| 王莉莉,胡芳问,王启利,付世博,马松浩,齐晗兵,高兆基,王玉锐.高压天然气管道喷射火危害研究[J].火灾科学,2025,34(1):30-39. |
| 高压天然气管道喷射火危害研究 |
| Study of jet fire hazards in high-pressure natural gas pipelines |
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| DOI：10.3969/j.issn.1004-5309.2025.01.04 |
| 基金项目:黑龙江省“揭榜挂帅”科技攻关项目(2023ZXJ06A04) |
| 作者 | 单位 | | 王莉莉 | 1.东北石油大学土木建筑工程学院,大庆,163318
2.黑龙江省寒区新能源热利用及防灾减灾重点实验室,大庆,163318 | | 胡芳问 | 1.东北石油大学土木建筑工程学院,大庆,163318
2.黑龙江省寒区新能源热利用及防灾减灾重点实验室,大庆,163318 | | 王启利 | 3. 吉林石油集团有限责任公司劳务服务公司,松原,138000 | | 付世博 | 1.东北石油大学土木建筑工程学院,大庆,163318
2.黑龙江省寒区新能源热利用及防灾减灾重点实验室,大庆,163318 | | 马松浩 | 4. 中国石油天然气股份有限公司东北销售分公司,大庆,163711 | | 齐晗兵 | 1.东北石油大学土木建筑工程学院,大庆,163318
2.黑龙江省寒区新能源热利用及防灾减灾重点实验室,大庆,163318 | | 高兆基 | 1.东北石油大学土木建筑工程学院,大庆,163318
2.黑龙江省寒区新能源热利用及防灾减灾重点实验室,大庆,163318 | | 王玉锐 | 3. 吉林石油集团有限责任公司劳务服务公司,松原,138000 |
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| 中文关键词: 天然气泄漏 喷射火 损伤半径 热辐射 |
| 英文关键词:Gas pipeline leakage Jet flame Damage radius Thermal radiation |
| 摘要点击次数: 1631 |
| 全文下载次数: 46 |
| 中文摘要: |
| 针对高压天然气管道小孔泄漏条件下的喷射火事故,基于气体射流固体火焰计算理论,建立了考虑泄漏孔径、输送压力、环境温度和风速影响的管道喷射火热辐射模型。参数化求解高压天然气管道小孔泄漏在不同工况下开放空间射流状态的喷射火焰热辐射危害,分析得到基于热通量准则的伤害半径。结果表明,泄漏孔径和管道运行压力是影响高压天然气管道小孔泄漏喷射火焰热辐射危害范围的主要因素,当它们分别在0.02 m~0.28 m和5 MPa~12 MPa范围时,安全救援半径扩大至111.0 m;随着环境温度的降低,安全救援半径逐渐增大,但当环境温度降低至0 ℃以下时即不再产生明显变化;随着风速的增大,安全救援半径先增大后减小,从计算结果判断,当风力大于12.3 m/s后不再存在喷射火灾风险。 |
| 英文摘要: |
| To address the jet fire accidents caused by small-hole leaks in high-pressure natural gas pipelines, a thermal radiation model for pipeline jet fires has been established based on the gas jet and solid flame calculation theory. This model considers the effects of leakage diameter, transport pressure, ambient temperature, and wind speed. The harm radius based on the heat flux criterion was analyzed by parametrically solving the thermal radiation hazard of jet fires under various operating conditions in open spaces for small-hole leaks in high-pressure natural gas pipelines. The results show that leakage diameter and pipeline operating pressure are the main factors influencing the thermal radiation hazard range of jet flames from small-hole leaks in high-pressure natural gas pipelines. When they range from 0.02 m to 0.28 m and 5 MPa to 12 MPa, respectively, the safe rescue radius expands to 111.0 m. The safe rescue radius gradually increases as the ambient temperature decreases, but no significant change occurs when the temperature drops below 0 ℃. With increasing wind speed, the safe rescue radius first increases and then decreases. According to the calculation results, when the wind speed exceeds 12.3 m/s, there is no longer a risk of jet fire. |
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