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目前,液体蒸发制冷技术包括蒸汽压缩式制冷技术、吸收式制冷技术、蒸汽喷射式制冷技术、吸附式制冷技术等制冷技术,其特点为利用制冷剂(工质)在低温低压下由液态汽化成汽态所需要的相变能量作为制冷量进行制冷。溴化锂吸收式制冷机是目前大中型空调制冷的主流机型,“5°C以上”的制冷温度,使溴化锂吸收式制冷机的应用范围受到限制,如何解决溴化锂吸收式制冷机在摄氏零度以下的蒸发温度下工作,成为其扩大应用范围的技术关键。本文主要介绍制得低于主制冷剂冰点以下冷源的方法及其配套的制冷系统。
At present, the liquid evaporative cooling technology includes vapor compression refrigeration technology, absorption refrigeration technology, steam injection refrigeration technology, adsorption refrigeration technology and other refrigeration technology, which is characterized by the use of refrigerant (working fluid) at low temperature and pressure from the liquid vaporized into The phase transition energy required for the vapor phase is used as the cooling capacity for cooling. Lithium bromide absorption chiller is currently the mainstream of large and medium-sized air-conditioning refrigeration models, “5 ° C above ” the cooling temperature, the lithium bromide absorption chiller application is limited, how to solve the lithium bromide absorption chiller at zero degrees Celsius The following evaporation temperature work, as its expanding application of the key technology. This article describes the preparation of lower than the main refrigerant below the freezing point of the cold source and its supporting refrigeration system.