Aspen模拟氨合成过程中，流程图上面没有显示出错误，为啥计算结果中有这么多错误？

douhaifeng12 · 发表于 1970-1-1 08:00:00

本帖最后由 douhaifeng12 于 2016-5-20 15:28 编辑

为什么流程图上面没显示出有错误？？温度，压力都是对的计算结果：
->Processing input specifications ...

   THE PAIR PARAMETERS FOR ELECNRTL OPTION SET HAS BEEN RETRIEVED FROM
   DATABANK ENRTL-RK.

   INFORMATION
   PURE COMPONENT PARAMETERS FOR SOME COMPONENTS ARE RETRIEVED FROM
   DATABANK.  THESE PARAMETERS ARE USED WITH THE ELECNRTL OPTION SET
   UNLESS YOU ENTER YOUR OWN PARAMETERS IN PROP-DATA PARAGRAPHS.
   PARAMETER PLXANT RETRIEVED FOR COMPONENT H2O

   PARAMETER THRSWT(ELEMENT/3) RETRIEVED FOR COMPONENT H2O

   PARAMETER VLBROC RETRIEVED FOR COMPONENT NH3

  * WARNING WHILE CHECKING INPUT SPECIFICATIONS
   INCONSISTENT PROPERTIES DETECTED FOR STREAM "3"
   FROM BLOCK: "R1"  PROPERTIES: PENG-ROB
      TO BLOCK: "E1"  PROPERTIES: RK-SOAVE

  * WARNING WHILE CHECKING INPUT SPECIFICATIONS
   INCONSISTENT PROPERTIES DETECTED FOR STREAM "5"
   FROM BLOCK: "E2"  PROPERTIES: PR-BM
      TO BLOCK: "E1"  PROPERTIES: RK-SOAVE

  * WARNING WHILE CHECKING INPUT SPECIFICATIONS
   INCONSISTENT FREE-WATER DETECTED FOR STREAM "8"
   FROM BLOCK: "E3"  FREE-WATER: NO
      TO BLOCK: "E2"  FREE-WATER: YES

  Flowsheet Analysis :

Block $OLVER01 (Method: WEGSTEIN) has been defined to converge
      streams: 5       8

COMPUTATION ORDER FOR THE FLOWSHEET:
R1
$OLVER01 E1 E2 E3
(RETURN $OLVER01)

->Calculations begin ...

Block: R1    Model: RSTOIC

> Beginning Convergence Loop $OLVER01 Method: WEGSTEIN

Block: E1    Model: HEATX
  * WARNING
   AT LEAST ONE FEED HAS ZERO FLOW
   BLOCK BYPASSED

Block: E2    Model: HEATX
  * WARNING
   AT LEAST ONE FEED HAS ZERO FLOW
   BLOCK BYPASSED

Block: E3    Model: HEATX

> Loop $OLVER01 Method: WEGSTEIN    Iteration 1
  * WARNING
   THE VALUES FOR SOME VARIABLES ARE MISSING.
   THIS MAY BE CAUSED BY A ZERO-FLOW STREAM.
   THE PREVIOUS VALUES OF THE VARIABLES WILL BE USED.
   THE MISSING VARIABLES ARE:
   "7" THRU "8"

2 vars not converged, Max Err/Tol 0.10000E+07

Block: E1    Model: HEATX
  * WARNING
   AT LEAST ONE FEED HAS ZERO FLOW
   BLOCK BYPASSED

Block: E2    Model: HEATX
  **  ERROR
   INVALID HOT STREAM TEMPERATURE SPECIFICATION
   T-SPEC =  5.4215000D+02 IS LESS THAN TCIN =  6.6635106D+02

Block: E3    Model: HEATX

> Loop $OLVER01 Method: WEGSTEIN    Iteration 2
4 vars not converged, Max Err/Tol 0.10000E+05

Block: E1    Model: HEATX
  **  ERROR
   TEMPERATURE CROSSOVER DETECTED
   RE-CALCULATING WITH MINIMUM APPROACH TEMP. SPEC

