RU2726100C1 - Multi-barrel universal spraying module with volley or shots - Google Patents

Abstract

FIELD: fire-fighting equipment.SUBSTANCE: invention relates to fire extinguishing equipment and can be used as actuating modules, automated fire extinguishing systems, installations on automotive chassis, carriages, trailers, and so forth. Multi-barrel module consisting of barrels, containing igniter, blow-off charge and sprayed composition. According to the invention, the module housing comprises two rigidly attached support walls having axisymmetric holes of different diameter, the housing accommodating at least two parallel shafts, each barrel consists of two connected through a sleeve different-calibre tubes of different length and thickness of walls, wherein rear pipe has smaller diameter, length, but larger thickness of walls compared to front pipe, on rear pipe on both sides of rear support wall of module there are shock absorbers, inside the breech of the barrel there is a sealed sleeve containing an electro-initiator and a spray powder charge, and in the main part of the shaft - to a pipe of a large calibre - a lightweight disposable container with a sprayed fire-extinguishing composition is placed.EFFECT: invention has a large perspective of development and further improvement, as well as many fields of application in the field of extinguishing a wide range of various fires.3 cl, 2 dwg

Description

The invention relates to a fire extinguishing technique, in particular, to installations for supplying fire extinguishing compositions (OS) to a fire source. The invention can be used as an actuating element of an automated fire extinguishing system, an OS supply module on carriages, trailers, wheeled and tracked chassis, etc.

The analogue. Of the modern fire fighting equipment for extinguishing water, the most powerful in intensity up to 200 l / s and range up to 120 m are the supply of low-viscosity liquids: water, foaming solutions, the Italian company Silvani modules - stationary, weighing more than 20 tons and transported on a special trailer. This module works as an intermediate pressure boosting pumping station from at least 4-5 pumping fire engines. The scope of the module is limited by the long preparation of the start of the OS supply, large water consumption, requiring a powerful water supply or a nearby reservoir.

Prototype. Closest to the alleged invention are the author’s patents: No. 20088048 RU “Fire extinguishing installation” (Russia) and No. 1263 5A UA “Zahisna bag and barrel fired fire extinguishing installation” (Ukraine), containing a packet of impulse barrels filled with sequentially placed mass of fire extinguishing agent and propellant charge.

Numerous field tests and the practical use of pilot plants made it possible to identify a number of serious design flaws that prevent the long-term, high-performance operation of these plants: 1 - imperfections in the barrel structure that prevent quick reloading, 2 - the absence of mechanisms for effectively damping barrel rollback during firing leads to frequent structural failures barrel mounts; when maneuvering a multi-barrel module installation or after the first salvo, a charge displacement in the barrel channel relative to the igniter was noted, which led to incomplete combustion of the charge, a decrease in the initial velocity and, as a consequence, the dispersion range of the OS from the barrels; various initial velocities were observed when salvoing from several barrels and the completeness of the release of OS from various trunks, which reduced the scale of the functional impact.

The objective of the invention is the creation of a pulsed, multi-barrel module as a typical element of various multi-barrel installations, by improving the design of the barrel, sliding mechanisms and the package of trunks.

The problem is solved in that the multi-barrel module consisting of trunks containing an igniter, blow-out charge and spray composition, characterized in that the module housing contains two rigidly fastened walls having axisymmetric, different diameter holes for the trunks, in the housing there are at least two parallel trunks, each barrel consists of two, connected through a sleeve of different-sized pipes of different lengths and wall thicknesses, while the rear pipe has a smaller caliber, length but greater wall thickness, compared with the front pipe, to the rear pipe on both sides of the rear support wall the module is equipped with recoil shock absorbers, inside the breech of the barrel there is a sealed sleeve containing an electric capsule (igniter) and a spray powder charge, and in the main part of the barrel - a large-caliber pipe - there is a sprayed OS fixed by wad in the pipe channel, or this OS is enclosed in a light disposable container.

The module is axisymmetric in cross section in the form of a square or circle, and the trunks inside the module are arranged in a square-nested, honeycomb or checkerboard pattern. The front thin and back supporting thicker walls are rigidly connected by metal rods and the axis of the module is rigidly fixed at the point of intersection, while the lateral, upper and lower surfaces of the module can be covered with thin sheets of metal or other material.

The rear support wall of the housing on the back side is a vertically oriented leg of the power triangle, the other leg is a horizontally oriented rod, and the hypotenuse is an inclined rod on which the front wall of the module housing is fixed.

The module is installed on the seat using fasteners equipped with shock absorbers. These modules can be installed - fixed or with adjustable rotation in horizontal and vertical planes: on fixed seats inside the building, workshop or outside, for example, around the technological installation; on towed chassis - a trolley, trailer, carriage, railway platform or suspended helicopter platform, the latter, at least for delivery to the position; on self-propelled chassis - a jeep, truck or tractor, tank, self-propelled - artillery, railcar, boat, ship, ferry, helicopter, etc.

