常用管道流速

流体名称流速（m/s)流体名称流速（m/s)饱和蒸汽（主管）30~40水及粘度相似液体(0.10~0.29,glass)0.5~2.0饱和蒸汽（支管）20~30水及粘度相似液体(≤0.98MPa,glass)0.5~3.0低压蒸汽（<0.98MPa,abs)15~20水及粘度相似液体(≤7.84MPa,glass)2.0~3.0中压蒸汽（0.98~3.92MPa,abs)20~40水及粘度相似液体(19.6~29.4MPa,glass)2.0~3.5高压蒸汽（3.92~11.77MPa,abs)40~60热网循环水,冷却水0.5~1.0过热蒸汽(主管)40~60压力回水0.5~2.0过热蒸汽(支管)35~60无压回水0.5~1.2一般气体(常压)10~20锅炉给水(≥0.78MPa,glass)>3.0高压乏气80~100蒸汽冷凝水0.5~1.5氧气(0~0.05MPa,glass)5~10冷凝水(自流)0.2~0.5氧气(0.05~0.59MPa,glass)7~8过热水2氧气(0.59~098MPa,glass)4~6海水,微碱水(<0.59MPa,glass)1.5~2.5氧气(0.98~1.96MPa,glass)4~5油及粘度大的液体0.5~2.0氧气(1.96~2.94MPa,glass)3~4粘度50mPa·s液体(管道Φ25以下) 0.5~0.9氮气(4.9~9.8MPa,abs)2~5粘度50mPa·s液体(管道Φ25~50) 0.7~1.0氢气≤8.0粘度50mPa·s液体(管道Φ50~100)1.0~1.6压缩空气(0.10~0.20MPa,glass)10~15粘度100mPa·s液体(管道Φ25以下)0.3~0.6压缩气体(真空)5~10粘度100mPa·s液体(管道Φ25~50) 0.5~0.7压缩气体(0.1~0.2MPa,glass)8~12粘度100mPa·s液体(管道Φ50~100)0.7~1.0压缩气体(0.1~0.59MPa,glass)10~20粘度1000mPa·s液体(管道Φ25以下) 0.1~0.2压缩气体(0.59~0.98MPa,glass)10~15粘度1000mPa·s液体(管道Φ25~50) 0.16~0.25压缩气体(0.98~1.96MPa,glass)8~10粘度1000mPa·s液体(管道Φ50~100)0.25~0.35压缩气体(1.96~2.94MPa,glass)3~6粘度1000mPa·s液体(管道Φ100~200)0.35~0.55压缩气体(2.94~24.5MPa,glass)0.5~3.0离心泵(吸入口)1.0~2.0煤气8~10离心泵(排出口)1.5~2.5半水煤气(0.10~0.15MPa)10~15往复式真空泵(吸入口)13~16烟道气(烟道内)3.0~6.0油封式真空泵(吸入口)10~13烟道气(管道内)3.0~4.0空气压缩机(吸入口)<10~15工业烟囱(自然通风)2.0~8.0空气压缩机(排出口)15~20车间通风换气(主管)4.5~15通风机(吸入口)10~15车间通风换气(支管)2.0~8.0通风机(排出口)15~20风管距风机(最远处)1.0~4.0齿轮泵(吸入口)<1.0风管距风机(最近处)8~12齿轮泵(排出口)1.0~2.0废气(低压)20~30往复泵(水类液体)吸入口0.7~1.0废气(高压)80~100往复泵(水类液体)排出口1.0~2.0化工设备排气管20~25旋风分离器(入气)15~25自来水(主管,0.29MPa,glass)1.5~3.5旋风分离器(出气)4.0~15自来水(支管,0.29MPa,glass)1.0~1.5工业供水(0.78MPa,glass)1.5~3.5易燃易爆液体<1