邓佳,许朋江,郑郝,刘雨恩,马汀山

• 1:西安热工研究院有限公司
• 2:中国华能集团有限公司

摘要(Abstract)：

针对煤电机组低品位余热能质浪费问题，以某350MW机组为研究对象，采用Ebsilon平台建模模拟研究不同的低品位余热能质深度回收方案，计算“有机朗肯循环（organic Rankinecycle,ORC）”和“加热器”2种方案对应机组运行数据，分析能耗特性、收益特性和差异性等，得到了余热能质深度回收的机理和优化方案。结果表明：2种方案下机组能耗特性均有明显提升，“加热器”方案能耗更低；随着有机工质流量增加，ORC系统发电量逐渐增大，ORC系统热电效率先逐渐增大后趋于平缓并有下降趋势，变化范围为6.94%～7.75%，有机工质流量对ORC系统循环效率影响较小；2种方案技术经济均可行，“ORC”方案可以为电厂带来直接电能收益，“加热器”方案经济性略好。

关键词(KeyWords)： 煤电机组;余热能质;深度回收;ORC;优化

Abstract:

Keywords:

基金项目(Foundation): 西安西热节能技术有限公司科技项目（GB-24-TZK11）~~

作者(Author): 邓佳,许朋江,郑郝,刘雨恩,马汀山

DOI: 10.19666/j.rlfd.202405100

参考文献(References)：

• [1]葛世荣,樊静丽,刘淑琴,等.低碳化现代煤基能源技术体系及开发战略[J].煤炭学报, 2024, 49(1):203-223.GE Shirong, FAN Jingli, LIU Shuqin, et al. Low carbon modern coal-based energy technology system and development strategy[J]. Journal of China Coal Society,2024, 49(1):203-223.
• [2]李政,陈思源,董文娟,等.碳约束条件下电力行业低碳转型路径研究[J].中国电机工程学报, 2021, 41(12):3987-4000.LI Zheng, CHEN Siyuan, DONG Wenjuan, et al. Low carbon transition pathway of power sector under carbon emission constraints[J]. Proceedings of the CSEE, 2021,41(12):3987-4000.
• [3]孙哲.“双碳”背景下火电厂“三改联动”现状及实施建议[J].能源与节能, 2023(7):71-74.SUN Zhe. Current situation and implementation suggestions of “linkage of three reforms” in thermal power plants under background of “double carbon”[J].Energy and Energy Conservation, 2023(7):71-74.
• [4]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.
• [5]江川,孔茜,焦倩,等.基于3060目标的陕西省火电行业节能减排路径与潜力研究[J].环境科学与管理,2023, 48(7):16-20.JIANG Chuan, KONG Qian, JIAO Qian, et al. Energy saving and emission reduction path and potential analysis of thermal power industry in Shaanxi province based on3060 target[J]. Environmental Science and Management,2023, 48(7):16-20.
• [6]徐顺智,赵瑞彤,王孝全,等.燃煤发电行业低碳化发展路径分析[J].洁净煤技术, 2023, 29(12):83-94.XU Shunzhi, ZHAO Ruitong, WANG Xiaoquan, et al.Analysis on low-carbon development path of coal-fired power generation industry[J]. Clean Coal Technology,2023, 29(12):83-94.
• [7]吴迪,康俊杰,王可珂,等.我国典型5省煤电发展现状与转型优化潜力研究[J].中国煤炭, 2023, 49(5):18-29.WU Di, KANG Junjie, WANG Keke, et al. Research on the development status and transformation optimization potential of coal power in five typical provinces of China[J]. China Coal, 2023, 49(5):18-29.
• [8]王华霆,陈衡,徐钢,等.煤电升级改造背景下烟气余热利用节能效益对比评估[J].发电技术, 2024, 45(1):90-98.WANG Huating, CHEN Heng, XU Gang, et al.Comparative evaluation of energy-saving benefits of flue gas waste heat utilization under the background of coal power upgrading[J]. Power Generation Technology,2024, 45(1):90-98.
• [9]牟春华,王一坤,白文刚,等.超低排放改造后烟气余热利用设备存在问题及防治措施[J].热力发电, 2020,49(4):46-50.MU Chunhua, WANG Yikun, BAI Wengang, et al.Existing problems and control measures of flue gas waste heat utilization equipment after ultra-low emission modification[J]. Thermal Power Generation, 2020, 49(4):46-50.
