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In the past, aerators used AC motors and gears as power sources to drive working parts. Excessive use of time will cause oil seals and gears to wear, increase oil leakage, and pollute the water. The frequency conversion motor of the frequency conversion aerator has no gear box and no oil leakage, so the pollution is zero and the noise in use is relatively low.
The advantages and disadvantages of ordinary impeller aerators:
Advantages: stable, cheap, easy to maintain accessories, long life
Disadvantages: relatively large noise, high energy consumption
Advantages and disadvantages of frequency conversion aerator
Advantages: low voltage, energy saving, silent, lack of phase without firing machine
Disadvantages: high price, high failure rate, high parts, relatively poor stability
Some manufacturers say that the aerator capacity of the frequency conversion aerator is stronger than the previous aerator when selling, but in fact this is wrong. In fact, from the point of view of the aerator, there are two types of aerators under the same power. The increase effect is al the same. The advantage of the variable frequency aerator is that the same aerator can save 40% to 50% of the power consumption, which is its main value.
In addition, the floating bucket of the variable-frequency aerator is different from the floating bucket of the previous aerator. The net buoyancy of the floating bucket is compatible with the impeller, and it is not allowed to add water as before, so the bucket is designed to be completely sealed. The variable frequency aerator replaces the raw material of the float tank and the stainless steel sealing screws with high-tech nano-material ventilation valve screws, thereby increasing the balance between the air in the float tank and the atmosphere. Air molecules can pass through this valve, but not through Moisture. In this way, the air pressure problem of the sealing in the floating drum is solved and the life of the floating drum can be greatly extended.
After understanding the difference between the two and the advantages of frequency conversion, I believe that when you use the frequency conversion aerator, you will more or less encounter the situation that the machine always sounds an alarm but runs normally. What is the cause?
1. Low current. Because the variable frequency aerator starts very slowly, the current starts from 0 o'clock and the current increases little by little, and the alarm current becomes low.
2. It has been reported that since the inverter can operate from 210 to 500 at wide voltage, the under-voltage and over-voltage aerators still operate normally.
3. Needless to say, the overload is ly caused by phase loss and undervoltage.