泵系统管线局部凸起水锤防护措施的研究

Water hammer protection for pipe with local salience in pump system

针对舒安泵站供水系统的特点 ,应用水锤基本理论和特征线方法 ,对系统无任何防护措施和加设水锤防护措施的事故停泵水力过渡过程进行了计算机数值模拟 ,对空气阀和单向调压塔两种防管道负压措施进行了比较分析 .计算结果表明 ,在局部凸起点附近加装单向调压塔更能较好地避免液柱分离的发生 .

In accordance with the characteristic of water supply system at Shu′an Pump Station, computer simulation was made in the transition process of accidental pump-stop with protection measures and without measures by the basic theories of water hammer and the method of characteristic line. The air-valve was compared with one-way tank, both of which are used for avoiding liquid column separation in the pipe. The calculating results showed that one-way tank was effective and important to improve reliability of pump system and its stability.