龙滩水电站蜗壳凑合节安装工艺

Installation Technique of the Expansion Joint of Spiral Case for Longtan Hydropower Station

为了保证蜗壳凑合节瓦片的下料质量、吊装设备安全可靠和焊接质量,切实可行和科学合理的安装工艺将是极其关键的一项工作内容。龙滩水电站安装完毕的5号机蜗壳凑合节的下料方法、安装与焊接工艺都取得了良好的效果,对同类机组会有一定的借鉴作用。

In order to ensure the material quality and welding quality of expansion joint of spiral case, and the safety and reliability of hoisting equipment, the practical, scientific and reasonable installation technique is key and essential. The cutting method, installation and welding technique of the expansion joint of spiral case of No. 5 generating unit of Longtan Hydropower Station have gained good effectiveness, which can be used for reference for the similar generating unit.