回流模拟的问题
做aspen模拟的时候遇到的问题，求解！回流之前一切都正常，但是回流之后精馏塔塔顶的温度就变成了-260多度，而且回流提示中的 Err/Tol也直接到8410的时候就不变了。两个问题请问初步症断是什么问题，可以怎么更改，能说明产生这些的原因就更好了回流之前？应该是循环之前正常吧，建议楼主把bkp文件发上来或者把错误提示的截图发上来。 光看描述，看不出什么来。 2013qustgm205 发表于 2014-6-16 22:20
回流之前？应该是循环之前正常吧，建议楼主把bkp文件发上来或者把错误提示的截图发上来。
<< Run reinitialized 09:29:00 Tue Jun 17, 2014>>
->Processing input specifications ...
Flowsheet Analysis :
Block $OLVER01 (Method: WEGSTEIN) has been defined to converge
streams: MIX05
COMPUTATION ORDER FOR THE FLOWSHEET:
$OLVER01 MIXER01 REACTOR1 MIXER1 REACTOR2 MIXER2 REACTOR3
|MIXER3 REACTOR4 FLASH3 SEP PUM RADFRAC C7-SEP FSPLIT
|MIXER05
(RETURN $OLVER01)
->Calculations begin ...
> Beginning Convergence Loop $OLVER01 Method: WEGSTEIN
Block: MIXER01Model: MIXER
Block: REACTOR1 Model: RSTOIC
Block: MIXER1 Model: MIXER
Block: REACTOR2 Model: RSTOIC
Block: MIXER2 Model: MIXER
Block: REACTOR3 Model: RSTOIC
Block: MIXER3 Model: MIXER
Block: REACTOR4 Model: RSTOIC
Block: FLASH3 Model: FLASH3
Block: SEP Model: SEP
* WARNING
ZERO FEED TO THE BLOCK. BLOCK BYPASSED
Block: PUM Model: PUMP
Block: RADFRACModel: RADFRAC
Convergence iterations:
OL ML IL Err/Tol
1 1 6 116.42
2 1 5 113.73
3 1 3 395.09
4 1 3 0.26260E+18
5 1 1 0.23365E+08
6 1 1 0.29287E+06
7 1 1 67300.
8 1 1 894.43
9 1 2 3743.7
10 1 1 3397.7
11 1 1 0.63957E+06
12 1 1 0.54872E+08
13 1 1 0.19070E+07
14 1 1 0.51938E+06
15 1 1 0.76497E+07
16 1 1 11365.
17 1 1 0.42199E+06
18 1 1 22734.
19 1 1 15983.
20 1 1 9524.3
21 1 1 7987.5
22 1 1 8264.6
23 1 1 8422.2
24 1 1 8420.3
25 1 1 8414.7
26 1 1 8409.7
27 1 1 8409.9
28 1 1 8410.0
29 1 1 8410.0
30 1 1 8410.0
31 1 1 8410.0
32 1 1 8410.0
33 1 1 8410.0
34 1 1 8410.0
35 1 1 8410.0
36 1 1 8410.0
37 1 1 8410.0
38 1 1 8410.0
39 1 1 8410.0
40 1 1 8410.0
41 1 1 8410.0
42 1 1 8410.0
43 1 1 8410.0
44 1 1 8410.0
45 1 1 8410.0
46 1 1 8410.0
47 1 1 8410.0
48 1 1 8410.0
49 1 1 8410.0
50 1 1 8410.0
51 1 1 8410.0
52 1 1 8410.0
53 1 1 8410.0
54 1 1 8410.0
55 1 1 8410.0
56 1 1 8410.0
57 1 1 8410.0
58 1 1 8410.0
59 1 1 8410.0
60 1 1 8410.0
61 1 1 8410.0
62 1 1 8410.0
63 1 1 8410.0
64 1 1 8410.0
65 1 1 8410.0
66 1 1 8410.0
67 1 1 8410.0
68 1 1 8410.0
69 1 1 8410.0
70 1 1 8410.0
71 1 1 8410.0
72 1 1 8410.0
73 1 1 8410.0
74 1 1 8410.0
75 1 1 8410.0
76 1 1 8410.0
77 1 1 8410.0
78 1 1 8410.0
79 1 1 8410.0
80 1 1 8410.0
81 1 1 8410.0
82 1 1 8410.0
83 1 1 8410.0
84 1 1 8410.0
85 1 1 8410.0
86 1 1 8410.0
87 1 1 8410.0
88 1 1 8410.0
89 1 1 8410.0
90 1 1 8410.0
91 1 1 8410.0
92 1 1 8410.0
93 1 1 8410.0
94 1 1 8410.0
95 1 1 8410.0
96 1 1 8410.0
97 1 1 8410.0
98 1 1 8410.0
99 1 1 8410.0
100 1 1 8410.0
101 1 1 8410.0
102 1 1 8410.0
103 1 1 8410.0
104 1 1 8410.0
105 1 1 8410.0
106 1 1 8410.0
107 1 1 8410.0
108 1 1 8410.0
109 1 1 8410.0
110 1 1 8410.0
111 1 1 8410.0
112 1 1 8410.0
113 1 1 8410.0
114 1 1 8410.0
115 1 1 8410.0
116 1 1 8410.0
117 1 1 8410.0
118 1 1 8410.0
119 1 1 8410.0
120 1 1 8410.0
121 1 1 8410.0
122 1 1 8410.0
123 1 1 8410.0
124 1 1 8410.0
125 1 1 8410.0
126 1 1 8410.0
127 1 1 8410.0
128 1 1 8410.0
129 1 1 8410.0
130 1 1 8410.0
131 1 1 8410.0
132 1 1 8410.0
133 1 1 8410.0
134 1 1 8410.0
135 1 1 8410.0
136 1 1 8410.0
137 1 1 8410.0
138 1 1 8410.0
139 1 1 8410.0
