Abstract: An object of the present invention is to provide a cooling system using deep seawater capable of reducing the cost. The cooling system using deep seawater includes an water intake pump 2 for pumping up deep seawater from the sea, a heat exchanger 3 for exchanging heat between a coolant and cold energy of the pumped-up deep seawater, a first deep seawater pipe 10 for supplying the deep seawater to the heat exchanger 3 from the water intake pump 2, and a second deep seawater pipe 11 which is in communication with the first deep seawater pipe 10 and discharges the deep seawater into the sea, wherein the first deep seawater pipe 10 and the second deep seawater pipe 11 are laid in close proximity by a predetermined distance in the ground.

Abstract: A method of supporting an intake pipe for deep seawater, the intake pipe being made of resin having a smaller specific gravity than the deep seawater, the method including: mooring at least a neighborhood part of an intake port of the intake pipe with a plurality of mooring devices (e.g., pendant-type anchors) each including a mooring wire (e.g., wire rope) and a heavy weight (e.g., concrete block); and mooring the neighborhood part of the intake port in the form of an arc directed to the sea surface.