Fire localization and/or extinguishing method

FIELD: fire-fighting equipment, particularly for extinguishing/localizing large-scale and powerful fires, including forest and forest-steppe fires, difficult-to-access fires, namely steep mountains, impassable taiga, jungle or fires close to risk areas (explosive environment or high-temperature areas).

SUBSTANCE: method involves exerting influence of air-blast wave on fire site and applying high-speed jet of air-dispersed fire-extinguishing mixture formed during fire-suppression device explosion. Fire-suppression device comprises vessel with fire-extinguishing composition and dispersing charge. Vessel is provided with structural members providing device operation in service conditions. Structural members are separated from vessel until dispersing charge blasting.

EFFECT: extended range of technical means for fire-suppression device delivery to fire site, reduced time of their preparing to use, prevention of device fragments spreading after device blasting.

4 cl, 3 dwg

 

The invention relates to fire fighting, and more specifically relates to a method of localization and/or fire, and can be used for effective control of large-scale and powerful fires, including forest and forest-steppe, and fires that occur in remote places as geographically (steep mountains, impassable taiga, jungle), and because of the proximity of hazards (explosions, high temperature).

For extinguishing forest fires (upland or combined) are widely used methods based on the creation of fire barriers through a comprehensive impact, combining a system of local explosions and spray extinguishing compositions, stretched in time.

One of the known methods of localization and suppression of fires is in the delivery paropamisus devices using a mobile launcher multiple rocket launchers (copyright certificate №1789232 And 62 With 2/00, 1993).

The way fire A.S. 1789232 is the following. At approach of the projectile to the front of the fire signal windshield heat sensor activated Central charge explosives (he) and reset the housing halves, which are further down on parachutes. Simultaneously released bundles of items, freely falling, reach areas of the fire. Some items are designed to fight local fires and equipped with inertial sensors that are triggered when a collision with the earth. Another part of the elements is initiated in the forest canopy from thermal sensors that are configured in different temperature regimes.

This method has several disadvantages, significantly reducing its effectiveness and increasing costs in implementation. The presence of two types of composite components and their serial initiating cause separate at the place and time of exposure to fire air blast and fire extinguishing composition. It may help re-ignition at individual sites and, perhaps more to the development of fire, because on these sites only stops the fire, and the hearth was not isolated and is not cooled the fire extinguishing composition.

Using volley fire for delivery of the elements into the fire zone also reduces the effectiveness of the method, since for a fixed caliber rockets and missiles is the mandatory presence of auxiliary devices (engine, the charge for the disclosure of the corps, parachute). The low value of the coefficient of the filling means of delivery significantly increases the cost to fight the fires.

In addition, when using volley fire, aiming is carried out on areas that may the be ineffective in localization of fire, because, first of all, you need to stop promoting his front, and not to suppress the flames on the area covered by the fire.

A significant disadvantage of this method is the formation of the fragmentation of the field when the alarm housing and components, made usually of metal, which excludes the possibility of its use in extinguishing a fire in an urban environment and significantly reduces the security of its use in fighting forest and steppe fires.

No less dangerous is the mining district fire failed in action elements.

Another known method of localizing and extinguishing fires, mainly forest, also based on the use of the air shock wave in front of the fire with the aim of creating long height and width of the zone of high pressure (patent RF №1834667 And 62 With 2/00, 1993).

This method consists of placing the strip of forest on the way to the front of the fire many paropamisus devices. At the command of the operator in the vicinity of the front of the fire by the control signals sequentially injected into effect paropamisadae device by undermining the dispersing charge, at this form fine fuel-air cloud. Then a few milliseconds this cloud undermine, the way the decomposing front air shock wave knocks legkokredit objects small branches, dry leaves, grass, and fire ground fire, forming a fire lane.

The main disadvantage of this method is the high likelihood of unauthorized ignition of fuel-air clouds before actuation of the initiator. This is because in the fire zone, and especially in his hearth, the gradients of temperature and air velocity are of random nature, which prevents the existence of clouds of stoichiometric composition and complicates the choice of time delay detonation of the initiator.

In the best case is incomplete detonation, and often burning air-fuel mixture, causing an artificially created fire and leads to its further strengthening. Even with a full detonation of fuel-air mixture and the creation of air shock waves the effect of the latter is not supported by additional cooling and insulation of the fire area due to the lack of the possibility of using fire extinguishing compositions, which dramatically reduces the effectiveness of this method.

In addition, substantial disadvantages of this method include:

- slivers in the field of material paropamisus devices at the time of triggering dispersing charge, which eliminates the possibility of application of the method for extinguishing a fire in the city the conditions and significantly reduces the security of its application for suppression of forest and steppe fires;

- inability to use this method to hard-to-reach places and for extinguishing large fires.