140 1 1 8410.0
141 1 1 8410.0
142 1 1 8410.0
143 1 1 8410.0
144 1 1 8410.0
145 1 1 8410.0
146 1 1 8410.0
147 1 1 8410.0
148 1 1 8410.0
149 1 1 8410.0
150 1 1 8410.0
151 1 1 8410.0
152 1 1 8410.0
153 1 1 8410.0
154 1 1 8410.0
155 1 1 8410.0
156 1 1 8410.0
157 1 1 8410.0
158 1 1 8410.0
159 1 1 8410.0
160 1 1 8410.0
161 1 1 8410.0
162 1 1 8410.0
163 1 1 8410.0
164 1 1 8410.0
165 1 1 8410.0
166 1 1 8410.0
167 1 1 8410.0
168 1 1 8410.0
169 1 1 8410.0
170 1 1 8410.0
171 1 1 8410.0
172 1 1 8410.0
173 1 1 8410.0
174 1 1 8410.0
175 1 1 8410.0
176 1 1 8410.0
177 1 1 8410.0
178 1 1 8410.0
179 1 1 8410.0
180 1 1 8410.0
181 1 1 8410.0
182 1 1 8410.0
183 1 1 8410.0
184 1 1 8410.0
185 1 1 8410.0
186 1 1 8410.0
187 1 1 8410.0
188 1 1 8410.0
189 1 1 8410.0
190 1 1 8410.0
191 1 1 8410.0
192 1 1 8410.0
193 1 1 8410.0
194 1 1 8410.0
195 1 1 8410.0
196 1 1 8410.0
197 1 1 8410.0
198 1 1 8410.0
199 1 1 8410.0
200 1 1 8410.0
**ERROR
RADFRAC NOT CONVERGED IN 200 OUTSIDE LOOP ITERATIONS.
Block: C7-SEP Model: SEP
**ERROR
FLASH RESULTS ARE WITHIN TOLERANCE, BUT MAY BE UNSATISFACTORY BECAUSE
EXTRAPOLATED EOS VAPOR VOLUME ROOT WAS USED FOR PROPERTY CALCULATIONS.
PROBLEM OCCURRED IN FLASH OF OUTLET STREAM "C7-DOWN"
Block: FSPLIT Model: FSPLIT
Block: MIXER05Model: MIXER
> Loop $OLVER01 Method: WEGSTEIN Iteration 1
6 vars not converged, Max Err/Tol-0.54434E+05
Block: MIXER01Model: MIXER
Block: REACTOR1 Model: RSTOIC
Block: MIXER1 Model: MIXER
Block: REACTOR2 Model: RSTOIC
Block: MIXER2 Model: MIXER
Block: REACTOR3 Model: RSTOIC
Block: MIXER3 Model: MIXER
Block: REACTOR4 Model: RSTOIC
Block: FLASH3 Model: FLASH3
Block: SEP Model: SEP
Block: PUM Model: PUMP
Block: RADFRACModel: RADFRAC
Convergence iterations:
OL ML IL Err/Tol
1 1 8 2427.7
2 1 2 4095.4
3 1 1 4625.7
4 1 1 2312.8
5 1 1 0.69530E-01
Block: C7-SEP Model: SEP
Block: FSPLIT Model: FSPLIT
Block: MIXER05Model: MIXER
> Loop $OLVER01 Method: WEGSTEIN Iteration 2
5 vars not converged, Max Err/Tol 0.20062E+08
Block: MIXER01Model: MIXER
Block: REACTOR1 Model: RSTOIC
Block: MIXER1 Model: MIXER
Block: REACTOR2 Model: RSTOIC
Block: MIXER2 Model: MIXER
Block: REACTOR3 Model: RSTOIC
Block: MIXER3 Model: MIXER
Block: REACTOR4 Model: RSTOIC
Block: FLASH3 Model: FLASH3
Block: SEP Model: SEP
Block: PUM Model: PUMP
Block: RADFRACModel: RADFRAC
Convergence iterations:
OL ML IL Err/Tol
1 1 7 67.439
2 1 3 1.7987
3 1 3 0.10873
Block: C7-SEP Model: SEP
Block: FSPLIT Model: FSPLIT
Block: MIXER05Model: MIXER
> Loop $OLVER01 Method: WEGSTEIN Iteration 3
7 vars not converged, Max Err/Tol 0.96643E+04
Block: MIXER01Model: MIXER
Block: REACTOR1 Model: RSTOIC
Block: MIXER1 Model: MIXER
Block: REACTOR2 Model: RSTOIC
Block: MIXER2 Model: MIXER
Block: REACTOR3 Model: RSTOIC
Block: MIXER3 Model: MIXER
Block: REACTOR4 Model: RSTOIC
Block: FLASH3 Model: FLASH3
Block: SEP Model: SEP
Block: PUM Model: PUMP
Block: RADFRACModel: RADFRAC
Convergence iterations:
OL ML IL Err/Tol
1 1 5 133.08
2 1 3 4.4343
3 1 2 0.21911
Block: C7-SEP Model: SEP
*** SEVERE ERROR
FLASH RESULTS ARE WITHIN TOLERANCE, BUT MAY BE UNSATISFACTORY BECAUSE
EXTRAPOLATED EOS VAPOR VOLUME ROOT WAS USED FOR PROPERTY CALCULATIONS.
