FBM17 DM400YT
FBM17 DM400YT
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FBM17 DM400YT
那么,其计算方法怎么得到?
根据风机理论,风机运行时在需要流量变化时,可以采用阀门或者挡板进行调节,其输入功率的计算公式为:
Pnn=P×Hnn×Qnn
其中:Hnn=U-(U-1) Q2nn U为系统流量为零时压力极值
所以,采用风门挡板时的风机输入功率为:
Pnn=P×Hnn×Qnn=P×[U-(U-1) Q2nn]×Qnn
式中:Pnn为某个状态下的输入功率标么值;Hnn为某个状态下的压力标么值;Qnn为某个状态下的流量标么值;P为额定状态下的输入功率。
FBM17 DM400YT
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