Non-power consumption hydrogen gas circulating method for fuel cell and its device

A fuel cell and power consumption technology, applied in fuel cells, electrical components, circuits, etc., can solve the problems of increased difficulty, hydrogen leakage, narrow application range, etc., and achieve the effect of simple structure and low cost

Inactive Publication Date: 2006-05-03
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0007] (2) The volumetric fluid compression pump needs to consume a large amount of power when circulating a large flow rate of hydrogen (such as a flow rate of several hundred liters per minute)
[0008] (3) The volumetric fluid compression pump is noisy, and it is not easy to seal, and it is prone to hydrogen leakage
[0010] (1) The processing requirements of the elastic pump are very high, and each processed elas

Method used

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  • Non-power consumption hydrogen gas circulating method for fuel cell and its device

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and examples, but the scope indicated by the examples is not a limitation to the scope of protection claimed by the present invention.

[0026] figure 1 It is a structural schematic diagram of a fuel cell non-power consumption hydrogen circulation device suitable for medium and low voltage operation of the present invention. Such as figure 1 As shown, the hydrogen storage tank 1 is connected to the inlet of the driving end of the hydrogen circulation compression pump 2 through the control valve 7; the hydrogen pressure gauge 6 is set between the hydrogen storage tank 1 and the control valve 7; the outlet of the driving end of the hydrogen circulation compression pump 2 passes through the control valve 7 is connected to the inlet of the buffer tank 3; the hydrogen pressure gauge 6 is set between the buffer tank 3 and the control valve 7; the inlet of the buffer tank 3 is ...

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Abstract

The invention relates to a fuel cell non-powered consumption hydrogen gas circulating method and apparatus. The high pressure hydrogen gas of the hydrogen gas storage enters into the hydrogen gas circulating condenses pump driving end to drive the piston of the hydrogen gas circulating condenses pump to a certain position, then it enters into the buffer bucket and then the fuel cell pile, the excess hydrogen gas and the water generated by the reaction enters into the water-hydrogen separator and then the hydrogen gas circulating condenses pump condenses end, it enters into the buffer bucket after the forcing of the hydrogen gas circulating condenses pump, and then it mixes the hydrogen gas from the hydrogen gas circulating condenses pump driving end. The apparatus comprises a hydrogen gas storing bucket, a hydrogen gas circulating condenses pump, a buffer bucket, a fuel cell pile, and a water-hydrogen separator.

Description

technical field [0001] The invention relates to an auxiliary device of a fuel cell, in particular to a hydrogen circulation method and device for a fuel cell without power consumption suitable for medium and low voltage operation. Background technique [0002] A fuel cell (Fuel Cell, FC) is a power generation device that directly converts the chemical energy of fuel (mainly hydrogen) into electrical energy through an electrochemical reaction. Its core component is a membrane electrode (MEA), which consists of a proton exchange membrane and a membrane. It consists of two porous conductive materials sandwiched on both sides. Small catalysts for electrochemical reactions are evenly distributed on the two boundary surfaces of the membrane and the conductive material, such as catalysts loaded with Pt (cathode) and loaded with Pt-Ru (anode). Conductive materials can be used on both sides of the membrane electrode to extract the electrons generated by the chemical reaction to form...

Claims

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Application Information

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IPC IPC(8): H01M8/04082H01M8/04089
CPCY02E60/50
Inventor 朱冬生彭德其曾力丁
Owner SOUTH CHINA UNIV OF TECH
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