Block: E2    Model: HEATX
  **  ERROR
   INVALID HOT STREAM TEMPERATURE SPECIFICATION
   T-SPEC =  5.4215000D+02 IS LESS THAN TCIN =  6.6635106D+02

Block: E3    Model: HEATX

> Loop $OLVER01 Method: WEGSTEIN    Iteration 3
1 vars not converged, Max Err/Tol  -0.10096E+03

Block: E1    Model: HEATX
  **  ERROR
   TEMPERATURE CROSSOVER DETECTED
   RE-CALCULATING WITH MINIMUM APPROACH TEMP. SPEC

Block: E2    Model: HEATX
  **  ERROR
   INVALID HOT STREAM TEMPERATURE SPECIFICATION
   T-SPEC =  5.4215000D+02 IS LESS THAN TCIN =  6.0985817D+02

Block: E3    Model: HEATX

> Loop $OLVER01 Method: WEGSTEIN    Iteration 4
1 vars not converged, Max Err/Tol  -0.10096E+03

Block: E1    Model: HEATX
  **  ERROR
   TEMPERATURE CROSSOVER DETECTED
   RE-CALCULATING WITH MINIMUM APPROACH TEMP. SPEC

Block: E2    Model: HEATX
  **  ERROR
   INVALID HOT STREAM TEMPERATURE SPECIFICATION
   T-SPEC =  5.4215000D+02 IS LESS THAN TCIN =  6.0985817D+02

Block: E3    Model: HEATX

> Loop $OLVER01 Method: WEGSTEIN    Iteration 5
1 vars not converged, Max Err/Tol  -0.99947E+02

Block: E1    Model: HEATX
  **  ERROR
   TEMPERATURE CROSSOVER DETECTED
   RE-CALCULATING WITH MINIMUM APPROACH TEMP. SPEC

Block: E2    Model: HEATX
  **  ERROR
   INVALID HOT STREAM TEMPERATURE SPECIFICATION
   T-SPEC =  5.4215000D+02 IS LESS THAN TCIN =  5.5481762D+02

Block: E3    Model: HEATX

> Loop $OLVER01 Method: WEGSTEIN    Iteration 6
1 vars not converged, Max Err/Tol  -0.99947E+02

Block: E1    Model: HEATX
  **  ERROR
   TEMPERATURE CROSSOVER DETECTED
   RE-CALCULATING WITH MINIMUM APPROACH TEMP. SPEC

Block: E2    Model: HEATX
  **  ERROR
   INVALID HOT STREAM TEMPERATURE SPECIFICATION
   T-SPEC =  5.4215000D+02 IS LESS THAN TCIN =  5.5481762D+02

Block: E3    Model: HEATX

> Loop $OLVER01 Method: WEGSTEIN    Iteration 7
1 vars not converged, Max Err/Tol  -0.98958E+02

Block: E1    Model: HEATX
  **  ERROR
   TEMPERATURE CROSSOVER DETECTED
   RE-CALCULATING WITH MINIMUM APPROACH TEMP. SPEC

Block: E2    Model: HEATX
  **  ERROR
   TEMPERATURE CROSSOVER DETECTED
   RE-CALCULATING WITH MINIMUM APPROACH TEMP. SPEC

Block: E3    Model: HEATX

> Loop $OLVER01 Method: WEGSTEIN    Iteration 8
2 vars not converged, Max Err/Tol  -0.32016E+03

Block: E1    Model: HEATX
  **  ERROR
   INVALID HOT STREAM TEMPERATURE SPECIFICATION
   T-SPEC =  6.8015000D+02 IS LESS THAN TCIN =  6.8560585D+02

Block: E2    Model: HEATX
  **  ERROR
   TEMPERATURE CROSSOVER DETECTED
   RE-CALCULATING WITH MINIMUM APPROACH TEMP. SPEC

