大型并联真空系统抽气性能试验评估方法研究

doi:10.13385/j.cnki.vacuum.2025.03.09

真空 ›› 2025, Vol. 62 ›› Issue (3): 47-52.doi: 10.13385/j.cnki.vacuum.2025.03.09

大型并联真空系统抽气性能试验评估方法研究

孟少飞, 孙常新, 李宇辰, 张诣, 庞旭东

中国空气动力研究与发展中心高速空气动力研究所,四川绵阳 621000

收稿日期:2024-05-23 出版日期:2025-05-25 发布日期:2025-05-23
作者简介:孟少飞（1989-）,男,陕西省宝鸡市人,博士,工程师。

Research on Testing Assessment Method of the Pumping Performance for Large Parallel Vacuum Systems

MENG Shaofei, SUN Changxin, LI Yuchen, ZHANG Yi, PANG Xudong

High Speed Aerodynamic Institute, China Aerodynamics Research and Development Center, Mianyang 621000, China

Received:2024-05-23 Online:2025-05-25 Published:2025-05-23

摘要/Abstract

摘要： 多台套真空泵并联系统的总抽气量通常低于单泵额定抽气量的总和,这对真空系统的精细化设计带来一定的困难。针对该问题,提出了一种大型真空泵并联抽气性能试验评估方法。首先对多泵并联工况下真空系统的总体抽气性能进行数学建模,对多泵并联系统总抽气量和单泵抽气量降幅两个重要指标进行分析;其次对多泵并联试验工程方法进行研究,探索了基于小系统试验数据的大型并联系统总抽气量预估方法,在此基础上确定了试验模型及测量方法;最后基于小系统试验数据,采用两种方法对大型并联系统总抽气量进行了预测。结果表明,多泵并联试验方法能够以较低成本准确评估多台套大型真空泵并联抽气性能。

关键词: 多泵并联真空系统, 总抽气量, 单泵平均抽气量降幅

Abstract: For the parallel vacuum system composed of more than two pumps, the total pumpage always shows a certain decline compared with the sum of the rated pumpage of every single pump. This causes difficulty for precise design of vacuum systems. A testing assessment method of the pumping performance for large parallel vacuum systems was presented in this paper. The mathematic model was built to describe the pumping performance of parallel vacuum systems, and two important indexes, the total pumpage and the decline of average individual pumpage, were defined and analyzed. For the engineering feasibilities, the means by which the total pumpage could be predicted with the data from a small parallel system was explored, and the corresponding small test model, procedure and measurement were determined. Based on the small parallel system test data, the total pumpage of the large parallel system was predicted by two different means. The results show that the testing assessment method can realize accurate prediction of the pumping performance for the large parallel vacuum system with a relative low testing cost.

Key words: parallel vacuum pump, total pumpage, decline of average individual pumpage

中图分类号: TQ024

孟少飞, 孙常新, 李宇辰, 张诣, 庞旭东. 大型并联真空系统抽气性能试验评估方法研究[J]. 真空, 2025, 62(3): 47-52.

MENG Shaofei, SUN Changxin, LI Yuchen, ZHANG Yi, PANG Xudong. Research on Testing Assessment Method of the Pumping Performance for Large Parallel Vacuum Systems[J]. VACUUM, 2025, 62(3): 47-52.

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大型并联真空系统抽气性能试验评估方法研究

Research on Testing Assessment Method of the Pumping Performance for Large Parallel Vacuum Systems

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