Kireev A. Gel-forming firefighting and fireresistance means of raised efficiency to fire class A

This dissertation consider the problem increase of efficiency of suppression of fires of a class A by the means of gel-forming fire extinguishing means (GFM). GFM secure cardinally to solve a problem of the big losses of liquid fire extinguishing means. They consist of two separately save and simultaneously submitted solutions. Components of these two solutions steal up so that at their mixture the composition was formed not fluid gel. For achievement of high efficiency of a firefighting components GFM are necessary for picking up to provide high cooling action, high inhibitory, isolating and flegmatisation properties. For a choice of the most effective GFM experimental researches of concentration areas fast gel-forming carbonate, hydroxyl, phosphate, borate, plaster and silicate systems (34 systems) have been spent. It is established that the greatest possibilities in increase firefighting properties give silicate systems. They have wide area of fast gel-forming, them gel-like layers have high durability and good adhesion to different materials. On the basis of theoretical and experimental researches is established that the greatest real cooling action show the systems containing salts of ammonium, especially (NH4)2SO4 and NH4H2PO4. Also it is shown that introduction of NH4H2PO4 in greatest degree raises inhibitory properties of GFM. By results of suppression of laboratory model seats of fire of a class A it is established that maximum of firefighting abilities have GFM (NH4)2SO4(5%)+NH4Н2РО4(22%)+Na2O·2,7SiO2(12%). GFM CaCl2(42%)+ +Na2O·2,7SiO2 (28%) shows advantage on operative fireproof properties. Autonomous device of a firefighting by means of GFM with hydraulic and pneumatic disperse of components are designed and made. Based on the results of theoretical and experimental researches recommendations for use GFM by operatively-saving and suppression of fires was work out.