| 摘要 |
PURPOSE:To permit to effect the assembling work of heat transfer tube modules efficiently by a method wherein the group of the heat transfer tubes is formed so as to be capable of splitting it into the heat transfer tube modules and respective heat transfer tube modules are integrated or connected integrally by a connecting plate. CONSTITUTION:The group 3 of heat transfer tubes for a waste heat recovery heat exchanger, used for a combined cycle power plant or the like, is constituted by a method wherein a plurality or four pieces of heat transfer tube modules 31 are integrated or welded integrally by connecting plates 32 to connect them. In respective heat transfer tube modules 31, straight tube type heat transfer tubes 36 are inserted into the tube holes 35 of a plurality of supporting plates 34, arranged so as to be arrayed, and U-shaped heat transfer tubes 37 are welded to the ends of respective straight heat transfer tubes 36 whereby the meandering heat transfer tubes 39 are constituted. According to this method, the assembling work of respective heat transfer tube modules may be effected in a pace having a wide working space and whereby the welding work of respective heat transfer tube modules or the inspection thereof may be effected efficiently in a short period of time. |
