长距离输水管道水锤防护方法研究

Study on Water Hammer Protection Method in Long-Distance Water Conveyance Pipeline

现阶段,随着城市化不断发展,生活水平越来越高,城市供水量逐年增加,长距离输水工程是解决用水量迅速增加的措施之一,有时会出现长距离输水管道,长度可达几十千米,甚至几百千米。可能途径河流、山谷、丘陵、公路、铁路等障碍物,可能出现地下水、岩石、空洞等地质条件。长距离输水管线的水锤防护分析主要包括事故停泵以及提升泵站启泵时的管线水锤防护。输水管线的水锤防护方案有多种选择,但对于长距离输水管线,选择一个积极有效的水锤防护方案以抵抗瞬时产生的压力是一个很大的挑战。

Atthe present stage,with the continuous development of urbanization,the living standard is higher and higher,and the urban water supply is increasing year by year.The long-distance water transmission project is one of the measures to solve the rapid increase of water consumption.Sometimes,there will be long-distance water pipelines,which can reach tens of kilometers or even hundreds of kilometers.It may pass through obstacles such as rivers,valleys,hills,roads and railways,and may have geological conditions such as groundwater,rocks and voids.The water hammer protection analysis of long distance pipeline line mainly includes the water hammer protection of pipeline when the pump is stopped by accident and the pump is started by the pumping station.There are many options for water hammer protection of water transmission lines,but for long-distance water transmission lines,it is a great challenge to choose an active and effective water hammer protection scheme to resist instantaneous pressure.