FAILURE TO SOLVE 2-PHASE ADIABATIC PROBLEM AS TP SUBPROBLEMS. T= 18.8813
P= 3.0000D+05 HCALC= -3.8286D+07 HFSPEC= -3.8286D+07
**ERROR
FLASH RESULTS ARE WITHIN TOLERANCE, BUT MAY BE UNSATISFACTORY BECAUSE
EXTRAPOLATED EOS VAPOR VOLUME ROOT WAS USED FOR PROPERTY CALCULATIONS.
PROBLEM OCCURRED IN FLASH OF OUTLET STREAM "C7-DOWN"
Block: FSPLIT Model: FSPLIT
Block: MIXER05Model: MIXER
> Loop $OLVER01 Method: WEGSTEIN Iteration 4
7 vars not converged, Max Err/Tol-0.87388E+04
Block: MIXER01Model: MIXER
Block: REACTOR1 Model: RSTOIC
Block: MIXER1 Model: MIXER
Block: REACTOR2 Model: RSTOIC
Block: MIXER2 Model: MIXER
Block: REACTOR3 Model: RSTOIC
Block: MIXER3 Model: MIXER
Block: REACTOR4 Model: RSTOIC
Block: FLASH3 Model: FLASH3
Block: SEP Model: SEP
Block: PUM Model: PUMP
Block: RADFRACModel: RADFRAC
Convergence iterations:
OL ML IL Err/Tol
1 1 4 19.278
2 1 3 0.78091
Block: C7-SEP Model: SEP
Block: FSPLIT Model: FSPLIT
Block: MIXER05Model: MIXER
> Loop $OLVER01 Method: WEGSTEIN Iteration 5
7 vars not converged, Max Err/Tol 0.22328E+05
Block: MIXER01Model: MIXER
Block: REACTOR1 Model: RSTOIC
Block: MIXER1 Model: MIXER
Block: REACTOR2 Model: RSTOIC
Block: MIXER2 Model: MIXER
Block: REACTOR3 Model: RSTOIC
Block: MIXER3 Model: MIXER
Block: REACTOR4 Model: RSTOIC
Block: FLASH3 Model: FLASH3
Block: SEP Model: SEP
Block: PUM Model: PUMP
Block: RADFRACModel: RADFRAC
Convergence iterations:
OL ML IL Err/Tol
1 1 4 7.2016
2 1 3 0.25499
Block: C7-SEP Model: SEP
Block: FSPLIT Model: FSPLIT
Block: MIXER05Model: MIXER
> Loop $OLVER01 Method: WEGSTEIN Iteration 6
7 vars not converged, Max Err/Tol-0.11461E+04
Block: MIXER01Model: MIXER
Block: REACTOR1 Model: RSTOIC
Block: MIXER1 Model: MIXER
Block: REACTOR2 Model: RSTOIC
Block: MIXER2 Model: MIXER
Block: REACTOR3 Model: RSTOIC
Block: MIXER3 Model: MIXER
Block: REACTOR4 Model: RSTOIC
Block: FLASH3 Model: FLASH3
Block: SEP Model: SEP
Block: PUM Model: PUMP
Block: RADFRACModel: RADFRAC
Convergence iterations:
OL ML IL Err/Tol
1 1 3 1.3784
2 1 3 0.47626E-01
Block: C7-SEP Model: SEP
Block: FSPLIT Model: FSPLIT
Block: MIXER05Model: MIXER
> Loop $OLVER01 Method: WEGSTEIN Iteration 7
7 vars not converged, Max Err/Tol-0.15416E+04
Block: MIXER01Model: MIXER
Block: REACTOR1 Model: RSTOIC
Block: MIXER1 Model: MIXER
Block: REACTOR2 Model: RSTOIC
Block: MIXER2 Model: MIXER
Block: REACTOR3 Model: RSTOIC
Block: MIXER3 Model: MIXER
Block: REACTOR4 Model: RSTOIC
Block: FLASH3 Model: FLASH3
Block: SEP Model: SEP
Block: PUM Model: PUMP
Block: RADFRACModel: RADFRAC
Convergence iterations:
OL ML IL Err/Tol
1 1 3 0.49257
Block: C7-SEP Model: SEP
Block: FSPLIT Model: FSPLIT
Block: MIXER05Model: MIXER
> Loop $OLVER01 Method: WEGSTEIN Iteration 8
7 vars not converged, Max Err/Tol-0.10222E+04
Block: MIXER01Model: MIXER
Block: REACTOR1 Model: RSTOIC
Block: MIXER1 Model: MIXER
Block: REACTOR2 Model: RSTOIC
Block: MIXER2 Model: MIXER
Block: REACTOR3 Model: RSTOIC
Block: MIXER3 Model: MIXER
Block: REACTOR4 Model: RSTOIC
Block: FLASH3 Model: FLASH3
Block: SEP Model: SEP
Block: PUM Model: PUMP
Block: RADFRACModel: RADFRAC
