CN110056666B - Automatic control valve for bidirectional pressure and working method thereof - Google Patents
Automatic control valve for bidirectional pressure and working method thereof Download PDFInfo
- Publication number
- CN110056666B CN110056666B CN201910431750.7A CN201910431750A CN110056666B CN 110056666 B CN110056666 B CN 110056666B CN 201910431750 A CN201910431750 A CN 201910431750A CN 110056666 B CN110056666 B CN 110056666B
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- Prior art keywords
- hole
- channel
- pipeline
- pressure
- valve core
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- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 7
- 239000012530 fluid Substances 0.000 claims abstract description 34
- 239000007788 liquid Substances 0.000 claims abstract description 34
- 230000000903 blocking effect Effects 0.000 claims abstract description 20
- 230000007423 decrease Effects 0.000 claims description 10
- 230000003068 static effect Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 7
- 230000004888 barrier function Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0209—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor the valve having a particular passage, e.g. provided with a filter, throttle or safety device
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a bidirectional pressure automatic control valve and a working method thereof, comprising the following steps: the control valve comprises a control valve main body, two valve cores and two springs; the center of the control valve main body is provided with a through channel, the center of the channel is provided with a blocking body, and the blocking body divides the channel into two independent channels; each channel is internally provided with a valve core and a spring, one end of the spring is connected with the valve core, and the other end is connected with the blocking body. And three pipelines which are 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 invention has the advantages that: the flow of the gas-liquid fluid can be controlled in stages, and under the condition that leakage occurs in one stage, the valves at the two ends of the stage are automatically closed, so that the gas-liquid fluid in other stages is prevented from leaking, and the loss is reduced; in the maintenance aspect, only the gas-liquid fluid in the leakage stage needs to be emptied for maintenance, and the maintenance efficiency is high.
Description
Technical Field
The invention relates to the technical field of valves, in particular to a bidirectional pressure automatic control valve and a working method thereof.
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 gas-liquid fluid, when leakage or pipe explosion occurs, the valve needs to be closed at the first time, even if the valve closing time is timely, the gas-liquid fluid in the whole pipeline still leaks outwards due to leakage points, and the gas-liquid fluid in the pipe needs to be overhauled or can be repaired under the condition that the whole gas-liquid fluid in the pipe is exhausted or the safety standard is met, so that huge loss is usually caused, and the maintenance efficiency is low.
Disclosure of Invention
The invention aims at the defects of the prior art, and provides a bidirectional pressure automatic control valve and a working method thereof, which can effectively solve the problems existing in the prior art.
In order to achieve the above object, the present invention adopts the following technical scheme:
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 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.
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 sequence of the channel A6 from the channel opening to the barrier 5 is hole A11, hole B12 and hole C13;
the inner wall of the channel B7 is provided with a hole D14, a hole E15 and a hole F16; the opening sequence of the channel B7 from the channel opening to the barrier 5 is hole D14, hole E15, hole F16;
the control valve main body 1 is also internally provided with a pipeline A8, a pipeline B9 and a pipeline C10;
the pipe A8 communicates with the hole a11 and the hole F16, the pipe B9 communicates with the hole B12 and the hole E15, and the pipe C10 communicates with the hole C13 and the hole D14.
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 valve core 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; in the rest state without any pressure, the valve core B3 is in the closed state with the holes F16 and E15.
The invention also discloses a working method of the bidirectional pressure automatic control valve, which comprises the following steps:
when the gas-liquid fluid is pressurized to channel A6:
the valve core A2 compresses the spring 4 to move towards the blocking body 5, and after exposing the hole B12 and the hole C13, gas-liquid fluid passes through the pipeline C10 to enter the next section;
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 gas-liquid fluid passes through the pipeline C10 and the pipeline B9 at the same time;
when the pressure at the end of the channel B7 is continuously increased, the valve core B3 continuously compresses the spring to move towards the blocking body 5, and after the hole F16 is exposed, the gas-liquid fluid flows out of the three pipelines of the pipeline A8, the pipeline B9 and the pipeline C10, so that the whole bidirectional pressure automatic control valve is in a completely opened state.
When the gas-liquid fluid enters the pressurization from the channel B7: the principle is the same as for channel A6.
