Zastosowanie charakterystyk rzeczywistego obciążenia reaktora polimeryzacji do stanów dynamicznych układu napędowego z silnikiem indukcyjnym specjalnego wykonania

In the paper the drive system for polymerization reactor based on the specially designed induction motor in a pipe version, type SAR-55/1500/09, is presented. The motor was made in the frame of the government grant [1]. The phenomena causing the additional load torques are described. The analytical dependencies for calculation of the additional internal torques of the motor are given. These torques come from the sliding friction in large-size sidle bearing and the agglutination of the rotor with the stator. The analytical dependencies for calculation of the external torques of the drive system are also given. These torques came from the load of the mixer caused by the ethylene stream and the charge of the mixer in the lower chamber of the polymerization reactor. The mathematical model of the studied system including the equations of dynamic equilibrium for the mechanical part is presented. The exemplary computational analysis was conducted for reversing the motor at the full load caused by the fan-depended torque and for the full charge of the mixer and the partial agglutination of the motor rotor with its stator.