FIELD: fire-fighting means.
SUBSTANCE: invention relates to powder fire extinguishers and is designed for fire fighting. Fire extinguisher comprises a cylindrical body with a bottom and a welded lid, on the inner surface of which in a cartridge a neck collar is mounted. The top end of the neck collar is designed as an annular sealing ledge, which after assembly is adjacent to the inner surface of the welded lid. The neck collar is equipped with an internal threaded channel for installation of the start-up device and on the outside with a longitudinal groove, which includes a locking ledge of the cartridge. The neck collar preferably may be made of polymer material by method of casting or compression. The start-up device includes a head with the striker and a spring. At the head the start-up handle is mounted. Between the neck collar and the start-up device the O-ring is mounted.
EFFECT: constructive implementation of the elements of the body lid of a fire extinguisher provides increased reliability of the fire extinguisher and provides ease of manufacture and assembly.
5 cl, 3 dwg
The invention relates to fire engineering, namely for the construction of fire extinguishers and can be used in the development and manufacture of powder fire extinguishers and other fire fighting equipment.
Known extinguisher containing cylindrical body with a mouth and a bottom, trigger-locking device with a spray nozzle and siphon tube for feeding powder from the cylindrical body through the trigger-locking device on spray nozzles (A.S. USSR №835451, MKI A62C 13/50, 1981).
This extinguisher trigger-locking device is mounted in the neck connected to the body by welding. Achieving air-tightness of the weld requires the preparation of surfaces for welding, additional quality control of the weld and not achieving the desired reliability due to the appearance of stresses in the weld, due to the thickness of the mating parts.
Known extinguisher containing cylindrical body with a mouth and a bottom, trigger-locking device with a spray nozzle and siphon tube for feeding powder from the cylindrical body through the trigger-locking device in the spray nozzles. This extinguisher cylindrical casing made with Golovino sleeve, which, with its supporting flange secured within the cylindrical is orpus on his neck by means of spot welding and is made with a cylindrical Central pipe, paired with its supporting flange, and a Central pipe is made with an internal thread, whereby the cylindrical body is equipped with trigger-locking device of the extinguisher. Between the latter and the neck body is sandwiched gasket of elastic material, and the bottom is tightly connected to the cylindrical housing by welding (RF patent No. 2311936, IPC A62C 13.00, F17C 1/00, 2007).
However, in such construction of the fire extinguisher connection of the neck of the cylindrical body, and a support flange Golovino sleeve carried on curved surfaces, which is inconvenient in mass production because of the difficulty of ensuring the junction of the mating surfaces. When the change of physico-mechanical properties of the source material varies the amount of permanent deformation moldable billet, which leads to the formation of stresses in the product after Assembly. In this design, the same curved surfaces are sealed shut-starter. Sealing is accomplished by clamping the strip of elastic material and, in case of reduction of the elastic properties of the strip during prolonged storage may result in the loss of tightness of the fire extinguisher, which due to gas leaks, pressure drops in the body, and reduces the efficiency of fire extinguishing is to be placed. Thus, the main drawback of the known device is the lack of reliability in operation, due to the structural characteristics of the product. Another disadvantage is the increased consumption design curved flange of the support Golovino sleeve, the thickness of which is chosen with regard to enforcing the sleeve internal thread for installing trigger-locking device.
These drawbacks are due to the structural features of the known technical solutions.
In terms of total characteristics as the prototype device is selected by the RF patent №2311936.
Technical result provided by the invention is to improve reliability of the device and improving the manufacturability.
This result is achieved by the fact that the fire extinguisher containing cylindrical body with Golovino the bushing and plate, trigger-locking device with a spray nozzle and siphon tube for feeding powder from the cylindrical body through the trigger-locking device on spray nozzles, according to the invention the upper part of the body is in the form of a welded lid, on the inner surface of which the holder is installed gerlovina sleeve internal thread which starter set.
Gerlovina sleeve made of the Jena from a polymeric material and provided with an annular sealing ledge.
On the side surface Golovino sleeve is made a longitudinal groove that interacts with the locking protrusion of the holder.
A locking device installed at the entrance to the spray nozzles.
The starting device is equipped with a threaded socket in which is installed a gas generator.
