# US 8,464,751 B2 · Oxygen content adjustment apparatus and container data center including the same

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- Number: US 8,464,751 B2
- Document ID: US8464751B2
- Status: Granted
- Kind: B2
- Application number: 12/886,523
- Filed: 2010-09-20
- Published: 2012-02-09
- Granted: 2013-06-18
- Earliest claimed: 2010-08-09
- Assignees: Hon Hai Precision Industry Co., Ltd.
- Applicants: Tsung-Han Su; Chun-Ming Chen
- Inventors: Tsung-Han Su; Chun-Ming Chen
- Web page: https://patentgrep.com/patent/US8464751B2

## CPC

- A62C 99/0018: {using gases or vapours that do not support combustion, e.g. steam, carbon dioxide}
- A62C 3/16: in electrical installations, e.g. cableways
- Y10T 137/7761: Electrically actuated valve
- Y10T 137/87692: With common valve operator
- A62C: FIRE-FIGHTING (fire-extinguishing compositions, use of chemical substances in extinguishing fires A62D1/00; spraying, applying liquids or other fluent materials to surfaces in general B05; alarm arrangements G08B, e.g. fire alarms actuated by smoke or gases G08B17/10)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

An oxygen content adjustment apparatus includes an oxygen content detector, a number of keys, a controller, an oxygen source, a first nozzle, a first valve, a flame retardant gas source, a second nozzle, and a second valve. The controller is connected to the oxygen content detector and the keys. A first terminal of the first valve is connected to the controller. A second terminal of the first valve is connected to the oxygen source. A third terminal of the first valve is connected to the first nozzle. A first terminal of the second valve is connected to the controller. A second terminal of the second valve is connected to the flame retardant gas source. A third terminal of the second valve is connected to the second nozzle.

## Claims

### Claim 1

An oxygen content adjustment apparatus comprising:
an oxygen content detector detecting oxygen content in a container data center and issuing a first detection result;
a plurality of keys regulating oxygen content inside the container data center;
a controller connected to the oxygen content detector and the plurality of keys;
an oxygen source storing oxygen;
a first nozzle set in the container data center;
a first valve connected between the oxygen source and the first nozzle, and comprising a control terminal electrically connected to the controller for controlling opening or closing of the first valve;
a flame retardant gas source storing flame retardant gas;
a second nozzle set in the container data center; and
a second valve connected between the oxygen source and the second nozzle, and comprising a control terminal electrically connected to the controller for controlling opening or closing of the second valve; wherein when the oxygen content in the container data center is less than a desired content corresponding to a pressed key, the controller controls the first valve to connect to the oxygen source and the first nozzle for making the oxygen stored in the oxygen source flow into the container data center, when the oxygen content in the container data center is greater than the desired content corresponding to the pressed key, the controller controls the second valve to connect the flame retardant gas source and the second nozzle for making the flame retardant gas stored in the flame retardant gas source flow into the container data center.

### Claim 2 (depends on 1)

The oxygen content adjustment apparatus of claim 1, wherein the flame-retardant gas is nitrogen, carbon dioxide, or heptafluoropropane.

### Claim 3 (depends on 1)

The oxygen content adjustment apparatus of claim 1, further comprising an air pressure detector and a gate, wherein the air pressure detector and a control terminal of the gate are connected to the controller, the air pressure detector detects air pressure in the environment and issues a second detection result to the controller, and the controller directs the gate to open if the air pressure in the environment exceeds a predetermined value.

### Claim 4

The oxygen content adjustment apparatus of claim wherein the plurality of keys comprises a first key, which, when activated, drives the controller to direct the oxygen content in the environment to within a 17%-21% range.

### Claim 5 (depends on 1)

The oxygen content adjustment apparatus of claim 1, wherein the plurality of keys comprises a second key, which, when activated, drives the controller to direct the oxygen content in the environment to within a 14%-17% range.

### Claim 6 (depends on 1)

The oxygen content adjustment apparatus of claim 1, wherein the plurality of keys comprises a third key, which, when activated, drives the controller to direct the oxygen content in the environment to below 14%.

### Claim 7

A container data center, comprising:
an oxygen content adjustment apparatus comprising:
an oxygen content detector detecting oxygen content inside the container data center and issuing a first detection result;
a plurality of keys regulating oxygen content in the environment inside the container data center;
a controller connected to the oxygen content detector and the plurality of keys;
an oxygen source storing oxygen;
a first nozzle set in the container data center;
a first valve connected between the oxygen source and the first nozzle, and comprising a control terminal electrically connected to the controller for controlling opening or closing of the first valve;
a flame retardant gas source storing flame retardant gas;
a second nozzle set in the container data center; and
a second valve connected between the oxygen source and the second nozzle, and comprising a control terminal electrically connected to the controller for controlling opening or closing of the first valve; wherein when the oxygen content in the container data center is less than a desired content corresponding to a pressed key, the controller controls the first valve to connect the oxygen source and the first nozzle for making the oxygen stored in the oxygen source flow into the container data center, when the oxygen content in the container data center is greater than the desired content corresponding to the pressed key, the controller controls the second valve to connect the flame retardant gas source and the second nozzle for making the flame retardant gas stored in the flame retardant gas source flow into the container data center.

### Claim 8 (depends on 7)

The container data center of claim 7, wherein the flame-retardant gas is nitrogen, carbon dioxide, or heptafluoropropane.

### Claim 9 (depends on 7)

The container data center of claim 7, wherein the oxygen content adjustment apparatus further comprises an air pressure detector and a gate, wherein the air pressure detector and a control terminal of the gate are connected to the controller, and the air pressure detector detects air pressure in the environment and issues a second detection result to the controller, which opens the gate if the air pressure in the environment exceeds a predetermined value.

### Claim 10 (depends on 7)

The container data center of claim 7, wherein the plurality of keys comprises a first key, which, when activated, drives the controller to direct the oxygen content in the environment to within a 17%-21% range.

### Claim 11 (depends on 7)

The container data center of claim 7, wherein the plurality of keys comprises a second key, which, when activated, drives the controller to direct the oxygen content in the environment to within a 14%-17% range.

### Claim 12 (depends on 7)

The container data center of claim 7, wherein the plurality of keys comprises a third key, which, when activated, drives the controller to direct the oxygen content in the environment to below 14%.