BLAST-PROOF PANEL Russian patent published in 2018 - IPC E04B1/92 

FIELD: protective devices.

SUBSTANCE: invention relates to safety devices used in explosive and radioactive facilities, such as easy detachable panels and roof, blast guards and shields, excessive pressure valves. In the anti-explosion panel, which contains a metal armored frame with metal armored plating and a filler-lead, which has four fixed branch pipes at the ends, while in the cover of the explosive object four support rods are rigidly embedded, which are telescopically inserted into the stationary pipe fittings of the panel, the filler is made in the form of an air-lead disperse system, lead is made in the form of a crumb, and outside the support rods are resilient damping elements, one end of which rests against the armored metal plating, and the other – in the sheet-stops located in the upper part of the support rods, while the elastic-damping elements are made in the form of cylindrical helical springs, the outer helical surface of which is covered with shock-absorbing mastic, for example of the VD-17 type, the filler is made in the form of a ball-shaped crumb of one diameter, or the filler is shaped in the form of a ball-shaped or randomly shaped crumb of different diameters, and to fix the limit position of the panel to the ends of the supporting elastic rods with stop sheets, there is attached damping element, intended for damping the impact loads of the panel against the sheet-stops, and it is attached oppositely to the panel and directed towards it and is made in the form of a body with an internal cavity and surfaces equidistant to the surfaces of the panel, while its internal cavity is filled with a three-layered symmetric disperse system, the central layer, which is a layer of symmetry of a body with an internal cavity, and surfaces that are equidistant to the surfaces of the panel, is made of a shock-absorbing material, and the adjacent layers are filled with an air-lead disperse system. Shock-absorbing material of the central layer of the damping element of the anti-explosion panel consists of three layers: the first layer is made of a dispersible resilient damping material in which crumb can be used, the second layer is made of knitted elastic synthetic threads, the size of cells knitted from elastic synthetic filaments by 10÷15 % smaller than fractions of crumbs of shock-absorbing materials; and the third layer is made of solid damping material.

EFFECT: higher reliability of explosion-resistant device operation during emergency explosion at the facility, and ensured return of these device to the original position after explosion.

1 cl, 3 dwg