The function of the water replenishment solenoid valve and the working principle of the water replenishment solenoid valve control loop

Water replenishment solenoid valve The role of

One ​​of the most important functions of the solenoid valve is: when the water level and temperature sensor inside the insulated water tank senses that the water level inside the water tank reaches the highest level, it triggers Solenoid valve transmits a signal to stop the solenoid valve, thereby stopping the water inflow and preventing the water tank from overflowing. From my own understanding, the solenoid valve is equivalent to an intelligent gate valve. The gate valve needs to be opened or closed manually, while the solenoid valve does not require manual switching. It only needs to receive a signal to decide whether to open or close the water flow. , save a lot of trouble.

Working principle of water replenishment solenoid valve control circuit

The model of the solenoid valve is DF-50, and the working voltage is 220 volts. The solar water heaters in the park use direct-acting solenoid valves. When the solenoid valve is energized, the electromagnetic force generated by the solenoid coil lifts the closing member from the valve seat, the valve opens, and the waterway is connected;when the power is turned off, the electromagnetic force disappears and the spring Press the closing piece against the valve seat to disconnect the water line.

The characteristics of this solenoid valve: it can work normally under vacuum, negative pressure, and zero pressure, but the diameter generally does not exceed 25mm.

Switch K5 is placed in the automatic position. When the scheduled water supply time comes, the employee starts to use hot water. When the liquid level is lower than the lower limit When probe B is used, the No. 5 port of the liquid level controller changes from normally open to normally closed, the relay coil KA is powered on, its main contact KA1-1 is closed, the solenoid valve is powered on and starts working, and the water replenishment indicator light is activated at the same time. The HL6 light turns on, and cold water begins to enter the water tower.

When the liquid level in the water tower is higher than the upper limit probe A, port 5 of the liquid level controller returns from normally closed to normally open, the relay coil loses power, its main contact is disconnected, and the solenoid valve YV stops working. At the same time, the HL6 light goes out, indicating that the water replenishment process is complete.

When the transfer switch is in the manual state, as long as the liquid level in the water tower is lower than the lower limit of the probe, Solenoid ValveIt starts working and performs water replenishment. When the liquid level is higher than the upper limit probe A, the solenoid valve stops working and is not affected by the time relay control.

The above is thefunction of the water replenishment solenoid valve and the water replenishment solenoid valve control Loop Working Principle Content introduction. If you want to know more related information, please log in to www.diancifa.cc of Sunway Pneumatic.