| 摘要 |
PROBLEM TO BE SOLVED: To provide a cooling pipe line for winding which has sharply improved cooling efficiency and facilitates winding operation of the pipe line.SOLUTION: A cooling pipe line 1 for winding which is wound around the outer surface of an object 9 to be cooled and cools the object 9 to be cooled by causing cooling medium to pass through the interior of the pipe line is made to be a pipe line which has an angular cylindrical cross-sectional shape. A difference part disposed on a surface in the direction vertical to the outer surface of the cooling object among four surfaces of the angular pipe line is configured to be superimposed opposite to a difference part disposed on the surface in the vertical direction of an adjacent angular pipe line and be wound on the outer surface of the object to be cooled substantially in parallel. |
