气液分离 Flash2 中计算质量不守恒 求大佬指教

XARX

ERROR
   BLOCK FLASH2 IS NOT IN MASS BALANCE:
   MASS INLET FLOW = 0.28600025E+01, MASS OUTLET FLOW = 0.28154419E+01
   RELATIVE DIFFERENCE = 0.15827215E-01
   MAY BE DUE TO A TEAR STREAM OR A STREAM FLOW MAY HAVE BEEN
   CHANGED BY A CALCULATOR, TRANSFER, BALANCE, OR CONVERGENCE BLOCK
   AFTER THE BLOCK HAD BEEN EXECUTED.

carbon002