Mobile fire extinguishing complex
FIELD: fire safety.
SUBSTANCE: mobile fire extinguishing complex contains the ATV 1 used as a vehicle which by means of the coupling device 2 is coupled with a monoaxial trailer 3. On the trailer 3 a water vessel 4, a motor-pump 5 and a hydraulic accumulator 6 are placed. In the vessel 4 the filter 7 is installed with a possibility of extraction which placed inside the vessel 4 hollow; this filter is designed as a hollow metal cylinder the free end of which is punched with holes, and on the second end of the filter 7 connected to the suction sleeve 8 the float 9 is rigidly fixed. The motor-pump 5 is connected with the pressure head pipeline 11 the cavity of which is interconnected with the hydraulic accumulator 6 and the distributor 12 with the taps 13 which by means of connecting hoses 14 are connected with the side fire monitors 15 and with the manual fire monitor 16. The pressure head pipeline 11 is fitted with the bypass valve 17 which is connected to the overflow pipeline 18. On ATV 1 the additional frontal frame 20 with hingedly fixed axis 21 is installed on which the side fire monitors 15 connected among themselves by means of two rods 22 are placed. On the axle 21 the sliding screw spacer 23 is hingedly fixed, and in the top part of the frame 20 the lifting spacer 24 hingedly connected to the fixed part of the sliding spacer 23 is installed.
EFFECT: offered mobile fire extinguishing complex will allow to suppress forest fires in conditions of far location or absence of open water sources near the fire scene.
The present invention relates to the field of fire-fighting equipment and can be used as a means of fighting forest fires.
Known vehicle for fighting fires (patent RF №2438740 C1, IPC: AS 27/00, AS 3/02, publ. 10.01.2012 bul. No. 1 - equivalent), containing successively United traction devices, traction chassis and two Autonomous trailer chassis with water tanks, pumps medium and high pressure hoses, guns and equipment to create a flashback arrester shaft and removing from the path of obstacles in the form of metal pipes and trees.
The disadvantage of analog is the high energy consumption and low maneuverability and mobility of the vehicle, which makes feasible its use in situations that require a quick response.
Known forest fire pump (Fire fighting equipment. K. N. Stepanov, J. S. Povsic, I. V. Rybkin. Guide: Moscow: ZAO "special Equipment", 2003, 400 p. P. - 102, 103 - prototype) containing vehicle (motorcycle), motor pump, the suction sleeve with a filter in the form of a grid, connecting hoses (sleeves) and fire barrels to supply water to the zone of fire.
The disadvantage of this pump is the inability to carry out forest fires in places where there are no open �sources of water. Also consider using the prototype it is impossible to produce extinguishing the ground fire, while moving the vehicle along a line of fire spread. In addition, when lowering the suction sleeve with mesh on the bottom of the reservoir along with the water pump tighten silt, sand and sediment, and when the location of the filter at the water surface its mesh becomes clogged with leaves, debris and branches that, in General, adversely affects the operation of the equipment and lead to premature wear.
An object of the invention is the extension of functionality by providing the possibility of fire suppression in the absence of public sources of water, and allow to extinguish surface fires, moving the vehicle along the line of fire, and, in addition, to reduce the likelihood of through the filter of sediment and to avoid clogging of the filter element of leaves and debris.
The object is achieved in that in a mobile complex fire extinguishing, containing a vehicle, a motor pump, the suction hood with filters, connecting hoses and fire barrels, according to the invention where the vehicle is in the form of a Quad bike through the coupling device is connected with a single axle trailer on which is placed a water tank, �rich in the upper base of the vessel has a hole in which is installed with the possibility of removal of the placed inside the cavity of the container filter, made in the form of a hollow metal cylinder, the free end of which is perforated with holes of the same diameter and the second end of the filter connected to the suction sleeve is rigidly secured to the float, in addition, through the check valve motor pump is connected with the discharge conduit, the cavity of which communicates with the accumulator and dispenser with taps, which through connecting hoses associated with fire barrels, also the discharge pipe is provided with a bypass valve, which is connected to the overflow conduit communicating with the cavity of the water tank, in addition, in the hole, made in the upper base of the vessel, fixed cleaning the cylindrical surface of the filter rubber o-ring and Quad installed additional front frame, having in the lower part of the hinged axis, on which is placed side-fire barrels, which are interconnected by two rods, forming a four-bar mechanism, also on the axis of the hinged sliding screw spacer, the second end of which is connected to rods, in addition, in the upper part of the frame is mounted a lifting thrust, pivotally connected with the stationary part of the sliding thrust, ne�Edna part of Quad bike mounted rack on which the coil connection hose, and in the upper part fixed manual fire barrel.
