The invention discloses a diesel oil-LNG (
liquefied natural gas) dual-fuel
hybrid power ship LNG vaporizing device which comprises a
diesel engine sea water opening type cooling circuit and an LNG vaporizing loop, wherein one end of a stop valve of the
diesel engine sea water opening type cooling circuit is communicated with a sea water main
pipe, and the other end of the stop valve is communicated to a sea water pump through a sea water pipeline; an output end of the sea water pump is connected with an input end of a
fresh water cooler through a middle cooler and a lubricating oil cooler; the LNG vaporizing loop comprises a liquid
stream observer and a water bath
vaporizer, the water bath
vaporizer comprises an outer tank and an inner container, the output end of the
fresh water cooler is communicated to the outer tank of the water bath
vaporizer by passing through the sea water pipeline and the liquid
stream observer and then passes through the output end of the outer tank and a
check valve to be lead to the outside of a ship board; and the output end of an LNG gas
storage tank is communicated with the inner container of the water bath vaporizer,
natural gas after being heated and vaporized is lead to the air main
pipe of a dual-fuel
diesel engine from the inner container of the vaporizer, and the vaporizing rate of the
natural gas is improved by more than 20%. The normal
gas supply quantity of the diesel engine is guaranteed, and the diesel oil-LNG dual-fuel
hybrid power ship LNG vaporizing device has obvious economical efficiency and favorable
vaporization efficiency.