大化水电站右岸厂房污物卡阻机组导叶原因分析及应对措施探讨

Cause Analysis and Countermeasure Study of Guide Blade Blocked by Sewage on Right-bank Powerhouse of Dahua Hydropower Station

大化水电站自建成投产以来,由于库区漂浮物较多,每年汛期库区被洪水夹带的农作物废弃物、树根、竹枝等大量堆积在进水口前,由于清污设施不够完善,无法及时对污物进行清除,多次造成树根、杂物卡阻水电站机组导叶的事故。该文对产生的原因和危害性进行了分析探讨并提出了应对措施,从而有效地提高了水电站运行安全可靠性和电厂经济效益。

Since Dahua Hydropower Station was put into operation a large number of crop wastes roots and bamboo havebeen accumulated in front of the reservoir inlet during annual flood season because of more floaters in the reservoir area. Thesewage can not be removed in time due to the insufficient sewage disposal facilities which blocks guide blade of unit in thehydropower station. This paper analyzes the cause and harmfulness and puts forward countermeasures so as to effectivelyimprove operation safety and reliability as well as economic benefits of the hydropower station.