STEAM ACCUMULATOR

PURPOSE:To utilize the whole amount of the stored heat energy by forming a hot-water taking-out port on the steam accumulator which stores heat for peak load, utilizing the hot water, and separating the hot water into steam and hot water by a flasher tank, utilizing steam. CONSTITUTION:In case of low load at night, a valve 25 is opened, and a portion of steam is fed into an accumulator 23 from a steam feeding port 24, passing through a pipe 22, and stored as the steam 27 and the hot water 26 each of which has same temperature and same pressure. In case of peak load, a valve 29 is opened, and the accumulator 23 and a flasher tank 31 are allowed to communicate, and a valve 40 is opened, and a steam source and the flasher tank 31 are alowed to communicate, then a valve 25 is closed. Power generation by a main turbine is continued in this state, and the hot water 26 is expanded to each prescribed value of saturated temperature and pressure in the flasher tank, and steam is generated. Then, a steam turbine 36 is rotated, and electricity is added to the capacity of power generation by the main turbine. The steam from the steam source is fed by the amount corresponding to the amount of hot water taken-out which is controlled by a regulating valve 42, and a constant pressure can be kept in the accumulator.