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本文对在吸收式制冷机中采用的新溶液,就其效果进行了评价,指出:氯化胆碱水溶液,质量比为8∶1的氯化钙-氯化胆碱盐水溶液,具有价格低廉且对碳钢材料腐蚀性小的优点,在蒸发温度10℃以上的领域内,有可能代替目前常用的溴化锂水溶液。甲胺-甘油溶液化学性质稳定,和碳钢不起反应且可消除精馏过程,在蒸发温度0℃以下的领域内,有可能代替目前常用的氨水溶液。文中对这几种新工质的物理、化学性质及用于吸收式制冷机中的热力指标进行了分析研究。
In this paper, the new solution used in the absorption chiller was evaluated for its effectiveness, pointing out that an aqueous solution of choline chloride with a mass ratio of 8: 1 of calcium chloride-choline chloride solution has the advantages of low cost The advantages of small corrosive carbon steel material, in the evaporation temperature of 10 ℃ above the area, it is possible to replace the commonly used lithium bromide solution. Methylamine - glycerol solution of chemical stability, and carbon steel can not react and eliminate the distillation process, the evaporation temperature below 0 ℃ in the field, it is possible to replace the current commonly used ammonia solution. In this paper, the physical and chemical properties of these new refrigerants and the thermodynamic indicators used in the absorption chiller are analyzed.