DOUBLE PIPE TYPED CHIMNEY FOR FIREWOOD BOILER

摘要

The present invention relates to a double pipe type chimney for a fuel wood boiler which uses wood including a firewood, a waste wood, a wood pellet as a fuel and, more specifically, to a double pipe type chimney for a fuel wood boiler which solves a problem of a blocked pipe by preventing pyroligneous liquor (dew condensation) from being generated when wood is combusted and also preventing the pyroligneous liquor from being dried and attached even though the pyroligneous liquor is generated by forming the structure of a pipe in a double pipe type for a smooth combustion and the discharge of combustion gas by being installed in the fuel wood boiler. According to the present invention, the provided double pipe type chimney for a fuel wood boiler has a double pipe structure comprising: an outer pipe which is connected to an exhaust hole formed in the combustion chamber of the wood boiler; and an inner pipe which is installed inside the outer pipe in order to form an insulating space between the inner wall of the vertical part of the outer pipe and the inner pipe, has a shorter length than the outer pipe, and is installed in the lower side of the outer pipe. The double pipe type chimney for a fuel wood boiler has the outer pipe only in a fixed section of the upper side of the chimney and has the double pipe structure of the outer and inner pipes in the remaining lower side section. Therefore, the present invention suppresses the generation of the pyroligneous liquor and prevents the blockage of the chimney by the structure of being not dried, attached, and accumulated even though the pyroligneous liquor is generated.