Procedure for obtaining of gas-powder mixture and device for its implementation

FIELD: fire safety.

SUBSTANCE: procedure for obtaining of gas-powder mixture contains aeration of the fire-extinguishing powder by means of compressed air supply using aeration devices located in bottom part of the tank and connected with compressed air source to the cavity of the tight tank with fire-extinguishing powder. When in the specified tank work pressure is achieved via the siphon pipe the created gas-powder mixture is removed from this tank with further creation using the appropriate means of the single jet or multi-jet flow of the gas-powder mixture supplied to the fire source. The gas-powder mixture removed from the specified tank is accelerated in the specified siphon pipe by means of the compressed gas jet supply to the siphon pipe via its inlet hole and coaxial with it, at that ensuring possibility of the ejection in the siphon pipe of gas-powder mixture created in the tank. Devices for the compressed gas jet supply in the siphon pipe via its inlet hole and coaxially with it are made as nozzle with channel having permanent or variable cross-section coaxially installed relatively to the axis of the siphon pipe for the compressed gas jet supply to the siphon pipe via its inlet hole; at that the nozzle is connected either with the same compressed air source as the aeration devices of the fire-extinguishing powder in the tank, or with the appropriate compressed air source.

EFFECT: improved efficiency and quick action of fire fighting system.

3 cl, 2 dwg

 

The invention relates to fire technique, and more particularly to methods and means for fire fighting powder formulations.

From the achieved level of technology a method of producing fire extinguishing powder mixture, whereby the initiate ignition of the solid propellant charge of the gas source, carry out fire extinguishing powder aeration by feeding the working gas resulting from the combustion of solid fuel charge into the cavity of the sealed container with her fire-extinguishing powder, and when reaching into the cavity of the container working pressure discharge formed powder mixture from the tank followed by the formation of by appropriate means, such as exhaust nozzle, multi-jet flow of fire extinguishing powder sent to the fire (Kazakov A. A. and Galinski Yu RU №2195985, C2, 2003).

There is described a device for producing fire-extinguishing powder mixture containing a sealed container for fire extinguishing powder, the gas source disposed in the cavity of the container and secured at its upper portion, the gas source includes a cylindrical body in which are sequentially initiating device and solid-fuel charge, and on the outer surface of the side wall of the housing of the source RA�ochy gas and uniformly on its circumference is placed in the flue, directed radially and communicating with is not occupied by a solid propellant charge part of the body cavity of the gas source. In addition, the lower casing provided with a cylindrical pipe on which is installed the exhaust nozzles, ensuring the formation directed to the fire multi-jet flow of fire extinguishing powder in the cavity of the cylindrical pipe is placed trigger-locking device.

The main and common drawback of the above-described method of producing fire extinguishing powder mixture and device for its implementation is the limited area of its use due to a sufficiently high temperature of the working gas resulting from the combustion of solid fuel charge, as well as due to the need of initiating use (flammable) device.

Also known a method of producing fire extinguishing powder mixture, taken as a prototype, including a fire extinguishing powder aeration by compressed gas in the lower and the upper part of the sealed container with her fire-extinguishing powder, and when reaching into the cavity of the container working pressure by means of a siphon tube discharge formed powder mixture from the tank followed by the formation of by appropriate means, such as nozzles, odnostroi�wow or multi-jet flow of fire extinguishing powder, sent to the fire (Sizikov A. A. and others SU # 1558409, A1, 1990).

There is described a device for producing fire-extinguishing powder mixture (in other words, powder extinguisher), taken as a prototype and containing a cylindrical airtight container for fire extinguishing powder, supplied by a siphon pipe can be withdrawn from the cavity of the container gas-powder mixture, means for aeration (swelling) in the container of fire extinguishing powder located in the bottom of the tank and connected to a source of compressed gas (preferably made in the form of pressurized gas), the speaker beyond capacity plot siphon pipe via trigger-locking device is connected to means (nozzle) to generate a stream of fire extinguishing powder sent to the fire. Means for aeration (swelling) in the container of fire extinguishing powder (aerator) contain a cylindrical body, hermetically fixed in the bottom of the tank and provided with an internal partition that divides the body cavity into upper and lower parts, wherein on the side of the Cabinet evenly around its circumference placed the flue aimed at the upper part of the cavity of the container and communicating with said lower part of the body cavity, and the upper end wall of the nozzle body is placed, which direction�s in the lower part of the cavity of the container and communicated with said upper part of the body cavity, which through a check valve communicates with connected to a source of compressed air to the lower part of the body cavity.