Closest to the proposed method is a method of localization and/or suppression of fires, is the impact of the air shock wave created by using delivered to the fire zone paropamisus devices with filler and dispersing explosive charge fired from the control signal, as filler paropamisus devices use extinguishing substance, in this advance, depending on the characteristics of fire, choose a delivery means paropamisus devices, determine areas that require actuation paropamisus devices, depending on the means of delivery determine the parameter at a given value of which provides the control signal triggering the dispersion of the explosive charge used paropamisadae devices equipped with sensors selected parameter configured on a given value of the parameter at which to produce undermining the dispersion of the explosive charge with the simultaneous formation of the air shock wave, the velocity head of air, products of detonation spraying fire-extinguishing composition with the formation of melkodisperstnoy clouds, and the size and q is the sites chosen depending on the type of fire and sizes formed melkodisperstnoy clouds of fire extinguishing composition (patent RF №2111032, 6 And 62 With 3/02 - prototype).

This method of localization and/or fire provides multiple expansion band suppression fire while reducing ten times the surface density of the fire extinguishing composition, and also allows you to suppress the fire in hard to reach places.

The main disadvantage of this method is a long period of time from detection of a fire prior to its localization and/or suppression. This is because it is necessary to carry out a reconnaissance of the fire, to determine its type and size, choose the area of the fire to extinguish, to determine the parameter at which is produced a control signal to configure the sensor paropamisus devices on the selected option, then choose a delivery vehicle paropamisus devices to the selected area of the fire.

In addition, substantial disadvantages of this method include:

- impossibility of using airplanes and helicopters of army aviation, equipped beamed holders for hanging goods, as a means of delivery paropamisus devices because of the lack in their composition of design elements, ensuring their performance in service use, for example suspension system under the beam holder, which drastically reduces the effectiveness of this method;

-low coefficient of payload in the case of use as a means of delivery of the helicopter, under the bottom of which is suspended container with paropamisadae devices;

- slivers in the field of metal parts paropamisus devices in the field of dispersing charge (clutch, boxes, case of charge), which excludes the possibility of applying this method for extinguishing a fire in an urban environment and significantly reduces the security of its application for suppression of forest and steppe fires.

Object of the present invention is to improve the effectiveness and safety of fire fighting using paropamisus devices.

The technical result consists in increasing range of delivery vehicles paropamisus devices, reducing the time to prepare them for use, in the absence of fragmentation of the field when triggered paropamisadae device.

To achieve this result, the method of localization and/or fire, is the impact on the fire zone air shock waves and high-speed Aero-mixture fire extinguishing composition created in the explosion paropamisadae device containing dispersing the charge and a container of fire extinguishing composition according to the invention, the capacity paropamisadae device supply elements of the design that ensures the delivery of this device is VA to the fire zone and/or installation of this device on the path of fire spread (allowing operation paropamisadae device in the service obrashenii), these structural elements are separated from the vessel before the explosion dispersing charge.

In particular, when the delivery paropamisadae air carriers separation from the capacity of these structural elements operate on the trajectory of the Autonomous movement paropamisadae device.

In particular, when installing paropamisadae device in the path of propagation of the fire Department of the capacity of these structural elements is done according to the operator's command.

In particular, when the separation from the vessel to the specified elements of a design report for more speed relative to the speed of movement of the vessel.

These design elements may include, for example, a suspension system with ears and elements separating it from the tank when reset paropamisadae device with air carriers, equipped beamed holders bulk, and additionally may include tools for installation and subsequent separation from paropamisadae device when installing it on the path of fire spread, while the suspension system is used for loading or unloading.

Supply capacity paropamisadae devices these elements makes it possible to ensure constant readiness paropamisadae the disorder for use as air transport, that provides the ability to patrol the forest-steppe areas of airplanes or helicopters flown and ready-to-use paropamisadae devices, and ground transportation during the installation paropamisadae device on the path of fire spread (reduced time of loading and unloading), thereby significantly reducing the time from discovery of fire prior to its localization.

The lack of fragmentation of the field when triggered paropamisadae device due to:

- supply capacity paropamisadae device components, ensuring the functioning paropamisadae device in official use, for example suspension system that perceives its loads during transportation, which helped to produce a container with stabilizer, dispersing case of a charge of thermoplastic material, do not create when triggered paropamisadae device fragmentation of the field outside the cloud of fine fire extinguishing composition;

Department of the capacity of the structural elements, ensuring the functioning paropamisadae device in the service appeal before the explosion dispersing charge, thus eliminating intensive exposure to a shock wave and detonation products of aspergilosis charge.