When the pressure at the A6 end of the passage decreases:
valve core A2 is pushed outwards by spring 4, and closes hole C13 first, then pipeline C10 is blocked;
when the pressure at the end of the channel A6 continuously decreases, the hole B12 is continuously closed, the pipeline B9 is blocked, and only the pipeline A8 is left to be not closed;
the pressure of the channel A6 is continuously reduced, gas-liquid fluid flows into the channel A6 from the end of the channel B7, the pressure of the end of the channel B7 is also reduced, the valve core B3 is pushed outwards by the spring 4 so as to close the hole F16, the pipeline A8 is blocked, and the whole bidirectional pressure automatic control valve is completely in a closed state;
if the gas-liquid fluid pressure decreases from the end of the passage B7, the same applies to the pressure decrease of the passage A6.
Compared with the prior art, the invention has the advantages that: the flow of the gas-liquid fluid can be controlled in stages, and under the condition that leakage occurs in one stage, the valves at the two ends of the stage are automatically closed, so that the gas-liquid fluid in other stages is prevented from leaking, and the loss is reduced; in the maintenance aspect, only the gas-liquid fluid in the leakage stage needs to be emptied for maintenance, 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 apparent, the present invention will be further described in detail by referring to the examples shown in the accompanying drawings.
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 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.
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 sequence of the channel A6 from the channel opening to the barrier 5 is hole A11, hole B12 and hole C13;
the inner wall of the channel B7 is provided with a hole D14, a hole E15 and a hole F16; the opening sequence of the channel B7 from the channel opening to the barrier 5 is that the channel is provided with 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;
the pipe A8 communicates with the hole a11 and the hole F16, the pipe B9 communicates with the hole B12 and the hole E15, and the pipe C10 communicates with the hole C13 and the hole D14.
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 valve core 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; in the rest state without any pressure, the valve core B3 is in the closed state with the holes F16 and E15.
The operation principle of the bidirectional pressure automatic control valve is as follows:
firstly, designing a multi-section type transportation pipeline for transporting gas-liquid fluid, wherein the transportation pipelines of each section are mutually independent, and the adjacent transportation pipelines are communicated by a bidirectional pressure automatic control valve.
When the gas-liquid fluid enters the first stage transport conduit, channel 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, and after the hole B12 and the hole C13 are exposed, gas-liquid fluid passes through the pipeline C10 and enters the next section of transportation 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 gas-liquid fluid passes through the pipeline C10 and the pipeline B9 at the same time;
when the pressure at the end of the channel B7 is continuously increased, the valve core B3 continuously compresses the spring to move towards the blocking body 5, and after the hole F16 is exposed, the gas-liquid fluid flows out of the three pipelines of the pipeline A8, the pipeline B9 and the pipeline C10, so that the whole bidirectional pressure automatic control valve is in a completely opened state.
When the gas-liquid fluid enters the pressurization from the channel B7: the principle is the same as for channel A6.
Channel A6 depressurizes:
when the pressure at the end of the channel A6 is reduced, the valve core A2 is pushed outwards by the spring 4, the hole C13 is closed first, and the pipeline C10 is blocked;
when the pressure at the end of the channel A6 continuously decreases, the hole B12 is continuously closed, the pipeline B9 is blocked, and only the pipeline A8 is left to be not closed;
the pressure of the channel A6 is continuously reduced, gas-liquid fluid flows into the channel A6 from the end of the channel B7, the pressure of the end of the channel B7 is also reduced, the valve core B3 is pushed outwards by the spring 4 so as to close the hole F16, the pipeline A8 is blocked, and the whole bidirectional pressure automatic control valve is completely in a closed state;
if the gas-liquid fluid pressure decreases from the end of the passage B7, the same applies to the pressure decrease of the passage A6.
The bidirectional pressure automatic control valve can be applied to any container for storing and transporting gas-liquid fluid.
Those of ordinary skill in the art will appreciate that the embodiments described herein are intended to aid the reader in understanding the practice of the invention and that the scope of the invention is not limited to such specific statements and embodiments. Those of ordinary skill in the art can make various other specific modifications and combinations from the teachings of the present disclosure without departing from the spirit thereof, and such modifications and combinations remain within the scope of the present disclosure.
