Оптимизация рекуперативного теплообмена технологических потоков центральной газофракционирующей установки методом пинч-анализа, страница 172

Dp(ch)  8.017 Dp(p) -0.636/2.249                   Dp(ch)  70.869 Dp(p) 0.451/2.597

Conn A1 à A2 1/1 250/100 mm Dp(c)=0.146/15.513            Conn B1 à B2 1/1 100.0/100.0 mm Dp(c)=0.146/15.513

v(c/neck/ch)=19.2/20.2/9.73                           v(c/neck/ch)=4.67/2.35/1.49

v(ch/neck/c)=5.74/15.4/70.8                           v(ch/neck/c)=1.58/2.48/4.94

T (v/l)  P          Q         T (v/l)  P          Q

In 63.0             2.93     1.00     20.0                 Subcooled

Out 59.7/54.1  2.68     0.535   44.0                 Subcooled

Twall min/max                                                44.8/56.9                                                                                                                                   Twall min/max                                             39.1/53.9

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                                                                        Hot side                      Cold side       

                                                                        Liquid Vapour            Liquid                        

                                                                        In/Out  In/Out  In/Out 

Dens                                                                574.0/577.3     8.201/7.528     565.3/534.6    

Sp.Heat                                                           2.480/2.455     1.882/1.862     2.386/2.591    

Visc                                                                 0.150/0.154     0.0074/0.0076 0.163/0.131    

Th.Cond                                                          0.0893/0.0901 0.0178/0.0175 0.0930/0.0841

Bub. p.                                                                         63.0                

Dew p.                                                                         63.0                

Mol.W.                                                                         72.15/72.15                

Cr.pr.                                                                           33.34/33.34                

Cr.temp.                                                                      187.2/187.2                

Lat.heat                                                                       314.5/317.5                

Warning: High velocity in connection! (70.76) > 26.81 Try Double Inlet, more units in parallel or PHE with bigger connections!

Приложение 3

Спецификации дополнительных теплообменных аппаратов для варианта интеграции №2

Project:        Cas200

Item:             T4var

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Alfa Laval Compabloc Heat Exchanger                                           Technical Specification

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1*CPL50  Vertical  Countercurrent     AISI 316 L  1.00 mm  252pl 69.8/70.3 m²

pdes=5.0 barg    Tdes=40.0/30.0-70.0/45.0 °C  k=573.6/531.2 W/(m?*K) 

Marg.=8%  Foul.=0.0(1.4)*10-4 m?*K/W  Load=634.0 kW  LMTD=17.1 K

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 5 потКуб К3          31500 kg/h  0.469<100 kPa   69.0 °C --> 42.0 °C          1*62+1*63 M

ШФЛУ                     69300 kg/h  2.11<100 kPa   44.0 °C <-- 31.0 °C            1*63+1*63 M

Dp(p+co)=0.120 kPav(co)=0.346 m/s  NTU=1.58  Connections A1 à A2  1/1  250/250 mm

Dp(p+co)=0.571 kPav(co)=0.734 m/s  NTU=0.76  Connections B1 à B2  1/1  250/250 mm

Media                           Temp.         Dens.       Sp.heat.         Cond.          Visc.

5 потКуб К3                  42.0          552.7              2.55            0.087          0.141

52.8          538.6              2.65            0.084          0.129

69.0          515.9              2.83            0.077          0.113