汉江碾盘山电站水力一体拦导漂排设计研究

汉江流域水草漂浮物多发,影响水生态环境、发电、航运、供水等,故对碾盘山水电站拦导漂排设计方案进行了比选研究。当前水电站工程漂浮物治理多依靠人力与船只机械清理,存在安全、失控、低效等诸多问题,不利于工程发挥长期稳定效果。根据汉江漂浮物特征及碾盘山枢纽运行特点,经对设计方案结构荷载和安全稳定分析,运用已开发的水力一体拦导漂浮排技术装备和实用成果,在电站引水渠布置水力一体拦导漂排,将漂浮物引导至泄水闸适时开闸排向下游。该方案有利于充分发挥电站发电效益,保障工程安全运行。水力一体治漂适应漂浮物规律,系列技术适应各类工程综合治漂,解决工程治漂短板。

Design of Hydraulic Integrated Floating Raft for Intercepting and Diverting Floating Debris for Nianpanshan Hydropower Station on Hanjiang River

Hanjiang River Basin is subject to frequent floating aquatic plants which affect the ecological environment, power generation, shipping, and water supply. At present, the treatment of floating objects for hydropower projects mostly relies on human labor or mechanical action, which has safety problems and low efficiency. According to the characteristics of floating debris in Hanjiang River and the operation of Nianpanshan hydropower project, we adopt a hydraulic integrated floating raft at the approach channel to guide and discharge the floating debris to the sluice gate based on analyzing and comparing the load and structural safety and stability in the design schemes. The floating debris is discharged to the downstream through the sluice gate in due course. This developed technical equipment and the test results are conducive to the generation benefits of the power station and in the meantime ensure the safe operation of the project. The integrated hydraulic treatment adapts to the needs of various engineering and overcomes the difficulties in treating floating debris.