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以600 MW亚临界机组煤-氨混合燃烧锅炉为研究对象，采集某电厂燃煤混燃现场实际工况的真实有效数据，利用通用建模系统开发平台(GenSystem)，建立锅炉掺氨系统的仿真模型，并对其燃烧动态特性仿真曲线进行分析。首先，根据锅炉掺氨系统的主要工作部分：液氨供氨区、液氨汽化区、锅炉燃烧区，通过各区域工作原理绘制工艺流程图；其次，分析不同温度场氨气燃烧特性提取主要特征，采用Flynn-Wall-Ozawa法计算活化能优化组合煤粉模型组合，联立两种燃料之间的数学关系优化掺氨燃烧比例，构建出煤掺氨混合燃烧数学模型；最后在正常工况下通过主要设备及参数(如液氨汽化器的主要参数压力、流量、液位等)，并结合系统关键的管道调节阀门在通用建模系统开发平台(GenSystem)构建锅炉掺氨系统的仿真模型并进行曲线实时在线观测。仿真结果表明：在掺氨比例为10%、燃烧温度950℃时，CO2排放量降低约20%，单位发电煤耗下降7.7%,NOx排放可控在行业标准内，验证该模型在工程应用中的可行性与节能效果。
Abstract：The actual and effective data of 600 MW sub-critical unit were collected, and the model of boiler ammonia mixing system was established with the general modeling system, and its combustion dynamic characteristics were analyzed. Firstly, according to the main working parts of the boiler ammonia mixing system: liquid ammonia discharge area, liquid ammonia vaporization area and boiler combustion area, the process flow chart is drawn through the working principle of each area. Secondly, the main characteristics of ammonia combustion characteristics in different temperature fields were analyzed. The Flynn-Wall-Ozawa method was used to calculate the combination of activation energy optimization and pulverized coal model combination, and the mathematical relationship between the two fuels was combined to optimize the ammoniadoped combustion ratio, and the mathematical model of ammonia-doped mixed combustion was constructed.Finally, through the main equipment and parameters, such as the pressure, flow rate and level of liquid ammonia gasifier, and combined with the main key pipeline regulation valves, the simulation model of boiler ammonia mixing system was constructed in the general modeling system(GenSystem) and the curve was observed online in real time. Simulation results show that with a 10% ammonia blending ratio and a combustion temperature of 950 ℃, CO2 emissions are reduced by approximately 20%, the unit coal consumption for power generation decreases by 7.7%, and NOx emissions are controllable within industry standards, verifying the model's feasibility and energy-saving effect in engineering applications.
[1]罗凡,蒋岳峰,甘蓉,等.超临界二氧化碳流量测量方法研究[J].中国测试, 2024, 50(1):62-68.LUO F, JIANG Y F, GAN R, et al. Research on supercritical carbon dioxide flow method[J]. China Measurement&Test,2024, 50(1):62-68.
[2]祝晓轶,臧金亮.浅论计量对我国实现“双碳战略”目标的支撑作用[J].中国测试, 2022, 48(S2):8-13.ZHU X Y, ZANG J L. A brief discussion on the supporting role of metrology in realizing the goal of"dual carbon Strategy"in China[J]. China Measurement&Test, 2022,48(S2):8-13.
[3]XIAO L, LIU H L, GONG X P, et al. Progress in research on coalbed methane purification technology against the background of carbon peak and carbon neutrality[J].Processes, 2024, 12(8):1561.
[4]陈琦,李红伟,周海林.考虑风电消纳的电-热综合能源系统经济运行研究[J].中国测试, 2022, 48(1):116-121.CHEN Q, LI H W, ZHOU H L. Study on economic operation of integrated electric-thermal Energy system considering wind power consumption[J]. China Measurement&Test, 2022,48(1):116-121.
[5]吕强,王儒儒,李长兴,等.燃煤锅炉掺氨燃烧研究进展[J].节能技术, 2023, 41(4):324-331.LÜQ, WANG R R, LI C X, et al. Research progress of ammonium-doped combustion in coal-fired boilers[J]. Energy Saving Technology, 2023, 41(4):324-331.
