电站空冷技术:研究现状及建议

师进文; 高凡翔; 邹洋; 薛杨波; 赵强强; 王子豪; 王永杰; 王跃社

doi:10.7652/xjtuxb202307003

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电站空冷技术:研究现状及建议

—————————————————————— | 更新时间：2025-07-09

- 电站空冷技术:研究现状及建议
- Air Cooling Technology for Power Stations: Research Progress and Perspectives
- 西安交通大学学报 2023年57卷第7期页码：20-37
- 作者机构：
  
  1. 西安交通大学动力工程多相流国家重点实验室,西安,710049
  2. 西安热工研究院有限公司,西安,710043
  3. 山东网源电力工程有限公司,济南,250118
- 作者简介：
  
  : 2022-11-25。作者简介: 师进文(1981—),男,教授,博士生导师。基金项目: 国家重点研发计划资助项目(2019YFB1505403)
- 基金信息：
  
  : 2022-11-25。作者简介: 师进文(1981—),男,教授,博士生导师。基金项目: 国家重点研发计划资助项目(2019YFB1505403);陕西省油气田特种增产技术重点实验室开放基金资助项目(KFJJ-YZ-2022-2)。
- DOI：10.7652/xjtuxb202307003
  中图分类号： TK121
- 网络首发：2023-07-10，
  
  纸质出版：2023
- 稿件说明：
移动端阅览
师进文, 高凡翔, 邹洋, 等. 电站空冷技术:研究现状及建议[J]. 西安交通大学学报, 2023,57(7):20-37.

SHI Jinwen, GAO Fanxiang, ZOU Yang, et al. Air Cooling Technology for Power Stations: Research Progress and Perspectives[J]. 2023, 57(7): 20-37.
师进文, 高凡翔, 邹洋, 等. 电站空冷技术:研究现状及建议[J]. 西安交通大学学报, 2023,57(7):20-37. DOI： 10.7652/xjtuxb202307003.

SHI Jinwen, GAO Fanxiang, ZOU Yang, et al. Air Cooling Technology for Power Stations: Research Progress and Perspectives[J]. 2023, 57(7): 20-37. DOI： 10.7652/xjtuxb202307003.

摘要

空冷技术能够在电站冷端利用空气完成换热冷却

相比湿冷技术在节水、降耗、减排及降本方面具有独特优势。从系统设计与运行优化的角度出发

综述了直接空冷和间接空冷两大类空冷技术的研究进展。设计优化方面

换热器(凝汽器和散热器)的流动换热特性已获得广泛研究

相关优化一般从几何结构、位置布局等角度开展

然而目前凝汽器研究对象多局限于翅片管

针对管束整体的优化研究比较缺乏

散热器研究则需更全面地考虑几何参数的影响等; 另外

由于风机(群)直接决定凝汽器的进气流量

其气动特性和集群效应研究成为重点

目前已形成多种分区方法和运行控制策略实施调优

但优化方案的经济性分析研究还有待深入。运行优化方面

为了削弱环境效应对空冷系统的负面影响

可以通过加装导流板等改善流场以扩展风的正向效应、开发控制预测模型进行防冻调控或设计防冻装置优化传热、设计开发各类清洗系统进行除垢等。当前研究在换热器设计优化的精度、广度和各类环境效应作用机理方面仍有进步空间

未来研究方向还包括新能源电站应用空冷的适应性分析

运用人工智能技术进行换热器设计、性能预测等。

Abstract

Air cooling technology

which uses air at the cold end of the power station to complete heat exchanger cooling

has unique advantages in water saving

consumption reduction

emission reduction and cost reduction compared with wet cooling technology. From the perspective of system design and operation optimization

the research progress of two types of air cooling technologies

direct and indirect air cooling

is reviewed. In terms of design optimization

the flow heat transfer characteristics of heat exchangers(condensers and radiators)have been extensively studied

and the relevant optimizations are generally carried out from the perspectives of geometric structure

position layout

etc.

but at present

the research objects of condensers are mostly limited to finned tubes

and there is a lack of optimization research on the overall tube bundle

and research on the radiators needs to consider the influence of geometric parameters more comprehensively. In addition

since the fan(group)directly determines the inlet flow rate of the condenser

its aerodynamic characteristics and cluster effect have become the focus of research

and a variety of zoning methods and operation control strategies have been formed to implement tuning

but the economic analysis and research of the optimization scheme needs to be further carried out. In terms of operation optimization

in order to weaken the negative impact of environmental effects on the air cooling system

the flow field can be improved by installing deflectors to expand the positive effect of wind

developing control prediction models for antifreeze control or designing antifreeze devices to optimize heat transfer

and designing and developing various cleaning systems for descaling. At present

there is still room for improvement in research on the accuracy and breadth of heat exchanger design optimization and the mechanism of various environmental effects

and future research directions include the adaptability analysis of air cooling in the application of new energy power stations

and the use of artificial intelligence technology for heat exchanger design and performance prediction.

关键词

Keywords

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