RU2592868C1 - Kochetov explosion proof panel with damping device - Google Patents

Abstract

FIELD: safety.

SUBSTANCE: invention relates to protective devices used in explosive and radioactive facilities, such as easily detachable panels and roofs, explosion proof enclosures and gates, excess pressure valves. Explosion proof panel with a damping device comprises metallic armoured frame with metallic armoured lining and lead filler, has in ends four fixed pipe-supports, and in coating of explosive object are rigidly embedded four bearing rods, which are telescopically inserted into fixed branch pipe-support of panel. Filler is composed of air-lead disperse system, wherein lead is made in form of chips. Outside bearing rods there are elastic damping elements, one end of which rests against armoured metal plating, and other - in support sheets located in upper part of bearing rods. Elastic damping elements are composed of air damping elements made of rubber-cord shells of conical shape, with central hole into which enters a rod and fixed branch pipe-supports, embedded in panel, are made in axial section of curvilinear shape, for example, hyperbolic.

EFFECT: technical result consists in improvement of reliability of explosion-proof devices at emergency explosion on site and providing return of said structures into initial position after explosion.

1 cl, 4 dwg

Description

The invention relates to protective devices used in explosive and radioactive objects, such as easily erasable panels and roofs, explosion-proof guards and dampers, overpressure valves.

A device for explosion-proof panels is known (application DE No. 19638658, IPC E04B 1/92 dated 04/16/1998), where the possibility of raising and lowering the panel to its original place in the explosion is carried out by the action of springs inserted into the support pipes.

The closest technical solution to the claimed object is an explosion-proof panel according to the patent of the Russian Federation No. 2533390, Cl. E04B 1/92 (prototype), consisting of an armored metal frame with armored metal casing and a filler - lead. Four support rods are embedded in the object’s cover at the opening, telescopically inserted into the fixed support pipes embedded in the panel. To fix the limit position of the panel, stop plates are welded to the ends of the support rods.

A technically achievable result is an increase in the reliability of operation of explosion-proof devices during an emergency explosion at the facility and ensuring the return of these structures to their original position after the explosion.

This is achieved by the fact that in the explosion-proof panel with a damping device containing a metal armored frame with metal armored casing and lead filler having four fixed support pipes at the ends, while four supporting rods are rigidly embedded in the coating of the explosive object, which are telescopically inserted into fixed branch pipes supporting the panel, the filler is made in the form of a dispersed air-lead system, moreover, the lead is made in the form of a crumb, and outside the support rods are located There are elastic-damping elements, one end of which abuts against an armored metal sheathing, and the other - in abutment sheets located in the upper part of the support rods, while the elastic-damping elements are made in the form of cylindrical coil springs, the outer screw surface of which is covered with vibration damping mastic, for example, of the type VD-17.

In FIG. 1 shows a diagram of an anti-explosion panel with a damping device for coating (or roofing) an explosive or radioactive object, FIG. 2 shows an embodiment of an explosion-proof panel with a rapidly collapsing sleeve; FIG. 3 is an embodiment of an anti-explosion panel with pneumatic damping elements, FIG. 4 is a diagram of a movement of a panel with a hyperbolic surface of support pipes 6 up the conical rubber-cord shell of a damping device.

The explosion-proof panel with a damping device consists of an armored metal frame 1 with an armored metal casing 2 and a filler - lead 3. In the coating of the object 7 at the opening 8, four support rods 4 are mounted symmetrically with respect to the axis 9, telescopically inserted into the fixed support tubes 6, embedded in panels. To fix the limit position of the panel, stop plates 5 are welded to the ends of the support rods 4. In order to damp (soften) shock loads when the panel is returned, the filler is made in the form of a dispersed air-lead system, the lead being made in the form of crumbs, and the supporting rods 4 can be made elastic.

Outside of the support rods are located elasto-damping elements 10, one end of which abuts against an armored metal sheathing 2, and the other into abutment sheets 5 located in the upper part of the support rods 4.

Elastic-damping elements 10 can be made in the form of cylindrical coil springs, the external helical surface of which is covered with vibration-damping mastic, for example, type VD-17.

The filler may be made in the form of spherical chips of one diameter; in the form of spherical crumbs of different diameters. The filler can be made in the form of crumbs of arbitrary shape of different diametric (maximum external, arbitrary shape, contour of the crumb) size.

A variant is possible (Fig. 2) when, in order to fix the limit position of the panel, the damping element 11 is attached to the ends of the supporting elastic rods 4 with stop sheets 5 (Fig. 2), designed to damp the shock loads of the panel on the stop sheets 5.

The damping element 11 is attached opposite the panel and is directed towards it, i.e. towards her movement during the explosion.

The damping element 11 is made in the form of a volumetric body with an internal cavity and surfaces equidistant to the panel surfaces, while its internal cavity is filled with an air-lead dispersed system, and lead is made in the form of crumbs of a spherical shape.

It is possible that between the damping element 11 attached to the opposite panel and the metal frame 1 with the armored metal casing 2, sleeves 12 made of quick-breaking material, for example triplex glass, are installed on the supporting rods 4.

It is possible that between the damping element 11 attached to the opposite panel and the metal frame 1 with the armored metal casing 2, pneumatic damping elements 13 are made on the support rods 4, made of rubber-cord shells, for example, of a conical shape, having a central hole 15, which includes the rod 4. In this case, the fixed support pipes 6 embedded in the panel are made in the axial section of a curved shape 14, for example, hyperbolic.

The explosion-proof panel with a damping device operates as follows.

When an explosion occurs inside the production room (not shown in the drawing), the panel 1 rises from the action of the shock wave and overpressure is released through the open opening 8.

In this case, the elastic damping elements 10 are compressed, absorbing the energy of the explosion, and then return the panel to its original state.

The outer helical surface of the elastic damping elements 10 is covered with vibration damping mastic, for example, type VD-17, which further contributes to the damping of the blast wave.

During explosive movement of the panel upwards along the elastic rods 4, it encounters a damping element 11 in its path, upon interaction with which the energy of the explosion is extinguished.

The implementation of the damping elements 13 in the form of rubber-cord shells makes it possible to more intensively resist the movement of the panel to the stop sheets 5 when the explosive load increases due to the increasing cross-sectional area of the rubber-cord shells of the conical shape and the increase in the friction of the hyperbolic surface of the support tubes 6 against the conical surface of the pneumatic damping elements 13.

After the explosion and the drop in excess pressure, dropping down, the panel closes the opening 8, and harmful substances do not enter the atmosphere. To fix the limit position of the panel, stop plates 5 are used. In order to damp (soften) shock loads when the panel is returned, the filler of the metal frame 1 is made in the form of a dispersed air-lead system, moreover, the lead is made in the form of a crumb, and the support rods 4 can be made elastic.

Using the proposed technical solution allows to prevent the destruction of explosive objects and reduce the flow of harmful substances into the atmosphere during an accidental explosion.

Claims (1)

An explosion-proof panel with a damping device, containing a metal armored frame with metal armored casing and lead filler, having four fixed support pipes at the ends, and four support rods that are telescopically inserted into the fixed pipe support sections of the panel, the filler made in the form of a dispersed air-lead system, moreover, the lead is made in the form of crumbs, and elastically damping elements are located outside the support rods , one end of which abuts against an armored metal sheathing, and the other into abutment sheets located in the upper part of the support rods, characterized in that the elastic damping elements are made in the form of pneumatic damping elements from rubber-cord shells of a conical shape having a central hole into which the rod, and the fixed support pipes embedded in the panel are made in the axial section of a curved shape, for example, hyperbolic.

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