Between the features and achievable technical result is the following causal link.
Perform upper part of the body in the form of a welded lid, on the inner surface of which the holder is installed gerlovina sleeve ensures manufacturability and Assembly of the body of the extinguisher. In this case, does not require specialized equipment to produce Golovino sleeve. When you build the fire extinguisher to seal the sealing surfaces you can use the standard sealing elements such as o-rings, collars, flat gaskets, etc. in which tightness is achieved through self-packing under pressure environment inside the apparatus. The use of standard sealing elements distinguishes the design from the prototype, in which the seal is only through the use of the elastic properties of the sealing strip, as the elastic properties may deteriorate during long-term storage of heat is uchitelya. Loss of elastic properties can cause depressurization of the fire extinguisher in its application. Thus, the proposed solution not only provides improved reliability of the device, but is more efficient as it does not require specialized equipment to produce Golovanova pipe
Installing the internal thread Golovino sleeve starter provides the ability to use powder extinguisher different types of generating gas devices. This improves the reliability of the fire extinguisher, as in the case of the fire extinguisher operating pressure (1.5 MPa) is created only at the time of application. It also provides increased reliability of the device.
Manufacturer Golovino sleeve of polymer material provides a dramatic cost reduction in the manufacture Golovino sleeve when the mass or serial production. Supply Golovino sleeve annular sealing ledge provides a tight seal to the housing cover, which increases the tightness of the fire extinguisher, thereby increasing the reliability of his work.
Execution on a side surface Golovino sleeve longitudinal groove that interacts with the locking protrusion of the clip prevents turning of the sleeve during Assembly of the fire extinguisher. This Gar is ntinued the orientation of the lever trigger relative to the siphon tube and pipe with nozzle.
Install a shut-off device at the inlet to the spray nozzles to more effectively carry out the fire. If necessary, short-term cessation of fire extinguishing powder shut-off device can rummage through his submission and resume feeding after pointing the spray nozzle on the site of the fire. This improves the efficiency of fire.
Supply starter threaded socket in which is installed a gas generator, enables the use of different types of gas generators while maintaining the other elements of the starter. This provides an expansion of the range of finished products. In addition, this design also increases the reliability of the fire extinguisher, as in the case of the fire extinguisher operating pressure (1.5 MPa) is created only at the time of application.
The set of essential features that characterize the invention, can be reused in the production of various modifications powder fire extinguishers with technical result consists in increasing the reliability and improving the manufacturability of a design, which consists in simplifying the design and reducing the weight, which allows to make a conclusion on compliance of the proposed facility to the criterion "industrial applicability".
The essential is to be claimed invention is illustrated in the drawings, where presented:
figure 1 shows a General view of the fire extinguisher;
figure 2 - view of the housing cover on the side;
figure 3 - same as figure 2, top view.
The list of positions in these drawings
1 - Body;
2 - Bottom;
3 - Cover welded;
4 - Clip;
5 - Bush gerlovina;
6 - Ring sealing ledge;
7 is a Threaded channel;
8 - Device launcher;
9 is a longitudinal Groove;
10 - Lug retainer;
11 - Head;
12 - Head;
13 - Spring;
14 - Arm launch;
15 - Ring sealing;
16 - Socket screw;
17 - gas Source;
18 - Hole;
19 - Tube siphon;
20 - the flexible Sleeve;
21 - spray Nozzles;
22 - Handle;
23 - divider;
24 - Nozzle;
25 - extinguishing Powder;
26 - the Jack under the pin.
