Influence of Compressed Air Foam Extinguishing System on The Performance of Aqueous Film-Forming Foam Extinguishing Agent

Weidong Xiong; Bangqi Yin; Jiancheng Zhang; Liusuo Wu; Bin Xu; Jianfei Luo; Xiaoxiao Cheng

doi:10.54097/nj04y058

Authors

Weidong Xiong
Bangqi Yin
Jiancheng Zhang
Liusuo Wu
Bin Xu
Jianfei Luo
Xiaoxiao Cheng

DOI:

https://doi.org/10.54097/nj04y058

Keywords:

Compressed air foam fire extinguishing system, Aqueous film forming foam extinguishing agent, Gas-liquid ratio, mixture ratio

Abstract

According to the national standard, the relationship between the expansion, the drainage time and the gas-liquid ratio of the water-formed film foam extinguishing agent under different mixture ratio was investigated experimentally by using the gas-liquid two-phase foam gun. The results show that with the increase of gas-liquid ratio, the foaming multiple of water-formed foam first increases rapidly and then tends to a stable value. 25% drainage time first increases and then decreases and finally tends to a stable value. With the increase of mixture ratio, the expansion and 25% drainage time of the water-formed film foam extinguishing agent all increase, which has a significant effect on its performance.

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References

[1] GB 15308-2006, Foam extinguishing agent [S].

[2] GB 27897-2011, Class A foam extinguishing agent [S].

[3] Ye Honglie, Fu Xuecheng, Hu Yingnian. Study on SD-AFFF type water film foam extinguishing agent [J]. Fire Science and Technology, 2001, 20(4):36-38.

[4] Ma Xinxia, Yuan Yichao, LIU Yuzheng. Experiment of Multi-nozzle gas-liquid Two-phase injection Process [J]. Chinese Journal of Mechanical Engineering, 2011, 47 (22):147-152.

[5] Ge Xiaoxia, Gao Jian, Zhao Hao, Flow Characteristics Analysis of Compressed Air Foam Tube [J]. Fire Protection Science and Technology, 2016, 35 (10):1408-1411.

[6] Zhang Qiang, Tong Mingwei, Liu Bin. Ejection Performance test of jet self-priming liquid-gas two-phase flow jet pump [J]. Journal of Drainage and Irrigation Mechanical Engineering, 2010, 28 (6):461-464.

[7] Lin Lin, Weng Tao, Fang Yudong. Analysis of liquid evolution process of compressed air foam [J]. Journal of University of Science and Technology of China, 2007, 37 (1):70-76.

[8] Chen Xiantao, Jia Jingyun, He Yuanhua, Meng Yawei. Experimental study on the effect of gas-liquid ratio on the performance of water-formed film foam fire extinguishing agent [J]. Fire Science and Technology, 2016, 35(03) :404-407.