Experimental investigation on pump efficiency and cavitation performance of Huang-jin-xia hydro-junction

In this paper, the performance of A1515 centrifugal pump was studied on a high parameters and precision large general test platform in combination with Huang-jin-xia hydro-junction Hanjiang-to-Weihe River valley water diversion project. The efficiency characteristics cavitation were tested measured respectively. All collected recorded through acquisition system. experimental results show that optimal weighted average is 92.46% 92.18%, design point 92.39%, all which meet requirements. After conversion to prototype pump, value at each working higher than guaranteed value. hump margin 3.03%, greater 2% required meets whole normal operating range, model comprehensive error less ±0.2%. research provide reference for pump.