通风排烟设计工具箱一、通风管道流量阻力表1、缩伸软管摩擦阻力表圆形风管v=2 m/sv=3 m/sv=4 m/sv=5 m/sv=6 m/sΦ150127/190/254/318/381/Φ200226/339/452/565/678/Φ250353/530/707/883/1060/Φ300509/764/1018/1273/1521/2、镀锌板风管摩擦阻力表矩型风管mm风量(m3/h)/摩擦阻力(Pa)v=2m/sv=3 m/sv=4 m/sv=5 m/sv=6 m/s120x120104/156/207/259/311/160x120138/207/277/346/415/160x160184/277/369/461/553/200x120173/259/346/432/734/200x160230/346/461/576/691/250x120216/324/432/540/648/250x160288/432/576/720/864/250x200360/540/720/900/1080/320x120269/403/537/672/806/320x160369/553/737/922/1106/320x200461/691/9221/1152/1382/320x250576/864/1152/1440/1728/400x120336/504/673/841/1009/400x160461/691/922/1152/1382/400x200576/864/1152/1440/1728/400x250720/1080/1440/1800/2160/500x160576/ 864/1152/1440/1728/500x200720/1080/1440/1800/2160/500x250900/1350/1800/2250/2700/500x3201152/1728/2304/2880/3456/500x4001440/2160/2880/3600/4320/630x160726/1089/1452/1814/2177/630x200907/1361/1814/2268/2722/630x2501134/1701/2268/2835/3402/630x3201452/2177/2903/3629/4355/630x4001814/2722/3629/4536/5443/630x5002268/3402/4536/5670/6804/800x160922/1382/1843/2304/2765/800x2001152/1728/2304/2880/3456/800x2501440/2160/2880/3600/4320/800x3201843/2765/3686/4608/5530/1000x2001440/2160/2880/3600/4320/1000x2501800/2700/3600/4500/5400/1000x3202304/3456/4608/5760/6912/圆形风管v=2 m/sv=3 m/sv=4 m/sv=5 m/sv=6 m/sΦ10055/83/111/139/166/Φ140109/164/219/273/328/Φ200224/336/448/560/672/Φ250524/698/873/1048/Φ360727/1090/1454/1817/2180/Φ400898/1347/1796/2245/2694/Φ5001405/2108/2811/3513/4216/说明(1).软管采纳荷兰数据时,上述数据乘以下系数：Φ150x2；Φ200 ； Φ250 ； Φ300 (2).局部摩擦阻力：散流器喉径(mm)ΔP (Pa)v=2m/sv=3 m/sv=4 m/sv=5 m/sv=6m/s200x200300x300400x400(3)与散流器的摩擦阻力：接管规格(mm)ΔP (Pa)v=2m/sv=3 m/sv=4 m/sv=5 m/sv=6m/s镀锌管 200x200镀锌管 400x400软管 Φ150软管 Φ350(4).保持风速必须的动压：当 v=2m/s 时, ΔP=； 当 v=3m/s 时, ΔP=当 v=4m/s 时, ΔP=； 当 v=5m/s 时, ΔP=15Pa...
