
1.华电重工股份有限公司,北京市 丰台区 100070
2.华北电力大学能源动力与机械工程学院,北京市 昌平区 102206
[ "刘学(1971),男,硕士,正高级工程师,研究方向为节能、储能及空冷系统,liux@chec.com.cn;" ]
[ "李国栋(1972),男,博士,正高级工程师,研究方向为空冷及管道系统,ligd@chec.com.cn;" ]
[ "张瑞颖(1985),女,硕士,高级工程师,研究方向为热能动力工程,zhangry@chec.com.cn;" ]
[ "侯一晨(1997),男,硕士研究生,主要研究方向为智慧冷端系统安全节能运行,18832277235@163.com;" ]
[ "陈磊(1988),男,博士,副教授,研究方向为智慧冷端系统安全节能运行、电化学储能和氢能,本文通信作者,leichen@ncepu.edu.cn;" ]
[ "杨立军(1970),男,博士,教授,研究方向为热力发电节能、电池储能和氢能技术,yanglj@ncepu.edu.cn。" ]
收稿日期:2023-09-23,
修回日期:2023-11-16,
纸质出版日期:2024-06-30
移动端阅览
刘学,李国栋,张瑞颖等.电站空冷岛轴流风机模型研究[J].发电技术,2024,45(03):545-557.
LIU Xue,LI Guodong,ZHANG Ruiying,et al.Research on Axial Flow Fan Models of Air Cooling Island in Power Plant[J].Power Generation Technology,2024,45(03):545-557.
刘学,李国栋,张瑞颖等.电站空冷岛轴流风机模型研究[J].发电技术,2024,45(03):545-557. DOI: 10.12096/j.2096-4528.pgt.22159.
LIU Xue,LI Guodong,ZHANG Ruiying,et al.Research on Axial Flow Fan Models of Air Cooling Island in Power Plant[J].Power Generation Technology,2024,45(03):545-557. DOI: 10.12096/j.2096-4528.pgt.22159.
目的
2
轴流风机作为直接空冷系统的主要设备,其气动性能对于直接空冷系统的流动换热性能具有重要影响。由于空冷岛的流动换热问题在空间几何上跨越了多个尺度,采用实验方法进行研究较为困难,通常利用数值模拟的手段进行研究。因此,对于现在大多数模拟工作中采用的简化风机集总参数模型(简化模型)的准确性进行讨论分析十分必要。
方法
2
采用数值模拟的方法,分别建立了包含风机叶片的实体风机模型(实体模型)和简化模型。分别研究了不同温度、风速、风向角条件下采用实体风机和风机模型对于电站冷端系统输运性能的影响规律,通过对比分析获得了各个工况下的空气侧压力场和流场的分布规律,并对采用不同风机模型的电站冷端系统各个空冷凝汽器单位的轴流风机冷却空气压降和流量进行了统计和对比。
结果
2
实体模型与简化模型的差异主要体现在低流量区,且风速越大,差异越明显。
结论
2
研究结果可为提高电站冷端系统数值模拟研究的准确性提供参考。
Objectives
2
As the main equipment of the dry cooling system
the aerodynamic performances of axial flow fans play an important role in the flow and heat transfer performances of the direct dry cooling system. Because the flow and heat transfer problems of the air-cooled island spans multiple scales in geometric dimensions
the experimental method is hard to realize while the numerical simulation method is usually used. Therefore
it is necessary to discuss and analyze the accuracy of simplified lumped parameter fan model (i. e.
the simplified model) used in the previous simulation work.
Methods
2
Based on the numerical simulation method
the real model containing the fan blade fan model (real model) model and the simplified model were both built. Under different weather conditions
the transport properties of the direct dry cooling system were studied. The comparison and analysis of the air-side pressure field and flow field distributions were conducted. Furthermore
the pressure drops and flow rate of the cooling air through the axial flow fan in each air-cooled condenser cell of the direct dry cooling system with different fan models were analyzed and compared.
Results
2
The difference between the real model and the simplified model is mainly reflected for the axial flow fans with low flow rates
and the difference becomes more obvious with the increase of wind speed.
Conclusions
2
The results of this paper can provide reference for improving the accuracy of numerical simulation of the direct dry cooling system.
