主管：中华人民共和国应急管理部
主办：应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU
消防科学与技术

消防科学与技术 ›› 2026, Vol. 44 ›› Issue (1): 163-167.

• • 上一篇    下一篇

水凝胶灭火剂固液混合器引射特性试验及预测研究

胡成1,2,3, 冯宗蕊1,2,3, 张宪忠1,2,3, 柯鑫1,2,3   

  1. （1.应急管理部天津消防研究所，天津 300381； 2.工业与公共建筑火灾防控技术应急管理部重点实验室，天津 300381； 3.天津市消防安全技术重点实验室，天津 300381）
  • 收稿日期:2024-08-12 修回日期:2024-10-12 出版日期:2026-01-15 发布日期:2026-01-15
  • 作者简介:胡 成，应急管理部天津消防研究所副研究员，主要从事消防技术、灭火系统研究，天津市南开区卫津南路110号，300381。
  • 基金资助:
    国家重点研发计划项目（2022YFC3004905）；应急管理部天津消防研究所基科费项目（2022SJZYZ J05）

Experimental and predictive investigations on the ejection characteristics of the solid-liquid mixer of hydrogel fire extinguishing agent

Hu Cheng1,2,3, Feng Zongrui1,2,3, Zhang Xianzhong1,2,3, Ke Xin1,2,3   

  1. (1. Tianjin Fire Science and Technology Research Institute of MEM, Tianjin 300381, China; 2. Key Laboratory of Fire Protection Technology for Industry and Public Building, Ministry of Emergency Management, Tianjin 300381, China; 3. Tianjin Key Laboratory of Fire Safety Technology, Tianjin 300381, China)
  • Received:2024-08-12 Revised:2024-10-12 Online:2026-01-15 Published:2026-01-15

摘要： 森林灭火作战中，水凝胶灭火剂可有效提高灭火用水的利用率和灭火效果。目前，基于水凝胶灭火剂的固液混合装置的相关研究较少，且缺乏准确可靠的预测模型。本文通过试验研究，评估了入口工况和几何结构对文丘里式固液混合器水凝胶灭火剂引射特性的影响。结果表明，固液混合器的引射系数与工作流体入口速度呈正相关关系，固液混合器的混合效率随喷嘴出口直径或固体颗粒入口直径的增大而提高。此外，混合效率随工作流体入口速度的增大呈现先增大后减小的变化趋势。基于试验结果，采用Buckingham’s Π定理建立了水凝胶灭火剂固液混合器引射特性的预测模型，为水凝胶灭火剂固液混合装置的设计提供理论依据。

关键词: 水凝胶灭火剂, 固液混合器, 引射特性, 预测模型

Abstract: Hydrogel fire extinguishing agents can remarkably increase the utilization rate of water and improve fire extinguishing performance in forest fire fighting. At present, there is little research on solid-liquid mixing devices based on hydrogel fire extinguishing agents, and there is a lack of accurate and reliable prediction models. In this study, experiments have been conducted to evaluate the effects of inlet operating conditions and geometric structure on the ejection characteristics of Venturi-type solid-liquid mixer for hydrogel fire extinguishing agents. The results show that the ejection coefficient of the solid-liquid mixer is positively correlated with the inlet velocity of the working fluid. The mixing efficiency of the mixer increases with the increase of the nozzle outlet diameter or the inlet diameter of solid particles. Additionally, the mixing efficiency shows a trend of first increasing and then decreasing with the increase of the working fluid inlet velocity. Based on the experimental results and Buckingham's Π theorem, a prediction model for the ejection characteristics of the solid-liquid mixer for hydrogel fire extinguishing agents is established to provide a theoretical basis for the design of solid-liquid mixing devices based on hydrogel fire extinguishing agents.

Key words: hydrogel fire extinguishing agent, solid-liquid mixer, ejection characteristics, prediction model