Portable fire extinguisher

FIELD: fire-prevention facilities.

SUBSTANCE: invention relates to portable fire extinguishing units. The portable fire extinguisher comprises a portable fire extinguishing unit which is a stored-pressure extinguisher. The fire extinguisher is filled with non-flammable liquid, with a hand operated lock-start gear and a system of liquid supply with the foam generator. Additionally it comprises a gas supply system which comprises a microswitch. The microswitch is mounted on the lock-start gear so that when starting the fire extinguisher the compact compressor is switched on simultaneously. The compressor is powered by a portable battery pack.

EFFECT: increased efficiency of fire extinguishing of different classes by the use of high-expansion air filled foam.

3 cl, 2 dwg

 

The invention relates to portable fire-extinguishing installations, in particular for fire extinguishers.

Closest to the technical nature of the object of the claimed invention is an installation realized in the fire extinguisher, described in the patent of the Russian Federation No. 2429037, AS 13/64 (prototype), and contains a container of fire extinguishing fluid, the system liquid displacement from the container, including the siphon tube, trigger-locking device that is connected to the outlet of the siphon tube, restrictor flow rate to regulate the cross-sectional area of the flow channel depending on the fluid pressure in the tank, the spray liquid output nozzle and the piping that connects the output of the trigger-locking device with the spray liquid.

A disadvantage of the known device is relatively low efficiency of fire and irregularity of liquid supply and the low degree of dispersion of the fire extinguishing stream.

The technical result - improving the efficiency of fire fighting different classes through the use of high air-mechanical foam.

This is achieved by installing mobile-containing fire fighting portable extinguishing agent representing the extinguisher injection type, filled with non-flammable liquid, with a closing Muscovy is the manual type and the system fluid with foam generator, additionally contains a gas supply system (air), which includes a microswitch mounted on the trigger-locking device in such a way that at the start of the fire extinguisher at the same time, a compact compressor operating from a portable battery pack.

Figure 1 shows a diagram of a mobile fire extinguisher, figure 2 presents the scheme of the foam generator.

Mobile fire extinguisher contains a portable extinguishing agent 1, representing the fire extinguisher injection type, filled with non-flammable liquid with a trigger-locking device 2 manual type and system 3 the fluid (for example, in the form of a cone), the gas supply system (air), which includes the microswitch 4, mounted on the trigger-locking device 2 in such a way that at the start of the fire extinguisher at the same time, compact compressor 6, working from a portable battery unit 5, for example a voltage of 12 Century Compact compressor 6 through the duct 7 delivers compressed air into the foam generator 10 through an annular nozzle 9. Non-flammable foaming the liquid flows through the trigger-locking device 2 manual type, and system 3 the fluid and the pipe 8.

The medium expansion foam generator and high range (figure 2) includes a housing 11 made in the form of a cylinder is centred on glass (figure 2), with a horizontal axis coaxial with the axis of the nozzle 13, and 17 of the mounting nozzle 13 to the supply line of water or foam solution (not shown). On the output side of the foam to the housing 11 coaxially attached confuser 12, and the junction of the body 11 and confuser 12 installed grid 20 or package of grids within a housing 14 (not shown). For ease of carrying and use the foam generator is equipped with 18 and transverse to the longitudinal handles 19, between which is located the yoke 21 with a bleed compressed air from the compact compressor 6, the closing holes 22 for feeding into the housing 11 of the compressed air, which increases the ratio of the foam.

The nozzle 13 is fixed to the body 11 of the foam generator through a variable-length elements 16 to the bottom of the case 11 by means of plates 15, through which the nozzle 13 is set at a certain distance relative to the surface of the grid or set of grids 20, depending on the multiplicity and range of a jet. Thus the longitudinal handle 19 is able to be attached to the cylindrical surface of the housing 11 along its generatrix lines at locations corresponding to the changed length of the fastening elements 16.

Mobile fire extinguisher works as follows.

Portable extinguishing agent 1, representing the fire extinguisher injection type, fill in the non-flammable liquid and gas, configure trigger-locking device so that when pressing the trigger injection fire extinguisher at the same time included: system 3 the fluid (water), gas (air), served in the foam generator 10 two streams: the first is the flow of liquid from the extinguisher through the pipeline 8, the second flow of compressed air through the annular nozzle 9 in the holder 21 of the foam generator.

The generator works as follows. From the nozzle 13 into the housing 11 is supplied with water or foam solution, which forms a jet, a rich air from compact compressor 6 through the packet mesh 20, the stream is divided into small fractions, and exits through the confuser 12, increasing the speed and the ratio of the foam. Even with the boundary conditions of the generator, i.e. at low pressure foaming solution at the inlet of the foam generator (8 ATM.) and low ambient temperatures (-15C) foam, under pressure generated by the foam generator, served in a given object, where it forms spreading on the surface of an object, persistent, not destroyed by fire film, which stops the oxygen in the combustion zone and the fire stops.

