RU2571771C1 - Blast protection panel - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: blast protection panel comprises a metal reinforced frame with a metal armoured lining and a filler - lead, has four fixed nozzles-supports in the ends. In the coating of the blast protection object there are four support rods rigidly embedded, which are telescopically inserted into the fixed nozzles-supports of the panel. The filler is made in the form of an air-lead dispersed system. Lead is made in the form of a crumb, and support rods are made elastic. The blast protection panel additionally comprises elastic damping disposable elements, which are fixed on support rods to stop sheets by means of a damping base, connected by screws with a coaxially arranged flanged bushing, the upper flange of which is connected to the damping base, and the lower one - with the pressing element of the bushing type with grooves for fixation of one of the ends of the elastic element, made in the form of a conical spring, the other end of which stops against a sleeve with a central hole, in which the rod is coaxially placed. On the outer surface of the flanged bushing there is a safety bushing installed coaxially to the rod, made of brittle disposable material, for example, porcelain. The sleeve is also made of brittle disposable material, for example, porcelain, and is fixed by its shell to the pressing elements by screws. The coaxially arranged flanged bushing is made of vibration damping material, for example, polyurethane, and the cavity between the outer surface of the elastic element made in the form of a conical spring, and the sleeve with the central opening, in which the rod is coaxially installed, is filled with vibration damping material, for example, polyurethane.

EFFECT: invention makes it possible to increase reliability of actuation of blast protection devices in case of an emergency explosion on a facility and to provide for return of these structures into the initial position after the explosion.

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Description

The invention relates to protective devices used in explosive and radioactive objects, such as easily erasable panels and roofs, explosion-proof fences 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 anti-explosive panel according to the patent of the Russian Federation No. 2458212, Cl. E04B 1/92, BI No. 28 dated 09/20/2008 (prototype), consisting of an armored metal frame with armored metal casing and a filler - lead. In the coating of the object near the opening, four support rods are embedded that are telescopically inserted into 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 anti-explosion panel containing a metal armored frame with metal armored casing and lead filler having four fixed support pipes at the ends, while in the coating of an explosive object four support rods are rigidly fixed, which are telescopically inserted into the fixed pipes the panel supports, the filler is made in the form of a dispersed air-lead system, moreover, the lead is made in the form of crumbs, and the support rods are made elastic, and additionally neighbors elastically damping, collapsing, single-acting elements that are mounted on support rods to abutment sheets by means of a damping base connected by screws to a coaxially located flange sleeve, the upper flange of which is connected to the damping base, and the lower one - with a sleeve-type clamping element with grooves for fixing one of the ends of an elastic element made in the form of a conical spring, the other end of which abuts against a glass with a central hole in which the rod is coaxially placed And the outer surface of the flange sleeve mounted coaxially rod safety sleeve made of a brittle, crumbling material such as porcelain and glass are also made of a brittle, crumbling material such as porcelain, and its shell is fastened to a clamping element screws.

In FIG. 1 is a diagram of an explosion-proof coating panel (or roof) of an explosive or radioactive object; FIG. 2 is a diagram of an elastically damping collapsing element of a one-time action.

The explosion-proof panel (Fig. 1) consists of an armored metal frame 1 with armored metal sheathing 2 and a filler - lead 3. In the coating of the object 7 at the aperture 8, four support rods 4 are mounted symmetrically with respect to the axis 9, telescopically inserted into the fixed support tubes 6, embedded in the panel. 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, moreover, the lead is made in the form of crumbs, and the support rods 4 are resilient. An elastic damping collapsing element 10 of a one-time action is attached to the stop sheets 5.

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.

