中国安全科学学报 ›› 2019, Vol. 29 ›› Issue (10): 64-70.doi: 10.16265/j.cnki.issn1003-3033.2019.10.010

• 安全工程技术科学 • 上一篇    下一篇

正压式泡沫灭火技术的研究进展

邓天刁1, 刘长春**1 讲师, 黄林远1, 申金华2 工程师   

  1. 1 西安科技大学 安全科学与工程学院,陕西 西安 710054;
    2 河北安工消防科技股份有限公司,河北 廊坊 065001
  • 收稿日期:2019-07-20 修回日期:2019-09-06 出版日期:2019-10-28 发布日期:2020-10-27
  • 通讯作者: ** 刘长春(1982—),男,河北邯郸人,博士,讲师,主要从事火灾动力学及清洁灭火技术研究。E-mail:keepspring@xust.edu.cn。
  • 作者简介:邓天刁 (1994—),女,贵州遵义人,硕士研究生,研究方向为泡沫灭火技术。E-mail:2529182755@qq.com。
  • 基金资助:
    国家自然科学基金青年基金资助(51604215);陕西省自然科学基础研究计划项目(2018JM5078);中国博士后科学基金面上项目资助(2016M590962)。

Research progress of positive pressure foam extinguishing technology

DENG Tiandiao1, LIU Changchun1, HUANG Linyuan1, SHEN Jinhua2   

  1. 1 College of Safety Science and Engineering, Xi'an University of Science and Technology, Shaanxi Xi'an 710054, China;
    2 Hebei Angong Fire Protection Science &Technology Co. Ltd., Langfang Hebei 065001, China
  • Received:2019-07-20 Revised:2019-09-06 Online:2019-10-28 Published:2020-10-27

摘要: 为使正压式泡沫灭火技术运用和推广更广泛,综述正压泡沫灭火技术的研究现状。首先总结正压式泡沫灭火技术的应用优势和几种气液混合室的优缺点;其次归纳气液混合室里的扰流器类型和气源供给方式;最后概述与评价正压式泡沫的灭火性能和管内流动特性方面的主要研究。结果表明:气液两相在同轴混合室和锥形扰流器中混合最充分;液氮气源供给方式的发泡能力最强,吸气式气源供给方式发泡能力最弱;国内外对泡沫灭火性能的研究主要集中于灭火类别和泡沫剂种类,对于管内泡沫流动特性研究集中于泡沫流变性和泡沫在管内的阻力损失2方面。

关键词: 正压, 泡沫, 气液混合室, 扰流器, 泡沫性能, 泡沫流体

Abstract: For the sake of wider application and promotion of positive pressure foam extinguishing technology, current researches on this technology are reviewed. Firstly, application advantages of the technology and both advantages and disadvantages of several gas-liquid mixing chambers were summarized. Secondly, types of spoilers and gas supply modes in gas-liquid mixing chambers were summarized. Finally, major studies on extinguishing performance and flow characteristics of positive pressure foam were outlined and evaluated.The results show that gas-liquid two-phase flow is most fully mixed in coaxial mixing chambers and conical spoilers, and liquid nitrogen source supply mode has the strongest foaming ability while aspirating gas source supply mode has the weakest one. Researches on foam extinguishing performance both at home and abroad mainly focus on fire extinguishing categories and foaming agent types, and those on flow characteristics of foam in tubes concentrate on foam rheology and its resistance loss.

Key words: positive pressure, foam, gas-liquid mixing chamber, spoiler, foam performance, foam fluid

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