LT6797B - Massive fire extinguishing system by using aviation - Google Patents

Abstract

Invention is dedicated for effective massive fire extinguishing by using airplanes or helicopters, equipped with back-ramp or trapdoor for loading/off-loading for loading/off-loading extinguishing materials. Invention goal - make fire extinguishing more effective, using natural quick compounded ecological, environment friendly materials. Invention target being reached by placing containers/barrels 1 filled with fire extinguishing powder (2), inside airplane and fixing them. Each barrel 1 have covers 3 on both ends and in central part have integrated micro gas generator (4) with controller (5) sensors. There are 4 different conditions sensors used by controller (5) to issue issue command "yes". When barrel 1 is throw out of airplane, at optimal altitude 50-100 m. above surface controller (5) gives command to micro gas generator (4), it blovs and push out of barrel 1 covers 3 and extinguishing material 2. Then extinguishing powder 2 optimal spreading over fire surface. Fire extinguishing system container/barrel 1 and cover 3 made from natural, quick compounded ecological, environment friendly material. As fire extinguishing material 2 is used ABC class powder, an agent determined for extinguishing fires.

Description

Technical field

The invention relates to fire protection, namely to extinguishing fires using aircraft with hatches or end ramps.

State of the art

There is a well-known helicopter tank for helicopters, Helibucket no. 20100174217A1 (US). With the help of ropes, the tank, with the water in it, is attached to a hook mounted on the outside of the aircraft. The upper part of the tank consists of a lid with a foam tank, a float and a mechanism box. The lower part of the tank consists of a base with drain, filling valves and a pump. The cover is connected to the base by a flexible fabric. Loading, unloading, folding of the fabric is performed by a motor with three rolls.

The technical solution referred to uses an external tank attached to the aircraft, which uses water for extinguishing, in most cases it is not sufficient to extinguish the fire, as the amount of water taken is rather limited and new, expensive (fuel consumption). is usually far from the extinguishing site, and in addition, due to the high temperature, it is very difficult for the aircraft to be in the epicenter of the fire to achieve maximum extinguishing efficiency.

There is a known fire extinguishing device integrated in an aircraft for receiving fire extinguishing material for extinguishing a fire by activating it from the aircraft during flight, directing this extinguishing material towards the fire site. The device consists of a container and at least one closed independent container located inside it, as well as at least one openable exit hatch, for independent containers, the opening of which allows to fall out of these independent containers filled with fire extinguishing material. Here, each independent tank has integrated filling valves that are hermetically sealed. The container has integrated access hatches arranged so that they coincide with the valves, which facilitates the filling of the independent containers placed in the container. The container also has integrated locking means for attaching it to the aircraft structure, and its fuselage is round in cross-section as viewed from the transverse plane and has cover caps pivotally connected to the ends of the central body, these cover lids forming the closing elements of this central body. provided internal cavities for the placement of accessories and mechanisms. The container also has an exit hatch consisting of an integrated hatch opening in the central housing and forming part of the enclosing structure of this central housing, and its central housing successively tapers towards its free ends. The means of securing the container to the aircraft structure shall have connectors for securing the mechanism to the central junction box integrated in the securing device, which is adapted to be externally attached to the outside of the aircraft (see WO / 2013/117784, A62C3 / 02, B64D 1/16.)

This technical solution is complex, complicated and inefficient, as is the case with most aircraft extinguishing systems, which provide water-based extinguishing, especially when the water sources are far away. It is known that the ability of aircraft to load the required amount of extinguishing agents is very limited, so it is not economically viable to use relatively heavy water with low extinguishing efficiency (water only cools the combustion surface). In addition, in places of fire, due to the high temperature differences between the fire and the ambient air, high air flows (wind) occur, the atmospheric pressure changes, which results in a complicated extinguishing agent, i.e. water entering the fire. Thus, this method of extinguishing is not effective.

The essence of the invention

The aim of the invention is to increase the extinguishing efficiency by using environmentally friendly, bioiriferous materials, spreading them in an optimal layer.

