闪蒸模拟过程出现错误

372366169 · 发表于 1970-1-1 08:00:00

本帖最后由 372366169 于 2013-6-28 17:37 编辑

闪蒸塔模拟之后出现这个
**  ERROR
   BLOCK SZ IS NOT IN MASS BALANCE:
   MASS INLET FLOW = 0.11604615E+03, MASS OUTLET FLOW = 0.11516358E+03
   RELATIVE DIFFERENCE = 0.76636066E-02
   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.

应该如何处理

tdl522 · 发表于 1970-1-1 08:00:00

质量不守恒，建议上传bkp文件看看。

飘逸的枫324 · 发表于 1970-1-1 08:00:00

你应该把你的具体要求贴出来吧（具体的流程过程），大哥.....

hyfxp · 发表于 1970-1-1 08:00:00

流程太复杂了看不懂

就算你这个模型建立设置没有错但是牵涉到循环比较多收敛计算顺序不当的话也会出问题的

建议分布模拟最后整合

tdl522 · 发表于 1970-1-1 08:00:00

调整了一下，3号流股不循环的waring和error基本排除掉了。
->Calculations begin ...

Block: COMPR Model: COMPR

Block: C6H6-P Model: PUMP

Block: C3H6-P Model: PUMP

> Beginning Convergence Loop $OLVER01 Method: WEGSTEIN
  Converging tear streams: OUT5    OUT8

Block: HEATER2  Model: HEATER

Block: TBT    Model: RADFRAC

   Convergence iterations:
      OL ML IL    Err/Tol
      1 1 5    2454.2
      2 1 4    771.20
      3 1 2    432.94
      4 1 3    508.52
      5 1 2    118.40
      6 1 2    83.851
      7 1 3    35.520
      8 1 2    16.859
      9 1 2    11.077
      10 1 2    6.9956
      11 1 2    4.2176
      12 1 2    1.4620
      13 1 2    0.65036
  * WARNING IN PHYSICAL PROPERTY SYSTEM
   VISCOSITY MODEL MUV2WILK HAS MISSING PARAMETERS:
   MUP (DATA SET 1) MISSING FOR COMPONENT C12H1-01.  MUP = 0 IS USED

Block: PUMP4 Model: PUMP

Block: TBWT    Model: RADFRAC

   Convergence iterations:
      OL ML IL    Err/Tol
      1 1 2    446.14
      2 1 2    607.39
      3 1 2    382.57
      4 1 2    110.18
      5 1 2    44.034
      6 1 2    35.945
      7 1 2    12.690
      8 1 2    4.0585
      9 1 2    1.9127
      10 1 2    0.74168

Block: MIX1    Model: MIXER

Block: HEATER1  Model: HEATER

Block: PUMP1 Model: HEATER

Block: TBENT Model: DSTWU

Block: FS    Model: FSPLIT

Block: RS    Model: RSTOIC

> Loop $OLVER01 Method: WEGSTEIN    Iteration 1
  Converging tear streams: OUT5    OUT8
7 vars not converged, Max Err/Tol 0.10000E+07

Block: HEATER2  Model: HEATER

Block: TBT    Model: RADFRAC

   Convergence iterations:
      OL ML IL    Err/Tol
      1 1 2    0.32272

Block: PUMP4 Model: PUMP

Block: TBWT    Model: RADFRAC

   Convergence iterations:
      OL ML IL    Err/Tol
      1 1 2    0.95379

Block: MIX1    Model: MIXER

Block: HEATER1  Model: HEATER

Block: PUMP1 Model: HEATER

Block: TBENT Model: DSTWU

Block: FS    Model: FSPLIT

Block: RS    Model: RSTOIC

> Loop $OLVER01 Method: WEGSTEIN    Iteration 2
  Converging tear streams: OUT5    OUT8
# Converged             Max Err/Tol 0.37671E+00

Block: PUMP2 Model: HEATER

> Beginning Convergence Loop $OLVER02 Method: WEGSTEIN
  Converging tear streams: OUT18

Block: YBBT    Model: RADFRAC

   Convergence iterations:
      OL ML IL    Err/Tol
      1 1 2    50.516
      2 1 2    3.2502
      3 1 3    0.42774

Block: PUMP3 Model: PUMP

Block: EYBBT Model: DSTWU

Block: MIX2    Model: MIXER

Block: HEATER Model: HEATER

Block: RS2    Model: RSTOIC

> Loop $OLVER02 Method: WEGSTEIN    Iteration 1
  Converging tear streams: OUT18
1 vars not converged, Max Err/Tol  -0.48501E+02

Block: YBBT    Model: RADFRAC

   Convergence iterations:
      OL ML IL    Err/Tol
      1 1 2    0.84346E-02

Block: PUMP3 Model: PUMP

Block: EYBBT Model: DSTWU

Block: MIX2    Model: MIXER

Block: HEATER Model: HEATER

Block: RS2    Model: RSTOIC

> Loop $OLVER02 Method: WEGSTEIN    Iteration 2
  Converging tear streams: OUT18
# Converged             Max Err/Tol 0.35855E-01

Block: PUMP5 Model: PUMP

Block: MIX3    Model: MIXER

Block: O1    Model: RSTOIC

Block: O2    Model: RSTOIC

Block: SZ    Model: FLASH2

->Generating block results ...

