CN111828721A - Pneumatic butterfly valve control method - Google Patents
Pneumatic butterfly valve control method Download PDFInfo
- Publication number
- CN111828721A CN111828721A CN202010738106.7A CN202010738106A CN111828721A CN 111828721 A CN111828721 A CN 111828721A CN 202010738106 A CN202010738106 A CN 202010738106A CN 111828721 A CN111828721 A CN 111828721A
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- Prior art keywords
- valve
- butterfly valve
- pneumatic butterfly
- pneumatic
- air
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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
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
- F16K31/1225—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston with a plurality of pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Driven Valves (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a pneumatic butterfly valve control method, which comprises the steps of controlling a pneumatic butterfly valve control device by using a control method; the pneumatic butterfly valve control device comprises a two-position three-way electromagnetic valve connected with a control unit, a pneumatic butterfly valve and air source equipment, and the control method comprises the following steps: the control unit controls the two-position three-way electromagnetic valve through an electric signal, the air source equipment transmits an air signal to the two-position three-way electromagnetic valve through an air supply pipe, the two-position three-way electromagnetic valve outputs an air pressure signal to drive the two-position five-way air control valve, and then the pneumatic signal of the two-position five-way air control valve drives the pneumatic butterfly valve to act. Compared with the prior art, the invention can solve the problems that the existing electric butterfly valve has high failure rate and affects the production efficiency.
Description
Technical Field
The invention relates to the technical field of machining and manufacturing of pneumatic elements, in particular to a control method for a pneumatic butterfly valve.
Background
In the laminar cooling process of hot rolled plate strip production, due to the special requirements of a laminar cooling system on the opening and closing time and flow of cooling water, a pneumatic butterfly valve must be installed at a high-temperature and high-humidity position above a roller way, and the environment is not favorable for long-term work of an electromagnetic valve and is easy to damage. The laminar flow cooling system adopts a pneumatic butterfly valve, generally comprises a two-position five-way electromagnetic valve block connected with a control unit, the two-position five-way electromagnetic valve block is connected with the pneumatic butterfly valve through an air supply pipe, the pneumatic butterfly valve is connected with air source equipment, and is characterized in that an actuator of the pneumatic butterfly valve is simple in structure, high in action speed and easy to control, the butterfly valve is small in size, small in starting torque and the like, the pneumatic butterfly valve is controlled by a single-electric-control two-position five-way electromagnetic valve, the electromagnetic valve receives signals of a programmable controller, and when the signals are changed, pneumatic output signals of the electromagnetic valve are changed, so that the stress direction of an air cylinder is changed, and the butterfly valve. The valve needs to be adjusted in real time due to control, so that the pneumatic butterfly valve is frequently operated, a shaft sleeve sealing element of the pneumatic butterfly valve is very easy to damage, water in a pipeline enters the air cylinder and is discharged from the position of the electromagnetic valve, the electromagnetic valve is damaged more quickly, and the failure rate of a control system is high. In an actual production field, the electromagnetic valve influenced by the use environment is integrated in a pneumatic butterfly valve body in operation, the plug of the electromagnetic valve is easy to age and discolor, and the coil is also easy to burn.
Disclosure of Invention
The invention aims to solve the problem that the existing electric butterfly valve is high in failure rate and affects production efficiency.
In order to solve the problems, the technical scheme of the invention is as follows: the pneumatic butterfly valve control method comprises controlling a pneumatic butterfly valve control device by a control method; the pneumatic butterfly valve control device comprises an electromagnetic valve, a pneumatic butterfly valve and air source equipment, wherein the electromagnetic valve is connected with the control unit;
the pneumatic butterfly valve control device further comprises a mounting support, the electromagnetic valves are two-position three-way electromagnetic valves, a plurality of the two-position three-way electromagnetic valves are arranged in the mounting support, cable bridges for cables passing through the two-position three-way electromagnetic valves are arranged in the mounting support, the pneumatic butterfly valve is connected with two-position five-way pneumatic control valves through air supply pipes, a plurality of air supply pipes connected with the two-position five-way pneumatic control valves penetrate from the outside of the mounting support and are connected with each two-position three-way electromagnetic valve, and the two-position three-way electromagnetic valves are connected with the air source equipment through the air;
the control method comprises the following steps: the control unit controls the two-position three-way electromagnetic valve through an electric signal, the air source equipment transmits an air signal to the two-position three-way electromagnetic valve through an air supply pipe, the two-position three-way electromagnetic valve outputs an air pressure signal to drive the two-position five-way air control valve, and then the pneumatic signal of the two-position five-way air control valve drives the pneumatic butterfly valve to act.
In the above technical solution, a more specific solution may be: the control unit is a PLC.
