常用液体和气体介质管道流速表优质资料(可以直接使用，可编辑优质资料，欢迎下载）常用液体和气体介质管道流速表发布时间：11-09-06来源：点击量：1259字段选择：大中小常用液体和气体介质管道流速表流量计在选型时：我们要知道介质的流量大小，也就是介质流速快慢，如果太快容易损坏流量计，影响流量计的使用寿命。常用液体和气体介质管道流速表流体介质应用场所管道类型介质平均流速备注水一般给水主压力管道2-3低压管道0.5-1泵进口泵出口工业用水离心泵压力管3-4离心泵吸水管DN2501-2DN250往复泵压力管1.5-2往复泵吸水管<1给水总管1.5-3排水管冷却冷水管热水管1-1.5凝结凝结水泵吸水管0.5-1凝结水泵出水管1-2自流凝结水管一般液体低粘度高粘度液体粘度50mPa.sDN25DN50DN100粘度100mPa.sDN25DN50DN100DN200粘度1000mPa.sDN25DN50DN100DN200气体低压10-20高压8-1520-30MPa排气烟道2-7压缩空气压气机压气机进气管-10压气机输气管-20一般情况DN<50<8DN>70<15饱和蒸汽锅炉、汽轮机DN<10015-30DN=100-20025-35DN>20030-40过热蒸汽锅炉、汽轮机DN<10020-40DN=100-20030-50DN>20040-60流量计测量粘度较大的介质时，如果流速太慢，流量计测量无法计量。在选型时一定要注流速流量对照表公称通径DN(mm)流速(m/s)0.010.100.300.501.002.003.004.005.0010.00流量(m³/h)100.002830.028270.084820.141370.282740.565490.848231.130971.413722.82743150.006360.063620.190850.318090.636171.272351.908522.544693.180866.36173200.011310.113090.339290.565491.130972.261953.392924.523895.6548711.3097250.017670.176720.530140.883571.767153.534295.301447.068588.8357317.6715320.028950.289530.868591.447652.895295.790588.6858811.581214.476528.9529400.045240.452391.357172.261954.523899.0477913.571718.095622.619545.2389500.070690.706872.120583.534297.0685814.137221.205828.274335.342970.6858650.119451.194593.583775.9729511.945923.891835.837747.783659.7295119.459800.180961.809565.428679.0477918.095636.191154.286772.382390.4779180.9561000.282742.827438.482314.137228.274356.548784.823113.097141.372282.7431250.441784.4178613.253622.089344.178688.3573132.536176.715220.893441.7861500.636176.3617319.085231.808663.6173127.2345190.852254.469318.086636.1732001.1309711.309733.929256.5487113.097226.195339.292452.389565.4871130.9732501.7671517.671553.014488.3573176.715353.429530.144706.858883.5731767.153002.5446925.446976.3407127.235254.469508.938763.4071017.881272.352544.693503.4636134.6361103.908173.18346.361692.7211039.081385.441731.83463.614004.5238945.2389135.7168226.195452.389904.7791357.1681809.562261.954523.894505.7255557.2555171.766286.278572.5551145.111717.662290.222862.7857