| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a pipeline inner surface regenerating device. SOLUTION: This pipeline inner surface regenerating device comprises a body tube of anti-corrosive synthetic rubber having a length leading to a manhole and a diameter equal to the inner surface diameter of a pipeline. An adhesive is applied to the surface of the body tube, and a manhole stopper is fitted to both tip parts of the body tube. The stopper is formed of a cylindrical body, and a stopper tube is installed on the circular surface of the cylindrical body. A stopper pressure receiver is fitted to the outer periphery of the stopper, and body tube and stopper tube air filler ports are provided on the outside of the cylindrical body of the stopper. The device also comprises a water flow hose.</p> |
