On August 21, the domestically developed first-stage turbine blade of the “Huadian Ruiyi” F-class gas turbine achieved an equivalent service duration of more than 2,000 hours at Jiangsu Huadian Qishuyan Power Generation Co., Ltd., setting a new record for the actual operating time of F-class heavy-duty gas turbine first-stage blades in China. This milestone marks a key breakthrough in the independent research and development of high-end turbine machinery core components.
The 2,000-hour demonstration project of the F-class turbine blade is a major task under the State-owned Assets Supervision and Administration Commission of the State Council (SASAC)’s program for expanding the application of central state-owned enterprises’ scientific and technological achievements.
Turbine blades, the core components of gas and steam turbines, endure extreme conditions of high temperature, pressure, and rotational speed. Their design is complex, requiring advanced manufacturing techniques and robust materials. Key technologies include high-temperature alloy material development, precision casting, and specialized machining. Historically, China depended on imported high-end turbine blades, facing high costs and potential supply chain disruptions.
Since its installation in April this year, the verified blade has played an important role in summer peak power supply in East China. It has successfully completed more than 100 turbine starts, demonstrating its high-temperature resistance, precision casting, and advanced machining capabilities. The achievement signifies that China has basically realized full-process independent control of F-class heavy-duty gas turbine core hot components, covering design and manufacturing, special processing, testing and inspection, and service evaluation.
(Executive editor: Wang Ruoting)
