陈鸥,滕达,路光杰,刘向辉,毕冬雪,韵潇

• 1:国能龙源环保有限公司
• 2:华北电力大学能源动力与机械工程学院

摘要(Abstract)：

燃煤电站锅炉尾部饱和烟气直接排放会导致大量的低品位余热损失。构建了饱和烟气余热回收集中供暖系统，分析了燃煤电站供暖抽汽参数，验证了饱和烟气余热用于加热供热管网回水的可行性，探究了以不同目标运行时集中供暖系统的经济效益，揭示了运行参数对集中供暖系统热力性能的影响特性。结果表明：以饱和烟气余热作为吸收式热泵的低温热源，经吸收式热泵回收的烟气余热温度可提升30～40℃；以350MW供热机组为例，吸收式热泵回收再利用饱和烟气余热为50.23 MW，提升供暖能力带来的经济效益明显优于增加发电量对应的经济效益，机组供热能力可提高13.4%，年度供暖收益新增1 975.20～3 442.32万元。研究结果可为燃煤电站饱和烟气余热回收再利用提供技术参考。

关键词(KeyWords)： 湿饱和烟气;余热回收;吸收式热泵;供暖抽汽;集中供暖;热力分析

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划项目（2022YFC3701503）;; 龙源环保科技项目（LYHB-23-02）;; 科环集团科技项目（KH-2023-15）~~

