RU2777754C1 - Fire-resistant module for communications - Google Patents

Abstract

FIELD: fire-fighting.

SUBSTANCE: invention relates to fire-fighting equipment, namely, to a fire-resistant module for communications, ensuring containment of a fire and preventing the possibility of spread of the fire in communications tunnels, including cable lines, pipeline and sewerage lines. Fire-resistant module for communications consists of plates made of a fire-resistant material, interconnected on four sides and forming an internal opening for laying the communications, wherein a fire-protective material is placed in the gaps between the plates, placed in the opening formed by the plates is a metal box consisting of a tray and a cover both made in the form of metal U-shaped profiles provided with lock assemblies at the edges and interconnected; wherein each of the plates is connected with the metal box by fasteners, and a fire-protective hot-setting material is used as the fire-protective material placed in the gaps between the plates.

EFFECT: reduced dimensions, simplicity of the apparatus and ease of installation of a protective system for communications based thereon; possibility of repair and access to communications without the need to dismantle the system; possibility of laying communications systems of any length and configuration; elimination of the need to make separate fire walls; eliminated need to create a separate system for retaining the communications.

10 cl, 6 dwg

Description

The invention relates to fire fighting equipment, in particular to devices that provide localization of fire and prevention of the spread of fire in communication tunnels, including cable lines, pipeline and sewer lines.

A device for preventing the spread of fire through an electric cable is known, consisting of a fire barrier with a fire-preventing belt made of asbestos cord and a clutch with an explosive placed on the cable (SU 1540835 A, 07.02.1990).

It is also known a device for extinguishing burning electrical cables and wires in cable ducts, tunnels, containing a fire-retardant partition, on both sides of which there are flame-retardant belts made in the form of detachable cylindrical bushings placed on cables and filled with a fire extinguishing agent (SU 1613120 A, 12/15/1990 ).

A device for preventing the spread of fire through an electric cable is known, made in the form of a fire bulkhead, consisting of two fire-resistant sheets, through the holes in which the supporting structure passes with cable bundles coated with an intumescent fire-retardant coating, while the passage zone of the supporting structure with cable bundles through openings in the bulkhead are covered with heat-resistant sealing material (EP 0931568 A1, 12/30/1998).

A device is known for preventing the spread of fire through an electric cable, containing a fire bulkhead installed in the opening of a fire wall, having cutouts for passing a metal supporting structure for cable bundles through it and made in the form of one layer or two layers of mineral fiber plates with a fire retardant coating applied to them. , while the plates are installed inside the opening with a fire-retardant coating to the outside (SN 670273 A5, 05/31/1989).

The closest analogue is a device for preventing the spread of fire through an electric cable (RU2186599, published: 08/10/2002), containing a fire bulkhead installed in the opening of the fire wall, having cutouts for passing through it the supporting structure for cable bundles and made in the form of a single layer of highly compacted plates of stone-based mineral fiber coated on both sides with a fire-retardant coating, or in the form of two layers of highly compacted stone-based mineral fiber slabs, coated on one side with a fire-retardant coating and installed inside the opening with a fire-retardant coating to the outside, while the opening and internal end surfaces slabs are covered with fire-retardant material, and in the gaps between the slabs, the supporting structure and the cable bundles, mineral wool impregnated with a fire-retardant material is placed, and additionally, fire-retardant putty is placed in the gaps, and the bulkhead is equipped on both sides with additional solid layer of flame retardant material.

The technical problem of the prototype and other known solutions is the need to perform a fire wall and multiple layers of coatings of fire retardant materials.

Also, it is necessary to carry out a separate retention system of the supporting structure for the communications themselves.

In addition, the constructed structures are formed individually for the required dimensions of the room, which limits their length and configuration to the spatial capabilities of the premises themselves.

Taken together, the well-known technical solutions provide structurally complex and spatially voluminous in installation and material-intensive objects that cannot be serviced without completely dismantling them.

The objective of the invention is to create such a device for preventing the spread of fire through the communications installed inside it, which ensures the elimination of the above technical problems.

The technical result of the invention are:

- reduced size, ease of device and installation of a protective system for communications based on it,

- the possibility of repair and access to communications, without the need to dismantle the system itself,

- the possibility of laying communication systems of any length and configuration,

- rejection of the need to perform separate fire walls,

- no need to implement a separate retention system for the communications themselves.

The specified technical result is achieved due to the fact that a fire-resistant module for communications is claimed, consisting of plates of fire-resistant material connected to each other on four sides, forming an internal opening for laying communications, moreover, a fire-retardant material is placed in the gaps between the plates, characterized in that inside formed by the plates of the opening, a metal box is placed, consisting of a tray and a cover, made in the form of metal U-shaped profiles, having locking nodes at the edges and connected to each other, each of the plates is connected to the metal box with fasteners, and as a fire-retardant material, placed in the gaps between the plates, fire-retardant thermally expanding material is used.

