An automatic
fresh water recycling device suitable for a large ship relates to the technical field of equipment and
layout of
fresh water recycling of the large ship and comprises a collecting and
processing mechanism, a circulating mechanism and an
electric control mechanism, and the collecting and
processing mechanism comprises a muddy water
settling tank, a filtering tank and a
clean water storage tank. The bottom of the muddy water
settling tank, the filter tank and the lower end of the clear
water storage tank are in a downward protruding arc shape and are provided with
discharge valves, a filter screen is arranged at the upper part of the filter tank, and a gravel filter layer is arranged below the filter screen; the circulating mechanism comprises a water feeding mechanism and a water discharging mechanism, the water feeding mechanism comprises a
clean water storage tank, a water feeding pump, a
clean water feeding
pipe and a clean water tank, the clean water feeding
pipe is connected with the water feeding pump and the clean water tank, and the water discharging mechanism comprises a water
injection pump, a water discharging
pipe valve, a
toilet, a clean water tank, a water spraying plug and a
sewage discharging pipe; the
electric control mechanism comprises an
electric control box, a PLC control device is arranged in the electric control box, and the electric control mechanism further comprises a detection module, an analysis module and an execution module. The ship rainwater recycling device can be used for recycling water stored in a ship and collecting and storing rainwater, and is convenient to use.