| 摘要 |
PURPOSE:To allow the usage of a corrosive gas at a temperature more than 1,000 deg.C as well as to prevent leaks and breakage by disposing a compression spring in a space between a ceramic pipe for transmitting heated fluid and a wall surface to take up expansion and contraction of the pipe in the axial direction. CONSTITUTION:A ceramic pipe 5 is used as a heat conducting pipe so that the heat exchange may be conducted with the exhaust gas at a high temperature exceeding 1,000 deg.C. Further, the recovery of heat from a corrosive gas is also intended. When the high temperature exhaust gas is introduced into a framebody 1, respective ceramic pipes 5 are expanded significantly by heat, but the amount of expansion is uneven. However, the respective ceramic pipes 5 are movable in the axial direction by means of a compression spring 14 disposed between a support pipe 8 and a wall surface 2, the uneven thermal expansion is independently absorbed by the respective compression springs 14, and so, the breakage of the ceramic pipes 5 due to the thermal stress can be prevented. Further, the spring force of the spring 14 acts upon the pipe 5 and wall surfaces 7, 7', or the wall surfaces 7, 7' and support pipes 8, 9 to prevent the air leak. |
