玻璃纤维滤料在氦气气氛中过滤效率和阻力的理论分析

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基金项目:

国家自然科学基金(50608044,50978154)

Theoretical Analysis of Efficiency and Resistance of Glassfiber Filter Media in Helium Gas

Beijing Key Laboratory of Fine Ceramics, INET, Tsinghua University, Beijing, 100084, China

摘要: 针对空气和氦气介质,基于最易穿透粒径(MPPS)法和钠焰法,理论计算和分析了3种等级高效过滤材料的过滤效率及其阻力。研究结果表明:相对于空气介质,在同样滤速下,氦气介质中滤料的阻力降低,过滤效率大幅度提高;在同样滤速或颗粒直径下,随着温度升高,滤料阻力增大,过滤效率提高。
- 高温气冷堆 /
- 玻璃纤维滤料 /
- 氦气 /
- 最易穿透粒径法 /
- 钠焰法
Abstract: In the air and helium gas,based on MPPS and Sodium flame methods,this paper calculates the filtration efficiency and resistance of three levels of HEPA filter media.The results show that comparing with the air,in helium gas,filter media have lower resistance and higher efficiency,and secondly,at the same filtration rate and particle diameter,with the rise of environment temperature,the filter media have higher resistance and efficiency.
- MHTGR /
- Glassfiber filter media /
- Helium gas /
- MPPS method /
- Sodium flame method