Experimental study on extinguishing dense stacking fire with temperature sensitive P (NIPAm/AA-Na) gel aqueous solution

doi:10.16265/j.cnki.issn1003-3033.2017.10.010

Abstract

Abstract: In order to extinguish the dense stacking fire effectively, based on the previous synthesis experiment, contrast tests on extinguishing dense stacking fire were carried out with temperature sensitive P (NIPAm/AA-Na) gel aqueous solution and water respectively. The stacking used in the tests was densified based on Water Beased Extinguishing Agent standard of fire rating for 1A stacking. The results of the tests show that the dense stacking fire was extinguished successfully with P (NIPAm/AA-Na) gel aqueous solution, that the flame extinguishing time, the extinguishing time and the video fire extinguishing time recorded when the P (NIPAm/AA-Na) gel aqueous solution is used as the extinguishing agent are all significantly shorter than water those recorded when water is used as the extinguishing agent under the same conditions, that a sol/gel phase transition occurs when the temperature sensitive P (NIPAm/AA-Na) gel water solution is used, and that no new toxic gas is detected during the fire extinguishing process with the temperature sensitive P (NIPAm/AA-Na) gel aqueous solution.

Key words: dense stacking, temperature sensitive, extinguishing agent, extinguishing time, fire suppression efficiency

CLC Number:

X932

JIA Chunlei. Experimental study on extinguishing dense stacking fire with temperature sensitive P (NIPAm/AA-Na) gel aqueous solution[J]. China Safety Science Journal, 2017, 27(10): 56-61.

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