Calculation method for banking fire duration of subcritical circulating fluidized bed boilers based on energy balance

刘众元; 高义斌; 刘志兵; 梁五洲; 马素霞; 魏绍青; 柳成亮

doi:10.19666/j.rlfd.202502056

English Version Reader LoginJournal Login

您当前的位置：

首页 >

文章列表页 >

Calculation method for banking fire duration of subcritical circulating fluidized bed boilers based on energy balance

更新时间：2025-11-21

- Calculation method for banking fire duration of subcritical circulating fluidized bed boilers based on energy balance
- Thermal Power Generation Issue 11, Pages: 161-168(2025)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.202502056
  CLC：
- Published：2025
- 稿件说明：
移动端阅览
刘众元, 高义斌, 刘志兵, et al. Calculation method for banking fire duration of subcritical circulating fluidized bed boilers based on energy balance[J]. Thermal Power Generation, 2025, (11): 161-168.
DOI：

刘众元, 高义斌, 刘志兵, et al. Calculation method for banking fire duration of subcritical circulating fluidized bed boilers based on energy balance[J]. Thermal Power Generation, 2025, (11): 161-168. DOI： 10.19666/j.rlfd.202502056.

摘要

压火时长作为压火调峰的核心控制参数，直接影响机组运行的安全性和经济性。然而，由于压火过程中各热力学参数的复杂耦合与动态特性，现有计算方法难以实现高效、精准计算。针对亚临界CFB锅炉压火调峰，提出一种基于能量平衡的压火时长计算方法，建立压火期间锅炉蓄热量、汽轮机利用热量与散热量的动态平衡模型，推导出床料、浇注料、金属受热面、工质及碳燃烧等关键热源的蓄放热公式，最终计算得到压火时长。以某300 MW亚临界CFB机组为例，计算值与实测值绝对误差控制在5 min内，相对误差小于10%，能够满足压火调峰工程需要。研究结果表明：蓄热方面，金属受热面蓄热对压火时长的贡献度为35%～41%、床料与浇注料的贡献度各约20%、床料中碳燃烧的贡献度为10%～15%，气体和工质蓄热的贡献度不足2%，可忽略；耗热方面，发电耗热占比最高，且随电负荷增大而增大，汽轮机克服本身转动阻力所需的热占比约20%，机组散热占比低于5%。通过提高压火初始温度、增加床料量、燃用高挥发分煤种、降低机组压火期间电负荷可显著延长压火时长。通常只有将压火期间平均电负荷降低至1%额定负荷以下，压火时长才能够大于2 h。

Abstract

关键词

Keywords

references

YAO X,YI B,YU Y,et al.Economic analysis of grid integration of variable solar and wind power with conventional power system[J].Applied Energy,2020,264:114706.

QI Y,HU W,DONG Y,et al.Optimal configuration of concentrating solar power in multienergy power systems with an improved variational autoencoder[J].Applied Energy,2020,274:115124.

XIN S W,WANG H,LI J B,et al.Discussion on the feasibility of deep peak regulation for ultrasupercritical circulating fluidized bed boiler[J].Energies,2022,15(20):7720.

舒印彪,张丽英,张运洲,等.我国电力碳达峰、碳中和路径研究[J].中国工程科学,2021,23(6):9-22.SHU Yinbiao,ZHANG Liying,ZHANG Yunzhou,et al.Carbon peak and carbon neutrality path for China’s power industry[J].Strategic Study of CAE,2021,23(6):9-22.

LIU Z Y,MA S X,PAN X F,et al.Experimental study on the load response rate under the dynamic combined combustion of PC coal and CFB coal in a CFB boiler[J].Fuel,2019,236:445-451.

于浩洋,高明明,张缦,等.循环流化床机组深度调峰性能分析与评价[J].热力发电,2020,49(5):65-72.YU Haoyang,GAO Mingming,ZHANG Man,et al.Performance analysis and evaluation of deep peakregulating for circulating fluidized bed units[J].Thermal Power Generation,2020,49(5):65-72.

