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Oxygen supply device and oxygen supply method for a fuel cell in a confined space

A fuel cell and confined space technology, applied in fuel cells, fuel cell additives, circuits, etc., can solve the problems of long-term storage difficulties, poor filling operability, and low oxygen storage density, and achieve compact structure, easy transportation, and manufacturing The effect of high oxygen

Active Publication Date: 2020-06-16
BEIJING MECHANICAL EQUIP INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In view of the above analysis, the present invention aims to provide an oxygen supply device and an oxygen supply method for a fuel cell in a confined space, which solves the problems of low oxygen storage density, long-term storage difficulty, poor safety, increased Pay attention to poor operability and other issues

Method used

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  • Oxygen supply device and oxygen supply method for a fuel cell in a confined space

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Embodiment 1

[0033] This embodiment provides an oxygen supply device for a fuel cell in a confined space, such as figure 1 As shown, including an oxygen supply unit 10, an oxygen production unit 9 and a gas booster pump 8, the cathode of the fuel cell stack 1, the gas booster pump 8 and the oxygen production unit 9 form a gas circuit, and the oxygen production unit 9 is connected to the cathode air inlet An oxygen supply unit 10 is arranged on the connection pipeline between them, and superoxide is housed in the oxygen production unit 9 .

[0034] At the initial stage of starting the fuel cell system, the oxygen supply unit 10 is turned on, and a certain volume of oxygen in the oxygen supply unit 10 is supplied to the cathode of the fuel cell stack 1, and an electrochemical reaction occurs between the oxygen in the cathode and the fuel in the anode, releasing electric energy, and Produce water vapor or a mixed gas of water vapor and carbon dioxide; the gas produced by the cathode flows int...

Embodiment 2

[0056] This embodiment provides an oxygen supply method for a fuel cell used in a confined space, comprising the following steps:

[0057] Step 1: Turn on the oxygen supply unit, the oxygen in the oxygen supply unit is supplied to the cathode of the fuel cell stack, turn off the oxygen supply unit, an electrochemical reaction occurs between the oxygen in the cathode and the fuel in the anode, releases electric energy, and generates water vapor or A mixture of water vapor and carbon dioxide;

[0058] Step 2: The water vapor or mixed gas is pressurized by the gas booster pump and then flows into the oxygen generating unit. In the oxygen generating unit, the water vapor or mixed gas reacts with superoxide to generate oxygen;

[0059] Step 3: The generated oxygen is supplied to the cathode through the cathode air inlet, and reacts with the fuel of the anode to ensure the oxygen supply of the fuel cell.

[0060] Compared with the prior art, the beneficial effect of the oxygen supp...

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Abstract

The invention discloses an oxygen supply device for a fuel battery used in a sealed space and an oxygen supply method, belongs to the technical field of fuel battery components and solves the problemsthat in the prior art an oxygen supply system is low in oxygen storage density, difficult in long-term storage, poor in security, poor in injection operation, and the like. The device comprises an oxygen supply unit, an oxygen generation unit and a gas pressurizing pump, wherein the cathode of a fuel battery stack, the gas pressurizing pump and the oxygen generation unit form a gas loop; the oxygen supply unit is arranged on a connecting pipeline between the oxygen generation unit and a cathode gas inlet; the oxygen generation unit is filled with superoxide. The oxygen supply method comprisesthe following steps: opening the oxygen supply unit, feeding oxygen in the oxygen supply unit into the cathode of the fuel battery stack, pressurizing the gas generated from the cathode by using thegas pressurizing pump, enabling the gas to flow into the oxygen generation unit, and feeding generated oxygen into the cathode from the cathode gas inlet. The oxygen supply device and the oxygen supply method can be applied to oxygen supply of fuel batteries.

Description

technical field [0001] The invention relates to a fuel cell assembly, in particular to an oxygen supply device and an oxygen supply method for a fuel cell in a closed space. Background technique [0002] A fuel cell is a power generation device that uses fuel (such as hydrogen, methanol, natural gas, etc.) Type power generation, portable power supply, aircraft, ships and many other fields. Fuel cells can be mainly divided into hydrogen fuel cells and methanol fuel cells according to the type of fuel. Among them, [0003] The overall reaction of a hydrogen fuel cell is: 2H 2 +O 2 →2H 2 O+electric energy; [0004] The overall reaction of methanol fuel cell is: 2CH 3 OH+3O 2 →4H 2 O+2CO 2 + electric energy; [0005] However, for applications like confined spaces (for example, deep sea, deep space, underground), the application of fuel cells is limited due to the lack of oxygen in the environment. [0006] In the prior art, for fuel cells used in confined spaces, high...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/04089
CPCH01M8/04089H01M8/04097H01M8/04104H01M8/04201Y02E60/50
Inventor 马泽李跃华黄浩
Owner BEIJING MECHANICAL EQUIP INST
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