Solenoid valve is widely used in industrial production, especially in crude oil chemical industry. Electric butterfly valve can not only be operated by water, gas, neutral gas and other vapor and liquid power switches suitable for solenoid valve materials (one-way valve), but also can be used as an indispensable key point in safety interlock maintenance system software (reducing tee, reducing four-way, five-way and six-way).
The solenoid valve is composed of a magnetic induction component and an oil circuit board. The magnetic induction component is composed of fixed transformer iron core, moving stator, electromagnetic coil and other components; The key points of oil circuit board are composed of rotary vane pump core, slide valve sleeve, torsion spring base, etc. When the electromagnetic coil is plugged in or the power is turned off, the operation of the magnetic core will cause the liquid to be disconnected according to the oil circuit board, so as to achieve the purpose of switching the power supply or changing the direction of the liquid. The key solenoid valves used in the safety interlock maintenance system software include three position reducing tee, three position reducing four-way and three position five-way six-way. The meaning of three position is: for the solenoid valve, it is energized or tripped, and for the operated valve, it is opened or closed.
The three position reducing three-way stainless steel solenoid valve is composed of oil circuit board, valve cover, magnetic induction parts, torsion spring and sealing structure. The sealing block at the bottom of the moving transformer iron core closes the air inlet of the oil circuit board by relying on the burden of the torsion spring. When the power is on, the electromagnetic coil excitation regulator, the electromagnetic coil reverses, the sealing block with torsion spring above the moving iron core closes the air outlet, and the cyclone enters the gate valve from the air inlet pipe, which has the effect of operation; When the black-and-white quartz glass tube stops, the magnetic field force dissipates, the moving transformer core leaves under the effect of torsion spring force, the fixed transformer core moves downward, opens the air outlet, plugs the air inlet, and the gate valve changes the power switch due to air resistance. Application of solenoid valve in industrial production
The basic principle of the three position reducing four-way valve is the same as that of the explosion-proof solenoid valve. Only the reducing four-way valve has one air outlet and the five-way six-way valve has two air inlets. Their principle: when there is current according to the electromagnetic coil, it will cause the effect of excitation regulator, fix the transformer core, reverse the moving stator, move the transformer core to push the rotary vane pump core and torque the spring, and the high-temperature solenoid valve changes the position of the rotary vane pump core, and then changes the orientation of the liquid; When the electromagnetic coil jumps to stop, with the help of the elasticity of the torsion spring, the rotary vane pump core is promoted to rotate the impulse transformer core to make the liquid flow according to the original orientation.
