The Company Successfully Completes B-Level Overhaul at Guangdong Yunfu O&M Project

2025-05-23

On May 23, 2025, the Company successfully completed B-level overhaul of Units 3 and 4 at the Guangdong Yunfu O&M Project.

The overhaul lasted 23 days and covered maintenance of the feedwater pump system, condensate pump system, replacement of furnace fan impellers, thickness measurement of drainage pipelines, and more. A total of 72 standard tasks and 738 self-inspected defect repairs were completed.

During the overhaul, Guangdong Yunfu O&M Project team proactively planned and deployed measures. Following the overhaul plan, they conducted thorough inspections of key risk points and weak spots in unit operation, successfully completing high-quality maintenance on critical equipment such as thickness measurement of the boiler’s four pipes, disassembly and overhaul of the turbine turning device, cleaning of the desulfurization absorber’s turbulators and demister solids, and replacement of internal liners in the 4A coal mill. Facing high-risk operations, the project’s maintenance team assigned safety and technical supervisors to provide on-site monitoring for high-risk activities including Level 1 hot work, working at heights, and confined space operations, ensuring that all procedures remained safe and under control. Thanks to the collective efforts of the entire project team, all unit parameters met standards. Unit 3 was placed on standby three hours ahead of schedule at 8:45 PM on May 22, and Unit 4 resumed standby at 11:00 PM on May 23. The B-level overhaul was successfully completed.

Next, the project team will continue to uphold the work principles of “High Standards, Strict Requirements, Detail Orientation, and Pragmatic Implementation”, strictly adhere to safety production boundaries, and fully commit to the operation and maintenance of the project units, laying a solid safety foundation for high-quality project delivery.