Unlike the proposed complex fire from the prototype is that it is provided with a movable vehicle, a water tank, which can be used when extinguishing fires in the absence of public sources of water, and the presence of side fire barrel makes it possible to produce extinguishing ground fires, moving the vehicle along a line of fire spread. And with the help of a sliding and lifting screw thrust you can change the position of the side of fire hoses, thereby adjusting the range of the jet.
Also the filter through which intake is installed in the tank with the possibility of removal, it can be used for water intake from ponds. Thus pumped from an open reservoir water can be used for fire fighting if a fire burning near the pond), and for refilling with water.
As in the upper part of the filter installed the float, the lower end of the filter, on which there are holes for the water intake, there will always be submerged in water to avoid clogging of the filter element of leaves and debris floating on the surface of the water. P�eacham float also allows the filter to sink to the bottom, that reduces the probability of getting through the filter of sediment, silt or sand.
Due to the fact that in the opening made in the upper base of the vessel for placement of the filter with the rubber ring, cylindrical surface of the filter is cleaned as when inserting it into the container and when it is ejected from the container.
In addition, the manifold, the valve helps conserve water due to the possibility of engagement when fighting one, two or three fire hoses depending on the situation.
Fig. 1 shows a mobile system for fire fighting, General view.
Fig. 2 shows a diagram of the water supply to fire guns.
Fig. 3 shows additional front frame with side fire barrels, bottom view.
Fig. 4 shows additional front frame with side fire barrels, side view.
The proposed mobile system fire extinguishing contains used as vehicle ATV 1, connected by means of the coupling device 2 with a single axle trailer 3 hosting capacity 4 water. At the rear of the ATV 1 is mounted the pump 5 and the accumulator 6. In the upper base of the vessel 4 is provided with an aperture in which is mounted extract placed inside the cavity of the container 4, the filter 7, a ful�United in the form of a hollow metal cylinder, the free end of which is perforated with holes of the same diameter and the second end of the filter 7 connected to the suction sleeve 8, is rigidly secured to the float 9. Through the check valve 10 (Fig. 2) the motor pump 5 is connected with the discharge conduit 11, the cavity of which communicates with the accumulator 6 and the dispenser 12 of the valve 13, which by means of connecting hoses 14 are connected with the side fire barrels 15 and manual fire barrel 16. Discharge pipe 11 is provided with an overflow valve 17, which is connected to the overflow conduit 18 communicating with the cavity of the container 4. In the opening made in the upper base of the vessel 4 for placement of the filter 7 attached cleaning the cylindrical surface of the filter 7 rubber ring 19.
ATV 1 installed additional front frame 20 (Fig. 3) having in the lower part of the hinged axle 21 on which is placed lateral fire-hose nozzles 15, which are interconnected by two rods 22, forming a four-bar mechanism. The axis 21 is also hinged sliding screw the spacers 23, the second end of which is connected to rods 22, and in the upper part of the frame 20 is mounted a lifting thrust 24 (Fig. 4) which is pivotally connected to the stationary part of the sliding abutments 23.
On the front of the ATV 1 is mounted strut 25.�th the coil 26 with one of the connecting hoses 14, and in its upper part with the help of clamps 27 and 28 fixed manual fire barrel 16.
The complex works in two schemes.
