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    真空排水系统是怎么样工作的

    2019-03-19
     真空管道内的排水水流速度可到达3-6米/秒,而一般排水体系的排水速度顶多到达1米/秒。水流速度是一般体系的3-6倍,假定一套有用面积100平方米、楼层高度为3米的住宅彻底被水吞没,用一排水才能为2立方米/秒的真空高速排水体系仅需求2.5分钟就能将这300立方积水排走。而选用现在的城市排水体系,在毫无毛病的抱负状况下,同口径巨细的排水管道一般也要6.5分钟才能将这些水排走。假如某一座城市立交桥下积水面积达500平方米、积水深度达8米,选用排水才能为2立方米/秒的真空排水体系,仅需求34分钟即可将这些水排净;而选用现在常用的排水体系,则至少需求85分钟才可能将这些水排净,时刻相差50分钟。但若急需排水抢救生命和产业,这50分钟就显得弥足珍贵。真空排水体系不光志重力排水体系兼容,还起到互补的效果,假如雨量小,能够直接用现有的排水体系。假如雨量大,能够发动真空排水体系,这样更利于在短时刻内将很多路面积水排走。

    The drainage water flow speed in the vacuum pipeline can reach 3-6 meters/second, while the drainage speed of the general drainage system can reach 1 meter/second at most. The water flow speed is 3-6 times that of the general system. Assuming that a house with a usable area of 100 square meters and a floor height of 3 meters is completely engulfed by water, a vacuum high-speed drainage system with a drainage capacity of 2 cubic meters/second can drain the 300 cubic meters of accumulated water in 2.5 minutes. With the current urban drainage system, it usually takes 6.5 minutes for the drainage pipes with the same diameter and very small diameter to drain the water under the ideal condition of no problem. If a city overpass has a water accumulation area of 500 square meters and a water accumulation depth of 8 meters, a vacuum drainage system with a drainage capacity of 2 cubic meters per second is selected, and the water can be drained in 34 minutes. However, if the current drainage system is used, it will take at least 85 minutes to drain the water completely, with a time difference of 50 minutes. However, if drainage is urgently needed to save lives and industries, the 50 minutes will be precious. Vacuum drainage system is not only compatible with gravity drainage system, but also has complementary effect. If the rainfall is small, the existing drainage system can be directly used. If the rainfall is large, the vacuum drainage system can be activated, which is more conducive to draining away a lot of accumulated water on the road surface in a short time.
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