| 摘要 |
PURPOSE:To prevent the generation of crack owing to buckling without generating creep deformation by making a radiation pipe turnable at a proper time by a supporting device. CONSTITUTION:A flange 6 in a supporting part on the stationary side of a radiation pipe 2 is inserted between a bracket 7 projecting from a furnace body 1 and a piping flange 8 and is thus made into the construction wherein the pipe 2 is restrained from moving in its longitudinal direction and can move freely around the axis thereof. On the other hand, a plate 23 supporting the pipe 2 and a pin 14 for turning the pipe 2 are attached on the bore side of a flange 13 in the supporting part on the free side of the pipe 2. The pin 14 is fitted into a long hole 15 provided to the pipe 2 so that the elongation owing to thermal expansion is not restrained and the pipe can turn. An attachment 11 for turning the pipe 2 is inserted between a bracket 9 projecting from the body 1 and a piping 10. The attachment 11 is turned by a driving device to turn the pipe 2. |