Extinguish a forest fire in the event of significant removal or absence of open water sources in the area of the fire proceeds as follows. ATV 1 filled with water capacity of 4 moves to the position of fire. At the entrance to the fire burning launch of the motor-pump 5 through the filter 7 through the suction sleeve 8 begins the withdrawal of water from the tank 4. Then the water from the pump 5 through a check valve 10 is fed to the pressure conduit 11 and fills the cavity of the hydraulic accumulator 6. Upon reaching the operating pressure in the pressure conduit 11 is opened by-pass valve 17 and the water on perelivnogo conduit 18 flows back into the container 4. Then opening valves 13 dispenser 12 water under pressure supplied via the connecting hoses 14 to fire guns 15 and 16. With the help of cranes 13 depending on the situation when fighting can be employed both one and two sidetracks 15, together with them, can be used manual and the barrel 16, which helps conserve water. Also the latches 27 and 28 allow you to install a manual fire barrel 16 on stand 25 at different angles to the horizontal and vertical plane, it allows you to quickl� to extinguish the fire with the barrel 16 and simultaneously to control the ATV 1.
When extinguishing the ground fire spreading along roads or clearings, water is fed to one side of the shafts 15, and the complex moves along the propagation line of fire, making its suppression. If necessary, use manual and the barrel 16. When extinguishing the fire on both sides of the route complex use both sides of the barrel 15.
If the fire or localized intense, the ATV 1 is stopped and loosened the clamps 27 and 28, manual fire barrel 16 is removed from the rack 25 and manually send a jet of water on the hearth burning.
In the case of a reservoir in the area of the fire extinguishing proceeds as follows. The complex is placed at the waterfront, after which the filter 7 is removed from the container 4 and dipped it into the pond as far away from the shore, where sufficient depth. Include the pump 5 and are drawing water from the reservoir. Loosening the clamps 27 and 28, manual fire barrel 16 is removed from the rack 25, and the connecting hose, which is connected with a manual barrel 16, is unwound from the reel 26. Then extinguish the fire, using the barrel 16. After completion of the filter 7 is set back into the container 4, and in the process of its installation rubber ring 19 clears the cylindrical surface of the filter 7.
In case of refilling 4 water from the reservoir must be closed cu�HN 13.
The use of the proposed mobile system fire suppression would allow for suppression of forest fires in a significant removal or absence of open water sources in the area of the fire, and extinguishing ground fires, moving the vehicle along a line of fire spread, with cost consuming water. In addition, the application of the proposed design will reduce the likelihood of penetration through the filter of sediment, silt or sand, which will increase the life of the equipment.
Mobile system for fire extinguishing, containing a vehicle, a motor pump, the suction hood with filters, connecting hoses and fire nozzles, characterized in that the vehicle is in the form of a Quad bike through the coupling device is connected with a single axle trailer on which is placed a water reservoir, the upper base of the vessel has an aperture in which is mounted extract placed inside the cavity of the container filter, made in the form of a hollow metal cylinder, the free end of which is perforated with holes of the same diameter and the second end of the filter connected to the suction sleeve is rigidly secured to the float, in addition, through the non-return valve pump is connected with the discharge conduit,�axis of which is communicated with the accumulator and dispenser with taps, through connecting hoses associated with fire barrels, also the discharge pipe is provided with a bypass valve, which is connected to the overflow conduit communicating with the cavity of the water tank, in addition, the opening made in the upper base of the vessel, fixed cleaning the cylindrical surface of the filter rubber o-ring and Quad installed additional front frame, having in the lower part of the hinged axis, on which is placed side-fire barrels, which are interconnected by two rods, forming a four-bar mechanism, also on the axis of the hinged sliding screw spacer, the second end of which is connected with rods in addition, in the upper part of the frame is mounted a lifting thrust, pivotally connected with the stationary part of the sliding fit on the front of the ATV rack mounted, on which the coil connection hose, and in the upper part fixed manual fire barrel.
FIELD: fire safety.
SUBSTANCE: device of delivery of substances intended for extinguishing fire in confined spaces comprises a cannon 1 and a shell 2. The shell is made compound comprising a heavy cylinder 3 in the form of a cup and a light cylinder 4 connected monolithically to the conical part of the shell 2, in the form of a cup, and which outer diameter is equal to the inner diameter of the heavy cylinder, mounted to the sheared split pins 5 inside the heavy cylinder 3, forming the closed chamber 6 to accommodate the substance 7 for extinguishing fire. On the surface of the light cylinder 4 there are grooves 8 for the sheared split pins 5 with the length equal to the distance from the head 9 of the light cylinder 4 to the openings for the split pins 5.
