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Diaphragm two position three-way solenoid valve working principle

A preliminary understanding of the solenoid valve, the solenoid valve consists of a magnetic coil and a magnetic core, is a valve body containing one or more holes. When the coil is energized or de-energized, the operation of the magnetic core will cause the fluid to pass through the valve body or be cut off to achieve the purpose of changing the direction of the fluid. The electromagnetic components of the electromagnetic valve are composed of fixed cores, moving iron cores, coils, etc. The valve body consists of a slide valve core, a slide valve cover, and a spring base. The solenoid coil is directly mounted on the valve body, and the valve body is enclosed in a sealed tube to form a compact, compact combination.
The solenoid valves we commonly use in production are two-way three-way, two-position four-way, two-position five-way and so on. Let's talk about the meaning of the two positions here: For the solenoid valve, it is charged and de-energized. For the controlled valve, it is on and off. Oxygen machine control system, the two-position three-way solenoid valve with the most, it can be used to switch on or off the gas source in production, thus the pneumatic control membrane head gas circuit. It consists of valve body, valve cover, electromagnetic assembly, spring and sealing structure and other components. The sealing block at the bottom of the moving iron core closes the air inlet of the valve body by the pressure of the spring. After the power is turned on, the electromagnet pulls in, and the seal block with the spring on the upper part of the moving iron core closes the air outlet, and the air flow enters the membrane head from the air inlet to play a control role. When the power is lost, the electromagnetic force disappears, the moving iron core leaves the fixed iron core under the action of the spring force, moves downwards, opens the exhaust port, blocks the air inlet, and the film head air discharges through the exhaust port, and the diaphragm recovers. Original location. In our oxygen plant, there are applications for the emergency shut-off of the diaphragm inlet valve of the turboexpander.

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