Quality control of Kaplan turbine generator unit installation

Aiming at the installation of hydro-generator of Shenxigou Hydropower Station,for the important parts,concealed works and key processes,we organized a united group to perform quality acceptance which was lead by supervision and consisted of employer,manufacturer,designer,and constructor.We mainly introduce the control of welding and displacement during the unit installation,including assembly welding of rotor spider,assembly welding control of lower bracket,and deformation control of concrete placement.The installation technology of turbine runner and conical tube has been optimized.The optimized technology is convenient to construction and reducing construction period,and guarantees the installation quality.