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通过用变频器改变风机转速测定主通风机性能曲线和调节风门改变风机工况点测试主通风机性能曲线2种方法对比,以仁寿县天峨乡红光煤矿风机的测定为例。应用合理的测定及计算方法,进行相关参数的计算并绘制风机性能曲线图;通过对2种测定结果的对比分析得出能否利用改变风机频率来测定风机性能的结论。
By comparing the performance of the main fan with the change of the fan speed by adjusting the main fan performance curve and adjusting the damper to test the performance curve of the main fan, this paper takes the measurement of the fan of Hongguang mine in Tian’e Township, Renshou County for example. Appropriate calculation and calculation methods are used to calculate the relevant parameters and plot the fan performance curve. Through the comparative analysis of the two measurement results, it is concluded whether the fan performance can be determined by changing the fan frequency.