Sea ice prevention device of main propulsion diesel engine cooling water system of high-speed boat

The utility model provides a sea ice prevention device of a main propulsion diesel engine cooling water system of a high-speed boat, comprising a shell; a hot sea water return pipe is communicated at the lower part of one side of the shell, a water outlet pipe is communicated at the upper part of the other side of the shell, a seabed sea water pump suction port is communicated at the bottom of the shell, a filter element close to the sea water pump suction port is arranged in the shell, and a detachable upper cover is arranged at the upper part of the shell. The sea ice prevention device of the main propulsion diesel engine cooling water system of the high-speed boat has the beneficial effects that: the sucked sea water temperature is improved under the mixing action of the sea ice prevention device, the mixed sea water can be ensured to reach more than 10 DEG C through measurement and calculation under the conditions that the ice content of sea water in winter reaches 50 percent and the hot sea water back fl