Convergence iterations:
OL ML IL Err/Tol
1 1 3 2.3401
2 1 3 0.82343E-01
Block: C7-SEP Model: SEP
Block: FSPLIT Model: FSPLIT
Block: MIXER05Model: MIXER
> Loop $OLVER01 Method: WEGSTEIN Iteration 9
6 vars not converged, Max Err/Tol-0.12823E+04
Block: MIXER01Model: MIXER
Block: REACTOR1 Model: RSTOIC
Block: MIXER1 Model: MIXER
Block: REACTOR2 Model: RSTOIC
Block: MIXER2 Model: MIXER
Block: REACTOR3 Model: RSTOIC
Block: MIXER3 Model: MIXER
Block: REACTOR4 Model: RSTOIC
Block: FLASH3 Model: FLASH3
Block: SEP Model: SEP
Block: PUM Model: PUMP
Block: RADFRACModel: RADFRAC
Convergence iterations:
OL ML IL Err/Tol
1 1 4 3.3042
2 1 3 0.12104
Block: C7-SEP Model: SEP
Block: FSPLIT Model: FSPLIT
Block: MIXER05Model: MIXER
> Loop $OLVER01 Method: WEGSTEIN Iteration 10
6 vars not converged, Max Err/Tol 0.13324E+04
Block: MIXER01Model: MIXER
Block: REACTOR1 Model: RSTOIC
Block: MIXER1 Model: MIXER
Block: REACTOR2 Model: RSTOIC
Block: MIXER2 Model: MIXER
Block: REACTOR3 Model: RSTOIC
Block: MIXER3 Model: MIXER
Block: REACTOR4 Model: RSTOIC
Block: FLASH3 Model: FLASH3
Block: SEP Model: SEP
Block: PUM Model: PUMP
Block: RADFRACModel: RADFRAC
Convergence iterations:
OL ML IL Err/Tol
1 1 3 0.31457
Block: C7-SEP Model: SEP
Block: FSPLIT Model: FSPLIT
Block: MIXER05Model: MIXER
> Loop $OLVER01 Method: WEGSTEIN Iteration 11
6 vars not converged, Max Err/Tol 0.21153E+03
Block: MIXER01Model: MIXER
Block: REACTOR1 Model: RSTOIC
Block: MIXER1 Model: MIXER
Block: REACTOR2 Model: RSTOIC
Block: MIXER2 Model: MIXER
Block: REACTOR3 Model: RSTOIC
Block: MIXER3 Model: MIXER
Block: REACTOR4 Model: RSTOIC
Block: FLASH3 Model: FLASH3
Block: SEP Model: SEP
Block: PUM Model: PUMP
Block: RADFRACModel: RADFRAC
Convergence iterations:
OL ML IL Err/Tol
1 1 3 0.12516
Block: C7-SEP Model: SEP
Block: FSPLIT Model: FSPLIT
Block: MIXER05Model: MIXER
> Loop $OLVER01 Method: WEGSTEIN Iteration 12
6 vars not converged, Max Err/Tol 0.18619E+03
Block: MIXER01Model: MIXER
Block: REACTOR1 Model: RSTOIC
Block: MIXER1 Model: MIXER
Block: REACTOR2 Model: RSTOIC
Block: MIXER2 Model: MIXER
Block: REACTOR3 Model: RSTOIC
Block: MIXER3 Model: MIXER
Block: REACTOR4 Model: RSTOIC
Block: FLASH3 Model: FLASH3
Block: SEP Model: SEP
Block: PUM Model: PUMP
Block: RADFRACModel: RADFRAC
Convergence iterations:
OL ML IL Err/Tol
1 1 3 0.16599
Block: C7-SEP Model: SEP
Block: FSPLIT Model: FSPLIT
Block: MIXER05Model: MIXER
> Loop $OLVER01 Method: WEGSTEIN Iteration 13
6 vars not converged, Max Err/Tol 0.16629E+03
Block: MIXER01Model: MIXER
Block: REACTOR1 Model: RSTOIC
Block: MIXER1 Model: MIXER
Block: REACTOR2 Model: RSTOIC
Block: MIXER2 Model: MIXER
Block: REACTOR3 Model: RSTOIC
Block: MIXER3 Model: MIXER
Block: REACTOR4 Model: RSTOIC
Block: FLASH3 Model: FLASH3
Block: SEP Model: SEP
Block: PUM Model: PUMP
Block: RADFRACModel: RADFRAC
Convergence iterations:
OL ML IL Err/Tol
1 1 3 0.33662
Block: C7-SEP Model: SEP
Block: FSPLIT Model: FSPLIT
Block: MIXER05Model: MIXER
> Loop $OLVER01 Method: WEGSTEIN Iteration 14
6 vars not converged, Max Err/Tol 0.41017E+03
Block: MIXER01Model: MIXER
Block: REACTOR1 Model: RSTOIC
