Controller for pre-heating and supplying feed water in feed water vessels to steam generator, has steam heater that is switched off by using valve, when pressure and temperature of feed water in steam generator fall below minimum value

摘要

The controller comprises a steam heater (6) that heats the feed water in a steam generator (2) so that deaeration of the feed water is enabled. The steam heater is switched off by using a steam valve (5), when the pressure of the feed water measured by a pressure absorber (3) and temperature of the feed water measured by a temperature sensor (13) in the steam generator fall below the predefined minimum value.