Throw-type fire-extinguishing device
FIELD: fire-fighting means.
SUBSTANCE: invention relates to fire-fighting equipment, in particular to devices generating gas-aerosol mixture of inhibitors of burning, and is intended for volumetric extinguishing of fire in closed premises by hand throwing of the device into fire centre. Device contains case consisting of two plate-shaped reservoirs, counter-fixed, with their flanges forming ring outlet nozzle for generated gas-aerosol mixture during burning of pyrotechnical charges, installed in each case reservoir through layer of construction gypsum, and unit of ignition, located under radial handle. Unit of ignition is installed in threaded bush of mounting clamp, fixed coaxially to through hole in reservoir, blocked with foam-plastic stopper and adjacent to fire-conducting inclined canal of communication with clearance between free butt ends of pyrotechnical charges, installed aflush with reservoir flanges. Both charges are autonomously packed in polymer film jackets, nozzle being formed by matching convexes, made on supporting surface of flanges and layers of construction gypsum being reinforced with metal mesh.
EFFECT: increase of action efficiency and reliability.
3 cl, 2 dwg
The proposed invention relates to fire fighting equipment, in particular to a device that generates gas-aerosol mixture of combustion inhibitors, and is intended for surround suppression fire in confined spaces by manually throwing device in the fire.
The level of this technology is characterized extinguishing device described in patent RU 2237503, AS 13/22, 3/00, 2004, which contains the site of initiation (ignition), a body composed of two counter-sealed containers disc shape with a gap between their flanging, forming an annular outlet nozzle, and attached to each tank through the heat-shielding layer of gypsum pyrotechnic charges, the combustion of generating fire extinguishing gas-aerosol mixture.
A feature of the described device is to perform site initiation in the form of the filled adhesive igniter composition resistor placed between the pyrotechnic charges, the diameter of which 1.7-2.5 times less than the overall diameter of the device, while flanging containers filled construction gypsum, forming a disk-lined nozzle.
The ignition of the two parts of the charge occurs from the center rapidly, almost instantaneously throughout the open ends surface.
The area of the disk nozzle outlet in a noticeable previse is the area of the critical section at its input, that provides enhanced fire extinguisher flow by increasing the speed of expiration, which allowed us to mount the pyrotechnic pieces flush with the lining flanging tank corps.
The additional effect of lining flanging tanks housing construction gypsum is that automatically throughout the disk nozzle extinguishing gas-aerosol mixture is actively cooled by contact to the evaporating water.
However, the continuation of the advantages of an inherent flaw: the inability to use the fire extinguishing device as throwing grenades for primary suppression fire in an enclosed volume, with the aim of further active extinguishing after the associated drop in temperature.
Described the massive generator fire extinguishing mixture is stationary and is designed to function for Autonomous automatic extinguishing the fire from the temperature sensors or smoke.
For manually throwing the design unusable due to ballast the content of the heat-shielding layer and the lining nozzle construction gypsum, low efficiency of fire extinguishing relatively small pyrotechnic charges and lack of funds to manual startup.
Noted shortcomings in throwing fire-extinguishing device according to patent RU 216409, AS 19/00, 2001, which for the purpose and number of matching characteristics is selected as the closest analogue suggested.
The known device comprises generating gas-aerosol mixture pyrotechnic charge consists of two parts, each of which is fixed through a bearing thermal insulation layer of gypsum in the capacity of disc form, forming the body. The vessel hull is bonded to the opposite a gap between the flanging, forming an annular outlet nozzle.
Under radial arm-bracket coaxially with the nozzle mounted node ignition grating type.
The free end of the pyrotechnic charge is below flanging than it forms a receiver for the accumulation and mixing generated extinguishing mixture, pressure equalization before the uniform jet after in a circle in the protected volume.
The disadvantage of this missile fire extinguishing device is the poor efficiency of the primary steps at a relatively low filling ratio because of the structural arrangement of the free ends of the pyrotechnic charges below flanging tank corps, necessary for the formation of a receiver, through which organized the specified thermodynamic regime expiration extinguishing gas-aerosol mixture through adjoining Lavoe output nozzle.
