Improving the Quenching of the Undercarriage Space due to the Adhesive Properties of Gel-Forming Compositions

Abstract

The issue of increasing the technological and technical capabilities of firefighting undercarriage space at subway stations due to more efficient, due to adhesion to the burning surfaces of gel-forming compositions is considered. It is proposed to use a special cart to deliver the gel-forming system Na2O·2,95SiO2 – CaCl2 to hard-to-reach locations of electromechanical and other equipment of electric trains. The analysis of these experiments is carried out by comparing the time and mass of spent gel-forming compositions, water, fire-extinguishing powder when extinguishing model hearths close to the real undercarriage space. It is determined that due to the adhesion of the gel to the surface of the combustible substance, it is possible to reduce the loss of extinguishing agent in comparison with water or extinguishing powder