What is the influence of the fan impeller turning counter?
||| the rotation of the impeller in the opposite direction is caused by two reasons, one is an anti impeller, a fan phase sequence wrong. The fan rotation response will lead to air outlet into the air inlet, the air inlet into the air outlet, not blowing or suction effect, such as indoor air conditioner fan is centrifugal fan, centrifugal fan in the opposite direction, then the air inlet to the outlet, the outlet into the air inlet lead, air conditioning and refrigeration effect is poor, it will cause the waste of power equipment.
Would like to ask why the impeller turned counter, the air volume becomes larger? Answer leaves small wind turbine may be "straight" and the supporting body into a 90 degree angle, but the fan blades are rotating direction, usually the spiral of Archimedes, you can draw a circle, and then draw some spiral line in the circle, the impeller rotation direction only along the spiral direction of rotation, if the inverse rotation makes the pressure head increases, increased torque (from the figure can be obviously found, what do not need professional knowledge, is the individual estimates that if the reverse rotation is to let the wind take the concave wind, certainly). Draw a circle, draw a few lines, remember to follow the convex surface of the rotation, and if you go down the concave direction, obviously is the pressure increases. ||| lack of wind.
Fan impeller on the "wheel plate" is a spiral direction, and installed counter, certainly not ah. I guess the wind doesn't go in, or it's a serious drop in capacity. Fan fan status: my fan is a coal-fired hot stove fan, is the left whirlwind machine. As the impeller is unbalanced, severe vibration, but can not affect the production, bought a new impeller. At that time there was no concern, and it was found that the negative pressure inside the furnace became larger. The steering is the same as the original. The impeller is right-handed after inspection.
