燃煤机组集成储热系统的热力学性能研究

杨海生; 吴瑞涛; 李路江; 唐广通; 苗林; 刘明

doi:10.19805/j.cnki.jcspe.2025.240141

欢迎来到能源电力期刊网！

English Version 读者登录期刊登录

您当前的位置：

首页 >

文章列表页 >

燃煤机组集成储热系统的热力学性能研究

动力设备与系统 | 更新时间：2025-10-16

- 燃煤机组集成储热系统的热力学性能研究
- Thermodynamic Performance Study on Coal-fired Power Plant Integrated with Molten Salt Thermal Energy Storage System
- 动力工程学报 2025年45卷第5期页码：645-653
- 作者机构：
  
  1. 国网河北能源技术服务有限公司,河北,石家庄,050021
  2. 河北省火力发电节能环保技术创新中心,河北,石家庄,050021
  3. 西安交通大学动力工程多相流国家重点实验室,陕西,西安,710049
- 作者简介：
  
  [ "杨海生(1974—),男,河北井陉人,正高级工程师,学士,研究方向为火电机组灵活性及节能分析,E-mail:909372131@qq.com" ]
- 基金信息：
  
  国网河北省电力有限公司科技项目“新型灵活保效热电联供改造与运行优化技术研究”(TSS2022-02)
- DOI：10.19805/j.cnki.jcspe.2025.240141
  中图分类号： TM621
- 网络出版：2025-05-19，
  
  纸质出版：2025
- 稿件说明：
移动端阅览
杨海生,吴瑞涛,李路江,唐广通,苗林,刘明. 燃煤机组集成储热系统的热力学性能研究动力工程学报, 2025, 45(5): 645-653 https://doi.

org/10.19805/j.cnki.jcspe.2025.240141
杨海生,吴瑞涛,李路江,唐广通,苗林,刘明. 燃煤机组集成储热系统的热力学性能研究动力工程学报, 2025, 45(5): 645-653 https://doi. DOI： 10.19805/j.cnki.jcspe.2025.240141.

org/10.19805/j.cnki.jcspe.2025.240141 DOI：

摘要

为了提高利用过热蒸汽加热熔盐进行储热的系统能效

建立了集成三罐熔盐储热系统的燃煤机组系统构型

并在典型储热-放热工况下对燃煤机组的灵活性提升潜力和集成系统的热力学性能进行分析。结果表明:在30% THA工况下进行储热时

受汽轮机低压缸的最低蒸汽通流量限制

燃煤机组的输出功率最高可降低81.60 MW

占机组额定负荷的12.36%;而在50% THA工况下放热时

燃煤机组的输出功率最高可达52.45 MW

占机组额定负荷的7.95%;集成系统的等效循环效率受放热基准工况的影响

在50% THA工况下放热时的等效循环效率最大

可达75.35%

而在100% THA工况放热时的等效循环效率最小

为59.43%。

Abstract

To enhance the energy efficiency of the thermal energy storage system using superheated steam to heat molten salt

a coal-fired unit system configuration integrating the three-tank molten salt thermal energy storage system was proposed. The flexibility improvement potential of coal-fired power plant and the thermodynamic performance of the integrated system were analyzed under typical charging and discharging conditions. Results show that under the condition of 30% THA for the charging process

the maximum output power of coal-fired power plant can be reduced by 81.60 MW

accounting for 12.36% of the rated load

due to the limitation of the minimum steam flow rate through the low-pressure turbine. Under the condition of 50% THA for the discharging process

the maximum output power of coal-fired power plant can be increased to 52.45 MW

accounting for 7.95% of the rated load. The equivalent round-trip efficiency of the integrated system is influenced by the discharging condition. The maximum equivalent round-trip efficiency is 75.35% at the discharging condition of 50% THA

while the minimum equivalent round-trip efficiency is achieved at 59.43% at the discharging condition of 100% THA.

