直接蒸发式CO_(2)人工冰场冰面温度影响因素  

Influence Factors of Ice Surface Temperature in Direct Evaporation CO_(2)Artificial Ice

作　　者：吴静 颜利波 叶琳 李敏霞[1] 马一太[1] 王派 Wu Jing;Yan Libo;Ye Lin;Li Minxia;Ma Yitai;Wang Pai(School of Mechanical Engineering,Tianjin University,Tianjin,300072,China;Guangdong Midea HVAC Equipment Co.,Ltd.,Foshan,528311,China;Shanghai Marine Equipment Research Institute,Shanghai,200031,China;Tianjin Key Laboratory of Refrigeration Technology,Tianjin University of Commerce,Tianjin,300134,China)

机构地区：[1]天津大学机械工程学院,天津300072 [2]广东美的暖通设备有限公司,佛山528311 [3]上海船舶设备研究所,上海200031 [4]天津商业大学机械工程学院天津市制冷技术重点实验室,天津300134

出　　处：《制冷学报》2024年第4期114-123,共10页Journal of Refrigeration

基　　金：国家重点研发计划"科技冬奥"重点专项(2021YFF0306801)资助项目;中国制冷学会课题项目(KT202002)资助

摘　　要：以直接蒸发式室内CO_(2)人工冰场为研究对象,通过建立室内冰场稳定温度场数学模型,分析了当蒸发温度为-13℃,采用12.7 mm大管径铜管供冷时,室内人工冰场场地的质流密度、排管间距、含油率等因素对冰面温度和冰面温差的影响。结果表明:润滑油含量增加会增大管内压降及冰面进出口处的温差,但由于研究的管径和质流密度相对较大,影响幅度较小;供冷排管的间距和质流密度是影响冰面温度分布的主要因素;随着排管间距和质流密度的增大,冰面温差增大。为保证冰面温差在0.5℃以内,推荐的质流密度应小于200 kg/(m^(2)·s),排管间距应小于90 mm。In this study,using a direct evaporation indoor CO_(2)artificial ice rink as the research object,we establish a mathematical model for the stable temperature field of the indoor ice rink to analyze the influence of mass flux,tube spacing,oil content,and other factors on ice surface temperature and ice temperature difference when the evaporating temperature is-13℃in a 12.7 mm diameter copper pipe.Results show that an increase in the lubricating oil content increases the pressure drop in the pipe and the temperature difference between the inlet and outlet of the ice surface.However,because the pipe diameter and mass flux investigated in this study are relatively large,the influence range is small.The temperature distribution on the ice surface is mainly affected by the distance between the cooling pipes and the mass flux.The temperature difference of the ice surface increases with an increase in tube spacing and mass flux.To ensure a temperature difference of the ice surface less than 0.5℃,the recommended mass flux should be less than 200 kg/(m^(2)·s),and the tube spacing should be less than 90 mm.

关 键 词：CO_(2) 直接蒸发 人工冰场 冰面温度 

分 类 号：TB611[一般工业技术—制冷工程] TB657.1