作者(Author): 陈鸥,滕达,路光杰,刘向辉,毕冬雪,韵潇

DOI: 10.19666/j.rlfd.202405101

参考文献(References)：

• [1]于伟静,杨鹏威,王放放,等.双碳战略背景下中国煤电技术发展与挑战[J].煤炭学报, 2023, 48(7):2641-2656.YU Weijing, YANG Pengwei, WANG Fangfang, et al.Research and challenge of coal power technology development in China under the background of dual carbon strategy[J]. Journal of China Coal Society, 2023,48(7):2641-2656.
• [2]马汀山,王伟,王东晔,等.基于熔盐储热辅助煤电机组深度调峰的系统设计及容量计算方法研究[J].热力发电, 2023, 52(7):113-118.MA Tingshan, WANG Wei, WANG Dongye, et al.Research on system design and capacity calculation method for deep peak shaving of coal-fire unit based on molten salt heat storage assistance[J]. Thermal Power Generation, 2023, 52(7):113-118.
• [3] XUE X, LIU X, ZHANG A, et al. Performance and economic analysis of a molten salt furnace thermal energy storage and peaking system coupled with thermal power units for iron and steel gas waste heat recovery[J].Applied Energy, 2024, 363(1):12301.
• [4] WANG Y, XIA P, LIU J. Research on green and low-carbon development path of the electric power industry[J]. Chinese Journal of Urban and Environmental Studies, 2023, 11(2):2350007.
• [5]冯伟忠,李励.“双碳”目标下煤电机组低碳、零碳和负碳化转型发展路径研究与实践[J].发电技术, 2022,43(3):452-461.FENG Weizhong, LI Li. Research and practice on development path of low-carbon zero-carbon and negative carbon transformation of coal-fired power units under “double carbon” targets[J]. Power Generation Technology, 2022, 43(3):452-461.
• [6] JIANG D. Transformation and development of the coal-based energy industry under the goals of carbon peaking and carbon neutrality[J]. Chinese Journal of Urban and Environmental Studies, 2022, 10(2):2250008.
• [7]王爱军,韩伟哲,武艺超,等. 660 MWe机组煤粉炉耦合生物质气燃烧污染物排放分析[J].洁净煤技术,2023, 29(5):98-104.WANG Aijun, HAN Weizhe, WU Yichao, et al. Analysis of pollutant emissions from 660 MWe pulverized coal boiler combustion coupled with biomass gas[J]. Clean Coal Technology, 2023, 29(5):98-104.
• [8]董琨,谭厚章,许鑫玮,等.我国工业锅炉技术特点和发展方向[J].洁净煤技术, 2019, 25(增刊2):1-6.DONG Kun, TAN Houzhang, XU Xinwei, et al.Technical characteristics and development direction of industrial boilers in China[J]. Clean Coal Technology,2019, 25(Suppl.2):1-6.
• [9]徐大广,李沁瑶.国产亚临界600 MW机组煤粉炉优化技术[J].热力发电, 2012, 41(6):36-37.XU Daguang, LI Qinyao. Optimization technologies for pulverized coal boilers of home-made sub-critical600 MW units[J]. Thermal Power Generation, 2012,41(6):36-37.
• [10]夏志强,李雨辰,朱新源.降低煤粉锅炉排烟温度研究进展[J].电站系统工程, 2009, 25(6):55.XIA Zhiqiang, LI Yuchen, ZHU Xinyuan. Development of reducing gas temperature of a pulverized coal boiler[J]. Power System Engineering, 2009, 25(6):55.
• [11]高凡翔,刘阳,张贵泉,等.燃煤烟气湿法协同脱硫脱碳技术研究进展[J].化工进展, 2024, 43(5):2324-2342.GAO Fanxiang, LIU Yang, ZHANG Guiquan, et al.Research progress of wet process synergistic desulfurization and decarbonization technology for coal-fired flue gas[J]. Chemical Industry and Engineering Progress, 2024, 43(5):2324-2342.
• [12]詹卓轩,赵刚,苏志刚.基于不确定性补偿的湿法脱硫系统二氧化硫超低排放控制[J].热力发电, 2023,52(12):164-172.ZHAN Zhuoxuan, ZHAO Gang, SU Zhigang. Ultra-low sulfur dioxide emission control of wet desulphurization system based on uncertainty compensation[J]. Thermal Power Generation, 2023, 52(12):164-172.
• [13] LI W. Research on effect evaluation of flue gas desulfurization transformation for coal-fired power plants[J]. Economic Management Journal, 2013, 2(3):93-98.
• [14]闫敏.燃煤烟气中潜热的回收及利用路径研究[D].济南:山东大学, 2019:8-12.YAN Min. Study on recovery and utilization way of latent heat in coal-fired flue gas[D]. Jinan:Shandong University, 2019:8-12.
• [15]薄恩多,高军龙,武超,等.燃煤机组湿法脱硫后饱和湿烟气余热利用技术[J].节能, 2023, 42(11):81-85.BO Enduo, GAO Junlong, WU Chao, et al. Heat utilization technologies of saturated wet flue gas after wet desulfurization in coal-fired power plants[J]. Energy Conservation, 2023, 42(11):81-85.
• [16] SHAMSIS, NEGASH A, CHO G, et al. Waste heat and water recovery system optimization for glue gas in thermal power plants[J]. Sustainability, 2019, 11(7):1-20.