Further: and the two-position three-way electromagnetic valves are arranged on the electromagnetic valve seat on the side wall of one side in the mounting bracket.
Further: the cable bridge is arranged on the top and one side wall of the mounting bracket.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following beneficial effects:
according to the control method of the pneumatic butterfly valve, according to an original pneumatic control principle diagram, under the condition that the response requirement of the control process is guaranteed, a two-position five-way pneumatic control valve is added, a two-position three-way valve is also used as an electromagnetic valve to replace the original two-position five-way valve, the pneumatic butterfly valve is controlled to be changed into a control unit, an electric signal drives the two-position three-way electromagnetic valve, the electromagnetic valve outputs an air pressure signal to drive the two-position five-way pneumatic control valve, and then the pneumatic butterfly valve is driven to act by the pneumatic control valve so as to; the pneumatic control valve is affected by water vapor and is far less than the electric control valve, the service life of the pneumatic control valve is better than that of a pneumatic butterfly valve body even under the conditions of high temperature, high humidity and water leakage of the pneumatic butterfly valve, the improved maintenance mode is changed into that the pneumatic control valve is periodically replaced together with the pneumatic control valve when the butterfly valve is replaced, the centralized valve block of the two-position three-way electromagnetic valve is installed, maintenance-free work is basically realized due to the change of the environment of the electromagnetic valve, and the maintenance strength of a pneumatic butterfly valve control system is greatly reduced.
Drawings
FIG. 1 is a prior art control schematic;
FIG. 2 is a control schematic of an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an embodiment of the present invention;
FIG. 4 is a pneumatic schematic of an embodiment of the present invention;
the labels in the figure are: the pneumatic butterfly valve comprises a pneumatic butterfly valve 1, a two-position five-way pneumatic control valve 2, a control unit 3, a two-position three-way electromagnetic valve 4, a pneumatic triple piece 5, air source equipment 6, a mounting bracket 7, an air supply pipe 8, a cable 9, a cable bridge 10 and an electromagnetic valve seat 11.
Detailed Description
The embodiments of the invention will be described in further detail with reference to the accompanying drawings:
the present pneumatic butterfly valve control method, as shown in fig. 1-4, includes controlling a pneumatic butterfly valve control device using a control method.
The pneumatic butterfly valve control device comprises a two-position three-way electromagnetic valve 4 connected with a control unit 3, the control unit 3 is a PLC, the pneumatic butterfly valve control device further comprises a mounting support 7, a plurality of two-position three-way electromagnetic valves 4 are arranged in the mounting support 7, and the plurality of two-position three-way electromagnetic valves 4 are arranged on an electromagnetic valve seat 11 on one side wall in the mounting support 7. A cable bridge 10 for passing through a cable 9 of the two-position three-way electromagnetic valve 4 is arranged in the mounting bracket 7, and the cable bridge 10 is arranged on the top and one side wall of the mounting bracket 7; pneumatic butterfly valve 1 is connected two-position five-way air control valve 2 through air supply pipe 8, and many air supply pipes 8 that two-position five-way air control valve 2 is connected are worn into and are connected every two-position three way solenoid valve 4 from installing support 7 outward, and two-position three way solenoid valve 4 passes through the air supply pipe and connects air supply equipment 6, has connected gradually butterfly valve and pneumatic trigeminy piece 5 between pneumatic equipment 6 and the two-position three way solenoid valve 4, and pneumatic trigeminy piece includes oil water filter (filtered compressed air) and relief pressure valve (for passing through gas pressure regulating) and oil atomizer (for oil atomization).
The control method comprises the following steps: the control unit 2 controls the two-position three-way electromagnetic valve 4 through an electric signal, the air source equipment 1 transmits an air signal of the air supply pipe to the two-position three-way electromagnetic valve 4, the two-position three-way electromagnetic valve 4 outputs an air pressure signal to drive the two-position five-way air control valve 2, and then the pneumatic signal of the two-position five-way air control valve 2 drives the pneumatic butterfly valve 1 to act.
According to the original pneumatic control schematic diagram, under the condition that the response requirement of the control process is ensured, a two-position five-way air control valve 2 is added, the original two-position five-way electromagnetic valve is replaced by a two-position three-way electromagnetic valve 4, the control of a pneumatic butterfly valve 1 is changed into that a control unit 3 drives the two-position three-way electromagnetic valve 4 by an electric signal, the two-position three-way electromagnetic valve 4 outputs an air pressure signal to drive the two-position five-way air control valve 2, and then the two-position five-way air control valve 2 drives the pneumatic butterfly valve 1 to act so as to deal with the influence; the pneumatic control valve is affected by water vapor and is far less than the electric control valve, the service life of the pneumatic control valve is better than that of a pneumatic butterfly valve body even under the conditions of high temperature, high humidity and water leakage of the pneumatic butterfly valve, the improved maintenance mode is changed into that the pneumatic control valve is periodically replaced together with the pneumatic control valve when the butterfly valve is replaced, the centralized valve block of the two-position three-way electromagnetic valve is installed, maintenance-free work is basically realized due to the change of the environment of the electromagnetic valve, and the maintenance strength of a pneumatic butterfly valve control system is greatly reduced.
