Research on Operation Optimization of Energy Cascade Utilization Heating Based on Exergy Analysis

doi:10.11930/j.issn.1004-9649.202304078

Abstract

Abstract: In order to realize the optimization of energy cascade heating unit, An analysis-based evaluation model of heating economy is established, Got the whole plant efficiency, the heating index, And power generation coal consumption and heating coal consumption based on analysis; The simulation model built based on the thermal system integration and optimization software, This paper studies the operation economy of high back pressure heating unit, high and low side steam extraction-back pressure heating, middle exhaust steam heating and middle exhaust steam extraction-back pressure heating, The results show that the best efficiency, index, power generation coal consumption and heating coal consumption index of middle exhaust steam-back compressor are better than other heating modes; Based on the analysis method, the heating coal consumption can be the economy of different energy heating modes. The research results provide support for the operation optimization of energy cascade using heating transformer condition.

Key words: cogeneration, energy cascade utilization, high back pressure, specific consumption analysis, operation optimization

HOU Jianjun, FU Xiliang, LI Ransheng, LIU Guixi, SUN Yanping, SUN Li, LIANG Zhanwei. Research on Operation Optimization of Energy Cascade Utilization Heating Based on Exergy Analysis[J]. Electric Power, 2023, 56(8): 230-240.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.202304078

