Six principles of fume purification equipment of fan selection:

　　1、山東通風管道加工計算管網阻力，管網阻力包括局部阻力及沿程阻力。 A、局部阻力包括：變徑管、彎頭、進風口、出風口等阻力 B、沿程阻力：直管的阻力;

　　1, calculate pipe network resistance, pipe network resistance including local resistance and along resistance. A, local resistance include: variable pipe, elbow, inlet, outlet and other resistance B, along the resistance: straight pipe resistance;

　　2、根據管網阻力，加上設備阻力，再加15%的系數即為風機的全壓。注：風機風量=設備處理風量;

　　2, according to the pipe network resistance, plus equipment resistance, plus 15% safety factor, that is the total pressure of the fan. Note: Fan volume = equipment handling air volume;

　　3、根據風機的全壓、風量，考慮風機的比噪聲級，在同參數條件下，選擇比噪聲級低的風機可以大大減少噪聲;

　　3, according to the fan's total pressure and air volume, considering the specific noise level of fan, under the same parameter condition, the fan with lower noise level can reduce the noise greatly;

　　4、在選擇風機時，以三相四線制為佳選擇，如用戶無三相四線制電源，則在風機和設備選型時請注意說明;

　　4, in the choice of fan, the three-phase four wire system is the best choice, such as the user without three-phase four wire power supply, in the fan and equipment selection, please note;

　　5、單臺處理風量≥8000m3/h，必須選用三相四線制風機;

　　5, a single volume is more than 8000m3/h, must use the three-phase four wire fan;

　　6、風機應有獨立的電源開關。

　　6. Fan should have independent power switch.

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　　In this paper, the ventilation pipe processing in Shandong to provide you with our website is: http://m.pvcbox.cn/, we will wholeheartedly provide you with better service, you are welcome to visit!

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