马义伟 . 发电厂空冷技术的现状与进展 [J ] . 电力设备 , 2006 ( 3 ): 5 - 7 . doi: JournalArticle/5ae3400cc095d70bd810f27a http://dx.doi.org/JournalArticle/5ae3400cc095d70bd810f27a
MA Y W . Present status and prospect of utility air cooling technology [J ] . Electrical Equipment , 2006 ( 3 ): 5 - 7 . doi: JournalArticle/5ae3400cc095d70bd810f27a http://dx.doi.org/JournalArticle/5ae3400cc095d70bd810f27a
戴振会 , 孙奉仲 , 王宏国 . 国内外直接空冷系统的发展及现状 [J ] . 电站系统工程 , 2009 , 25 ( 3 ): 1 - 4 . doi: 10.3969/j.issn.1005-006X.2009.03.001 http://dx.doi.org/10.3969/j.issn.1005-006X.2009.03.001
DAI Z H , SUN F Z , WANG G D . Present status and development of direct air-cooling unit in the world [J ] . Power System Engineering , 2009 , 25 ( 3 ): 1 - 4 . doi: 10.3969/j.issn.1005-006X.2009.03.001 http://dx.doi.org/10.3969/j.issn.1005-006X.2009.03.001
伍小林 . 我国火力发电厂空气冷却技术的发展现状 [J ] . 国际电力 , 2005 ( 1 ): 15 - 18 .
WU X L . The status quo of dry cooling technology of thermal power pants in China [J ] . International Electric Power for China , 2005 ( 1 ): 15 - 18 .
张永辉 , 万逵芳 , 刘颖 , 等 . 600 MW直接空冷机组风机群分区调节应用研究 [J ] . 内蒙古电力技术 , 2023 , 41 ( 2 ): 95 - 100 .
ZHANG Y H , WAN K F , LIU Y . Research on application of zoning regulation for fan groups of 600 MW direct air-cooling unit [J ] . Inner Mongolia Electric Power , 2023 , 41 ( 2 ): 95 - 100 .
CHEN L , YANG L J , DU X Z , et al . Novel air-cooled condenser with V-frame cells and induced axial flow fans [J ] . International Journal of Heat and Mass Transfer , 2018 ( 117 ): 167 - 182 . doi: 10.1016/j.ijheatmasstransfer.2017.09.139 http://dx.doi.org/10.1016/j.ijheatmasstransfer.2017.09.139
CHEN L , YANG L J , DU X Z , et al . A novel layout of air-cooled condensers to improve thermo-flow performances [J ] . Applied Energy , 2016 ( 165 ): 244 - 259 . doi: 10.1016/j.apenergy.2015.11.062 http://dx.doi.org/10.1016/j.apenergy.2015.11.062
HE W F , ZHANG X K , HAN D , et al . Sensitivity analysis from the blade angle regulation of the forced draught fans in an air-cooled steam condenser [J ] . Applied Thermal Engineering , 2017 , 123 : 810 - 819 . doi: 10.1016/j.applthermaleng.2017.05.151 http://dx.doi.org/10.1016/j.applthermaleng.2017.05.151
HE W F , CHEN J J , HAN D , et al . Numerical analysis from the rotational speed regulation within the fan array on the performance of an air-cooled steam condenser [J ] . Applied Thermal Engineering , 2019 , 153 : 352 - 360 . doi: 10.1016/j.applthermaleng.2019.03.016 http://dx.doi.org/10.1016/j.applthermaleng.2019.03.016
HE W , HAN D , YUE C , et al . Mechanism of the air temperature rise at the forced draught fan inlets in an air-cooled steam condenser [J ] . Applied Thermal Engineering , 2014 , 71 ( 1 ): 355 - 363 . doi: 10.1016/j.applthermaleng.2014.07.025 http://dx.doi.org/10.1016/j.applthermaleng.2014.07.025
PERICLEOUS K A , PATEL M . The modelling of tangential and axial agitators in chemical reactors [J ] . Physicochemical Hydrodynamics , 1987 , 8 ( 2 ): 105 - 123 .
