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广州抽水蓄能电站水泵水轮机的最大入力和最大出力分别为326.08MW和347.70MW。蜗壳的最大工作水头加水锤压力为775m,最大过流量为72.2m~3/s。蜗壳在浇筑混凝土前进行水压试验。试验水压为最大工作水头与水锤压力之和的1.5倍(114×10~5Pa),蜗壳钢板的厚度达35～80mm,座环组合焊缝厚度达40～90mm,为了保证这种特厚钢板和焊缝的焊接质量,采用了特殊的安装工艺和措施。
The maximum force and the maximum output of the pump-turbine of Guangzhou Pumped Storage Power Station are respectively 326.08MW and 347.70MW. The maximum working pressure of the volute and water hammer pressure is 775m, the maximum over flow is 72.2m ~ 3 / s. Volute pressure test before pouring concrete. The test water pressure is 1.5 times (114 × 10 ~ 5Pa) of the sum of the maximum working water head and water hammer pressure, the thickness of the volute plate steel reaches 35 ~ 80mm, and the thickness of the seat ring assembly weld reaches 40 ~ 90mm. In order to ensure this special Thick steel plate and weld quality, using a special installation process and measures.