RU2763575C1 - Pulsed spray block of barrels on the tank chassis - Google Patents

Abstract

FIELD: fire protection.

SUBSTANCE: pulsed spray block of barrels on the chassis of a tank, including a block of barrels mounted on the chassis, each of which contains a blow-out charge with an igniter and a projectile with a fire extinguishing compound having a sealed shell made of material easily destroyed by the impact of an explosive wave on it, while each barrel has an individual shock absorber and initiator connected to electrical contacts, characterized in that each barrel is made of a pipe with a round threaded channel, and the breech sub-caliber part is made with a diameter corresponding to the caliber of the main part of the barrel and screwed at one end into the barrel for a length of at least the caliber of the main part of the barrel, and at the other end of the breech of the barrel, a bolt is screwed, behind which a cartridge with a blow-out charge and an igniter is installed, and the breech of the barrel passes through the support wall of the multi-barrel block of trunks and spring shock absorbers or rings of elastic material are located on both sides of the support wall, in turn, in the barrel channel, the projectile is installed in such a way that between it and the cartridge an air chamber is formed, moreover, from the front end of the projectile to the trunk section, there is a section with a length of no more than 1.4 projectile lengths.

EFFECT: extension of the range of solutions for fire protection.

1 cl, 3 dwg

Description

SUBSTANCE: invention relates to fire-fighting equipment, for supplying fire-extinguishing compositions to a fire zone and serves to eliminate fires.

From the prior art, a fire, tracked vehicle "Vetluga" (manufactured by GAZ) is known on the chassis of an armored personnel carrier BTR-152, on the seat of the tower with a heavy machine gun with a caliber of up to 12.7 mm and the corresponding level of recoil force of which a 22-barrel module is mounted, throwing containers with powder at a distance of up to 200-300 m. with separate shots and volleys of no more than two barrels. When falling or colliding on the flight path, the head fuse is activated, initiating a spray charge, which sprays the powder with the creation of a narrow (about 1 m in diameter) air-powder jet. Extinguishing area with a jet - no more than 5-7 sq.m. In a dual-barrel salvo, the projectiles typically fall far apart, and their extinguishing effects do not interact or reinforce each other. (https://fireman.club/statyi-polzovateley/gusenichnyie-pozharnyie-mashinyi-istoriya-sozdaniya-klassyi-i-osnovnyie-tth/)

The disadvantage of the Vetluga fire engine is that its use is possible only when extinguishing small fire areas, there is a high probability of increased combustion when the container falls onto the burning area due to turbulence of the air above the burning surface and the surface itself, especially in the case of a burning liquid, scatter of burning fragments and increased oxygen supply. In addition, very serious injuries are possible if the container or fragments of the container walls hit a person during spraying. Thus, the existing analogue is low effective for extinguishing local fires and practically unsuitable for extinguishing large-scale fires.

The closest technical solution to the proposed one is a fire extinguishing installation (RF No. 2008048, publ. 28.02.1994), including a package of barrels 5 mounted on the chassis, each of which has an individual shock absorber 16 and is connected to an automatic control system for the time of supply of doses of fire extinguishing composition to the outbreak fire. In each barrel 5, the expelling charge 9 and the fire-extinguishing composition 8 are enclosed in a hermetic shell 7 made of material that is easily destroyed by an explosive wave. The expelling charge and the fire extinguishing composition are separated from each other and the walls of the shell by means of wads.

The disadvantage of the installation according to patent No. 2008048 is that the spray range is insufficient.

The purpose of the invention is to create a highly maneuverable device due to the tank chassis for extinguishing fires with maximum range, scale and extinguishing efficiency.

The technical result is to increase the range and area of spraying.

The technical result is achieved by the proposed pulse-spray block of barrels on the chassis of the tank, including a block of barrels mounted on the chassis, each of the barrels of the block contains an expelling charge with an igniter and a projectile with a fire extinguishing composition, having a sealed shell made of a material that is easily destructible under the influence of an explosive wave. Each barrel has an individual shock absorber and an initiator connected to electrical contacts. Each barrel is made of a pipe with a round, machined channel and is equipped with a breech sub-caliber part, made with a diameter corresponding to the caliber of the main part of the barrel and screwed at one end into the barrel channel for a length not less than the caliber of the main part of the barrel. A bolt is screwed onto the other end of the breech breech, behind which a cartridge with an expelling charge and an igniter is installed, and the breech breech passes through the support wall of the multi-barrel block of barrels and spring shock absorbers and rings made of elastic material are located on this part of the barrel on both sides of the support wall. The projectile is installed in the barrel bore in such a way that an air chamber is formed between it and the cartridge, and from the front end of the projectile to the barrel cut there is a section no more than 1.4 container lengths long.

Each barrel from a block of barrels is made of a metal pipe with a groove of its channel to a caliber in the range from 198 to 210 mm, with an outer diameter of the pipe equal to 219 mm, and pipe wall thicknesses equal to either 7.7 mm or 8.8 mm or 10.2 mm.

