CN209781272U - Axial-flow surge-proof valve control system - Google Patents
Axial-flow surge-proof valve control system Download PDFInfo
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- CN209781272U CN209781272U CN201920123232.4U CN201920123232U CN209781272U CN 209781272 U CN209781272 U CN 209781272U CN 201920123232 U CN201920123232 U CN 201920123232U CN 209781272 U CN209781272 U CN 209781272U
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- valve
- quick
- pneumatic actuator
- flow
- flow amplifier
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Abstract
The utility model discloses an axial-flow type surge-proof valve control system, including guide's quick-witted valve, relief pressure valve, flow amplifier, solenoid valve, locator, valve position changer, the quick-witted valve of arranging, flow amplifier is connected to the relief pressure valve of the same kind, and flow amplifier connects the last cylinder cap of pneumatic actuator, and another way relief pressure valve connection locator, and the solenoid valve is connected to the locator, and flow amplifier, guide's quick-witted valve and quick-valve are connected respectively to the solenoid valve, arrange valve and guide's quick-valve and connect the last cylinder cap of pneumatic actuator, and the valve position changer is connected on the pneumatic actuator output shaft. The logical relationship is: the pneumatic actuator is connected with the pneumatic signal input end of the pneumatic actuator, and the pneumatic actuator is connected with the pilot quick exhaust valve and the quick exhaust valve.
Description
Technical Field
The utility model relates to an axial-flow type prevents breathing heavily valve control system technical field, specifically indicates an axial-flow type prevents breathing heavily valve control system.
Background
When the output pressure of the compressor is constant and the flow rate is reduced to a certain value, abnormal vibration is generated to damage the compressor. In order to prevent surging, the flow rate is kept to be not less than a certain value, and the anti-surging valve automatically opens an air vent valve or a bypass valve which returns to an inlet to the atmosphere when the flow rate is reduced to a certain value, so that the flow rate passing through the compressor is increased, and surging is prevented. The existing anti-surge valve control system basically uses a plurality of positioners and flow amplifiers in a matching way, uses a few electromagnetic valves and quick exhaust valves in a matching way, has no use precedent in the control system for increasing the pilot quick exhaust valve at present, and has the defects that the axial flow type anti-surge valve control system cannot carry out remote control, has slow gas exhaust speed without the quick exhaust valve and cannot meet the requirement of quick opening of the valve.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the not enough of above-mentioned technique, to above-mentioned problem, provide an axial-flow type surge-proof valve control system that can make gas flow smooth and easy and open fast.
The utility model discloses a realize above-mentioned purpose, adopt following technical scheme: the pneumatic control valve comprises a pilot quick-release valve, a pressure reducing valve, a flow amplifier, an electromagnetic valve, a positioner, a valve position transmitter and a quick-release valve, wherein the pressure reducing valve is connected with the flow amplifier, the flow amplifier is connected with a pneumatic actuator, the other pressure reducing valve is connected with the positioner, the positioner is connected with the electromagnetic valve, the electromagnetic valve is respectively connected with the flow amplifier, the pilot quick-release valve and the quick-release valve, the quick-release valve and the pilot quick-release valve are connected with the pneumatic actuator, the valve position transmitter is connected with an output shaft of the pneumatic actuator, after the pressure of an air source medium is reduced by the pressure reducing valve, the air source medium firstly passes through the electromagnetic valve and then the flow amplifier and enters the pneumatic actuator, the valve is closed, when the electromagnetic valve is de-energized, the input end of the quick-release valve is de-energized, the air in the pneumatic actuator is quickly, when the control signal of 4-20 mA is increased, the pilot quick exhaust valve is closed, the pressure in the pneumatic actuating mechanism is increased, the valve tends to be closed, and otherwise, the valve tends to be opened. The pneumatic actuator positioning control is completed by elements such as the electromagnetic valve, the flow amplifier, the positioner and the like, the valve position transmitter output is a current signal after the quick-release valve and the flow amplifier are combined for micro-adjustment, and the valve opening can be remotely monitored.
Has the advantages that: compared with the prior art, the utility model discloses pneumatic actuator positioning control is accomplished to components such as solenoid valve, amplifier, locator, and the fine motion is adjusted and is jointly accomplished by fast arranging the valve and amplifier, and valve position changer output is current signal, but remote monitoring valve aperture, real time monitoring valve running state, and its structure is succinct, and maintenance is convenient, and the reliability is high.
Drawings
The present invention will be further explained with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of an axial flow surge-proof valve control system.
Fig. 2 is a logic diagram of an axial surge protection valve control system.
In the figure: 101. pilot quick-exhaust valve, 102 reducing valve, 103 flow amplifier, 104 electromagnetic valve, 105 positioner, 106 valve position transmitter, 107 quick-exhaust valve
Detailed Description
The following detailed description of the invention/embodiments is provided in connection with preferred embodiments.
