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Fuel cell electricity generation system using liquid oxygen as oxidant

A fuel cell and oxidant technology, applied in the direction of fuel cells, fuel cell additives, fuel cell heat exchange, etc., can solve the problem that liquid oxygen cannot be directly used for power generation by fuel cells, and achieve low cost, compact structure, and high reliability Effect

Active Publication Date: 2018-06-05
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, liquid oxygen cannot be directly used for fuel cell power generation. It needs to be used after being oxidized. The gasification process requires heat from the external environment.

Method used

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  • Fuel cell electricity generation system using liquid oxygen as oxidant
  • Fuel cell electricity generation system using liquid oxygen as oxidant

Examples

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Embodiment 1

[0019] A schematic flow chart of Example 1 of a fuel cell power generation system using liquid oxygen as an oxidant is shown in figure 1 Shown: This process is applicable to the proton exchange membrane fuel cell system of static drainage technology. This embodiment mainly considers the characteristics of the fuel cell static drainage technology, separates the thermal management of the fuel cell itself from the thermal management of the liquid oxygen system, and uses the heat exchanger to realize the excess of thermal energy.

[0020] combine figure 1 , the present invention is composed of a fuel cell module 1, a control valve 2, a buffer tank 3, a liquid oxygen storage tank 4, a circulating water pipeline 5, a circulating water pump 6, a monitoring unit 7, a heat exchanger 8, a water tank 9, a radiator 10, The hydrogen supply system 11 is composed.

[0021] The fuel cell module 1, the heat exchanger 8 and the radiator 10 constitute a thermal management circuit of the fuel c...

Embodiment 2

[0026] A schematic flow chart of Embodiment 2 of a fuel cell power generation system using liquid oxygen as an oxidant is shown in figure 2 Shown: This process is applicable to the proton exchange membrane fuel cell system with dynamic drainage technology. Considering the characteristics of the fuel cell dynamic water drainage technology, combining the thermal management waterway of the fuel cell itself with the thermal management waterway of the liquid oxygen system, the system will omit the heat exchanger 8 in Embodiment 1, and all the water circulation pipelines are at normal pressure Pipeline, the system is simpler. The specific implementation steps are as follows:

[0027] combine figure 2 , the present invention is composed of a fuel cell module 1, a control valve 2, a buffer tank 3, a liquid oxygen storage tank 4, a circulating water pipeline 5, a circulating water pump 6, a monitoring unit 7, a water tank 9, a radiator 10, and a hydrogen supply system 11. .

[00...

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Abstract

The present invention relates to a fuel cell electricity generation system using liquid oxygen as an oxidant, particularly to a proton exchange membrane fuel cell electricity generation system, whichcomprises a proton exchange membrane fuel cell module, a liquid oxygen storage tank, a buffer tank, a water box, a heat exchanger, a control valve, a heat dissipator, a circulation water pump, a circulation water pipeline, a monitoring unit and a control module. According to the present invention, the heat source of the liquid oxygen storage tank is supplied by the heat of the fuel cell so as to achieve liquid oxygen gasification, such that the fuel cell is supplied with the gas-state oxygen as the oxidant; and compared to the traditional high-pressure gas bottle oxygen storage method, the fuel cell electricity generation system of the present invention has advantages of high oxygen storage, light weight, small volume, low working pressure, safety, reliability, quick oxidant filling, simple oxidant filling method and the like, and is especially suitable for the fuel cell electricity generation system with the long-term endurance requirement in the closed system.

Description

technical field [0001] The invention relates to a fuel cell power generation system using liquid oxygen as an oxidant, in particular to a proton exchange membrane fuel cell power generation system using liquid oxygen as an oxidant in a closed system. Background technique [0002] A fuel cell is different from a battery in the traditional sense. It is a high-efficiency power generation device that converts chemical energy stored in fuel and oxidant into electrical energy electrochemically. It is also different from the traditional internal combustion engine. Although it needs fuel and oxidant like the internal combustion engine, it does not need to be burned, and can complete the chemical reaction at low temperature to realize the power generation function. There are many types of fuel cells, which can be divided into alkaline fuel cells, proton exchange membrane fuel cells, phosphoric acid fuel cells, molten carbonate fuel cells, and solid oxide fuel cells according to diffe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04746H01M8/04029H01M8/04007
CPCH01M8/04007H01M8/04029H01M8/04074H01M8/04746H01M8/04776Y02E60/50
Inventor 陶铁男周利邵志刚
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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