• [17] XIONG Y, TAN H, WANG Y, et al. Pilot-scale study on water and latent heat recovery from flue gas using fluorine plastic heat exchangers[J]. Journal of Cleaner Production, 2017, 161(10):1416-1422.
• [18]伊超,滕达,宋绍伟,等.喷淋法燃煤电站烟气冷凝水回收系统应用分析[J].中国电力, 2023, 56(11):226-235.YIN Chao, TENG Da, SONG Shaowei, et al. Application analysis of flue gas condensation recovery in coal-fired power plants by spraying method[J]. Electric Power,2023, 56(11):226-235.
• [19]米大斌,郭江龙,张衡.陶瓷膜法的烟气水分及余热回收中试研究[J].中国电力, 2021, 54(4):199-206.MI Dabin, GUO Jianglong, ZHANG Heng. Pilot study of flue gas moisture and waste heat recovery based on ceramic membrane method[J]. Electric Power, 2021,54(4):199-206.
• [20] ZAJACS A, BOGDANOVICS R, BORODINECSA A.Analysis of low temperature lift heat pump application in a district heating system for flue gas condenser efficiency improvement[J]. Sustainable Cities and Society, 2020,57:102130.
• [21]白涛,靳智平.基于烟气余热回收的热泵供热系统热力学分析[J].电力学报, 2023, 38(2):117-126.BAI Tao, JIN Zhiping. Thermodynamic analysis of heat pump heating system based on flue gas waste heat recovery[J]. Journal of Electric Power, 2023, 38(2):117-126.
• [22]高昕玥,范高峰,刘爱平,等.湿法脱硫后烟气和浆液余热回收技术研究进展[J].化工进展, 2024, 43(8):4307-4319.GAO Xiyue, FAN Gaofeng, LIU Aiping, et al. Research progress on waste heat recovery technology for flue gas and slurry after wet desulphurization[J]. Chemical Industry and Engineering Progress, 2024, 43(8):4307-4319.
• [23]徐继松.燃煤电厂低品位烟气余热回收与排放物控制研究[D].南宁:广西大学, 2022:1.XU Jisong. Research on low-grade waste heat recovery and emission control of coal-fired power plant[D].Nanning:Guangxi University, 2022:1.
• [24] SUN J, FU L, ZHANG S, et al. A mathematical model with experiments of single effect absorption heat pump using LiBr-H2O[J]. Applied Thermal Engineering, 2010,30(17/18):2753-2762.
• [25] SHAHZAD M K, DING Y, XUAN Y, et al. Modelling and performance analysis of a single stage open absorption heat pump system in aspen plus using aqueous LiBr and HCOOK:a waste moist heat recovery application[J]. Proceedings of the Institution of Mechanical Engineers, Part A:Journal of Power and Energy, 2022, 236(3):538-554.
• [26] WU Z, JIANG Y, WANG Y, et al. Investigating the performance of heat exchangers in absorption heat pump systems using both numerical and experimental methods[J]. Energy Conversion and Management, 2023,278(2):116744.
• [27] WANG X, ZHANG H, CUI L, et al. Simulation study of an open compression absorption heat pump in water and heat recovery of low-temperature and high-humidity flue gas[J]. Energy Conversion and Management, 2022,269(10):116180
• [28]贾晨辉,刘培,李政.燃煤机组烟气水分回收系统设计与运行最优化[J].动力工程学报, 2023, 43(2):151-157.JIA Chenhui, LIU Pei, LI Zheng. Design and operation optimization of water recovery system from flue gas for coal-fired power plants[J]. Journal of Chinese Society of Power Engineering, 2023, 43(2):151-157.
• [29] THIYAGU S, NAVEEN T K, SIDDHARTHAN B, et al.Numerical investigation and performance enhancement of 210 MW boiler by utilization of waste heat in flue gas[J]. Materials Today:Proceedings, 2020, 33(1):756-762.
• [30] WANG Y, CHEN Y, WANG K, et al. Performance evaluation and thermal analysis of heat pipe flue gas waste heat utilization system[J]. Energy Reports,2022(8):210-217.
• [31]时国华,林俊华,田志敏,等.降低热网回水温度的钢厂余热回收供暖分析[J].科学技术与工程, 2021,21(35):15035-15042.SHI Guohua, LIN Junhua, TIAN Zhimin, et al. Analysis of waste heat recovery from steel plant for heating by reducing return water temperature[J]. Science Technology and Engineering, 2021, 21(35):15035-15042.
• [32] JUN Y M, JUN X L. Numerical investigation of water and heat recovery from flue gas by using nanoporous ceramic membrane tubes[J]. International Journal of Thermal Sciences, 2023, 192(10):108425.
• [33] TENG D, LU G, CHEN O, et al. Research on thermodynamic characteristics of the saturated flue gas waste heat recovery to reduce turbine extraction steam[J]. ACS Omega, 2023, 8(48):46205-46217.