Energy Storage Science and Technology ›› 2025, Vol. 14 ›› Issue (3): 1054-1069.doi: 10.19799/j.cnki.2095-4239.2024.0942

• Emerging Investigator Issue of Energy Storage • Previous Articles     Next Articles

Research progress on intake filtration system of compressor

Xinran LI1,2(), Xuehui ZHANG1,2(), Xin ZHOU1,3, Dingzhang GUO1, Jixiang CHEN1,2, Yuchao XIE1,2, Haisheng CHEN1,2,3,4()   

  1. 1.Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100191, China
    2.School of Engineering Science, University of Chinese Academy of Sciences, Beijing 100049, China
    3.National Energy Large Scale Physical Energy Storage Technologies R&D Center (Bijie), Bijie 551712, Guizhou, China
    4.Nanjing Institute of Futuere Energy System, Institute of Engineering Thermophysics, Chinese Academy of Sciences, Nanjing 211135, Jiangsu, China
  • Received:2024-10-08 Revised:2024-11-22 Online:2025-03-28 Published:2025-04-28
  • Contact: Xuehui ZHANG, Haisheng CHEN E-mail:lixinran@iet.cn;zhangxuehui@iet.cn;chen_hs@iet.cn

Abstract:

Compressed air energy storage is considered the most promising technology for large-scale energy storage, and the compressor, as a key component of the system, significantly influences overall performance. The compressor's intake filtration system is critical because its filter effectively prevents impurities-such as solid particles, liquid water, and oil pollution, from compromising safe and stable operation, an issue that has attracted widespread attention from scholars domestically and internationally. Although progress has been achieved in compressor intake filtration systems, literature reviews in this area remain relatively scarce. This article reviews research by domestic and international scholars on compressor intake filtration systems, categorizing studies according to filtration principles, including mechanical, adsorption, and electrostatic methods, and examines evaluation indicators and optimization approaches for filter performance. The following conclusions are drawn: compared with adsorption filters, mechanical and electrostatic filters are more widely used and offer advantages such as high filtration efficiency and low pressure drop; the evaluation indicators of the intake filtration system primarily include filtration efficiency, pressure drop, dust holding capacity, and moisture resistance; filter material, filter structure, and operating conditions interact to affect filtration performance; and the intake filtration system can be optimized by employing nanofiber composite filter materials with enhanced performance and by refining the filter element and channel structure.

Key words: compressor, filtration efficiency, pressure drop, dust holding capacity

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