Difference between direct connected roots blower and belt connected roots blower and precautions for model selection

The direct connected roots blower and the belt connected roots blower have their own characteristics, with the following differences:

1. The model selection flexibility is different. The belt coupling can select the motor power and blower speed according to the requirements of different air volume and pressure, so as to achieve the best use state, energy saving and noise reduction. For direct connection, only one type of machine can be equipped with one type of motor. If this amount of gas cannot be used, there will be waste. If the air outlet is closed manually, the air pressure may be too high, and the motor may be burned out (so the direct model selection should be more accurate to achieve high efficiency and low failure);

2. The transmission efficiency is different. After a long time of use, the belt will become loose and aged (it needs to be replaced regularly). The transmission efficiency is slightly lower than that of the direct connection, so the air volume of the direct connection is generally more stable under the same power;

3. The floor structure is different. The belt connection is wider, but the length direction is shorter than that of the straight connection. It can be used as a reference for model selection design.

There are various specifications and models of the direct connected Roots blower, and the blower model and material can be flexibly selected according to different customer needs.

1. Select the fan model according to the actual production demand. The main parameters include the air volume, pressure, speed, energy consumption, etc. of Roots blower, including cast iron Roots blower, special gas conveying blower, dense Roots blower, stainless steel Roots blower, etc;

2. Low noise Roots blower shall be selected for the working environment with high noise requirements on site; When the transported gas is flammable and explosive, explosion-proof fan processed by special process should be selected with good sealing to avoid safety accidents caused by gas leakage; When conveying clean air or other neutral inert gases, ordinary cast iron roots blower can be selected; When the transported gas is corrosive, stainless steel roots blower and other materials with strong corrosion resistance should be selected.