As an important ventilation and heat dissipation equipment, the stable operation of industrial airfoil double width fan is inseparable from good lubrication. Lubricating oil plays a key role in reducing friction, heat dissipation and cooling, and preventing rust and corrosion during the long-term operation of the fan. Whether the lubricating oil needs to be replaced is related to the performance and life of the fan.
First of all, it can be preliminarily judged from the running time. Generally speaking, according to the instruction manual of the fan, if the continuous operation under normal working conditions reaches a certain length, such as 1000-1500 hours, you should consider checking the condition of the lubricating oil. Even if it seems normal, it is time to focus on the replacement node, because the performance of the lubricating oil will gradually decline over time.
Observing the noise changes during the operation of the fan is an intuitive method. If the fan that originally ran smoothly and had low noise has an abnormal "squeaking" sound or increased friction noise during the recent operation, it is likely that the lubricating oil is insufficient or deteriorated, resulting in increased friction between components. At this time, it is necessary to stop the machine to check the lubricating oil and determine whether it needs to be replaced.
Temperature monitoring is also important. When the fan is running, the motor and bearing parts have a normal operating temperature range. If the lubricating oil fails and the heat dissipation capacity decreases, the temperature of these key parts will increase significantly. Through infrared thermometers and other tools, once the temperature is found to exceed the normal upper limit, such as the temperature of the bearing part is 10-15℃ higher than usual, it is likely that there is a problem with the lubricating oil and it needs to be replaced.
Directly checking the appearance of the lubricating oil can also obtain a lot of information. Normal lubricating oil should be clear and transparent or slightly yellowish, and have a uniform texture. If the lubricating oil becomes turbid, black, or even has metal debris or impurities precipitated, it indicates that the lubricating oil has been contaminated and cannot effectively play a lubricating role. It must be replaced immediately.
It can also be judged from the vibration of the fan. When the lubricating oil is good, the fan runs smoothly and the vibration amplitude is very small. However, when the lubricating oil fails and the fit between components deteriorates, the vibration of the fan will intensify. Through the vibration sensor installed on the fan base or bracket, if the vibration amplitude is detected to exceed 50% of the normal standard, it is necessary to consider replacing the lubricating oil.
In short, to accurately judge whether the industrial airfoil double width fan lubricating oil needs to be replaced, it is necessary to consider many factors. Timely replacement of lubricating oil can ensure efficient and stable operation of the fan, extend the service life of the equipment, and provide continuous and reliable ventilation guarantee for industrial production.
