Characteristics and Application Field of Cross Flow Fan

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Cross-flow fan, also known as cross-flow fan, the motor shaft and the air into the fan is vertical.
Crossflow fans have the following characteristics:
1, cross-flow fan is to use a relatively long drum-shaped fan impeller to work, the diameter of the drum-shaped blades are relatively large, because the caliber, in order to ensure the overall amount of air circulation based on the use of relatively low speed, Thereby reducing the noise caused by high-speed operation.
2, the fan impeller done balancing: just as the car wheel to do the same dynamic balance, cross-flow fan of the wind wheel also need to do this work, simply, is to maintain the wind wheel in the running state of balance, reduce noise, and Extend fan life. Dynamic balance is a time-consuming work, in fact, the final result may be a certain part of the wind wheel with a weight piece only. However, in what position? How big? Which have a direct impact on the cross-flow fan life.
3, the fans of the fan is carefully calculated, intends to make the distance between the leaf chaos, showing a "not equidistant" situation: This is also very simple, is to make the rotation of the wind wheel and air generated audio " Irregular ", as" a "wind, rather than concentrated in a band on the wind. Noise is narrowband noise and broadband noise two kinds of regular narrowband noise easy to attract people's attention, people upset; and broadband noise is relatively close to the nature of the noise situation, although not eliminate, but relatively "Naiting" that people Not so upset.
4, fan manufacturing materials: fan fan impeller is very long, such a drum-shaped fan if the use of inferior material manufacturing, can save a lot of cost, but not long turn, it will be deformed, the whole Fan is no longer in a straight line, but the middle of sagging, you can imagine, so that drooping leaves in the turn up, what is the high noise, and will bring the entire air curtain machine vibration!
5, the motor: the wind wheel is to rely on the motor to make it run, if the motor is poor quality, can not be normal operation or start fatigue, are not, if the motor of poor quality, it will hear the motor "buzzing" Sound, but also a torture.
Application of cross-flow fan is very broad, air purifier, air curtain, cold wine cabinet, fireplace, freezer, solarium, subway, harvesters and other equipment are used.

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