BCD-550WT间冷式家用冰箱制冷系统设计.docx

目录摘要···················································3关键词···················································3ABSTRACT···············································4KEY WORDS············································4前言······················································51. 方案论证···············································6流程选择···········································6冷凝器选择·········································6蒸发器选择·········································7制冷剂选择·········································7节流装置选择·······································7压缩机选择········································7过程论述···············································82.1电冰箱布置与热负荷计算······························82.1.1电冰箱布置·····································82.1.2电冰箱热负荷的计算·····························102.1.3箱体外表面凝露校核·····························122.2制冷循环热力计算···································132.2.1制冷系统的压焓图································132.2.2制冷系统的额定工况······························132.2.3热物性参数列表································142.2.4循环各性能指标计算·····························142.3冷凝器设计计算·····································152.4蒸发器设计计算·····································20 2.5压缩机热力计算及选型·······························27 2.6毛细管的计算及选型·································29 2.7结果分析···········································303.结论················································30参考文献············································30附录················································32附录一冰箱系统布置图································32附录二冷凝器装配图··································32附录三计算程序·····································33致谢················································34BCD-550WT间冷式家用冰箱制冷系统设计摘 要随着人们生活水平的日益提高，家用冰箱已经成为家用冷冻冷藏的必备设备，同时节能和环保已经成为冰箱行业发展的主流。本论文详细的说明了如何设计一台550L的间冷冰箱的步骤和相关的计算方法。例如绝热层厚度的选择、冰箱外壁面的防露校核、制冷系统的热力计算、压缩机的选型、蒸发器和冷凝器的热力计算及毛细管长度的计算。另外本文还对未来电冰箱的发展趋势、技能技术也作了一定介绍，指出家用电冰箱应该向着节能化、环保化、智能化及多功能化方向发展。关键词：间冷式；家用冰箱；节能环保BCD-550WT household refrigerators refrigeration system designAbstrac