It's a quarter reduces weight functional pyrotechnic charge and, consequently, the protected volume at the specified limit of the concentration of aerosol fire retardants.
Coaxial output nozzle location node-manual ignition grating type (under the bracket-arm) is inconvenient in operation for mobile use in extreme situations due to limited workspace.
In addition, the device is not sealed, which reduces the functional reliability and service life limits the scope of use in conditions of high humidity atmosphere.
The foam gasket between the free ends of the pyrotechnic charges required for their isolation in official circulation from atmospheric moisture, is a physical obstacle to the spread of initiating thermal pulse from a host of ignition that, at least, does not improve conditions agriproduce and ignition charges over the entire surface of face burning.
Task to be solved by the present invention is directed, is to increase the efficiency of the basic steps and functional reliability by appointment.
The required technical result is achieved by the fact that in the known missile fire extinguishing device comprising a housing of two containers disc four is s, bonded counter, with the flange to form an annular outlet nozzle for the generated gas-aerosol mixture during combustion of pyrotechnic charges that are installed in each tank body through a layer of gypsum, and a host of ignition is located under the radial arm, according to the invention, the node ignition is installed in the threaded bushing mounting bracket, mounted coaxially with the through hole in the tank, covered with foam cover and adjacent to opperational inclined channel message with a gap between the free ends of the pyrotechnic charges that are installed flush with the flanging tanks, both Autonomous charge Packed in plastic film covers, and a nozzle formed through combining UCLA, performed on a supporting surface flanging, and a layer of gypsum plaster reinforced with metal mesh.
The distinctive signs provided stability for mobile convenient manual initiation of the operation of the device, a noticeable increase functional reliability, technological availability of structural elements for routine maintenance: routine inspection and repair.
Mount on one of the tanks hull mounting brackets with the screw sleeve for installation of node ignition creates a shift in the th location under the arm - below the output of the ring nozzle, which ensures that the node ignition for manual initiation and frees the handle for easy grip with the wrist in an extreme situation for throwing generator in the fire.
The host ignition coaxially through the hole in the tank shell provides structural unity of the circuit agriproduce the force of the flame to the free ends of the pyrotechnic charges that form the technological gap.
Running inside inclined pyrotechnic channel adjacent to the communication through-hole in the tank corps on the one hand and cross the gap between the free ends of both of the pyrotechnic charges on the other hand, is designed to transmit a firing pulse from the point of ignition when running on the simultaneous ignition of functional checkers across the face of the burning.
Installation of pyrotechnic charges flush with the flanging of the tank body generates when run in the General equal bore, gasovod in the gap between the free ends of the charges, combined with the annular outlet nozzle, promoting smooth, practically simultaneous over the entire surface, stable ignition of both pyrotechnic charges.
Packaging pyrotechnic charges in plait the internal polymer case creates their Autonomous integrity and allows the technological gap between the free ends of the pyrotechnic charges open for the dynamic distribution of thermal initiator the impulse.
Mechanically pressed foam insert between the node ignition and tank corps provides isolation communication connector opperating inclined channel of the through hole in the container.
Distributed by flanging pukli measuring the height with the combination of coaxial holes in them under the fastener during Assembly of the two containers housing automatically form a ring output a given nozzle orifice (the gap between the charges), without the use of additional funds.
Equipment thermal insulation layer of gypsum plaster reinforcement mesh significantly increases its dynamic strength (up to 5g) and functionality appointment with distance throwing devices, and carrier solidity of generator fire extinguishing mixture as a whole.
Therefore, every significant topic are needed, and their combination in a stable relationship are sufficient to achieve the novelty quality, extrinsic signs of dissociation, that is supplied in the invention technical problem is solved not by the amount of effects and new shoreface amount of signs.
The essence of the proposed invention is illustrated by drawings, which are purely illustrative purpose and do not limit the scope of the claims set of features of the formula. In the drawings, zobrazeno:
figure 1 - view of the device from below;
figure 2 is a section along a-a in figure 1.
