金属氢化物反应器结构对储氢性能影响研究

doi:10.12422/j.issn.1672-6952.2023.06.006

辽宁石油化工大学学报 ›› 2023, Vol. 43 ›› Issue (6): 37-43.DOI: 10.12422/j.issn.1672-6952.2023.06.006

• 材料科学与新能源（氢能技术研究） • 上一篇下一篇

金属氢化物反应器结构对储氢性能影响研究

李丁健¹(), 刘春枝², 赵立前², 刘学武¹()

^1.大连理工大学化工学院，辽宁大连 116024
^2.中国石油天然气管道局，河北廊坊 065000

收稿日期:2023-06-19 修回日期:2023-08-17 出版日期:2023-12-25 发布日期:2023-12-30
通讯作者: 刘学武
作者简介:李丁健（1999⁃），男，硕士研究生，从事固态储氢方面的研究；E⁃mail：darians123@163.com。
基金资助:
国家重点研发计划氢能技术重点专项(2021YFB4000604);青岛市关键技术攻关及产业化示范类项目(23?1?3?hygg?16?hy)

Influence of Internal Structure of Metal Hydride Reactor on Hydrogen Storage Performance

Dingjian LI¹(), Chunzhi LIU², Liqian ZHAO², Xuewu LIU¹()

^1.School of Chemical Engineering, Dalian University of Technology, Dalian Liaoning 116024, China
^2.China Petroleum Pipeline Bureau, Langfang Hebei 065000, China

Received:2023-06-19 Revised:2023-08-17 Published:2023-12-25 Online:2023-12-30
Contact: Xuewu LIU

摘要/Abstract

摘要：

建立金属氢化物反应器及测试平台，通过实验测试得到不同水浴温度、放氢流量及反应器结构（方形、蜂窝结构及无隔层）下反应器内部温度和吸/放氢流量数据，确定了不同结构反应器的温度场分布趋势和规律。结果表明，方形结构反应器内部温度变化速率最快，换热效果最好。进一步研究了方形结构反应器在不同吸氢压力和放氢速率下的综合性能。结果表明，当进气压力为2.0～3.0 MPa时，能显著提高合金材料的吸氢量及吸氢速率；当放氢流量小于3.2 L/min时，可放出85%以上的氢气。研究结果可为模块化和系统化设计提供技术指导。

关键词: 金属氢化物储氢, 换热翅片, 储氢结构, 温度变化, 流量变化

Abstract:

Establish a metal hydride reactor and test platform, and obtain the corresponding internal temperature and hydrogen absorption/desorption flow data of the reactor under different water bath temperatures, hydrogen release flow rates, and reactor structures (square, honeycomb, and no barriers) through experimental tests to determine The temperature field distribution trends and rules of different reactor internal structures are analyzed. The results show that the square structure reactor has the fastest internal temperature change rate and the best heat exchange effect. The comprehensive performance of the square structure reactor under different hydrogen absorption pressures and hydrogen release flow rates was further studied. The results show that when the inlet pressure is 2.0 MPa to 3.0 MPa, the hydrogen absorption amount and hydrogen absorption rate of the alloy material can be significantly increased; when the hydrogen release flow rate is less than 3.2 L/min, more than 85% of hydrogen can be released. The research results can provide technical guidance for modular and systematic design.

Key words: Metal hydride hydrogen storage, Heat exchange fins, Hydrogen storage structure, Temperature change, Flow change

中图分类号:

TQ052.5

李丁健, 刘春枝, 赵立前, 刘学武. 金属氢化物反应器结构对储氢性能影响研究[J]. 辽宁石油化工大学学报, 2023, 43(6): 37-43.

Dingjian LI, Chunzhi LIU, Liqian ZHAO, Xuewu LIU. Influence of Internal Structure of Metal Hydride Reactor on Hydrogen Storage Performance[J]. Journal of Liaoning Petrochemical University, 2023, 43(6): 37-43.

图/表 12

图1 测试反应器吸/放氢过程中温度场和流量变化的实验流程

图2 反应器内部结构及整体外观

表1 吸/放氢测试操作参数

参数	数值
反应器初始温度/℃	20.0
氢气供应压力/MPa	0.5～3.0
反应器外半径/mm	76
反应器高度/mm	240
壁面导热系数/（W·m^－1·K^－1）	16.2
LaNi₅导热系数/（W·m^－1·K^－1）	1.5
翅片导热系数/（W·m^－1·K^－1）	16.2

图3 两种结构反应器在200 s时的内部温度分布云图

图4 两种结构反应器参考点的温度变化曲线

图5 三种结构反应器的测试结果

表2 不同内部结构反应器吸氢结束时温度和吸氢最高温度

反应器类型	吸氢结束时温度/℃			吸氢最高温度/℃
反应器类型	T₁	T₂	T₃	T₁	T₂	T₃
蜂窝结构	42.5	60.2	51.7	76.2	72.1	73.1
方形结构	41.0	43.8	32.5	80.6	81.9	79.4
无隔层	66.1	80.1	60.9	85.3	85.7	85.7

图6 不同结构反应器在不同水浴温度下的放氢量和温度变化曲线

图7 在20.0 ℃的水浴温度下放氢速率对不同结构反应器温度的影响

图8 进气压力对方形结构反应器吸氢性能的影响

图9 不同放氢速率下方形结构反应器的放氢性能

图10 不同放氢速率下方形结构反应器外壁面温度变化

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金属氢化物反应器结构对储氢性能影响研究

Influence of Internal Structure of Metal Hydride Reactor on Hydrogen Storage Performance

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