关于气液同轴喷气泡发生器及其发泡特征的研究
Caiyuan Lu1,2, Xiaoxing Zhong1,2, Mujun Chen1,2
1Key Laboratory of Gas and Fire Control for Coal Mines, Ministry of Education, China University of Mining and Technology, Xuzhou 221116, China.
ACS omega
|July 29, 2024
概括
一个新的空气液体同轴泡发电机通过实现高泡膨胀率 (FER) 和范围来改善压缩空气泡系统 (CAFS). 在12.4 m3/h的液体流速下观察到最佳性能,提供更好的防火解决方案.
科学领域:
- 消防安全工程 消防安全工程
- 流体动力学 流体动力学
- 材料科学 材料科学 材料科学
背景情况:
- 现有的压缩空气泡系统 (CAFS) 面临着低泡膨胀率 (FER) 和有限范围的挑战.
- 提高FER和运行范围对于有效的灭火至关重要.
研究的目的:
- 为CAFS设计和评估一种新的空气液体同轴泡发电机.
- 通过提高泡膨胀率 (FER) 和输出动量来解决现有系统的局限性.
- 调查各种操作参数对泡生成性能的影响.
主要方法:
- 气液同轴喷气泡发生器的实验分析.
- 参数的系统变化,包括液体流量,气体流量和泡输出端直径.
- 评估关键性能指标:FER,泡半衰期,范围,泡体积和压缩空气利用率.
主要成果:
- 在液体流速为12.4 m3/h的情况下,可以达到最佳的泡性能.
- 起初泡性能上升,然后随着固定的气体流速而增加的液体流速 (8-18 m3/h) 下降.
- 当液体体积超过12.4 m3/h时,增加空气供应量会提高性能;在这个值以下,它不会提高性能.
- 发泡室直径显示了与性能的非单调关系,表明存在最佳值.
结论:
- 与类似设备相比,气液同轴喷气泡发电机表现出优越的FER和范围.
- 这种新型发电机为防火应用提供了显著的优势,特别是在狭窄的空间.
- 这些发现为优化CAFS技术以提高灭火能力提供了宝贵的见解.
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