SALTA C A , KROGER D G . Effect of inlet flow distortions on fan performance in forced draught air-cooled heat exchangers [J ] . Heat Recovery Systems and CHP , 1995 , 15 ( 6 ): 555 - 561 . doi: 10.1016/0890-4332(95)90065-9 http://dx.doi.org/10.1016/0890-4332(95)90065-9
MEYER C J , KROGER D G . Numerical simulation of the flow field in the vicinity of an axial flow fan [J ] . International Journal for Numerical Methods in Fluids , 2001 , 36 ( 8 ): 947 - 969 . doi: 10.1002/fld.161 http://dx.doi.org/10.1002/fld.161
BREDELL J R , KROGER D G , THIART G D . Numerical investigation of fan performance in a forced draft air-cooled steam condenser [J ] . Applied Thermal Engineering , 2006 , 26 ( 8 ): 846 - 852 . doi: 10.1016/j.applthermaleng.2005.09.020 http://dx.doi.org/10.1016/j.applthermaleng.2005.09.020
席新铭 , 杨勇平 , 杜小泽 , 等 . 电站直接空冷系统风机运行研究 [J ] . 现代电力 , 2007 ( 2 ): 52 - 55 . doi: 10.3969/j.issn.1007-2322.2007.02.011 http://dx.doi.org/10.3969/j.issn.1007-2322.2007.02.011
XI X M , YANG Y P , DU X Z , et al . Fan operations of direct air-cooled system in power plant [J ] . Modern Electric Power , 2007 ( 2 ): 52 - 55 . doi: 10.3969/j.issn.1007-2322.2007.02.011 http://dx.doi.org/10.3969/j.issn.1007-2322.2007.02.011
杨立军 , 杜小泽 , 杨勇平 . 空冷凝汽器全工况运行特性分析 [J ] . 中国电机工程学报 , 2008 ( 8 ): 24 - 28 . doi: 10.3321/j.issn:0258-8013.2008.08.005 http://dx.doi.org/10.3321/j.issn:0258-8013.2008.08.005
YANG L J , DU X Z , YANG Y P . Performance analysis of air-cooled condensers at all operating conditions [J ] . Proceedings of the CSEE , 2008 ( 8 ): 24 - 28 . doi: 10.3321/j.issn:0258-8013.2008.08.005 http://dx.doi.org/10.3321/j.issn:0258-8013.2008.08.005
杨立军 , 杜小泽 , 杨勇平 . 风机群分区调节对空冷岛传热特性的影响 [J ] . 工程热物理学报 , 2010 , 31 ( 1 ): 146 - 148 . doi: 10.1145/1836845.1836984 http://dx.doi.org/10.1145/1836845.1836984
YANG L J , DU X Z , YANG Y P . Influences of divisional regulation of axial flow fans upon heat transfer performance of direct air-cooled system [J ] . Journal of Engineering Thermophysics , 2010 , 31 ( 1 ): 146 - 148 . doi: 10.1145/1836845.1836984 http://dx.doi.org/10.1145/1836845.1836984
杨立军 , 杜小泽 , 张辉 , 等 . 电站空冷凝汽器轴流风机阵列集群效应的数值研究 [J ] . 科学通报 , 2011 , 56 ( 15 ): 1232 - 1239 . doi: 10.1007/s11434-011-4524-x http://dx.doi.org/10.1007/s11434-011-4524-x
YANG L J , DU X Z , ZHANG H , et al . Numerical investigation on the cluster effect of an array of axial flow fans for air-cooled condensers in a power plant [J ] . Chinese Science Bull , 2011 , 56 ( 15 ): 1232 - 1239 . doi: 10.1007/s11434-011-4524-x http://dx.doi.org/10.1007/s11434-011-4524-x
李福林 , 郭牧 , 张辉 , 等 . 直接空冷风机集群运行特性试验研究 [J ] . 热力发电 , 2013 , 42 ( 9 ): 66 - 69 . doi: 10.3969/j.issn.1002-3364.2013.09.066 http://dx.doi.org/10.3969/j.issn.1002-3364.2013.09.066
LI F L , GUO Y , ZHANG H , et al . Experimental study on cluster effect of axial flow fans for an air-cooled power generator [J ] . Thermal Power Generation , 2013 , 42 ( 9 ): 66 - 69 . doi: 10.3969/j.issn.1002-3364.2013.09.066 http://dx.doi.org/10.3969/j.issn.1002-3364.2013.09.066
黄鹤 , 赵廷进 . 环境风影响下空冷风机群的分区调节 [J ] . 东北电力大学学报 , 2017 , 37 ( 6 ): 50 - 55 . doi: 10.3969/j.issn.1005-2992.2017.06.010 http://dx.doi.org/10.3969/j.issn.1005-2992.2017.06.010
HUANG H , ZHAO T J . Divisional regulation of fan cluster for direct air-cooled units in wind environment [J ] . Journal of Northeast Electric Power University , 2017 , 37 ( 6 ): 50 - 55 . doi: 10.3969/j.issn.1005-2992.2017.06.010 http://dx.doi.org/10.3969/j.issn.1005-2992.2017.06.010
刘丽华 , 杜小泽 , 席新铭 , 等 . 直接空冷火电机组风机群分区调节运行实验 [J ] . 中国电机工程学报 , 2013 , 33 ( 17 ): 71 - 77 .
