The invention relates to an automatic cleaning device for a
solar water heater. The automatic cleaning device for the
solar water heater comprises a trolley, a distribution box, a circulating water tank, a steam water tank, a circulating water pump, a steam water pump, an
electric heating evaporator, an electromagnetic descaling device, a trailer, a
drying air pipeline, a steam pipeline, a constant-pressure
exhaust valve, a filter, an air extracting pump, an electric heater and a connecting
pipe. According to the automatic cleaning device for the
solar water heater, the electromagnetic descaling technology is adopted, safety and high efficiency are achieved,
corrosion for the
water heater and damage to
human body due to
reagent residue after descaling of a traditional chemical
reagent are avoided; and meanwhile, high-pressure steam is adopted to clean the surface of a heat collecting
pipe, and
drying with hot air is conducted; and the
thermal decomposition function of steam is adopted, the sticky property of
sediment and
stain is quickly dissolved, so that the
sediment and
stain are separated from the heat collecting
pipe,
water consumption is reduced, and the surface of the heat collecting pipe is not damaged.