RU2456044C1 - Method for three-dimensional fire extinguishing and device for its implementation - Google Patents

Abstract

FIELD: fire-fighting means.

SUBSTANCE: invention relates to fire-fighting equipment, in particular to equipment for 3D fire extinguishing. Method for 3D fire extinguishing in premises consists in the fact that elements for fire extinguishing are mounted with a charge of smoke-forming composition, which are interconnected by fuse. The elements are placed in the volume of the premises so that their axes intersect at the geometric center of the premises, which is defined as the point of intersection of the diagonals of a rectangular parallelepiped or a cube. A device for 3D fire extinguishing includes elements for fire fighting, interconnected by a fuse. At that the fuse connect elements for fire fighting with a charge of smoke-forming composition to form a closed quadrangle with vertices that contain these elements, and each of the elements for fire fighting is based on a dual-mode nonlinear fire-extinguishing aerosol generator, made in the form of two semi-casings with attachment elements, and contains the charges of aerosol-forming composition placed in the casing cavity. Thermosensitive cords pass through the sealed surface of discharge and serve as sensors of fire, with the charge of the first mode is separated from the charge of the second mode with interlining of slow-burning fuel, which thickness and rate of combustion is determined by the required time of evacuation, and on the surfaces of discharge acoustic whistles are installed.

EFFECT: increased reliability and effectiveness of 3D fire extinguishing system.

2 cl, 2 dwg

Description

The invention relates to fire fighting equipment, and in particular to equipment for volumetric fire extinguishing.

The closest technical solution to the proposed one is the method for volumetric fire extinguishing according to the patent of the Russian Federation No. 2401675, which consists in the fact that in the room set the elements for extinguishing with a charge of a smoke-forming composition, which are interconnected by fire-resistant cords made of a material that transfers combustion ( prototype).

A disadvantage of the known device is the relatively low response speed due to the lack of elements that contribute to the disclosure of the charge zone.

The technical result is an increase in the reliability and efficiency of the volumetric fire extinguishing system.

This is achieved by the fact that in the method for volumetric fire extinguishing in a production room, which consists in the fact that the elements for extinguishing with a charge of a smoke-generating composition are installed in the room, which are interconnected by fire-resistant cords made of a material that transfers combustion, the elements are placed in the volume of the room in such a way that their axes intersect in the geometric center of the room, which is defined as the point of intersection of the diagonals of a rectangular box or cube, while wire cords connect the elements to extinguish a fire with a charge of a smoke-generating composition and form a closed quadrangle with the vertices in which these elements are installed, each of the elements for extinguishing a fire is made on the basis of a two-mode nonlinear fire extinguishing aerosol generator, the case of which is made of two half-bodies with elements fastenings and contains aerosol-forming charges placed in the body cavity, equipped with an igniter and heat-sensitive cords passing through the seals the surface of the discharge and acting as fire detectors, while the charge of the first mode is separated from the charge of the second mode by a layer of slow-burning fuel, the thickness and burning rate of which is determined by the required evacuation time, and acoustic whistles are installed on the surfaces of the exhaust.

Figure 1 shows a diagram of a device for implementing the method of volumetric fire extinguishing, figure 2 is an element for extinguishing with a charge of a smoke-forming composition.

The proposed method for volumetric fire extinguishing in a production building 1 (Fig. 1) is as follows.

In room 1, elements 2, 3, 4, 5 for extinguishing with a charge of a smoke-generating composition are installed, which are interconnected by fire-resistant cords 6, 7, 8, 9, made of a material that provides combustion transfer. Elements 2, 3, 4, 5 are placed in the volume of room 1 in such a way that their axes intersect in the geometric center of room 1, which is defined as the intersection point of the diagonals of a rectangular parallelepiped or cube, while the fire-resistant cords 6, 7, 8, 9 connect the elements 2, 3, 4, 5 to extinguish a fire with a charge of a smoke-generating composition and form a closed quadrangle with vertices in which these elements are installed.