Common drawback described above and taken as a prototype method of obtaining fire-extinguishing powder mixture and device for its implementation is not sufficiently high efficiency of extinguishing fires due to the fact that not secured by a quick release of fire extinguishing powder out of the container. The fact is that when a pulsed supply of fire extinguishing powder mixture in the protected volume, the influence of the gravitational field on the distribution of concentration of fire extinguishing powder within the protected volume at the end of feeding him extinguishing powder mixture will be greater, the greater the interval of time required for the output of the fire extinguishing powder out of the container. In other words, when the pulse supply of fire extinguishing powder mixture distribution of the concentration of fire extinguishing powder within the protected volume at the end of feeding him extinguishing powder mixture will be less different from the current, the shorter the time of emission of fire-extinguishing powder out of the container.

The present invention is directed to solving technical challenges maintaining the pulsed supply of fire extinguishing powder mixture into the protected volume reduction not less th� 1.5 times time required for the release of fire extinguishing powder out of the container, due to more efficient conversion of the energy of compressed gas into kinetic energy of the particles of fire extinguishing powder in the process of withdrawing them from the container through the siphon pipe.

According to the method as the object of the invention, the task is solved in that in the method of producing fire extinguishing powder mixture comprising a fire extinguishing powder aeration by feeding a compressed gas into the cavity of the sealed container with her fire-extinguishing powder, and when reaching into the cavity of the mentioned capacity working pressure through the siphon discharge pipe from this tank the resulting powder mixture followed by the formation of by appropriate means single jet or multi-jet flow of gas-powder mixture is sent to the fire, according to the invention the output from the capacity of fire extinguishing powder dispersed in said siphon pipe by feeding into the siphon pipe via its inlet opening and coaxially her jet of compressed gas, whilst ensuring the possibility of ejection in the siphon pipe is formed in the cavity of the container gas-powder mixture.

According to the device according to the invention, the task is solved in that the device for producing fire-extinguishing powder mixture containing �ermetico container for fire extinguishing powder, equipped with a siphon tube to remove from the cavity of the container gas-powder mixture, means for aeration in the container of fire extinguishing powder located in the lower part of the cavity of the container and connected to a source of compressed gas, thus extending the capacity limits of the plot siphon pipe via trigger-locking device is connected with the means for forming a flow of powder mixture sent to the fire, according to the invention further comprises means for supplying a jet of compressed gas in the siphon tube through its inlet opening and coaxially with her, whilst ensuring the possibility of ejection in the siphon pipe is formed in the cavity of the container gas-powder mixture, moreover, an additional means is connected or with said source of compressed gas, or with the appropriate tools source of compressed gas.

In addition, the task is solved by the fact that the means for aeration of fire extinguishing powder and means for supplying a jet of compressed gas in the siphon tube through its inlet opening and her coaxially formed as a single structural node that contains the common hollow body, sealed at the bottom or on the bottom of the tank and connected by a conduit to a source of compressed gas, made in the form of a cylinder with high pressure shut-Pskovelectrosvar, the funds for the aeration of the fire extinguishing powder is made in the form of nozzles evenly spaced around the perimeter of the side wall of the said casing and communicating with its cavity, and means for supplying a jet of compressed gas in the siphon tube through its inlet opening and coaxially her made in the form placed on the upper end wall of the housing tube coaxially disposed about the axis of the siphon pipe and communicating with its cavity by a channel of constant or variable cross-section for supplying a jet of compressed gas in the siphon tube through its inlet, whilst ensuring the possibility of ejection in the siphon pipe is formed in the cavity of the container gas-powder mixture.

