Boiling cooling device and boiling cooling system

Patent metadata

Field	Value
Publication number	US-10816273-B2
Application number	US-201615781568-A
Country	US
Kind code	B2
Filing date	Jan 8, 2016
Priority date	Jan 8, 2016
Publication date	Oct 27, 2020
Grant date	Oct 27, 2020

Abstract

A boiling cooling device and a boiling cooling system which can promote boiling and restrain the cooling capacity of the device from deteriorating. A boiling cooling device includes: a pump to circulate refrigerant; a microbubble generator to produce microbubbles and incorporate the microbubbles into the refrigerant discharged from the pump; a boiling cooler to which the refrigerant containing the microbubbles is supplied and which boils the refrigerant; a radiator to cool the refrigerant after the refrigerant is boiled and before the refrigerant is taken in by the pump 11; and a gas-liquid separator 15 to separate gas from the circulating refrigerant after the refrigerant is boiled and before the refrigerant is taken in by the pump.

First claim

The invention claimed is:

1. A boiling cooling device comprising:
a pump to circulate refrigerant;
a microbubble generator to produce microbubbles and incorporate the microbubbles into the refrigerant discharged from the pump;
a boiling cooler to which the refrigerant containing the microbubbles is supplied and which boils the refrigerant;
a radiator to cool the refrigerant after the refrigerant is boiled and before the refrigerant is taken in by the pump; and
a gas-liquid separator to separate gas from the circulating refrigerant after the refrigerant is boiled and before the refrigerant is taken in by the pump,
wherein the microbubble generator is a fluid flow type microbubble generator, taking in gas via an intake port by using liquid flow force to produce microbubbles,
wherein the gas liquid separator includes an exhaust port to exhaust gas, and
wherein gas which is not made from the refrigerant, flows from the intake port to the exhaust port.

2. The boiling cooling device according to claim 1 , wherein the microbubbles are non-condensable gas.

3. The boiling cooling device according to claim 1 , further comprising a connecting pipe to connect a gas inlet port of the microbubble generator and an exhaust port of a gas container containing the gas separated in the gas-liquid separator.

4. The boiling cooling device according to claim 3 , wherein the connecting pipe comprises a valve to adjust a flow rate.

5. A boiling cooling system comprising:
a boiling cooling device according to claim 1 ; and
a heat producing device to be cooled in thermal contact with the boiling cooler.

6. A boiling cooling system comprising:
a boiling cooling device according to claim 2 ; and
a heat producing device to be cooled in thermal contact with the boiling cooler.

7. A boiling cooling system comprising:
a boiling cooling device according to claim 3 ; and
a heat producing device to be cooled in thermal contact with the boiling cooler.

8. A boiling cooling system comprising:
a boiling cooling device according to claim 4 ; and
a heat producing device to be cooled in thermal contact with the boiling cooler.

Assignees

• Mitsubishi Electric Corp

Inventors

• Ipposhi Shigetoshi
• Shinozaki Masaru
• Asai Yugo

Classifications

• F28F2250/08

  Fluid driving means, e.g. pumps, fans · CPC title

• F28D15/00 Primary

  Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls {; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies (F28D17/00, F28D19/00, F28D20/00 take precedence)} · CPC title

• F28D15/0258

  with means to remove contaminants, e.g. getters · CPC title

• F28D15/0266 Primary

  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

• F28D15/025

  having non-capillary condensate return means · CPC title