| 摘要 |
PROBLEM TO BE SOLVED: To increase a resistance to deformation of a pipe wall retaining member having a resistance to compression by a method wherein a spacer means, consisting of connecting elements of liquid permeable films communicating laterally, is fitted into a pipe equipped with opposing parallel pipe walls. SOLUTION: A spacer means 10 is provided with pipe wall retaining members 11, pinched between the pipe walls and arrayed in parallel while having a resistance to compression, while the pipe wall retaining members 11 are adhered mutually with a shape that connecting elements 12 are pinched between both side surfaces of the connecting elements 12 of liquid permeable films communicating laterally. The spacer means 10 are fitted into the pipe upon manufacturing the pipe and the connecting elements 12 bring liquid, flowing in the pipe, into the condition of laminar flow and functions the liquid as a surface type heat transfer element, transferring heat into lateral direction. According to this method, the outer size of the pipeline can be selected freely and a resistance to deformation can be improved. |
