基于辐射制冷膜的变电箱柜节能降温特性实验研究  

Experimental Study on Energy-saving and Cooling Characteristics of Substation Cabinets Based on Radiative Cooling Film

作　　者：马志豪 易知通 吴宇 聂辅亮 杨荣清 徐静涛 MA Zhihao;YI Zhitong;WU Yu;NIE Fuiang;YANG Rongqing;XU Jingtao(School of Energy and Power Engineering,Huazhong University of Science and Technology,Wuhan 430074,Hubei,China;Ningbo Ruiling Advanced Energy Materials Institute Co.,Ltd.,Ningbo 315500,Zhejiang,China;State Grid Putian Electric Power Supply Company,Putian 351100,Fujian,China)

机构地区：[1]华中科技大学能源与动力工程学院,湖北武汉430074 [2]宁波瑞凌新能源材料研究院有限公司,浙江宁波315500 [3]国网福建省电力有限公司莆田供电公司,福建莆田351100

出　　处：《制冷技术》2024年第5期60-66,共7页Chinese Journal of Refrigeration Technology

摘　　要：为了解决变电站设备在运行中因过热现象而造成运维成本提升,安全隐患增加的问题,本文将辐射制冷膜贴于不同变电箱柜(开关端子箱、刀闸箱、开关智能控制柜(有空调))的外表面,并通过长周期的实验测试,研究了辐射制冷膜对箱柜表面,内部空气温度以及空调能耗的影响。结果表明:应用辐射制冷膜后,开关端子箱内表面及内部空气最高温降分别为17.6℃和5.8℃,刀闸箱内表面及内部空气最高温降分别为24.6℃和7.2℃,开关智能控制柜表面最高降温为11℃。节能方面,贴膜后开关智能控制柜内空调的运行时长平均降低26.2%,空调节省电耗量可达629(kW·h)/年。辐射制冷作为一种新型的被动降温方案,能够有效地解决变电箱柜运行维护中存在的问题。In order to address problems induced by overheating in the operation of the substation equipment,such as increased maintenance costs and security risks,radiative cooling films are attached to the outer surface of the different substation cabinets(switch terminal cabinet,breaker cabinet,and intelligent switch control cabinet(with air-conditioning)).Through the long period test,this work studied the effect of the radiation cooling film on the surface temperature,internal air temperature,and air-conditioning energy consumption of cabinets.Results show that the maximum temperature drop of the inner surface and internal air of the switch terminal cabinet is 17.6℃and 5.8℃respectively,the maximum temperature drop of the inner surface and internal air of the breaker cabinet is 24.6℃and 7.2℃respectively,and the maximum temperature drop of the inner surface of the intelligent switch control cabinet is 11℃.After coating,the running time of the air-conditioning in the intelligent switch control cabinet is reduced by 26.2%on average,and the energy-saving of the air-conditioning could reach 629(kW·h)/year.As a new passive cooling scheme,radiation cooling could effectively address problems existing in the operation and maintenance of substation cabinets.

关 键 词：变电站设备 过热 辐射制冷 降温 

分 类 号：TB611[一般工业技术—制冷工程] P422.61[天文地球—大气科学及气象学]