Performance analysis and experimental study of pneumatic-liquid self-recovery control system of turbo-generator unit
In view of the problem that the unbalance of mass causes the unit vibration to exceed the standard,which seriously affects the safe and stable operation of the equipment,a pneumatic-liquid self-recovery control system was designed,which can restrain the unbalance vibration of the rotor online in real time.The core of the actuator design is to use the compressed gas to drive the balance liquid to achieve mass transfer,so the calculation of the gas driving force is particularly important.By comprehensively considering the conditions of centrifugal force,liquid flow speed and connecting pipe center point,the actual minimum driving force of the actuator was obtained by comprehensive analysis with the experimental data of liquid transfer under the conditions of two gas driving forces,and the effectiveness of the self-recovery control system was verified by experiments.The self-recovery control system can reduce the unbalance vibration of the rotor to be balanced from 13μm to 2.1μm,and reduce the amplitude by more than 80%.
self-recovery controllarge rotary equipmentpneumatic-liquid type
万方数据
维普
