KOCHETOV EXPLOSION-PROOF VALVE Russian patent published in 2017 - IPC F16K17/36 F16K17/12 F16K17/40 F16K17/14 

FIELD: machine building.

SUBSTANCE: invention relates to machine building and intended for process equipment explosion protection. Explosion-proof valve with load gate damping system comprises valve body, heat insulating and rupture elements, lined load gate. Lined load gate movable connection with valve body base is made in form of three rods vertically installed in lined load gate peripheral part holes. By lower part rods are fixed in valve body base. In upper part they have damping device. Each of three damping devices is fixed on horizontal bridge, rigidly connected with rod and made in form of round disc. On this disc damping device base is fixed by means of screws. Latter is made from rigid vibration damping material of “Agat” type. Base is connected to bushing from elastomer and has central hole, through which rod is passing. Bushing has, at least, three holes, which are coaxial with rod, in which resilient elements are arranged, for example, cylindrical helical springs. Said springs upper end is connected to damping device base by means of fastening elements, and lower end is in free state and protrudes beyond bushing bottom plane at distance defined by force, generated by impact blast wave. To bushing end surface, on arranged in holes resilient elements free end side, coaxial with rod, safety element made in form of conical surface is rigidly connected. Cone lower base rests against bushing, and top is made with hole, into which enters rod.

EFFECT: invention is aimed at higher efficiency of process equipment protection against explosions by increasing lined load gate damping.

1 cl, 4 dwg