Atomic power plant

Object: To introduce oxygen gas from water within a reactor cracked by irradiation of neutron into water supplied into the reactor, thereby accurately and positively adjusting and controlling the amount of oxygen in the water within an allowable value by use of a simple device, without using an oxygen cylinder. Structure: The drain containing a large amount of oxygen generated within a moisture separating reheater and a high pressure water heater is introduced and stored in a drain tank through a plurality of pipes, and the stored drain is fed into a reheating cycle at the downstream of a suitable low pressure water heater by means of a drain pump to mix with water containing a small amount of oxygen from the low pressure water heater, thereby adjusting and controlling the amount of oxygen present in the water. (Kamimura, M.)