| 摘要 |
PROBLEM TO BE SOLVED: To prevent generation of cracking on an inner wall caused by thermal expansion of a jacket.SOLUTION: An outer cylinder and an inner cylinder are concentrically and radially disposed at an interval. A low-temperature gas passage is disposed between the outer cylinder and the inner cylinder, and a high-temperature gas passage is formed in the inner cylinder. The inner cylinder is composed of a metallic vertical jacket 21, and an inner wall 22 made of a refractory material and coated on an inner face of the jacket 21. A thermal expansion coefficient of the jacket 21 is higher than that of the inner wall 22. A plurality of anchors 31 are buried in the inner wall 22 at prescribed intervals in a height direction on a plurality of places on the circumference. A supporting frame 32 is welded and fixed to the jacket 21, engaged with the plurality of anchors 3 so that the jacket freely deforms in the radial direction by thermal expansion, and supported by recessed portions of the inner wall 22. |
