Electrochemical hydrogen pump for preparing high-pressure hydrogen

A high-pressure hydrogen and electrochemical technology, applied in the electrolysis process, electrolysis components, cells, etc., can solve the problems of low efficiency, high noise, high energy consumption, and achieve the effect of reducing cost, no noise, and high boosting efficiency

Pending Publication Date: 2020-12-18
ZHENGZHOU AFFIRMATIVE TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Based on this, it is necessary to provide an electrochemical hydrogen pump for producing high-pressure hydrogen in view of the pr

Method used

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  • Electrochemical hydrogen pump for preparing high-pressure hydrogen
  • Electrochemical hydrogen pump for preparing high-pressure hydrogen
  • Electrochemical hydrogen pump for preparing high-pressure hydrogen

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0049]Example one:

[0050]Such asfigure 1 withfigure 2 As shown, the low-pressure hydrogen inlet 11 and the low-pressure hydrogen outlet 12 are processed on one side of the fastening end plate 1 and the insulating plate 3 and the positive plate 4, and the end plate 1 and the insulation plate 3 and the negative plate 5 are fastened on the other side. Process a high-pressure hydrogen outlet 13. Between the fastening end plate 1 and the insulating plate 3, between the insulating plate 3 and the electrode plates 4, 5, and between the positive plate 4, the negative plate 5 and the separation fixing plate 6, seals are made. Select the original plate 6a of the partition fixed plate with the same thickness as the gas-liquid transmission plate 7, and process it to have a built-in step shape 6, and process the gas-liquid transmission plate into a corresponding boss shape 7, such asfigure 1 As shown, the separation fixing plate-gas-liquid transmission plate assembly formed by the convex-concave ...

Example Embodiment

[0053]Embodiment two:

[0054]Such asimage 3 withFigure 4 As shown, the difference between this embodiment and Embodiment 1 lies in the difference of the air chamber components 6-7. In this embodiment, the original plate 6a of the separating and fixing plate is selected, and recesses 6 are machined on both sides of the separating and fixing plate, and through holes 9 and 10 are formed on the separating and fixing plate, and the gas-liquid transmission plate is processed and embedded in the separating and fixing plate. In the concave platform. When a multi-stage hydrogen pump was used and multiple partitioned fixed plates were used, the gas-liquid channels processed on the adjacent partitioned fixed plates should preferably be misaligned to allow the gas and liquid to flow fully. Under the premise of ensuring good support, the gas-liquid channel can be one or more.

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Abstract

The invention relates to a multi-stage electrochemical hydrogen pump for preparing high-pressure hydrogen. The multi-stage electrochemical hydrogen pump for preparing the high-pressure hydrogen is composed of a fastening end plate, a fastening screw rod, an insulating plate, an electrode plate, a separation fixing plate, a gas-liquid transmission plate, a membrane electrode assembly and the like.The separation fixing plate and the gas-liquid transmission plate form a gas chamber assembly, the inner hole space of the gas chamber assembly directly serves as a gas chamber, the dead volume is reduced, and the safety is improved; the contact area with the membrane electrode is increased, the best support is provided for the membrane electrode, meanwhile, the ohmic impedance is reduced, and theefficiency of the hydrogen pump is improved; the multi-stage electrochemical hydrogen pump is formed by connecting a plurality of hydrogen pumps in series, and step-by-step pressurization is achieved. The structure is simple, machining and manufacturing are easy, large-scale production is facilitated, the cost can be greatly reduced, and meanwhile the assembling procedure and requirements are relatively simple and easy to control. The technology is wide in application range, can be used for small portable mobile hydrogen supercharging equipment, and a large fixed hydrogen refueling station and the like, and can also be used for high-purity hydrogen purification equipment.

Description

technical field [0001] The invention relates to the technical field of hydrogen production equipment, in particular to an electrochemical hydrogen pump for preparing high-pressure hydrogen. Background technique [0002] At present, making full use of natural energy and hydrogen energy is the best choice to achieve carbon emission reduction and cope with the depletion of fossil energy. Utilizing hydrogen energy requires solving key problems in several major links such as hydrogen production, storage, transportation, and utilization. [0003] Hydrogen mostly exists in a gaseous state. During storage and transportation, hydrogen must be compressed into high-pressure hydrogen or liquefied into liquid hydrogen. The method of compressing hydrogen into high-pressure hydrogen is mainly to compress the hydrogen repeatedly by mechanical energy, and then store it in a high-pressure cylinder. Not only is the booster equipment huge, the working process consumes a lot of energy, the nois...

Claims

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Application Information

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IPC IPC(8): C25B1/04C25B9/18
CPCC25B1/04Y02E60/36
Inventor 王科锋
Owner ZHENGZHOU AFFIRMATIVE TECH LTD
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