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大型燃煤发电机组自然通风直接空冷塔的数值模拟及应用

杨倩,  孙振国,  孙新峰,  宁文刚,  张小兵,  王海军,  顾红芳,  徐宽,  邓双辉,  王学斌

杨倩, 孙振国, 孙新峰, 宁文刚, 张小兵, 王海军, 顾红芳, 徐宽, 邓双辉, 王学斌. 大型燃煤发电机组自然通风直接空冷塔的数值模拟及应用[J]. 环境工程, 2026, 44(8): 95-109. doi: 10.13205/j.hjgc.202608009
引用本文: 杨倩, 孙振国, 孙新峰, 宁文刚, 张小兵, 王海军, 顾红芳, 徐宽, 邓双辉, 王学斌. 大型燃煤发电机组自然通风直接空冷塔的数值模拟及应用[J]. 环境工程, 2026, 44(8): 95-109. doi: 10.13205/j.hjgc.202608009
YANG Qian, SUN Zhenguo, SUN Xinfeng, NING Wengang, ZHANG Xiaobing, WANG Haijun, GU Hongfang, XU Kuan, DENG Shuanghui, WANG Xuebin. Numerical simulation and application of natural draft direct air-cooling tower for large coal-fired power units[J]. ENVIRONMENTAL ENGINEERING , 2026, 44(8): 95-109. doi: 10.13205/j.hjgc.202608009
Citation: YANG Qian, SUN Zhenguo, SUN Xinfeng, NING Wengang, ZHANG Xiaobing, WANG Haijun, GU Hongfang, XU Kuan, DENG Shuanghui, WANG Xuebin. Numerical simulation and application of natural draft direct air-cooling tower for large coal-fired power units[J]. ENVIRONMENTAL ENGINEERING , 2026, 44(8): 95-109. doi: 10.13205/j.hjgc.202608009

大型燃煤发电机组自然通风直接空冷塔的数值模拟及应用

doi: 10.13205/j.hjgc.202608009
基金项目: 

“榆能杨伙盘煤电2×660MW工程自然通风直接空冷数模试验”(YHPMD-JH-Q-[2019-12-19])

详细信息
    作者简介:

    杨倩,高级工程师,主要研究方向为电气工程自动化。853947194@qq.com

    通讯作者:

    王海军,教授,主要研究方向为多相流与传热、核反应堆安全传热、空冷电站传热与系统优化、强化传热。whj@mail.xjtu.edu.cn

Numerical simulation and application of natural draft direct air-cooling tower for large coal-fired power units

  • 摘要: 为研究大型燃煤机组自然通风直接空冷塔(NDC)的流动与换热特性,以某电厂2×660 MW机组NDC系统为研究对象,建立了包含厂区主要建筑、空冷散热器及环境风场在内的三维CFD数值模型,系统分析了环境风速、环境温度、环境风向等气象因素,以及卷帘、百叶窗、旁通窗等调节措施对NDC散热性能的影响。结果表明:环境风速是影响NDC系统性能的主导因素,随风速增大,各散热三角进风量与散热量的分布不均匀性显著增强,机组背压升高,且上游塔受到的影响较下游塔更为显著。环境温度对周向流动分布影响较小,但会显著改变系统背压水平。在调节措施方面,迎风区卷帘关闭及局部百叶窗开度减小虽可在一定程度上改善气流再分配,但会导致整塔总风量与总散热量下降;相比之下,底部旁通窗在大风工况下可有效改善背风侧进风条件、提升散热能力,而顶部旁通窗的改善效果较为有限。研究结果可为大型NDC机组的优化设计、运行调节及节能降耗改造提供基础数据和技术参考。
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