关键词

Keywords

references

孙月巧, 郑宏飞, 孔慧. 碳中和背景下煤电转型关键技术研究与展望[J]. 动力工程学报, 2022, 42(11): 1013-1023. SUN Yueqiao, ZHENG Hongfei, KONG Hui. Key technologies and prospects of coal power transformation under carbon neutrality background[J]. Journal of Chinese Society of Power Engineering, 2022, 42(11): 1013-1023.

中国电力企业联合会. 中国电力行业年度发展报告2023[R]. 北京: 中国电力企业联合会, 2023.

黄畅, 张攀, 王卫良, 等. 燃煤发电产业升级支撑我国节能减排与碳中和国家战略[J]. 热力发电, 2021, 50(4): 1-6. HUANG Chang, ZHANG Pan, WANG Weiliang, et al. The upgradation of coal-fired power generation industry supports China's energy conservation, emission reduction and carbon neutrality[J]. Thermal Power Generation, 2021, 50(4): 1-6.

包哲, 李薇, 张潇方, 等. 计及"源荷"双侧多重不确定性的虚拟电厂运行优化研究[J]. 动力工程学报, 2023, 43(12): 1665-1674. BAO Zhe, LI Wei, ZHANG Xiaofang, et al. Study on operational optimization of virtual power plant considering "source and load" uncertainties[J]. Journal of Chinese Society of Power Engineering, 2023, 43(12): 1665-1674.

SUN Yang, WANG Ligang, XU Cheng, et al. Enhancing the operational flexibility of thermal power plants by coupling high-temperature power-to-gas[J]. Applied Energy, 2020, 263: 114608.

YIN Junjie, LIU Ming, ZHAO Yongliang, et al. Dynamic performance and control strategy modification for coal-fired power unit under coal quality variation[J]. Energy, 2021, 223: 120077.

SUN Yang, XU Cheng, XIN Tuantuan, et al. A comprehensive analysis of a thermal energy storage concept based on low-rank coal pre-drying for reducing the minimum load of coal-fired power plants[J]. Applied Thermal Engineering, 2019, 156: 77-90.

周熙宏, 毕凌峰, 杨浩昱, 等. 燃煤机组锅炉深度调峰性能计算分析[J]. 动力工程学报, 2021, 41(10): 809-817. ZHOU Xihong, BI Lingfeng, YANG Haoyu, et al. Calculation and analysis of depth peak regulation performance of a coal-fired power plant[J]. Journal of Chinese Society of Power Engineering, 2021, 41(10): 809-817.

吕为智, 赵旭, 何翔, 等. 燃煤机组灵活性改造后燃烧优化试验研究[J]. 动力工程学报, 2023, 43(11): 1406-1412. LV Weizhi, ZHAO Xu, HE Xiang, et al. Experimental study on combustion optimization of coal-fired unit after flexible modification[J]. Journal of Chinese Society of Power Engineering, 2023, 43(11): 1406-1412.

WANG Baigong, MA Huan, REN Shaojun, et al. Effects of integration mode of the molten salt heat storage system and its hot storage temperature on the flexibility of a subcritical coal-fired power plant[J]. Journal of Energy Storage, 2023, 58: 106410.

张红昌, 薛小军, 徐钢, 等. 热电联产机组热电解耦改造方案的调峰特性及能耗分析[J]. 动力工程学报, 2023, 43(10): 1382-1390. ZHANG Hongchang, XUE Xiaojun, XU Gang, et al. Peak shaving characteristics and energy consumption analysis of the thermoelectric-decoupling retrofit scheme for cogeneration units[J]. Journal of Chinese Society of Power Engineering, 2023, 43(10): 1382-1390.

付立, 樊雪, 侯宏娟, 等. 槽式太阳能辅助燃煤发电系统热性能研究[J]. 动力工程学报, 2016, 36(8): 645-650. FU Li, FAN Xue, HOU Hongjuan, et al. Thermal performance analysis of a coal-fired power system aided by parabolic trough solar collectors[J]. Journal of Chinese Society of Power Engineering, 2016, 36(8): 645-650.

