发电技术 ›› 2026, Vol. 47 ›› Issue (2): 304-314.DOI: 10.12096/j.2096-4528.pgt.260208

• 发电及环境保护 • 上一篇    

660 MW燃煤锅炉耦合废纺热解产物掺烧数值模拟研究

张翼惟1, 张成1, 韩澳1, 马仑2, 黄浩3, 刘宇浓3, 方庆艳1, 陈刚1   

  1. 1.煤燃烧与低碳利用全国重点实验室(华中科技大学),湖北省 武汉市 430074
    2.武汉理工大学安全科学与应急管理学院,湖北省 武汉市 430070
    3.广东省能源集团有限公司沙角C电厂,广东省 东莞市 523936
  • 收稿日期:2025-05-30 修回日期:2025-08-21 出版日期:2026-04-30 发布日期:2026-04-21
  • 作者简介:张翼惟(1999),男,硕士研究生,研究方向为燃煤耦合有机固废掺烧数值模拟, yiwei13292009400@163.com
    张成(1980),男,博士,教授,研究方向为固体废弃物高效综合利用、煤粉清洁燃烧与优化运行等,本文通信作者,chengzhang@hust.edu.cn
    韩澳(1999),男,硕士研究生,研究方向为有机固废热解半焦耦合燃煤发电,aohantb@163.com
    马仑(1990),男,博士,研究员,研究方向为含碳固体燃料耦合调控与机制,malun3g@126.com
    黄浩(1983),男,硕士研究生,高级工程师,研究方向为电厂运行管理等,249163428@qq.com
    刘宇浓(1966),男,高级工程师,研究方向为电力运行、燃煤锅炉燃烧优化、配煤掺烧等,shclyn888@163.com
    方庆艳(1974),男,博士,教授,研究方向为生物质与煤先进燃烧理论与技术、燃烧数值模拟等,qyfang@hust.edu.cn
    陈刚(1965),男,博士,教授,研究方向为清洁燃烧理论与技术、燃煤火电机组锅炉优化运行等,gangchen@hust.edu.cn
  • 基金资助:
    国家自然科学基金项目(52576115)

Numerical Simulation of Combustion of Waste Textile Pyrolysis Products in a 660 MW Coal-Fired Boiler

Yiwei ZHANG1, Cheng ZHANG1, Ao HAN1, Lun MA2, Hao HUANG3, Yunong LIU3, Qingyan FANG1, Gang CHEN1   

  1. 1.State Key Laboratory of Coal Combustion and Low Carbon Utilization (Huazhong University of Science and Technology), Wuhan 430074, Hubei Province, China
    2.School of Safety Science and Emergency Management, Wuhan University of Technology, Wuhan 430070, Hubei Province, China
    3.Shajiao C Power Plant, Guangdong Energy Group Co. , Ltd. , Dongguan 523936, Guangdong Province, China
  • Received:2025-05-30 Revised:2025-08-21 Published:2026-04-30 Online:2026-04-21
  • Supported by:
    National Natural Science Foundation of China(52576115)

摘要:

目的 废纺热解产物耦合燃煤发电不仅可提高废旧纺织品处理规模,降低发电成本,还对燃煤电厂碳减排有积极意义,为此,针对此工艺路线开展了燃烧数值模拟研究。 方法 构建了燃煤锅炉的网格模型,并耦合了纯煤燃烧及热解气燃烧反应机理。在此基础上进行了网格无关性和模型合理性验证,并以废纺热解质量流量、燃尽风风率、热解气入炉位置3个运行参数作为自变量,开展了燃烧数值模拟计算。 结果 3个参数的变化对炉膛出口飞灰含碳量及炉膛出口NO x 质量浓度具有复杂而显著的影响。 结论 综合考虑该工艺路线的安全、经济、环保性能,建议在热解半焦及热解气热量掺混比低于10%,且为炉外掺混方式下,将燃尽风风率维持在31%左右。对于废纺热解质量流量和热解气入炉位置,建议根据实际条件和需求来确定。

关键词: 燃煤锅炉, 废旧纺织品, 固废耦合, 热解半焦, 热解气, 混燃, 燃尽风, 数值模拟

Abstract:

Objectives The waste textile pyrolysis products coupled with coal-fired power generation can not only increase the treatment capacity of waste textiles and reduce power production costs, but also contribute positively to carbon emission reduction in coal-fired power plants. Therefore, numerical simulation of combustion is carried out for this process route. Methods A grid model of a coal-fired boiler is constructed, and the reaction mechanisms of pure coal combustion and pyrolysis gas combustion are coupled. On this basis, the grid independence and model rationality are validated, and the combustion numerical simulation is carried out with the three operating parameters of mass flow rate of waste textile pyrolysis products, overfire air ratio, and pyrolysis gas inlet position as independent variables. Results In the three parameters have complex and significant influences on fly ash carbon content and NO x mass concentration at the furnace outlet. Conclusions Considering the safety, economic, and environmental performance of this process route, it is recommended to maintain the overfire air ratio at around 31% when the heat blending ratio of pyrolysis char and pyrolysis gas is lower than 10% and blended outside the furnace. As for the mass flow rate of waste textile pyrolysis products and the pyrolysis gas inlet position, appropriate values should be determined according to actual conditions and demand.

Key words: coal-fired boiler, waste textile, solid waste coupling, pyrolysis char, pyrolysis gas, co-firing, overfire air, numerical simulation

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