Device and method of quickly and accurately detecting impurities in high-purity hydrogen for hydrogen fuel cell

A fuel cell and detection method technology, applied in the direction of fuel cells, measuring devices, circuits, etc., can solve problems such as expensive, long analysis time, unsuitable for hydrogen fuel cell hydrogen stations, etc.

Active Publication Date: 2020-02-18
北京中计新科仪器有限公司 +1
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Problems solved by technology

[0005] The detection method of impurities in high-purity hydrogen for hydrogen fuel cells is based on chromatography, including TCD gas chromatography with variable temperature concentration and injection, HID gas chromatography, discharge gas chromatography, sulfur chemiluminescence detector (SCD), etc., which can be accurately q

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  • Device and method of quickly and accurately detecting impurities in high-purity hydrogen for hydrogen fuel cell
  • Device and method of quickly and accurately detecting impurities in high-purity hydrogen for hydrogen fuel cell
  • Device and method of quickly and accurately detecting impurities in high-purity hydrogen for hydrogen fuel cell

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Embodiment Construction

[0061] Attached below Figure 1-2 And the following specific embodiments describe the present invention in detail.

[0062] Such as figure 1 As shown, the present invention discloses a rapid and accurate detection device for impurities in high-purity hydrogen used in hydrogen fuel cells, including an ion source-mass spectrometer for quadrupole hydrogen detection (hereinafter referred to as "EI (ion source) - quadrupole hydrogen detection mass spectrometer) Instrument") 161, six-way valve 101, first gas mass flow controller 111, second gas mass flow controller 132, capillary column for gas analysis and insulation system 141, hydrogen gas injection channel, sample gas injection channel, standard gas injection Channel and gas quantitative loop 121;

[0063] The two pipelines of the gas quantitative loop 1211 communicate with the two interfaces of the six-way valve 101 respectively, the hydrogen injection channel communicates with one interface of the six-way valve 101, and one ...

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Abstract

The invention provides a device and a method of rapi`q dly and accurately detecting impurities in high-purity hydrogen for a hydrogen fuel cell. A direct sampling mode is adopted, complex sample pretreatment is omitted, and the cost and the system complexity are greatly reduced; high-purity hydrogen is taken as a carrier gas for quantitative sampling, and a standard gas is taken as reference, so that accurate quantification is realized; the special mass spectrum device for hydrogen detection greatly improves low-end mass number resolution, detection stability and sensitivity, and the system stability is remarkably superior to that of a general chromatographic mass spectrometry method; a special control software system comprises a mass axis automatic calibration software module, a high-purity carrier gas automatic measurement software module, a standard gas quantitative automatic measurement software module, a sample quantitative automatic measurement software module, a sample impuritygas automatic calculation software module, and due to a built-in algorithm, measurement and control automation are realized. The characteristics are beneficial to rapid and accurate determination of the high-purity hydrogen impurities of the hydrogen station of the hydrogen fuel cell.

Description

technical field [0001] The invention relates to the field of rapid and accurate detection of impurities in high-purity hydrogen for hydrogen fuel cells, in particular to a device and method for rapid and accurate detection of impurities in high-purity hydrogen for hydrogen fuel cells based on mass spectrometry direct sample injection analysis technology. Background technique [0002] With the continuous development of science and technology and high requirements for environmental protection, the national economy's demand for clean energy is becoming more and more extensive. Hydrogen energy is recognized as a clean energy source and is emerging as a low-carbon and zero-carbon energy source. my country, the United States, Japan, Canada, the European Union, etc. have all formulated hydrogen energy development plans, and currently my country has made many progresses in the field of hydrogen energy, and is expected to become one of the leading countries in hydrogen energy technol...

Claims

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Application Information

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IPC IPC(8): H01J49/00H01J49/04H01M8/0444G01N27/62
CPCH01J49/0031H01J49/0036H01J49/0422H01M8/0444G01N27/62Y02E60/50
Inventor 熊行创刘震何文魁
Owner 北京中计新科仪器有限公司
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