The extinguishing effect of the foam-based insulation surface burning liquid oxygen from the air and the heated combustible vapors emitted from the surface of the liquid. Penne only dramatically reduces the evaporation process, but also cools the surface of a burning liquid. Air-mechanical foam is formed by mechanical mixing of air and surfactant (foaming agent IS 1 or 6). In air-mechanical foam contains about 90% (by volume) of air and 10% aqueous solution of the foaming agent. To extinguish fires effectively apply high air-mechanical foam, which contains about 99% (by volume) of air 0,96% water and about 0.04% of foaming agent. The multiplicity of conventional air-mechanical foam 812, and the high is over 100. The resistance of the air-mechanical foam: from 20 to 40 minutes

The foam should be applied to the burning of cotton fiber other poorly wettable fibrous materials. Especially effective foam for extinguishing fires of flammable liquids (flammable liquids), as well as flammable liquids.

1. Mobile fire extinguisher containing a portable extinguishing agent representing the extinguisher injection type, filled with non-flammable liquid with a trigger-locking device manual type and the system fluid with foam generator, characterized in that it further comprises a gas supply system, which includes a microswitch mounted on the trigger-locking device in such a way that at the start of the fire extinguisher at the same time compact compressor, working from a portable battery pack.

2. Mobile fire extinguisher according to claim 1, characterized in that the generator includes a housing made in the form of a cylindrical Cup, with a horizontal axis coaxial with the axis of the nozzle, and means mounting the nozzle to the pipe feeding water or foam solution, and on the output side of the foam to the body coaxially attached confuser, and at the junction of the body and confuser installed grid or set of grids in the holder, and for ease of carrying and use the foam generator is equipped with transverse and longitudinal handles, between which there is a clip with a bleed compressed air from the compact compressor, closing holes for filing in the case of compressed air, which increases the ratio of the foam.

3. Mobile fire extinguisher according to claim 1, characterized in that the nozzle of the foam generator is attached to the housing by means of variable-length elements to the bottom of the casing by means of plates, through which the nozzle is set at a certain distance relative to the surface of the grid, depending on the multiplicity and range of a jet, while the longitudinal handle is able to be attached to the cylindrical surface of the shell along its generatrix lines at locations corresponding to the changed length of the fastening elements.



 

Same patents:

FIELD: fire safety.

SUBSTANCE: device for fire extinguishing comprising a cylinder with fire extinguishing agent and a device to determine its weight in the cylinder, comprises a sensor of weight and an electronic unit. The sensor of weight is made in the form of a segment of coaxial long line formed by a complex of a siphon tube and a metal pipe located outside coaxially with respect to it, between the lower ends of which reactive resistance is connected. Reactive resistance can be made equal to zero when short-circuiting of the lower ends of the siphon tube and the metal pipe or inductive.

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3 cl, 2 dwg

FIELD: fire-prevention facilities.

SUBSTANCE: invention relates to the field of fire fighting, namely to devices that generate gas-aerosol fire retardants designed for extinguishing fires in closed or semi-enclosed volumes. The extinguishing aerosol generator comprises a cylindrical housing and body with a lid and bottom, a mixing chamber, and also an activator and the pyrotechnic charge. The housing and the body are coaxially mounted with each with an annular gap for induced air. The mixing chamber is formed by the side walls of the housing. The pyrotechnic charge is set inside the body with provision of the possibility of formation of an ejecting aerosol chamber. Inside the body there is a layer of material cooling the aerosol. The generator is made with the ability of aerosol release to the protected area. The cylindrical housing and the body are interconnected coaxially. The bumper is installed parallel to the bottom which is fixed providing partial overlapping of the lateral surface of the body and forming around the body of an annular nozzle for ejecting aerosol release. The layer of the aerosol cooler is placed in series with respect to the pyrotechnic charge to form additional free volume with the function of combustion chamber. The ejecting aerosol chamber is formed between the bottom of the body and the bumper. The bottom is made perforated.

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FIELD: medicine, fire-fighting means.

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FIELD: fire-fighting means.

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5 cl, 3 dwg

FIELD: fire safety.

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FIELD: fire safety.

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2 cl, 3 dwg

FIELD: fire-fighting means.

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1 dwg

FIELD: fire-fighting means.

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FIELD: fire-fighting, particularly for extinguishing fires on transport and in rooms.

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Aerosol generator // 2256474

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10 cl, 4 dwg

Fire extinguisher // 2265467

FIELD: fire-fighting equipment, particularly rechargeable portable fire-extinguishers in which fire-extinguishing substance is stored under pressure created by propellant gas.

SUBSTANCE: fire-extinguisher comprises siphon pipe, shutoff-and-triggering device connected to siphon pipe outlet and flow restrictor. Liquid sprayer comprises centrifugal liquid flow swirler and outlet nozzle. Liquid sprayer is connected to shutoff-and-triggering device outlet through pipeline. Outlet liquid sprayer nozzle is formed with profiled channel. Profiled channel inlet is attached to liquid flow swirler outlet. Profiled channel converges in flow direction. Nozzle channel may be formed by inlet converging section and outlet diverging section arranged in series. Profiled channels may define cone or conoid in cross-sections. Centrifugal liquid flow swirler is made as cylindrical insert with axial and tangential channels. Liquid flow restrictor is installed in front of shutoff-and-triggering device inlet to regulate channel area S in dependence on vessel pressure. Area S may be selected from the following condition: 0.5Sc≤S≤2.5Sc, where Sc is minimal area of profiled outlet nozzle channel. Liquid flow restrictor may be formed as valve having movable part having channels in side wall thereof and immovable part coaxial to movable one.