EFFECT: possibility of extinguishing fires in confined spaces in the distance and the use of cannonry for peaceful purposes.
FIELD: fire safety.
SUBSTANCE: method of detection of peat fire comprises identification of the most fire-hazardous parts of peatlands and placement in the part area of vertical wells. The perforated tubes are mounted in the wells, the tubes are filled with smoke-generating pyrotechnic composition and the wellheads are covered with granulometric material. The coordinates of the wells are recorded on the forest fire map. The boundaries of the fire are determined by the smoke location over the wells and its coordinates are recorded on the map. In the well cavity simultaneously with feeding the exhaust gases of internal combustion engine the fine powder of calcium carbonate is fed.
EFFECT: in comparison with the analogue, the method provides the ability of use of signal wells on peatlands with high content of ferrous iron due to feeding into the well cavity of exhaust gases of the internal combustion engine and powder of calcium carbonate that suppress the vital activity of iron bacteria.
FIELD: firefighting means.
SUBSTANCE: invention relates to extinguishing of large-scale fires. Experience of extinguishing such fires demonstrated practical inefficiency of existing methods for a series of reasons, the main of which is insufficiency and often unavailability of the main agent for fire extinguishing - water. The original source of the main fire extinguishing agent is atmospheric air, which contains water vapours. Absolute humidity of air, i.e. mass of water vapour per unit of air volume, depends on temperature and atmospheric pressure. According to statistics, in average on the soil surface on 1 m2 there is 28.5 kg of water vapour available in air above this surface. Production of water from air, according to the proposed method, is carried out by cooling of air volume above fire zone to the temperature below the dew point temperature, i.e. when water vapour condenses and falls in the form of rain (or snow). Air above the fire zone is cooled by means of even distribution of liquefied nitrogen in its volume from reservoirs installed in aircrafts, in layers at different altitudes in the altitude range from several hundreds meters to the soil surface to approximately 1500 m. Simultaneously air is cooled in the surface layer from reservoirs with liquefied nitrogen, placed on the surface of soil along the perimeter of the fire front.
EFFECT: method to extinguish large-scale fires has a scientific basis, which makes it possible to produce the original source of this main fire extinguishing agent, not using technical means for delivery of water to seats of fire from natural or manmade water reservoirs, which may be located at significant distances from the fire zone.
3 cl, 1 dwg
FIELD: fire safety.
SUBSTANCE: method comprises forming inside a facility of a hypoxic gas-air medium with the set initial low content of oxygen under normal pressure of hot water supply; the oxygen content is set depending on the type of the pressurised space. Monitoring is carried out by sensors of pre-alarm pre-fire state of the gas-air medium, and the pressure and oxygen content are adjusted if needed, in the specified period of time, by reducing the oxygen content and increasing the content of nitrogen or inert gas to the values of the concentration and pressure specified for this space, sufficient to detect and eliminate the causes of the pre-alarm state. After a series of measures the initial set value of oxygen content is reset at the normal pressure of hot water supply for each closed space of the pressurised facility. The device for implementing the method comprises a system control unit, a sensor assembly of controlling parameters of the gas-air medium and the assembly of cylinders with inert gas or a mixture of inert gases, it additionally comprises a sensor assembly of pre-alarm control, connected by information-control and pneumatic bonds, a regeneration unit of the gas-air medium, an assembly of cylinders with oxygen, an assembly of oxygen distributors, an assembly of high pressure air cylinders, an assembly of the gas-air medium purification with the filter of purification from mechanical impurities and the filter of purification from harmful chemicals and carbon oxide, an assembly of separation of air, an assembly of high pressure compressor, and a compartment control unit in each controlled space of the pressurised facility.
EFFECT: reduction of the risk of combustion and fire on submarines and other pressurised inhabited facilities by introducing pre-alarm monitoring and creation in them of the hypoxic gas-air media, with simultaneous creating the conditions for normal functioning of the submarine crew under conditions of an extended voyage.