[6]王宁泽,李芳芹,潘卫国,等.燃煤锅炉氨煤混燃技术的研究进展[J].化工环保, 2024, 44(3):345-352.WANG N Z, LI F Q, PAN W G, et al. Research progress of ammonia-coal mixed combustion technology in coal-fired boilers[J]. Chemical Environmental Protection, 2024, 44(3):345-352.
[7]马宁,尚勇,尤默,等.应用集成极限学习机的电站SCR脱硝系统建模与分析[J].中国测试, 2024, 50(1):185-192.MA N, SHANG Y, YOU M, et al. Modeling and analysis of power station SCR Denitration system with integrated Extreme Learning Machine[J]. China Measurement&Testing Technology, 2024, 50(1):185-192.
[8]吴英主,张永生.朝鲜无烟煤燃烧特性随升温速率的变化及动力学研究[J].煤炭转化, 2022, 45(6):20-28.WU Y Z, ZHANG Y S. Study on combustion characteristics and kinetics of North Korean anthracite with heating rate[J].Coal Conversion, 2022, 45(6):20-28.
[9]曹文亮,李晓金,侯波,等. 630 MW煤粉锅炉协同处理污泥对燃烧稳定性的影响[J].洁净煤技术, 2023, 29(S2):245-253.CAO W L, LI X J, HOU B, et al. Effect of cooperative treatment of sludge in 630 MW pulverized coal boiler on combustion stability[J]. Clean Coal Technology, 2023,29(S2):245-253.
[10]成汭珅,魏星,周凌宇,等.煤泥和原煤的燃烧动力学特性实验研究[J].热力发电, 2021, 50(2):55-61.CHENG R S, WEI X, ZHOU L Y, et al. Experimental study on combustion dynamic characteristics of coal slime and raw coal[J]. Thermal Power Generation, 2021, 50(2):55-61.
[11]梁俊鹏,张高航,李凤婷,等.计及氢储能-制氨-碳捕集的综合能源系统低碳优化调度[J/OL].电力自动化设备, 1-12[2024-09-27].LIANG J P, ZHANG G H, LI F T, et al. Low-carbon optimal scheduling of integrated energy system with hydrogen storage,ammonia production and carbon capture[J/OL]. Electric Power Automation Equipment, 1-12[2024-09-27].
[12]林建功,张孝禹,惠吉成,等.煤矸石与汽化飞灰的热重-质谱混燃机理[J].煤炭学报, 2024, 49(11):4634-4645.LIN J G, ZHANG X Y, HUI J C, et al. Thermogravimetric mass spectrometry co-combustion mechanism of coal gangue and gasification fly ash[J]. Journal of China Coal Society,2024, 49(11):4634-4645.
[13]苏嘉明,李先春,李艳鹰,等.稀薄氨气的燃烧特性及动力学研究[J].可再生能源, 2021, 39(1):13-18.SU J M, LI X C, LI Y Y, et al. Study on combustion characteristics and kinetics of lean ammonia[J]. Renewable Energy Sources, 2021, 39(1):13-18.
[14]凌菁,万江华,胡甜甜.基于GS-CV SVM的煤炭掺杂率软测量方法[J].中国测试, 2022, 48(8):34-39.LING J, WAN J H, HU T T. Soft measurement method of coal doping rate based on GS-CV SVM[J]. China Measurement&Test, 2022, 48(8):34-39.
[15]张鹤严. 660MW煤粉炉混氨燃烧特性研究[D].东北电力大学, 2024.ZHANG H Y. Study on combustion characteristics of mixed ammonia in 660MW pulverized coal Furnace[D]. Northeast Electric Power University, 2024.
基本信息:
DOI：10.11857/j.issn.1674-5124.2025010024
中图分类号:TM621
引用信息:
[1]崔立明,田乐乐,施梁,等.600 MW火电机组煤-氨混合燃烧特性建模与仿真[J].中国测试,2026,52(05):164-172.DOI:10.11857/j.issn.1674-5124.2025010024.
基金信息:
国家能源集团科技项目(GJNY-2023-9)
2025-01-09
2025-02-26
2026-05-28
2026-05-28