The object of the invention is achieved in that an array of fire extinguishers from an aircraft for extinguishing an in-flight fire, consisting of at least one container 1 with a fire extinguishing material 2 placed therein, the container being cylindrical having lids 3 at its ends and and an instantaneous gas generator 4 with a controller 5 is installed in its inner central part 10. In addition, the housing shell of the container 1 with lids 3 at its ends is made of a biofabric material (eg pulp / recycled paper raw material), the fire extinguishing material 2 is an ABC class monoammonium phosphate powder, and the controller 5 consists of a temperature 6 of different parameters connected in parallel. , free fall 7, timer 8, atmospheric pressure change 9 sensors.

Brief description of the drawings

The essence of the invention is illustrated in the figures.

fig. the capacity diagram of the extinguishing system is shown;

fig. the block diagram of the controller is shown.

fig. depicts an aircraft with loaded extinguishing tanks.

The system consists of a cylindrical extinguishing tank 1 filled with extinguishing agent 2 (ABC class monoammonium phosphate powder) inside and has two lids 3 at the ends. Container 1 is made of eco-friendly bioirio material, such as pulp or recycled paper, and is therefore environmentally friendly. In the central part of the inner tank 1 there is an integrated instantaneous gas generator 4, which is activated by a command from a controller 5 consisting of sensors / sensors of different parameters connected in parallel - temperature 6, free fall 7, timer 8 and atmospheric pressure change 9. task altitudes) all sensors would issue a common "Yes" command, controller 5 activates an instantaneous gas generator 4 operating with a "pyro-effect". The instantaneous gas generator 4 with the controller 5 is located in the working cavity 10 of the container 1.

Realization of the invention

The system works like this.

Fully prepared tanks 1 (one tank weighs about 300 kg, can be loaded on an aircraft up to the maximum ballast allowance) are placed inside the aircraft through a hatch or ramp and secured so that the operator can safely control the unloading of the tanks 1 through the ramp with a special latch. When the aircraft is flying at a safe flight altitude, at the fire (flight altitude - not less than 200 meters from the ground), the operator releases the tank locking valve and opens the required number of tanks 1. Tanks 1 fall, at the set height, control 5 and issues a command to the gas generator 4. The generator 4 creates an instantaneous pressure on the extinguishing material 2 inside the tank 1, which expands to expel the lids 3 and the extinguishing material 2 is spread at a height of 50-100 m above the fire. It is estimated that the contents of one tank 1 extinguish a fire area of about 50 m ² . The housing shell and lids 3 of the container 1 are made of recycled, recycled paper, are bio-friendly and environmentally friendly. After extinguishing the fire, the casings of the tanks 1 can be collected and disposed of if necessary. Extinguishing media - Class ABC monoammonium phosphate powder is certified as environmentally friendly, extinguishing by blocking the entry of oxygen into the fire area. The chemical of this composition is used in agriculture as an ammonium phosphate fertilizer.

Industrial applicability

Compared to the prototype, the new set of constructive elements allows to achieve the set goal, i. with the help of aircraft, to extinguish fires efficiently and at the lowest cost, using environmentally friendly, biofuels, spreading them in an optimal layer exactly at the fire.

Such prepared fire-fighting tanks may be stored in airport storage areas or areas where there is a potential risk of fire and shall be used promptly in the event of fire.

Claims (5)

Definition of the invention An aircraft fire extinguishing system for in-flight firefighting, comprising at least one container 1 with a fire extinguishing material 2 therein, characterized in that the container 1 is cylindrical with two lids 3 at its ends which are located inside the aircraft, and in its inner central part 10 there is a built-in instantaneous gas generator 4 with a controller 5. An aircraft fire extinguishing system according to claim 1, characterized in that, under the effect of pressure, the covers 3 can be pushed out and the fire extinguishing material 2 is poured out at the extinguishing point. An aircraft fire extinguishing system according to claim 1, characterized in that the casing of the container 1 with the lids 3 at its ends is made of a biofuel material (e.g. pulp / recycled paper raw material). An aircraft fire extinguishing system according to claim 1, characterized in that the fire extinguishing agent 2 is a monoammonium phosphate powder of class ABC. An aircraft fire extinguishing system according to claim 1, characterized in that the controller 5 comprises sensors / sensors for temperature 6, free fall 7, timer 8, atmospheric pressure change 9 connected in parallel to each other.