The advantage of the patented method of obtaining fire-extinguishing powder mixture and device for its implementation, compared to the method and the device, taken as a prototype, is that, due to dispersal of the fire extinguishing powder particles in a fluidized state, ensures the achievement of the following technical results, namely, when the pulse supply of fire extinguishing powder mixture in the protected volume is provided by a reduction of not less than 1.5 times the time interval required for the release of fire extinguishing powder out of the container, which also allows to increase the efficiency of quenching by�Ara, by reducing the negative influence of the gravitational field on the distribution of concentration of fire extinguishing powder within the protected volume at the end of feeding him extinguishing powder mixture.

Further, the present invention is illustrated by concrete examples, which, however, are not only possible, but clearly demonstrate the possibility of achieving the above-mentioned technical results of the claimed combination of essential features.

Fig.1 schematically illustrates a device for producing fire-extinguishing powder mixture, a side view, in partial section; Fig.2 is another exemplary embodiment of the device for producing fire-extinguishing powder mixture, a side view, partial sectional view.

Shown in Fig.1 patent apparatus for producing fire extinguishing powder mixture (in other words, powder extinguisher) comprises a sealed container 1 (e.g., cylindrical) for fire extinguishing powder 2 provided by a siphon pipe 3 to be output from the cavity of the container 1 powder mixture, means for aeration (coring, sushimania) fire extinguishing powder 2 in the container 1, which are located in the lower part of the cavity of the container 1, and means for supplying a jet of compressed gas in the siphon pipe 3 through an inlet opening and coaxially her this means� for aeration of fire extinguishing powder 2 and means for supplying a jet of compressed gas in the siphon pipe 3 through an inlet opening and coaxially connected to her or with a common source of compressed gas (preferably made in the form of a cylinder 4 high pressure shut-starting device 5 or in the form of a battery of high-pressure cylinders with compressed gas, is provided corresponding to each of them a lock and release device) or with the corresponding each of the aforementioned means of a source of compressed gas and a bulging beyond capacity 1 phase 31 of the siphon pipe 3 via the trigger-locking device 6 is connected with means (e.g., a nozzle) for forming a flow of powder mixture sent to the fire (not shown).

In the simplest example (which, however, is preferred) embodiment of the device for implementing the claimed method of obtaining fire-extinguishing powder mixture (Fig.1) means for aeration of fire extinguishing powder 2 and means for supplying a jet of compressed gas in the siphon pipe 3 through an inlet opening and her coaxially formed as a single structural node that contains the common hollow body 7, for example cylindrical, hermetically fixed in or on the bottom of the tank 1 and connected by a conduit 8 to a source of compressed gas, made in the form of a cylinder 4 high pressure shut-starting device 5, wherein the means for aeration of fire extinguishing powder made of, for example, in the form of nozzles 9 (instead of the nozzles 9 can be used injectors or as in the prior art, the flue) for submission to the �alost the container 1 under pressure (compressed) gas, providing aeration to form fire extinguishing powder 2. The nozzles 9 are evenly placed around the circumference (perimeter) of the side wall of the housing 7 and is communicated with the cavity, and means for supplying a jet of compressed gas in the siphon tube through its inlet opening and coaxially her made in the form placed on the upper end wall of the housing 7 of the tube 10 coaxially disposed with respect to the axis 32 of the siphon pipe and communicating with the cavity of the housing 7 channel 11 constant or variable cross-section for supplying a jet of compressed gas in the siphon tube through its inlet opening and coaxially with her while ensuring the possibility of ejection in the siphon pipe 3 formed in the cavity of the container 1 powder mixture. In a preferred embodiment of the invention, the outlet end of pipe 10 is (lies) in the plane a-A slice of the intake end of the siphon pipe 3 with the provision of education circular opening 12 between it and the inner wall of the intake end of the siphon pipe 3 (in other words, with the provision of the ejection in the siphon pipe 3 formed in the cavity of the container 1 powder mixture). In principle (for example, in other embodiments of the claimed invention), the output end of the pipe 10 can be accommodated with the provision of the ejection in the siphon pipe 3 formed in the cavity of the container 1 powder mixture as for the a-a plane �cut the intake end of the siphon pipe 3, and before mentioned plane, while in the above-mentioned the latter case, the outlet end of the pipe 10 is located at a distance from the plane a-a slice of the intake end of the siphon pipe 3, provides input jet of compressed gas in the siphon pipe 3 through the inlet taking into account the aperture of the jet of compressed gas. In all the examples described above of an embodiment of the claimed invention, the intake end of the siphon pipe 3 (if necessary, from the point of view of providing the said ejection in the siphon pipe 3 formed in the cavity of the container 1 powder mixture) is fitted coaxially mounted with nozzle made in the form of the diffuser.

