A furnace explosion occurred in a 410 t/h high-temperature and high-pressure power generation boiler.In order to ensure the safe use of the boiler,a macroscopic inspection and detailed analysis of inspection and detection techniques were conducted on the deformation of the water-cooled wall in the boiler furnace.A set of mechanical correction combination devices was used to repair the deformed furnace,and after the repair was completed,a comprehensive and systematic inspection and testing of the boiler furnace was carried out.Through tracking and verifying the operation of the boiler in the past year,the results show that this repair process can solve the problem of furnace deformation caused by deflagration and other reasons,providing a safe,simple,and fast method for the inspection and maintenance of power plant boilers.
Power plant boilersFlash explosionFurnace deformationCorrection and repair