Comments on the Horizontal Tubular Air Preheater for Recovery of the Heat of Flue Gas and Reducing Corrosion at Low Temperature Zone
Yao Junwei(Zhujiang Sugarcane Chemical Engineering Factory,Guangzhou 511462 )
Drawback of vertical tubular air preheater is the greater corrosion of tubes at the low temperature zone due to cold air inlet. Based on practical exprience, calculation and economical gains regarding the horizontal tubular preheater were discussed. Also comparison with vertical tubular air preheater was made. It is feasible in technology and economy by lowering the corrosion of tubes at the low temperature zone of air preheater and recovering the waste heat in the flue gas by installing a set of horizontal tubular air preh-eater in the large-size and medium-siz boilers.
【CateGory Index】： TK224