Block: C3H6-P Model: PUMP

Block: C6H6-P Model: PUMP

Block: HEATER1  Model: HEATER

Block: HEATER2  Model: HEATER

Block: PUMP1 Model: HEATER

Block: PUMP2 Model: HEATER

Block: PUMP3 Model: PUMP

Block: PUMP4 Model: PUMP

Block: HEATER Model: HEATER

Block: PUMP5 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             0
         Errors    0             0             0
      Warnings    1             0             0

还剩一个TBT的警告。

马后炮化工论坛-流程-3号未循环.zip (82.48 KB, 下载次数: 15)

tdl522 · 发表于 1970-1-1 08:00:00

3号物流闭合的情况，2个waring。results available with warning

->Calculations begin ...

Block: COMPR Model: COMPR

Block: C6H6-P Model: PUMP

Block: C3H6-P Model: PUMP

> Beginning Convergence Loop $OLVER01 Method: WEGSTEIN
  Converging tear streams: OUT5    OUT8

Block: HEATER2  Model: HEATER

Block: TBT    Model: RADFRAC

   Convergence iterations:
      OL ML IL    Err/Tol
      1 1 5    2454.2
      2 1 4    771.20
      3 1 2    432.94
      4 1 3    508.52
      5 1 2    118.40
      6 1 2    83.851
      7 1 3    35.520
      8 1 2    16.859
      9 1 2    11.077
      10 1 2    6.9956
      11 1 2    4.2176
      12 1 2    1.4620
      13 1 2    0.65036
  * WARNING IN PHYSICAL PROPERTY SYSTEM
   VISCOSITY MODEL MUV2WILK HAS MISSING PARAMETERS:
   MUP (DATA SET 1) MISSING FOR COMPONENT C12H1-01.  MUP = 0 IS USED

Block: PUMP4 Model: PUMP

Block: TBWT    Model: RADFRAC

   Convergence iterations:
      OL ML IL    Err/Tol
      1 1 2    446.14
      2 1 2    607.39
      3 1 2    382.57
      4 1 2    110.18
      5 1 2    44.034
      6 1 2    35.945
      7 1 2    12.690
      8 1 2    4.0585
      9 1 2    1.9127
      10 1 2    0.74168

Block: MIX1    Model: MIXER

Block: HEATER1  Model: HEATER

Block: PUMP1 Model: HEATER

Block: TBENT Model: DSTWU

Block: FS    Model: FSPLIT

Block: RS    Model: RSTOIC

> Loop $OLVER01 Method: WEGSTEIN    Iteration 1
  Converging tear streams: OUT5    OUT8
7 vars not converged, Max Err/Tol 0.10000E+07

Block: HEATER2  Model: HEATER

Block: TBT    Model: RADFRAC

   Convergence iterations:
      OL ML IL    Err/Tol
      1 1 2    0.32272

Block: PUMP4 Model: PUMP

Block: TBWT    Model: RADFRAC

   Convergence iterations:
      OL ML IL    Err/Tol
      1 1 2    0.95379

Block: MIX1    Model: MIXER

Block: HEATER1  Model: HEATER

Block: PUMP1 Model: HEATER

Block: TBENT Model: DSTWU

Block: FS    Model: FSPLIT

Block: RS    Model: RSTOIC

> Loop $OLVER01 Method: WEGSTEIN    Iteration 2
  Converging tear streams: OUT5    OUT8
# Converged             Max Err/Tol 0.37671E+00

Block: PUMP2 Model: HEATER

> Beginning Convergence Loop $OLVER02 Method: WEGSTEIN
  Converging tear streams: OUT18

Block: YBBT    Model: RADFRAC

   Convergence iterations:
      OL ML IL    Err/Tol
      1 1 2    50.516
      2 1 2    3.2502
      3 1 3    0.42774

Block: PUMP3 Model: PUMP

Block: EYBBT Model: DSTWU

Block: MIX2    Model: MIXER

Block: HEATER Model: HEATER

Block: RS2    Model: RSTOIC

> Loop $OLVER02 Method: WEGSTEIN    Iteration 1
  Converging tear streams: OUT18
1 vars not converged, Max Err/Tol  -0.48501E+02