In other embodiments of the claimed invention, the means for aeration of fire extinguishing powder 2 in the container 1, and means for supplying a jet of compressed gas in the siphon pipe 3 through an inlet opening and coaxially her may be formed as separate components, or United with a common source of compressed gas (made of, for example, as described above, in the form of a cylinder 4 with a lock and release device 5 of Fig.2), or connected with the corresponding each of the mentioned source of compressed gas. Thus, the means for aeration of fire extinguishing powder 2 located in the cavity of the container 1 may be made in the form of any known in the art fu�csinalni node (aerator) for the same purpose, for example, in the form of a hollow hemispherical shell 13 forms connected by a conduit 8 to a source of compressed gas made of, for example, as in the example described above, in the form of a cylinder 4 with a lock and release device 5, and disposed on the curved surface of the nozzle 14 (Taradino V. P. et EN No. 2176925, C1, 2001). Means for aeration of fire extinguishing powder 2 may be made also or as described above in the prior art, or in the form of aerodrome tanks for fire extinguishing powder (Isawin N. In. et SU # 1516127, A1, 1989). Means for supplying a jet of compressed gas in the siphon pipe 3 through an inlet opening and coaxially to it, then they can be executed in the same manner as in the example described above, in the form of a pipe 10 with a coaxially disposed relative to the axis 32 of the siphon tube 3 channel 11 constant or variable cross-section for supplying a jet of compressed gas in the siphon pipe 3 through the inlet, but United with a common to both of the mentioned source of compressed gas (for example, as shown in Fig.2, line 8) through an additional conduit 15 sealed, for example, the side wall of the container 1.

A method of producing fire extinguishing powder mixture is carried out as follows. Carry out aeration in the container 1 fire extinguishing powder 2 (Fig.1) by the p�give (as a result of triggering a lock and release device 5) through conduit 8 under the pressure of the gas (inert, for example, carbon dioxide or air) from a pressurized gas source (cylinder 4) first into the cavity of the housing 7, and then in the lower part of the cavity of the container 1 through the nozzle 9 (or through nozzles or, as in the prototype, through the flue, if they are used instead of the nozzles 9 and through the pipe 10. Compressed gas, flowing at high speed from the nozzles 9 and the nozzle 10 provides loosening (breaking clods, fluffing) all fire extinguishing powder 2 in the container 1, thus simultaneously with aeration extinguishing powder 2 in the cavity of the container 1 creates increased (excessive) pressure. As a result of aeration of fire extinguishing powder fluidization occurs. In other words, as a result of aeration extinguishing powder acquires properties close to the properties of the liquid droplet, that is, becomes fluid that provides unobstructed release it from the tank 1 through the siphon pipe 3 in the form of fire extinguishing powder mixture. From the above it follows that during the operation by aeration in the container 1 fire extinguishing powder 2 the pipe 10 serves the same function as that of the nozzle 9.