Figure 1 shows two shafts from a block of shafts, with one shaft shown in section; Fig.2 - side view of the device; in fig. 3 is a rear view of the device.

The device consists of a tank 1, a seat 2 for an artillery turret, on which a pulse spray barrel 3 is mounted. Each of the pulse spray barrels 4 is made of a metal pipe with a groove of its channel to a caliber in the range from 198 to 210 mm, with an outer diameter of the pipe equal to 219 mm, and pipe wall thicknesses equal to either 7.7 mm or 8.8 mm or 10.2 mm. Each barrel 4 is equipped with a breech 5, screwed at one end into the bore 4. A bolt 6 is screwed onto the other end of the breech 5. The breech 5 of the barrels 4 rests/passes on the supporting wall 7. On both sides of the wall 7 on the breech 5 of each barrel 4 are fitted with springs or rubber rings - shock absorbers 8 made of elastic material to dampen recoil and promote barrel rolling. The main parts of the barrels 4 pass through the guide wall 9 of the block 3. Inside the bore 4 there is a projectile 10 filled with a fire extinguishing agent 11. Inside the breech there is a spray cartridge 12 with an expelling charge and an igniter 14. The projectile 10 is installed in such a way that between it and the cartridge 12 an air chamber is formed, and from the front end of the projectile 10 to the cut of the barrel 4 there is a section no longer than 1.4 container lengths for the formation of a fire extinguishing composition during acceleration - a compacted, gas-dispersed, cylindrical mass with increased internal pressure.

Tank 1 with block 3 extinguishes the fire as follows. A truck with an open side drives up to tank 1, in the back of which there is a horizontally oriented rack with the number of slots for shells and spray charges equal to the number of barrels in barrel block 3. Two workers (possibly the crew of the vehicle) sequentially load the barrel block, first they load shells 10 from the muzzle holes of the barrels 4, then the block of barrels 3 and the rack are turned 1800 and the shutters 6 of the breech parts 5 are sequentially turned off. The parts 5 are loaded with cartridges 12 and the shutters are screwed. At the same time, it is important that the shutters 6 are screwed onto precisely those barrels 4 from which they were screwed before loading. A fully charged device is first tested by weak currents of the integrity of the initiating networks in all trunks and receives permission to enter the position. Tank 1 drives up to the fire and moves to the extinguishing position. The operator in the car through the periscope installed in the block of trunks 3 directs the block of trunks 3 to a fire. Using the shooting table, abbreviated - on the control panel, more complete - in the computer of the machine, the operator manually dials the number of barrels and their relative position for a volley in such a way that the size of the focus on the sight with a display overlaps with a contour denoting, depending on the number of barrels, the contour of the effective area the impact of this volley.

After selecting the volley scheme, the button (switch) for supplying the initiating pulse to the group of barrels selected for the volley is pressed. Almost simultaneously, the electric igniters 14 fire, igniting the spray charges. Spray charges create waves of propellant gases that destroy shells 10 in the barrel bore 4, then gas jets penetrate into the masses of fire extinguishing compositions 11, accelerating them with the creation of local jet vortices. Behind the cut of the barrels 4, they merge into a single vortex or flurry with a single, powerful, intensely expanding front, which, moving along the trajectory of movement, performs combined extinguishing: knocking down the flame + removing smoke + penetrating spraying of a mass of finely dispersed OS particles + isolation of the combustion zone from atmospheric oxygen, heat flows and radiation.

Claims (2)

1. Pulsed spray barrel block on the tank chassis, including a barrel block mounted on the chassis, each of which contains an expelling charge with an igniter and a projectile with a fire extinguishing composition, having a sealed shell of a material that is easily destructible under the influence of an explosive wave, while each barrel has an individual a shock absorber and an initiator connected to electrical contacts, characterized in that each barrel is made of a pipe with a round machined channel, and the breech sub-caliber part is made with a diameter corresponding to the caliber of the main part of the barrel and is screwed at one end into the barrel channel for a length of at least the caliber of the main part of the barrel , and a bolt is screwed onto the other end of the breech breech, behind which a cartridge with an expelling charge and an igniter is installed, and the breech breech passes through the support wall of the multi-barrel block of barrels and on this part of the barrel on both sides of the support wall there are spring shock absorbers or rings from control of low material, in turn, the projectile is installed in the barrel bore in such a way that an air chamber is formed between it and the cartridge, and from the front end of the projectile to the barrel cut there is a section no longer than 1.4 projectile lengths. 2. Pulse spray barrel block on the tank chassis according to claim 1, characterized in that each barrel is made of a metal pipe with a groove of its channel to a caliber in the range from 198 to 210 mm, with an outer diameter of the pipe equal to 219 mm and pipe wall thicknesses equal to or 7.7 mm or 8.8 mm or 10.2 mm.

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