Preferably, as a fire-retardant thermo-expandable material placed in the gaps between the plates, a thermo-expandable tape, or fire-retardant paint or fire-retardant thermo-expandable material based on a water-polymer dispersion with functional mineral and organic fillers is used.

Preferably, the lid of the metal box is smaller in area than the tray of the metal box.

Preferably, self-tapping screws are used as fasteners for plates with a metal tray and a lid.

Preferably, through holes are made in the metal tray and its cover for fixing the plates with the metal box.

Preferably, there are at least four through holes in the tray on the base of the tray, and at least one on each of the sides.

Preferably, at least four through holes are provided in the lid.

Preferably, the side plates are connected to the plane of the upper and lower plates by their ends.

Preferably, the connection of the plates in the module is made through their fastening to the metal box so that the bottom and side plates are connected to the tray of the metal box, and the top plate is connected to the cover of the metal box, and the connection of these elements into a single module is made through the locking connection of the metal box.

It is possible that the module is made up of two identical parts connected to each other.

Brief description of the drawings

Figure 1 shows the constructive device of the fire-resistant module for communications.

Figure 2 shows the principle of removing/installing the module cover on its lower part.

Figure 3 shows the structural design of a metal tray with a lid.

Figure 4 shows an example of a suspension system for a fire-resistant module.

Figure 5 shows an example of serial connection of several modules.

Figure 6 shows an example of a fire-resistant communication module consisting of identical halves (A - view in the assembled state, B - view in the disassembled state).

In the drawings: 1 - top fire retardant plate, 2 - lower fire retardant plate, 3 - side fire retardant plate, 4 - metal tray, 5 - metal tray cover, 6 - fire retardant thermally expanding material, 7 - frosts, 8 - metal tray lock assembly, 9 - lock assembly of the cover, 10 - holes for fixing to the fireproof plate, 11 - suspension system support, 12 - profile, 13 - nut.

Implementation of the invention

The communication module consists of four plates of fire-resistant material connected to each other, forming an internal opening for laying communications, and a fire-retardant material is placed in the gaps between the plates.

What is new is that inside the opening formed by the plates 1, 2, 3 there is a metal box, consisting of a tray 4 and a cover 5, made in the form of metal U-shaped profiles, having locking nodes 8 and 9, respectively, at the edges and connected to each other. friend.

Each of the plates 1, 2, 3 is connected to a metal box with fasteners 7, and as a fire retardant material placed in the gaps between the plates, a fire retardant thermally expanding material 6 is used as a fire retardant material placed in the gaps between the plates.

As a fire-retardant thermally expanding material 6, placed in the gaps between the plates, for example, thermally expanding tape can be used, which can be used, for example: thermally expanding tape "Doors" (see https://euroresurs.su/lenta-uplotnitelnaya -termorasshiryayushhayasya-evroresurs/), "OGNEZA-LTU" (see https://ogneza.com/l-t-u/ ) or Ograx L tape (see https://mtl-k.ru/shop/protivopozharnye-materialy/termouplotnitelnaja -protivopozharnaja-lenta/ograks-ltu-uplotnitelnaja-termorasshiryayushhayasya-lenta/) based on oxidized graphite.

Or as a fire retardant thermal expansion material 6 placed in the gaps between the plates, a fire retardant thermal expansion material based on a water-polymer dispersion with functional mineral and organic fillers can be used (see https://www.ograx.ru/products/ognezashchita-kabelej/vv /).

Also, fire retardant paint can be used as a fire retardant material, which is used to increase the fire resistance of metal structures, for example, Phoenix STS paint (see https://www.tdd.ltd/ognezashhitnaja-kraska-feniks-sts). Fire retardant paint is an organic mixture with foaming components. In case of fire, it swells, forming a fire-resistant thermal insulating layer.

It is more convenient when the lid of the metal box 5 is smaller in area than the tray 4 of the metal box, since it is then easier to remove the lid.

As fasteners 7 plates 1, 2, 3 with metal tray and cover can be used, for example, self-tapping screws.

In the metal tray 4 and its lid 5, under the places for fastenings 7 plates 1, 2, 3 with a metal box (see Fig.3), through holes 10 can be made in advance. Through holes 10 in the tray 4 can be made in the number of four or more on the base of the tray, and at least one on each of its sides. And in the cover 5 at least four through holes can be made.

The side plates 3 can be connected to the plane of the top 1 and bottom 2 plates with their ends or otherwise.

One possible example of joining plates into a module is shown below.

The module can be formed by connecting plates with a metal box so that the lower 2 and side 3 plates are connected to the tray 4 of the metal box, and the top plate 1 is connected to the cover 5 of the metal box (see Fig.1, Fig.2), and the connection of the indicated elements into a single module is made through the lock connection of the metal box, by joining the lock nodes 8 and 9. This greatly simplifies the process of opening / closing the module, since if it is necessary to lay new communications or replace existing ones, it is enough to remove the cover 5 of the metal box together with the top plate 1, which fixed to it, carry out the necessary work and install the cover back. Such actions can be performed along the entire communication line from the same type of modules as in Fig.5.

