分布式冷热电联供系统中低温余热利用技术研究进展  

Low-temperature waste heat utilization technology in distributed combined cooling,heating,and power(CCHP)systems

作　　者：黄兆云 罗向龙[1] 蒋润花[2] HUANG Zhao-yun;LUO Xiang-long;JIANG Run-hua

机构地区：[1]广东工业大学材料与能源学院,广东广州510006 [2]东莞理工学院,广东东莞523808

出　　处：《节能》2024年第9期116-121,共6页Energy Conservation

基　　金：广东省基础与应用基础研究基金自然科学基金面上项目(项目编号:2021A1515012426);广东省基础与应用基础研究基金自然科学基金面上项目(项目编号:2022A1515011053)。

摘　　要：冷热电联供(CCHP)系统中存在大量低温余热,高效利用低温余热可以提高系统能源利用效率和CCHP热效率,降低能源消耗和环境污染。对CCHP系统中常见的低温余热利用技术进行综述。低温余热利用方式分为同级利用和升级利用,同级利用主要是为能级相近的用户供热,升级利用主要有余热发电技术、热泵/制冷技术、除湿技术。对各低温余热升级利用技术的原理、类别、优缺点以及结构优化、设备改造、热力系统耦合等进行总结,分析各技术在提高能源利用效率、CCHP热效率和节约能耗方面的潜力。There is a large amount of low-temperature waste heat in the combined cooling,heating and power(CCHP)system,and the efficient use of low-temperature waste heat can improve the energy utilization efficiency of the system and the thermal efficiency of CCHP,and reduce energy consumption and environmental pollution.The paper reviews the common low-temperature waste heat utilization technologies in CCHP systems.The low-temperature waste heat utilization mode is divided into same-level utilization and upgraded utilization,the same-level utilization is mainly for the heating of users with similar energy levels,and the upgraded utilization mainly includes waste heat power generation technology,heat pump/refrigeration technology,and dehumidification technology.The paper summarizes the principles,categories,advantages and disadvantages of various low-temperature waste heat upgrading and utilization technologies,as well as structural optimization,equipment transformation,and thermal system coupling,and analyzes the potential of each technology in improving energy utilization efficiency,CCHP thermal efficiency and energy saving.

关 键 词：冷热电联供 低温余热 供热 

分 类 号：TE624[石油与天然气工程—油气加工工程]