An axial-flow anti-surge valve control system comprises a pilot quick-release valve 101, a pressure reducing valve 102, a flow amplifier 103, an electromagnetic valve 104, a positioner 105, a valve position transmitter 106 and a quick-release valve 107, wherein one path of pressure reducing valve 102 is connected with the flow amplifier 103, the flow amplifier 103 is connected with a pneumatic actuator, the other path of pressure reducing valve 102 is connected with the positioner 105, the positioner 105 is connected with the electromagnetic valve 104, the electromagnetic valve 104 is respectively connected with the flow amplifier 103, the pilot quick-release valve 101 and the quick-release valve 107, the quick-release valve 107 and the pilot quick-release valve 101 are connected with the pneumatic actuator, and the valve position transmitter 106 is connected with an output shaft of the pneumatic. After the pressure of an air source medium is reduced by a pressure reducing valve 102, the air source medium firstly passes through an electromagnetic valve 104 and then enters a pneumatic actuator through a flow amplifier 103, a valve is closed, when the electromagnetic valve 104 is de-energized, the input end of a quick exhaust valve 107 is de-energized, air in the pneumatic actuator is quickly exhausted through the quick exhaust valve 107, the valve is opened, a given signal of the valve switching value is a current signal of 4-20 mA, when a control signal of 4-20 mA is increased, a pilot quick exhaust valve 101 is closed, the pressure in the pneumatic actuator is increased, the valve tends to be closed, and otherwise the valve tends to be opened. The solenoid valve 104, the flow amplifier 103, the positioner 105 and other elements complete the positioning control of the pneumatic actuator, the micro-motion adjustment is completed by combining the quick-release valve 107 and the flow amplifier 103, and the valve position transmitter 106 outputs a current signal which can remotely monitor the opening of the valve. When the pneumatic control valve works normally, the electromagnetic valve 104 is electrified, when a control signal of 4-20 mA is increased, the output pressure of the positioner 105 is increased, the electromagnetic valve 104 acts on a control port of the flow amplifier 103 and a control port of the pilot quick exhaust valve 101, the output pressure of the flow amplifier 103 is increased, the pilot quick exhaust valve 101 is completely closed, the pressure in the pneumatic actuating mechanism is increased, and the pneumatic actuating mechanism pushes the valve to move downwards in the closing direction of the valve; when the control signal of 4-20 mA is reduced, the output pressure of the positioner 105 is reduced, the control signal acts on the control port of the flow amplifier 103 and the control port of the pilot quick exhaust valve 101 through the electromagnetic valve 104, part of the flow amplifier 103 is emptied, the output pressure is reduced, the pilot quick exhaust valve 101 is closed after being partially opened, the pressure of the pneumatic actuator is reduced, the pneumatic actuator drives the valve to move upwards in the opening direction of the valve, the electromagnetic valve 104 is powered off when the work is abnormal, the control port gas circuit of the flow amplifier 103 is cut off, the control port gas circuit of the pilot quick exhaust valve 101 is cut off, the flow amplifier 103 stops outputting, the pilot quick exhaust valve 101 and the quick exhaust valve 107 are completely opened for quick exhaust, the valve is quickly opened, the valve position transmitter 106 transmits the opening position information in real time, and transmits 4-20 mA current signals.
The utility model discloses an optimal scheme is, the solenoid valve outage cuts off pneumatic amplifier's control mouth gas circuit to and guide's fast row valve control mouth gas circuit, flow amplifier stop output, guide's fast row valve and fast row valve open fast exhaust completely, and the valve is opened fast, and valve position changer real-time transmission valve aperture positional information.
The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.
Claims (2)
1. The utility model provides an axial-flow type surge-proof valve control system, includes guide's quick-witted, relief pressure valve, flow amplifier, solenoid valve, locator, valve position changer, quick-witted, its characterized in that: wherein all the way flow amplifier is connected to the relief pressure valve, flow amplifier connects on the pneumatic actuator, another way the locator is connected to the relief pressure valve, the solenoid valve is connected to the locator, flow amplifier, guide's fast valve and fast valve are connected respectively to the solenoid valve, fast valve and guide's fast valve are connected on the pneumatic actuator, valve position changer connects on the pneumatic actuator output shaft.
2. The axial flow anti-surge valve control system of claim 1, wherein: when the control signal is increased, the pilot quick-discharge valve is closed, the pressure in the pneumatic actuating mechanism is increased, the valve tends to be closed, and otherwise, the valve tends to be opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920123232.4U CN209781272U (en) | 2019-01-24 | 2019-01-24 | Axial-flow surge-proof valve control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920123232.4U CN209781272U (en) | 2019-01-24 | 2019-01-24 | Axial-flow surge-proof valve control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209781272U true CN209781272U (en) | 2019-12-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920123232.4U Active CN209781272U (en) | 2019-01-24 | 2019-01-24 | Axial-flow surge-proof valve control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209781272U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111075749A (en) * | 2019-12-27 | 2020-04-28 | 湖南泛航智能装备有限公司 | Intelligent anti-surge device of ultrahigh-speed centrifugal fan |
| CN111577200A (en) * | 2020-07-01 | 2020-08-25 | 成都英派尔新能源科技有限公司 | Emergency cut-off device with remote control and local mechanical control functions |
-
2019
- 2019-01-24 CN CN201920123232.4U patent/CN209781272U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111075749A (en) * | 2019-12-27 | 2020-04-28 | 湖南泛航智能装备有限公司 | Intelligent anti-surge device of ultrahigh-speed centrifugal fan |
| CN111577200A (en) * | 2020-07-01 | 2020-08-25 | 成都英派尔新能源科技有限公司 | Emergency cut-off device with remote control and local mechanical control functions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210607 Address after: 301712 No.11 Guwang Road, Jingbin Industrial Park, Wuqing District, Tianjin Patentee after: TIANJIN BTER FLUID CONTROL VALVE Co.,Ltd. Patentee after: West to east gas transmission branch of National Petroleum Pipeline Network Group Co.,Ltd. Patentee after: BEST ENERGY EQUIPMENT (TIANJIN) Co.,Ltd. Address before: 301712 No.11 Guwang Road, Jingbin Industrial Park, Wuqing District, Tianjin Patentee before: TIANJIN BTER FLUID CONTROL VALVE Co.,Ltd. Patentee before: BEST ENERGY EQUIPMENT (TIANJIN) Co.,Ltd. |
|
| TR01 | Transfer of patent right |