排气方向对液化天然气管道爆炸压力的影响分析
Haipu Bi1, Yujie Cao1, Wei Mao1
1School of Safety Science and Engineering, Changzhou University, Changzhou, Jiangsu 213164, China.
ACS omega
|April 8, 2024
概括
液化石油气 (LPG) 管道的水平通风大大降低了爆炸压力和峰值压力到达时间. 垂直通风效率较低,这凸显了通风方向在管道安全方面的重要性.
科学领域:
- 工程 工程师 工程师 工程师
- 安全科学安全科学 安全科学
- 流体动力学 流体动力学
背景情况:
- 液化石油气 (LPG) 管道容易发生爆炸事故.
- 了解爆炸压力动态对于管道安全和设计至关重要.
- 爆炸通风口的方向可以显著影响压力降低.
研究的目的:
- 调查通风方向对液化天然气管道爆炸压力的影响.
- 分析不同通风配置的压力场和峰值压力变化.
- 为优化液化天然气管道布局和安全措施提供见解.
主要方法:
- 在管道模型中对爆炸事故场景的实验测试.
- 数字模拟不同方向的爆炸通风.
- 压力场随时间的推移和峰值压力分布的分析.
主要成果:
- 水平通风有效降低垂直和水平分支的压力,峰值压力降低高达73.55%.
- 垂直通风显示水平分支的压力减少有限,但垂直分支的压力显著减少.
- 爆炸通风减少了主要管道的峰值压力到达时间.
- 在两种通风配置中都观察到负压区,其范围和位置各不相同.
结论:
- 爆炸通风的方向对液化天然气管道压力降低的有效性产生了重大影响.
- 与垂直通风口相比,水平通风口提供了更好的保护.
- 这些发现有助于优化液化天然气管道设计,通风位置和材料选择,以提高安全性.
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