METHOD FOR OPERATING COMBUSTION ASH DEPOSITION PREVENTING APPARATUS AND COMBUSTION ASH DEPOSITION PREVENTING APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a method for operating a combustion ash deposition preventing apparatus capable of suppressing the generation of corrosion in an exhaust gas recirculation passage piping and capable of reducing possibility to come across trouble relating to activation stop of a booster fan and the combustion ash deposition preventing apparatus.;SOLUTION: In the method for operating the combustion ash deposition preventing apparatus 1 having a plurality of nozzles 4 arranged along an inclined flue 12 through which exhaust gas generated in a boiler 10 flows, a recirculation duct 2 having the booster fan 3 for supplying the exhaust gas taken in a downstream side of the inclined flue 12 to the nozzles 4, and a plurality of valves 5 for carrying out blocking the supplying of the exhaust gas to the plurality of nozzles 4, the booster fan 3 of the recirculation duct 2 is continuously operated upon making it possible to supply the exhaust gas to the nozzles 4 by opening the valves 5 with usual load or high load generated in the boiler 10.;COPYRIGHT: (C)2013,JPO&INPIT