Three-lobe Roots fan and two-lobe Roots fan with only one leaf difference between them, in addition to what is the difference between them?Roots FansI'll take you through it.
1, in the case of the same center distance and radius of the outer circle, the three-lobe Roots blower of the circular leaf type has a larger displacement than that of the two-lobe. Involute lobe type Roots blower displacement and rotor head number has no relationship.
2, the mechanical properties of the three-blade rotor is better, compared with the two-blade can better ensure the clearance between the impeller and its impeller and casing.
3, due to the characteristics of the leaf type, three-leaf pulsation than two-leaf good, so the most obvious advantage is: greatly reduce the vibration and noise, effectively reduce the noise of more than 20 decibels.
4, in the three-lobe rotor bearing life than in the two-lobe on the use of long 15% or so.
5, three-lobe Roots fan to achieve the pressure is much higher than the two-lobe fan.
6, in the same efficiency, three-lobe Roots fan more energy-saving.
7, in the gap size and working conditions of the same case, three-lobe blower leakage flow tends to be smaller than the two-lobe.