| 摘要 |
PURPOSE: A cleaning system of a gravity flow type wastewater pipeline is provided to extend the service life of pipes by the installation of a pipeline cleaning device inside each manhole. CONSTITUTION: A cleaning system of a gravity flow type wastewater pipeline comprises a manhole(10) and a pipeline cleaning device(100). An upper pipe and a lower pipe are installed in the manhole for flow of waste water. The pipeline cleaning device is installed between the upper pipe and the lower pipe. The manhole collects waste water naturally flowing from upstream. The pipeline cleaning device comprises a connection pipe(110) and a torpedo tube(120). |
