The cooling tower fan is an important equipment for the production enterprises. Due to the long running in the water vapor environment, the conditions are bad and the time is long, and all kinds of faults are easy to appear. Is the most key part and cooling tower, fan speed reducer and motor, in the long run of bad operation environment, can produce parts corrosion fatigue, lack of oil wear, material, causing loose parts, friction intensified, the phenomenon such as dynamic imbalance, jitter, if cannot be handled in time, will cause bearing burning, engine damage, even the malignant accident of blade fracture. So monitoring speed reducer and the motor running condition is very important, and the ever popular means of: the oil temperature, vibration, oil level probe three parameters, the real-time monitoring its running status, but for the warning before failure, and the reason for the failure but not real-time analysis. If join fault diagnosis equipment: (1) early warning: display equipment problems to eventually cannot use and long cycle, give owner to arrange inspection time, avoid sudden impact production downtime. (2) intelligent fault diagnosis: the problem of the fan speed reducer is automatically diagnosed in time, which is convenient for maintenance. (3) reduce the amount of inspection, and now large cooling tower operation maintenance personnel usually 2-3 hours to climb the top inspection time, especially in the north, the cold weather, the inspection work very hard, but also can only look at the outside, in the operation of the fan fan fault intelligent diagnosis equipment, the introduction of improved degree of intelligent equipment, security is greatly improved, also can reduce the inspection quantity.

The reducer is a kind of power transmission mechanism, according to the use of gear reducer, worm reducer and planetary gear reducer, according to the transmission series of single and multistage reducer. Common faults of reducer include heating, oil leakage, gear wear, bearing failure, etc. Through the real-time acquisition of the vibration, temperature and liquid level of the reducer, the fault diagnosis of the speed reducer is realized. On January 15, 2017, the system''s warning and deceleration box appeared in the oil road leakage fault, and the mechanical seal of the deceleration machine was diagnosed, which effectively prevented the further serious damage of the reducer.