CATALYST COMBUSTION DEVICE

摘要

A catalytic combustion apparatus comprises a combustor 11, a fuel tank 12, a valve 13, and an ignition device 14, the combustor 11 further comprising a gas nozzle 16, an air intake/ejector 17, a mixing chamber 18, a firing chamber 19, an ignition plug 20, a combustion chamber 21, a catalyst for combustion 22 housed inside the combustion chamber 21, and an exhaust port 23. The mixing chamber 18 is made into a straight cylindrical passage, a cylindrical firing chamber 19 is provided in parallel to the mixing chamber 18 so that an opening 24 on the side of the firing chamber 19 communicates with the combustion chamber 21, a burner port 25 is disposed on the boundary between the mixing chamber 18 and the firing chamber 19, and the burner 25 is configured with a catalytic net 25a. With this configuration, a flame is formed on the upstream of the catalyst for combustion 22, the catalyst for combustion 22 is heated by the heat of the flame to catalytic combustion enabling temperature thus effecting catalytic combustion on the catalytic net 25a, too, the flame spontaneously disappears, and the catalyst for combustion 22 commences catalytic combustion. As catalytic combustion can be effected without fail even when the combustion chamber 21 is configured into a low profile, the thickness of the catalytic body can be reduced without reducing the combustion characteristic, thereby enabling reduction in the height of the burner and providing a downsized and thin catalytic combustion apparatus.