The draft tube of hydraulic turbine for Chanwusu powerstaion is made up of draft tube elbow and draft tube cone,its installation will be finished by step.
察汗乌苏电站水轮机的尾水管尾水肘管和尾水锥管,其施工工程也是分步进行的。
In the course of manufacturing the turbine draft tube elbows for both Manwan phase II hydropower plant and Xiaowan hydropower plant the installation of stiffener rings was once carried out directly by elbow orifice unuiformly marking out the reference line.
在漫湾二期和小湾水电站水轮埋件尾水肘管制造过程中,加劲环安装开始采用参考线直接以管口均匀划线的方法进行,这种安装方法无法保证安装准确度,在加劲环接头处出现折弯,外观质量不美观,安装困难且进度缓慢。