The spray charge sleeve has a caliber of 20 mm to 100 mm.

A shock absorber is installed on the breech of the barrel to mitigate the recoil when fired.

In FIG. 1 shows a general view of the module on the right side.

In FIG. 2 shows a trunk in longitudinal section.

The multi-barrel universal pulsed spray module (Fig. 1) contains two or more barrels. The module case contains transverse walls - front 1 guide and rear, support 2, in which axisymmetric holes are made and trunks are inserted, consisting of the main, front pipe 3 of a large caliber, the rear pipe 4 connected rigidly by a sleeve 5 (Fig. 2), for example, on threads or bolts. A shutter 6 with handles 7 is screwed on the breech of the barrel — back tube 4 to unscrew and screw the shutter 6, and a cartridge 8 with an electric initiator 9 and a spray charge 10 of quick-burning gunpowder tightly closed with a thick, thick wad 11 is inserted into the pipe channel 4 combustion charge. On the rear pipe 4, a rollback shock absorber 12 is placed between the cut of the coupling and the rear support wall of the module. An airtight container 13 of light material, such as cardboard or plastic, which does not form far flying fragments with a damaging effect, is inserted into the channel of the front pipe 1 through the muzzle hole. The container is filled with OS 14, for example, a mixture of sand and water, a liquid, gel, a foaming solution, natural water. The front 1 and rear 2 walls from the right and left sides are connected by crossing rods 15, at the intersection of which plates 16 are rigidly fixed to the axis 17 of the module. Plate 16, in turn, is fixed by struts 18 on the seat of the carriage 19.

The multi-barrel module works as follows. Containers 13 with sprayed OS 14 are inserted from the muzzle hole into the trunks. Then, the shutters are unscrewed from the breech of the barrel 4 by the handles 7 and the cartridges 8 with electric initiators 9 and spray charges are inserted 10. After that, the shutters are closed. From the control panel with a weak current, the integrity of the initiating network is controlled. Then the installation is transported to the position and aimed at the fire, using traditional mechanisms of vertical and horizontal guidance.

Moreover, for each salvo, based on the type, scale and degree of development of the fire, the number of barrels is selected, their mutual arrangement and the sequence of initiation, which allows flexible and precise control of the scale, power, range of the protective effect, as well as its type, given that different groups trunks can be charged with various extinguishing agents.

When an electrical impulse is applied, the electric initiator is triggered, initiating explosive combustion (deflagration) of the powder charge, which is independent of the pressure in the combustion chamber, in contrast to conventional powders. The powder charge burns out almost completely before the container with the OS begins to move. The wave of powder gases formed during the combustion of the charge destroys the container 13 and mixes with the OS 14, forming a high-speed, gas-dispersed flow with high dynamic pressure, with a compacted front that is resistant to aerodynamic drag.

Beyond the section of the barrel, the gas-dispersed flows merge into a single vortex with a continuous front, resistant to aerodynamic drag and extending over long distances and providing an effective large-scale impact.

This multi-barrel module allows for a flexible, multi-faceted protective action, up to large-scale fire extinguishing of classes A, B, C, D of a wide range of sizes and power.

Claims (3)

1. A multi-barrel module, consisting of trunks containing an igniter, an outburst charge and a spray composition, characterized in that the module housing contains two rigidly fastened support walls having axisymmetric, different diameter holes for the trunks, at least two parallel trunks are in the housing, each the barrel consists of two different-sized pipes connected through the coupling of different lengths and wall thicknesses, while the rear pipe has a smaller caliber, length but greater wall thickness compared to the front pipe, rollback shock absorbers are put on the rear pipe on both sides of the back support wall of the module, inside the breech of the barrel there is a sealed sleeve containing an electric initiator and a spray powder charge, and in the main part of the barrel - a large-caliber pipe - a lightweight disposable container with a sprayed fire extinguishing composition is placed. 2. The multi-barrel module according to claim 1, characterized in that the module is axisymmetric and cross-sectional in the shape of a square or circle, and the trunks inside the module are regularly arranged in a square-nested, honeycomb or checkerboard pattern, the back support wall is thicker than the front, the walls are rigidly connected and the axis of the module is rigidly fixed at the intersection of the joints, while the lateral, upper and lower surfaces of the module can be covered with thin sheets of metal or other material. 3. The multi-barrel module according to claim 1, characterized in that the rear support wall on the rear side is a vertically oriented leg of the power triangle, the other leg is a horizontally oriented rod, and the hypotenuse is an inclined rod on which the guide front wall of the module housing is fixed.

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