| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of securing a number of reusable pipes in performing repairing work of an economizer.SOLUTION: This method of repairing corroded pipes of the economizer in which the plurality of pipes 104, 105 are arranged vertically and laterally in a plurality of rows, includes a cutting step for cutting the corroded pipes and the pipes 104, 105 before the corroded pipes among the plurality of pipes 104, 105, and a connecting step for connecting sound pipes 210 to cut parts of the pipes 104, 105. In the cutting step, the pipes 104, 105 before the corroded pipes are cut in a state that a length of a cut part becomes longer from a depth side toward a front side, and in the connecting step, the pipe excluding the corroded pipe, of the pipe 200 cut in the cutting step is finished, and connected to the cut part of the pipe at the front side with respect to a cutting position in the cutting step. |