In disc shaped metal containers 1 of the device installed pyrotechnic charge 2, placed in a film (0.3 mm) double plastic case 3.
Each charge 2 with a capacity of 1 (figure 2) is bonded by heat-shielding layer 4 of gypsum (GOST 125-79), which conditions may be reinforced with metal mesh 5 (No. 8-0,1 according to GOST 533-67).
The container 1 of the body are interconnected counter by means of bolt fasteners 6, mounted in the holes with UCLA 7, performed on the abutment surfaces flanging 8 each tank 1.
Total height combined with UCLA 7 is a transverse width of the gap 9 between the free ends of the charges 2 located at the same level with the flanging 8 (flush), and generates the flow area of the annular outlet nozzle 10.
In the transverse gap 9 on two bolts 6 fasteners fixed radial arm 11 (Fig 1).
Under the arm 11 at the bottom of the drawing (Fig 1 and 2), the container 1 is fixed to the bracket 12 with a threaded sleeve 13, which is screwed node 14 ignition, coaxial communication through-hole 15 in the tank 1.
Hole 15 (2) covered with foam insert 16, is pressed screwed node 14 of the ignition.
To the communication hole at back is July 15 adjacent inclined opperational channel 17 messages made in pyrotechnic charge 2, which is published on the free end surface, i.e. in the transverse gap 9.
The channel 17 is formed in the pressing of charge 2 and pouring gypsum on the Assembly through the installation process token.
The end of the foam plugs 16 are covered with a protective layer of varnish, which prevents the penetration of atmospheric moisture inside the device.
When assembling the pyrotechnic charge 2 installed at the bottom of the tank 1, where the reinforcing metal mesh 5 in the layer of mortar, gypsum, and with the effort of implementing it to align the free end flared 8 flush.
Then in the gap between the pyrotechnic charge 2 and the side surfaces of the container 1 is poured a solution of gypsum, solidification of which is formed a bearing thermal insulation layer 4, connecting structural elements in a monolithic structural unity.
Further prepared two Assembly kit connect the counter, combining their pukli 7 on the flanging 8, and fasten the mounting bolts 6, two of which are pre-mounted to the handle 11.
Before throwing device ("grenade") manually initiated by the node 14 of the ignition, the force of the flame which burned the foam blank 16
Node 14 ignition is supplied by means of the time delay for the initiation the Finance combustion of the pyrotechnic charge 2 duration, sufficient for the preparation and delivery device in the fire.
Handle 11 device manually scale were in the scope of the burning building through the window opening, door, then slam.
Thermal impulse forth by an inclined channel 17 is passed into the gap 9, where ignite the pyrotechnic charge 2 with the open end surfaces almost instantly.
During combustion of the pyrotechnic charge 2 is generated aerosol mixture of combustion inhibitors, which is expanding jet stream extends through an annular nozzle 10 into the protected volume, where suppressed the fire.
Evaporation associated with gypsum layers 4 water provides dilution extinguishing mixture of more environmentally friendly fire retardant and decrease of its temperature at the outlet of the annular nozzle 10.
Inkjet high-speed expiration of the generated aerosol products provides injection of ambient air, is further cooled and diluted stream, the filling volume of the protected space and creating a fire extinguishing concentration of inhibitors burning.
The proposed device is intended for use as a primary means of fire suppression to the survey, in particular to de-energizing of the power grid, appliances and equipment, the Les which may extinguish the Straits water of technical means. It gives you online mobile win in fighting fires in enclosed volumes, such as engine compartments, electrical control, the cabin of a vehicle.
Layer 4 of gypsum have low thermal conductivity, which prevents heat transfer to the container 1 housing, which is not heated and may not cause a secondary fire in the protected volume.
The proposed missile fire extinguishing device is characterized by high mechanical strength, structural integrity, reliable insulation from burning inside pyrotechnic charges, stable gas dynamics generated aerosol products in the form of a disk stream.
