Routine maintenance is necessary for the big air industrial fan, in addition to ensuring the stability of the structural components, ensuring the good operation of the motor is also an important step. The following is the introduction to routine maintenance before the motor starts when it starts and during the operation of the motor.
1. Before the motor starts
Before starting the big air industrial fan, staff must check the power supply to ensure whether it has electricity or not and whether the voltage is normal and stable. If the voltage is unstable, it will cause great harm to the motor. Besides, it is necessary to ensure the motor starter is normal. It is also necessary to test the integrity of the starter's components, well contact performance, and the correctness of the extension cord. Particularly, the examination of the motor itself is also an inseparable work, which requires the examination of the junction board of the motor and checks the line connector. At the same time, it is also necessary to ensure the fuse specifications used by the motor are in line with the motor's working specifications. Finally, before starting the motor, it is necessary to test the working environment and working place of the motor and remove debris and dust nearby the motor to make sure that is it in a good working environment. Most of them require manufacturers of the big air industrial fan to check during installation and after-sales maintenance.
2. When the motor starts
When starting a big air industrial fan, if the motor does not respond after the power is turned on(i.e. the fan does not operate), the motor power should be disconnected immediately. When the motor is just started, it is necessary to test and observe whether the motor's transmission device works normally. In case of abnormal conditions, it is necessary to cut off the motor's power supply immediately and remove the fault motor, the motor can be started again when the fault is determined to be eliminated and the founded part of the fault should be focused on. When starting the motor, it is necessary to operate the motor in turn according to the motor operation instructions. For example, when the motor is started, the motor switch should be first placed in the starting position. When the motor enters a stable working state, then adjust the position of the motor switch to the operating state.
3. During the operation of the motor
During the operation of the motor, relevant staff should monitor the running state of the motor all the time. It is mainly necessary to monitor the temperature of the motor to prevent the motor from operating in a high-temperature state. The motor is prone to excessive temperature in the state of large load, which requires staff to monitor it to ensure that the temperature of the motor will not be higher than the maximum design temperature of the normal use of the motor.
The temperature of the motor can be monitored by touching it by hand. In addition, it can also be measured by water dripping in the motor shell and it can be judged by observing the evaporation process of water droplets. The most scientific method is to use the thermometer to test the temperature of the motor, which is a more accurate method. If the temperature of the motor is too high during operation, it is necessary to stop the motor immediately and cut off its power supply. And it can be used after removing the motor fault by the technician.
Finally, during the motor in the process of operation, it should be stopped immediately when abnormal violent vibration, abnormal sound, and the pungent odor of cock appear. And maintain the motor or contact manufacturers of the big air industrial fan to have home inspection maintenance.
Source: Gaxiaofan Press Department
Publication Date: 10/7/2020