18 cl, 4 dwg
FIELD: fire safety.
SUBSTANCE: fire suppression system of premises with increased gas medium pressure, containing a firm sealed tank for storage and feeding of fresh water under pressure on the pipeline into the premises on the centrifugal sprayers, a high pressure air cylinder connected by the pipelines through the air reducer to the tank, the device of limiting the rate of pressure increase, the device of maintaining the differential pressure during decompression, and the control panel with alarm sensors. The air reducer over the membrane cavity is connected by the pipeline to the volume of the protected premises and creates a predetermined differential pressure between the sprayers and the premises, the centrifugal sprayers on the swirlers have spring-loaded movable cylinders, the regulating sections of tangential windows of swirlers, maintaining the required opening angle of the jet of atomised water, the device of maintaining the differential pressure during decompression by the pipelines is connected to the tank and the volume of the protected premises.
EFFECT: improvement of efficiency of the fire suppression system by increasing the intensity of supply of atomised water with an increase of pressure of gas medium during a fire.
FIELD: fire safety.
SUBSTANCE: in the unit of gaseous fire suppression for places of storing containers with flammable and combustible liquids in temporary settlement of population affected by emergencies, comprising a control unit and series-connected insulated tank for liquid carbon dioxide with the pipeline of supplying carbon dioxide and lock and release device located outside the tank, the switching gears and the distribution pipeline with sprayers. The lock and release device is located above the level of liquid carbon dioxide in the tank, and the intake of carbon dioxide is carried out through the pipeline in the tank from the bottom part of the latter, each nozzle housing is formed with a channel for supplying liquid and comprises a housing in which the screw is pressed, and a fitting for supplying liquid, and the housing consists of two coaxial interconnected cylindrical sleeves: the sleeve of larger diameter and the sleeve of smaller diameter, and the inside the sleeve of smaller diameter, coaxially to it, a screw is mounted, rigidly connected to its inner surface, such as pressed in it, and the outer surface of the screw is a helical groove and inside the screw a hole with a screw thread is made, and in the sleeve of larger diameter coaxially to it, the fitting is located, fixedly mounted in it, such as by the threaded connection through the sealing gasket, and in the fitting a cylindrical opening is coaxially formed passing into axially located diffuser which is connected to a cylindrical chamber formed by the inner surface of the sleeve of smaller diameter and the end surface of the screw, and the end surface of the sleeve of smaller diameter is fixed to two obliquely located rods, on each of which active sprayers are secured, for example made in the form of blades resting in the lower part on stops fixed to the rods perpendicular to their axes. The rods are tilted in the direction away from the axis of the injector, i.e. along the conical surface which apex is directed towards the sleeve of the larger diameter.
EFFECT: increased efficiency of fire-extinguishing.
FIELD: fire-fighting means.
SUBSTANCE: method relates to the field of forestry and can be used to determine the location of forest fire. The method of establishing the location of forest fire comprises identification of the most fire-hazard plots of peat lands and location of vertical wells on the area of plots. The perforated pipes are placed in the wells. The pipes are filled with smoke generating pyrotechnic composition, the granulometric material is poured into the wellheads. The coordinates of the wells are recorded on the forest fire map. The patrol routes are divided, patrol observation of smoke is carried out. The boundaries of the fire are determined by the smoke location over the wells. The coordinates of the smoke location are recorded on the forest fire map. The granulometric material is mixed with encapsulated herbicide glyphosate powder in an amount of 5-15% by weight of the granulometric material, and then the mixture is poured to the wellheads.
EFFECT: proposed method in comparison with the analogue provides enhancement of accuracy of determining location of the forest fire by processing the filling of wellhead with glyphosate eliminating vegetation and retaining high intensity of smoke generation during continuous operation of wells.
FIELD: fire-fighting equipment.