Block: YBBT    Model: RADFRAC

   Convergence iterations:
      OL ML IL    Err/Tol
      1 1 2    0.84346E-02

Block: PUMP3 Model: PUMP

Block: EYBBT Model: DSTWU

Block: MIX2    Model: MIXER

Block: HEATER Model: HEATER

Block: RS2    Model: RSTOIC

> Loop $OLVER02 Method: WEGSTEIN    Iteration 2
  Converging tear streams: OUT18
# Converged             Max Err/Tol 0.35855E-01

Block: PUMP5 Model: PUMP

> Beginning Convergence Loop $OLVER03 Method: WEGSTEIN
  Converging tear streams: 3

Block: MIX3    Model: MIXER

Block: O1    Model: RSTOIC

Block: O2    Model: RSTOIC

Block: SZ    Model: FLASH2

> Loop $OLVER03 Method: WEGSTEIN    Iteration 1
  Converging tear streams: 3
# Converged             Max Err/Tol  -0.24086E-04

  * WARNING
   STREAMS CROSSING THE LOOP CONVERGED BY $OLVER03 ARE NOT IN MASS BALANCE:
   MASS INLET FLOW = 0.49939155E+01, MASS OUTLET FLOW = 0.00000000E+00
   ABSOLUTE DIFFERENCE = 0.49939155E+01
   IMBALANCE MAY BE DUE TO A LARGE RECYCLE FLOW, AND A
   RELATIVELY LOOSE TEAR STREAM TOLERANCE.

->Generating block results ...

Block: C3H6-P Model: PUMP

Block: C6H6-P Model: PUMP

Block: HEATER1  Model: HEATER

Block: HEATER2  Model: HEATER

Block: PUMP1 Model: HEATER

Block: PUMP2 Model: HEATER

Block: PUMP3 Model: PUMP

Block: PUMP4 Model: PUMP

Block: HEATER Model: HEATER

Block: PUMP5 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             0
         Errors    0             0             0
      Warnings    1             0             1

马后炮化工论坛-流程-3号物流循环.zip (82.36 KB, 下载次数: 12)

372366169 · 发表于 1970-1-1 08:00:00

tdl522 发表于 2013-6-29 10:50
3号物流闭合的情况，2个waring。results available with warning

请问您用的ASPEN 多少版本的我用7.3的打不开您给我发的数据

372366169 · 发表于 1970-1-1 08:00:00

372366169 发表于 2013-6-30 08:57
请问您用的ASPEN 多少版本的我用7.3的打不开您给我发的数据

用的7.3 打不开现在正在下8.0呢 {:1106_364:}

ptoil · 发表于 1970-1-1 08:00:00

好好学习，天天向上

zyfxhf · 发表于 1970-1-1 08:00:00

好好学习，天天向上，看看！

tianshanxue · 发表于 1970-1-1 08:00:00

{:1106_362:}
路过回复看看

372366169 · 发表于 1970-1-1 08:00:00

tianshanxue 发表于 2014-1-17 00:43
路过回复看看

我记错了我这还是通的是原料
但是现在还是出错了希望给解决一下

372366169 · 发表于 1970-1-1 08:00:00

372366169 发表于 2013-6-30 08:57
请问您用的ASPEN 多少版本的我用7.3的打不开您给我发的数据

我用的是7.3.2 版本的aspen plus

372366169 · 发表于 1970-1-1 08:00:00

tdl522 发表于 2013-6-29 10:45
调整了一下，3号流股不循环的waring和error基本排除掉了。
->Calculations begin ...

大哥用的是8.0版本的把正在安装当中下完之后好好学习一下

372366169 · 发表于 1970-1-1 08:00:00

飘逸的枫324 发表于 2013-6-28 19:23
你应该把你的具体要求贴出来吧（具体的流程过程），大哥.....

就是合成氨的时候布朗工艺深冷净化系统的模拟过程说我怕说不明白您可以上
网去看一下文献过程是比较简单的一个但是模拟起来真的好难

372366169 · 发表于 1970-1-1 08:00:00

飘逸的枫324 发表于 2013-6-28 19:23
你应该把你的具体要求贴出来吧（具体的流程过程），大哥.....

就是合成氨的时候布朗工艺深冷净化系统的模拟过程

372366169 · 发表于 1970-1-1 08:00:00

tdl522 发表于 2013-6-29 10:45
调整了一下，3号流股不循环的waring和error基本排除掉了。
->Calculations begin ...

请问一下您是如何修改的呢

扛椽树 · 发表于 1970-1-1 08:00:00

这个是因为物料循环太多次所以出现了错误吗?

shijiandouqu · 发表于 1970-1-1 08:00:00

下载下来看看

心尘泪水心 · 发表于 1970-1-1 08:00:00

看看，最近循环卡死了都

闪蒸模拟过程出现错误

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