冰箱内外压差变化对冰箱性能影响研究
Research on the influence of pressure difference changes inside and outside on refrigerator performance
崔培培 1魏邦福 1邓萍萍 1陈开松 1余涛1
作者信息
- 1. 长虹美菱股份有限公司 安徽合肥 230601
- 折叠
摘要
冰箱制冷运行过程中存在"呼吸效应",箱内外气体会随"呼吸效应"产生热质交换.通过压差实验的方法,研究单循环风冷冰箱制冷过程中箱内风机、风门、压缩机开停切换,冰箱状态变化等对箱内外压差形成机制影响.经验证:通过封闭化霜排水管,可改变外界高温高湿气体进入箱体内的途径,增大冷藏室进气量,延长外界气体进入箱内的路径,从而提升冷藏室的相对湿度,对蔬菜水果保鲜有利,同时节能减排.
Abstract
There is a"breathing effect"in the refrigerating operation of refrigerator,and the air between the inside and outside of the refrigerator will exchange heat and mass with the"breathing effect".Through the method of pressure difference experiment,studies the influence of the switch of fan,damper and compressor and the change of refrigerator penetration state on the formation mechanism of differential pressure during the refrigeration process of single-cycle frost-free refrigerator.It has been proved that by closing the frost drain pipe,the way of the outside high temperature and high humidity air entering the refrigerator can be changed,the air intake volume of the refrigerator can be increased,and the path of the outside air entering the refrigerator can be extended,so as to improve the relative humidity of the refrigerator room,which is beneficial to the freshness preservation of vegetables and fruits,and at the same time,energy saving and emission reduction.
关键词
气压差/冰箱性能/风冷冰箱/呼吸效应/热质交换Key words
Air pressure difference/Refrigerator performance/Frost-free Refrigerator/Breathing effect/Heat and mass exchange引用本文复制引用
基金项目
企业内部项目(JRM-2021-0100)
出版年
2024
国家科技期刊平台
NSTL
万方数据