悬索桥主缆用复合除湿系统性能分析  

Performance analysis of hybrid dehumidification system for suspension bridge main cable

作　　者：薛鼎 张牧星 宋翼 胡颖健 李鹏[4] 张小松[1] Xue Ding;Zhang Muxing;Song Yi;Hu Yingjian;Li Peng;Zhang Xiaosong(School of Energy and Environment,Southeast University,Nanjing 210096,China;School of Energy and Power Engineering,Nanjing University of Science&Technology,Nanjing 210094,China;Lanbo Technology Co.,Ltd,Zhenjiang 212016,China;China Communications Highway Planning and Design Institute,Beijing 100120,China)

机构地区：[1]东南大学能源与环境学院,南京210096 [2]南京理工大学能源与动力工程学院,南京210094 [3]镇江蓝舶科技股份有限公司,镇江212016 [4]中交公路规划设计院有限公司,北京100120

出　　处：《低温与超导》2023年第5期1-7,28,共8页Cryogenics and Superconductivity

基　　金：国家自然科学基金(52142803)资助。

摘　　要：对悬索桥主缆用复合除湿系统进行了数值研究,分析了蒸发温度和再生温度对系统性能的影响,计算了夏季工况下的运行能耗。结果表明:蒸发温度与除湿能耗比(SMER)存在优化关系。进风工况35℃,85%,蒸发温度22℃时,SMER达到最大值2.12 kg/(kW·h),应控制系统的蒸发温度为22℃。提高再生温度可以增加除湿量,但会导致SMER降低。复合除湿系统夏季平均运行能耗为3902.7 kW·h,与悬索桥传统转轮除湿系统相比,节能率为70%,具有良好的节能潜力和应用前景。A numerical study of hybrid dehumidification system for suspension bridge main cables was conducted to analyze the effects of evaporation temperature and regeneration temperature on system performance.The energy consumption in summer conditions was calculated.The results show that there is an optimal relationship between evaporation temperature and specific moisture extraction rate(SMER).The maximum SMER is 2.12 kg/(kW·h)at an inlet air condition of 35℃,85%and an evaporation temperature of 22℃.Therefore,the evaporation temperature of the system should be maintained close to 22℃.The dehumidification capacity increases with the increment of regeneration temperature,but the SMER is reversed.The average energy consumption in summer of hybrid dehumidification system is 3902.7 kW·h and the energy conservation rate is 70%compared with the traditional desiccant dehumidification system of the suspension bridge,which indicates good energy conservation potential and application prospects.

关 键 词：主缆防腐 复合除湿 节能 除湿能耗比 

分 类 号：TU83[建筑科学—供热、供燃气、通风及空调工程]