真空排污系统管网的铺设

污水在压差的作用下 ,向前运动一段时间后 ,回落到各提升段的低洼处 ,所引起的激励波继续向前传播 ,激发前方静止的污水再次运动起来。这样经多次提升 ,污水越过上坡进入收集罐。由于只考虑向下坡度小于 2 %的管线的摩擦损失及各提升段的静压头损失 ,因此 ,根据不同的系统运行水平 ,污水提升高度可达 4.5～ 6m ,输送距离可达4km。

LAYING OF PIPE NETWORK FOR VACUUM SEWAGE SYSTEM

Sewerage drived by differential pressure flows forward for some time, eventually, it flows to low point(bottom of lifts) in a pipeline. And the inspired waves travel forward to cause the rest downstream sewerage to move. In this manner, the wasterwater is transported over a serials of lifts to the vacuum station. Because only the friction losses for slopes not greater than 2% and hydrostatic head losses due to a profile change have been taken into account, wastewater can be lifted to a height of 4.5～6m or carried to a distance of 4km depending on the operating level of the system.