The fire extinguisher comprises a cylindrical housing 1 with a bottom 2 and a welded cover 3, on the inner surface of which the holder 4 is installed gerlovina sleeve 5. The top end Golovino sleeve 5 is made in the form of an annular sealing lip 6, which after Assembly is adjacent to the inner surface of the mounting cover 3. Gerlovina sleeve 5 has an internal threaded channel 7 for installation of the starter 8 and on the outer side of the longitudinal groove 9, which includes the locking protrusion 10 of the casing 4. Gerlovina sleeve 5 site which preferably may be made of a polymeric material by casting or pressing. Starting device 8 includes a cylinder 11 with the striker 12 and the spring 13. On the head 11 mounted arm run 14. Between Golovino sleeve 5 and the ignition device 8 is installed, the sealing ring 15. In the threaded socket 16 of the head 11 has a gas source 17. As the gas source 17 can be used in the gas generator GSU on THE 4854-014-27526919-96 or the gas generator GG. On the head 11 mounted arm run 14. On the head 11 mounted arm run 14 on THE 4854-001-44270574-2000. In welding the cover 3 is made a hole 18, which is installed by welding siphon tube 19 connected by a flexible sleeve 20 with the spray nozzle 21 in the form of spray guns that contains the handle 22 with a movable spring-loaded fitting (stop valve), the divider 23 and nozzle 24. The inner cavity of the fire extinguisher is filled with powder extinguishing 25, for example, Vixon-ABS on THE 2149-028-10968286-97. Mounted on the head arm 11 run 14 is fixed sealed W / cotter pin (not shown)installed in the socket 26.
The fire extinguisher works as follows.
The principle of operation of the fire extinguisher is based on the use of the energy of compressed gas for aeration and release of fire extinguishing powder.
To bring a fire extinguisher in the action pulled out the sealed cheque from the slot 26. Handle run 14 plays up, this fight is 12 under the action of the spring 13 actuates a gas source 17, causing the working gas AERONET powder fire extinguishing 25 and creates inside the housing 1 fire extinguisher is required overpressure.
When pressed by hand on the handle 22 of the fire extinguishing powder through the siphon tube 19 inserted in the hole 18, through a flexible hose 20 and spray gun with a spray nozzle 21, the divider 23 and nozzle 24 is fed to the fire. It provides high efficiency of fire fighting and high reliability of the fire extinguisher at the expense of high integrity, due to the design of the upper part of the body is in the form of a welded cover 3, on the inner surface of which the holder 4 is installed gerlovina sleeve 5, the internal thread which starter set. The tightness of the fire extinguisher is achieved by the presence of the annular sealing lip 6, which after Assembly is adjacent to the inner surface of the mounting cover 3, which helps to ensure the integrity of the fire extinguisher. Installing internal threaded channel 7 Golovino sleeve 5 with the sealing ring 15 launching device 8 provides a standard working conditions seals, excluding failures. The presence on the outer side of the longitudinal groove 9, which includes the locking protrusion 10 of the casing 4, excludes cranking Golovino sleeve 5 when the SRB is Kyo.
Quenching is necessary to make the windward side from a distance of not less than 3-4 meters. After quenching is necessary to press the handle 22 and discard the rest of the powder.
The use of the invention "fire extinguisher" allows to increase the reliability of powder fire extinguisher, to improve manufacturability and reduce the weight.
1. A fire extinguisher containing a cylindrical housing with Golovino the bushing and plate, trigger-locking device with a spray nozzle and siphon tube for feeding powder from the cylindrical body through the trigger-locking device on spray nozzles, characterized in that the upper part of the body is in the form of a welded lid, on the inner surface of which the holder is installed gerlovina sleeve internal thread which starter set.
2. The fire extinguisher according to claim 1, characterized in that gerlovina sleeve is made of a polymeric material and provided with an annular hermeticum ledge.
3. The fire extinguisher according to claim 1, characterized in that on the side surface Golovino sleeve is made a longitudinal groove that interacts with the locking protrusion of the holder.
4. The fire extinguisher according to claim 1, characterized in that the locking device is installed at the entrance to the spray nozzles.
5. The fire extinguisher according to claim 1, characterized in that the triggering of the mouth of austo provided with a threaded socket, which features a gas generator.
FIELD: fire safety.
SUBSTANCE: invention relates to fire suppression, namely, to methods for extinguishing fire with finely pulverised water and can be used for fighting fire on ships and water-crafts, as well as other important facilities.
EFFECT: increased efficiency of extinguishing fires due to improving the fire extinguishing properties of finely pulverised water by optimisation of its dispersion, is achieved by the fact that at pre-treatment of water with a constant magnetic field with strength of 40-45×103 A/m at a motion speed of stream of 0,4-0,5 m/s and with passing water through the proposed device with a voltage of a DC electric field of 30-50 V/mm, the uniformity of negatively charged water droplets of optimal size increases twice.
