PowerChina Nuclear Power Company: Welding Process Benchmarks Drive Quality Upgrades in Power Engineering

At a critical stage in building a new-type power system, PowerChina Nuclear Power Company, guided by the principle of “benchmark leadership, precision planning, and striving for excellence,” is advancing a quality-and-process improvement initiative. It integrates the benchmark-demonstration mechanism into the full project lifecycle, focusing on the core links of pipeline installation and welding to build high-quality, premium projects.

Before construction, the company implements a “benchmark first” approach: selecting key milestones to create full-process physical benchmarks. Installation benchmarks standardize pipeline slope and elevation to ensure stable system operation; welding benchmarks clarify standards for bevel preparation, material matching, and more. Combined with on-site technical briefings and training, they establish a unified quality baseline for construction.

From parameter monitoring for steel-structure and flue/air-duct welding, to three-level acceptance and standardized construction for boiler bodies and steam-turbine piping, and further to refined welding and the application of automatic welding technology in the Zhejiang San’ao Nuclear Power Project, the company strictly controls process quality. Welded pipes in projects such as Zhangqiu gas turbine CHP and Guodian Boxing feature full weld beads and aesthetically pleasing forming, setting an industry benchmark through professional craftsmanship and empowering the high-quality development of power construction.