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7 cl, 4 dwg

FIELD: masking.

SUBSTANCE: the masking foam material is dispersed by means of a pulse distributor, which is preliminarily installed on the surface of the background and/or object in compliance with the plan of masking. The pulse distributor by means of a supply network is connected to the control panel, having an electric power source, or it is provided with a radio command actuator with an electric power source, and connected to a radio command control panel. The time and procedure of actuation of the pulse distributor is selected in compliance with the plan of masking. The pulse distributor of masking foam material has a sealed body with a solution. The body with the source solution is provided with a siphon, two valves and a guide. A packing having an opening and distribution assembly, actuating and safety, assemblies, is installed on the body neck. The body neck is integrated with the siphon cylinder, and a splash-out monitoring system is additionally installed on the device body, aligned with the stopper of the packing safety assembly. The valves are installed at the upper and lower levels of the body.

EFFECT: enhanced efficiency of masking.

17 cl, 5 dwg, 1 tbl

FIELD: fire-fighting equipment, particularly hand-held fire extinguishers charged with foam fire-extinguishant.

SUBSTANCE: fire-extinguisher comprises cylinder having neck closed with closure and handle connected to rod. Rod is linked to shutoff means made as two semi-spheres and arranged in body. The body is provided with orifices and is located below level of cylinder filling with alkaline solution. Cup with acid fire-extinguisher charge component is located in lower body part. Diaphragm is arranged in cup base. Ready foam passes from cylinder through spraying means.

EFFECT: improved fire-extinguishing capacity due extended range of technical capabilities and increased service life.

2 dwg

Gas generator // 2286844

FIELD: mixing.

SUBSTANCE: gas generator comprises housing provided with means for gas discharging made of openings on the side of the housing and gas generating and igniting charges mounted inside the housing and made of pyrotechnical compositions. The initiating member is mounted on one of the faces, and filter is mounted on the side and faces of the gas-generating charge. The surface of the gas-generating charge is armored from the side of the gas outlet. The auxiliary charge is mounted axially symmetrical in the gas-generating charge and is provided with layers that pass from the axially symmetrical layer to the periphery and connected with them.

EFFECT: enhanced reliability and expanded functional capability.

4 cl, 1 dwg

FIELD: chemical industry; the portable devices for the fire extinguishing.

SUBSTANCE: the invention is pertaining to the field of the fire-fighting equipment, in particular, to the portable fire extinguishers (manual, pistol, pack) and may be used for fire extinction by feeding of the fire-extinguishing agent (fluid, powder) to the center of inflammation. The stated technical solution allows to improve the operational capabilities and its usage convenience due to expansion of the range of the used fire-extinguishing matters, minimization of time used for replacement of the pressure forming means, provision of the possibility to correct the volume of the gas-generating composition according to the existing need at the simultaneous increase of effectiveness of operation due to the maximum utilization of the internal volume of the container and elimination of the unproductive feeding of the gas. The represented portable fire extinguisher has the container for the fire-extinguishing matter and the gas-generating tool for creation of the operational pressure. The portable fire-extinguisher singularity consists, that it is supplied with the a control unit, the pressure sensor located in the container, at that the gas-generating tool is made in the form of at least two gas generators arranged in the airproof cassette mounted outside the container and linked with it by means of the high-speed coupling, and the control unit interacts with each gas generator with provision of their consecutive actuation.

EFFECT: the invention ensures the increased effectiveness of operation, the improved operational capabilities, convenience of usage, expansion of the used fire-extinguishing matters, minimization of the time for replacement of the pressure forming means, the possibility to correct the volume of the gas-generating composition.

3 cl, 1 dwg

FIELD: spraying devices adapted for degassing, deactivation and disinfection of military and civil machinery, for animal and plant treatment and fire-extinguishant spraying during fire suppression.

SUBSTANCE: spraying device comprises body, neck, high-pressure cylinder, locking-and-triggering head and filling-and-draining pipe. Air-tight casing is installed in through stepped orifice made in inner side of locking-and-triggering head. The casing is made as sleeve to receive high pressure cylinder arranged in chamber thereof. The high pressure cylinder has tearable diaphragm. Gas channel is defined between the sealed casing and high pressure cylinder. Gas channel throat is 0.1-0.12 of sleeve cross-sectional area. Sleeve mouth is provided with collar having outer thread. Check valve is installed in sleeve bottom. Sleeve bottom may adjust high pressure cylinder in axial direction. Punching mechanism is installed in through stepped orifice and is located from outer side of locking-and-triggering head. Maximal distance between outer surfaces of filling-and-draining pipe and casing is not more than 0.9 of inner neck diameter.

EFFECT: increased operational reliability, enlarged storage period, possibility of device filling with aggressive, erosive compositions and solutions.

2 cl, 2 dwg

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