钢板制矩形通风管道计算表

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1、钢板制矩形通风管道计算表表1动压（毫米水柱）风速（米/秒）外边长A×B（毫米）上行——风量（米3/小时）下行——单位摩擦阻力（毫米水柱/米）120×120160×120200×120160×160250×120200×160250×160200×200250×200320×160250×250320×200400×2000.2452.01000.0621340.0521680.0471800.0432090.0422250.0372810.0382820.0323520.0283600.0304410.0244510.0255650.0220.2702.11050.0681410

2、.0571770.0511890.0472200.0462370.0412950.0362960.0353700.0313780.0334630.0274740.0275940.0250.2962.21100.0741480.0621850.0551980.0512300.0502480.0443090.0403100.0383870.0343960.0354850.0294970.0306220.0270.3242.31150.0801540.0671930.0602070.0552410.0552590.0483230.0433250.0424050.0364140.0385

3、070.0315190.0326500.0290.3532.41200.0861610.0732020.0652160.0602510.0592700.0523370.0463390.0454220.0394320.0425290.0345420.0356780.0310.3832.51250.0931680.0782100.0702250.0642620.0632820.0563510.0503530.0484400.0424500.0455510.0375640.0377070.0340.4142.61300.1001750.0842190.0752340.0692720.0

4、682930.0603650.0543670.0524580.0464680.0485730.0395870.0407350.0360.4472.71350.1071810.0902270.0802430.0742830.0733040.0653790.0583810.0564750.0494860.0525950.0426100.0437630.0390.4802.81400.1141880.0962360.0862520.0792930.0783150.0693930.0623950.0594930.0525040.0556170.0456320.0467910.0420.5

5、152.91450.1211950.1022440.0912610.0843040.0833270.0744070.0664090.0635100.0565220.0596400.0486550.0498200.0440.5513.01500.1292010.1092520.0972700.0893140.0893380.0784210.0704230.0675280.0595400.0626620.0516770.0528480.0470.5893.11550.1372080.1162610.1032790.0953250.0943490.0834350.0744380.072

6、5460.0635580.0666840.0547000.0558760.0500.6273.21600.1452150.1232690.1092880.1013350.1003600.0884490.0794520.0765630.0675760.0707060.0587220.0599040.0530.6673.31650.1542210.1302780.1162970.1073450.1053720.0934630.0834660.0805810.0715940.0747280.0617450.0629330.0560.7083.41700.1622280.1372860.

7、1223060.1133560.1113830.0994770.0884800.0855980.0756120.0797500.0647680.0669610.059钢板制矩形通风管道计算表表2动压（毫米水柱）风速（米/秒）外边长A×B（毫米）上行——风量（米3/小时）下行——单位摩擦阻力（毫米水柱/米）320×250500×200400×250320×320500×250400×320630×250500×320400×400500×400630×320500×500630×4