DE102009043301A1 - Method for extinguishing fire, particularly forest fire, involves packing and transporting extinguishers in containers for blowing off at fire areas, and thin-walled flexible bladders are filled with extinguishers - Google Patents

Abstract

The method involves packing and transporting the extinguishers in the containers (1) for blowing off at the fire areas. The thin-walled flexible bladders are filled with the extinguishers, where the container is filled with the quenching water. The latex wall has a thickness of 1 micrometer to 90 micrometers.

Description

The invention relates to a method and a known device for extinguishing fire sources according to the preamble of claim 1.

Commonly known and common are methods and devices for extinguishing fires in which a container filled with water or extinguishing agent is transported in aircraft or helicopters and emptied over the fire. A disadvantage of this solution is the low extinguishing effect, due to the fact that a large part of the water does not penetrate into the fire site by spraying and premature evaporation.

To DE 297 00 335 U1 is a mobile device for firefighting known in which a container filled with water placed in the fire and the container is blown up by the heated water and thus the water / steam is discharged via discharge pipes in the fire. This device is complicated in their design and handling and also has a low efficiency in fighting fires.

In the EP 1 053 935 A1 a method and an apparatus for carrying out the method will be described in which the extinguishing agent is targeted shot by gas in the fire. The method and the device according to EP 1 053 935 A1 is designed to determine the timing and firing direction to safely transport the extinguishing agent into the source of the fire. A disadvantage is the complicated design and low efficiency in fire fighting.

To WO 03/063966 A1 is a method and devices are known for extinguishing fires, in the shells made of plastic, PVC u. Ä. Chemical substances are used, which are filled with extinguishing agent, stored in containers and thrown over the fire from the containers.

In the application of these known features is disadvantageous in that the relatively large and heavy shells only by impact on the ground or by sharp-edged objects such. As branches, are destroyed and only then release the contained extinguishing agent. The bowls are larger in size and complicated to fill. Basically disadvantageous are the relatively heavy shells that are transported loosely in collecting containers. When the water bag is thrown off these trays, which still arrive on the ground, will only extinguish punctiform and strip-like areas and will not cause a compact, large-area extinguishing effect. The filled bowls occupy a correspondingly large space. Moreover, in order to get close enough to the source of the fire after shedding, the shells must be correspondingly thick and large, which makes them heavy. This in turn means that the weight to be transported is primarily determined by the weight of the containers and by the total weight of the shells and the amount of water measured according to the transport volume of the missile is limited accordingly. The facilities are heavy, complicated and not efficient in extinguishing. In addition, it is absolutely necessary to delete several times due to the low extinguishing effect. In the known advanced methods and devices for extinguishing fires is fundamentally disadvantageous that additional facilities are required, which must be made separately and make the facilities additionally expensive.

A disadvantage of most known designs are basically already before the core of the fire or on the ground atomized and evaporated extinguishing agent, so that only inadequately the fire can be deleted.

The object of the invention is to provide a method for a known device of the type mentioned that eliminates the disadvantages of the known solutions and a large amount of water quickly and gently without explosive phenomena efficiently enters the scene, the weight of the enclosures of the extinguishing agent on a Minimized minimum, and thus the weight of the transport container is kept low with large amount of extinguishing agent. In addition, the space available for transporting the extinguishing agent, z. B. in the plane, maximum utilization and thus be filled with maximum transported amount of extinguishing agent. Known transport container for extinguishing fires should be used, which are structurally simple and inexpensive to produce.

The object is achieved by the features of claim 1, d. h., Are added in well-known containers for the transport of extinguishing agents extinguishing agent in addition to special packaging and transported this mixture in missiles and compactly dropped into the fire point mist.

Advantageous embodiments of the subject invention will become apparent from the dependent claims.

An embodiment of the invention will be explained in more detail with reference to the drawings. The drawings show in:

1 : the schematic representation of the discharge of the extinguishing agent mixture over the fire site

2 : the cut through an elastic bubble.

In an already known container ( 1 ) is filled on the ground, before departure, extinguishing agent, especially water. In this water are filled with extinguishing agent bubbles ( 2 ) added. The initially unilaterally sealed sheaths are finally closed after filling with extinguishing agents in a known manner and assume a spherical or a tubular shape. These used bubbles ( 2 ) consist of natural products, such as latex. The wall thickness of the bubble wrap ( 3 ) is 1 μm to 90 μm. The bubbles ( 2 ) are each filled with 10 ml, maximum of 50 l, extinguishing agent. The bubbles ( 2 ) are elastic due to the material used and are in contact with other bubbles ( 2 ) readily. The container ( 1 ) is filled with 1,000 liters of water, for example, and the blisters filled with a total of 9,000 liters ( 2 ). The filled bubbles ( 2 ) are in the filled container ( 1 ) floating so that they are transported undamaged. The filled container ( 1 ) is now transported to the missile and flown to the scene. The container ( 1 ) can just as well be filled in the aircraft itself. Above the fire, the container ( 1 ) emptied in a known manner by means of opening devices and a mixture ( 4 ) gets into the fire. By the formed mixture ( 4 ) consisting of water and water-filled bubbles ( 2 ), it is achieved that the mixture ( 4 ) point-like and like a compact structure is fog-like released on the fire, whereby a premature atomization and evaporation of the filled bubbles ( 2 ) is avoided. The bubbles ( 2 ) burst or are only destroyed below the top of the flame. Thus, premature sputtering especially of the extinguishing agent content of the bubbles ( 2 ) avoided.

It is within the meaning of the invention, when instead of water in the bubbles ( 2 ) and in the container ( 1 ) other, already known and proven extinguishing agents are used.

The method can be advantageously used in the simplest known devices for transporting the extinguishing water and it requires no further adaptation or modification of constructive solutions of the facilities.

A further advantage is that with the solution according to the invention a first deletion can be done with high, almost 90% success and then can follow more easily with known simple means deletions.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 29700335 U1 [0003]
• EP 1053935 A1 [0004, 0004]
• WO 03/063966 Al [0005]

Claims (7)

Method for extinguishing fires, in particular forest fires, in which extinguishing agent is individually packed, in containers ( 1 ) and drained at the point of fire, characterized in that the container filled with extinguishing water ( 1 ) thin-walled elastic bladder filled with extinguishing agent ( 2 ) are added from natural products, such as latex with wall thicknesses of 1 .mu.m to 90 .mu.m, and a mixture ( 4 ), consisting of fire-extinguishing water and therein floating with extinguishing agent-filled bubbles ( 2 ), compact from the container ( 1 ) is drained mistily over the fire. Method according to claim 1, characterized in that bubbles formed from tubes ( 2 ), which were closed on both sides during filling with extinguishing agent, into the container ( 1 ) are added. Method according to claims 1 and 2, characterized in that bubbles ( 2 ) filled with extinguishing agent of 10 ml to 50 l and the container ( 1 ) are added. Method according to Claims 1 to 3, characterized in that the extinguishing water volume in the container ( 1 ) Pale ( 2 ) with a extinguishing water volume in the ratio of 1/9 [1 part firefighting water, 9 parts with extinguishing water-filled bubbles ( 2 )]. Method according to claims 1 to 4, characterized in that the bubbles ( 2 ) are added to the extinguishing water with different size. Method according to claim 5, characterized in that small bubbles ( 2 ) in the size of ≤ 1 cm diameter and large bubbles ( 2 ) in the size of ≤ 50 cm in diameter are added to the extinguishing water. Method according to claims 1 to 6, characterized in that the bubbles ( 2 ) are filled with other known extinguishing agents.

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