The New Research Of The Hot Gas Sol Fire Extinguishing

In view of the present reality of defects using commercially available hot gas sol fire extinguishing agent, adjusting the formula composition, optimizing composition properties, the introduction of innovative material contain potassium picrate with dicyandiamide collocation, a compound combustible agent, the agent combustion performance. Through the fire extinguishing time, burning time and residual rate characterization methods, such as has been proved that using this formula is feasible. The addition of potassium picrate, can significantly reduce the agent attack effectiveness, appropriate to add the range of 10%～10%. Analyze the iron box fire extinguishing experiment concluded that the concentration of enough aerosol fire extinguishing the premise of success. Experimental comparison, select the phenolic resin as adhesive. Using orthogonal experiment method, it is concluded that potassium picrate parameters 1, strontium carbonate, sodium oxalate 13 parameters and stearic acid 1, agent attack efficiency is highest, no obvious Mars combustion, not second ignition and burn out the vent.To thermal decomposition weightlessness tests of formula, it is concluded that agents about reaction, the start of the 250 ℃ to 1170 ℃ over, the entire process quality drop nearly 58%. By X-ray diffraction analysis of product mainly for SrO, SrCO3, Sr (NO3) 2, K2O.Combustion phenomena of the extinguishing agent under different pressure charge density were analyzed, and it is concluded that the linear combustion speed decreases with increasing density, suitable drug density of 1.7 g/cm3 Density is too low, medicament is spun phenomenon; High density could lead to kill. Through performance test, corrosion product on the corrosion rate of copper foil are less than 0.1 g/(m2·h.), for corrosion resistance. Fire extinguishing agent with low mechanical sensitivity and conform to the safety production needs. Products have no obvious adverse effects on living things.Homemade fire, flame first appeared in the process of extinguishing the open environment after decreases phenomenon is analyzed, concluded that fire extinguishing agent flow of oil steam volatile blow. Fire bar Angle and distance appropriate to the brazier fire is the premise of success. Hot gas sol fire extinguishing agent in the open environment, suitable to extinguish dot fire, a wide range of fire.