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Application of steady pressure technology of high-pressure large-flow hydrogen in test(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2011年04期
Page:
64-70
Research Field:
测控与试验
Publishing date:

Info

Title:
Application of steady pressure technology of high-pressure large-flow hydrogen in test
Author(s):
SONG Jing-jing;  ZHAO Hong-bo;  SUN De;  LIU Rui-min
Beijing Institute of Aerospace Testing Technology, Beijing 100074, China
Keywords:
-
PACS:
V434.2-33
DOI:
-
Abstract:
By contrast with the other tests, the medium tests have changed a lot, especially for the appearance of working condition of the high-pressure and large-flow hydrogen. So, the corresponding test techniques need to be improved. The large-flow steady pressure technology involved in this paper is an effective way to solve such problems. The key technology issues of regulating large flow, including the stability of pressure reducers in parallel and the controling accuracy of the critical gas flow in Venturi nozzle, were analyzed to insure its rationality and stability. This technology was used for the design of hydrogen blowing system. And the tests were accomplished successfully. The test results show that the hydrogen blowing system based on the large flow steady pressure technology is reasonable and reliable. The study provides a better technical support and practical foundation for the follow-up engine test.

References:

[1]孙淮清. 流量测量节流装置设计手册[M]. 北京: 化学工业出版社, 2005.
[2]王池. 流量测量不确定度分析[M]. 北京: 中国计量出版社, 2002.
[3]杨世铭.传热学[M]. 北京: 高等教育出版社, 1998.
[4]陈颖. 提高试车台配气系统减压器工作可靠性的措施[J].火箭推进, 2005, 31(5): 59-62.
[5]许铃. 音速喷嘴气体流量标准装置测量不确定度评定[J].中国测试技术, 2007, 33(3): 63-64.
[6]徐英华. 临界流文丘里喷嘴法气体流量标准装置的研制[J]. 现代测量与实验室管理, 2002(5): 7-10.

Memo

Memo:
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Last Update: 1900-01-01