Block: MIXER1 Model: MIXER
Block: REACTOR2 Model: RSTOIC
Block: MIXER2 Model: MIXER
Block: REACTOR3 Model: RSTOIC
Block: MIXER3 Model: MIXER
Block: REACTOR4 Model: RSTOIC
Block: FLASH3 Model: FLASH3
Block: SEP Model: SEP
Block: PUM Model: PUMP
Block: RADFRACModel: RADFRAC
Convergence iterations:
OL ML IL Err/Tol
1 1 3 0.19608
Block: C7-SEP Model: SEP
Block: FSPLIT Model: FSPLIT
Block: MIXER05Model: MIXER
> Loop $OLVER01 Method: WEGSTEIN Iteration 15
6 vars not converged, Max Err/Tol 0.13706E+03
Block: MIXER01Model: MIXER
Block: REACTOR1 Model: RSTOIC
Block: MIXER1 Model: MIXER
Block: REACTOR2 Model: RSTOIC
Block: MIXER2 Model: MIXER
Block: REACTOR3 Model: RSTOIC
Block: MIXER3 Model: MIXER
Block: REACTOR4 Model: RSTOIC
Block: FLASH3 Model: FLASH3
Block: SEP Model: SEP
Block: PUM Model: PUMP
Block: RADFRACModel: RADFRAC
Convergence iterations:
OL ML IL Err/Tol
1 1 3 0.20622
Block: C7-SEP Model: SEP
Block: FSPLIT Model: FSPLIT
Block: MIXER05Model: MIXER
> Loop $OLVER01 Method: WEGSTEIN Iteration 16
6 vars not converged, Max Err/Tol 0.12625E+03
Block: MIXER01Model: MIXER
Block: REACTOR1 Model: RSTOIC
Block: MIXER1 Model: MIXER
Block: REACTOR2 Model: RSTOIC
Block: MIXER2 Model: MIXER
Block: REACTOR3 Model: RSTOIC
Block: MIXER3 Model: MIXER
Block: REACTOR4 Model: RSTOIC
Block: FLASH3 Model: FLASH3
Block: SEP Model: SEP
Block: PUM Model: PUMP
Block: RADFRACModel: RADFRAC
Convergence iterations:
OL ML IL Err/Tol
1 1 3 0.19726
Block: C7-SEP Model: SEP
Block: FSPLIT Model: FSPLIT
Block: MIXER05Model: MIXER
> Loop $OLVER01 Method: WEGSTEIN Iteration 17
5 vars not converged, Max Err/Tol 0.19093E+03
Block: MIXER01Model: MIXER
Block: REACTOR1 Model: RSTOIC
Block: MIXER1 Model: MIXER
Block: REACTOR2 Model: RSTOIC
Block: MIXER2 Model: MIXER
Block: REACTOR3 Model: RSTOIC
Block: MIXER3 Model: MIXER
Block: REACTOR4 Model: RSTOIC
Block: FLASH3 Model: FLASH3
Block: SEP Model: SEP
Block: PUM Model: PUMP
Block: RADFRACModel: RADFRAC
Convergence iterations:
OL ML IL Err/Tol
1 1 2 0.82275E-01
Block: C7-SEP Model: SEP
Block: FSPLIT Model: FSPLIT
Block: MIXER05Model: MIXER
> Loop $OLVER01 Method: WEGSTEIN Iteration 18
5 vars not converged, Max Err/Tol-0.13399E+03
Block: MIXER01Model: MIXER
Block: REACTOR1 Model: RSTOIC
Block: MIXER1 Model: MIXER
Block: REACTOR2 Model: RSTOIC
Block: MIXER2 Model: MIXER
Block: REACTOR3 Model: RSTOIC
Block: MIXER3 Model: MIXER
Block: REACTOR4 Model: RSTOIC
Block: FLASH3 Model: FLASH3
Block: SEP Model: SEP
Block: PUM Model: PUMP
Block: RADFRACModel: RADFRAC
Convergence iterations:
OL ML IL Err/Tol
1 1 3 0.23628
Block: C7-SEP Model: SEP
Block: FSPLIT Model: FSPLIT
Block: MIXER05Model: MIXER
> Loop $OLVER01 Method: WEGSTEIN Iteration 19
6 vars not converged, Max Err/Tol-0.24532E+03
Block: MIXER01Model: MIXER
Block: REACTOR1 Model: RSTOIC
Block: MIXER1 Model: MIXER
Block: REACTOR2 Model: RSTOIC
Block: MIXER2 Model: MIXER
Block: REACTOR3 Model: RSTOIC
Block: MIXER3 Model: MIXER
Block: REACTOR4 Model: RSTOIC
Block: FLASH3 Model: FLASH3
Block: SEP Model: SEP
Block: PUM Model: PUMP
Block: RADFRACModel: RADFRAC
Convergence iterations:
