Unit operation and calibration showed that better vacuum can be obtained with lower energy consumption by Venturi technology which used the first vacuum side stream distillate as ejection liquid.

• 工业装置的运行及标定结果表明，文丘里液体喷射抽真空技术在低于蒸汽喷射抽真空技术能耗的前提下，真空度高于蒸汽喷射抽真空技术。