What is the difference between an explosion-proof solenoid valve and a normal solenoid valve?

Electromagnetic valves are industrial devices that are electromagnetically operated. They are automated base components for manipulating fluids. They are attributed to actuators and are not limited to hydraulic and pneumatic. Used in industrial control systems to adjust the direction, flow, speed and other parameters of the media. The solenoid valve can cooperate with different circuits to complete the desired control, and the precision and flexibility of the control can be guaranteed. There are many kinds of solenoid valves, and different solenoid valves exert their effects in different directions of the control system. The most commonly used ones are check valves, safety valves, directional control valves, speed control valves, and the like.

Explosion-proof solenoid valve

Principle of explosion-proof solenoid valve

There are closed chambers in the solenoid valve, and there are through holes in different directions. Each hole is connected with different oil pipes. The center of the cavity is a piston. The two sides are two electromagnets. Which side of the magnet coil is energized to the valve body will be attracted to Which side, by manipulating the movement of the valve body to open or close different oil drain holes, and the oil inlet hole is normally open, the hydraulic oil will enter different oil drain pipes, and then the pressure of the oil pushes the piston of the oil cylinder. The piston drives the piston rod, which drives the mechanical equipment. In this way, the mechanical movement is controlled by the current being turned off by the electromagnet.

Difference between explosion-proof solenoid valve and general solenoid valve

The difference between the general solenoid valve and the riot control solenoid valve is reflected in the wiring box. The so-called riot prevention means that the current caused by the electromagnetic head lock is not determined, and the energy conversion is not enough to point to the corresponding environmental gas. The simple point is that the electromagnetic head requires the action. It is dangerous to expose energy to flammable gases.

The explosion-proof solenoid valve encloses all the components of the equipment or the explosive gas mixture in a casing. The casing can withstand any joint surface or structural vacancy through the casing, and the flammable mixture penetrating into the casing is blasted inside without damage. Moreover, it does not cause the external blasting environment formed by one or more kinds of gases or vapors, and the parts that may have sparks, arcs and dangerous temperatures are placed in the flameproof enclosure, and the explosion-proof enclosure makes the internal space of the equipment. Separated from the surrounding environment. There is a vacancy in the flameproof enclosure, and there may be a explosive gas mixture inside due to the breathing effect of the electrical equipment and the gas permeation effect.

Ordinary solenoid valve

First, the explosion-proof solenoid valve has a long working life.

Second, the explosion-proof solenoid valve operating system: divided into long-term operating system, repeat short-term operating system and short-term operating system three. The explosion-proof solenoid valve is a long-term operation system, that is, the coil promises long-term power-on operation. For long-term valve registrations that require only a short-term closure, a normally open solenoid valve should be used. When used in short-time operation and large batch sizes, special orders can be made to reduce power consumption.

Third, the operating frequency of explosion-proof solenoid valve: When the operating frequency is high, the structure should be a direct-acting solenoid valve, and the power supply should be preferred.