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A system and method for on-line analysis of tail gas of a fuel cell stack

A fuel cell stack and analysis system technology applied in the field of fuel cells to achieve the effects of simple system structure, convenient operation, and low manufacturing and maintenance costs

Active Publication Date: 2018-12-21
WUHAN MARINE ELECTRIC PROPULSION RES INST CHINA SHIPBUILDING IND CORP NO 712 INST
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AI Technical Summary

Problems solved by technology

However, conventional fuel cell technology is insufficient to solve the above technical problems

Method used

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  • A system and method for on-line analysis of tail gas of a fuel cell stack

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Embodiment Construction

[0022] The present invention is described in detail below in conjunction with accompanying drawing and embodiment, and embodiment is as follows.

[0023] The purpose of the present invention is to provide an online analysis system for fuel cell stack exhaust gas according to the deficiencies of the prior art, which can realize online analysis and monitoring of stack exhaust gas, and provide real-time feedback on the internal working status of fuel cell stacks, which has important Practical significance and engineering value.

[0024] refer to figure 1 As shown, the invention discloses an online exhaust gas analysis system of a fuel cell stack, which includes a sample gas pretreatment unit and an analysis instrument unit.

[0025] The sample gas pretreatment unit described therein includes a sampling branch ball valve 1, a metal filter 2, a condenser 3, a steam-water separator 4, a membrane filter 5, a needle valve 6 and a flow meter 9 arranged sequentially on the pipeline; T...

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Abstract

The invention discloses an on-line analysis system for tail gas of a fuel cell stack, comprises a sample gas pretreatment unit and an analyzer unit, A sample gas pretreatment unit includes a ball valve, metal filter, condenser, steam-water separator, Membrane filter, needle valve and flowmeter, the filter adopts two-stage series mode, the condenser adopts coil type, the flowmeter adopts float flowmeter to ensure the steady flow of sample gas and the steady operation of the instrument, the analysis instrument unit includes on-line instrument and power supply, and the analysis instrument adoptselectrochemical principle to analyze the hydrogen / oxygen concentration in the sample gas in real time; A method for analyze that same is also disclosed; The invention can realize on-line analysis andmonitoring of the tail gas of the fuel cell stack, real-time feedback of the internal working state of the fuel cell stack and the hydrogen / oxygen concentration value in the tail gas, and has the advantages of simple structure, safety, reliability, low cost and the like.

Description

technical field [0001] The invention belongs to the technical field of fuel cells, and more specifically relates to an online analysis system and analysis method for tail gas of fuel cell stacks. Background technique [0002] A fuel cell is a power generation device that directly converts the chemical energy present in fuel and oxidant into electrical energy through an electrochemical reaction. The difference from conventional batteries is that the chemical energy stored in fuel and oxidant is directly converted into electrical energy through electrochemical reactions, with high capacity conversion efficiency, high reliability, and low environmental pollution. Its broad application prospects can be compared with computer technology. It is the most important way to solve the two major problems of resource scarcity and pollution deterioration. Governments of various countries and major companies have successively invested a lot of manpower and material resources in research, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/0662H01M8/0438H01M8/04664G01N27/26
CPCH01M8/04402H01M8/0441H01M8/04679H01M8/0662G01N27/26Y02E60/50
Inventor 徐增师戴昌闾张海波花仕洋王傲
Owner WUHAN MARINE ELECTRIC PROPULSION RES INST CHINA SHIPBUILDING IND CORP NO 712 INST
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