Analysis and Prevention of Tube burst in Rear Platen Superheater of Boiler

Abstract

Tube burst occurred on Rear Platen Superheater in No.4 boiler of a power plant. Failed to timely discharge condensate water after an emergency shutdown boiler, and then start again, which leading to water blocking in superheater unit caused tube burst. Contrasting the water blocking accidents recent years in this boiler, corresponding preventive measures are formulated, which have certain reference value to theproblems of tubeburst caused by water blocking of the same type boiler.