| 摘要 |
PROBLEM TO BE SOLVED: To heat an odor decomposition catalyst with a small electric power and in a short time by taking an enough measure for electric insulation. SOLUTION: This apparatus is provided with a box body 5 with a cavity for gas passage, a water-repellent heat-resistant insulating film 6 provided on the surface of the inlet side of this box body and thin metal sheets 8 arranged approximately at right angles in the cavity for gas passage on the downstream side thereof and each with an odor decomposition catalyst 10 formed through a heat-resistant insulating layer 9 on the surface. In addition, by water repellent action and insulating action of the water-repellent heat-resistant insulating film, electrically conductive communication with an exhaust gas generating instrument generated by water content stuck on the thin metal sheet when exhaust gas passes through the cavity for gas passage is intercepted. It is possible thereby to prevent electric current passing through the thin metal sheet from passing through to the exhaust gas generating instrument side. In addition, as the odor decomposition catalyst is directly provided on the thin metal sheet through the heat-resistant insulating layer, it is possible to heat the catalyst with a small electric power and in a short time. |
