Hydrogen fuel cell system and control method thereof

A fuel cell system and controller technology, applied to fuel cells, circuits, electrical components, etc., can solve the problem that the number can only reach 1.5% to 2.5%, and achieve short startup and load response times, strong practicability, and reliability. high sex effect

Inactive Publication Date: 2017-09-15
北京鑫海港亿科技有限公司 +1
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Problems solved by technology

Metal hydrides are favored as hydrogen storage materials due to their safe and convenient storage and transportation of hydrogen. However, due to limitations in thermodynamics, kinetics, and metal atomic weight, some reversible metal hydrides can only store hydrogen with a mass fraction of 1.5. %~2.5%

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  • Hydrogen fuel cell system and control method thereof
  • Hydrogen fuel cell system and control method thereof
  • Hydrogen fuel cell system and control method thereof

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Embodiment Construction

[0031] The present invention will be further elaborated below through specific embodiments in conjunction with the accompanying drawings.

[0032] Such as figure 1 As shown, the hydrogen fuel cell system of this embodiment includes: a solution tank, a hydraulic pump, a high-speed solenoid valve, a reaction chamber, a three-way valve, a radiator, a gas-liquid separator, a pressure reducing valve, a waste liquid tank, a hydrogen storage tank, Reaction chamber temperature sensor, reaction chamber pressure sensor, radiator temperature sensor, hydrogen storage tank pressure sensor and controller.

[0033] In the present embodiment, the reaction solution adopts sodium borohydride solution, NaBH 4 It can be hydrolyzed in alkaline aqueous solution to generate hydrogen and water-soluble sodium metaborate, the reaction is as follows:

[0034] NaBH 4 +2H 2 O→4H 2 ↑+NaBO 2 (1)

[0035] Reaction (1) is an exothermic reaction, for each mole of H produced 2 Release 75kJ of heat, whi...

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Abstract

The invention discloses a hydrogen fuel cell system and a control method thereof. The control method comprises the following steps: performing hydrolysis to produce hydrogen by utilizing a reaction solution, controlling the reaction pressure and temperature of a reaction chamber, the temperature of a radiator and the pressure of a hydrogen storage chamber by a controller, and controlling the solution amount of the reaction solution. The method is a safe, high-efficiency and high-practicality hydrogen production technology. The hydrogen production fuel cell disclosed by the invention is short in start and load response time and high in reliability, can perform integrated control on temperature, humidity, pressure, catalyst contact conditions, solution supply, power regulation and other processes and parameters, and a gas source with controllable pressure and flow can be provided for the fuel cell. The reaction solution is injected into a tubular reactor filled with catalysts by adopting a hydraulic pump, and the hydrogen production speed is controlled by controlling the flow velocity of the reaction solution; change of hydrogen demand quantity is quickly responded, and accurate control of the output hydrogen flow and intelligent control of system parameters can be realized.

Description

technical field [0001] The invention relates to the field of hydrogen-oxygen fuel cell preparation, in particular to a hydrogen fuel cell system for hydrogen production based on sodium borohydride and a control method thereof. Background technique [0002] Fuel cell is the 4th generation power generation technology after thermal power, hydropower and nuclear power. It is the only power device that combines non-pollution, high efficiency, wide application, no noise, continuous operation and modularization. High-efficiency and clean power generation technology with development prospects. According to the source of fuel, fuel cells can be divided into three categories. The first type is a direct fuel cell, that is, its fuel directly uses hydrogen or light alcohols; the second type is an indirect fuel cell, its fuel does not directly use hydrogen, but converts light into hydrogen by a certain method (such as reforming) Alcohol, natural gas, gasoline and other compounds are con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04089H01M8/04701H01M8/04746H01M8/04828H01M8/0606H01M8/22
CPCH01M8/04097H01M8/04104H01M8/04708H01M8/04753H01M8/04835H01M8/0606H01M8/22Y02E60/50
Inventor 王亚斌李晓峰史卫泽
Owner 北京鑫海港亿科技有限公司
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