OL ML IL Err/Tol
1 1 3 0.56874
Block: C7-SEP Model: SEP
Block: FSPLIT Model: FSPLIT
Block: MIXER05Model: MIXER
> Loop $OLVER01 Method: WEGSTEIN Iteration 20
6 vars not converged, Max Err/Tol 0.99782E+02
Block: MIXER01Model: MIXER
Block: REACTOR1 Model: RSTOIC
Block: MIXER1 Model: MIXER
Block: REACTOR2 Model: RSTOIC
Block: MIXER2 Model: MIXER
Block: REACTOR3 Model: RSTOIC
Block: MIXER3 Model: MIXER
Block: REACTOR4 Model: RSTOIC
Block: FLASH3 Model: FLASH3
Block: SEP Model: SEP
Block: PUM Model: PUMP
Block: RADFRACModel: RADFRAC
Convergence iterations:
OL ML IL Err/Tol
1 1 2 0.58175E-01
Block: C7-SEP Model: SEP
Block: FSPLIT Model: FSPLIT
Block: MIXER05Model: MIXER
> Loop $OLVER01 Method: WEGSTEIN Iteration 21
5 vars not converged, Max Err/Tol 0.89701E+02
Block: MIXER01Model: MIXER
Block: REACTOR1 Model: RSTOIC
Block: MIXER1 Model: MIXER
Block: REACTOR2 Model: RSTOIC
Block: MIXER2 Model: MIXER
Block: REACTOR3 Model: RSTOIC
Block: MIXER3 Model: MIXER
Block: REACTOR4 Model: RSTOIC
Block: FLASH3 Model: FLASH3
Block: SEP Model: SEP
Block: PUM Model: PUMP
Block: RADFRACModel: RADFRAC
Convergence iterations:
OL ML IL Err/Tol
1 1 3 0.10845
Block: C7-SEP Model: SEP
Block: FSPLIT Model: FSPLIT
Block: MIXER05Model: MIXER
> Loop $OLVER01 Method: WEGSTEIN Iteration 22
5 vars not converged, Max Err/Tol-0.16696E+03
Block: MIXER01Model: MIXER
Block: REACTOR1 Model: RSTOIC
Block: MIXER1 Model: MIXER
Block: REACTOR2 Model: RSTOIC
Block: MIXER2 Model: MIXER
Block: REACTOR3 Model: RSTOIC
Block: MIXER3 Model: MIXER
Block: REACTOR4 Model: RSTOIC
Block: FLASH3 Model: FLASH3
Block: SEP Model: SEP
Block: PUM Model: PUMP
Block: RADFRACModel: RADFRAC
Convergence iterations:
OL ML IL Err/Tol
1 1 3 0.33761
Block: C7-SEP Model: SEP
Block: FSPLIT Model: FSPLIT
Block: MIXER05Model: MIXER
> Loop $OLVER01 Method: WEGSTEIN Iteration 23
5 vars not converged, Max Err/Tol 0.80366E+02
Block: MIXER01Model: MIXER
Block: REACTOR1 Model: RSTOIC
Block: MIXER1 Model: MIXER
Block: REACTOR2 Model: RSTOIC
Block: MIXER2 Model: MIXER
Block: REACTOR3 Model: RSTOIC
Block: MIXER3 Model: MIXER
Block: REACTOR4 Model: RSTOIC
Block: FLASH3 Model: FLASH3
Block: SEP Model: SEP
Block: PUM Model: PUMP
Block: RADFRACModel: RADFRAC
Convergence iterations:
OL ML IL Err/Tol
1 1 2 0.81440E-01
Block: C7-SEP Model: SEP
Block: FSPLIT Model: FSPLIT
Block: MIXER05Model: MIXER
> Loop $OLVER01 Method: WEGSTEIN Iteration 24
5 vars not converged, Max Err/Tol 0.76388E+02
Block: MIXER01Model: MIXER
Block: REACTOR1 Model: RSTOIC
Block: MIXER1 Model: MIXER
Block: REACTOR2 Model: RSTOIC
Block: MIXER2 Model: MIXER
Block: REACTOR3 Model: RSTOIC
Block: MIXER3 Model: MIXER
Block: REACTOR4 Model: RSTOIC
Block: FLASH3 Model: FLASH3
Block: SEP Model: SEP
Block: PUM Model: PUMP
Block: RADFRACModel: RADFRAC
Convergence iterations:
OL ML IL Err/Tol
1 1 3 0.28974
Block: C7-SEP Model: SEP
Block: FSPLIT Model: FSPLIT
Block: MIXER05Model: MIXER
> Loop $OLVER01 Method: WEGSTEIN Iteration 25
5 vars not converged, Max Err/Tol-0.23893E+03
Block: MIXER01Model: MIXER
Block: REACTOR1 Model: RSTOIC
Block: MIXER1 Model: MIXER
