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Detachable supercritical helium storage vessel for ground testing with suppression of thermoacoustic oscillations

A ground test, thermoacoustic oscillation technology, applied in the field of supercritical helium pressurization system ground test research, supercritical helium storage container, detachable supercritical helium storage container, can solve container temperature, pressure fluctuation, measurement error, The internal structure of the container cannot be changed in any form, so as to reduce the number of pipelines, avoid the sharp increase of heat leakage, and reduce the effect of conduction heat leakage

Active Publication Date: 2019-07-05
SHANGHAI JIAOTONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (1) The container lacks measures to actively suppress thermoacoustic oscillations, and thermoacoustic oscillations are very easy to occur in supercritical helium containers, which will bring much higher leakage heat to the container than expected in the adiabatic design, shortening the storage time of supercritical helium , at the same time, the thermoacoustic oscillation will also cause the temperature and pressure inside the container to fluctuate violently, which will bring errors to the measurement;
[0006] (2) The container is integrally formed by welding. Once the processing and packaging are completed, the internal structure of the container cannot be changed in any form. If there is a problem with parts such as connecting pipelines or measuring sensors, or it is necessary to change the internal structure for different working conditions According to the experimental research, the supercritical helium storage container with this structure will be powerless
[0007] The U.S. patent "Pressurizing device and method" with the patent number US9341315 proposes a new supercritical helium pressurization system workflow, but has never involved the specific structure of the supercritical helium storage container

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  • Detachable supercritical helium storage vessel for ground testing with suppression of thermoacoustic oscillations
  • Detachable supercritical helium storage vessel for ground testing with suppression of thermoacoustic oscillations
  • Detachable supercritical helium storage vessel for ground testing with suppression of thermoacoustic oscillations

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Embodiment Construction

[0040] The present invention will be described in detail below in conjunction with the embodiments and accompanying drawings, but the protection scope of the present invention is not limited to the following embodiments.

[0041] A detachable supercritical helium storage container for ground testing that suppresses thermoacoustic oscillations, comprising a lower half outer shell 1, an upper half outer shell 3, an inner tank 14, an inner tank support plate 10, a support plate fixing flange 6, and a sensor Install flange 20, filling / draining pipe 12, pressurization / exhaust pipe 15, vacuum valve 7, low-temperature exhaust valve 8, boom 16, temperature measuring point array, filling / draining pipe pressure sensor 2 , booster / exhaust pipe pressure sensor 5, damping gas storage 4, variable density multi-layer insulation material, and evacuation pipe. In order to facilitate disassembly, the lower half outer casing 1 and the upper half outer casing 3 are connected by a bolt fastening f...

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Abstract

The invention relates to a detachable type ground test supercritical helium storage container restraining thermal-acoustic oscillation and belongs to the technical field of astronautic propellant pressurization. The detachable type ground test supercritical helium storage container restraining thermal-acoustic oscillation is used for ground test researches of a supercritical helium storage and pressurization technology. The detachable type ground test supercritical helium storage container has the thermal-acoustic oscillation active restraining function. The detachable type ground test supercritical helium storage container has excellent thermal insulation performance through damping gas reservoirs, a variable-density multilayer thermal insulation material, low heat leakage lifting rods and a high-vacuum-degree environment, and the supercritical helium long-time storage and pressurized discharging demands are met. Meanwhile, the detachable type structure is adopted, reversible disassembly and assembly and replacement of all parts in the supercritical helium storage container can be conducted, and multiple research demands in the ground stage of the supercritical helium storage andpressurization technology can be met.

Description

technical field [0001] The invention relates to a supercritical helium storage container, in particular to a detachable supercritical helium storage container considering thermoacoustic oscillation suppression measures, which is used for the ground test research of supercritical helium pressurization systems of launch vehicles and space vehicles, and belongs to Aerospace propellant pressurization technology field. [0002] technical background [0003] Since the supercritical helium storage pressurization technology has the advantages of high efficiency, reliability, safety, light system structure, and small unusable amount of remaining helium, this technology has great development prospects in the field of aerospace propellant pressurization technology. However, the technology is still in the exploratory research stage and needs to be verified by extensive ground tests before it can be applied to liquid rocket or spacecraft pressurization systems. Therefore, the key compone...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F17C1/12F17C5/04F17C7/04F17C13/02
Inventor 黄永华蒋文兵王如竹吴静怡耑锐程光平张亮蒋赞
Owner SHANGHAI JIAOTONG UNIV
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