| 摘要 |
PURPOSE: A water collecting pipe with cleaning and backwashing devices is provided to reduce construction costs and period and to manage safety accidents of works by safely implementing a backwashing work in the out of water. CONSTITUTION: A water collecting pipe(100) with cleaning and backwashing devices comprises an outer screen(150), an inner screen(160), connection devices, and pipe devices(180). The outer screen and inner screen are a porous hollow pipe structure. The inner screen is arranged in the outer screen on a same axle and a water collecting pipe(162) is connected to one side of the inner screen. The connection devices maintain the outer screen and the inner screen at a predetermined interval. The pipe devices are fixed in a space between the outer screen and the inner screen by spacers, and have nozzle devices to clean the outer or inner screen. The nozzle devices receive high pressure air from the outside and spray the air. |