Block: REACTOR2 Model: RSTOIC
Block: MIXER2 Model: MIXER
Block: REACTOR3 Model: RSTOIC
Block: MIXER3 Model: MIXER
Block: REACTOR4 Model: RSTOIC
Block: FLASH3 Model: FLASH3
Block: SEP Model: SEP
Block: PUM Model: PUMP
Block: RADFRACModel: RADFRAC
Convergence iterations:
OL ML IL Err/Tol
1 1 3 0.54189
Block: C7-SEP Model: SEP
Block: FSPLIT Model: FSPLIT
Block: MIXER05Model: MIXER
> Loop $OLVER01 Method: WEGSTEIN Iteration 26
5 vars not converged, Max Err/Tol 0.10781E+03
Block: MIXER01Model: MIXER
Block: REACTOR1 Model: RSTOIC
Block: MIXER1 Model: MIXER
Block: REACTOR2 Model: RSTOIC
Block: MIXER2 Model: MIXER
Block: REACTOR3 Model: RSTOIC
Block: MIXER3 Model: MIXER
Block: REACTOR4 Model: RSTOIC
Block: FLASH3 Model: FLASH3
Block: SEP Model: SEP
Block: PUM Model: PUMP
Block: RADFRACModel: RADFRAC
Convergence iterations:
OL ML IL Err/Tol
1 1 2 0.39916E-01
Block: C7-SEP Model: SEP
Block: FSPLIT Model: FSPLIT
Block: MIXER05Model: MIXER
> Loop $OLVER01 Method: WEGSTEIN Iteration 27
5 vars not converged, Max Err/Tol-0.73511E+02
Block: MIXER01Model: MIXER
Block: REACTOR1 Model: RSTOIC
Block: MIXER1 Model: MIXER
Block: REACTOR2 Model: RSTOIC
Block: MIXER2 Model: MIXER
Block: REACTOR3 Model: RSTOIC
Block: MIXER3 Model: MIXER
Block: REACTOR4 Model: RSTOIC
Block: FLASH3 Model: FLASH3
Block: SEP Model: SEP
Block: PUM Model: PUMP
Block: RADFRACModel: RADFRAC
Convergence iterations:
OL ML IL Err/Tol
1 1 3 0.67668E-01
Block: C7-SEP Model: SEP
Block: FSPLIT Model: FSPLIT
Block: MIXER05Model: MIXER
> Loop $OLVER01 Method: WEGSTEIN Iteration 28
5 vars not converged, Max Err/Tol-0.13114E+03
Block: MIXER01Model: MIXER
Block: REACTOR1 Model: RSTOIC
Block: MIXER1 Model: MIXER
Block: REACTOR2 Model: RSTOIC
Block: MIXER2 Model: MIXER
Block: REACTOR3 Model: RSTOIC
Block: MIXER3 Model: MIXER
Block: REACTOR4 Model: RSTOIC
Block: FLASH3 Model: FLASH3
Block: SEP Model: SEP
Block: PUM Model: PUMP
Block: RADFRACModel: RADFRAC
Convergence iterations:
OL ML IL Err/Tol
1 1 3 0.25003
Block: C7-SEP Model: SEP
Block: FSPLIT Model: FSPLIT
Block: MIXER05Model: MIXER
> Loop $OLVER01 Method: WEGSTEIN Iteration 29
5 vars not converged, Max Err/Tol 0.61138E+02
Block: MIXER01Model: MIXER
Block: REACTOR1 Model: RSTOIC
Block: MIXER1 Model: MIXER
Block: REACTOR2 Model: RSTOIC
Block: MIXER2 Model: MIXER
Block: REACTOR3 Model: RSTOIC
Block: MIXER3 Model: MIXER
Block: REACTOR4 Model: RSTOIC
Block: FLASH3 Model: FLASH3
Block: SEP Model: SEP
Block: PUM Model: PUMP
Block: RADFRACModel: RADFRAC
Convergence iterations:
OL ML IL Err/Tol
1 1 2 0.73361E-01
Block: C7-SEP Model: SEP
Block: FSPLIT Model: FSPLIT
Block: MIXER05Model: MIXER
> Loop $OLVER01 Method: WEGSTEIN Iteration 30
* WARNING
CONVERGENCE BLOCK $OLVER01 NOT CONVERGED IN 30 ITERATIONS
5 vars not converged, Max Err/Tol-0.61934E+02
**ERROR
BLOCK MIXER05 IS NOT IN MASS BALANCE:
MASS INLET FLOW = 0.19625964E+03, MASS OUTLET FLOW = 0.19623042E+03
RELATIVE DIFFERENCE = 0.14889777E-03
MAY BE DUE TO A TEAR STREAM OR A STREAM FLOW MAY HAVE
BEEN CHANGED BY A FORTRAN, TRANSFER, OR BALANCE BLOCK
AFTER THE BLOCK HAD BEEN EXECUTED.
