Liquid helium conveying pipeline and heat sink interface form design

A technology for conveying pipelines and liquid helium, which is applied in the field of interface design between liquid helium conveying pipelines and heat sinks, which can solve problems such as system failure, increased consumption of liquid helium, and increased cold loss of pipelines, and facilitate disassembly and assembly , The consumption of liquid helium is reduced, and the effect of solving low temperature cold leakage
CN101738055AInactive Publication Date: 2010-06-16BEIHANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIHANG UNIV
Publication Date
2010-06-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a liquid helium conveying pipeline and a heat sink interface form, mainly consisting of a heat sink pipeline (1), sealing gaskets (2), a positioning ring (3), a container flange (4), a conveying pipeline flange (5) and a liquid helium conveying pipeline (6). Polytetrafluoroethylene can be used as a material to prepare 3-10 sealing gaskets, the container flange and the heat sink pipeline are connected by welding, the conveying pipeline flange and the liquid helium conveying pipeline are connected by welding, the container flange is connected with the conveying pipeline flange through a bolt, and the liquid helium conveying pipeline adopts a double-layer vacuum Dewar pipe with less cold loss.
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Description

【Technical field】

[0001] The invention relates to the form design of the interface between the low-temperature delivery pipeline and the heat sink. The invention is particularly applicable to the design of the interface form between the liquid helium delivery pipeline and the heat sink. 【Background technique】

[0002] An important prerequisite for the study of the plume effect is to ensure the rapid adsorption of the gas in the plume experiment, so that the environmental vacuum can reach the specified index. Most of the high-altitude plume experiments are simulated by nitrogen gas, and the equipment used to absorb the gas in the plume experiment is mainly a cryogenic pump surrounding the inner surface of the vacuum container, that is, a helium plate (liquid helium heat sink). The United States and Germany, which were studied earlier in the world, both adopted this structural form. For example, the STG vacuum plume experimental system of DLR in Germany has a container with ...

Claims

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