遠心ファンとクロス-フローファンの違い

さまざまなパフォーマンス特性

遠心ファン：遠心ファンは本質的に可変流量および定圧装置です。 回転速度が一定の場合、遠心ファンの圧力-流量の理論曲線は直線になります。 実際の特性曲線は、内部損失のために湾曲しています。 遠心ファンで発生する圧力は、吸気温度や密度の変化に大きく影響されます。 与えられた吸気量に対して、最高の吸気温度（最低の空気密度）が最低の圧力を生み出します。 与えられた圧力対流量特性曲線に対して、電力対流量特性曲線があります。 ブロワーが一定の速度で動作している場合、特定の流量に対して、吸気温度が低下するにつれて必要な電力が増加します。

Cross-flow fan: The cross-flow fan is mainly composed of impeller, air duct and motor. The impeller material is generally aluminum alloy or engineering plastic. The aluminum alloy impeller has high strength, light weight and high temperature resistance, and can maintain long-term stable operation without deformation; the plastic impeller is injection molded by a mold and then welded by ultrasonic waves. The air duct is generally stamped and formed by metal sheet, and it can also be cast in plastic or aluminum alloy. The casing adopts a streamlined design, which can effectively reduce the loss of airflow and greatly improve the working efficiency of the fan. The motor is the power part of the cross-flow fan, which can be powered by AC or DC. The AC power supply mainly includes the shaded pole motor and the capacitor starter motor, and the DC power supply is the DC brushless motor. The drive motor is generally installed flexibly with the impeller and fixed on the air duct. ①The axial length is not limited, and the length of the impeller can be arbitrarily selected according to different use requirements; ②The airflow flows through the impeller and is affected by the two forces of the blades, so the airflow can reach a long distance; ③No turbulence, the air outlet ④Because the airflow is forced to turn in the impeller, the head loss is large and the efficiency is low.

https://www.jnblower.com/