SU1461481A1 - Method of displacing extinguishing substances from flame-suppressing device - Google Patents

Abstract

The invention relates to fire fighting equipment and can be used to supply extinguishing agents from flame suppressing devices. The aim of the invention is to increase the efficiency of the flame suppressor, their devices. The essence of the technical solution is that the extrusion of fire extinguishing substances is produced by gases obtained as a result of fuel and oxidant conversions, which are ignited by mutual control, supplied to the reaction chamber in certain ratios. In order to reduce the ignition delay of the fuel and the oxidizing agent, it is initiated by physical or chemical methods. Catalysts are introduced into the zone of contact between the fuel and oxidant to control the rate of the reactions. 2 l. f-ly, 1 ill.

Description

The invention relates to fire fighting equipment, in particular, to methods for supplying fire extinguishing substances from flame suppressive devices.

The purpose of the invention is to increase the efficiency of the flame suppressor devices.

The drawing shows a diagram of the device for implementing the proposed method

According to the proposed method, the supply of extinguishing substances from flame suppressing devices occurs by creating an overpressure in the casing and using gases (vapors) formed as a result of phase transformations of gases, the gases (vapors) are obtained by converting the fuel and oxidant, which are flammable. with mutual contact (mixing), which are fed into the reaction chamber in certain ratios, and to reduce the ignition delay, the fuel and oxidant are produced

initiation by physical or chemical methods, and catalysts are introduced into the contact zone of the fuel and oxidant to regulate the rate of reactions.

The method can be carried out by various combinations of fuel and oxidizer, including their aggregate state (fuel and oxidant liquid, liquid fuel - powder oxidant, fuel combustible - liquid oxidizer, etc.), and as a result, flame suppressors can vary significantly in design.

The drawing shows a diagram of a device that uses fuel - kerosene (one part), oxidizer - nitrogen tetroxide NaiO (4 parts), initiator - asymmetric dimethylhydrazine (CHzjNNH (up to 20% by weight of kerosene), which are in a liquid state.

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For supplying the liquid components to the reaction chamber, a pressure accumulator system with a pressure accumulator is used, and the pressure plate is connected to the cavity of the reaction chamber to equalize the pressure above the piston space. When a fire develops in a protected room, its detection sensor is triggered, the converted pulse of which turns on the system of synchronous supply and injection of fuel, oxidizer and initiator into the reaction chamber in certain ratios. Upon contact of the fuel, oxidizer and initiator, the latter ignite and as a result of the conversion gases are released.

the use of catalysts makes it possible to regulate the rate of transformations.

Claims (3)

1. A method for displacing extinguishing agents from flame suppressing devices by creating an overpressure in the casing of the flame suppressing devices, formed by phase transformations of the substances in the casing of the device, characterized in that in order to increase the efficiency of the flame suppressors ijCOyi lDiCllV jjj, i i Mi 4 jjfc., -.- K,.-..--- tt (couples) which increase the pressure in 15 devices, as substances use „,,„ “,„ „„ l tl.tll TJ / m s / tryplP1, flame suppressor housing. When the specified pressure is reached, the sealing membrane breaks and the extinguishing agent through the nozzle is fed into the protected space. The invention makes it possible to increase the efficiency of the flame suppressor devices by reducing energy consumption, expanding the list of fire extinguishing substances used, and maintaining a constant pressure operation in the flame suppressor body during its 25 operation, since the time required to feed the components into the reaction chamber is comparable to the time the release of fire retardant and oxidizer, when a fire alarm occurs, the substances are displaced, and displacement is effected by gases arising from the reaction of the fuel and oxidant during displacement. 2. A method according to claim 1, characterized in that the initiation is carried out by physical or chemical methods in order to reduce the ignition delay of the fuel and the oxidant. 3. A method according to claim 2, characterized in that catalysts are introduced into the zone of contact of the fuel and oxidant to expand the reaction rate. the use of catalysts makes it possible to regulate the rate of transformations. Invention Formula 1. A method for displacing extinguishing agents from flame suppressing devices by creating an overpressure in the casing of the flame suppressing devices, formed by phase transformations of the substances in the casing of the device, characterized in that in order to increase the efficiency of the flame suppressors tt devices, as substances use. tll TJ / m s / tortlP1, ppi devices, as substances use. tll TJ / m s / tortlP1, ppi the fuel and the oxidizer, when a fire signal appears, the substances are shifted, and the displacement is carried out by gases arising from the reaction of the fuel and the oxidant during the shift. 2. A method according to claim 1, characterized in that the initiation is carried out by physical or chemical methods in order to reduce the ignition delay of the fuel and the oxidant. 3. A method according to claim 2, characterized in that catalysts are introduced into the zone of contact of the fuel and oxidant to expand the reaction rate. offfovee Akkupul tar pressure Initiator Oxidizer Gamladny channels Reaction chamber Frosting agent I seal / / schA memorandum