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我厂油制气车间20t锅炉引风机采用恒速交流电动机拖动,通过调节挡板开度大小来调节风量,这势必造成电能的浪费。若利用变频调速技术,以调节电动机的转速的方法取代调节挡板,将达到节约电能的目的。因为这类负载的输入功率和转速的三次方成正比,利用调速使流量减少,则异步电动机的输入电功率按立方规律下降,从而使耗电量大大降低,节能效果十分显著,达30％以上。
I plant oil gas workshop 20t boiler induced draft fan using a constant speed AC motor drag, by adjusting the baffle size to adjust the amount of wind, which is bound to result in a waste of energy. If the use of frequency control technology to adjust the speed of the motor instead of adjusting the damper, will achieve the purpose of saving electricity. Because this type of load input power and speed is proportional to the third power, the use of speed control to reduce traffic, the asynchronous motor input power by cubic law decreased, so that power consumption greatly reduced, energy-saving effect is very significant, up to 30% or more .