Išcentrinių ir kryžminio srauto{0}}ventiliatorių skirtumai

Skirtingos veikimo charakteristikos

Išcentrinis ventiliatorius: išcentrinis ventiliatorius iš esmės yra kintamo srauto ir pastovaus slėgio įtaisas. Kai sukimosi greitis yra pastovus, išcentrinio ventiliatoriaus slėgio{0}}tekėjimo teorinė kreivė turi būti tiesi. Tikroji charakteristikos kreivė yra išlenkta dėl vidinių nuostolių. Išcentriniame ventiliatoriuje sukuriamą slėgį labai veikia įeinančio oro temperatūros arba tankio pokyčiai. Esant tam tikram įsiurbiamo oro kiekiui, aukščiausia įsiurbiamo oro temperatūra (mažiausias oro tankis) sukuria mažiausią slėgį. Tam tikros slėgio ir srauto charakteristikų kreivė turi galios ir srauto charakteristikų kreivę. Kai orapūtė veikia pastoviu greičiu, esant tam tikram srautui, reikiama galia didėja mažėjant įsiurbiamo oro temperatūrai.

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.

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