zy1996 发表于 2017-7-8 12:22:55

循环泵出现警告,该怎么调整,求助大神

The following Unit Operation blocks were
completed with warnings:
B13

The following Convergence blocks were
completed with warnings:
$OLVER01

The following messages were issued during Input Translation:

   INFORMATION
   THERE ARE HENRY COMPONENTS DEFINED IN THIS CASE, THE BINARY DATABANK
   WILL BE SEARCHED AUTOMATICALLY FOR ANY AVAILABLE HENRY CONSTANTS.

   INFORMATION IN PHYSICAL PROPERTY SYSTEM
   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 ELECPURE. THESE PARAMETERS ARE USED WITH ELECNRTL METHOD.
   UNLESS YOU ENTER YOUR OWN PARAMETERS IN PROP-DATA PARAGRAPHS.
   PARAMETER PLXANT RETRIEVED FOR COMPONENT H2O
   PARAMETER CPAQ0 RETRIEVED FOR COMPONENT HSO4-
   PARAMETER THRSWT(ELEMENT/3) RETRIEVED FOR COMPONENT H2O
   PARAMETER VLBROC RETRIEVED FOR COMPONENT NH3
   PARAMETER CPAQ0 RETRIEVED FOR COMPONENT SO4--






循环泵的警告
*WARNING
   FLASH CALCULATIONS FAILED TO CONVERGE IN30ITERATIONS.VAPOR PRESSURE
   CALCULATION FAILED TO CONVERGE. NPSH AVAILABLE IS UNRELIABLE.

-INFORMATION
   NET POSITIVE SUCTION HEAD IS LESS THAN ZERO




给伤痛微笑 发表于 2017-7-8 12:22:55

可能是泵汽蚀了,试着提高入口压力试试,或在泵前加一个冷却器

zy1996 发表于 2017-7-8 12:22:55

给伤痛微笑 发表于 2017-7-8 14:22
可能是泵汽蚀了,试着提高入口压力试试,或在泵前加一个冷却器

*WARNING
   CONVERGENCE BLOCK $OLVER02 NOT CONVERGED IN 30 ITERATIONS

** ERROR
   Convergence block $OLVER02 did not converge
   normally in the final pass


大神这个怎么调整?

给伤痛微笑 发表于 2017-7-8 12:22:55

模块在30次迭代计算仍没有收敛,需要具体问题具体对待

xytde 发表于 2017-7-8 12:22:55

可以修改收敛方法Broden试试
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