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 problems of high energy consumption, high noise and low efficiency in the pressurization process of current hydrogen production equipment.

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

Embodiment 1

[0050] Such as figure 1 and figure 2 As shown, a low-pressure hydrogen gas inlet 11 and a low-pressure hydrogen gas outlet 12 are processed on one side of the fastening end plate 1, insulating plate 3 and positive electrode plate 4, and on the other side, the fastening end plate 1, insulating plate 3 and negative electrode plate 5 Process the high-pressure hydrogen outlet 13. Sealing is done between the fastening end plate 1 and the insulating plate 3, between the insulating plate 3 and the electrode plates 4 and 5, between the positive plate 4, the negative plate 5 and the separating and fixing plate 6. Select the separation and fixing plate original plate 6a that is consistent with the thickness of the gas-liquid transmission plate 7, and process the shape 6 with a built-in step, and process the gas-liquid transmission plate into a corresponding boss shape 7, such as figure 1 As shown, the separation and fixing plate-gas-liquid transmission plate assembly formed by the co...

Embodiment 2

[0054] Such as image 3 and Figure 4 As shown, the difference between this embodiment and Embodiment 1 is that the air chamber components 6-7 are different. In this embodiment, the original plate 6a of the partition and fixing plate is selected, recesses 6 are processed on both sides of the partition and fixing plate, through holes 9 and 10 are processed on the partition and fixing plate, and the gas-liquid transmission plate is processed and embedded in the partition and fixing plate in the recessed platform. When a multi-stage hydrogen pump is used and multiple partitions and fixed plates are used, the gas-liquid channels processed on adjacent partitioned fixed plates should be staggered so that the gas and liquid can fully flow. Under the premise of ensuring good support, there can be one or more gas-liquid channels.

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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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