Conical heat sink design for hinge type door

Abstract

The invention relates to a conically structured heat sink design used on an end cover of a vacuum vessel. The conically structured heat sink mainly comprises a framework (1), an upper liquid gathering header pipe (2), a branch pipe (3), a fin (4), and a lower liquid feed header pipe (5); according to different adsorbed gases, the structural style and the selected materials of the wall plate of the heat sink are different; and the conventional wall plate is welded by the copper fin (1) and the stainless steel branch pipe (2), wherein the stainless steel branch pipe is filled with a refrigerating medium, the type of the refrigerating medium depends on the property of a flow field gas, and the conventional medium is liquid nitrogen, liquid hydrogen, liquid helium, and the like. When the conically structured heat sink works, a fluid flows in from the lower part of the conical heat sink and flows out from the upper part of the conical heat sink. The conical heat sink makes full use of the useful space of the end cover of the vacuum vessel, and increases a plume absorption area; the conical angle of the conical heat sink is determined according to different forms of the end covers, and the conical angle covering the whole end cover is advisable; and the conical heat sink adopts the stainless steel branch pipe and the copper fin as materials, increases the static vacuum degree and the dynamic vacuum degree in the vacuum vessel, and not only is suitable for a liquid helium heat sink design, but also is suitable for a liquid nitrogen heat sink design.

Description

【Technical field】 [0001] This invention relates to conical heat sink designs for vacuum vessel doors. The invention finds particular application in the design of tapered heat sinks for hinged doors of vacuum vessels. 【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 a diameter of 3.3m and a length of 7.6m, and a cylindrical liquid heliu...

AI Technical Summary

Problems solved by technology

[0004] The doors of the vacuum vessels used for thermal vacuum experiments are all disc-shaped or ellipsoidal, and the heat sinks at the doors are all plate structures, such as the KM series vacuum vessels, and the heat sinks at the doors are all plate structures. This heat sink structure cannot effectively Use the space at the gate

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