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A Performance Testing System of Vapor Cooling Screen Based on Evaporative Calorimeter

A vapor cooling and testing system technology, which is applied in the testing of machines/structural components, instruments, measuring devices, etc., can solve the problem of lack of experimental data of the vapor cooling screen, and achieve the effect of avoiding parasitic heat leakage and accurate measurement results

Active Publication Date: 2021-11-12
SHANGHAI JIAOTONG UNIV +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, the current experimental data on the vapor cooling screen is very scarce, and a large number of performance tests and optimization studies are still needed before the actual application of the vapor cooling screen.

Method used

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  • A Performance Testing System of Vapor Cooling Screen Based on Evaporative Calorimeter

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Embodiment Construction

[0046] The following describes several preferred embodiments of the present invention with reference to the accompanying drawings, so as to make the technical content clearer and easier to understand. The present invention can be embodied in many different forms of embodiments, and the protection scope of the present invention is not limited to the embodiments mentioned herein.

[0047] In the drawings, components with the same structure are denoted by the same numerals, and components with similar structures or functions are denoted by similar numerals. The size and thickness of each component shown in the drawings are shown arbitrarily, and the present invention does not limit the size and thickness of each component. In order to make the illustration clearer, the thickness of parts is appropriately exaggerated in some places in the drawings.

[0048] In the description of the embodiments of the present application, it should be clear that the terms "center", "middle", "upp...

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Abstract

The invention discloses a vapor cooling screen performance test system based on an evaporation calorimeter, which relates to the field of cooling screen performance test systems, including: a calorimeter, a thermal boundary temperature simulation screen, and a closed chamber. The calorimeter includes a test cavity, an upper protection cavity, and a lower protection cavity, the upper protection cavity is set above the test cavity, the lower protection cavity is set below the test cavity, and the upper protection cavity and the lower protection cavity are mutually connected; the thermal boundary temperature simulation screen is sleeved on the outside of the test chamber, and the tested vapor cooling screen is sleeved between the thermal boundary temperature simulation screen and the test chamber; the calorimeter and the The thermal boundary temperature simulation screens are all set in the vacuum chamber of the airtight chamber. Through the implementation of the present invention, it is possible to completely and accurately test various vapor cooling screens of different types and structural forms under different thermal boundary temperatures and different vacuum degree environments.

Description

technical field [0001] The invention relates to the field of cooling screen performance testing systems, in particular to a vapor cooling screen performance testing system based on an evaporation calorimeter. Background technique [0002] With the continuous development of deep space exploration and aerospace technology, cryogenic propellants need to meet the needs of long-term storage missions for months or even years in the future space orbit phase. Because the saturation temperature of cryogenic propellants is extremely low and the latent heat of vaporization is small, they are easily evaporated by heat during storage, making it difficult to store them for a long time. Therefore, how to reduce the evaporation loss of the propellant and prolong the storage time of the propellant is a key problem to be solved urgently in the field of low temperature at home and abroad. [0003] The vapor cooling screen can make full use of the cooling capacity of the evaporated propellant ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M99/00
CPCG01M99/002
Inventor 黄永华蒋文兵孙培杰李鹏
Owner SHANGHAI JIAOTONG UNIV
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