• [10]许宏宇,许诚.燃用低阶煤电站烟气余热利用方式热经济性比较[J].热力发电, 2020, 49(2):17-23.XU Hongyu, XU Cheng. Comparison of thermal economy of waste heat utilization approaches of low-rank coal-fired power plant[J]. Thermal Power Generation, 2020, 49(2):17-23.
• [11]王林,杨博,高景辉,等.蒸汽-烟气余热协同回收联合利用系统应用研究[J].热力发电, 2021, 50(4):67-71.WANG Lin, YANG Bo, GAO Jinghui, et al. Application of steam-flue gas waste heat collaborative recovery combined utilization system[J]. Thermal Power Generation, 2021, 50(4):67-71.
• [12]霍立伟.热电联产机组冷端余热利用及热经济性研究[D].包头:内蒙古科技大学, 2022:1.HUO Liwei. Research on utilization and thermal economy of cold end waste heat and power units[D].Baotou:Inner Mongolia University of Science and Technology, 2022:1.
• [13]邹道安,光旭.大型火电厂余热深度利用技术分析研究[J].电力勘测设计, 2023(12):55-60.ZOU Daoan, GUANG Xu. Research on waste heat utilization in large thermal power plants[J]. Electric Power Survey&Design, 2023(12):55-60.
• [14]贾丕建,孙立梅,邢学荣,等.热电厂循环水余热利用和节能减排效益分析[J].能源研究与利用, 2020(2):46-50.CAO Pijian, SUN Limei, XING Xuerong, et al. Analysis of waste heat utilization and energy-saving and emission reduction benefits of circulating water in thermal power plants[J]. Energy Research and Utilization, 2020(2):46-50.
• [15]冯贺.清苑电厂热泵吸收循环水余热的供热系统改造[D].保定:华北电力大学, 2019:1.FENG He. Heating system transformation of heat pump absorbing circulating water waste heat of Qingyuan Power Plant[D]. Baoding:North China Electric Power University, 2019:1.
• [16]孙士恩,田亚,高新勇.热泵与低真空耦合回收循环水余热的热力性能分析[J].太阳能学报, 2018, 39(5):1309-1319.SUN Shien, TIAN Ya, GAO Xinyong. Thermodynamic analysis on coupling system of heat-pump and low-vacuum with circulating water heat recovery[J]. Acta Energiae Solaris Sinica, 2018, 39(5):1309-1319.
• [17]韩学伟.利用吸收式热泵回收电厂冷凝水余热的研究[D].哈尔滨:哈尔滨工业大学, 2013:1.HAN Xuewei. Research on the recovery of the waste heat of condensation water in power plant[D]. Harbin:Harbin Institute of Technology, 2013:1.
• [18]张赞流.超临界机组除氧器排汽系统改造及效果分析[J].重庆电力高等专科学校学报, 2023, 28(4):6-8.ZHANG Zanliu. A study on the renovation of the steam exhausting system of the deaerator of the supercritical unit and its effect analysis[J]. Journal of Chongqing Electric Power College, 2023, 28(4):6-8.
• [19]徐世明,邹兵.锅炉排污及除氧器排汽综合利用研究[J].电站辅机, 2015, 36(2):19-22.XU Shiming, ZOU Bing. Study on the comprehensive utilization of boiler blowdown and deaerator exhaust steam[J]. Power Station Auxiliary Equipment, 2015,36(2):19-22.
• [20]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.
• [21]王克.“双碳”目标下供热机组灵活性调峰热电解耦技术探讨[J].特种设备安全技术, 2023(1):8-10.WANG Ke. Discussion on flexible peak shaving thermoelectric decoupling technology for heating units under the “dual carbon” target[J]. Safety Technology of Special Equipment, 2023(1):8-10.
