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结合硫酸铵蒸发结晶工艺,研究蒸汽喷射热泵在刮板式薄膜蒸发中回收二次蒸汽的应用,通过对加热蒸汽耗量的计算,得出薄膜蒸发器配套使用热泵蒸发的工艺所需要的蒸汽耗量比未使用热泵蒸发工艺的蒸汽耗量明显减少。并对配套使用的蒸汽喷射泵进行了简单设计。
Combined with the evaporation crystallization process of ammonium sulfate, the application of steam jet heat pump to recover secondary steam in scraped film evaporation was studied. The calculation of heating steam consumption led to the conclusion that the steam consumption required for the thin film evaporator supporting the heat pump evaporation process Steam consumption is significantly reduced compared with the unused heat pump evaporation process. And supporting the use of steam jet pump for a simple design.