FIELD: security systems.
SUBSTANCE: invention relates to safety systems in emergency situations and may be applied for explosion protection of buildings and structures, and also process equipment. Stand contains an explosive chamber, in the upper base of which there is an opening overlapped by an easily discarded element, the area of the hole can be changed by screwing in replaceable rings, and the discarding element covers the hole in the ring, above which there is a protective screen fixed. Second hole is closed by a valve, which is pressed against the hole by an electromagnet and opens by a spring when the contacts are opened, and the force of pressing the valve and compressing the spring is set so that the total force is equal to the permissible pressure multiplied by the valve opening area, i.e. ΔF=Fem-Fspr=ΔRdm Sv, where Fem – the force of the electromagnet, pressing the valve to the hole, N/m2; Fspr – spring force of the spring, opening the valve, N: Fspr=(10÷15) gm, where g = 9.81 m/s2; m – mass of the electromagnet core with a valve, kg; Sv – area of the valve opening, m2. Lightweight throwing element contains a metal armored frame with a metal armored shell and a lead filler, which has four fixed branch pipes at the ends. In the cover of an explosive object, at least three support rods with leaf stops in the upper part are rigidly fixed. In the upper part of the support rods are fixed resilient damping elements. Elastic-damping elements fixed on the stopping sheets are made in the form of a damping plate filled with a three-layer symmetric disperse system. Central layer, which is a layer of symmetry of the volumetric body of a damping plate with an internal cavity and surfaces equidistant to the surfaces of the panel, is made of a vibration damping material, and adjacent layers are filled with an air-lead disperse system.
EFFECT: increased efficiency of building protection by means of increasing the speed and reliability of operation.
1 cl, 5 dwg
