Abstract A steam generator for a steam power plant, comprising a furnace for generating hot gases and a gas pass in communication therewith, the gas pass having a sectionalized chamber for hot gas cooling. The entire gas pass together with the chamber constitute a single construction unit built up of water walls arranged one above another in height and bent in a horizontal plane so that each element of each water wall has a different number of bends. The adjacent water walls are interconnected through the top points of the bends forming sections of the entire gas pass together with the sections of the cooling chamber. This results in the formation of a system of rigidly interconnected sections which constitutes the basis of the steam generator structure featuring high rigidity and a high bearing capacity. This allows obviating any additional appliances for fastening the generator and, hence, diminishing materially the metal requirements and simplifying both the erection and operation of the steam generator.
A steam generator for a steam power plant, comprising a furnace for generating hot gases; a gas pass with means providing communication with said furnace to provide a passage for said hot gases; said gas pass having a chamber for partial hot gas cooling arranged above said furnace and including means dividing the chamber into mutually parallel sections; water walls adapted for fluid circulation and constituting said gas pass; said water walls being disposed one above another in height and bent in a horizontal plane so that each element of each water wall has a different number of bends, the adjacent water walls being interconnected through the top points of said bends resulting in the formation of gas pass sections together with said sections of the chamber for partial hot gas cooling, each water wall element comprising an all-welded construction including tubes arranged one above another and mutually parallel so that the tubes of each element are directed essentially at right angles to the direction of hot gas flow, each water wall element including at least two inlet and two outlet headers, the tubes of said water wall element being connected to each of said headers so that the fluid in the adjacent tubes flow in counterflow.
Claim 2
Dependent Claim
207 words
A steam generator for a steam power plant, comprising a furnace for generating hot gases; a gas pass with means providing communication with said furnace to provide a passage for said hot gases; said gas pass having a chamber for partial hot gas cooling arranged above said furnace and including means dividing the chamber into mutually parallel sections; water walls adapted for fluid circulation and constituting said gas pass; said water walls being disposed one above another in height and bent in a horizontal plane so that each element of each water wall has a different number of bends, the adjacent water walls being interconnected through the top points of said bends resulting in the formation of gas pass sections together with said sections of the chamber for partial hot gas cooling, each water wall element comprising an all-welded construction including tubes arranged one above another and mutually parallel so that the tubes of each element are directed essentially at right angles to the direction of hot gas flow, each water wall element including at least two inlet and two outlet headers, the tubes of said water wall element being connected to each of said headers so that the fluid in the adjacent tubes flow in counterflow.