• [22]赵丽.火电企业绿色治理的价值创造研究—基于华能国际的案例分析[D].贵阳:贵州财经大学, 2023:1.ZHAO Li. Research on value creation of green governance in thermal power enterprises:a case study based on Huaneng International[D]. Guiyang:Guizhou University of Finance and Economics, 2023:1.
• [23]毕经纬.燃煤烟气白色烟羽定量化表征及光辐射特性研究[D].济南:山东大学, 2023:1.BI Jingwei. Study on quantitative characterization and light radiometric properties of white plume from coalfired flue gas[D]. Jinan:Shandong University, 2023:1.
• [24]李帅,李贵鹏,鲁希振. 1 000 MW二次再热机组烟气余热深度利用技术[J].洁净煤技术, 2023, 29(增刊2):352-359.LI Shuai, LI Guipeng, LU Xizhen. Deep utilization technology of flue gas residual heat for a 1 000 MW double-reheat unit[J]. Clean Coal Technology, 2023,29(Suppl.2):352-359.
• [25]王轩,陈嘉宝,舒歌群,等.基于深度强化学习的有机朗肯循环内燃机余热回收系统瞬态优化控制[J].中国电机工程学报, 2023, 43(11):4169-4177.WANG Xuan, CHEN Jiabao, SHU Gequn, et al.Transient optimal control of a transcritical organic Rankine cycle for waste heat recovery of internal combustion engine based on deep reinforcement learning[J]. Proceedings of the CSEE, 2023, 43(11):4169-4177.
• [26]穆连波,王随林,鲁军辉,等.烷烃脱氢加热炉排烟余热深度回收协同烟压控制性能分析[J].化工进展,2024, 43(6):3029-3041.MU Lianbo, WANG Suilin, LU Junhui, et al. Analysis of flue gas deep waste heat recovery with cooperative flue gas pressure control for alkane dehydrogenation heating furnace[J]. Chemical Industry and Engineering Progress,2024, 43(6):3029-3041.
• [27]税杨浩,刘强,张磊,等. 650℃超超临界1 000 MW机组回热系统的参数优化[J].工程热物理学报, 2020,41(1):89-94.SHUI Yanghao, LIU Qiang, ZHANG Lei, et al.Parametric optimization of a regenerative system for a650℃ultra-supercritical steam turbine[J]. Journal of Engineering Thermophysics, 2020, 41(1):89-94.
• [28]闫沛伟,张曼铮,肖猛,等.地热能有机朗肯循环系统控制策略研究[J].化工学报, 2023, 74(12):4810-4819.YAN Peiwei, ZHANG Manzheng, XIAO Meng, et al.Study on the control strategy of a geothermal organic Rankine cycle system[J]. CIESC Journal, 2023, 74(12):4810-4819.
• [29]林秋宇,王铎,赵云云.关键设计参数对ORC系统性能影响分析[J].汽轮机技术, 2023, 65(5):352-354.LIN Qiuyu, WANG Duo, ZHAO Yunyun. Impact analysis of key design parameters on ORC system performance[J]. Turbine Technology, 2023, 65(5):352-354.
• [30]李娜娜,陶诚,孔彦龙,等.全球地热发电现状与研究进展[J].热力发电, 2024:2-12.LI Nana, TAO Cheng, KONG Yanlong, et al. Status and research progress of geothermal power generation development and utilization[J]. Thermal Power Generation, 2024:2-12.
• [31] ZHANG X X, LI Y. A method for determining the operable ideal condensation temperature of dry and isentropic fluids used in organic Rankine cycle based on temperature-entropy(T-S)diagram[J]. Journal of Thermal Science, 2023:32(6):2144-2154.
• [32] FENG F Y, LI T Y, AN J Z, et al. Performance assessment of a novel polygeneration system based on the integration of waste plasma gasification, tire pyrolysis, gas turbine, supercritical CO2 cycle and organic Rankine cycle[J]. Journal of Thermal Science,2023:32(6):2196-2214.