Progress and application of large-flux high-pressure gas reducing valve

XU Wanwu; YE Wei; LI Zhiyan; ZHANG Zhenkang; ZHANG Fuqiang

doi:10.7638/kqdlxxb-2022.0173

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Progress and application of large-flux high-pressure gas reducing valve

更新时间：2026-05-28

- Progress and application of large-flux high-pressure gas reducing valve
- Vol. 41, Issue 1, Pages: 49-56(2023)
- 作者机构：
  
  国防科技大学空天科学学院，高超声速冲压发动机技术重点实验室,长沙,410073
- 作者简介：
- 基金信息：
- DOI：10.7638/kqdlxxb-2022.0173
  CLC： V416.8
- Published：2023
- 稿件说明：
移动端阅览
徐万武, 叶伟, 李智严, 等. 大流量高压气体减压器技术研究进展及应用[J]. 空气动力学学报, 2023, 41(1): 49−56.

XU Wanwu, YE Wei, LI Zhiyan, et al. Progress and application of large-flux high-pressure gas reducing valve[J]. 2023, 41(1): 49-56.
徐万武, 叶伟, 李智严, 等. 大流量高压气体减压器技术研究进展及应用[J]. 空气动力学学报, 2023, 41(1): 49−56. DOI： 10.7638/kqdlxxb-2022.0173

XU Wanwu, YE Wei, LI Zhiyan, et al. Progress and application of large-flux high-pressure gas reducing valve[J]. 2023, 41(1): 49-56. DOI： 10.7638/kqdlxxb-2022.0173.

摘要

大流量高压气体减压器是大型连续式高超声速试验系统的核心设备，其气体减压供应能力、工作稳定性和可靠性等对高超声速试验系统的试验能力有重大影响。本文对气体减压器的减压原理、技术方案、评价指标和技术难点进行了梳理，介绍了国防科技大学在大流量高压气体减压器技术方面的研究进展，展望了大流量高压气体减压器技术在高超声速试验领域未来的发展趋势。

Abstract

Gaseous large-flux high-pressure reducing valve is the core equipment of the large continuous hypersonic test system. Its gas pressure reducing supply capacity

working stability and reliability have a significant impact on the test capacity of the hypersonic test system. This paper first introduces the principle

technical routine

evaluation index and technical difficulties of pressure-reducing valves for large-flow-rate and high-pressure gas. Second

the development and application of such pressure-reducing valves in the National University of Defense Technology (NUDT) in the past 15 years are summarized

with particular attention paid to the 35 MPa

100 kg/s pressure-reducing valve developed by NUDT. At last

the application of these valves in complex working conditions

such as large decompression ratios and a wide range of inlet pressure-ratio variation

as well as the future development trend of pressure-reducing valves in hypersonic test systems

are prospected.

关键词

Keywords

references

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