FIELD: fire safety.
SUBSTANCE: in a mobile fire extinguishing plant, which comprises a portable fire extinguishing device, which represents a stored pressure extinguisher, filled with incombustible liquid, with a stop-starting device of manual type and a system of liquid supply with a foam generator, additionally there is a system of air gas supply, which includes a microswitch installed on the stop-starting device so that whenever the fire extinguisher starts, simultaneously a compact compressor is switched on, which operates from a portable accumulator unit.
EFFECT: increased efficiency of extinguishing fires of various classes as a result of foam generator inclusion into a fire extinguisher, which produces intense air mechanical foam.
2 cl, 3 dwg
FIELD: fire-fighting means.
SUBSTANCE: chemical air-foam fire extinguisher contains a steel case filled with 9 l of an aqueous-alkaline solution in the form of mixed sodium bicarbonate NaHCO3 and licorice extract, and a polyethylene container filled with acid mixture in the form of sulphuric acid H2SO4 and ferric sulphide FeSO4, and increasing volume and durability of generated foam; the polyethylene container is rigidly connected to a valve seat fixed at the bottom of a cup rigidly connected to a cover of the steel case to the bottom of which there is a handle for operating mode of the fire extinguisher, and at the top of the case, an outlet branch with a foam generator is placed. The cup is mounted in the case and is axial-symmetrical to the case and the polyethylene container, and the valve is connected to a rod axial-symmetrical in the cup and a spring-assisted spring. At the bottom of the cup, over the valve, there are at least three apertures providing connection of alkaline and acid portions of the fire extinguisher, and the cover of the case of the fire extinguisher comprises a lock-start gear.
EFFECT: more efficient fire protection by increasing operation speed and reliability.
3 cl, 5 dwg
FIELD: fire-fighting means.
SUBSTANCE: invention refers to devices for fire extinguishing agent supply to a fire source. An extinguisher cylinder wherein a dry powder is put comprises a metal-bonded glass bottle of the length 500 mm and diameter 54 mm, and in the middle of the glass filled with the powder, there is a layer of a special solid substance transformed in a gaseous state at temperature 100°C.
EFFECT: higher performance speed and reliability of the extinguisher that provides effective fire protection of the process equipment.
FIELD: fire-fighting means.
SUBSTANCE: invention refers to fire extinguishing, namely to systems working on the principle of using suspended fine solid particles of an aerosol generated by combustion stick of a pyrotechnic composition as fire retardants. The generator comprises a pyrotechnic stick equipped with a flame igniter electrically connected with an external starting arrangement and fastened by a layer made of a curing material with a body overlapped with a diaphragm; the body through an annular gap forms a reverse pathway to an outlet annular nozzle and is coaxially fixed in a thermally shielded case provided with a central projection and an axially clamped plate-type cover. The case is filled with liquid oil covering the body wherein the pyrotechnic stick supplied with the flame igniter is arranged; a combustible diaphragm adjoins the body diagram; and over the body, distributed transverse disks alternating with in-built bulkheads is axially clamped; the central projection of the case has radial holes and adjoins a bottom of the cover.
EFFECT: invention provides enhanced functional reliability of the generator.
2 cl, 1 dwg
FIELD: fire safety.
SUBSTANCE: in a device for voluminous aerosol fire extinguishing, an initiation unit is realised as electric and thermochemical start-up initiators, installed on surface of an aerosol-forming substance (AFS) charge at the side of a receiver, outlet holes are located on a cylindrical metal casing near its metal cover and/or on it, and ratio of AFS charge burning area to the total area of outlet holes is 10-100.
EFFECT: improved quality of aerosol flow and convenience of use for various objects.
FIELD: fire-fighting means.
