Everyone knows Roots Blower Two blade roots fan and Three leaf Roots blower Is the more blades of Roots blower, the larger the air volume?
Xinqianshun technicians give you answers based on technical knowledge and past experience:
First, let's talk about two factors that affect the air volume:
There are two factors that affect the air volume of Roots blower, namely, the effective volume of the blower and the rotating speed. As long as these two factors affect the air volume of the blower, the influence of the number of blades of Roots blower on the air volume can be ignored.
① The model of Roots blower affects the air volume
Different models of Roots blowers have different sizes and impellers, which will affect the air volume of the blowers. For example, the head shapes of 100 and 200 differ greatly. For a simple example, just like a large fan and a small fan, under the same speed, a large fan will deliver more air.
2. Roots blower motor speed affects air volume
For Roots blower of the same model, the higher the motor speed is, the larger the air volume is. The faster it rotates in unit time, the more air volume it will deliver.
Then the factors that affect the speed include the size of the pulley, the tightness of the belt, and whether the impeller has friction, which will affect the speed of the fan and thus the air volume.
3. Internal leakage size
We know that Roots blower is passively pressurized. At the moment when air is compressed and delivered to the pipeline, the pressure of the front pipeline will send some air back through the gap between the impellers in reverse. The gap between two impellers of Roots blower will form internal leakage. The larger the gap between impellers, the greater the internal leakage, which will affect the air volume of the blower.
summary
A friend who has first contact with Roots blower or does not understand its working principle usually has a misunderstanding that the more impellers there are, the larger the air volume is. This is inaccurate. At present, Roots blower has only two leaves and three leaves. The main factors that affect the air volume of Roots blower are the effective volume and speed.
Generally speaking, the air volume of two blade roots fan is superior to that of three blade roots fan Roots Blower It can be a very large model, and the main feature is that the air volume is large. However, it is inaccurate to simply say that the two leaf fan has a larger air volume than the three leaf fan, because the two leaf fan also has a smaller model, and the three leaf fan also has a larger model, so it is inaccurate to compare the air volume in this way. label: Roots Blower ， Three leaf Roots blower
