| 摘要 |
PURPOSE:To eliminate the blowing out of a heat insulator by high temperature gas by inserting an another metal plate between divided metal plates and the heat insulator so that the high temperature gas does not contact directly the insulator. CONSTITUTION:An another metal plate 30 is inserted between a metal plate 10 and a heat insulator 11. In this case, it is constructed that the end face of the plate 20 exceeds a gap g1 between an insulator 9b and the plate 10 and further reaches an insulator 10b. Gas which is introduced into the gap g1 does not contact the insulator 11 due to the presence of the plate 20, and the insulator 11 is not blown out. |
