MULTITUBULAR HEAT EXCHANGER

摘要

PROBLEM TO BE SOLVED: To conduct a gas-phase oxidation reaction by making a temperature distribution uniform by improving the circulation efficiency of drum side fluid in a multitubular heat exchanger provided with an expansion joint. SOLUTION: In the multitubular heat exchanger, a board for preventing an intrusion of fluid from drum side is provided to an expansion joint in the peripheral direction of the drum. A contact gas-phase oxidation reaction is conducted by using this heat exchanger.