The expansion of the range of means of delivery is provided through supply capacity paropamisadae device components, ensuring the functioning paropamisadae device in official use, for example, a suspension system with eyelets for hanging on the beam holders of cargo, which, ultimately, will be used to deliver paropamisus devices to fire both civil and military aircraft, and various types of vehicles.

In addition, when using military aviation as a means of delivery paropamisus devices of the fire is increased ratio of useful load by eliminating the need to use special container for accommodation, transportation and discharge paropamisus devices.

The method of localization and/or suppression of fire may be supplemented by the following actions and order of their execution:

- dropping paropamisadae device with air carriers separation from capacity design elements, ensuring the functioning paropamisadae device in official use, carry on the trajectory of the Autonomous movement paropamisadae device;

- when installing paropamisadae device on the way of distribution on the Ara Department of the capacity of the structural elements, ensuring the functioning paropamisadae device in the service treatment, carried out by the team before the explosion dispersing charge;

when separation from the capacity of the structural elements, ensuring the functioning paropamisadae device in service use, report the additional speed relative to the speed of movement of the vessel.

The proposed method of localization and/or suppression of fire is illustrated by drawings.

1 schematically depicts the method of localization and/or fire in the case of the use of air delivery paropamisus devices.

Figure 2 schematically depicts the method of localization and/or fire in case of installation of fire extinguishing means in the path of propagation of the fire.

Figure 3 shows paropamisadae device, namely the extinguishing agent.

The method of localization and/or fire in the General form as follows.

Assemble paropamisadae device, then supply its capacity units, to ensure its functioning in the service outstanding, deliver paropamisadae device to the site of the fire, the explosion of the dispersing charge produce separation from the capacity of the structural elements, providing the operation is their paropamisadae device in the service address.

Example 1

In the case of use as a means of delivery paropamisus devices air carriers method of localization and/or suppression of fire is as follows.

On the beam holder cargo air carrier 1 (Fig 1) hung paropamisadae device 2, to which the suspension on the carrier supply design elements, ensuring their functioning in official use, in this case, the suspension system 3.

Above the fire zone to produce a reset paropamisus devices on flight paths which make the separation of the suspension system 3. When meeting with the ground (or tree) is triggered dispersing charge and is formed in the zone of fire fine cloud of fire extinguishing composition 4 with simultaneous formation of the air shock wave, followed by a pressure of air and products of detonation.

Example 2

The method of localization and/or suppression of fire when installed paropamisadae device on the path of fire spread is as follows.

Before loading on a land vehicle paropamisadae device provided with structural elements that ensure its functioning in the service address, for example suspension system with ears. Lifting mechanism, using Ushkov otvesnoy system, set paropamisadae device on the vehicle and deliver it to the place of protection from a possible fire.

Set paropamisadae device on the path of fire spread in a vertical position with the additional use of design elements that ensure its functioning in official use, such as farm 3A (figure 2). Lead electrical circuit from the operator to the elements of separation from the vessel suspension system and the farm.

In case of fire movement in the direction of the protected object by the operator to produce separation from capacity design elements, ensuring the functioning paropamisadae device in official use, in this case, the suspension system and the farm, and involves dispersing the charge.

When triggered, the dispersion of the charge in the fire zone is formed of fine cloud of fire extinguishing composition 4 with simultaneous formation of the air shock wave, followed by a pressure of air and products of detonation.

As paropamisadae device, ensure the implementation of the method of localization and/or fire, can be extinguishing agent, is shown in figure 3, which has a reservoir 5 containing fire-extinguishing composition 6, dispersing the charge 7, the suspension system 3, probally 8, the means of initiation 9 dispersing charge with an electric control system 10.

The operation of the device is as follows.

When applying an electric signal initiation means 9 and probally 8 occurs with a given time delay actuation of perebatov 8 and the harness 3 is separated from the tank 5, and then is initiated by dispersing a charge of 7, when triggered, which is formed of the air shock wave and high-speed flow of Aero-mixture fire extinguishing composition.

1. The method of localization and/or fire, is the impact on the fire zone air shock waves and high-speed Aero-mixture fire extinguishing composition created in the explosion paropamisadae device containing dispersing the charge and a container of fire extinguishing composition, characterized in that capacity paropamisadae device supply elements of the design that ensures the delivery of this unit to the fire zone and/or installation of this device the spread of fire, in which these structural elements are separated from the vessel before the explosion dispersing charge.

2. The method according to claim 1, characterized in that delivery paropamisadae air carriers separation from the capacity of these structural elements operate on the trajectory of the Autonomous movement paropamisadae device.

3. SPO is about according to claim 1, characterized in that when installing paropamisadae device in the path of propagation of the fire Department of the capacity of these structural elements is done according to the operator's command.

4. The method according to claim 2, characterized in that when the separation from the vessel to the specified elements of a design report for more speed relative to the speed of movement of the vessel.



 

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