Field tests of prototypes propelling device confirmed the effectiveness of firefighting and its functional reliability, which can be recommended to the customer industrial supply for operation.
The comparative analysis of proposed technical solutions to identified analogues of the level of the art from which the invention not obvious to a person skilled fire showed that it is not known, and given opportunities for industrial mass production throwing fire extinguishing devices in current production, it is possible to conclude that rela is availa able scientific C patentability criteria.
1. Throwing fire-extinguishing device comprising a housing of two containers disc shape, held together by a counter, with the flange to form an annular outlet nozzle for the generated gas-aerosol mixture during combustion of pyrotechnic charges that are installed in each tank body through a layer of gypsum, and a host of ignition is located under the radial arm, characterized in that the node ignition is installed in the threaded bushing mounting bracket, mounted coaxially with the through hole in the tank, covered with foam cover and adjacent to opperational inclined channel message with a gap between the free ends of the pyrotechnic charges that are installed flush with the flanging tanks, both charge offline Packed in plastic film covers.
2. The device according to claim 1, characterized in that the nozzle is formed by combining UCLA performed on a supporting surface flanging.
3. The device according to claim 1, characterized in that the layer of gypsum plaster reinforced with metal mesh.
FIELD: fire-fighting equipment.
SUBSTANCE: invention relates to equipment for fire-extinguishing with application of dispersed water (DW). Fire-extinguishing element represents airtight capsule, filled with fire-extinguishing liquid, material, form and dimensions of capsule being chosen on condition of providing steam explosion of fire-extinguishing liquid during short, within several seconds, time after beginning of cover heating by fire. Capsule is supplied with hollow shank end, volume of shank end cavity forming single volume with volume of capsule, filled with fire-extinguishing liquid, shank end length being chosen on condition of possibility of its sealing. Fire-extinguishing element is made from glass tube with specified diametre and thickness of wall by heating tube area until glass softening and extending tube in area of softening with formation of shank end. In area of shank end ending work piece is cut and bottom of capsule is formed from opposite to shank end side by heating work piece, then capsule is filled thought open shank end with fire-extinguishing liquid and sealed by soldering of shank end ending.
EFFECT: simplification of technology of obtaining efficient fire-extinguishing element.
FIELD: medicine, fire fighting equipment.
SUBSTANCE: device for extinguishing fire in the building contains a bomb that may be shot from a weapon which internal part of hollow body contains a fire-resistant material and a container with explosive charge and detonator connected with electric wires to actuators that are located inside the bomb on its surface. When any of the actuator strikes the surface of the building it triggers a detonator causing the charge to explode, spreading a fire-resistant material on the whole surface area within a radius of action.
EFFECT: development of an effective device to extinguish fire in the building.
4 cl, 3 dwg
SUBSTANCE: fire-extinguishing method involves delivering flame-suppression agent into fire site inside thin-walled closed vessels, where flame-suppression agent is heated to generate steam-and-gas mixture; isolating burning surface to prevent oxidizing agent ingress along outer surfaces of thin-walled closed vessels along with heat removing from fire site by provision of heat-exchange through thin wall and heating flame-suppression agent to create steam-and-gas mixture with hot gases generated in fire site. In fire-extinguishing device no additional flame-suppression agent heating source is required. Fire-extinguishing device includes thin-walled closed vessel filled with flame-suppression agent, which may be heated by heat-exchange through thin wall of the vessel. Flame-suppression agent heating results in multiple flame-suppression agent volume increase to generate steam-and-gas mixture.
EFFECT: increased efficiency.
5 cl, 1 dwg
FIELD: fire-fighting, particularly fire extinguishment in closed and opened space with the use of dispersed water.
SUBSTANCE: method involves using thin-walled sealed shells filled with water. The shells are delivered to fire site to extinguish fire. Water contained in the shells is dispersed by heat energy generated by fire. Shell dimensions are selected to provide shell explosions under the action of vapor as shells move through fire to be suppressed.
