循环泵出现警告，该怎么调整，求助大神

zy1996 · 发表于 1970-1-1 08:00:00

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 IN  30  ITERATIONS.  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 1970-1-1 08:00:00

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 1970-1-1 08:00:00

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 1970-1-1 08:00:00

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 1970-1-1 08:00:00

可以修改收敛方法Broden试试

循环泵出现警告，该怎么调整，求助大神

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