| 摘要 |
FIELD: fire-fighting equipment. ^ SUBSTANCE: in order to increase efficiency of local volumatric fire-extinguishing device contains cover in form of lateral surface of blunted cone or cylinder from incombustible compact flexible material. Upper basis of cover is fastened to upper platform in form of round flange, and lower - to lower platform, made in form of ring. Flange by means of traction, whose axis passes through its center, is fastened to element for movement of cover by, for instance mobile crane, crane - beam or helicopter. Bringing of cover in readiness is provided by unit-type mechanism with three branches of rope, passed through three similar openings, made in flange, centers of which lie on one circumference in points of its intersection with radii, located at angle of 120 to each other, upper ends of each rope are rigidly fastened in common point, located on traction, and lower ones - on drums, located and fastened in horizontal plane of lower platform, and distant from its center, which lies on horizontal projection of traction, on radii, located at angle of 120 to each other. Drive of each drum is connected with control unit, for control of "pleats" unraveling speed, electromagnetic inhibitory rods, which press moving branch of rope to surface of opening and connected with control unit are provided, and as fire-extinguishing device applied is generator of aerosol, powder or gas composition, which is included in work on line of communication from control unit. ^ EFFECT: increase of reliability of local volumatric fire-extinguishing. ^ 1 dwg |
