| 摘要 |
PURPOSE:To remove odor or harmful gas contained in atmosphere where a heater device is placed, enable even a quite small amount of fuel to be easily burned in a stable manner and shorten a preheating time by a method wherein the surface of a pipe having an electrical resistor stored therein is formed with a catalyst covering layer and then combustion gas consisting of fuel and combustion air is fed into the pipe. CONSTITUTION:Catalyst covering layers 3 are formed on the surfaces of four pipe quartz pipes 4 having heaters 5 therein, so that heat rays radiated from the heater 5 strike the catalyst covering layer 3 so as to perform radiation heating and conduction heating of the catalyst covering layer 3. The catalyst covering layer 3 is heated up to its active temperature within a short period of time and to be at a high temperature. In turn, the heater 5 also heats the odor component in the air sent from an air inlet port 1 by a fan 2. This odor component is brought into contact with or diffused in the catalyst covering layer 3 heated up to its active temperature and then its rapid oxidization and purification is promoted under its catalyst action. In addition, the heat generated by the heater 5 passes through a glass plate 7 and is radiated as far infra-red rays so as to heat the heated item facing the glass plate 7 with radiation. |
