BLAST VALVE Russian patent published in 2014 - IPC F16K17/36 F16K17/12 F16K17/40 F16K17/14 

FIELD: machine building.

SUBSTANCE: blast valve with a system of damping of the load gate comprises a valve body, heat-insulating and rupture elements, a lined load gate. A dynamic connection of the lined load gate with the valve body base is made in the form of three rods installed vertically in the peripheral part of the lined load gate. The rods are connected with the lower part in the valve body basis. The upper part thereof is provided with a damping device. Every one of three damping devices is attached to a horizontal jumper rigidly connected with the rod and implemented in the form of a round disk. A base of the damping device is attached to this disk by means of screws. The device is made of a rigid shock-absorbing material of "Agat" type. The base is connected with a bushing made of elastomer and features a central hole, through which the rod passes. The bushing features, at least, three holes coaxial with the rod accommodating resilient elements, e.g. cylindrical screw springs. The upper end face of these springs is connected by means of fasteners to the damping device base, while a lower end face is in a free state and protrudes beyond a lower bushing plane by a distance determined by the force developed by the shock explosion wave.

EFFECT: increasing efficiency of the process equipment protection against explosions by increasing the shock-absorption of the lined load gate.

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