Temperature holding device for water collecting vessels of once-through steam generators

摘要: In a temperature holding device for water collecting vessels of steam generators operable in once-through and circulating operation, having feed-water line leading to the generator, an evaporator superheater heating surface line, water-steam separating intermediate surface, return returning from vessel pump first valve arrangement warm-up one end connected before evaporator, another arrangement, second line. A common outlets on side by partial lines input shut-off being closable operation openable operation.