Heat transfer system two separate heat loops in exchange

Patent metadata

Field	Value
Publication number	US-9625216-B2
Application number	US-201113877434-A
Country	US
Kind code	B2
Filing date	Oct 5, 2011
Priority date	Oct 8, 2010
Publication date	Apr 18, 2017
Grant date	Apr 18, 2017

Abstract

The invention relates to a heat transfer system with one main capillary pumped diphasic fluid loop and a secondary capillary pumped diphasic fluid loop suitable for cooling at least one hot source. The main fluid loop and the secondary fluid loop have one evaporator, a vapor pipe capable of conveying the cooling fluid in the vapor state from the evaporator to a condenser, a condenser and a liquid pipe capable of conveying the cooling fluid in the liquid state from the condenser to the evaporator-so that the cooling fluid of the main fluid loop is in heat exchange with the cooling fluid of the secondary fluid loop.

First claim

The invention claimed is:

1. A heat transfer system comprising at least one main capillary pumped diphasic fluid loop and a secondary capillary pumped diphasic fluid loop; the main fluid loop and the secondary fluid loop cooling at least one hot source, the main fluid loop including at least:
a main evaporator evaporating a main cooling fluid by recovering heat from said hot source; wherein the main evaporator includes a capillary structure;
a main vapour pipe conveying the main cooling fluid in the vapour state from the main evaporator to a main condenser;
the main condenser condensing the main cooling fluid by conveying heat to a first cold source; and
a main liquid pipe conveying the main cooling fluid in the liquid state from the main condenser to the main evaporator;
the secondary fluid loop including at least:
a secondary evaporator evaporating a secondary cooling fluid by recovering heat from said hot source; wherein the secondary evaporator includes a secondary capillary structure;
a secondary vapour pipe conveying the secondary cooling fluid in the vapour state from the secondary evaporator to a secondary condenser;
the secondary condenser condensing the secondary cooling fluid by conveying heat to a second cold source; and
a secondary liquid pipe conveying the secondary cooling fluid in the liquid state from the secondary condenser to the secondary evaporator;
the main cooling fluid of the main fluid loop is in heat exchange with the secondary cooling fluid in the liquid state of the secondary fluid loop, wherein the main cooling fluid being distinct from the secondary cooling fluid and the main fluid loop being separate from the secondary fluid loop.

2. The heat transfer system according to claim 1 , wherein the main cooling fluid in the vapour state of the main fluid loop is in heat exchange with the secondary cooling fluid in the liquid state of the secondary fluid loop.

3. Heat transfer system according to claim 1 , wherein the main cooling fluid contained in the main vapour pipe of the main fluid loop is in heat exchange with the secondary cooling fluid contained in the secondary evaporator of the secondary fluid loop.

4. The heat transfer system according to claim 1 , wherein the secondary evaporator of the secondary fluid loop comprises a secondary reservoir, and in that the main cooling fluid contained in the main vapour pipe of the main fluid loop is in heat exchange with the secondary cooling fluid contained in said secondary reservoir of the secondary fluid loop.

5. The heat transfer system according to claim 1 , wherein the main cooling fluid contained in the main vapour pipe of the main fluid loop is in heat exchange with the secondary cooling fluid contained in the secondary liquid pipe of the secondary fluid loop.

6. The heat transfer system according to claim 1 , wherein the main cooling fluid contained in the main vapour pipe of the main fluid loop is in heat exchange with the secondary cooling fluid contained in the secondary condenser of the secondary fluid loop.

7. The heat transfer system according to claim 1 , wherein the main cooling fluid in the liquid state of the main fluid loop is in heat exchange with the secondary cooling fluid in the liquid state of the secondary fluid loop.

8. The heat transfer system according to claim 1 , wherein the secondary evaporator of the secondary fluid loop comprises a secondary reservoir, and in that the main cooling fluid contained in the liquid pipe of the main fluid loop is in heat exchange with the secondary cooling fluid contained in the secondary reservoir of the secondary fluid loop.

9. The heat transfer system according to claim 1 , wherein the main cooling fluid contained in the main liquid pipe of the main fluid loop is in heat exchange with the secondary cooling fluid contained in the secondary liquid pipe of the secondary fluid loop.

10. The heat transfer system according to claim 1 , wherein the main cooling fluid contained in the main liquid pipe of the main fluid loop is in heat exchange with the secondary cooling fluid contained in the secondary condenser of the secondary fluid loop.

11. The heat transfer system according to claim 1 , wherein said heat exchange is carried out by direct or indirect contact between a part of the main fluid loop and a part of the secondary fluid loop.

12. The heat transfer system according to claim 1 , wherein the main fluid loop and the secondary fluid loop cool the same hot source.

Assignees

• Figus Christophe
• Airbus Defence & Space Sas

Inventors

• Figus Christophe

Classifications

• 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

• F28D15/043 Primary

  forming loops, e.g. capillary pumped loops · CPC title

• F28D15/046

  characterised by the material or the construction of the capillary structure · CPC title