CN210372243U - Pneumatic control system for automatic valve resetting in fault state - Google Patents
Pneumatic control system for automatic valve resetting in fault state Download PDFInfo
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- CN210372243U CN210372243U CN201921045509.2U CN201921045509U CN210372243U CN 210372243 U CN210372243 U CN 210372243U CN 201921045509 U CN201921045509 U CN 201921045509U CN 210372243 U CN210372243 U CN 210372243U
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Abstract
The utility model discloses a pneumatic control system for automatic valve reset in fault state, relating to the technical field of pneumatic control systems, comprising an air source device, a three-way electromagnetic valve and a locking valve, the air storage tank, five-way pneumatic control valve, the cylinder, the one end and the air supply of first pipeline are connected, the other end separates formation first branch pipeline and second branch pipeline, first branch pipeline passes through three solenoid valve and is connected with the locking valve, the one end of second branch pipeline separates formation third branch pipeline and fourth branch pipeline, the one end that second branch pipeline was kept away from to third branch pipeline is connected with the air storage tank, the one end of fourth branch pipeline separates formation fifth branch pipeline and sixth branch pipeline, the one end that fourth branch pipeline was kept away from to fifth branch pipeline is connected with five-way pneumatic control valve, the one end that fourth branch pipeline was kept away from to sixth branch pipeline and locking valve, the locking valve is connected with five-way pneumatic control valve, five-way pneumatic control valve is connected with the cylinder. The automatic valve switch has the characteristic of resetting the automatic valve switch under the power-off and gas-off fault state.
Description
Technical Field
The utility model relates to pneumatic control system technical field especially involves a pneumatic control system that is used for valve automatic re-setting under the fault condition.
Background
Valves for controlling the medium are arranged on special medium conveying pipelines. Normally, the valve driven by the air source stops acting under the condition of power loss and air loss. These special media lines require that the valve automatically close or open in the event of a fault condition to prevent media loss or vent line pressure. Usually, the control components of the pneumatic valve can control the opening and closing of the valve without a solenoid valve, a filtering pressure reducing valve and a proximity switch. Such a mechanism is completely unsatisfactory if it is desired to achieve automatic closing of the valve in the event of a loss of power and a loss of gas.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a pneumatic control system that is used for valve automatic re-setting under the fault condition for solve above-mentioned technical problem.
The utility model adopts the technical scheme as follows:
a pneumatic control system for automatic valve resetting in a fault state comprises an air source device, a three-way electromagnetic valve, a locking valve, an air storage tank, a five-way pneumatic control valve, an air cylinder, a first pipeline and a second pipeline, wherein one end of the first pipeline is connected with an air outlet of the air source device, the other end of the first pipeline is separated to form a first branch pipeline and a second branch pipeline, the first branch pipeline is connected with the locking valve, the three-way electromagnetic valve is arranged on the first branch pipeline, one end, far away from the first pipeline, of the second branch pipeline is separated to form a third branch pipeline and a fourth branch pipeline, one end, far away from the second branch pipeline, of the third branch pipeline is connected with the air storage tank, one end, far away from the second branch pipeline, of the fourth branch pipeline is separated to form a fifth branch pipeline and a sixth branch pipeline, one end, far away from the fourth branch pipeline, of the fifth branch pipeline is connected with the five-way pneumatic control valve, one end, far away from the fourth branch pipeline, of the sixth branch pipeline is connected with the locking valve, the locking valve is connected with the five-way pneumatic control valve through the second pipeline, and the five-way pneumatic control valve is connected with the air cylinder.
Preferably, the device further comprises a filter valve, and the filter valve is arranged on the first pipeline.
Preferably, the device further comprises a check valve, and the check valve is arranged on the second branch pipeline.
Preferably, the filter device further comprises a filter pressure reducing valve, and the fifth branch pipeline is provided with the filter pressure reducing valve.
Preferably, the three-way electromagnetic valve is a two-position three-way electromagnetic valve.
Preferably, the five-way air control valve is a two-position five-way air control valve.
Preferably, the five-way air control valve is provided with an open-position air passage and a closed-position air passage.
Preferably, the cylinder is provided with an open-position pipeline and an off-position pipeline, the open-position pipeline is communicated with the open-position air path, and the off-position pipeline is communicated with the off-position air path.
The technical scheme has the following advantages or beneficial effects:
the utility model discloses in, through gas holder, locking valve and the five-way gas accuse valve that sets up, the gas holder is used for providing the air supply for the five-way gas accuse valve, and the locking valve is used for controlling opening or closing of the five-way gas accuse valve to can realize that valve automatic switch resets under the power failure and gas failure state.
