储能科学与技术 ›› 2020, Vol. 9 ›› Issue (S1): 70-77.doi: 10.19799/j.cnki.2095-4239.2020.0184

• 储能系统与工程 • 上一篇    下一篇

空压机喘振现象及防喘技术浅析

刘石1,2(), 黄正1,3, 胡亚轩1,2, 杨毅1,2, 高庆水1,2, 张楚1,2, 翁洪杰1,2, 安然然1,2, 李德波1,2, 杜胜磊1,2, 刘志刚1,2   

  1. 1.广东电网有限责任公司,广东 广州 510600
    2.广东电科院能源技术有限责任公司,广东 广州 510630
    3.广东电网有限责任公司电力科学研究院,广东 广州 510800
  • 收稿日期:2020-05-20 修回日期:2020-05-29 出版日期:2020-12-05 发布日期:2020-12-02
  • 通讯作者: 刘石 E-mail:caes_ls@163.com
  • 作者简介:刘石(1974—),男,博士,主要研究方向电网调度及储能,E-mail:caes_ls@163.com
  • 基金资助:
    国家重点研发计划项目(2017YFB0903604)

Brief analysis on surge phenomenon and anti-surge technology of air compressor

Shi LIU1,2(), Zheng HUANG1,3, Yaxuan HU1,2, Yi YANG1,2, Qingshui GAO1,2, Chu ZHANG1,2, Hongjie WENG1,2, Ranran AN1,2, Debo LI1,2, Shenglei DU1,2, Zhigang LIU1,2   

  1. 1.Guangdong Power Grid Co. Ltd. , Guangzhou 510600, Guangdong, China
    2.Guangdong Diankeyuan Energy Technology Co. Ltd. , Guangzhou 510630, Guangdong, China
    3.Electric Power Research Institute of Guangdong Power Grid Co. Ltd. , Guangzhou 510080, Guangdong, China
  • Received:2020-05-20 Revised:2020-05-29 Online:2020-12-05 Published:2020-12-02
  • Contact: Shi LIU E-mail:caes_ls@163.com

摘要:

为预防和解决核心关键部件空压机正常工作的最大不利固有因素——喘振现象的影响,本文通过对国内外相关文献的调研和探讨,分析压缩机喘振发生的参数变化和硬件诱因并进行定性说明,指出压缩机喘振现象的外在表现特征,明确喘振发生位置不确定且系统尺寸结构对喘振行为有较大影响,并对经验判定临界值B进行说明。总结提出硬件和软件防喘技术措施,阐述了基建和扩压器、叶轮、外壳等硬件结构对喘振影响进而指出对应的防喘措施和实施效果。通过图形和公式分别介绍固定极限流量法、变极限流量法和主动控制法等软硬件结合防喘振技术的原理,对比分析这几种技术的优势和特点以及可起到的作用,并对喘振检测的技术手段进行总结分类。最后对计算流体力学(CFD)技术进行了重点介绍,总结预测未来防喘振技术发展趋势。综合分析认为利用CFD结合主动控制防喘振技术会在将来发挥更加重要的作用,将帮助失速和喘振研究从定性接近定量,并实现压缩空气储能的空压机高效设计研发和正常高性能运行。

关键词: 压缩空气储能, 喘振, 固定极限法, 变极限流量法, 主动控制法, 计算流体力学

Abstract:

The impact of surge phenomenon is one of the biggest disadvantageous inherent factors in the normal operation of the core key component of air compressor. To address this issue, this work was performed through the investigation and discussion of the domestic and foreign-related literature to analyzes the parameter change and hardware inducement of the compressor surge to explore the external performance characteristics of the compressor surge phenomenon. It has been found that surge location is uncertain and the size structure of the system has a great effect on surge behavior, and the empirical critical value B is explained. This paper summarizes and puts forward anti-surge technical measures of the hardware and software, expounds on the impact of infrastructure, diffuser, impeller, shell, and other hardware structures on the surge, and points out the corresponding anti-surge measures and implementation effect. The principles of the fixing limit flow method, variable limit flow method and active control method with software and hardware were introduced in this work. The advantages, characteristics, and functions of these technologies are compared and analyzed, then the technical means of surge detection are summarized and classified. Finally, the computational fluid dynamics (CFD) technology is mainly introduced followed by the recent advancement in anti-surge technology and their future predictions are summarized. Comprehensive analysis shows that CFD combined with active control anti-surge technology will play a more important role in the future, which will help stall and surge research from qualitative to quantitative and achieve high-efficiency design and development of compressed air energy storage air compressor and normal high-performance operation.

Key words: compressed air energy storage, surge, fixing limit method, variable limit flow method, active control method, computational fluid dynamics

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