区域热网燃气吸收式热泵技术改造的应用分析
时晓军,何彦顺,李京洲,张海龙
摘要(Abstract)：
随着城镇化的进展集中供热面积迅速扩大，对于市政管网供热能力的扩容要求更强烈，目前常用的解决方案是提高供回水温差和新建或改造调峰燃气锅炉。本文通过对现有燃气锅炉进行吸收式热泵技术改造，利用燃气热能驱动吸收式热泵回收利用烟气余热及一次热网回水热量，将燃气锅炉的■效率从24.04%提升至41.31%,显著扩大了能源利用效率；通过增设中继回水加压泵，缓解了热网压力与负荷需求之间的矛盾，将供暖季的电厂供热比重扩大至96.52%。
关键词(KeyWords)： 燃气吸收式热泵;余热利用;能源利用效率;中继回水加压泵
基金项目(Foundation):
作者(Author): 时晓军,何彦顺,李京洲,张海龙
参考文献(References)：
- [1] 北京市城市管理委员会.北京市“十四五”时期供热发展建设规划[EB/OL].[2023-12-23].http://www.beijing.gov.cn.
- [2] YAN L,AN H L,LI W T,et al.Thermodynamic,energy consumption and economic analyses of the novel cogeneration heating system based on condensed waste heat recovery[J].Energy conversion and management,2018,177:671-681.
- [3] 中共中央，国务院.关于完整准确全面贯彻新发展理念做好碳达峰碳中和工作的意见[EB/OL].[2023-12-23].https://www.gov.cn/gongbao/content/2021/content_5649728.htm.
- [4] 李金刚，闫耀峰，刘建国，等.大型中继泵站在长输供热工程中的应用选型探讨[J].节能，2021,40(8):45-48.
- [5] 北京市人民政府.北京市碳达峰实施方案[EB/OL].[2023-12-23].https://fgw.beijing.gov.cn/fgwzwgk/zcgk/sjbmgfxwj/bjszfwj/202210/t20221014_2836238.htm.
- [6] WANG J S,LIU W Q,LIU G Y,et al.Theoretical design and analysis of the waste heat recovery system of turbine exhaust steam using an absorption heat pump for heating supply[J].Energies,2020,13:6256.
- [7] FENG L,LIN D M,LIN F,et al.Research and application of flue gas waste heat recovery in co-generation based on absorption heat-exchange[J].Procedia engineering,2016,146:594-603.
- [8] FAMIGLIETTI J,TOPPI T,PISTOCCHINI L,et al.A comparative environmental life cycle assessment between a condensing boiler and a gas driven absorption heat pump[J].Science of the total environment,2020,762:144392.
- [9] 夏雨，吴志湘，姬鹏程.降低回水温度的串级换热技术应用分析[J].区域供热，2018(5):89-92.
- [10] 韩永顺，何松.增热型吸收式热泵在城市集中供热系统中的应用分析[J].节能，2022,41(8):18-21.
- [11] 兰聪.燃气驱动吸收式热泵在集中供暖调峰中的应用研究[D].济南：山东建筑大学，2021.
- [12] LI Y,WANG L L,XU K W,et al.Optimization study of a novel district heating system based on large temperature-difference heat exchange[J].Energy conversion and management,2022,258:115517.