SUBSTANCE: invention relates to a fire-fighting system. The fire suppression system in a confined space comprises a fire alarm device, the devices of the supply actuation of refrigerant and the neutral gas from the relevant sources and the regulator of the refrigerant supply. Moreover, in the regulator of the refrigerant supply the slide-valve and the sleeve covering it is made with through channels, and when the device of the supply actuation of refrigerant is closed the slide-valve and the sleeve are spring-loaded to the opening of the annular channel in the sleeve. At that the system is made with the ability of short-term total consumption supply of refrigerant through the annular channel in the sleeve immediately after actuation of the device of refrigerant supply and the limited flow of refrigerant, after closing the device of supply actuation of neutral gas from the membrane nitrogen generator.
EFFECT: increased reliability and reduced weight of the device is provided due to creation of the regulator, which provides short-term total consumption supply of the refrigerant.
5 cl, 4 dwg
FIELD: tobacco industry.
SUBSTANCE: usage: invention relates to a cigarette extinguishment method and to a self- extinguishing cigarette for the method implementation. The specificity of the self- extinguishing cigarette (containing a tobacco core consisting of fragments with low and high tobacco stuffing density, a paper cartridge enveloping the core and a filter) is as follows: fragments with high stuffing density are placed along the tobacco core length from the open end to the filter in the form of a conic frustum, oriented with conicity towards the filter, while fragments with low stuffing density are placed along the periphery of the conic frustum between the latter and the paper cartridge.
EFFECT: self- extinguishing cigarette development.
2 cl, 2 dwg
FIELD: fire-prevention facilities.
SUBSTANCE: method for location determining of forest fire comprises identifying the most fire-hazardous sites of peatland, accommodation at area of the sites of vertical wells, installation in wells of perforated pipes, filling the pipes with smoke-generating pyrotechnic composition, pouring the wellheads with granulometric material, recording of coordinates of the wells on the forest fire map, breakdown of patrol routes, patrol observation of smoke, determining of boundary of fire according to location of smoke over the wells, recording its coordinates on the forest fire map. At that the granulometric material is mixed with the cuprous sulphate, and then the wellheads are poured with the mixture.
EFFECT: improving the accuracy of location determining of forest fire.
FIELD: fire-fighting equipment, particularly for volumetric fire extinguishing in closed space.
SUBSTANCE: method involves separate feeding cooled gaseous aerosol with progressively increasing temperature to upper space of room to be protected at the command of control system; additionally supplying sprays of fire-extinguishing powder mixed with products of solid fuel combustion across the whole room volume or locally in lower room part at maximum speed, wherein quantity of supplied aerosol, initial time, direction and necessity of fire-extinguishing powder supply is determined from fire spread speed and nature. Fire-extinguishing substance is supplied in accordance with the following program. Under false operation of control system or in the case of small fire apparatus is given a command to supply gaseous aerosol. If fire covers the full room volume apparatus is given a command in 5 - 10 min to supply gaseous aerosol and, when needed, if fire is not extinguished, apparatus is given a command to additionally supply fire-extinguishing powder. If fire is accompanied by explosion and in the case of room air-tightness failure apparatus is given a command to simultaneous supply gaseous aerosol and fire-extinguishing powder. Fire-extinguishing apparatus comprises at least one aerosol generator AG 1, at least one powder extinguisher PE 2 with solid-fuel displacing gas generator GG 3, control system for operating fire-extinguishing composition supply connected to aerosol generator and powder extinguisher. Control system has sensors 4 and control-and-triggering means 5. Aerosol generator and gas generator GG 3 are provided with cooling inert nozzles. Control system is programmed to actuate aerosol generator and powder extinguisher in dependence of fire nature.
EFFECT: increased efficiency, reduced time of space filling with fire-extinguishing composition and, simultaneously, increased economy and safety to people, possibility to extinguish fires at early stage in large rooms with dense equipment arrangement in the case of people present and in rooms with large quantities of pressurized combustible materials which may explode with creation of high-power fire sites distributed across the whole room volume; increased consumption of fire-extinguishing composition and reduced volumetric concentration thereof, increased reliability of fire-extinguishing system in temperature range from -60° to +60°.
10 cl, 2 dwg
FIELD: protective and emergency equipment for servicing ground launch structures.
