The invention relates to a marine nuclear
waste heat driven compact water and
oxygen making
system and a control method, and the
system comprises a water making unit which comprises a multi-effect
evaporator connected to a nuclear energy
secondary loop system, the multi-effect
evaporator heats
seawater to generate steam and condenses the steam into
fresh water, and the multi-effect
evaporator is connected with a purification device for purifying the
fresh water; the
oxygen generation unit comprises a
solid oxygen candle oxygen generation module and an electrolyzed water oxygen generation module, the
solid oxygen
candle oxygen generation module takes
sodium chlorate as an oxygen source and generates oxygen through a
thermal decomposition reaction, and pure water purified by the electrolyzed water oxygen generation module generates oxygen through electrolyzed water; and the
control unit dynamically controls the pure water produced by the
water production unit to the oxygen
production unit according to the ship operation working condition, the oxygen demand and the
electrical load, and controls the start and stop and the oxygen production of the
solid oxygen
candle oxygen production module and the electrolyzed water oxygen production module. The oxygen generation mode can be switched according to the operation state of the nuclear energy ship, the
solid oxygen candle oxygen generation module is preferentially used for generating oxygen when power is insufficient, and when power is sufficient, the
solid oxygen candle oxygen generation module and the
solid oxygen candle oxygen generation module are used simultaneously to better meet different navigation requirements.