BOILER AND METHOD FOR REPLACING HEAT TRANSFER TUBE THEREOF

摘要

This boiler is provided with: a heat transfer tube panel (20) disposed within a casing (14); collecting tubes (19) connected to the heat transfer tube panel (20) and disposed outside the casing (14); and a membrane wall opening (22) formed in a membrane wall (15) so that the heat transfer tube panel (20) can be extracted from and inserted into the casing (14). With this boiler, the workload for replacing corroded heat transfer tubes can be reduced to reduce working hours.