SUBSTANCE: in launching the vehicle, compressed gas is fed through collector nozzles to engine zone via one of mains to main circular main where pressure more than 0.6 Mpa is maintained. Simultaneously, air is fed to engine zone through nozzles of additional collectors via two mains. As pressure drops below 0.6 Mpa, air is fed via two other mains supplying gas to main collector and via three mains of additional collector. In case of repeated drop of pressure to 0.6 Mpa, air is fed via two remaining mains of main collector. Proposed system includes compressed gas bottles and gas supply mains with controllable shut-off fittings. Mains are combined (five mains) by means of main and additional collectors. Additional collector is provided with two or more divergent nozzles. Fittings are made in form of normally closed pneumatic valves controlled by separate groups. Circular collector nozzles are conical in shape and are located at angles of 30 deg. and 45 deg. relative to vertical axis of launch vehicle.
EFFECT: enhanced efficiency of fire prevention.
3 cl, 6 dwg
FIELD: fire-fighting technique; extinguishing large-scale fires.
SUBSTANCE: proposed fire airship includes disk-shaped aerostatic body, power plants with variable thrust vector, crew cabin with control system, landing gear and mooring arrangement. Body consists of upper and lower elastic convex envelopes whose edges are secured on frame which is closed over perimeter ; this frame is connected with tubular member by means of rigid radial beams forming the central compartment; said tubular member is located along vertical axis of aerostatic body whose cavity is divided by inclined gas-tight membrane into lighter-than-air compartment containing the bottles charged with this gas and thermal ballasting compartment located under first one. Upper and lower convex envelopes are provided with upper load-bearing ring secured on end face of tubular member and lower load-bearing ring with sleeve forming the cargo compartment. Inner and outer edges of gas-tight membrane are secured respectively on closed frame and on lower load-bearing ring which is connected with closed frame and with rigid tubular member by means of longitudinally rigid members. Water tank installed in cargo compartment is connected by means of flexible hose with pipe mounted coaxially relative to rigid tubular member; pipe terminates in funnel secured on upper load-bearing ring. Water tank is provided with outlet pipe for forming water packs dropped onto burning site.
EFFECT: enhanced efficiency of fire-fighting.
4 cl, 6 dwg
FIELD: means of explosion preventive maintenance at ammunition depots.
SUBSTANCE: the plant has a interconnected compressed air source, measuring instruments, valves, vessels with ingredients of starting foaming agent and a mixer with air or liquid channels at the inlet. The air channel has an adjusting valve and/or pressure regulator, and the mixer - at the outlet a foaming hose with a hose barrel at the free end. At the inlet the mixer is provided with an injector connected through a vessel to the ingredients of the starting solution by means of a suck-in hose and a liquid channel with a water feed pump. The ratio of the inside diameter of the foaming hose-to-the length makes up 1:(500...1000).
EFFECT: provided compactness of the plant and expanded its functional potentialities.
10 cl, 18 dwg
FIELD: fire prevention, particularly for power engineering and transport, to design rooms, compartments and so on characterized by risk of explosive gaseous mixture (air and inflammable gas, combustible liquid vapor) accumulation, namely to protect combustible material storage facilities, power plant rooms, compartments in vehicles and so on.
SUBSTANCE: the essence in the invention is in the following. When combustible gaseous mixture even having stoichiometric fuel-oxidizer ratio ignites detonation wave appears practically immediately. For detonation wave forming some space is needed in which separate compression waves generated by flame are united in common compression shock, namely in detonation wave. The detonation wave unlike the compression wave immediately heats gaseous mixture behind wave front. Because of above heating detonation wave moves with supersonic speed, pressure in wave front is substantially higher than in the case of normal gas burning. Above pressure increase takes place practically instantly at distance equal to several free paths of gas molecules. To take into consideration above processes system has adjusting partitions arranged so that straight distance between any two points in free space does not exceed length of predetonation zone in stoichiometric mixture of above gaseous mixture including oxygen, wherein the mixture is under atmospheric pressure if the volume communicates with atmosphere and is under maximal possible pressure if the volume is closed.
EFFECT: prevention of gaseous mixture detonation.
FIELD: shaped-charge action on solid media, in particular, ice masses and emergency objects with the aim of their destruction, applicable for destruction of ice jams, elimination of avalanche-like and mud flow situations, liquidation of aftereffects of natural and technogeneous cataclysms, fires, as well as at production of fire-fighting water reservoirs.
