| 摘要 |
PURPOSE:To perform a reliable checking of a collecting plate for spinning and slipping and to prevent damaging of a cover portion due to a thermal stress, by a method wherein, in case a collecting plate of a vacuum tube type collector is installed to a heating medium tube, a lining is conducted by the use of a cover plate made of a material belonging to a system similar to that of the heating medium. CONSTITUTION:A heating medium tube 2 is housed in a permeable outer tube 1, and two collecting plates 3 engages the heating medium tube 2 at a given interval. A steel or a steel alloy cover plate 7, made of a material belonging to a system similar to that of the heating medium tube, is attached to approximately a center of each collecting plate by means of rivet 5 or by a caulking, and further, the cover plate 7 engages with the heating medium tube 2 by a welding 6 or a brazing. |
