Solenoid valve - main function
The schematic diagram of the solenoid valve takes the pneumatic system as an example to illustrate the application of solenoid valves in industrial control. The so-called pneumatic system is a control system that uses gas as the medium. In pneumatic systems, the medium for this energy is usually air. When actually used, the volume of air in the atmosphere is usually compressed to increase its pressure. Compressed air mainly works by acting on the piston or blade. In the pneumatic system, the function of the solenoid valve is to adjust the various states of the compressed air according to the control requirements in the control system. The pneumatic system also requires the cooperation of other components, including power components, actuators, switches, display devices and other auxiliary components. equipment. The power components include various compressors, and the actuating components include various cylinders. These are indispensable parts of the pneumatic system. The valve body is an important device for realizing the control algorithm. For example, the one-way valve allows the compressed air to enter the gas tank from the compressor. When the compressor is turned off, it prevents the compressed air from flowing in the opposite direction;the safety valve can discharge the compressed air when the pressure in the gas storage tank exceeds the allowable limit;the directional control valve passes The two interfaces of the cylinder alternately pressurize and exhaust to control the direction of movement;the speed control valve can easily realize stepless speed regulation of the actuator.
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