Waste heat removal device and method and underwater nuclear power system

Abstract

The invention discloses a waste heat removal device and method and an underwater nuclear power system, and relates to the technical field of nuclear safety. The device comprises radiation heat exchangers arranged in a shell of the underwater nuclear power device, and a liquid inlet of each radiation heat exchanger can be communicated with a liquid outlet of a reactor; a liquid outlet of each radiation heat exchanger can be communicated with a liquid inlet of the reactor; the underwater nuclear power system comprises an underwater nuclear power device and the waste heat removal device, the underwater nuclear power device comprises a shell, a reactor, a generator and a first circulating pump, the generator is provided with a heat transfer pipeline, a liquid outlet of the reactor is communicated with a first liquid inlet of the heat transfer pipeline, and a liquid inlet of the reactor is communicated with a first liquid outlet of the heat transfer pipeline. The first circulating pump is arranged between the reactor and the generator; the method uses the residual heat removal device and comprises the steps that the underwater nuclear power device stops running; cooling liquid in the reactor flows to the radiation heat exchanger and then flows to the reactor, and circularly flows; the residual heat is completely discharged; the structure is simple, and the size is smaller.

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