Maintenance method of boiler fan actuator trouble while boiler is in operation

摘要

The invention blower fan drive is installed in the ventilation system of a coal-fired boiler failure occurs When to separate drive without stopping the blower only by way of the maintenance of power generation coal-fired boiler with a reduction of the blower fan control drive failure that prevents the equipment efficiency degradation due to start and stop depending on the repair jeongbiham, power output fixing a driving mode, to change the control mode switching, and the steps of the virtual input signal; Motor unit and control unit connected to the wing separation step drive components parts to separate the worm gear; A driving device for performing a separate separation position shown by measuring the shaft can rotate relative to the lower limit switch localization step; Replacing the failed part of the drive system and the drive system comprising: maintenance repair; The phase, the lower limit switch and the driving apparatus for correcting, based on the variable resistance indirect calibration step; After adjusting the position confirmed by phase separation around the drive position command value for adjusting the control signal to the drive device to be positioned around the separation position; Drive power-off step to prevent the untimely operation in the driving device connected to the process; Parts and assembly steps to connect the separate gear box; Is performed in a step to normalize drive operation mode to the normal operation mode to its original position.