滑板喷射型准二级滚动转子压缩机性能  

Performance of Rotary Compressor with Vapor Injection Mechanism on Blade

作　　者：刘星如[1] 王宝龙[1] 李先庭[1] 石文星[1] 

机构地区：[1]清华大学建筑学院,北京100084

出　　处：《制冷学报》2016年第2期1-8,共8页Journal of Refrigeration

基　　金：国家自然科学基金(51176084);国家杰出青年科学基金(51125030)项目资助~~

摘　　要：本文提出一种将补气结构设置于滑板上的新型滚动转子压缩机结构,该结构能保证吸气结束后补气口才向压缩腔打开,避免了补气回流至吸气管导致的容积效率降低。通过建立数值模型,对该新型结构进行了模拟研究。结果显示：该新型结构可完全避免喷射过程中喷射制冷剂回流至吸气腔;与传统结构补气单缸滚动转子压缩机相比,带有新型喷射结构的单缸滚动转子压缩机的容积效率提升2.6%～3.7%。A novel vapor injection structure on blade for rotary compressor is put forward. In the new mechanism,the inject port will keep close until the gas suction process is finished and the compression pocket is isolated from the suction tube,which avoids the backflowing of the injection refrigerant into the suction tube and the decrease of the volumetric efficiency. Based on a verified numerical model,the performance of the new configuration is investigated. The results indicate that：（ 1） this vapor injection mechanism can well eliminate the back-flowing of the injected refrigerant;（ 2） compared with the traditional injection configuration,the novel structure can enhance the volumetric efficiency 2. 6%- 3. 7%.

关 键 词：滚动转子压缩机 中间补气 准二级压缩 容积效率 

分 类 号：TB652[一般工业技术—制冷工程] TB61