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Portable anti-dipping metal hydrolysis combined heat and power device and control method for hydrogen production

A technology of hydrogen production by hydrolysis and cogeneration of heat and power, which is applied to the control of reactant parameters, circuits, electrolytic components, etc., can solve the problems of large volume and weight, inaccurate hydrogen production rate, discharge, etc., and achieve simple and compact structure, save storage Hydrogen link, effect of controllability improvement

Active Publication Date: 2020-12-04
北京动力京工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The common point of these technologies is that the structure is relatively complex, requiring various circulation devices and heating devices; and they are bulky, requiring liquid storage tanks, gas storage tanks, reaction tanks, etc.; in addition, various catalysts need to be added, and hydrogen production cannot be precisely controlled rate; in order to maintain the pressure of the reaction tank, the technical solutions involved in these patents are usually directly connected to the atmospheric environment, which may cause volatile gas or liquid to be discharged, which is not conducive to the application in mobile applications; since the system is open and requires storage A large amount of hydrogen, so the safety and reliability of the system are greatly affected
[0005] To sum up, the existing technology has complex structure, large volume and weight, requires catalysts, and the rate of hydrogen production is not precise and controllable, and the hydrolysis device is not allowed to dump during the movement process, so it is not suitable for field movement and portable applications
Especially in field applications, there is usually a heating demand. If electric heating is used, a lot of energy will be wasted. Therefore, there is a lack of energy storage devices that are portable, anti-dumping, and combined heat and power.

Method used

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  • Portable anti-dipping metal hydrolysis combined heat and power device and control method for hydrogen production
  • Portable anti-dipping metal hydrolysis combined heat and power device and control method for hydrogen production
  • Portable anti-dipping metal hydrolysis combined heat and power device and control method for hydrogen production

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Embodiment Construction

[0041] The present invention will be further introduced below in conjunction with the accompanying drawings.

[0042] Hydrolysis of metals and their hydrides or chemical hydrides to produce hydrogen has high purity and simple equipment, and is an efficient and convenient hydrogen supply method. Magnesium and aluminum are two light alloying elements that are relatively abundant on Earth.

[0043] Magnesium or aluminum reacts with water to form hydrogen and release heat:

[0044] Mg+2H 2 O → Mg(OH) 2 +H 2 (1)

[0045] 2Al+6H 2 O → 2Al(OH) 3 +3H 2 (2)

[0046] figure 1 It is a schematic diagram of the portable anti-dipping metal hydrolysis cogeneration device system of the present invention. During the hydrolysis reaction, the metal will form hydroxide, and the hydroxide will form a passivation film on the metal surface. This layer of dense passivation film isolates the contact between water 104 and metal powder 103, so that the reaction cannot continue. In order to ...

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Abstract

The invention designs a portable anti-spilling combined heat and power supply device for hydrogen production by metal hydrolysis. The device comprises a hydrogen production tank, a control unit, a fuel cell, a DC / DC converter, a storage battery, an output terminal, a pressure sensor, a first pressure release valve, a pressure reducing valve, a second pressure release valve, a gas conveying pipe, an exhaust pipe, a keyboard display, an accelerometer, an air inlet grille, an exhaust interface and a shell. Compared with the prior art, the device is compact in structure, only one reaction tank isneeded, the hydrogen production rate is controlled only through current pulse without a catalyst, and the hydrogen production rate can be accurately controlled such that hydrogen can be produced at any time when the hydrogen is used, a hydrogen storage link is omitted, and the safety, reliability and controllability of a system are greatly improved. In order to solve the problem of toppling in themoving process, a related anti-spilling device is designed, and, therefore the anti-spilling device can be conveniently applied to a moving device or used portably. Through combined heat and power supply, the requirement of the field for energy is met, and the application range is expanded.

Description

technical field [0001] The invention relates to a portable anti-dipping metal hydrolysis combined heat and power device for hydrogen production, which belongs to the technical field of portable power supply devices and electric energy storage systems that directly convert chemical energy into electric energy, and in particular relates to a hydrogen energy storage power generation device and a control method thereof. Background technique [0002] Hydrogen is an important chemical raw material, which is widely used in petroleum, food, metallurgy and other fields. Due to its abundant resources, hydrogen energy has a high calorific value of combustion (142 kJg -1 ), and a series of advantages such as non-polluting products, it is considered to be an ideal green energy source. Especially for the application of hydrogen energy vehicles and hydrogen fuel cells, the potential demand for hydrogen is huge. Although hydrogen energy has many advantages, it has not yet been applied on ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/04082H01M8/04089H01M8/0656C25B1/04C25B9/04C25B15/02
CPCC25B1/04C25B15/02C25B9/65H01M8/04089H01M8/04201H01M8/0656H01M2250/20H01M2250/40Y02E60/36Y02E60/50
Inventor 冬雷赵松涛周华林郝颖李良伟
Owner 北京动力京工科技有限公司