风管尺寸表风管截面积风管尺寸200250320400500630800100012501600风管尺寸风管截面积0.20.250.320.40.50.630.811.251.62000.20.040.050.060.080.100.130.160.200.250.322500.250.050.070.080.100.130.160.200.250.310.403200.320.060.080.100.130.160.200.260.320.400.514000.40.080.100.130.160.200.250.320.400.500.5000.50.100.130.160.200.250.320.400.500.630.806300.630.130.160.200.250.320.400.500.630.7910.808000.80.160.200.260.320.400.500.0.801.001.28100010.200.250.320.400.500.630.801.001.251.6012501.250.250.310.400.500.630.791.001.251.562.0016001.60.320.400.510.0.801.011.281.602.002.56风量表（m3/h）风管截面积0.040.050.060.070.080.100.130.160.200.250.32支管风量（3-干管风量（5-主管风量（7-5m/s）7m/s）9m/s）576720922936115214401814230428803600460881080138214041728216027223453205400691211521440184318722304288036294608576072009216风管截面积0.40.5120.0.81.0081.251.622.56支管风量（3-干管风量（5-主管风量（7-5m/s）7m/s）9m/s）5760737392161152014515180002304028800368801105913824172802177327000345604320055296115201474618432230402903036000460805760073728D(b)≤320320≤D(b)≤450450≤D(b)≤630630≤D(b)≤10001000≤D(b)≤12501250≤D(b)≤2000风管板材厚度（mm)矩形风管风管直径或边长园形风管中、低压0.50.60.750.7511.20.50.60.60.7511高压0.750.750.75111.21.51.52222除尘风管注：设计时风管风量按实际80%风量考虑风管尺寸
