塔尕克一级水电站工程压力钢管制作安装工艺及特点

摘要

The penstock of Tagake 1st-stage Hydropower Station is designed as shallow buried pipe,consisting of two pipes,2×270 sections with a total length of 522.894m. Each pipe has the maximum diversion flow of 37.9m3/s, the thickness of 12~26mm and inner diameter of 3.8~2.8m variable following pressure change. The steel pipe is made of Q235C carbon steel. Digital control semi-automatic cutting machine was used to upgrade the mechanical and automatic degree of fabrication,effectively reduce energy consumption. An introduction was made on the tech⁃nical procedures and characteristics of penstock fabrication and installation as well as the quality control measures.%塔尕克一级水电站工程压力钢管按浅埋管设计，共布置2条，全长522.894 m，共计2×270节。内径3.8 m，单管最大引水流量37.9 m3/s，钢管厚度为12～26 mm，随压力分段变化，管径由3.8 m变径至2.8 m。压力钢管均采用Q235C碳素钢制作，制作中使用数控半自动切割机切割使施工过程机械化、自动化程度提高，有效降低生产能耗，介绍了该压力钢管制作安装的工艺流程、特点及质量控制措施。