HEAT EXCHANGER OF PIN SHAPED CATALYST BURNING TYPE

摘要

PURPOSE: A heat exchanger of a catalyst burning type is provided to supply heat to a heat medium by using catalyst reaction on surface of pins. CONSTITUTION: Inorganic composite such as gamma alumina is wash-coated on a surface of a metallic pin for conveniently attaching catalyst. Then, titanium and zirconium are post processed on a catalyst layer. Herein, the surface of the pin is processed in a sand blasting method for wash-coating the catalyst. Then, a pin typed heat exchanger coated by gamma alumina is heated at a temperature of 500deg.C for 5 hours. Then, the pin is dried at a temperature of 120deg.C for 6 hours after coating the catalyst. Burned gas at a first exhaust gas outlet(2) is reacted in a heat exchanger having a honeycomb catalyst for being exhausted. Herein, the exhaust gas includes heat for being used as a pre-heating air of the pin typed heat exchanger.