Drawings
Fig. 1 is a schematic structural diagram of the pneumatic control system for automatic valve reset in a fault state of the present invention.
In the figure: 1. an air supply device; 2. a three-way electromagnetic valve; 3. a lock valve; 4. a gas storage tank; 5. a five-way pneumatic control valve; 6. a cylinder; 7. a first pipeline; 8. a second pipeline; 9. a first branch line; 10. a second branch pipe; 11. a third branch pipeline; 12. a fourth branch pipeline; 13. a fifth branch pipeline; 14. a sixth branch pipeline; 15. a filter valve; 16. a check valve; 17. a filtering pressure reducing valve; 18. opening the pipeline; 19. and (5) closing the pipeline.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.
Fig. 1 is a schematic structural diagram of the pneumatic control system for automatic valve reset in a fault state of the present invention, please refer to fig. 1, which shows a preferred embodiment, and a shown pneumatic control system for automatic valve reset in a fault state includes: the device comprises an air source device 1, a three-way electromagnetic valve 2, a locking valve 3, an air storage tank 4, a five-way air control valve 5, an air cylinder 6, a first pipeline 7 and a second pipeline 8. One end of the first pipeline 7 is connected with an air outlet of the air source device 1, the other end of the first pipeline 7 is separated to form a first branch pipeline 9 and a second branch pipeline 10, the first branch pipeline 9 is connected with the locking valve 3, the three-way electromagnetic valve 2 is arranged on the first branch pipeline 9, one end, far away from the first pipeline 7, of the second branch pipeline 10 is separated to form a third branch pipeline 11 and a fourth branch pipeline 12, and one end, far away from the second branch pipeline 10, of the third branch pipeline 11 is connected with the air storage tank 4. One end of the fourth branch pipeline 12 far away from the second branch pipeline 10 is separated to form a fifth branch pipeline 13 and a sixth branch pipeline 14, one end of the fifth branch pipeline 13 far away from the fourth branch pipeline 12 is connected with the five-way air control valve 5, and one end of the sixth branch pipeline 14 far away from the fourth branch pipeline 12 is connected with the locking valve 3. The locking valve 3 is connected with a five-way pneumatic control valve 5 through a second pipeline 8, and the five-way pneumatic control valve 5 is connected with a cylinder 6. In this embodiment, in the state of no power loss, the air source passes through the three-way electromagnetic valve 2 and then enters the locking valve 3, and then enters the five-way air control valve 5 and then enters the air cylinder 6, and the locking valve 3 can control the opening and closing of the five-way air control valve 5 according to the opening or closing signal given by the three-way electromagnetic valve 2. Under the state of losing electricity, the three-way electromagnetic valve 2 is invalid and can not provide an air source for the locking valve 3, at the moment, the air source in the air storage tank 4 enters the five-way air control valve 5 through the fifth branch pipeline 13 and is used for providing air source power for the air cylinder 6, and the signal sent to the locking valve 3 through the air storage tank 4 controls the five-way air control valve 5 to be directly communicated with the open-position air path or the closed-position air path, so that the valve of the five-way air control valve 5 is opened or closed. Therefore, the problem of automatic valve opening and closing resetting of the five-way pneumatic control valve 5 under the power-off and gas-off fault state is solved.
Further, as a preferred embodiment, the pneumatic control system for automatic valve resetting in a failure state further includes a filter valve 15, and the filter valve 15 is disposed on the first pipeline 7. A filter valve 15 is provided for filtering the gas source in the gas source device 1.
Further, as a preferred embodiment, the pneumatic control system for automatic valve resetting in a failure state further includes a check valve 16, and the second branch pipeline 10 is provided with the check valve 16. The check valve 16 prevents the air supply within the air reservoir 4 from flowing back.
Further, as a preferred embodiment, the pneumatic control system for automatic valve resetting in a fault state further includes a filtering pressure reducing valve 17, and the fifth branch pipeline 13 is provided with the filtering pressure reducing valve 17. The filtering and pressure reducing valve 17 is used for removing impurities such as oil, water, dust and the like in the air source in the air storage tank 4.
Further, as a preferred embodiment, the three-way solenoid valve 3 is a two-position three-way solenoid valve.
Further, as a preferred embodiment, the five-way pneumatic control valve 5 is a two-position five-way pneumatic control valve.