Claims (5)
1. A pneumatic butterfly valve control method includes controlling a pneumatic butterfly valve control device using a control method; pneumatic butterfly valve controlling means includes the solenoid valve of connection control unit, pneumatic butterfly valve, air supply equipment, its characterized in that:
the pneumatic butterfly valve control device further comprises a mounting support, the electromagnetic valves are two-position three-way electromagnetic valves, a plurality of the two-position three-way electromagnetic valves are arranged in the mounting support, cable bridges for cables passing through the two-position three-way electromagnetic valves are arranged in the mounting support, the pneumatic butterfly valve is connected with two-position five-way pneumatic control valves through air supply pipes, a plurality of air supply pipes connected with the two-position five-way pneumatic control valves penetrate from the outside of the mounting support and are connected with each two-position three-way electromagnetic valve, and the two-position three-way electromagnetic valves are connected with the air source equipment through the air;
the control method comprises the following steps: the control unit controls the two-position three-way electromagnetic valve through an electric signal, the air source equipment transmits an air signal to the two-position three-way electromagnetic valve through an air supply pipe, the two-position three-way electromagnetic valve outputs an air pressure signal to drive the two-position five-way air control valve, and then the pneumatic signal of the two-position five-way air control valve drives the pneumatic butterfly valve to act.
2. The pneumatic butterfly valve control method of claim 1, wherein: the control unit is a PLC.
3. A pneumatic butterfly valve control method according to claim 1 or 2, characterized in that: and the two-position three-way electromagnetic valves are arranged on the electromagnetic valve seat on the side wall of one side in the mounting bracket.
4. A pneumatic butterfly valve control method according to claim 1 or 2, characterized in that: the cable bridge is arranged on the top and one side wall of the mounting bracket.
5. A pneumatic butterfly valve control method according to claim 3, characterised in that: the cable bridge is arranged on the top and one side wall of the mounting bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010738106.7A CN111828721A (en) | 2020-07-28 | 2020-07-28 | Pneumatic butterfly valve control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010738106.7A CN111828721A (en) | 2020-07-28 | 2020-07-28 | Pneumatic butterfly valve control method |
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| Publication Number | Publication Date |
|---|---|
| CN111828721A true CN111828721A (en) | 2020-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010738106.7A Pending CN111828721A (en) | 2020-07-28 | 2020-07-28 | Pneumatic butterfly valve control method |
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| CN (1) | CN111828721A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1151007A (en) * | 1997-08-05 | 1999-02-23 | Yaskawa Electric Corp | Air actuator control device |
| CN104100762A (en) * | 2014-07-23 | 2014-10-15 | 超达阀门集团股份有限公司 | Efficient pneumatic relief gate valve |
| CN105697852A (en) * | 2016-04-20 | 2016-06-22 | 正洲泵阀制造有限公司 | Pneumatic slow-closing control device for butterfly valve |
| CN205937882U (en) * | 2016-08-30 | 2017-02-08 | 湖北高中压阀门有限责任公司 | Pneumatic quick closing valve butterfly valve of jumbo size |
| CN106917907A (en) * | 2015-12-26 | 2017-07-04 | 中国石油天然气集团公司 | A kind of pneumatic actuator for one-way damper valve |
-
2020
- 2020-07-28 CN CN202010738106.7A patent/CN111828721A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1151007A (en) * | 1997-08-05 | 1999-02-23 | Yaskawa Electric Corp | Air actuator control device |
| CN104100762A (en) * | 2014-07-23 | 2014-10-15 | 超达阀门集团股份有限公司 | Efficient pneumatic relief gate valve |
| CN106917907A (en) * | 2015-12-26 | 2017-07-04 | 中国石油天然气集团公司 | A kind of pneumatic actuator for one-way damper valve |
| CN105697852A (en) * | 2016-04-20 | 2016-06-22 | 正洲泵阀制造有限公司 | Pneumatic slow-closing control device for butterfly valve |
| CN205937882U (en) * | 2016-08-30 | 2017-02-08 | 湖北高中压阀门有限责任公司 | Pneumatic quick closing valve butterfly valve of jumbo size |
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Application publication date: 20201027 |
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| RJ01 | Rejection of invention patent application after publication |