**ERROR
Convergence block $OLVER01 did not converge
normally in the final pass
->Generating block results ...
Block: PUM Model: PUMP
->Simulation calculations completed ...
***No Warnings were issued during Input Translation ***
***Summary of Simulation Errors***
Physical
Property System Simulation
Terminal Errors 0 0 0
Severe Errors 0 0 1
Errors 0 0 5
Warnings 0 0 2
提示就是这上边的这个样儿 jingwan1999 发表于 2014-6-17 06:52
光看描述，看不出什么来。
刚给了错误提示，求指点！ ->Processing input specifications ...
Flowsheet Analysis : （系统计算首先进行流程分析）
Block $OLVER01 (Method: WEGSTEIN) has been defined to converge（将$OLVER01（收敛模块1 ）定义为计算起始节点）
streams: MIX05（起始流股）
COMPUTATION ORDER FOR THE FLOWSHEET:（流程计算顺序如下）
$OLVER01 MIXER01 REACTOR1 MIXER1 REACTOR2 MIXER2 REACTOR3
|MIXER3 REACTOR4 FLASH3 SEP PUM RADFRAC C7-SEP FSPLIT
|MIXER05
(RETURN $OLVER01)（重新运行收敛模块1）
->Calculations begin ...（开始计算）
> Beginning Convergence Loop $OLVER01 Method: WEGSTEIN（收敛模块1运行收敛）
Block: MIXER01Model: MIXER（mixer01 模块运行收敛）。。一下全是
Block: REACTOR1 Model: RSTOIC
Block: MIXER1 Model: MIXER
Block: REACTOR2 Model: RSTOIC
Block: MIXER2 Model: MIXER
Block: REACTOR3 Model: RSTOIC
Block: MIXER3 Model: MIXER
Block: REACTOR4 Model: RSTOIC
Block: FLASH3 Model: FLASH3
Block: SEP Model: SEP
* WARNING
ZERO FEED TO THE BLOCK. BLOCK BYPASSED（模块sep进料量为0，出现警告）（右键单击sep进料股，检查设置是不是有问题导致该进料为0）
Block: RADFRACModel: RADFRAC（开始计算radfrac模块）
Convergence iterations:umodel
OL ML IL Err/Tol（OL外循环（一般计算设计规定（包括像塔的设计规定design spe-vary，flowsheeting options中的，model analysis tools等）） ML中循环：一般计算模块（及流程中加的模块） OL内循环：一般来计算物性）
1 1 6 116.42
2 1 5 113.73
3 1 3 395.09
4 1 3 0.26260E+18
5 1 1 0.23365E+08
6 1 1 0.29287E+06
7 1 1 67300.
8 1 1 894.43
。。。。。。。。。。。。。。。。
191 1 1 8410.0
192 1 1 8410.0
193 1 1 8410.0
194 1 1 8410.0
195 1 1 8410.0
196 1 1 8410.0
197 1 1 8410.0
198 1 1 8410.0
199 1 1 8410.0
200 1 1 8410.0
**ERROR
RADFRAC NOT CONVERGED IN 200 OUTSIDE LOOP ITERATIONS.（从这里可以看出你做的设计规定有200次，但是结算结果不收敛，其原因是由于设计规定错误，应该是设计规定的变量和自变量相关性不大，）
进料为零，是不是没有给撕裂流赋初值？ 2013qustgm205 发表于 2014-6-17 14:35
进料为零，是不是没有给撕裂流赋初值？
给了初值的啊，最主要的问题就是精馏塔那块，他的塔顶温度竟然是-260度 wangchaoreg 发表于 2014-6-17 10:41
Block: RADFRACModel: RADFRAC（开始计算radfrac模块）
Convergence iterations:umodel
我都没有设置设计规定也会有影响的吗 舟轻飏001 发表于 2014-6-17 16:28
给了初值的啊，最主要的问题就是精馏塔那块，他的塔顶温度竟然是-260度
塔顶温度这么低的话，压力设置的对不对？ 楼主还是把bkp文件发上来让大家看看吧。 2013qustgm205 发表于 2014-6-17 22:53
楼主还是把bkp文件发上来让大家看看吧。
谢谢，经过奋战已经解决问题了
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