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 ›› 2025, Vol. 44 ›› Issue (4): 518-524.

• • 上一篇    

HFO-1234yf和几种干粉灭火剂协同灭火试验研究

张涵, 舒中俊, 吴洁, 邢志祥   

  1. （常州大学 安全科学与工程学院，江苏 常州 213164）
  • 收稿日期:2024-06-03 修回日期:2024-08-27 出版日期:2025-04-15 发布日期:2025-04-15
  • 作者简介:张 涵，常州大学安全科学与工程学院硕士研究生，主要从事阻燃防火材料及技术、灭火剂及灭火技术、火灾事故调查技术研究，江苏省常州市武进区滆湖中路1号，213164。
  • 基金资助:
    中国石油-常州大学创新联合体资助项目（2021DQ06）

Experimental study on cooperative fire extinguishing of HFO-1234yf and several dry powder fire extinguishing agents

Zhang Han, Shu Zhongjun, Wu Jie, Xing Zhixiang   

  1. (School of Safety Science and Engineering, Changzhou University, Changzhou Jiangsu 213164, China)
  • Received:2024-06-03 Revised:2024-08-27 Online:2025-04-15 Published:2025-04-15

摘要： 随着《基加利修正案》的实施，以七氟丙烷为代表的具有较高GWP的HFCs气体灭火剂将被限制使用，新型替代灭火剂的开发研究具有现实意义。绿色环保型制冷剂HFO-1234yf作为含氟烯烃类化合物，也属于替代灭火剂的筛选范围。采用杯式燃烧器测定HFO-1234yf熄灭正庚烷火焰的临界灭火体积分数为11.4%，为提高其灭火效能，选用KHCO3、NaHCO3和ABC干粉分别与其复配，开展气固混合灭火研究。结果表明，HFO-1234yf气体和3种粉体之间均表现出不同的协同作用，且分别在粉体质量浓度为40.2、55.1、67.4 g/m3时协同效果最佳，对应的协同因子峰值分别为0.884 8、0.892 6、0.931 0。将合适的干粉灭火剂与HFO-1234yf复配使用，可以降低HFO-1234yf的灭火浓度，提高其灭火效能。

关键词: HFO-1234yf, 杯式燃烧器, 复合灭火剂, 干粉灭火剂, 协同灭火

Abstract: With the implementation of the Kigali Amendment, HFCs gas fire extinguishing agents with high GWP, represented by HFC-227ea, will be restricted from use. Therefore, the research on alternatives to such fire extinguishing agents is of practical significance. The green and environmentally friendly refrigerant HFO-1234yf, as a fluorine-containing olefin compound, also belongs to the screening range of alternative fire extinguishing agents. In this paper, the critical extinguishing volume fraction of HFO-1234yf to extinguish the n-heptane flame is 11.4% by using a cup burner. To improve its fire extinguishing efficiency, KHCO3, NaHCO3 and ABC dry powder are used to carry out the mixed fire extinguishing research of gas and solid, respectively. The results show that there are different synergies between HFO-1234yf gas and the three powders, and the synergies are the best when the powder mass concentration is 40.2, 55.1 g/m3 and 67.4 g/m3, and the corresponding peak synergies are 0.884 8, 0.892 6 and 0.931 0, respectively. The combination of suitable dry powder extinguishing agent and HFO-1234yf can reduce the extinguishing concentration of HFO-1234yf and improve its extinguishing efficiency.

Key words: HFO-1234yf, cup burner, composite extinguishing agent, dry powder extinguishing agent, coordinated fire fighting