A hydrogen piping explosion test device considering soil environment and defects of piping and non-piping elements

By designing a hydrogen pipeline explosion test device that takes into account the soil environment and defects in pipeline/non-pipeline components, the problem that existing devices cannot simulate the soil constraint of real buried pipeline failure was solved. This enabled the assessment of the multi-factor explosion damage law and safety of hydrogen pipeline network systems and provided detailed experimental data.

CN122409749APending Publication Date: 2026-07-17SOUTHWEST PETROLEUM UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTHWEST PETROLEUM UNIV
Filing Date
2026-04-23
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing hydrogen pipeline explosion test equipment cannot simulate the complex soil-constrained environment after the failure of real buried pipelines, and cannot effectively study the fragmentation morphology and failure mode of defective pipelines and non-pipeline components under explosive loads.

Method used

A hydrogen pipeline explosion test device was designed, taking into account soil environment and pipeline/non-pipeline component defects. It includes a gas distribution and intake system, a simulated detonation pipeline system, an environmental simulation chamber system, and a comprehensive monitoring system. It can simulate different soil slopes, explosion source distances, and pipeline defects, and observe the physical parameters and flame morphology during the explosion process.

Benefits of technology

This study enabled a quantitative investigation of the explosion behavior of hydrogen pipeline systems under complex soil constraints, comprehensively covering the explosion damage patterns and safety assessments of various pipeline defects and non-pipeline components, and providing reliable experimental data support.

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Abstract

本发明公开了一种考虑土壤环境与管道及非管元件缺陷的氢气管道爆炸试验装置,属于可燃气体燃爆安全技术领域。该装置主要由配气进气系统、模拟爆轰管道系统、环境模拟箱系统和综合监测系统组成。其特征在于:模拟爆轰管道系统末端采用模块化设计,可灵活替换含初始缺陷、氢损伤的试样管段以及典型复杂非管元件;环境箱创新性地配备了包含刻度滑轨与可旋转挡板的可拆卸式仿形定位组件,实现了元件双侧不同土壤坡度与爆源距离的快速定量定位,且组件移出后能保证纯土体零流场干涉。结合红外成像与多维传感网络,本发明能够真实还原并定量研究多形态管网节点在复杂土壤约束下的爆炸形貌与失效规律,具有测试覆盖广、定量精度高、可视化程度好等优点。
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