| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a burner with a heat exchange function, capable of preventing the occurrence of stress concentration in a connection part of an outer pipe for air and an inner pipe for exhaust gas with an exhaust pipe and preventing damage around the exhaust pipe. <P>SOLUTION: The burner 1 with the heat exchange function includes the outer pipe 2 for air, a heat chamber 4, a fuel pipe 5 and the inner pipe 3 for exhaust gas. The exhaust pipe 31 for discharging exhaust gas G is provided in the outer peripheral part of the inner pipe 3 for exhaust gas. The exhaust pipe 31 is inserted into an insertion hole 22 provided on the outer peripheral part of the outer pipe 2 for air while forming a predetermined annular clearance 221, and a deformable deformation absorption pipe (auxiliary pipe) 23 is provided on the insertion hole 22. When the inner pipe 3 for exhaust gas is made to function as a heat exchanger, the inner pipe 3 for exhaust gas is thermally expanded and deformed in the axial direction while the deformation absorption pipe 23 is deformed. <P>COPYRIGHT: (C)2010,JPO&INPIT |
