半封闭活塞式制冷压缩机喷液的研究  

Study on Liquid Refrigerant Injection of Semi-hermetic Reciprocating Refrigeration Compressor

作　　者：王枫[1,2] 郭强 李连生[1,3] 

机构地区：[1]西安交通大学能源与动力工程学院,西安710049 [2]大连三洋压缩机有限公司,大连116033 [3]合肥通用机械研究院压缩机技术国家重点实验室,合肥230031

出　　处：《制冷学报》2010年第5期29-33,共5页Journal of Refrigeration

摘　　要：文章分析了喷液对半封闭活塞式制冷压缩机性能的影响,并以三洋C-L150M82型号压缩机进行试验,试验分析了不同工况下喷液对压缩机的排气温度、制冷量、功耗和COP的影响,以及喷液量随蒸发温度与冷凝温度的变化趋势。试验表明制冷剂喷射可以有效的降低排气温度,但同时也降低了制冷量和COP,增加了功耗。喷液的质量流量主要由喷液管和喷液吸气腔的压差,喷液率的变化与制冷量以及温度的变化不是简单的线性比例关系,合理的选择喷液毛细管,就可以优化喷液量,既能有效的降低压缩机的排气温度,又能确保压缩机的性能。The experiment was conducted to explore the effect of liquid refrigerant injection on the performance of a semi-hermetic reciprocating refrigerating compressor and the variation of the liquid refrigerant injection ratio with evaporation temperature and condensation temperature on a Sanyo model under different conditions.The results show that the liquid refrigerant injection can effectively reduce the discharge temperature, but will increase the compressor power and reduce the refrigerating capacity and the coefficient of performance （COP）.The injection ratio is non-linear with the discharge temperature.The optimization of the liquid refrigerant injection ratio by selecting the capillary tube for injection can ensure the compressor performance as well as the discharge temperature.

关 键 词：热工学 制冷压缩机 喷液 活塞式压缩机 

分 类 号：TH457[机械工程—机械制造及自动化] TB652[一般工业技术—制冷工程]