Automatic water supply control circuit of water supply system water tank

Abstract

The invention discloses an automatic water supply control circuit of a water supply system water tank. The automatic water supply control circuit comprises a power circuit and a control circuit. The power circuit comprises a power control button S1, a normally-open contact K2-1 and a normally-open contact K2-2 of a relay K1, a power transformer T, a rectifier diode VD1, a rectifier diode VD2, a rectifier diode VD3, a rectifier diode VD4, a capacitor C3, a capacitor C4, a motor M and a power indication light emitting diode VL. The control circuit comprises a triggering button S2, a resistor R1, a resistor R2, a resistor R3, a transistor V1, a transistor V2, a transistor V3, a diode VD5, a diode VD6, a capacitor C1, a capacitor C2, a relay K1 and a relay K2. According to the automatic water supply control circuit, after water is fully drawn into the water tank, water drawing is automatically stopped, and the alternating current power source of the whole machine is cut out; when the water level in the water tank is lowered to the lowest water level, the power source can be automatically conducted, water drawing is started, and the beneficial effects that the control automation degree is high, and cost is low are achieved.

Description

technical field [0001] The invention belongs to the technical field of automatic control, and in particular relates to an automatic water supply control circuit for a water tank of a water supply system. Background technique [0002] For the convenience of domestic water or various water needs such as pumping and irrigating crops, in rural areas, high-level water towers are often built to store water and supply water. However, in many similar water supply systems, water is pumped manually according to the water level in the water tower, rather than intelligently and automatically controlling the water pump. It is easy to cause human negligence such as forgetting to close the gate and shutting off the water or taking too long to overflow the water, which is inconvenient and easy to waste precious water resources. Some automatic water supply systems do not detect the high and low water level configuration of the well at the water pump pumping point, and fail to effectively pr...

AI Technical Summary

Problems solved by technology

However, in many similar water supply systems, water is pumped manually according to the water level in the water tower, rather than intelligently and automatically controlling the water pump.

In this way, it is easy to cause human negligence that the water is stopped due to forgetting to close the gate or the water overflows due to excessive pumping time, which is inconvenient and easy to waste precious water resources.

Some automatic water supply systems do not detect the high and low water level configuration of the water pump pumping well, which fails to effectively prevent the pump failure and waste of electricity caused by the low water level of the pump and no water idling.

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