SUBSTANCE: blasting supply has a cover, frame closed by a cover and made in the form of a latticework, propelled substance, explosive placed in the cover, the cover has two layers, pulled up on the latticed frame expansible upwards made of ribs converging in the lower part, the propelled substance is placed between two layers of the cover, an antioverturning is attached to the cover from the top.
EFFECT: enhanced efficiency of the blasting effect on the objects to be destructed.
22 cl, 1 dwg, 6 ex
FIELD: fire-fighting, particularly to prevent or suppress fire in closed space.
SUBSTANCE: method involves supplying oxygen displacing gas in the room to provide the first inert level characterized by reduced oxygen content in comparison with natural one; additionally stepwise or rapidly supplying oxygen displacing gas into the room to provide several different inert levels with greater oxygen content reduction. Stepwise gas supply is performed if needed. Rapid oxygen supply is carried out in the case of fire outbreak. Device for above method realization is also disclosed. The device comprises oxygen sensing means used to detect oxygen content in predetermined room and oxygen displacing gas source.
EFFECT: increased simplicity and reduced cost of displacing gas storage.
17 cl, 5 dwg
FIELD: fire-fighting, particularly to extinguish fires in decompression pressure chambers of ships and boats and in deep-ocean diving systems.
SUBSTANCE: method involves creating anoxic gas medium by compression with compressed helium at maximal possible rate to obtain pressure necessary to produce oxygen-nitrogen-helium medium having oxygen concentration of not more than 10-12%; holding above medium to combat fire; decompressing divers in special mode, which provides gas equilibrium in diver's organisms, when current summary human tissues saturation with nitrogen and helium does not exceed outer pressure value, and sufficient oxygenation.
EFFECT: increased efficiency of fire extinguishment due to provision of oxygen concentration, which does not sustain combustion, increased safety of divers due to necessary partial nitrogen pressure provision and due to correct decompression mode usage.
FIELD: rescue engineering; devices for rescue operations.
SUBSTANCE: the invention is pertaining to the device for rescue operations, which may be used both for fire extinguishing and for evacuation of people. The technical result of the invention achievable at realization of the given invention is expansion of the functional capabilities of the device for rescue operations. The device for rescue operations includes the skeleton, the lateral fencing wall made with the capability of folding in the vertical direction, the bottom. The lateral fencing wall is made out of the fire-resistant and waterproof material, has the lobes anchored by one edge along the perimeter of the bottom and above the mesh bottom. The lobes in their hanging down position cover the whole surface of the mesh bottom. The ends of some lobes have flaps made out of the waterproof material overlapping the gaps between the lobes while they are in their down position. The top end of one of the lobes is connected to the end of the cord. The skeleton has the upper and the lower hollow rim rings. At that the internal volume of the upper rim ring ensures buoyancy of the device.
EFFECT: the invention ensures expansion of the functional capabilities of the device for rescue operations.
3 cl, 7 dwg
FIELD: fire fighting, particularly to extinguish fire in large volatile flammable liquid storage facilities under low ambient temperatures in northern zones.
SUBSTANCE: method involves delivering fire-extinguishing powder via pipeline to fire site so that fire-extinguishing powder is fluidized and aerated along the full pipeline length. Fire-extinguishing system comprises fire-extinguishing powder supply pipeline installed in potential fire initiation zone, accumulation vessels for fire-extinguishing powder, compressed gas source and alarm means. The supply pipeline has gas-permeable longitudinal partition, which divides the pipeline into low-pressure and high-pressure cavities. The pipeline is provided with outlet valves and is connected with compressed gas source through accumulation vessels. Alarm means are made as infrared sensors and are communicated with control electronic apparatus. Each outlet valve is provided with electric drive connected with control electronic apparatus.
EFFECT: provision of fire extinguishing in the cases, in which water and fire-extinguishing foam usage is impossible, increased reliability and safety of fire suppression under low temperatures, reduced fire-extinguishing system response time and decreased maintenance costs.
7 cl, 4 dwg