SUBSTANCE: invention refers to portable fire-control units, particularly to fire extinguishers. The fire extinguisher comprises a extinguishing fluid tank, a fluid displacement system accommodating a including siphon tube, a locking starter coupled with an outlet of the siphon tube, a fluid flow limiter controlling a cross-sectional area of a flow passage by fluid pressure in the tank, a fluid sprayer with a centrifugal fluid vortex and an exhaust nozzle, and a pipeline connecting an outlet of the locking starter and the fluid sprayer; the exhaust nozzle of the fluid sprayer represents a cone diffuser chamber with its inlet coupled with an outlet of the cylindrical mixing chamber of the centrifugal vortex. An inlet connection comprises an axial fluid supply tube and a cylindrical compressed air supply cavity into the mixing chamber where air-mechanical foam is produced. Besides, the fire extinguisher is supplied with a small-sized compressor which is coupled by an air line to a connection cavity and supplies compressed air when the fire extinguisher actuated.
EFFECT: more effective various class fire extinguishing ensured by using high-expansion air-mechanical foam.
1 cl, 1 dwg
FIELD: fire fighting equipment.
SUBSTANCE: fire-fighting unit (50. 50', 50") comprising a double-enclosed (12, 12') fire suppressant container (10, 10'), a piston (20, 20') axially movable in the container enclosure and isolating in the fire suppressant container a fire suppressant space (22, 22') from an extensive space (24, 24'). According to the invention, inside the fire suppressant container (10, 10') there is a pressure tank (28, 28') in the form of a compressed gas chamber (26, 26') spatially separated from the extensive space and used for high-pressure storage of propellant and for controlled supply thereof to the extensive space (24, 24') at low extinction pressure. The piston (20, 20') is movable along the compressed gas chamber (26, 26').
EFFECT: higher performance of the fire-fighting unit.
1 cl, 15 dwg
FIELD: fire fighting equipment.
SUBSTANCE: invention refers to fire prevention, more specifically to fire-extinguishing installations using gas-aerosol flame retardants generated by pyrotechnic block combustion and supplied to a protected space in an orderly way, preferentially by water crafts and transport vehicles. The generator contains coaxial case and pyrotechnical block fixed in flooring cement layers with an in-between annular reversible heat exchanger formed by two perforated metal envelopes with an internal one being matched with a receiver; and an ignition assembly adjoining a free end face of the block, and an outlet cover. The ignition assemble is integrated in a median slot from an open end face of the block which is enclosed in a polymer film casing and rests through a foam plastic spacer on a rod mounted in the diametrical perforations of an inferior envelope of the heat exchanger bearing longitudinal edges for the block diametre, while the case comprises a bearing bracket wherein ignition assembly telecommunication clamps are fixed.
EFFECT: ensured higher functional reliability and efficacy of the generator of more simple and technological design and expanded range of use thereof.
2 cl, 2 dwg
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
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
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 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 equipment and liquid sprayers for various applications.
SUBSTANCE: liquid sprayer has body with inlet connection pipe, centrifugal liquid flow swirler and nozzle with profiled channel. Centrifugal swirler is made as hollow cylindrical insert with inlet axial channel and at least four tangential inlet channels formed in side wall of the insert. Transversal sections of inlet centrifugal swirler channels are dimensioned such that 4S0≤St≤6S0, where St is summary area of tangential channel sections, S0 - is area of axial channel section. Four tangential channels may be formed in side wall of hollow insert. The tangential channels may be equidistantly spaced along a circle. Axes of symmetry defined in adjacent channels are transversal one to another. Cylindrical insert cavity communicates with inlet orifice of profiled nozzle channel including part tapering in liquid flow direction. Profiled outlet nozzle channel may comprise inlet part converging in liquid flow direction and diverging outlet part. The inlet and outlet parts are arranged one after another. Parts of profiled nozzle channel have conical or conoidal shape. Fire-extinguisher comprises tank with fire-extinguishing liquid, system for liquid displacement from the tank, shutoff-and-triggering device, liquid sprayer provided with centrifugal liquid flow swirler and outlet nozzle. Fire-extinguisher also has pipeline to connect shutoff-and-triggering device with liquid sprayer. The liquid sprayer generates gas-and-liquid jet with spray angle of 17-23°.
EFFECT: increased velocity and uniform liquid droplet dimensions in the jet, possibility to create gas-and-liquid jet with fixed spray angle.
10 cl, 4 dwg
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.
EFFECT: possibility to generate gas-and-droplet flow having constant spray angle and flow rate, possibility to obtain necessary distance of liquid throw for the full fire-extinguisher charge distribution process.
7 cl, 4 dwg
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.
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