EFFECT: increased distance of water delivery and dispersed water efficiency, extended volume of fire extinguishment zone and decreased extinguishment time.
FIELD: fire-fighting, particularly aerosol generators for fire extinguishing used in stationary and movable systems to extinguish fire in vessels filled with inflammable liquid, in industrial objects and vehicles of all types.
SUBSTANCE: device includes a set of aerosol generators. Each aerosol generator has tubular body with aerosol-generation charge and container with fire-extinguishing powder arranged in the body. The aerosol-generation charge is provided with ignition member. Container with fire-extinguishing powder is arranged between gas-permeable grid and breakable membrane. Aerosol generator body consists of a number of tubular members to provide gas-permeable grid and breakable membrane fixation. Breakable membranes of each aerosol generator have different mechanical strengths and include weakening grooves formed at least in one plane thereof. Weakening grooves extend in radial direction and intersect in geometrical membrane center.
EFFECT: increased operational efficiency due to possibility of repeated device usage, increased technological effectiveness of device recharging and increased service life in static state.
3 cl, 5 dwg
FIELD: fire fighting, particularly hand fire-extinguishers in which the extinguishant is expelled by an explosion or exploding containers thrown into the fire.
SUBSTANCE: method involves filling sealed shells formed of gas-impermeable material with fire-extinguishant; throwing the filled shells with thrower and disintegrating the shells in fire site. The shells are of spherical or streamlined shape. Polyethylene film is used for shell forming. The shells are thrown with the use of pneumatic or mechanical devices.
EFFECT: increased range and accuracy of fire-extinguishing agent delivery, reduced fire-extinguishant losses.
2 cl, 2 dwg
FIELD: fire-fighting equipment, particularly manual fire-extinguishers for discharging fire-extinguishing composition with the use of dispersing charge.
SUBSTANCE: fire-extinguisher comprises polyethylene body filled with fire-extinguishing composition having groove-like weakened sections and actuation device including dispersing charge. In contrast with prior art fire-extinguishers above body is formed of two hemispheres with weakened sections made as a set of uniformly distributed non-crossing grooves. Each grove is formed in line of intersection between inner or outer hemisphere surface with plane tangential to cylindrical surface located coaxially to above hemisphere top. Each groove begins from end hemisphere surface and terminates in plane extending through opposite ends of two adjacent grooves and through hemisphere top. A number n of grooves formed on inner surface of each hemisphere, radius r of above cylindrical surface and radius R if inner hemisphere surface are related by the following correlation:
EFFECT: increased efficiency of extinguishing fires inside rooms containing furniture items distributed across room volume due to prevention of "dead" spaces formation, increased flow impulse and radius of fire-extinguishing composition flow spreading, increased fire-extinguisher strength .
2 cl, 5 dwg
FIELD: fire-fighting equipment.
SUBSTANCE: invention relates to firefighting equipment, namely to equipment for volumatric firefighting. In method for volumatric fire fighting, in industrial premises, consisting in the fact, that in premises installed are elements for firefighting with charge of smoke-forming composition, which are connected to each other with fire conductive fuses, made from material, which provides transmission of burning, elements are placed in volume of premises in such way, that their axes cross in geometrical center of premises, which is defined as point of intersection of rectangular parallelepiped or cube diagonals, fire conductive fuses connecting elements for firefighting with charge of smoke-forming composition, and forming closed quadrilateral with apexes, in which said elements are installed, each of said elements for firefighting is made in form of body with bead and outlet, equipment with charge of smoke-forming composition with unit of initiating, and outlet of body is closed with discontinuous membrane.
EFFECT: increase of reliability and efficiency of volumatric firefighting system.
3 cl, 6 dwg
FIELD: fire safety.
SUBSTANCE: proposed device generates gas-aerosol fire inhibitors formed in combustion of pyrotechnical composition and directs them in structure to be protected. It can be used in both independent and automated fire fighting systems. Generator comprises igniting unit and pyrotechnical grain fitted, via heatproof layer in perforated case coupled with receiver communicated with reversing annular channel closed by cover. It has also outlet holes and is separated from the case by heatproof layer. Said grain is packed in polymer film jacket and locked in the case by lengthwise plates and crosswise rod arranged in receiver perforations under grain free end face. Note that the case heatproof layer has two bolts fixed therein to support bracket with terminals of igniting unit electric communication. Note also that reflecting tray is arranged under said receiver.
