Equipment for heat storage in feedwater for steam transformers

The equipment consists of hot water storage tanks connected in parallel to feedwater heaters for steam transformers. One outlet connects the hot water storage anks via a first and a second valves to the supply pipe branch before the feedwater heaters while another outlet connects them via a third valve to the supply pipe branch after the feedwater heaters. The former storage tank outlet is connected via the first valve to the supply pump suction chamber while it is connected to the pump delivery part via the second valve. The cooled condensate outlet from the feedwater heater is connected to the condensate pipe before the regenerating economizers of the steam turbine while the first outlet of hot condensate from the steam transformer is connected via a fourth valve to the feedwater pipe after the regenerating economizers. A first outlet from the steam transformer is connected via a fifth valve to the outlet of the feedwater heater. (B.S.)