| 摘要 |
FIELD: provision of safe service of engineering structures in the conditions of their icing. ^ SUBSTANCE: the method consists in action of an explosion of a cloud of fuel-air mixture on the structure that covers the ice coated structure or a part of it. Ignition explosive charge with mass d=alphaTex/m, kg in the trinitrotoluene equivalent are placed in the area of spraying with density sigmas.c.h3>m>=sigmaih3, piece/m, where sigmai -the strength of ice adhesion, MPa; sigmas.c. - the maximum permissible pressure on the structure components, MPa; h-the mean thickness of ice coating, m; T-the fuel ignition temperature, ; alpha - the rated coefficient of ignition of the fuel-air mixture by the air shock waves, and connected to the circuit of simultaneous blasting. After that the mass of liquid fuel M=0,23srhoN/n, kg in a mix with a dye is sprayed, where S-the stoichiometric concentration of fuel; rho- the air density in the area of operations, kg/cu.m; N-the quantity of the placed ignition charge, pc; and at a visual observation the electroblasting circuits is closed at the instant, when the cloud of the fuel-air mixture overlaps the ignition charge. Fuel is sprayed from sprayers distributed near the structure and connected to one air compressor. Thermit is used as a dye. ^ EFFECT: enhanced efficiency and reduced labor content at cleaning of structures from ice coatings. ^ 3 cl |
