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The magnetic pump is also called the magnetic drive pump, which drives the outer magnet to rotate through the operation of the motor, and the magnetic force drives the inner magnet to rotate the impeller through the isolation sleeve to complete the conveying. In the installation and use of magnetic pumps, pipeline valves are indispensable supporting equipment. Here are the working principles of ordinary solenoid valves and explosion-proof solenoid valves and the difference between the two?
Solenoid valve is an industrial equipment controlled by electromagnetic. It is an automation basic component used to control fluid. It belongs to actuator and is not limited to hydraulic and pneumatic. Used in industrial control systems to adjust the direction, flow, speed and other parameters of the medium. The solenoid valve can cooperate with different circuits to achieve the desired control, and the accuracy and flexibility of the control can be guaranteed. There are many types of solenoid valves. Different solenoid valves play a role in different positions of the control system. Commonly used are check valves, safety valves, directional control valves, speed control valves, etc.
The difference between riot solenoid valve and ordinary solenoid valve
The difference between ordinary solenoid valve and anti-riot solenoid valve is reflected in the connection box. The so-called anti-riot means that the current fluctuation caused by the electromagnetic head lock is not enough to ignite the corresponding ambient gas. To put it simply, it is the energy required for the action of the electromagnetic head Exposure to flammable gas is dangerous.
The explosion-proof solenoid valve encloses all parts of the equipment that may ignite explosive gas mixtures in a shell. The shell can withstand any joint surface or structural gap of the shell, and the flammable mixture that penetrates into the shell will explode inside without being damaged. It will cause the ignition of an external explosive environment formed by one or more gases or vapors. All parts that may generate sparks, arcs and dangerous temperatures are placed in a flameproof enclosure. The flameproof enclosure makes the internal space of the device and the surrounding environment Separate. There is a gap in the explosion-proof enclosure. Due to the respiration and gas penetration of electrical equipment, there may be an explosive gas mixture inside.
1. Explosion-proof solenoid valve working system: divided into long-term working system, repeated short-time working system and short-time working system. Explosion-proof solenoid valves are all long-term working systems, that is, the coil allows long-term energization to work. If the valve is open for a long time and only closed for a short time, normally open solenoid valve should be used. When it is used in short-time work system and the batch is large, special order can be made to reduce power consumption.
2. Explosion-proof solenoid valve operating frequency: When the operating frequency is high, the structure should preferably be a direct-acting solenoid valve, and the power supply should be preferably AC. The explosion-proof solenoid valve has a long working life.
There is a closed cavity in the solenoid valve with through holes at different positions. Each hole is connected to a different oil pipe. In the middle of the cavity is a piston, and two electromagnets are on both sides. Which side of the magnet coil will be attracted to the valve body when it is energized. On the other hand, by controlling the movement of the valve body to open or close the different oil discharge holes, and the oil inlet is normally open, the hydraulic oil will enter the different oil discharge pipes, and then the piston of the cylinder is pushed by the oil pressure. Drive the piston rod, and the piston rod drives the mechanical device. In this way, the mechanical movement is controlled by controlling the current on and off of the electromagnet.
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