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马来西亚沐若水电站引水隧洞采用两机一洞平行布置,两条隧洞总长分别为2673.88m和2665.77m。在机组检修或流道检查等需要引水机构排空时,采用蜗壳针阀排水花费大量时间,高流速、大流量的积聚效应可能造成严重后果。水轮机组过流对引水隧道储水进行排放,利用机组负荷与转速调整控制下排流量,通过数据计算分析得出机组工况转换时机和运行要求,经过实际验证,保证了电站安全,提高了排水效率,增加了经济指标。
The water diversion tunnel of Muluo Hydropower Station in Malaysia is arranged in parallel with two machines and one tunnel. The total lengths of the two tunnels are respectively 2673.88m and 2665.77m. In the maintenance of the unit or flow check, etc., it is necessary to drain the volute needles to drain a large amount of time, and the accumulation effect of high flow rate and large flow rate may cause serious consequences. Turbine over-flow of water diversion tunnel water discharge, the use of unit load and speed control to control the discharge under the data calculated by the analysis of the conversion timing and operating conditions of the unit requirements, after the actual verification, to ensure the safety of the plant and improve the drainage Efficiency, increased economic indicators.