Block: E3    Model: HEATX

> Loop $OLVER01 Method: WEGSTEIN    Iteration 9
2 vars not converged, Max Err/Tol  -0.86217E+02

Block: E1    Model: HEATX
  **  ERROR
   "COLD" STREAM IS HOTTER THAN "HOT" STREAM
   BLOCK BYPASSED

Block: E2    Model: HEATX
  **  ERROR
   TEMPERATURE CROSSOVER DETECTED
   RE-CALCULATING WITH MINIMUM APPROACH TEMP. SPEC

Block: E3    Model: HEATX

> Loop $OLVER01 Method: WEGSTEIN    Iteration 10
2 vars not converged, Max Err/Tol  -0.85200E+02

Block: E1    Model: HEATX
  **  ERROR
   INVALID HOT STREAM TEMPERATURE SPECIFICATION
   T-SPEC =  6.8015000D+02 IS LESS THAN TCIN =  7.2061191D+02

Block: E2    Model: HEATX
  **  ERROR
   TEMPERATURE CROSSOVER DETECTED
   RE-CALCULATING WITH MINIMUM APPROACH TEMP. SPEC

Block: E3    Model: HEATX

> Loop $OLVER01 Method: WEGSTEIN    Iteration 11
1 vars not converged, Max Err/Tol  -0.84480E+02

Block: E1    Model: HEATX
  **  ERROR
   INVALID HOT STREAM TEMPERATURE SPECIFICATION
   T-SPEC =  6.8015000D+02 IS LESS THAN TCIN =  7.2061191D+02

Block: E2    Model: HEATX
  **  ERROR
   TEMPERATURE CROSSOVER DETECTED
   RE-CALCULATING WITH MINIMUM APPROACH TEMP. SPEC

Block: E3    Model: HEATX

> Loop $OLVER01 Method: WEGSTEIN    Iteration 12
1 vars not converged, Max Err/Tol  -0.83773E+02

Block: E1    Model: HEATX
  **  ERROR
   INVALID HOT STREAM TEMPERATURE SPECIFICATION
   T-SPEC =  6.8015000D+02 IS LESS THAN TCIN =  7.2061191D+02

Block: E2    Model: HEATX
  **  ERROR
   TEMPERATURE CROSSOVER DETECTED
   RE-CALCULATING WITH MINIMUM APPROACH TEMP. SPEC

Block: E3    Model: HEATX

> Loop $OLVER01 Method: WEGSTEIN    Iteration 13
1 vars not converged, Max Err/Tol  -0.83077E+02

Block: E1    Model: HEATX
  **  ERROR
   INVALID HOT STREAM TEMPERATURE SPECIFICATION
   T-SPEC =  6.8015000D+02 IS LESS THAN TCIN =  7.2061191D+02

Block: E2    Model: HEATX
  **  ERROR
   TEMPERATURE CROSSOVER DETECTED
   RE-CALCULATING WITH MINIMUM APPROACH TEMP. SPEC

Block: E3    Model: HEATX

> Loop $OLVER01 Method: WEGSTEIN    Iteration 14
1 vars not converged, Max Err/Tol  -0.82392E+02

Block: E1    Model: HEATX
  **  ERROR
   INVALID HOT STREAM TEMPERATURE SPECIFICATION
   T-SPEC =  6.8015000D+02 IS LESS THAN TCIN =  7.2061191D+02

Block: E2    Model: HEATX
  **  ERROR
   TEMPERATURE CROSSOVER DETECTED
   RE-CALCULATING WITH MINIMUM APPROACH TEMP. SPEC

Block: E3    Model: HEATX

> Loop $OLVER01 Method: WEGSTEIN    Iteration 15
1 vars not converged, Max Err/Tol  -0.81719E+02

Block: E1    Model: HEATX
  **  ERROR
   INVALID HOT STREAM TEMPERATURE SPECIFICATION
   T-SPEC =  6.8015000D+02 IS LESS THAN TCIN =  7.2061191D+02

