Nowadays energy saving and emission reduction has always been hot issues. First energy center in Pudong Airport had been put into operation since 1998. Management staff was always making effort to energy reduction. Workers there succeeded to make the temperature of gas emission reduced and gas decrease by transforming the boiler system to solve the lack of exhaust gas recycling. Pressurebearing type also brought out a reference to those boilers to gas recycling transform which are in a same or similar situation.