The invention discloses a
solar water heater water pretreatment device. A pretreatment box is included. One end of the pretreatment box is connected with a faucet through a water feed
pipe A, and theother end of the pretreatment box is connected with a self-cleaning
water storage tank through a water feed
pipe B. An
impurity removal composite net and an automatic incrustation removal
assembly forremoving incrustations accumulated on the
impurity removal composite net are arranged in the pretreatment box. The automatic incrustation removal
assembly comprises a circular-platform-shaped connecting
water pipe, one end of the connecting
water pipe is connected with the water feed
pipe A, the other end of the connecting
water pipe is connected with the water feed pipe B, the water feed pipe Bis provided with an incrustation removal control valve, the incrustation removal control valve is connected with a master
control system, the
impurity removal composite net is arranged in the connecting water pipe, and an incrustation removal liquid inlet pipe and a waste liquid outlet pipe with a valve are arranged at the upper end and the lower end of the connecting water pipe correspondingly. Asolar
water heater water
pretreatment method comprises the following steps that S100, the impurity removal composite net conducts purification and impurity removal on water entering the self-cleaningwater
storage tank; and S200, incrustation removal treatment is conducted on the impurity removal composite net, the
automation performance is high, operation is simple and convenient, and great convenience is brought to daily life water utilization for people.