Compound refrigeration system for heat pipe of supergravity centrifuge

Patent metadata

Field	Value
Publication number	US-12480689-B2
Application number	US-202217748582-A
Country	US
Kind code	B2
Filing date	May 19, 2022
Priority date	Sep 10, 2021
Publication date	Nov 25, 2025
Grant date	Nov 25, 2025

Abstract

The present application provides a compound refrigeration system for a heat pipe of a supergravity centrifuge. The compound refrigeration system for the heat pipe of the supergravity centrifuge includes a rotor rotating around a vertical axis, an experimental cabin covering outside the rotor, and a corresponding cooling system. The rotor is provided with a shaft part which is in running fit with the experimental cabin. The shaft part is provided with a shaft top end located outside the experimental cabin. The cooling system includes a liquid cooling device and an evaporative cooling device. The liquid cooling device comprises a refrigeration source, and a first cooling medium circulating pipeline communicated with the refrigeration source and thermally coupled with a cabin wall of the experimental cabin. The evaporative cooling device includes a condensation chamber arranged outside the experimental cabin, and a heat pipe radiator thermally coupled with the rotor.

First claim

What is claimed is:

1 . A compound refrigeration system for a heat pipe of a supergravity centrifuge, comprising a rotor rotating around a vertical axis, an experimental cabin covering outside the rotor, and a corresponding cooling system, wherein the rotor is provided with a shaft part which is in running fit with the experimental cabin; the shaft part is provided with a shaft top end located outside the experimental cabin; the cooling system comprises a liquid cooling device and an evaporative cooling device;
the liquid cooling device comprises a refrigeration source, and a first cooling medium circulating pipeline communicated with the refrigeration source and thermally coupled with a cabin wall of the experimental cabin; the evaporative cooling device comprises a condensation chamber arranged outside the experimental cabin, and a heat pipe radiator thermally coupled with the rotor; a heat absorption end of the heat pipe radiator is fixed to the rotor; and a radiating end of the heat pipe radiator extends into the condensation chamber through the shaft top end.

2 . The compound refrigeration system for the heat pipe of the supergravity centrifuge according to claim 1 , wherein the liquid cooling device further comprises a second cooling medium circulating pipe thermally coupled with the condensation chamber.

3 . The compound refrigeration system for the heat pipe of the supergravity centrifuge according to claim 1 , wherein the condensation chamber is located above the shaft top end to enable condensate in the condensation chamber to flow into the shaft top end by the gravity.

4 . The compound refrigeration system for the heat pipe of the supergravity centrifuge according to claim 3 , wherein the heat pipe radiator is fixed to an outer side of the rotor; and the condensate flows in the heat pipe radiator in two ways to form a further cooling medium circulating pipeline.

5 . The compound refrigeration system for the heat pipe of the supergravity centrifuge according to claim 4 , wherein the rotor is of a symmetrical structure relative to the vertical axis thereof and has a high-temperature end far away from the vertical axis; the heat pipe radiator comprises:
a first pipeline, vertically extending in the shaft part, and an upper end of the first pipeline being a radiating end; and a second pipeline, one end of the second pipeline being communicated with a lower end of the first pipeline, and the other end of the second pipeline being a heat absorption end and extending to the high-temperature end.

6 . The compound refrigeration system for the heat pipe of the supergravity centrifuge according to claim 5 , wherein the second pipeline comprises:
a vertical section, close to a surface of the high-temperature end, and a lower end of the vertical section being the heat absorption end; and an inclined section, one end of the inclined section being communicated with a bottom end of the first pipeline, and a second end of the inclined section being communicated with an upper end of the vertical section.

7 . The compound refrigeration system for the heat pipe of the supergravity centrifuge according to claim 6 , wherein the upper end of the vertical section is higher than the position of a bottom end of the first pipeline.

8 . The compound refrigeration system for the heat pipe of the supergravity centrifuge according to claim 1 , wherein the cooling system further comprises a vacuum pump; and the vacuum pump is connected to the experimental cabin through a vacuum pipe to adjust a vacuum degree in the experimental cabin.

9 . The compound refrigeration system for the heat pipe of the supergravity centrifuge according to claim 2 , wherein the cooling system further comprises a cold storage tank communicated with the first cooling medium circulating pipeline, and used to store a cooling medium produced by the refrigeration source.

10 . The compound refrigeration system for the heat pipe of the supergravity centrifuge according to claim 1 , wherein the first cooling medium circulating pipe penetrates through a side wall of the experimental cabin.

Assignees

• Univ Zhejiang
• Architectural Design And Research Institute Of Zhejiang Univ Co Ltd

Inventors

• Yang Yi
• Wang Yalin
• Guo Yinan
• Ding De
• Yu Junxiang

Classifications

• B04B15/02 Primary

  for cooling, heating, or heat insulating · CPC title

• F25B41/40

  Fluid line arrangements · CPC title

• F28D15/0266

  with separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers (F28D15/043 takes precedence) · CPC title

• F25B25/005

  using primary and secondary systems · CPC title

• F25B7/00 Primary

  Compression machines, plants or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit (F25B9/00 takes precedence) · CPC title