13 are in a closed state at the same time;

the hole D14 is an overrunning pressure relief hole and is in a normally open state, and the valve core B3 only controls the closing and opening of the hole F16 and the hole E15; the valve core B3 is in a static state without any pressure, and the hole F16 and the hole E15 are in a closed state at the same time.

Compared with the prior art, the utility model has the advantages of: the flow of the gas-liquid fluid can be controlled in stages, and the valves at two ends of one stage are automatically closed under the condition that the leakage occurs in the other stage, so that the gas-liquid fluid in other stages is prevented from leaking, and the loss is reduced; in the aspect of maintenance, only the gas-liquid fluid in the leakage stage needs to be emptied, so that the maintenance can be carried out, and the maintenance efficiency is high.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the following description is provided for the embodiments with reference to the accompanying drawings.

the inner wall of the channel B7 is provided with a hole D14, a hole E15 and a hole F16; the channel B7 is perforated from the channel port to the blocking body 5 in the order of hole D14, hole E15 and hole F16;

The hole A11 is an overrun pressure relief hole and is in a normally open state, and the valve core A2 only controls the closing and opening of the hole B12 and the hole C13; the valve core A2 is in a static state without any pressure, and the B12 and the hole C13 are in a closed state at the same time;

the hole D14 is an overrun pressure relief hole and is in a normally open state, and the valve core B3 only controls the closing and opening of the hole F16 and the hole E15; the valve core B3 is in a static state without any pressure, and the hole F16 and the hole E15 are in a closed state at the same time.

The operation principle of the bidirectional pressure automatic control valve is as follows:

the multi-section conveying pipelines for conveying gas-liquid fluid are designed firstly, each section of conveying pipeline is independent, and adjacent conveying pipelines are communicated by a bidirectional pressure automatic control valve.

When the gas-liquid fluid enters the first section of the transport pipe, passage a6 begins to pressurize:

when the pressure at the end of the channel A6 is increased, the valve core A2 compresses the spring 4 to move towards the blocking body 5, after the hole B12 and the hole C13 are exposed, gas-liquid fluid passes through the pipeline C10 and enters the next section of conveying pipeline;

when the pressure at the end of the channel B7 is increased, the valve core B3 compresses the spring to move towards the blocking body 5 and expose the hole E15, and then the gas-liquid fluid passes through the pipeline C10 and the pipeline B9 simultaneously;

when the pressure at the end of the passage B7 continues to increase, the valve core B3 continues to compress the spring and moves towards the blocking body 5, after the hole F16 is exposed, gas-liquid fluid flows out from the three pipelines of the pipeline A8, the pipeline B9 and the pipeline C10, and the whole automatic bidirectional pressure control valve is in a fully open state.

When gas-liquid fluid enters the boost from passage B7: the principle is the same as for channel a 6.

When the passage A6 is depressurized:

when the pressure at the end of the passage A6 is reduced, the valve core A2 is pushed outwards by the spring 4 and closes the hole C13 firstly, and then the pipeline C10 is blocked;

when the pressure at the end of the passage A6 is continuously reduced, the hole B12 is continuously closed, the pipeline B9 is blocked, and only the pipeline A8 is not closed;

the pressure of the passage A6 is continuously reduced, the gas-liquid fluid flows from the end of the passage B7 to the end of the passage A6, the pressure of the end of the passage B7 is also reduced, the valve core B3 is pushed outwards by the spring 4 to close the hole F16, the passage A8 is blocked, and the whole automatic bidirectional pressure control valve is completely closed;

if the gas-liquid fluid pressure decreases from the end of the passage B7, the same principle as the pressure decrease of the passage a6 is applied.

The two-way automatic pressure control valve can be applied to any container for storing and transporting gas-liquid fluid.

It will be appreciated by those of ordinary skill in the art that the examples described herein are intended to assist the reader in understanding the manner of practicing the invention, and it is to be understood that the scope of the invention is not limited to such specific statements and examples. Those skilled in the art can make various other specific modifications and combinations based on the teachings of the present invention without departing from the spirit of the invention, and such modifications and combinations are still within the scope of the invention.

Claims

1. A bi-directional pressure automatic control valve, comprising: the valve comprises a control valve main body (1), a valve core A (2), a valve core B (3) and two springs (4);

a channel penetrating through the control valve main body (1) is formed in the center of the control valve main body (1), a blocking body (5) is arranged in the center of the channel, and the channel is divided into two independent channels A (6) and B (7) by the blocking body (5);

the valve core A (2) is arranged in the channel A (6) and is in interference fit with the inner wall of the channel A (6);

the valve core B (3) is arranged in the channel B (7) and is in interference fit with the inner wall of the channel B (7);

the inner wall of the channel A (6) is provided with a hole A (11), a hole B (12) and a hole C (13); the hole opening sequence of the channel A (6) from the channel opening to the blocking body (5) is a hole A (11), a hole B (12) and a hole C (13);

a hole D (14), a hole E (15) and a hole F (16) are formed in the inner wall of the channel B (7); the channel B (7) is provided with holes D (14), E (15) and F (16) from the channel opening to the blocking body (5) in sequence;

a pipeline A (8), a pipeline B (9) and a pipeline C (10) are also arranged in the control valve main body (1);

pipeline A (8) is communicated with hole A (11) and hole F (16), pipeline B (9) is communicated with hole B (12) and hole E (15), and pipeline C (10) is communicated with hole C (13) and hole D (14);

the hole A (11) is an overrun pressure relief hole and is in a normally open state, and the valve core A (2) only controls the closing and opening of the hole B (12) and the hole C (13); the valve core A (2) is in a static state without any pressure, and the B (12) and the hole C (13) are in a closed state simultaneously;

the hole D (14) is an overrun pressure relief hole and is in a normally open state, and the valve core B (3) only controls the closing and opening of the hole F (16) and the hole E (15); the valve core B (3) is in a static state without any pressure, and the hole F (16) and the hole E (15) are in a closed state at the same time.