EFFECT: higher mobility and reliability.
2 cl, 2 dwg
FIELD: medicine, fire fighting equipment.
SUBSTANCE: invention refers to devices generating gas-aerosol fire retardants produced after pyrotechnic compound combustion and arranged to be delivered in a protected capacity, and is used both in stand-alone, and in automatic fire-control units for inflammable and combustible substances, hard materials and energised electric equipment. The device comprises a perforated cupped metal case with a gap filled with a binding substance, an aerosol-forming compound charge and an initiation unit to form at the opened end of the cup a receiver connected via communication openings with a reverse ring channel formed between the perforated metal body and perforated metal shell ring placed with a gap filled with the binding substance, in a cylindrical metal casing closed by a metal cover, a chamber mounted under the cover, and discharge openings formed on the cylindrical metal casing near to the metal cover and/or thereon; it is equipped with a limiter fixed on the casing above the cover, and the casing is provided with a protective wirecloth in its upper part under the discharge openings of the casing and/or the cover; and the relation of the combustion surface area of the aerosol-forming compound charge to the total area of the discharge openings is within 10-30.
EFFECT: higher reliability of the device, and improved quality of an aerosol flow when eliminating the liquid fraction (K-phase) and usability of the device on various fire-fighting objects.
FIELD: fire safety.
SUBSTANCE: fire-extinguishing module comprises cylindrical tube closed at ends and filled with fire-extinguishing substance in liquid or gaseous condition under pressure, which is excessive versus environment. Mechanism of tube opening is arranged in the form of hollow body and yoke attached to one of its ends with clearance and with the possibility of pressing, on adjacent surfaces of body and yoke there are semi-cylindrical bores arranged as inverted towards each other and enclosing tube, and circular groove is arranged on surfaces of bores in middle part of body and yoke. Body is installed perpendicularly to longitudinal axis of tube, on free end of body there is cover fixed with central hole, in which initiation unit is mounted. On body bottom inverted to tube there is channel arranged, which communicates to circular groove, besides inside body there is solid fuel pyrotechnical blasting cartridge placed as made of aerosol-forming composition, including finely dispersed solid components, for instance soot, aluminium, ferric oxide. At least one blasting heat-sensitive cord is fixed on external side surface of tube.
EFFECT: improved performance and efficiency of module.
12 cl, 4 dwg
FIELD: fire safety.
SUBSTANCE: device for fire extinguishing contains generator for pyrotechnic unit burning, coupled with the means of distribution of the generated gas in the zone of fire. The device also includes means for regulating of the generated pressure to create a specific profile of oxygen concentration in the zone of fire. These controlling means can be executed, for example in the form of a controlled valve, or represent a special form of the pyrotechnic generator performance. The device is made with the possibility of fire extinguishing in aircraft engines, as it does not include halogen-extinguishing agent.
EFFECT: invention allows to control precisely the duration and level of fire protection zones.
24 cl, 6 dwg, 1 ex
FIELD: mechanics; fire-fighting equipment.
SUBSTANCE: invention relates to hardware with the principle of operation consisting in using suspended highly-dispersed solid particles, aerosols, as flame retardants, the aerosol being formed in burning of pyrotechnical grains and released in a protected chamber. Aerosol generator comprises the primer of grains distributed in a cylindrical heat-protected housing combined with the receiver communicating, via a pipeline, with the reverse circular channel formed by a heat exchanger, a casing and a tapered cover. The said casing and tapered cover are arranged reversed and partially overlapping to form an annular outlet nozzle, both being furnished with a heat-protection material interlayer. Note that the said cover rests upon the housing mounted on the central ledge of the casing. The said housing and casing are jointed together with the help of an axial rigging screw, the casing being arranged on a mounting plate with a heat-protection coating acting as a deflector. Note also that the pyrotechnical grains and receiver pipelines are fixed in the housing with the help of gypsum plaster.
