邕宁水利枢纽电站机组主要参数选择

Comparison of Main Parameters for Units in Yongning Hydraulic Complex

为合理选择水电站机组主要参数,笔者通过对邕宁水利枢纽电站机组机型、机组台数、额定水头、比转速、额定转速、转轮直径等参数进行比选,确定了装机规模为6台灯泡贯流式机组及单机容量,额定水头为3.7 m,额定转速为68.2 r/min,转轮直径为6.75 m,使电站近期出力达到57.6 MW。电站经过近4 a的运行,机组运行稳定,电能指标达到设计要求。该电站机组参数的选择方法能为同类型电站机组参数选择提供参考。

In order to reasonably select the main parameters of the hydropower station unit the author compares and selects the parameters such as the unit model number of units rated head specific speed rated speed and runner diameter of the Yongning Hydraulic Complex power station.The installed capacity is determined to be 6 bulb tubular units and single unit capacity.The rated head is 3.7 m the rated speed is 68.2 r/min and the runner diameter is 6.75 m so that the recent output of the power station reaches 57.6 MW.After nearly four years of operation the power station has achieved stable unit operation and electrical energy indicators meet the design requirements.The selection method of unit parameters of the power station can provide reference for the selection of unit parameters of the same type of power station.