二甲醚与水换热问题？ 碳钢都够了，你想把dme操作到好多压力？ 我大概算了下第一个换热器 数据在下面 你看看嘛 用proii算的 只能提供个大概 不能直接采用哟！算的时候大概取了 120%的富裕量 simulation sciences inc. r page p-4 project pro/ii version 7.1 elec v6.6 problem output rigorous heat exchanger summary 04/03/08 ============================================================================== shell and tube exchanger data sheet for exchanger 'cooler' i----------------------------------------------------------------------------i i exchanger name unit id cooler i i size 1600 - 6000 type bem horizontal connected 2 parallel 1 series i i area/unit 2389.m2 ( 1963.m2 required) area/shell 1194.m2 i i----------------------------------------------------------------------------i i performance of one unit shell-side tube-side i i----------------------------------------------------------------------------i i feed stream id dme01 cws i i feed stream name i i total fluid kg/hr 125000. 2390702. i i vapor (in/out) kg/hr 125000. / 1470. / i i liquid kg/hr / 123530. 2390702. / 2390702. i i steam kg/hr / / i i water kg/hr / / i i non condensible kg/hr i i temperature (in/out) deg c 22.0 / 22.0 10.0 / 15.0 i i pressure (in/out) mpa 0.52 / 0.52 0.50 / 0.48 i i----------------------------------------------------------------------------i i sp. gr., liq (4c / 4c h2o) / 0.675 1.000 / 1.000 i i vap (4c / 4c air) 1.591 / 1.591 / i i density, liquid kg/m3 / 665.190 1000.002 / 998.703 i i vapor kg/m3 9.856 / 9.856 / i i viscosity, liquid cp / 0.136 1.299 / 1.135 i i vapor cp 0.009 / 0.009 / i i thrml cond,liq kcal/hr-m-c / 0.1112 0.5064 / 0.5129 i i vap kcal/hr-m-c 0.0132 / 0.0132 / i i spec.heat,liquid kcal/kg-c / 0.5858 1.0002 / 0.9995 i i vapor kcal/kg-c 0.2441 / 0.2441 / i i latent heat kcal/kg 97.06 i i velocity m/sec 0.39 1.08 i i dp/shell mpa 0.00 0.02 i i fouling resist hr-m2-c/kcal 0.00020 ( 0.00053 reqd) 0.00020 i i----------------------------------------------------------------------------i i transfer rate kcal/hr-m2-c service 659.01 ( 541.42 reqd) clean 939.76 i i heat exchanged m*kcal/hr 11.990 mtd(corrected) 9.3 ft 1.000 i i----------------------------------------------------------------------------i i construction of one shell shell-side tube-side i i----------------------------------------------------------------------------i i design pressure mpa 2. 2. i i number of passes 1 2 i i material carb stl carb stl i i inlet nozzle id mm 590.5 488.9 i i outlet nozzle id mm 254.5 590.5 i i----------------------------------------------------------------------------i i tube: number 3498 od 19.000 mm thick 2.000 mm length 6.0 m i i type bare pitch 25.0 mm pattern 60 degrees i i shell: id 1600.00 mm sealing strips 0 pairs i i baffle: cut 0.200 spacing (in/cent/out): mm 461.44/ 320.00/ 461.44,single i i rho-v2: inlet nozzle 407.6 kg/m-sec2 i i total weight/shell,kg 11888.4 full of water 48075.6 bundle 26369.7 i i----------------------------------------------------------------------------i查看更多
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