Catalyst combustion device

Abstract

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