Further, as a preferred embodiment, the five-way air control valve 5 has an open air passage (not shown) and a close air passage (not shown).
Further, as a preferred embodiment, the cylinder 6 has an open-position pipeline 18 and an off-position pipeline 19, the open-position pipeline 18 is communicated with the open-position air path, and the off-position pipeline 19 is communicated with the off-position air path. When the locking valve 3 controls the five-way air control valve 5 to open the open-position air passage, an air source in the five-way air control valve 5 enters the open-position pipeline 18 through the open-position air passage to realize the opening of the air cylinder 6; when the locking valve 3 controls the five-way air control valve 5 to open the closing air passage, the air source in the five-way air control valve 5 enters the closing pipeline 19 through the closing air passage, and the closing of the air cylinder 6 is realized.
The above description is only an example of the preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and those skilled in the art should be able to realize the equivalent alternatives and obvious variations of the present invention.
Claims (8)
1. A pneumatic control system for automatic valve resetting in a fault state is characterized by comprising an air source device, a three-way electromagnetic valve, a locking valve, an air storage tank, a five-way pneumatic control valve, an air cylinder, a first pipeline and a second pipeline, wherein one end of the first pipeline is connected with an air outlet of the air source device, the other end of the first pipeline is separated to form a first branch pipeline and a second branch pipeline, the first branch pipeline is connected with the locking valve, the three-way electromagnetic valve is arranged on the first branch pipeline, one end, far away from the first pipeline, of the second branch pipeline is separated to form a third branch pipeline and a fourth branch pipeline, one end, far away from the second branch pipeline, of the third branch pipeline is connected with the air storage tank, one end, far away from the second branch pipeline, of the fourth branch pipeline is separated to form a fifth branch pipeline and a sixth branch pipeline, one end, far away from the fourth branch pipeline, of the fifth branch pipeline is connected with the five-way pneumatic control valve, one end, far away from the fourth branch pipeline, of the sixth branch pipeline is connected with the locking valve, the locking valve is connected with the five-way pneumatic control valve through the second pipeline, and the five-way pneumatic control valve is connected with the air cylinder.
2. The pneumatic control system for automatic valve reset under fault conditions of claim 1, further comprising a filter valve, said filter valve being disposed on said first conduit.
3. The pneumatic control system for automatic valve reset under fault conditions of claim 1, further comprising a check valve, said second branch line having said check valve disposed thereon.
4. The pneumatic control system for automatic valve reset under fault conditions of claim 1 further comprising a filter pressure relief valve, said filter pressure relief valve being provided on said fifth branch line.
5. The pneumatic control system for automatic valve reset under fault condition of claim 1, wherein the three-way solenoid valve is a two-position three-way solenoid valve.
6. The pneumatic control system for automatic valve reset under fault conditions of claim 1, wherein said five-way pneumatic valve is a two-position five-way pneumatic valve.
7. The pneumatic control system for automatic valve reset under fault conditions of claim 1, wherein said five-way pneumatic control valve has an open position pneumatic circuit and an off position pneumatic circuit.
8. The pneumatic control system for automatic valve reset under fault condition of claim 7, wherein the cylinder has an open position pipeline and an off position pipeline, the open position pipeline is communicated with the open position air channel, and the off position pipeline is communicated with the off position air channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921045509.2U CN210372243U (en) | 2019-07-05 | 2019-07-05 | Pneumatic control system for automatic valve resetting in fault state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921045509.2U CN210372243U (en) | 2019-07-05 | 2019-07-05 | Pneumatic control system for automatic valve resetting in fault state |
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| Publication Number | Publication Date |
|---|---|
| CN210372243U true CN210372243U (en) | 2020-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921045509.2U Active CN210372243U (en) | 2019-07-05 | 2019-07-05 | Pneumatic control system for automatic valve resetting in fault state |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983728A (en) * | 2021-02-23 | 2021-06-18 | 中国长江电力股份有限公司 | Power-down self-resetting self-closing switching device and method for speed regulator with position locking device |
-
2019
- 2019-07-05 CN CN201921045509.2U patent/CN210372243U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983728A (en) * | 2021-02-23 | 2021-06-18 | 中国长江电力股份有限公司 | Power-down self-resetting self-closing switching device and method for speed regulator with position locking device |
| CN112983728B (en) * | 2021-02-23 | 2022-06-03 | 中国长江电力股份有限公司 | Power-down self-resetting self-closing switching device and method for speed regulator with position locking device |
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