EFFECT: simpler design, ease of manufacture, higher efficiency.
2 cl, 2 dwg
SUBSTANCE: generator can be applied for large scale fire extinguishing in closed or semi closed spaces. To increase an operating speed the generator is designed with case having a cylinder coating, the said case is with a front bottom and a perforated nozzle cover, generator is also equipped with charge of aerosol forming composition, situated between the front end and a ring support, cooling unit, assembled on the support ring, pipe, fastened inside the case along its axis, inducor, installed inside the pipe and trigger. Hollow bushing is installed between and rigidly attached to the ring support and the support ring, the side surface of the bushing has windows for burning products outlet. Charge is made of multi blocks and consists of at least three cylinder blocks which are installed lengthwise a circle between the inside surface of the case coat and outside surface of the pipe. The ring support is fastened on the end of the pipe facing the cooling unit, at that the opposite end of the pipe is fastened onto the front bottom of the case, and the side surface of the pipe is perforated.
EFFECT: simplification of the design of aerosol forming solid fuel charge, increase of reliability of its performance.
6 cl, 3 dwg
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: fire fighting, particularly means for generating aerosol fire inhibitors for extinguishing fires into closed space.
SUBSTANCE: fire-extinguishing plant comprises two pyrotechnical charges for gas-aerosol mixture generation. Pyrotechnical charges are provided with protective shells and arranged in vessels connected in back-to-back manner and spaced one from another. One vessel is of plate-like shape and charges are connected to the vessel by gypsum cement layer filling space defined by vessel flanging. Ignition block is installed between the charges. Another vessel is cylindrical and mates to plate-like vessel flanging diameter. Ratio between charge masses is 3:7. The plant may perform automatic operation in two modes, namely in intensive gas-aerosol generation mode with simultaneous pyrotechnical cartridge charge end burning in both vessels to provide a certain aerosol inhibitor concentration in the space, and in slow gas-aerosol generation mode in which pyrotechnical cartridge charge burns only in cylindrical vessel to increase aerosol inhibitor concentration up to predetermined value.
EFFECT: possibility of automatic operation in two modes.
FIELD: fire fighting, particularly means for generating aerosol fire inhibitors by burning pyrotechnic composition of cartridge and for delivering thereof into space to be protected in organized manner.
SUBSTANCE: aerosol generator comprises cartridge triggering unit secured into coaxial metal body through gypsum cement layer. Metal body has communication orifices to establish communication with reverse annular channel of receiver aligned with the body and covered with end cup having outlet orifices. The components are arranged inside perforated heat-exchanger case connected with outer shell through heat-shielding gypsum cement layer. The shell is tubular. Heat-exchanger case has end covers attached to case ends and having outlet orifices. End covers are fixedly secured to metal body and arranged symmetrically relative receiver located between pyrotechnical cartridges. One cartridge is provided with independent triggering unit. The case has corrugations to secure thereof in gypsum cement of heat-shielding layer.
EFFECT: increased operational reliability due to generating ignition impulse by two independent triggering units, increased intensity of cartridge burning simultaneously from both ends when fire-extinguishing composition is fed in opposite directions, reduced size, increased load-bearing strength and, as a result, possibility to increase pressure of fire-extinguishing flow to generate high-velocity flow.
FIELD: fire-fighting, particularly for extinguishing fires on transport and in rooms.
SUBSTANCE: plant comprises module with fire-extinguishing powder having partition installed along module body height. Partition serves as deflector and has concave shape. Orifices are formed along partition periphery. Plant has siphon tube with cuts oppositely formed at end thereof. Thermal jacket is connected to body portion. Container with gas-generation composition and heating member enclosed by insulation cup is arranged in body bottom.
EFFECT: possibility of extinguishing fire with the use of increased reliability and performance.
9 cl, 4 dwg