Abstract:

A series of dry water fire extinguishing agents coated with functional chemical fire extinguishing components are designed and prepared, and the effects of different functional chemical fire extinguishing components on the bulk density and structural stability of dry water fire extinguishing agents under high pressure are studied. The results show that the bulk density of dry water fire extinguishing agent is 0.348 0 ~ 0.437 3 g/mL; dry water fire extinguishing agent below 150 μm has better pressure resistance; the addition of different fire extinguishing components has no obvious influence on the pressure resistance, but the addition of gelling agent can significantly improve the structural stability of the dry water fire extinguishing agent, so that it can maintain the original stable structure under high pressure. The research results are of great significance to the promotion and use of dry water extinguishing agents.

Key words: dry water, fire extinguishing agent, fire extinguishing component, bulk density, pressure resistance