在用R12离心式冷水机组替代物的选择

Selection of refrigerant substitute in R12 centrifugal water chillers in service

根据相似原理 ,分析了现离心式冷水机组使用的制冷剂R1 1和R1 2的替代物物性的特殊要求 ,计算出各参数对出口压力的影响 ,得到替代物的选择原则 ,并筛选出两种综合性能较为优越的R1 2的替代物LXR1和LXR2。

Analyzes the special requirements of substitutes of R11 and R12 refrigerants in centrifugal water chillers in service according to similitude theory and works out influences on exit pressure by parameters. Obtains the selection principle of refrigerant substitutes in existing centrifugal water chillers. Screens out two substitutes, LXR1 and LXR2, which have superior performance.