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龚咀水电厂系迳流式水力发电站,单机容量为10万千瓦,机组技术供水设计为开式取水系统。随着水库泥沙淤积,技术供水系统淤堵问题日趋严重。现有简陋的净水设施已难以保证技术用水的需要,汛期一到,冷却系统几乎全被淤堵。大量热量无法带走,导致轴承磨损加剧,电机绝缘老化,效率降低,严重威胁了水轮发电机组的安全满发。如82年8月1日,1~#机负荷仅8.3万千瓦时,冷风温度高达48℃,绕组温度最高至
Gongzhuo Hydropower Station 迳 stream-type hydropower station, stand-alone capacity of 100,000 kilowatts, the unit technical water supply is designed to open the water intake system. With the siltation of reservoirs, the problem of clogging of technical water supply system is becoming more and more serious. Existing simple water purification facilities have been difficult to ensure the technical needs of water, the flood season is approaching, almost all of the cooling system clogging. Large amount of heat can not be taken away, resulting in increased wear and tear bearings, motor insulation aging, lower efficiency, a serious threat to the safety of turbine generators. Such as August 1, 1982, 1 ~ # machine load of only 83,000 kilowatt hours, cold air temperature up to 48 ℃, the highest winding temperature to