Ocean temperature difference generation system using heat pump

摘要

The present invention relates to an ocean thermal energy conversion system using a heat pump, which raises the temperature of surface seawater to use the surface seawater in an evaporator side of an ocean thermal energy conversion apparatus and to use deep seawater in a condenser side even under an environment that the temperature different between the surface seawater and the deep seawater is not great, thereby making a high temperature difference ocean power generation environment; is made to be operated in a state that seawater circulation power is minimized and a coefficient of performance (COP) of the heat pump is improved, thereby achieving economical power generation efficiency; and supplies a continuous and stable heat source even at any position or under any environment near the sea or on the sea. According to the present invention, the ocean thermal energy conversion system using a heat pump comprises: a surface seawater heat supplying unit recovering the heat of the surface seawater; a deep seawater heat supplying unit recovering the heat of the deep seawater; a turbine unit having a coolant circulation unit for circulating a coolant in order to exchange the heat of the surface seawater supplied by the surface seawater heat supplying unit with the heat of the deep seawater supplied by the deep seawater heat supplying unit, and a turbine for generating rotational energy with the coolant circulated by the coolant circulation unit; and a power generation unit generating electrical energy with the rotational energy of the turbine unit, wherein the surface seawater heat supplying unit and the deep seawater heat supplying unit are installed to be submerged in water, and submerged heat exchangers recover the heat of the surface seawater and the deep seawater through circulation of a circulating thermal medium, and then supply the heat to an evaporator of a turbo heat pump and a turbo condenser of the power generation unit.