Elastic-damaging collapsing element 10 of a one-time action (Fig. 2) is mounted on the support rods 4 to the stop sheets 5 by means of a damping base 11 connected by screws 12 to a coaxially located flange sleeve 13, the upper flange of which is connected to the damping base 11, and the lower one to the clamping an element 18 of the sleeve type with grooves 19 for fixing one of the ends of the elastic element 21, made in the form of a conical spring, the other end of which abuts against the glass 16 with a Central hole 17, which is coaxially placed with erzhen 4. On the outer surface of the flanged sleeve 13 is mounted coaxially with the rod 4, the safety sleeve 14 made from a brittle, crumbling material such as porcelain. The glass 16 is made of a brittle, collapsing material, such as porcelain, and is fastened with its shell 15 to the clamping element 18 with screws 20.

The assembly of the elastically damping collapsing element 10 of a single action is carried out in the following sequence. An abutment sheet 5 is welded to the rod 4 perpendicularly to its axis, after which a damping base 11 is fastened to it via screws 12 through a flange sleeve 13 with a safety sleeve 14. To the bottom flange of the sleeve 13, a clamping element 18 of the sleeve type with grooves 19 is fastened with screws 12, which fix the upper base of the elastic element 21, made in the form of a conical spring. Then set the glass 16, with emphasis in its bottom of the lower base of the conical spring 21 and tighten it with screws 20 to the clamping element 18.

A variant is possible when the coaxially located flange sleeve 13, the upper flange of which is connected to the damping base 11, and the lower one to the clamping element 18 of the sleeve type, is made of vibration damping material, for example polyurethane.

It is possible that the cavity between the outer surface of the elastic element 21, made in the form of a conical spring, and the cup 16 with the central hole 17, in which the rod 4 is coaxially placed, is filled with a vibration-damping material, for example polyurethane (not shown in the drawing).

Thus, the collapsing element 10 is ready for installation on the anti-explosion panel.

The explosion-proof panel operates as follows.

When an explosion occurs inside the production room (not shown in the drawing), the panel rises from the action of the shock wave and overpressure is released through the open opening 8. 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. Stop plates 5 are used to fix the limit position of the panel.

Elastically damping collapsing element 10 of a single action works as follows.

When lifting the panel 1 from the action of the shock wave, it abuts against the bottom of the cup 16, which is destroyed when the panel moves upward, releasing the conical spring and the path for further movement of the clamping element 18 along the rod 4 until it interacts with the flange sleeve 13, while the safety sleeve is destroyed 14, made of brittle, collapsing material, and the clamping element 18 abuts through the flange sleeve 13 to the damping base 11. In the case of a large (more than 5 KPa) pressure of the blast wave or the weld is cut off chnoe compound which attaches the support rods 4 to the sheets 5-stops or blockage occurs and the gap rods 4.

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 crumbs, and the support rods 4 are made elastic.

Using the proposed technical solution allows the prevention of explosive objects from destruction and the reduction of harmful substances into the atmosphere during an accidental explosion.

Claims (1)

An explosion-proof panel 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 pipes of the panel, and the filler is made into in the form of a dispersed air-lead system, moreover, the lead is made in the form of crumbs, and the support rods are made elastic, further comprises elastic-damping fractures single-acting elements that are attached to the support rods to the abutment sheets by means of a damping base connected by screws to a coaxially located flange sleeve, the upper flange of which is connected to the damping base, and the lower one - with a sleeve-type clamping element with grooves for fixing one of the elastic ends element made in the form of a conical spring, the other end of which abuts against a glass with a central hole in which the rod is coaxially placed, and on the outer surface is a flange the sleeve is installed coaxially with the rod, a safety sleeve made of brittle, collapsing material, such as porcelain, and the glass is also made of brittle, collapsing material, such as porcelain, and is fastened with its shell to the clamping element with screws, characterized in that the coaxially located flange sleeve, the upper flange which is connected to the damping base, and the lower one to the clamping element of the sleeve type, made of vibration damping material, such as polyurethane, and the cavity between the outer surface The elastic element, made in the form of a conical spring, and a cup with a central hole in which the rod is coaxially placed, is filled with a vibration damping material, for example, polyurethane.

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