https://www.electricpower.com.cn/EN/Y2023/V56/I8/230

References

[1] 陈家伦, 蒋欢春, 卞韶帅, 等. 660 MW梯级供热机组耦合电锅炉运行优化[J]. 中国电力, 2022, 55(5): 189–195
CHEN Jialun, JIANG Huanchun, BIAN Shaoshuai, et al. Study on operating optimization of 660 MW multi-stage heating unit combined with electric boiler[J]. Electric Power, 2022, 55(5): 189–195
[2] LI Y, MI P Y, LI W T, et al. Full operating conditions optimization study of new co-generation heating system based on waste heat utilization of exhausted steam[J]. Energy Conversion and Management, 2018, 155: 91–99.
[3] KOCH K, ALT B, GADERER M. Dynamic modeling of a decarbonized district heating system with CHP plants in electricity-based mode of operation[J]. Energies, 2020, 13(16): 4134.
[4] 苏鹏, 王文君, 杨光, 等. 提升火电机组灵活性改造技术方案研究[J]. 中国电力, 2018, 51(5): 87–94
SU Peng, WANG Wenjun, YANG Guang, et al. Research on the technology to improve the flexibility of thermal power plants[J]. Electric Power, 2018, 51(5): 87–94
[5] 张钧泰, 刘明, 种道彤, 等. 集成蒸汽喷射器的热电解耦系统全工况性能分析[J]. 动力工程学报, 2021, 41(8): 692–699
ZHANG Juntai, LIU Ming, CHONG Daotong, et al. Performance analysis of a heat-power decoupling system integrated with steam ejectors in the full condition Rang[J]. Journal of Chinese Society of Power Engineering, 2021, 41(8): 692–699
[6] 甘益明, 王昱乾, 黄畅, 等. “双碳”目标下供热机组深度调峰与深度节能技术发展路径[J]. 热力发电, 2022, 51(8): 1–10
GAN Yiming, WANG Yuqian, HUANG Chang, et al. Development path of deep peak-shaving and deep energy conservation technology for cogeneration units with “dual carbon” target[J]. Thermal Power Generation, 2022, 51(8): 1–10
[7] 齐结红, 潘宇, 钱虹, 等. 自动发电控制优先的厂级多机组供热经济优化调度研究[J]. 热力发电, 2022, 51(9): 63–71
QI Jiehong, PAN Yu, QIAN Hong, et al. AGC priority plant level multi-unit heating economic optimal dispatching[J]. Thermal Power Generation, 2022, 51(9): 63–71
[8] 刘铸, 宋建成, 马素霞, 等. 2×300 MW热电联产机组灵活性供热控制策略研发[J]. 动力工程学报, 2022, 42(4): 387–392
LIU Zhu, SONG Jiancheng, MA Suxia, et al. Research and development of flexible heating control strategy for 2×300 MW cogeneration units[J]. Journal of Chinese Society of Power Engineering, 2022, 42(4): 387–392
[9] 朱旭东, 马红和, 韩洋. 300 MW亚临界机组的热电解耦模式对比[J]. 洁净煤技术, 2022, 28(7): 141–148
ZHU Xudong, MA Honghe, HAN Yang. Comparison of thermo-electric decoupling modes of 300 MW subcritical unit[J]. Clean Coal Technology, 2022, 28(7): 141–148
[10] 李健, 丁维栋, 杨志平, 等. 330 MW高背压热电联产机组运行优化分析[J]. 华北电力大学学报(自然科学版), 2023, 50(4): 101–111
LI Jian, DING Weidong, YANG Zhiping, et al. Operation and optimization analysis of 330 MW high back pressure cogeneration unit[J]. Journal of North China Electric Power University (Natural Science Edition), 2023, 50(4): 101–111
[11] 乔加飞, 梁占伟, 张磊, 等. 基于热能深度梯级利用的耦合供热变工况研究[J]. 中国电力, 2022, 55(9): 204–212
QIAO Jiafei, LIANG Zhanwei, ZHANG Lei, et al. Study on variable working conditions of coupled heating based on deep cascade utilization of thermal energy[J]. Electric Power, 2022, 55(9): 204–212
[12] 梁占伟, 张磊, 徐亚涛, 等. 双机联调抽汽-高背压联合供热㶲分析与优化[J]. 动力工程学报, 2020, 40(3): 247–255
LIANG Zhanwei, ZHANG Lei, XU Yatao, et al. Exergy analysis and optimization of steam extraction-high back pressure combined heating for dual cogeneration units[J]. Journal of Chinese Society of Power Engineering, 2020, 40(3): 247–255
[13] 宋浩, 陈晓利, 高继录, 等. 多供热机组多模式深度调峰协同运行技术路线研究[J]. 汽轮机技术, 2021, 63(6): 448–450, 457
SONG Hao, CHEN Xiaoli, GAO Jilu, et al. Study on the technical route of multi-mode deep peak-shaving cooperative operation of multi-heating units[J]. Turbine Technology, 2021, 63(6): 448–450, 457
[14] 石慧, 王洋, 马汀山, 等. 多机组、多模式的热电联产厂级供热优化[J]. 热力发电, 2022, 51(1): 123–129
SHI Hui, WANG Yang, MA Tingshan, et al. Plant-level heating optimization for multi-unit and multi-mode cogeneration[J]. Thermal Power Generation, 2022, 51(1): 123–129
[15] 王洋, 杨利, 田德中, 等. 多机组、多元化供热方式下厂级热电负荷运行优化策略研究[J]. 汽轮机技术, 2022, 64(5): 364–370, 373
WANG Yang, YANG Li, TIAN Dezhong, et al. Study on optimization strategy of plant-level thermoelectric load operation under multi-unit and diversified heating mode[J]. Turbine Technology, 2022, 64(5): 364–370, 373
[16] 严晓生, 吴振华, 殷戈, 等. 供热机组供热域及负荷分配方式的优化研究[J]. 中国测试, 2022, 48(2): 148–153
YAN Xiaosheng, WU Zhenhua, YIN Ge, et al. Research on optimization of heating region and load distribution mode of heating units[J]. China Measurement & Test, 2022, 48(2): 148–153
[17] 王志敏, 黄骞, 王可轩, 等. 宽负荷下供热机组煤耗实时寻优分析[J]. 中国电机工程学报, 2023, 43(4): 1347–1359
WANG Zhimin, HUANG Qian, WANG Kexuan, et al. Real-time optimization analysis of coal consumption of heating unit under wide load[J]. Proceedings of the CSEE, 2023, 43(4): 1347–1359
[18] MA L Q, GE Z H, ZHANG F X, et al. A novel super high back pressure cascade heating scheme with multiple large-scale turbine units[J]. Energy, 2020, 201: 117469.
[19] 梁占伟, 张磊, 徐亚涛, 等. 高背压供热机组供热温度特性与㶲分析[J]. 热力发电, 2020, 49(1): 17–25
LIANG Zhanwei, ZHANG Lei, XU Yatao, et al. Heating temperature characteristics and exergy analysis for high back pressure heating unit[J]. Thermal Power Generation, 2020, 49(1): 17–25
[20] 和学豪, 赵梓良, 郑磊, 等. 变工况下热泵供热及膨胀机供热的热力性能对比分析[J]. 太阳能学报, 2023, 44(2): 334–343
HE Xuehao, ZHAO Ziliang, ZHENG Lei, et al. Comparative analysis of thermal performance of heat pump heating and expander heating under variable working conditions[J]. Acta Energiae Solaris Sinica, 2023, 44(2): 334–343
[21] 王文焕, 李志炜, 李秋白, 等. 基于㶲分析法的供热机组变工况特性研究[J]. 热力发电, 2022, 51(1): 115–122
WANG Wenhuan, LI Zhiwei, LI Qiubai, et al. Study on off-design characteristics of heating units based on exergy analysis method[J]. Thermal Power Generation, 2022, 51(1): 115–122
[22] SONG Z P. Total energy system analysis of heating[J]. Energy, 2000, 25(9): 807–822.
[23] 杨凯旋, 熊涌盛, 刘明, 等. 抽汽-高背压-热泵耦合供热系统运行优化[J]. 工程热物理学报, 2023, 44(6): 1459–1464
YANG Kaixuan, XIONG Yongsheng, LIU Ming, et al. Operation optimization of heat and power cogeneration system coupled with extraction unit, high back pressure unit and heat pump[J]. Journal of Engineering Thermophysics, 2023, 44(6): 1459–1464
[24] 周家辉, 邓庚庚, 汪茹康, 等. 配置吸收式热泵的余压梯级利用供热系统优化设计[J]. 动力工程学报, 2023, 43(2): 165–173
ZHOU Jiahui, DENG Genggeng, WANG Rukang, et al. Optimal design of residual pressure cascade utilization heating system with absorption heat pump[J]. Journal of Chinese Society of Power Engineering, 2023, 43(2): 165–173
[25] 胡慧, 曹越, 王广龙, 等. 600 MW双机热电联供系统智能优化方法研究[J]. 热能动力工程, 2022, 37(10): 41–50
HU Hui, CAO Yue, WANG Guanglong, et al. Research on intelligent optimization method of 600 MW dual-machine cogeneration system[J]. Journal of Engineering for Thermal Energy and Power, 2022, 37(10): 41–50