First of all, is the fan connected directly or belt connection?If it is a belt connection, the fan itself matches the motor, and the speed is adjusted by belt pulley ratio.
According to:The speed is proportional to the air volume, the speed is proportional to the square of the wind pressure, and the speed is proportional to the 3 power.By changing the ratio of the belt wheel and adjusting the speed, the air volume can be enlarged.However, the fan speed has a certain limit, the speed is too high, the fan itself is not enough strength, there will be security risks.So control the speed. Fan reports are usually marked with the highest speed, not exceeding the maximum.If it is connected directly, the 4 pole 1450 turn motor is replaced by the 2 pole 2950 turn motor, the speed is raised, and the air volume is increased.
However, the strength of the fan does not necessarily meet the requirements.Attention to the fan's limit speed, to determine the speed adjustment.Fan three brands: Green grams fan, Shuangcheng fan, Houghton Huafeng machine......Thank you
