长距离压力输水工程水锤防护研究

Research on protection of water hammer in long-distance pressurized water transfer pipeline project

水锤是影响长距离压力输水工程安全运行的一个极为重要的因素.针对长距离压力输水工程特点,采用水锤计算的特征线法,对两座长距离压力输水工程的水锤防护措施进行了分析.优化了一长距离有压重力输水工程防护水锤的蝶阀关闭过程.提出了空气阀组概念,水锤分析表明,采用空气阀组和两阶段关闭蝶阀联合作用可有效地防护长距离加压输水工程中水锤危害.

Based on the engineering features, water hammer protection measures for practical long distance water transfer works were studied by the calculation of characteristic method in this paper. The butterfly valve closing procedure of water transfer work from Fengjiashan Reservoir to Baoji city is optimized for water hammer protection, and the concept of air valve set is proposed. The study shows that water hammer of long distance pressurized water transfer pipeline projects can be effectively protected by jointly using air valve set and a two-staged closing butterfly valve.