The household water -free water supply device is to detect pressure tank pressure through the pressure sensor. The pressure electrical signal is automatically controlled by the automatic control circuit recognition and amplification to control the movement of the contactor.Purpose.The working process of the tower -free water supply is to start the water pump. The water is injected into the pressure tank through the stop valve, so as to increase the pressure of the tank body. When the pressure is up to the set pressure, the pressure automatic controller will automatically turn off the water pump to stop the water pump stopping the pump to stop the pump.run.
Principle
The circuit of the household water supply device is shown in the figure below. It is composed of a power transformer, water level detection and control, and alarm sound.In the figure, the transformer B, D1 ～ D4, capacitance C1, C2, and voltage voltage diode DW and resistance R1 are constituted; IC door 1, door 2, and triode BG1, BG2 and relay J, forming water level detection and control circuits; IC1 door 3, door 4 and resistance R9, R10, C9, and speakers to form alarm vocal circuit.When the water level probe 1, 2, and 3 did not contact the water surface, the input end of the IC and the feet, (12) feet and (13) feet are low, and the output end is high levelBG1 and BG2 are all directed, relay J has electrical suction, and its often open contact J1 is closed. The power valve power supply is connected, the faucet is opened, and the water is waiting for the water and injection of the water container.When the water level rises to a certain setting height in the water container, the probe 1 and 3 are connected with the water medium.The output end is turned to a low level to cut the BG2, the relay J is released, and the solenoid valve is turned off due to power off, and the water supply is stopped.
Homeless tower water supply device installation
Detailed installation steps for household water supply device.First: Water pump (brand submersible pump selection 750W1 -inch caliber, water pump: submersible pump, self -suction pump can be used with towerless water supply machines. Generally, brand self -suction pumps can be used for single phase 1000W1 -inch caliber;Non -brand submersible pumps and self -sucking pumps must be connected with 1.1kW or more, 1 -inch caliber) connect to water -free water inlets, and the quality of pure copper in countermeasure valves is relatively strong, because the inverse valve is the most important among tower -free water supply equipment.One valve, the most important point is: If you are using well water, the water inlet must be installed with the air inlet.bad).Second: install the sewage valve and the water pipe.Third: Add pressure switch, pressure gauge.Fourth: Connect the power cord to the pressure switch, and the pump line is also connected to the pressure switch.
Household -free water supply device price
The price of household tower-free water supply is generally around 500-1000 yuan.

Related tags： Houseware