毛翠骥, 余雄江, 徐进良, 等. 耦合熔融盐储热的火电机组灵活调峰系统关键技术研究进展[J]. 热力发电, 2023, 52(2): 10-22. MAO Cuiji, YU Xiongjiang, XU Jinliang, et al. Research progress on key technologies of flexible peak shaving system of thermal power unit coupled with molten salt heat storage[J]. Thermal Power Generation, 2023, 52(2): 10-22.

庞力平, 张世刚, 段立强. 高温熔盐储能提高二次再热机组灵活性研究[J]. 中国电机工程学报, 2021, 41(8): 2682-2691. PANG Liping, ZHANG Shigang, DUAN Liqiang. Flexibility improvement study on the double reheat power generation unit with a high temperature molten salt thermal energy storage[J]. Proceedings of the CSEE, 2021, 41(8): 2682-2691.

RICHTER M, OELJEKLAUS G, GRNER K. Improving the load flexibility of coal-fired power plants by the integration of a thermal energy storage[J]. Applied Energy, 2019, 236: 607-621.

TROJAN M, TALER D, DZIERWA P, et al. The use of pressure hot water storage tanks to improve the energy flexibility of the steam power unit[J]. Energy, 2019, 173: 926-936.

ZHANG Kezhen, LIU Ming, ZHAO Yongliang, et al. Design and performance evaluation of a new thermal energy storage system integrated within a coal-fired power plant[J]. Journal of Energy Storage, 2022, 50: 104335.

ZHANG Kezhen, LIU Ming, ZHAO Yongliang, et al. Thermo-economic optimization of the thermal energy storage system extracting heat from the reheat steam for coal-fired power plants[J]. Applied Thermal Engineering, 2022, 215: 119008.

CAO Ruifeng, LU Yue, YU Daren, et al. A novel approach to improving load flexibility of coal-fired power plant by integrating high temperature thermal energy storage through additional thermodynamic cycle[J]. Applied Thermal Engineering, 2020, 173: 115225.

MIAO Lin, LIU Ming, ZHANG Kezhen, et al. Energy, exergy, and economic analyses on coal-fired power plants integrated with the power-to-heat thermal energy storage system[J]. Energy, 2023, 284: 129236.

石红晖, 张攀, 曹蓉秀, 等. 小流量条件下低压缸末级流动特性研究[J]. 动力工程学报, 2022, 42(2): 109-114. SHI Honghui, ZHANG Pan, CAO Rongxiu, et al. Investigations on the flow characteristics of the last stage of the low-pressure cylinder under small flow rate conditions[J]. Journal of Chinese Society of Power Engineering, 2022, 42(2): 109-114.

朱良君, 张海珍, 王世朋, 等. 基于EBSILON的燃气-蒸汽联合循环系统高冷负荷下供能特性分析[J]. 热力发电, 2021, 50(2): 35-42. ZHU Liangjun, ZHANG Haizhen, WANG Shipeng, et al. Energy supply characteristics of gas-steam combined cycle system at high cooling load based on EBSILON[J]. Thermal Power Generation, 2021, 50(2): 35-42.

REN Nan, WU Yuting, MA Chongfang, et al. Preparation and thermal properties of quaternary mixed nitrate with low melting point[J]. Solar Energy Materials and Solar Cells, 2014, 127: 6-13.

鹿院卫, 李勇, 吴玉庭, 等. 低熔点混合熔融盐腐蚀性研究[J]. 太阳能学报, 2018, 39(3): 692-696. LU Yuanwei, LI Yong, WU Yuting, et al. Research on corrosive property of low molting point mixed molten salt[J]. Acta Energiae Solaris Sinica, 2018, 39(3): 692-696.

马丽娜, 吴玉庭, 张灿灿, 等. 奥氏体不锈钢在四元硝酸盐中的动态腐蚀行为研究[J]. 太阳能学报, 2023, 44(3): 497-503. MA Li'na, WU Yuting, ZHANG Cancan, et al. Dynamic corrosion behaviors of autennitic stainless steel in quaternary nitrate-niotrite molten salt[J]. Acta Energiae Solaris Sinica, 2023, 44(3): 497-503.

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

燃煤机组集成电制热熔盐储热系统的热力学性能分析