Claims (1)
1. A bi-directional pressure automatic control valve, comprising: a control valve main body (1), a valve core A (2), a valve core B (3) and two springs (4);
the center of the control valve main body (1) is provided with a channel penetrating 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 A (6) and B (7);
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 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);
the inner wall of the channel B (7) is provided with a hole D (14), a hole E (15) and a hole F (16); the opening sequence of the channel B (7) from the channel opening to the blocking body (5) is a hole D (14), a hole E (15) and a hole F (16);
a pipeline A (8), a pipeline B (9) and a pipeline C (10) are also arranged in the control valve main body (1);
a pipe A (8) communicating with a hole A (11) and a hole F (16), a pipe B (9) communicating with a hole B (12) and a hole E (15), a pipe C (10) communicating with a hole C (13) and a hole D (14);
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 valve core B (12) and the hole C (13) are in a closed state at the same time;
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 simultaneously in a closed state;
the working method of the bidirectional pressure automatic control valve comprises the following steps:
when the gas-liquid fluid is pressurized to the channel a (6):
the valve core A (2) compresses the spring (4) to move towards the blocking body (5), and after the hole B (12) and the hole C (13) are exposed, gas-liquid fluid passes through the pipeline C (10) to enter the next section;
when the pressure at the end of the channel B (7) is increased, the valve core B (3) compresses the spring to move towards the blocking body (5) and expose the hole E (15), and then gas-liquid fluid passes through the pipeline C (10) and the pipeline B (9) simultaneously;
when the pressure at the end of the channel B (7) is continuously increased, the valve core B (3) continuously compresses the spring to move towards the blocking body (5), and after the hole F (16) is exposed, gas-liquid fluid flows out of three pipelines of the pipeline A (8), the pipeline B (9) and the pipeline C (10), so that the whole bidirectional pressure automatic control valve is in a completely opened state;
when the gas-liquid fluid enters the pressurization from the channel B (7): the principle is the same as that of the channel A (6);
when the pressure at the end of the channel A (6) is reduced:
the valve core A (2) is pushed outwards by the spring (4), and the hole C (13) is closed firstly, so that the pipeline C (10) is blocked;
when the pressure at the end of the channel A (6) continuously decreases, the hole B (12) is continuously closed, the pipeline B (9) is blocked, and only the pipeline A (8) is not closed;
the pressure of the channel A (6) is continuously reduced, gas-liquid fluid flows into the channel A (6) from the end of the channel B (7), the pressure of the end of the channel B (7) is also reduced, the valve core B (3) is pushed outwards by the spring (4) so as to close the hole F (16), the pipeline A (8) is blocked, and the whole bidirectional pressure automatic control valve is completely in a closed state;
if the gas-liquid fluid pressure decreases from the end of the channel B (7), the same applies to the pressure decrease of the channel A (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910431750.7A CN110056666B (en) | 2019-05-23 | 2019-05-23 | Automatic control valve for bidirectional pressure and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910431750.7A CN110056666B (en) | 2019-05-23 | 2019-05-23 | Automatic control valve for bidirectional pressure and working method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110056666A CN110056666A (en) | 2019-07-26 |
| CN110056666B true CN110056666B (en) | 2024-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910431750.7A Active CN110056666B (en) | 2019-05-23 | 2019-05-23 | Automatic control valve for bidirectional pressure and working method thereof |
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| Country | Link |
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| CN (1) | CN110056666B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3850195A (en) * | 1973-04-30 | 1974-11-26 | E Olsson | Fluid pressure valve |
| US6216729B1 (en) * | 2000-05-08 | 2001-04-17 | Parsons & Whittemore, Inc. | Bidirectional check valve for hydraulic system |
| CN102537449A (en) * | 2011-12-07 | 2012-07-04 | 三一重型装备有限公司 | Bidirectional self-adaptive damping valve |
| CN103453177A (en) * | 2013-08-13 | 2013-12-18 | 集美大学 | Dual-pipeline hydraulic safety valve |
| CN209839198U (en) * | 2019-05-23 | 2019-12-24 | 李源 | Bidirectional pressure automatic control valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7086413B2 (en) * | 2004-03-25 | 2006-08-08 | Honda Motor Company, Ltd. | Bi-directional damper valve for a hydraulic line, power steering system incorporating the damper valve, and methods of using same |
-
2019
- 2019-05-23 CN CN201910431750.7A patent/CN110056666B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3850195A (en) * | 1973-04-30 | 1974-11-26 | E Olsson | Fluid pressure valve |
| GB1461835A (en) * | 1973-04-30 | 1977-01-19 | Olsson E A I | Fluid pressure valves |
| US6216729B1 (en) * | 2000-05-08 | 2001-04-17 | Parsons & Whittemore, Inc. | Bidirectional check valve for hydraulic system |
| CN102537449A (en) * | 2011-12-07 | 2012-07-04 | 三一重型装备有限公司 | Bidirectional self-adaptive damping valve |
| CN103453177A (en) * | 2013-08-13 | 2013-12-18 | 集美大学 | Dual-pipeline hydraulic safety valve |
| CN209839198U (en) * | 2019-05-23 | 2019-12-24 | 李源 | Bidirectional pressure automatic control valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110056666A (en) | 2019-07-26 |
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