Heavy-duty Steam Turbine Rotor Turntable Launched, Overcoming Challenges in the Transportation of Large Energy Equipment

As the core component of power conversion, the quality distribution uniformity and assembly accuracy of the steam turbine rotor directly determine the operational efficiency, safety, and stability of the unit. Currently, ultra-supercritical thermal power steam turbines and large nuclear power steam turbines of one million kilowatts have become mainstream in the market. Their rotors generally weigh over 200 tons, and some nuclear power rotors even weigh over 400 tons. The traditional assembly methods, such as fixed support and segmented lifting, not only pose high lifting risks and significant positioning errors but also fail to achieve continuous 360° rotation adjustment. This results in inefficiencies in key processes such as rotor dynamic balance testing and blade assembly, becoming a "bottleneck" that restricts the production capacity enhancement of large steam turbines.

To address this industry pain point, Zhongxin Rotation Company established a special R&D team. After over a year of technical challenges and multiple rounds of prototype testing, the team successfully broke through three core technologies: "heavy-load adaptive balance control technology", "ultra-large diameter rotary support design", and "multi-dimensional precision real-time calibration system". According to the head of the R&D project, Mr. Xue from Zhongxin Rotation Company, the rotary table adopts a "dual-drive redundancy + annular double-layer teeth" structural design, with a maximum load capacity of up to 400 tons, which can accommodate the assembly needs of 600,000 to 1,200,000 kilowatt-class thermal power and nuclear power turbine rotors. Equipped with a high-precision servo drive system, the rotary table can control the rotation positioning accuracy within ±0.5mm for a table with a diameter of 13 meters, achieving a 70% improvement in accuracy compared to traditional equipment and significantly reducing the number of iterations required for rotor dynamic balance adjustment.