When used for the implementation of the patented method of obtaining fire-extinguishing powder mixture the device in which the means for aeration of fire extinguishing powder 2 in the container 1, and means for supplying �truyes compressed gas in the siphon pipe 3 through an inlet opening and coaxially her made in the form of individual structural units (Fig.2, accordingly: in the form of aerator, for example comprising a hollow body 13 hemispherical shape, connected by a conduit 8 to a source of compressed gas and provided with nozzles 14 along its curved surface; and the nozzle 10 with coaxially disposed relative to the axis 32 of the siphon tube 3 channel 11 constant or variable cross-section for supplying a jet of compressed gas in the siphon pipe 3 through an inlet opening connected to a common source of compressed gas through an additional conduit 15 is hermetically fastened to the side wall of the container 1) operation of aeration of fire extinguishing powder in the container 1, performed similarly to that described above, as a result of triggering a lock and release device 5, the gas under high pressure from the cylinder 4 is fed simultaneously into the cavity of the aerator casing 13 and the pipe 10, respectively, via line 8 and an additional conduit 15. Therefore, in the same manner as described above, is provided as fluidization in the container 1 fire extinguishing powder 2, and the creation in the cavity of the container 1 overpressure required, on the one hand, the influx of fire-extinguishing powder 2 at the intake end of the siphon pipe 3, on the other hand, for further movement extinguishing �orosco 2 through the siphon pipe 3. However, it should be noted that the compressed gas in the pipe 10 (in other words, means for supplying a jet of compressed gas in the siphon pipe 3 through the inlet and coaxial s) via the auxiliary nozzle 15 provides, if necessary, through the installation of additional conduit 15 of the locking element (not shown), to supply compressed gas (mentioned by transferring the locking element from the closed to the open position) to the pipe 10 after reaching into the cavity of the container 1 the required value of overpressure. In other words, the discussed above is an example of an embodiment of a device for implementing the claimed method of obtaining fire-extinguishing powder mixture provides enhanced operational functionality.

When reaching into the cavity of the container 1 working pressure (in other words, the excess pressure which must, on the one hand, to ensure the influx of fire-extinguishing powder 2, which is in a fluidized state, the intake end of the siphon pipe 3, and, on the other hand, to ensure further movement of fire extinguishing powder 2 through the siphon pipe 3) perform (as a result of triggering a lock and release device 6) conclusion from the tank 1 through the siphon pipe 3 formed powder mixture with subsequent bulk�m using, for example, the appropriate nozzle (not shown) single jet or multi-jet flow of fire extinguishing powder sent to the fire, while the output from the tank 1 chemical powder 2 dispersed in a siphon pipe 3 by feeding through the nozzle 10 of the jet of compressed gas in the siphon pipe 3 through an inlet opening and coaxially to the axis 32 while ensuring the capacity of the ejection in the siphon pipe 3 formed in the cavity of the container 1 powder mixture. Indeed flowing from the nozzle 10 a stream of compressed gas, expanding at the expense of her mouth, creates possessing high kinetic energy of the gas flow, covering the entire cross section of the siphon pipe 3 and provide, thereby, the effective interaction with all the particles of the fire extinguishing powder 2 flowing into the siphon pipe 3 of the tank 1. As a result of the interaction of particles with fire extinguishing powder 2 with the said gas stream propagating through the siphon pipe 3, is provided by the fascination of fire extinguishing powder particles 2 with the gas flow, and therefore, their dispersal. In other words, results in an efficient conversion of the energy of compressed gas into kinetic energy of the particles of fire extinguishing powder 2 in the process of withdrawing them from the container 1 through the siphon pipe 3. The increase of the kinetic energy caliculated powder 2 while the ejection in the siphon pipe 3 formed in the cavity of the container 1 powder mixture leads to the increase in the flow of fire extinguishing powder 2 through the siphon pipe 3, and consequently, to reduce the time required for the release of fire extinguishing powder 2 from the tank 1.

Tested devices for the implementation of the patented method of obtaining fire-extinguishing powder mixture showed that due to the fluidization in the container 1 fire extinguishing powder 2 and the subsequent dispersal of the fire extinguishing powder particles 2 with a jet of compressed gas supplied to the siphon pipe 3 through an inlet opening and coaxially her, whilst ensuring the possibility of ejection in the siphon pipe 3 formed in the cavity of the container 1 gas-powder mixture is provided, depending on the weight (40 to 120 kg) in the container 1 fire extinguishing powder 2, significant, compared with the prototype, reduction (from 1.66 to 1.85 times) the time of emission of fire-extinguishing powder 2 from the tank 1.

Industrial applicability of the claimed invention is confirmed by the known from the prior art component used for its implementation.

1. A method of producing fire extinguishing powder mixture comprising a fire extinguishing powder aeration by feeding a compressed gas into the cavity of the sealed container with her fire-extinguishing powder, and when reaching into the cavity of the mentioned capacity working pressure through the siphon discharge pipe from this tank formed Gasparo�Cova mixture followed by the formation of by appropriate means single jet or multi-jet flow of powder mixture, sent to the fire, characterized in that the output from the capacity of fire extinguishing powder dispersed in said siphon pipe by feeding into the siphon pipe via its inlet opening and coaxially her jet of compressed gas, whilst ensuring the possibility of ejection in the siphon pipe is formed in the cavity of the container gas-powder mixture.

