| 摘要 |
PURPOSE:To make all pipes uniform in the tube inserting length by processing the pipe instead of the tube. CONSTITUTION:In the pipes used for a heat exchanger in a manner wherein the two pipes 2, each of which is divided by partition plates in its interior, are set oppositely with an arbitrary space, at least two tubes 3 are inserted into both the two pipes 2 and fins are provided between each adjacent tube 3, a stopper 5 is formed inside each pipe 2 to make uniform the length of the tube 3 inserted into tube inserting holes 4 of the pipe 2. |
