综合管廊弯道处掺氢天然气爆炸特性及控爆措施

doi:10.16265/j.cnki.issn1003-3033.2026.07.0828

中国安全科学学报 ›› 2026, Vol. 36 ›› Issue (7): 144-152.doi: 10.16265/j.cnki.issn1003-3033.2026.07.0828

综合管廊弯道处掺氢天然气爆炸特性及控爆措施

曹娇娇¹(), 吴建松¹^,^**(), 姚卫²^,³

¹ 中国矿业大学(北京) 应急管理与安全工程学院, 北京 100083
² 中国科学院力学研究所空天飞行高温气动全国重点试验室, 北京 100190
³ 中国科学院大学工程科学学院, 北京 100049

收稿日期:2026-02-28 修回日期:2026-05-22 出版日期:2026-07-28
通信作者:
^**吴建松(1985—),男,河北邯郸人,博士,教授,主要从事城市公共安全方面的研究。E-mail: jiansongwu@hotmail.com。
作者简介:
曹娇娇 (1997—),女,河北邢台人,博士研究生,主要研究方向为综合管廊燃气爆炸与气体爆炸数值仿真。E-mail:caojjiao@163.com。
姚卫, 研究员
基金资助:
中央高校青年教师科研创新能力支持项目(ZYGXQNJSKYCXNLZCXM-E17)

Explosion characteristics and explosion control measures of hydrogen-enriched natural gas in curved sections of utility tunnels

Cao Jiaojiao¹(), Wu Jiansong¹^,^**(), Yao Wei²^,³

¹ School of Emergency Management and Safety Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China
² State Key Laboratory of High Temperature Gas Dynamics, Institute of Mechanics, Chinese Academy of Science, Beijing 100190, China
³ School of Engineering Science, University of Chinese Academy of Science, Beijing 100049, China

Received:2026-02-28 Revised:2026-05-22 Published:2026-07-28

摘要/Abstract

摘要：

为解决含转向弯道综合管廊燃气舱掺氢天然气泄漏爆炸传播特性不明、防控方法低效等问题,采用自主研发的管廊爆炸缩尺试验系统、OpenFOAM数值模拟仿真技术和爆炸动力学理论,研究转向弯道对爆炸传播特性的影响及弯道处爆炸控制方法。结果表明:高含氢量的掺氢天然气在转向弯道附近爆炸威力激增;管廊转向前爆炸超压峰值随转向角增大而增大,转向后则相反;大角度弯道对转向后管廊结构具有保护作用;管廊转向弯道处激波绕射形成弱化学反应区,随转向角度增大演变为三角高压区;弯道泄压口在直角弯道下控爆效率最高达到73.33%,水喷淋系统为50.21%,吸能材料为16.31%。

关键词: 综合管廊, 弯道, 掺氢天然气, 爆炸特性, 控爆措施

Abstract:

The problems of unclear laws of hydrogen-enriched natural gas explosion propagation in the gas compartment in curved utility tunnels and inefficient explosion prevention and control methods were addressed. To achieve this, a scaled explosion experimental system, numerical simulation technology (OpenFOAM), and explosion dynamics theory were designed. The influence of turning bends on explosion propagation characteristics was studied. The explosion control mechanisms of explosion control methods at bends were analyzed. The results show that the explosion power of hydrogen-enriched natural gas with rich hydrogen surges near turning bends. The explosion overpressure peak before the tunnel turns is increased with the increase of the turning angle, while it is the opposite after turning. The tunnel structure after turning is protected by the large-angle bends. Shock wave diffraction is formed at the turning bends of the tunnel, and the formation of a weak chemical reaction zone is led to, and a triangular high-pressure zone is formed at the turning point with the increase of the turning angle. Therefore, the bend and the tunnel structure after turning can be effectively protected by setting explosion control measures at bends. Among them, the highest explosion control efficiency of the explosion vent at the bend is as high as 73.33%. The highest explosion control efficiency of the water spray system is 50.21%, while the highest explosion control efficiency of the energy-absorbing material is 16.31%. A reference basis for the layout strategy of explosion consequence control measures in the gas compartment at curved utility tunnels can be provided by the research results.

Key words: utility tunnels, curve, hydrogen-enriched natural gas, explosion charcteristics, explosion control measures

中图分类号:

X932爆炸安全与防火、防爆

曹娇娇, 吴建松, 姚卫. 综合管廊弯道处掺氢天然气爆炸特性及控爆措施[J]. 中国安全科学学报, 2026, 36(7): 144-152.

Cao Jiaojiao, Wu Jiansong, Yao Wei. Explosion characteristics and explosion control measures of hydrogen-enriched natural gas in curved sections of utility tunnels[J]. China Safety Science Journal, 2026, 36(7): 144-152.

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综合管廊弯道处掺氢天然气爆炸特性及控爆措施

Explosion characteristics and explosion control measures of hydrogen-enriched natural gas in curved sections of utility tunnels

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