2. The apparatus for producing fire extinguishing powder mixture containing a sealed container for fire extinguishing powder, supplied by a siphon pipe can be withdrawn from the cavity of the container gas-powder mixture, means for aeration in the container of fire extinguishing powder located in the lower part of the cavity of the container and connected to a source of compressed gas, thus extending the capacity limits of the plot siphon pipe via trigger-locking device is connected with the means for forming a flow of powder mixture sent to the fire, wherein that it further comprises means for supplying a jet of compressed gas in the siphon tube through its inlet opening and coaxially with her, whilst ensuring the possibility of ejection in the siphon pipe is formed in the cavity of the container gas-powder mixture, and further means connected to or with said source of compressed gas, or with the appropriate tools source�ohms compressed gas.

3. The device according to claim 2, characterized in that the means for aeration of fire extinguishing powder and means for supplying a jet of compressed gas in the siphon tube through its inlet opening and her coaxially formed as a single structural node that contains the common hollow body, sealed at the bottom or on the bottom of the tank and connected by a conduit to a source of compressed gas, made in the form of high pressure cylinder with a lock and release device, with means for aeration of fire extinguishing powder is made in the form of nozzles evenly spaced around the perimeter of the side wall of the said casing and communicating with its cavity, and means for supplying a jet of compressed gas in the siphon tube through its inlet opening and coaxially her made in the form placed on the upper end wall of the housing tube coaxially disposed about the axis of the siphon pipe and communicating with its cavity by a channel of constant or variable cross-section for supplying a jet of compressed gas in the siphon tube through its inlet, whilst ensuring the possibility of ejection in the siphon pipe is formed in the cavity of the container gas-powder mixture.



 

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1 cl, 5 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: 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

Fire extinguisher // 2291729

FIELD: fire-fighting equipment, particularly portable extinguishers which are permanently pressurized or pressurized immediately before use.

SUBSTANCE: fire extinguisher comprises body, fire-extinguishing composition, siphon pipe, locking-and-triggering head, triggering lever, discharge nozzle, thermal lock, transition spout and external connection pipe. The thermal lock is provided with removable protective covering having inner diameter equal to 4.0-8.0 thermal lock bulb diameters.

EFFECT: increased fire-extinguishing efficiency.

4 cl, 1 dwg

FIELD: fire-fighting, particularly fire-extinguishing means using fire-extinguisher generated as two-phase gas-and-droplet flow.

SUBSTANCE: fire-extinguishing device comprises at least one fire-extinguishing liquid vessel, at least one compressed gas cylinder, gas pressure regulator, connection hose system and directed gas-and-droplet flow generation means. The gas-and-droplet flow generation means includes body, controlled liquid and gas delivery valves, mixing chamber for gas and liquid mixing made as cylindrical channel and gas-dynamic nozzle. Cylindrical bush is installed in the mixing chamber. Cylindrical bush is arranged in the body so that annular liquid delivery gap is created between the bush and body wall. The annular gap provides tangential liquid inlet. Inner bush surface defines cylindrical mixing chamber channel. Slot-like injection orifices are created in the bush. The slot-like orifices are directed transversely to axis of symmetry defined in cylindrical channel of mixing chamber. Slot-like orifice widths are not more than 0.07D, where D is inner bush diameter. Bush section provided with injection orifices has length L0 measured along cylindrical channel, wherein the length L0 is selected from the following condition: D≤L0≤2D. Summary throat area of slot-like orifices Sor is not less than 0.01Sin, where Sin is inner bush surface area. The slot-like orifices are spaced equal distances along axis of cylindrical channel symmetry.

EFFECT: decreased fire-extinguishing liquid losses, increased spatial uniformity and stability of generated fine gas-and-droplet flow.

7 cl, 2 dwg

FIELD: storing or distributing liquids or gases.

