轴流转桨机组安装中心及高程基准的确定

Determination of Installation Center and Elevation Datum of Axial Flow Propeller Unit

轴流转桨机组主机安装主要分水轮发电机预埋部分安装、水轮机安装、发电机安装3部分,各部件安装前均需根据机组中心及高程基准进行定位调整,因各阶段现场施工条件及环境不同,机组安装各阶段中心及高程基准选择也存在不同,机组中心及高程基准确定极为重要,直接影响机组安装质量及机组运行后振摆值,研究及总结轴流转桨式机组安装各阶段机组安装最佳中心及高程基准。

Installation of main engine of axial flow rotator unit is mainly divided into three parts: installation of embedded part of hydraulic generator, installation of hydraulic turbine and installation of generator. All components must be positioned and adjusted according to unit center and elevation datum before installation.The selection of center and elevation datum in each stage of unit installation is also different due to different construction conditions and environment in each stage. The determination of unit center and elevation datum is very important, which directly affects unit installation quality and unit oscillation after operation. This paper studies and summarizes the best center and elevation datum for unit installation of axial flow propeller unit in each stage.