吸附-吸收复叠式三效制冷循环  

ADSORPTION-ABSORPTION CASCADING TRIPLE-EFFECT REFRIGERATION CYCLE

作　　者：姜周曙[1] 王如竹[1] 卢允庄[1] 邵渊[1] 

机构地区：[1]上海交通大学制冷与低温工程研究所,上海200030

出　　处：《化工学报》2002年第6期566-571,共6页CIESC Journal

基　　金：国家重点基础规划项目 (No.G2 0 0 0 0 2 6 30 9);中国博士后基金资助项目

摘　　要：提出一种以沸石 -水为工质对的单效吸附式制冷单元为高温级、以双效溴化锂吸收式制冷单元为低温级的吸附 -吸收复叠式三效制冷循环 .高温热源首先加热吸附式单元 ,通过能量在系统中的多效利用 ,从而提高系统性能系数 (COP) .相比于三效溴化锂吸收式制冷循环 ,复叠式循环中吸附式单元工质对温度高于 2 0 0℃时 ,也不会腐蚀材质 ,因而是一种工程上易于实现的新型制冷循环 .This paper presents a novel adsorption-absorption cascading triple-effect refrigeration cycle, which consists of a high-temperature stage of single-effect solid adsorption unit working with zeolite-water and a low-temperature stage of double-effect liquid absorption unit working with LiBr-water. High-temperature heat source is added into adsorption unit first, and its adsorption heat is then transferred to the high-pressure generator of absorption unit. The COP of the cycle can be greatly improved by the efficient utilization of energy in the system. Compared with the traditional LiBr/water triple-effect absorption system, there is no corrosive problem though the temperature of working pair could be higher than 200 °C in the adsorption unit. This new cascading refrigeration cycle is feasible in engineering. The thermodynamic characteristics of this cycle are discussed. Some simulation results are presented as well.

关 键 词：吸附 吸收 复叠式三效制冷循环 COP 沸石水 制冷工质 溴化锂吸收式制冷机 热力性能 

分 类 号：TB61[一般工业技术—制冷工程] TB651