Block: E2    Model: HEATX
  **  ERROR
   TEMPERATURE CROSSOVER DETECTED
   RE-CALCULATING WITH MINIMUM APPROACH TEMP. SPEC

Block: E3    Model: HEATX

> Loop $OLVER01 Method: WEGSTEIN    Iteration 16
1 vars not converged, Max Err/Tol  -0.81056E+02

Block: E1    Model: HEATX
  **  ERROR
   INVALID HOT STREAM TEMPERATURE SPECIFICATION
   T-SPEC =  6.8015000D+02 IS LESS THAN TCIN =  7.2061191D+02

Block: E2    Model: HEATX
  **  ERROR
   TEMPERATURE CROSSOVER DETECTED
   RE-CALCULATING WITH MINIMUM APPROACH TEMP. SPEC

Block: E3    Model: HEATX

> Loop $OLVER01 Method: WEGSTEIN    Iteration 17
1 vars not converged, Max Err/Tol  -0.80405E+02

Block: E1    Model: HEATX
  **  ERROR
   INVALID HOT STREAM TEMPERATURE SPECIFICATION
   T-SPEC =  6.8015000D+02 IS LESS THAN TCIN =  7.2061191D+02

Block: E2    Model: HEATX
  **  ERROR
   TEMPERATURE CROSSOVER DETECTED
   RE-CALCULATING WITH MINIMUM APPROACH TEMP. SPEC

Block: E3    Model: HEATX

> Loop $OLVER01 Method: WEGSTEIN    Iteration 18
1 vars not converged, Max Err/Tol  -0.79763E+02

Block: E1    Model: HEATX
  **  ERROR
   INVALID HOT STREAM TEMPERATURE SPECIFICATION
   T-SPEC =  6.8015000D+02 IS LESS THAN TCIN =  7.2061191D+02

Block: E2    Model: HEATX

Block: E3    Model: HEATX

> Loop $OLVER01 Method: WEGSTEIN    Iteration 19
2 vars not converged, Max Err/Tol  -0.51302E+02

Block: E1    Model: HEATX
  **  ERROR
   INVALID HOT STREAM TEMPERATURE SPECIFICATION
   T-SPEC =  6.8015000D+02 IS LESS THAN TCIN =  7.0307930D+02

Block: E2    Model: HEATX

Block: E3    Model: HEATX

> Loop $OLVER01 Method: WEGSTEIN    Iteration 20
2 vars not converged, Max Err/Tol  -0.17000E+03

Block: E1    Model: HEATX
  **  ERROR
   TEMPERATURE CROSSOVER DETECTED
   RE-CALCULATING WITH MINIMUM APPROACH TEMP. SPEC

Block: E2    Model: HEATX

Block: E3    Model: HEATX

> Loop $OLVER01 Method: WEGSTEIN    Iteration 21
1 vars not converged, Max Err/Tol  -0.99862E+02

Block: E1    Model: HEATX

Block: E2    Model: HEATX

Block: E3    Model: HEATX

> Loop $OLVER01 Method: WEGSTEIN    Iteration 22
3 vars not converged, Max Err/Tol  -0.36216E+03

Block: E1    Model: HEATX

Block: E2    Model: HEATX

Block: E3    Model: HEATX

> Loop $OLVER01 Method: WEGSTEIN    Iteration 23
1 vars not converged, Max Err/Tol  -0.31357E+02

Block: E1    Model: HEATX

Block: E2    Model: HEATX

Block: E3    Model: HEATX

> Loop $OLVER01 Method: WEGSTEIN    Iteration 24
# Converged             Max Err/Tol 0.00000E+00

->Generating block results ...

Block: E1    Model: HEATX

Block: E2    Model: HEATX

Block: E3    Model: HEATX

->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             36
      Warnings    0             0             5

Aspen模拟氨合成过程中，流程图上面没有显示出错误，为啥计算结果中有这么多错误？

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