HELICAL TUBE BUNDLE ARRANGEMENT FOR HEAT EXCHANGER

摘要

PROBLEM TO BE SOLVED: To provide a novel heat exchanger without increase in cost and disadvantages of the prior art.SOLUTION: The heat exchanger comprising helically wound tube bundles is disclosed. The helically wound tube bundles are joined with tube sheets to define a primary working fluid system that is fluidically isolated from a secondary working fluid system. The tube sheets and tubes are formed of the same metal material, which facilitates their joining by means of joints that are substantially galvanic corrosion-resistant joints.