地下规模化储氢衬砌混凝土渗透性试验方法

Permeability Test Method for Underground Large-Scale Hydrogen Storage Lining Concrete

摘要: 地下规模化储氢一般是指利用地下盐穴、枯竭油气藏和含水层等地下自然封闭空间或地质构造储存高压氢气，但这类地下空间对岩层条件要求极高，在未来可能会限制氢能源储存位置的选址。人工地下结构是较为常见的工程结构，如确保其密封性，可将其用于地下规模化储氢。高性能混凝土凭借其极低的气体渗透性可用于人工地下规模化储氢的衬砌材料。但目前尚无专门用于这类材料的氢气渗透试验装置，本文通过分析对比现有混凝土的渗透性试验方法，提出用于高性能混凝土材料的氢气渗透试验方法。

Abstract: Underground large-scale hydrogen storage generally refers to the use of underground salt caverns, depleted oil and gas reservoirs, aquifers and other underground natural closed spaces or geological structures to store high-pressure hydrogen, but this type of underground space has extremely high requirements for rock conditions, which may limit the location of hydrogen energy storage in the future. Artificial underground structures are relatively common engineering structures. If their sealing is ensured, they can be used for underground large-scale hydrogen storage. High-performance concrete can be used as artificial underground large-scale hydrogen storage lining materials due to its extremely low gas permeability. However, there is currently no hydrogen permeation test device specifically used for this type of material. This paper analyzes and compares the existing concrete permeability test methods and proposes a hydrogen permeation test method for high-performance concrete materials.