HONG F,WANG R,SONG J,et al.A performance evaluation framework for deep peak shaving of the CFBboiler unit based on the DBN-LSSVM algorithm[J].Energy,2021,238:121659.

吕俊复,蒋苓,柯希玮,等.碳中和背景下循环流化床燃烧技术在中国的发展前景[J].煤炭科学技术,2023,51(1):514-522.LYU Junfu,JIANG Ling,KE Xiwei,et al.Future of circulating fluidized bed combustion technology in China for carbon neutralization[J].Coal Science and Technology,2023,51(1):514-522.

刘众元,武晓俊.循环流化床锅炉压火启动调峰技术综述[J].热能动力工程,2024,39(3):1-8.LIU Zhongyuan,WU Xiaojun.Review of banked fire and start-up peak regulation technology of circulating fluidized bed boilers[J].Journal of Engineering for Thermal Energy and Power,2024,39(3):1-8.

吕俊复,王君峰,姜孝国,等.超超临界循环流化床锅炉技术研发进展[J].中国电机工程学报,2024,44(17):6883-6899.LYU Junfu,WANG Junfeng,JIANG Xiaoguo,et al.Research and development of ultra-supercritical circulating fluidized bed boiler[J].Proceedings of the CSEE,2024,44(17):6883-6899.

佟博恒,李玉,马乐乐,等.350 MW超临界循环流化床机组压火调峰试验研究[J].热力发电,2025,54(7):82-90.TONG Boheng,LI Yu,MA Lele,et al.Experimental study on banked fire for peak regulation of supercritical circulating fluidized bed units[J].Thermal Power Generation,2025,54(7):82-90.

宋海峰,王君峰,安仲红,等.350 MW超临界循环流化床煤电机组启停调峰试验[J].热力发电,2025,54(7):63-70.SONG Haifeng,WANG Junfeng,AN Zhonghong,et al.Experimental study on start-stop peak regulation of a350 MW supercritical circulating fluidized bed coal-fired power unit[J].Thermal Power Generation,2025,54(7):63-70.

乔磊磊,王孝全,聂浩,等.循环流化床锅炉全负荷调峰特性研究[J].中国电机工程学报,2025,45(1):184-193.QIAO Leilei,WANG Xiaoquan,NIE Hao,et al.Research on peak shaving characteristics of circulating fluidized bed boilers at full load[J].Proceedings of the CSEE,2025,45(1):184-193.

申欣,赵强,乔晓磊,等.超临界CFB锅炉压火特性现场试验与数值模拟[J].煤炭学报,2022,47(7):2797-2807.SHEN Xin,ZHAO Qiang,QIAO Xiaolei,et al.Field test and numerical simulation of banked fire characteristics of supercritical CFB boiler[J].Journal of China Coal society,2022,47(7):2797-2807.

YAO Y G,JIANG L,DENG B Y,et al.Heat transfer analysis of stationary bed materials in a CFB boiler after a sudden power failure[J].Fuel Processing Technology,2021,211:106587.

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Research on thermo-electric decoupling technology and economic evaluation of large double reheat heating units

Experimental study on start-stop peak regulation of a 350 MW supercritical circulating fluidized bed coal-fired power unit

Fuzzy comprehensive evaluation method for peak shaving capability of coal-fired power units

Thermodynamic performances of solar hybrid coal-fired power system

Analysis on condensate throttling technology for ultra supercritical double-reheat thermal power units

Related Author

许诚

王梦涵

马雲腾

李琳

李禹江

李禄明

孙立刚

于俊红

Related Institution

National Thermal Power Engineering & Technology Research Center,North China Electric Power University

China Huaneng Clean Energy Research Institute Co., Ltd.

State Key Laboratory of Coal-Based Clean Energy

Xi’an Thermal Power Research Institute Co., Ltd.

Wuhan University

AI问答

⁰