带热回收的室内冰场CO_(2)制冷系统设计与分析  

Design and Analysis of CO 2 Refrigeration System for Indoor Ice Rink with Heat Recovery

作　　者：姚瑶[1] 李敏霞[1] 党超镔 董丽玮 马一太[1] 田华[1] 王派[1] Yao Yao;Li Minxia;Dang Chaobin;Dong Liwei;Ma Yitai;Tian Hua;Wang Pai(Key Laboratory of High Efficiency Utilization of Medium and Low Temperature Heat Energy,Ministry of Education,Tianjin University,Tianjin,300350,China;Fukui University,Fukui,9100017,Japan)

机构地区：[1]天津大学中低温热能高效利用教育部重点实验室,天津300350 [2]福井大学,福井9100017

出　　处：《制冷学报》2022年第6期49-56,共8页Journal of Refrigeration

基　　金：国家重点研发计划(2021YFF0306801)资助项目。

摘　　要：室内冰场的主要能源需求为制冷和用热,若制冷系统能同时满足冷热两方面需求,可大幅提高运行效率。本文以天津地区某1800 m^(2)冰球场为研究对象,对带热回收的室内冰场CO_(2)制冷系统进行分析,提出了系统实际运行时全年综合利用系数ACOP_(hc),并基于冰球场实际用热需求对4种充分利用余热的热回收系统进行对比。结果表明:加入热回收的CO_(2)制冷系统运行更平稳,压缩机排气直接与用热设备进行热量交换的冰场双级压缩制冷系统ACOP_(hc)最大,为6.77,冬季运行时,其综合利用系数COP_(hc)可达7.38。The main energy requirements of indoor ice rinks are refrigeration and heat.If the refrigeration system can simultaneously meet the refrigeration and heating loads,the system efficiency can be significantly improved.In this study,the CO_(2)refrigeration system of an indoor ice rink with heat recovery is analyzed,considering an 1800 m^(2)ice hockey rink in Tianjin,China,as the research object.The annual comprehensive utilization coefficient(ACOP_(hc))during the actual operation of the system is proposed.Four heat recovery systems that maximize the use of discharged heat were compared based on the actual heat consumption requirements of the system.The results demonstrate that the CO_(2)refrigeration system with heat recovery runs more smoothly.The two-stage compression refrigeration system of the ice rink that directly utilized the heat from the discharge gas leads to the highest ACOP_(hc)of 6.77;in winter,COP_(hc)can exceed 7.38.

关 键 词：制冷系统 冰场 热负荷 综合利用系数 CO_(2) 

分 类 号：TB69[一般工业技术—制冷工程] TQ051.5[化学工程]