Research on Pneumatic–liquid On-Line Automatic Balance Technology for High-End Turbine Units

Rotor mass imbalance is the main cause of vibration overload high-end turbine units, which can easily induce a variety failures such as shaft tile and seal wear, blade breakage. The online automatic balancing system solve problem rotor during operation equipment, at same time ensure long-term stable equipment. Therefore, new pneumatic–liquid on-line balance (PLOABS) proposed for has advantages simple structure, no moving parts in rotating element, closed action environment, reversible process maintain original state when restarted. Using ANSYS software, gas driving force internal gas–liquid flow field actuator are simulated analyzed, structure been further optimized. At time, set PLOABS built to conduct experiments. results showed that amplitude was reduced from 18.3 10.6 μm, verified feasibility effectiveness technology laid foundation subsequent engineering application technology.