Control method of pressurization and venting flow ratein cryogenic tank

周振君; 雷刚; 王天祥; 轩志勇

doi:10.13224/j.cnki.jasp.2018.05.029

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Control method of pressurization and venting flow ratein cryogenic tank

更新时间：2026-07-07

- Control method of pressurization and venting flow ratein cryogenic tank
- Vol. 33, Issue 5, Pages: 1263-1269(2018)
- 作者机构：
  
  1. 北京特种工程设计研究院航天低温推进剂技术国家重点实验室,北京,100028
  2. 中国航天科技集团有限公司中国运载火箭技术研究院研究发展中心,北京,100076
- 作者简介：
- 基金信息：
- DOI：10.13224/j.cnki.jasp.2018.05.029
  CLC：
- Published：2018
- 稿件说明：
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周振君, 雷刚, 王天祥, 轩志勇. 低温液氮贮箱增压及排气流量控制方法[J]. 航空动力学报, 2018, 33(5): 1263-1269.

doi: 10.13224/j.cnki.jasp.2018.05.029
周振君, 雷刚, 王天祥, 轩志勇. 低温液氮贮箱增压及排气流量控制方法[J]. 航空动力学报, 2018, 33(5): 1263-1269. DOI： 10.13224/j.cnki.jasp.2018.05.029.

doi: 10.13224/j.cnki.jasp.2018.05.029 DOI：

摘要

在对以液氮为工质的低温贮箱进行热分析的基础上推导了增压速率计算模型，并通过两种增压工况进行了验证。主要开展了直排模式、排气模式及并行模式下的气枕压力及蒸气排气流量的对比实验，通过后两者模式下的蒸气排放质量与直接排放相比，分析了压力控制带内单循环各个模式下热力排气系统（TVS）的效能，结果表明：采用低温蒸气节流的并行模式在蒸气排放质量和气枕降压速率上具有优于其他模式的明显优势，气相并行模式比直排模式质量减少97%。

Abstract

The model of pressurization rate in cryogenic tank with liquid nitrogen as the working medium was deduced from thermal analysis of the tank

two working conditions in experiment were set up to verify the model. Then experiment was mainly carried out contrastively in direct venting mode

venting mode and parallel mode to measure ullage pressure and venting rate of vapor in the storage tank

the masses of venting vapor of three models were compared

the TVS(thermodynamic venting system) efficiency of different models within pressure control range during single cycle was analyzed. Results of experiment showed that the vapor parallel model had obvious advantages on mass of venting vapor and depressurization rate of ullage than other models

and the venting mass of vapor in parallel model could reduce 97% than that in venting.

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Related Institution

Department of Refrigeration and Cryogenic Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University

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