【作者】 王莹； 张吉恒； 孙颖； 吴邦喜； 王起霄；

【Author】 Wang Ying1, Zhang Ji heng1, Sun Ying1, Wu Bangxi2 and Wang Qixiao11.School Of Energy And Civil Engineering, Harbin University Of Commerce,Harbin,150028, China;2.Internal Trade Engineering Design And Research Institute,Beijing,100069,China.

【机构】 哈尔滨商业大学能源与建筑工程学院； 国内贸易工程设计研究院；

【摘要】 自动复叠制冷循环系统结构简单,运行可靠,仅采用单级压缩就能实现-40℃~-150℃乃至更低的制冷温度。该循环使用非共沸混合制冷剂,其冷凝分离是否完全直接影响着循环制冷效率,因而实际工程中常采用冷凝过滤分离装置来分离混合工质,极大提高了分离效率,从而使系统制冷效率和稳定性也得到了提高。但传统的分离装置普遍存在或分离效果差、运行效率低或结构复杂、成本较高的问题,使得在实际应用中混合工质难以得到高效分离。本文通过对国内外文献深入分析研究,针对目前自动复叠循环制冷的这一技术现状,首次提出了一种新型的多级冷凝过滤分离装置,并采用配有该装置的自动复叠制冷循环系统进行实验研究,结果表明该装置不仅实现了非共沸混合工质高、低沸点组元的高效分离,其效率高达98%,而且结构简单,设计合理,成本较低,具有极强的投产实用性,目前已获得国家专利。更多还原

【Abstract】 The structure of automatic cascade refrigeration system is simple, and the operation is reliable.Using only a single stage compression can achieve to -40 ℃ ~ -150 ℃ or even lower refrigeration temperature. This cycle uses the azeotropic mixed refrigerants, whether the condensing separation is complete or not directly affects the cooling efficiency. And the actual engineering often uses multilevel condensing filtration separation device to separate mixed refrigerant,w.hich improves the separation efficiency, so that the cooling efficiency and stability of the system is improved. But the traditional separation devices are universally poor separation effect, low operation efficiency or complicated structure, high cost, Make it hard to get efficient separation of the mixed refrigerant in actual application. Through the in-depthly studiy and analysis of the domestic and the foreign literatures, in view of this present application situation of the automatic cascade cycle refrigeration technology, we propose a new type of multilevel condensing filtration separation device and adopt automatic cascade refrigeration system equipping with the device to set up a text-bed for actual application research. The results show that the device can seperate high and low boiling point group efficient ly,and the efficiency is as high as 98%,and even has the reasonable design, simple structure, low cost, strongly practical production.At present, The nw kind of multistage condensation filtration disengaging gear has been granted the national patent.更多还原