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Portable hydrogen generator based on aluminium hydrolysis reaction and control method

A hydrolysis reaction and generator technology, applied in the field of hydrogen production, can solve the problems of increasing the complexity of the system structure, the manufacturing cost, the bulky size of the hydrogen production device, and affecting unsafe factors, and achieves the effects of simple structure, low cost, and easy maintenance.

Inactive Publication Date: 2011-02-16
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Invention patent (CN, 02104279.9) developed the hydrogen production technology and device by reacting aluminum and sodium hydroxide aqueous solution. The method is simple, but the hydrogen production device has a large number of accessories, such as pressure control, liquid level gauge, metering pump, etc. The complexity of the system structure and the manufacturing cost of the device
However, the design of the system is still complicated, and there are still a large number of auxiliary components, resulting in a large hydrogen production device.
Secondly, the reaction between aluminum and lye is a violent exothermic reaction. If a large amount of heat is not effectively removed, it may lead to rapid agglomeration of hydrolyzed products, affecting the progress of the reaction and causing unsafe factors and other consequences.

Method used

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  • Portable hydrogen generator based on aluminium hydrolysis reaction and control method

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Embodiment 1

[0021] A hydrogen production generator comprises a water injection pipe, a heat exchange chamber, a water inlet cylindrical pipe, a tank body, a separation membrane, a water inlet capillary, a cover body, a solid nut, and an air outlet valve. Water is added through the water injection pipe, which is threaded and can be isolated from the outside world by a nut, and can also be connected to other water tanks; water enters the heat exchange chamber through the water injection pipe, and the heat exchange chamber is provided with trapezoidal threads; the water inlet capillary connects the heat exchange chamber and Cylindrical tube. The separation membrane connects the alloy storage chamber and the hydrogen storage chamber. There is a gas outlet pipe on the top of the cover, and a pressure regulating valve and a flow regulating valve are installed at the output end, which can adjust the flow and pressure of the hydrogen at the outlet to meet different needs. The hydrogen generator ...

Embodiment 2

[0023] 1. The hydrogen production method of the hydrogen production device in Example 1, the reactant water is added through the water injection pipe, fills the heat exchange chamber, passes through the capillary, enters the alloy storage chamber along the water inlet cylinder, and reacts with the alloy in the storage chamber to produce Take hydrogen; the hydrogen passes through the separation membrane for solid-gas separation, and the hydrogen enters the hydrogen storage chamber. After the hydrogen is purified, it is output through the port of the outlet pipe, and the port of the outlet pipe is connected with a gas-liquid separation membrane. If the hydrogen is not output in time, a pressure is formed in the hydrogen storage chamber. When the pressure is less than the pressure ΔP between the water injection pipe port and the water inlet capillary, water will continue to enter from the capillary; otherwise, when the hydrogen storage chamber pressure is equal to or greater than ...

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Abstract

The invention relates to a portable hydrogen generator for generating hydrogen through aluminium alloy hydrolysis and a control method. The invention belongs to the technical field of hydrogen preparation and is characterized in that the hydrogen generator comprises a water injection tube, a heat exchange area, a capillary tube, water inlet cylindrical tubes, an alloy storage chamber (namely reaction area), a separation membrane and a hydrogen storage chamber. Water is added through the water injection tube and passes through the heat exchange chamber, the capillary tube at the side upper part of the hydrogen storage chamber and the water inlet cylindrical tubes to react with alloys in the storage chamber. The generated hydrogen is stored in the hydrogen storage chamber or is led out from the gas outlet tube. The rate of generating hydrogen through alloy hydrolysis depends on the potential energy difference between the water injection tube and the capillary tube and the rotating depth of a water injection tube nut. The hydrogen generator has the advantages of simple device, safety, reliability, electricity omission, good controllability, steady output hydrogen pressure and the like, can effectively control the generating rate and yield of hydrogen and is suitable for various fuel cells.

Description

technical field [0001] The invention belongs to the technical field of hydrogen preparation, and in particular relates to a hydrogen generator suitable for aluminum alloy hydrolysis reaction and a control method thereof. Background technique [0002] Proton exchange membrane batteries using hydrogen as fuel have outstanding advantages such as high energy conversion efficiency, environmental friendliness, long life, and high specific power. They are considered to be the ideal power sources of choice for mobile tools such as laptops and mobile phones. In addition to the requirements of small size and portability, the small proton exchange membrane battery also requires the hydrogen supply system to produce hydrogen quickly, efficiently, safely, and the system design is simple. Conventional hydrogen storage methods, such as high-pressure hydrogen storage and alloy compound hydrogen storage, are difficult to meet the above requirements. Therefore, in recent years, hydrogen prod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B3/08
CPCY02E60/36
Inventor 范美强沈杭燕陈达柴文祥田光磊
Owner CHINA JILIANG UNIV