TABLE 11-4 Typical Overall Heat-Transfer Coefficients in Refinery Service流体API重度物流侧污垢热阻‼0.001单位Btu/(°F·ft2·h)kcal/°C·m2·hW/°C·m2Btu/(°F·ft2·h)kcal/°C·m2·hW/°C·m2Btu/(°F·ft2·h)kcal/°C·m2·hW/°C·m2Btu/(°F·ft2·h)kcal/°C·m2·hW/°C·m2Btu/(°F·ft2·h)kcal/°C·m2·hW/°C·m2Btu/(°F·ft2·h)kcal/°C·m2·hW/°C·m2Btu/(°F·ft2·h)kcal/°C·m2·hW/°C·m2Btu/(°F·ft2·h)kcal/°C·m2·hW/°C·m2Btu/(°F·ft2·h)kcal/°C·m2·hW/°C·m2Btu/(°F·ft2·h)kcal/°C·m2·hW/°C·m2蒸汽加热水冷冷凝液-液换热器,管侧流体指定如下再沸器,加热液指定如下再沸器器※CGHCKG†160781.2908.5155756.8880.1120585.9681.4140683.5795.0963.8539.4815.0482.770341.8397.560292.9340.7963.8539.490439.4511.080390..3815.0482.775366.2425.960292.9340.750244.1283.945219.7255.5815.0482.780390..370341.8397.570341.8397.565317.4369.160292.9340.760292.9340.755268.5312.355268.5312.350244.1283.9815.0482.775366.2425.965317.4369.155268.5312.355268.5312.355268.5312.350244.1283.950244.1283.945219.7255.0195.3227.180390..375366.2425.960292.9340.755268.5312.350244.1283.950244.1283.950244.1283.945219.7255.0195.3227.135170.9198.750244.1283.9110537.1624.6105512.7596.265317.4369.175366.2425.955268.5312.3963.8539.490439.4511.050244.1283.960292.9340.745219.7255.5219.7255.0195.3227.140195.3227.135170.9198.735170.9198.730146.5170.335170.9198.730146.5170.325122.1142.025122.1142.02097.6113.670341.8397.570341.8397.575366.2425.970341.8397.550244.1283.950244.1283.945219.7255.0195.3227.135170.9198.735170.9198.730146.5170.330146.5170.380390..355268.5312.340195.3227.1冷凝器,冷却液指定如下DFGA丙烷--0.000200.000180.001B丁烷--0.000200.000180.001C汽油,终馏点400F500.000200.000180.001D直馏轻石脑油700.000200.000180.001E直馏重石脑油450.000200.000180.001F煤油400.000200.000180.002G轻蜡油300.000410.000350.003H重蜡油220.000610.000530.005J减粘原油170.001020.000880.005K重燃料油(焦油)100.001020.00088污垢热阻:水做为换热介质时的水侧污垢热阻是0.0002(h·ft2·°F)/Btu,其他物流做为换热介质时,其组合如上栏所指定.注释: ‼:污垢热阻单位是传热系数的倒数. ※:水冷冷却器的传热系数再降低5%. †:若用重蜡油做热媒,总传热系数再降低5%.
定如下J30146.5170.330146.5170.330146.5170.330146.5170.32097.6113.6
