西门子350MW汽轮机低压外上缸组合及焊接变形控制

The Assembly Method of LP Outter Upper Casing of 350 MW Steam Turbine and the Controlling of Welding Deform of Siemens

针对西门子 N- 30 - 2 *1 0型 35 0 MW汽轮机低压缸结构特点 ,分析了阳城电厂一期工程 1号、 2号机组参照西门子公司提供的组合工艺进行施工时产生变形的原因。在 3号机组合时采取了针对性的防止变形措施。组合结果表明 ,所采取的措施是有效的 。

With the structure character of LP casing of siemens's N 30 210 350 MW steam turbine.The paper analyze the reason of deformation while No 1 and No 2 units assembly according to the method of siemens.Apply effectire measure to prevent deformation while No 3 units was assembling.The result have shown that the measure was effective.It controls deformation usefully.