LIU L H , DU X Z , XI X M , et al . Experiments on divisional regulation of fan cluster for direct air-cooled power generating units [J ] . Proceedings of the CSEE , 2013 , 33 ( 17 ): 71 - 77 .
杨立军 , 杜小泽 , 杨勇平 . 环境风影响下的空冷岛运行特性 [J ] . 工程热物理学报 , 2009 , 30 ( 2 ): 325 - 328 . doi: 10.3321/j.issn:0253-231X.2009.02.042 http://dx.doi.org/10.3321/j.issn:0253-231X.2009.02.042
YANG L J , DU X Z , YANG Y P . Influences of natural wind upon the operation characteristics of air-cooled condenser system [J ] . Journal of Engineering Thermophysics , 2009 , 30 ( 2 ): 325 - 328 . doi: 10.3321/j.issn:0253-231X.2009.02.042 http://dx.doi.org/10.3321/j.issn:0253-231X.2009.02.042
CHEN L , HUANG W , WANG W , et al . Subregional modulation of axial flow fans to reduce condensate supercooling of air-cooled steam condenser in cold days [J ] . Applied Thermal Engineering , 2021 , 193 : 117016 . doi: 10.1016/j.applthermaleng.2021.117016 http://dx.doi.org/10.1016/j.applthermaleng.2021.117016
李健 . 直接空冷机组建模与优化控制研究 [D ] . 北京 : 华北电力大学 , 2019 .
LI J . Research on modeling and optimal control of direct air cooling unit [D ] . Beijing : North China Electric Power University , 2019 .
黄文慧 . 基于风机群流场组织的电站直接空冷系统性能优化 [D ] . 北京 : 华北电力大学 , 2021 . doi: 10.3390/en13123179 http://dx.doi.org/10.3390/en13123179
HUANG W H . Performance optimization of direct dry cooling system based on flow organization of fan array in power station [D ] . Beijing : North China Electric Power University , 2021 . doi: 10.3390/en13123179 http://dx.doi.org/10.3390/en13123179
陈磊 , 侯一晨 , 王伟佳 , 等 . 电站直接空冷系统防冻高效运行控制逻辑及数值模拟 [J ] . 中国电机工程学报 , 2022 , 42 ( 13 ): 4896 - 4907 .
CHEN L , HOU Y C , WANG W J , et al . Controlling logics and numerical simulation of energy-efficient anti-freezing operation for direct dry cooling system in power plant [J ] . Proceedings of the CSEE , 2022 , 42 ( 13 ): 4896 - 4907 .
安留明 , 安吉振 , 刘一帆 , 等 . 600 MW直接空冷凝汽器变工况特性研究 [J ] . 发电技术 , 2022 , 43 ( 6 ): 935 - 941 . doi: 10.12096/j.2096-4528.pgt.21089 http://dx.doi.org/10.12096/j.2096-4528.pgt.21089
AN L M , AN J Z , LIU Y F , et al . Study on variable working condition characteristics of 600 MW direct air cooling condenser [J ] . Power Generation Technology , 2022 , 43 ( 6 ): 935 - 941 . doi: 10.12096/j.2096-4528.pgt.21089 http://dx.doi.org/10.12096/j.2096-4528.pgt.21089
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