This example is not limited to this particular embodiment and can be implemented, for example, by creating a module in which both of its parts will be the same (see Fig.6), which facilitates the production and transportation of the component parts of the module, but increases its material consumption due to increasing the number of side plates 3.

The invention ensures the preservation of the operability of cable lines or other communications (for example, pipelines) in a fire.

The design of the module is such that due to the connection of plates 1, 2, 3 with a metal box, the latter performs the function of a supporting frame and gives the module spatial rigidity.

The modularity of the claimed design provides the ability to connect the same type of modules in the route of any length and configuration (see Fig.5).

If it is necessary to lay a communications route above the ceiling to hold the modules, a suspension system can be used as in Figure 4, in which the module is held by supports 11 of the suspension system, which are fixed with nuts 13 to the profiles 12 holding the module.

In other cases, when the communications route is vertical (from floor to ceiling) or lies horizontally on the floor or other support, or is fixed to the wall, a suspension system is not required.

Due to the fact that the joints between plates 1 and 3, 2 and 3 are closed with fire-retardant thermally expanding material 6, the design of the module eliminates "wet" processes during installation (i.e. no glue and sealant is needed), which allows you to remove and put on the cover an unlimited number of times as shown in Fig.2. This circumstance makes it possible to repair and access communications, without the need to dismantle the system itself.

The role of the sealant is performed by fire-retardant thermally expanding material 6.

The principle of operation of the fire-retardant intumescent material 6 is as follows. At the time of the fire, under the influence of high temperatures (from 180 ° C), the graphite-based fire retardant material from which the fire retardant material is made, whether it is a heat-sealing tape or paint, begins to swell instantly, expanding tenfold and filling the gaps between the plates, thereby preventing penetration of fire and smoke into the module with communications. And fire-retardant plates take on the function of a heat insulator of a metal box. Thus, after a fire, the module completely keeps communications intact and is in the same working condition, that is, it can remove the cover and replace the thermally expanding tape or fire-retardant paint in it with a new one, after which the module can be further operated.

The fire-resistant module can be manufactured with a width of 200 to 600 mm and sheathed with fire-retardant boards, for example, TEHSTRONG fire-retardant boards with a thickness of 25 to 50 mm (see http://www.ei150.ru/images/documents/katalog_tehstrong.pdf ). You can use other fireproof boards, for example: Polymin, Isovent-P, Ognelit, ET Metal, Ekoplast, Phoenix PMO (see https://www.ognebio.ru/ognezashhitnye-materialy/plity/) or others.

Unlike a conventional fire-resistant box, as in known solutions, the fire-resistant boards in the claimed module are tightly adjacent to the metal box without voids. Thus, it is possible to achieve a greater thickness of the plate and a better fire resistance index with smaller dimensions of the product.

In general, it follows from the foregoing that the claimed module has a reduced size, simplicity of device and installation of a protective system for communications based on it, does not require separate fire walls, does not require a separate retention system for the communications themselves, since the metal box performs these functions.

Claims (10)

1. A fire-resistant module for communications, consisting of plates of fire-resistant material connected to each other on four sides, forming an internal opening for laying communications, moreover, a fire-retardant material is placed in the gaps between the plates, characterized in that a metal box is placed inside the opening formed by the plates, consisting from a tray and a cover made in the form of metal U-shaped profiles having locking nodes at the edges and connected to each other, each of the plates is connected to a metal box with fasteners, and a fire-retardant thermally expanding material. 2. The module according to claim 1, characterized in that as a fire retardant thermal expansion material placed in the gaps between the plates, a thermal expansion tape or fire retardant paint or a fire retardant thermal expansion material based on a water-polymer dispersion with functional mineral and organic fillers is used. 3. The module according to claim 1, characterized in that the cover of the metal box is smaller in area than the tray of the metal box. 4. The module according to claim 1, characterized in that self-tapping screws are used as fasteners for plates with a metal tray and a lid. 5. The module according to claim 1, characterized in that through holes are made in the metal tray and its cover for the places for fixing plates with a metal box. 6. The module according to claim 5, characterized in that the tray has at least four through holes on the base of the tray and at least one on each side. 7. Module according to claim 5, characterized in that at least four through holes are made in the cover. 8. The module according to claim 1, characterized in that the side plates are connected to the plane of the upper and lower plates with their ends. 9. The module according to claim 1, characterized in that the connection of the plates in the module is made through their fastening with a metal box so that the bottom and side plates are connected to the tray of the metal box, and the top plate is connected to the cover of the metal box, and the connection of these elements in a single module is made through the locking connection of a metal box. 10. The module according to claim 1, characterized in that the module is made up of two identical parts connected to each other.

Images