DIRECT SOLAR STEAM GENERATOR AND METHOD OF SHUTING DOWN A DIRECT SOLAR STEAM GENERATOR

摘要

The direct solar steam generator (2) is of the type comprising a solar evaporator (4) having an evaporator circuit (12) for circulation of a working fluid, an evaporator inlet pipe (8) for supplying fluid to the evaporator circuit (12) and an evaporator outlet pipe (10) for collecting the working fluid exiting the evaporator circuit (12), and a solar concentrator (6) for concentrating solar energy towards the evaporator circuit (12). According to one aspect if the invention, the steam generator (2) comprises a fluid arrangement (26) configured to allow forming a static liquid seal in the outlet pipe (10) using the working fluid.