PCCP输水管道漏水原因与防漏措施的研究

Cause Analysis of Water Leakage and Research on Anti-leakage Measures for PCCP Water Transmission Pipeline

呼和浩特市引黄工程的PCCP管每年均发生漏水事故,而且多集中在用水高峰期及冬春两季,经常需要调整阀门,控制水压后发生漏水次数较多。漏水大多发生在承插口的薄弱部位,地质条件不良地区以及受气候温差较大条件的影响。文章就PCCP管输水管道漏水原因进行分析并采用相应的防漏措施。

There are water leakage accidents in Hohhot Yellow River Diversion Project Pipeline every year, and they centralize on water utilization peak period, in winter and spring, thereby the valves always needs adjusting. The water leakage frequently occurs after control of water pressure.The majority of water leakage accidents caused by large temperature difference happen at the vulnerable part of bell mouth and undesirable areas. The paper analyses the cause of water leakage, elaborates the corresponding measures.