Server facility cooling system

Patent metadata

Field	Value
Publication number	US-10219415-B2
Application number	US-201715431748-A
Country	US
Kind code	B2
Filing date	Feb 13, 2017
Priority date	Feb 13, 2017
Publication date	Feb 26, 2019
Grant date	Feb 26, 2019

Abstract

Technology is provided for a server facility cooling system. The system can include a coolant tank containing an electrically insulating liquid and one or more servers submerged in the liquid. At least a portion of the heat generated by the servers is transferred to the liquid. An elongate cooling loop extends vertically between a first end and a second end, wherein the first end is located in the air and the second end is located underground. A heat exchanger is positioned between the coolant tank and the cooling loop to transfer heat from the liquid to the cooling loop. A cylindrical cooling tower is positioned around the first end of the cooling loop.

First claim

What is claimed is:

1. A server cooling system, comprising:
a tank containing an electrically insulating liquid;
one or more servers submerged in the liquid, wherein at least a portion of the heat generated by the one or more servers is transferred to the liquid;
an elongated cooling loop extending vertically between a first end portion and a second end portion, wherein the first end portion is located in the surrounding air and the second end portion is located beneath the surface of the earth; and
a heat exchanger positioned between the tank and the cooling loop configured to transfer heat from the liquid to the cooling loop,
wherein the heat exchanger comprises a thermally conductive wall in contact with the liquid on one side and in contact with the cooling loop on an opposite side.

2. The cooling system of claim 1 , further comprising a cylindrical cooling tower positioned around the first end portion of the cooling loop.

3. The cooling system of claim 2 , further comprising a fan positioned in the cooling tower to move air through the cooling tower.

4. The cooling system of claim 1 , wherein the thermally conductive wall comprises metal.

5. The cooling system of claim 1 , wherein the cooling loop comprises a tubular loop containing water.

6. The cooling system of claim 5 , further comprising a pump coupled to the cooling loop to circulate the water in the tubular loop.

7. A server cooling system, comprising:
a coolant tank containing an electrically insulating liquid;
one or more servers submerged in the liquid, wherein at least a portion of the heat generated by the one or more servers is transferred to the liquid;
an elongated cooling loop extending vertically between a first end portion and a second end portion, wherein the first end portion is located in the surrounding air and the second end portion is located beneath the surface of the earth;
a heat exchanger positioned between the coolant tank and the cooling loop configured to transfer heat from the liquid to the cooling loop; and
a cylindrical cooling tower positioned around the first end portion of the cooling loop,
wherein the heat exchanger comprises a metal wall in contact with the liquid on one side and in contact with the elongated cooling loop on an opposite side.

8. The cooling system of claim 7 , wherein the cooling loop comprises a tubular loop containing water.

9. A method for cooling servers, comprising:
submerging one or more servers in an electrically insulating liquid, whereby at least a portion of the heat generated by the one or more servers is transferred to the liquid;
positioning a heat exchanger in contact with the electrically insulating liquid; and
circulating a coolant in a vertically oriented loop between the heat exchanger and at least one heat sink, wherein the at least one heat sink is the earth,
wherein the heat exchanger comprises a thermally conductive wall in contact with the electrically insulating liquid on one side and in contact with the vertically oriented loop on an opposite side.

10. The method of claim 9 , further comprising circulating the electrically insulating liquid around the one or more servers.

Assignees

• Facebook Inc

Inventors

• Wiley Scott C

Classifications

• H05K7/2079

  within rooms for removing heat from cabinets · CPC title

• H05K7/20236

  by immersion · CPC title

• H05K7/20781 Primary

  within cabinets for removing heat from server blades · CPC title