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Auxiliary system for temperature-controllable and pressure-controlled gas sealing test platform

A technology of gas sealing and testing platform, which is applied in control/regulation system, liquid tightness measurement using liquid/vacuum degree, liquid/fluid solid measurement, etc. The effect of inflation rate and pressure stability

Active Publication Date: 2020-08-11
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing test platforms in China cannot fully simulate the above environment

Method used

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  • Auxiliary system for temperature-controllable and pressure-controlled gas sealing test platform
  • Auxiliary system for temperature-controllable and pressure-controlled gas sealing test platform

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Embodiment Construction

[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings and examples (taking hydrogen charging and discharging as an example), but the embodiment of the present invention is not limited to this one.

[0028] Such as figure 1 As shown, an auxiliary system for a temperature-controllable and pressure-controlled gas seal test platform is connected to the experiment box through pipelines, and is used to simulate the service environment of the high-pressure hydrogen storage seal. Tank voltage stabilization system, temperature control system and leak detection system, of which:

[0029] The gas increase / depressurization cycle system includes a low-pressure hydrogen supply system that fills the test box with low-pressure hydrogen, a high-pressure hydrogen supply system that fills the test box with high-pressure hydrogen, and a hydrogen recovery system that recovers hydrogen from the test box; the low-pressure hydrogen supply...

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Abstract

A temperature- and pressure-controllable auxiliary system for a gas seal testing platform, the system comprising five portions: a gas pressurization / depressurization circulation system, an experiment box pressure stabilization system, a leak detection system, a temperature control system, and a safety protection system. The auxiliary system is connected to an experiment box via a pipeline, and is used to simulate a service environment of a high-pressure hydrogen storage seal member. The gas pressurization / depressurization circulation system is capable of providing the experiment box with different pressure levels and hydrogen environments having different hydrogen circulation rates. The presence of a low-pressure hydrogen charging pipeline improves hydrogen charging efficiency. The temperature control system performs feedback regulation by means of a difference between a preset testing temperature and an actual temperature, and the feedback adjustment acts on flow regulating valves (6, 13, 19, 24, 29) used to regulate a flow speed of a heat exchange medium, thereby achieving smart temperature control.

Description

technical field [0001] The invention belongs to the technical field of high-pressure gas, and in particular relates to an auxiliary system for a gas sealing test platform with controllable temperature and pressure. Background technique [0002] As one of the new energy sources with the most development potential in the future, hydrogen energy has become the focus of development in various countries to cope with global warming and reform the energy structure. The extensive development and safe application of hydrogen energy is inseparable from the development of hydrogen storage technology. At present, high-pressure gaseous hydrogen storage is the most commonly used hydrogen storage method. In order to achieve safer and more efficient hydrogen storage, it is very important to improve the safety and reliability of key components such as seals for hydrogen storage. [0003] However, the sealing performance and damage mechanism of seals in a high-pressure hydrogen environment ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D27/02G01M3/04G01F1/00G01F1/34
CPCG01F1/00G01F1/34G01M3/04G05D27/02
Inventor 郭飞吴凡项冲米尔阿地力·江阿木提黄毅杰贾晓红王玉明索双富李永健黄伟峰
Owner TSINGHUA UNIV
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