Title：Brief introduction of the welding technology of the turbine stay ring in Lianghekou Hydropower Station
作者：贾栋林
关键词：水轮机,座环,组装,焊接,施工工艺
论文类型：期刊论文
论文来源：水电站机电技术 2019
摘要：根据雅砻江两河口水电站500MW水轮机座环的结构特点，结合小湾、糯扎渡、黄登水电站座环的安装施工经验，以及现场焊接变形实时监测和整改技术，严格执行座环组焊质量控制，分析总结座环组焊施工关键控制点，且分体式座环组焊质量得到有效控制，减少了焊接变形，控制尺寸优于标准要求，为后续座环现场组焊提供了技术支持，为同类型水电站座环现场组装焊接提供参考。
Abstract：According to the structural characteristics of the stay ring of 500MW turbine in Lianghekou Hydropower Station of Yalong River, combined with the installation and construction experience of the stay ring of Xiaowan, Nuozhadu and huangdeng hydropower stations, as well as the on-site welding deformation real-time monitoring and rectification technology, the quality control of the stay ring assembly and welding is strictly carried out, the key control points of the stay ring assembly and welding construction are analyzed and summarized, and the split stay ring assembly and welding are effectively controlled Quality, reduce the welding deformation, the control size is better than the standard requirements, which provides technical support for the subsequent field assembly and welding of stay ring, and provides reference for the field assembly and welding of stay ring of the same type of hydropower station.
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