Main troublesome problems

such as temperature excursion of superheated steam an d reheated steam

unreasonable design of heating surface

higher resistance in superheater system

and defects of burner-swinging actuator etc. occurred in operation of four HG2008 type coal-fired boilers on active service for 600MW units manufactured by Harbin Boiler Factory have been summarized

and corresponding measures for improvement have been put forward

providing for design and operation optimization of homemade large capacity coal-fired boilers with beneficial experiences.