RU155565U1 - AUTOMATIC AEROSOL EXTINGUISHING MODULE - Google Patents

Abstract

An automatic aerosol fire extinguishing module, comprising a housing, an aerosol forming charge placed in the housing, a charge ignition initiating unit, a binder for cooling the aerosol mixture, openings for the exit of the aerosol mixture from the housing, characterized in that it further comprises an autonomous power source and a manual control unit, openings for the exit of the aerosol mixture are made slit-like, radially located on the end part of the body, while a reflection is placed in front of the holes Tel flow aerosol mixture.

Description

The utility model relates to the field of fire extinguishing, in particular, to devices generating gas aerosol combustion inhibitors generated during the combustion of a pyrotechnic composition and organized into a protected volume, and is intended for localization and elimination of fires at the initial stage of development in a conditionally sealed volume: distribution devices of electric networks and communications, radio relay and telephone transponders, closed engine compartments and cargo compartments of vehicles, etc.

It is known from RF patent No. 78676, class A62C 11/32, published December 10, 2008, a device for volume aerosol fire extinguishing by generating gas aerosol combustion inhibitors generated by the combustion of a pyrotechnic composition, containing a metal perforated body in the form of a cup, a binder is placed inside the body, charge of an aerosol-forming composition (AOS) and a unit for initiating a charge ignition with the formation of a receiver at the open end of the nozzle connected by communication holes with a reversible the front channel formed by a metal perforated body and a perforated metal shell placed with a gap filled with a binder in a cylindrical metal casing.

From the patent of the Russian Federation No. 8020, class A62C 19/00, published January 27, 2009, there is known a device for volume aerosol fire extinguishing of operational fire, consisting of a body made of two dish-shaped containers, fastened together with a gap, with the formation of an annular exit nozzle. AOS charge is placed in the case, made of two parts, each of which is placed in one of the containers of the case. The device comprises an ignition unit and a bracket with handles mounted on the housing opposite the gap between the containers of the housing, while the ignition unit is located under the handle of the bracket. In each tank, on the bottom and on the inner surface of the sides, there is a heat-protective layer made of gypsum-containing material with reinforcement from a metal mesh, or from crystalline hydrates reinforced with non-combustible material. Also, the device is equipped with a device for delaying the initiation of a charge of sufficient duration to prepare and deliver the charge to the fire.

From RF patent No. 2389524, class A62C 13/22, published May 20, 2010, there is known a device for volumetric aerosol fire extinguishing containing a perforated metal case in the form of a cup, a binder, an aerosol forming charge (AOS) and an ignition charge initiation unit placed inside the case with the formation at the open end of the receiver glass, connected by communication holes with a reversible annular channel formed by a metal perforated body and a perforated metal shell, times eschennoy with the gap filled with a binder in a cylindrical metal casing, closed metal lid, the chamber placed under the cover and exhaust openings arranged on the cylindrical metal casing near a metal lid and / or thereon. The device is equipped with a limiter mounted on the casing above the cover, and the casing is equipped with a protective metal mesh located in its upper part under the outlet openings of the casing and / or cover.

This technical solution was taken as the closest analogue. Its disadvantages include multi-linking, which makes the structure quite complex in composition and laborious to manufacture, in addition, the device does not have the ability to work in automatic mode due to the lack of an autonomous power source, which reduces its operational capabilities.

The technical problem for which the claimed utility model is intended is to create an aerosol fire extinguishing device in the form of a module capable of extinguishing fires in an automatic mode.

The technical result for which the claimed utility model is intended is to simplify the design, compactness, expand operational properties.

Obtaining the indicated technical result is ensured by the fact that the claimed utility model comprises a housing, an aerosol forming charge placed in the housing, a charge ignition initiating unit, a binder for cooling the aerosol mixture, openings for the exit of the aerosol mixture from the housing, further comprising an autonomous power supply and a remote control manual control, the holes for the exit of the aerosol mixture are slotted, radially located on the end of the housing, and q these holes disposed flow deflector aerosol mixture.

The claimed utility model is performed in the form of a module 1, shown in figure 1 (types “a” and “b”), which contains a housing 2. Inside the housing is placed a charge 3 of an aerosol forming composition (AOS), an AOS charge ignition initiating unit 4, a binder for cooling the aerosol mixture (not shown in FIG. 1). In addition, the module contains an autonomous power source 5 and a hand control unit 6.

The housing 2 is equipped with eyes 7, designed to attach the module to any surface of the protected object.

Node 4 initiating the ignition of the charge AOS is a linear thermal detector. It is made of double wire in double insulation.

The cores are made of a special alloy and intertwined so that there is a guaranteed force that tends to close them. The core insulation is made of a polymer material that loses mechanical strength at a given temperature, for example, 68 ° C, 92 ° C, 138 ° C. The linear thermal detector is connected to the control line between the autonomous power source and the AOS charge in such a way that when the threshold temperature is reached, the destruction of the insulation between the conductors of the linear thermal detector causes a circuit closure, an electric pulse and, accordingly, the module trips. A terminal block can also be placed at the end of the linear thermal detector to connect additional fire detection circuits.

The electrical circuit of the module is in no way connected with the electrical systems of the protected objects and ensures the module is activated from the autonomous power supply included in it.

Holes 8 are made on the end wall of the casing (Fig. 1, view “b”), designed to exit the aerosol mixture after the module is triggered. These holes are slotted and arranged radially, which ensures uniform discharge of the aerosol mixture formed to the ignition site. In front of these holes, an aerosol mixture reflector is installed, which dampens the high-temperature aerosol flows, which helps to preserve surfaces near the module.

The module can be started up in a manual mode by means of a button mounted on the housing of the handheld remote control 6.

The principle of operation of the module is based on the inhibition of chemical combustion processes by highly dispersed particles of alkali metal salts released during the combustion of an aerosol-forming charge and capable of being suspended in the room air for a long time. Fire extinguishing aerosol is chemically neutral, it is an insulator, it is easily soluble in water and at a working concentration is non-toxic.

The aerosol fire extinguishing module is installed inside the protected volume; it starts automatically when the ambient temperature rises above 68 ° C, 92 ° C, 138 ° C. When the ambient temperature reaches the threshold value, the insulation between the conductors of the linear thermal detector is destroyed, which leads to circuit closure and the supply of an electric pulse to the AOS charge. The AOS charge is ignited and its gaseous products of combustion through slit-like openings uniformly and with a lower temperature enter the protected volume, providing a fire extinguishing process.

Claims (1)

An automatic aerosol fire extinguishing module, comprising a housing, an aerosol forming charge placed in the housing, a charge ignition initiation unit, a binder for cooling the aerosol mixture, openings for the exit of the aerosol mixture from the housing, characterized in that it further comprises an autonomous power source and a hand control panel, openings for the exit of the aerosol mixture are made slit-like, radially located on the end part of the body, while a reflection is placed in front of the holes Tel flow aerosol mixture.

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