CPR1000核岛安装主管道自动焊精确组对技术

Precise Prefabrication of Primary Pipes Automatic Welding in CPR1000 Nuclear Island Installation

主管道的精确组对是主管道自动焊技术成功实施的前提。立足于各个主设备及主管道的几何特征,提出针对性的竣工尺寸测量方案,据此计算出主管道坡口加工数据,以期消化主设备的制造误差;然后通过制定坡口加工方案保证坡口加工精度,从而最终保证主管道安装精确组对。

The precise prefabrication of primary pipes is a prerequisite for the successful implementation of primary pipes automatic welding technology. Based on the geometric characteristics of the primary equipments （including RPV, SG and RCP） and primary pipes, it presents a pertinent completion size measurement scheme for calculating the processing data of primary pipes weld grooves, in order to digest the primary equipments manufacture error; and then through the development of the weld grooves processing program to ensure the machining accuracy of the weld grooves, and ultimately to ensure the precise prefabrication of primary pipes automatic welding in CPR1000 nuclear island installation.