SUBSTANCE: vessel comprises threaded neck, valving system with threaded part to connect it to the neck, and device for the relief of pressure when assembling mounted on the threaded part of the valving system. The seal is made of a polymeric composition and is set in the spiral space between the turns of the vessel neck over the section between the outer face of the threaded neck to the device for pressure relief to define a glue connection. The method comprises mounting valving system with the cylindrical threaded section to the threaded neck of the metallic vessel and sealing the cylindrical threaded connection. The valving system is screwed in the neck with an arbitrary torque with the use of a lubricant made of an anaerobic glue that is applied on the turns of the thread or turns at any site of the threaded section. The assembled joint is allowed to stand at a temperature no less than 5°C over at least 20 min.

EFFECT: simplified structure and reduced labor consumption for assembling.

9 cl, 8 dwg, 2 ex

FIELD: manufacturing high-pressure vessels.

SUBSTANCE: method comprises screwing the valving members in the neck with an arbitrary tightening torque with the use of a lubricant that is applied on the threaded section of the valving member from the side of its face within the section between the first and fifth turn of the thread along the 1±0.5 of the turn length over its periphery. The lubricant is made of a one-component anaerobic glue in amount corresponding to the volume of the spiral space between the turns of the neck thread and answering turns of the threaded section of the valving device over the length no less than one turn of the thread. The assembled vessel is then allowed to stand for forming a polymeric composition in the spiral space for at least 20 min at a temperature of no less than 5°C. The threaded connection is sealed by means of a polymeric composition.

EFFECT: enhanced reliability.

1 cl, 5 dwg

Fire-extinguisher // 2311936

FIELD: fire-fighting equipment, particularly fire-extinguishers, for instance powder fire-extinguishers.

SUBSTANCE: fire-extinguisher comprises cylindrical body with head and bottom, shutoff-and-triggering device with spraying head and siphon pipe for powder distribution from cylindrical body into spraying head through shutoff-and-triggering device. Cylindrical body has mouth head including support flange secured inside cylindrical body and connected to mouth thereof by spot weld seam. The bush has cylindrical central pipe mating support flange thereof. Central pipe includes inner thread for shutoff-and-triggering device connection to cylindrical body. Sealing gasket made of elastic material is clamped between shutoff-and-triggering device and body mouth. Bottom is air-tightly secured to cylindrical body by means of welding.

EFFECT: increased body reliability, decreased labor inputs for fire-extinguisher body manufacturing and reduced body manufacturing accuracy requirement.

1 dwg

FIELD: mechanics.

SUBSTANCE: invention can be used in closed or semi closed spaces. To increase reliability of performance generator comprises case with a cylinder shaped coat and with solid and perforated bottoms, charge with aerosol forming composition, cooling unit fixed at one side with the perforated bottom, and from the side of the charge -with a perforated partition. Linear bushing with a perforated side surface is situated within the inside surface of the solid bottom along the axis of the case. Charge is of multi blocks and consists of one central and least two peripheral cylinder shaped blocks, at that the central cylinder block is located along the axis of the case allowing it to be supported at one end with a linear bushing, and at the other end with the perforated partition; peripheral cylinder blocks are situated lengthwise with an axial set off against the central block along the circumference between the central block and the cylinder coat of the case; inducer with a trigger is assembled inside the linear bushing.

EFFECT: increase of efficiency of large scale fire fighting.

3 cl, 2 dwg

FIELD: mechanics.

SUBSTANCE: lock and release mechanism for extinguisher includes head attached to a container. The head is provided with inlet and outlet channels for fire extinguishing agent supply. Bushing with flange from one side and circular bead from the other side is threaded into the housing. Rod is spring-loaded with regard to head and installed into bushing hole to enable interaction of locking element with circular bead acting as valve seat. Pivoted steering lever and handle for transportation with fastening base are located inside head at an angle to head axis. To fix handle under bushing flange, handle base is provided with tie-down slot covering bushing under flange and pressing handle base to head. Pivoted lever with threaded hole is attached to rod via pusher being in the shape of screw with retainer nut. Head material is profiled iron of aluminium alloy. It is processed by pressing and drawing method. Bushing material is brass.

EFFECT: improvement of operational reliability and reduction of mechanism repair cost and price.

4 cl, 4 dwg

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