A device for volumetric fire extinguishing (Fig. 1) in the production room 1 contains elements 2, 3, 4, 5 for extinguishing with a charge of a smoke-generating composition, which are interconnected by fire-resistant cords 6, 7, 8, 9, made of material providing combustion transfer. Elements 2, 3, 4, 5 are located in the volume of the room in such a way that their axes intersect in the geometric center of the room, which is defined as the intersection point of the diagonals of a rectangular parallelepiped or cube, while the fire-resistant cords 6, 7, 8, 9 connect the elements 2, 3, 4, 5 to extinguish a fire with a charge of a smoke-forming composition, forming a closed quadrangle with the vertices in which these elements are installed.

Each of the fire extinguishing elements 2, 3, 4, 5 contains a housing (Fig. 2), which is made of two half-shells 10 with fastening elements 11 and contains charges 12 of aerosol-forming or smoke-forming compositions located in the cavity of the body, equipped with an igniter 13 and heat-sensitive cords 14 passing through the sealed surfaces of the expiration 15 and acting as fire detectors. The charge 12 of the first mode is separated from the charge of the second mode 16 by a layer 17 of slow-burning fuel, the thickness and burning rate of which are determined by the required evacuation time. Acoustic whistles 18 are installed on some discharge surfaces.

The proposed device operates as follows.

When a fire occurs, first one of the fire-resistant cords 6, 7, 8, 9 is ignited, and then all are ignited, since they are connected together in a closed chain. Then, from the cords, the nodes of the initiation elements 2, 3, 4, 5 are connected to extinguish the fire, which, in turn, ignite the charges 12 of the smoke-forming composition.

In case of fire, heated combustion products when reaching the ignition temperature of the heat-sensitive cord 14 set fire to it. The fire beam is transmitted to the igniter 13 and ignites the charge 12. When the charge 12 is burned, the aerosol flowing through the discharge surface fills the room to the calculated height, while simultaneously exciting the whistle 18 in the acoustic cavity. After burning through the layer 17 of slow-burning composition, the charge 16 of the second mode is ignited and replenishes the volume of the room.

The proposed device allows efficient volumetric fire extinguishing of gaseous, liquid and solid combustible substances in stationary premises, in rail and road transport, sea and river vessels, airplanes, including in purged compartments, for example, in aircraft engines. The advantages of the proposed device also include ease of maintenance, high reliability, a wide domestic raw material base, and the ability to prevent explosions of steam and gas mixtures in bulk after extinguishing.

Claims (2)

1. The method for volumetric fire extinguishing in a production room, which consists in the fact that the premises are installed elements for extinguishing with a charge of a smoke-generating composition, which are interconnected by fire-resistant cords made of a material that provides combustion transfer, characterized in that the elements are placed in the volume of the room in such a way that their axes intersect in the geometric center of the room, which is defined as the intersection of the diagonals of a rectangular box or cube, while water cords connect the elements to extinguish a fire with a charge of a smoke-forming composition. 2. A device for volumetric fire extinguishing, including elements for extinguishing a fire, interconnected by fire-resistant cords, characterized in that the elements for extinguishing are located in the volume of the room so that their axes intersect in the geometric center of the room, which is defined as the intersection point of the rectangular diagonals parallelepiped or cube, while the fire-resistant cords connect the elements to extinguish a fire with a charge from a smoke-forming composition, forming a closed quadrangle with vertices in which these elements are encased, and each of the elements for extinguishing a fire is made on the basis of a two-mode non-linear generator of a fire extinguishing aerosol, the body of which is made of two half-bodies with fastening elements and contains aerosol-forming charges placed in the body cavity, equipped with an igniter and heat-sensitive cords passing through the sealed outflow surfaces and performing the functions of fire sensors, while the charge of the first mode is separated from the charge of the second mode by a layer of slow burning its fuel, the thickness and burning rate of which is determined by the required evacuation time, and acoustic whistles are installed on the outflow surfaces.

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