RU217637U9 - DEVICE FOR AUTOMATIC FIRE EXTINGUISHING IN VEHICLE ENGINE COMPARTMENT - Google Patents

Abstract

The utility model relates to fire fighting equipment, namely to automatic fire extinguishing systems, and can be used for fire protection of engine compartments of vehicles, other systems and units, such as a car, tractor, etc. The technical objective of the proposed utility model is to increase the reliability of the device for automatic fire extinguishing in the engine compartment of the vehicle. This technical result is achieved by the fact that, unlike the closest analogue, the device for automatic fire extinguishing in the engine compartment of a vehicle contains a receiver with a pressure reducing valve associated with a spray device, two or more pyro-charging capsules with moderators that allow the second, third, etc. d. pyro-charging capsule at a given point in time, maintaining a constant gas flow for a certain period of time. In the aggregate of features, the proposed device increases the reliability and efficiency for automatic fire extinguishing in the engine compartment of the vehicle. 1 ill.

Description

The utility model relates to fire fighting equipment, namely to automatic fire extinguishing systems, and can be used for fire protection of engine compartments of vehicles, other systems and units, such as a car, tractor, etc.

A fire extinguishing device for the engine compartment of a vehicle is known (PATENT RU 167997, class IPC A62C 3/07, publ. 01/16/2017), containing a sealed container with a fire extinguishing agent, a solenoid valve, a controller, a means of delivery and spraying a fire extinguishing agent, a stationary switch. However, this device has a significant drawback - the start of a fire must be recorded by the driver, which leads to an untimely start of extinguishing.

A device for automatic local fire protection and a method for destroying the shell of a capsule with nanopowder are known (PATENT RU 2633955, class IPC A62C 3/07, publ. 10/19/2017). The device for automatic local fire protection of the car is made in the form of a capsule, which is fixed in the shell. When the capsule shell with the nanopowder is destroyed, the fire-extinguishing powder is released and the fire is subsequently extinguished. The disadvantage is the complexity of the design, the difficulty of its installation, as well as the high cost of manufacturing the device.

A known device for extinguishing a fire for the engine compartment of a vehicle (USA PATENT 4248309, class IPC A62C 3/07 (20060101); A62C 035/12, publ. 03.023.1981), in which the mentioned vehicle has an engine, a cooling system with a cooling pressurized fluid, conduits connected to the cooling system, atomizer with a spray nozzle, non-return valve. The device has a significant drawback - it only works if the coolant used as an extinguisher is under pressure, that is, the engine must be started.

A fire extinguishing installation is known (PATENT RU 2031672, class IPC A62C 27/00, publ. 03/27/1995), which contains a container with fire extinguishing (cooling) liquid, a siphon tube, an electrically controlled distribution valve, sprinklers, as well as a check valve, an electrically controlled starting valve , a reduction gear and a cylinder of compressed air or nitrogen, a cooling system pump and an air-cooled radiator. As a fire extinguishing medium, "Tosol A-40" or "Tosol A-65" is used. The disadvantage of this technical solution is the low reliability and efficiency of extinguishing a car fire due to the use of "Tosol A-40" or "Tosol A-65" as a fire extinguishing agent, tk. they are capable of igniting at high temperatures, as well as the need to equip the car with an additional cylinder of compressed gas.

The closest in technical essence and functional purpose is a vehicle fire extinguishing device (PATENT RU 189180, class IPC A62C 3/07, published on May 15, 2019), which contains an engine cooling system, a starting valve, sprinklers made in the form of a pneumatic sprayer, capsule, solenoid valve, storage tanks for fire retardants and foam concentrate, automatic fuse, autonomous detector, smoke and flame detectors. The disadvantage of this device is the short time of operation of the atomizer, determined by the time of gas release from the combustion of the pyro-charge, which may not be enough to localize and eliminate the source of ignition.

The technical objective of the proposed utility model is to increase the reliability of fire extinguishing in the engine compartment of the vehicle.

This technical result is achieved by the fact that, unlike the closest analogue, the device for automatic fire extinguishing in the engine compartment of a vehicle contains a receiver with a pressure reducing valve associated with a spray device, two or more pyro-charging capsules with moderators that allow the second, third, etc. d. pyro-charging capsule at a given point in time, maintaining a constant gas flow for a certain period of time.

Figure 1 shows a schematic representation of a device with hydraulic and electrical connections.

The proposed device contains at least one pneumatic sprayer 1 connected through a pressure reducing valve 13 with the receiver 12 and pyro-charge capsules 2 installed on it with moderators, hydraulically connected through the solenoid valve 3 with the engine cooling system 4 and containers for storing fire retardants 5 and foam concentrate 6, and the pyro-charging capsules 2 are electrically connected to the automatic fuse 7, autonomous detector 8, smoke and flame sensors 9, electromagnetic valve 3, vehicle cooling system reducer 11 and the main electrical circuit of the vehicle 10.

The device works as follows.

As a result of the reaction of the smoke or flame sensors 9, which are triggered by an emerging fire, an impulse is sent to the autonomous detector 8, the automatic fuse 7, the pyro-charge capsules 2 and the solenoid valve 3, while the autonomous detector 8 plays an audible signal that notifies the driver and passengers of the fire. threat to their safety, the automatic fuse 7 de-energizes the electrical circuits of the car, the electromagnetic valve 3 opens, the gearbox of the vehicle cooling system 11 opens and the first of the pyro-charging capsules 2 is activated. which, through the pressure reducing valve 13, it enters the pneumatic sprayer 1 with its specified amount, and then leaves the pneumatic sprayer through the annular channel, a low pressure zone is created in the gas flow and simultaneous ejection of the coolant, flame retardants and foaming agent occurs through the hydraulic channels, the gas is mixed and liquids, and the created mixture is sprayed in the form of a torch of foam aerosol onto the fire, while the retarder ensures the alternate operation of the second, third, etc. pyro-charging capsules, which allows you to maintain a constant gas flow from the receiver 13 to the pneumatic atomizer 1 for a certain period of time.

In the aggregate of features, the proposed device increases the reliability and efficiency for automatic fire extinguishing in the engine compartment of the vehicle.

Claims (1)

A device for automatically extinguishing a fire in the engine compartment of a vehicle, including a pneumatic sprayer hydraulically connected through a solenoid valve to the engine cooling system and containers for storing fire retardants and a foam concentrate and a pyrotechnic charge electrically connected to an automatic fuse, an autonomous detector, a smoke and flame sensor, characterized one that is equipped with a receiver connected through a pressure reducing valve with a pneumatic atomizer, and is made according to a multi-stage scheme, including several pyro-charging capsules with moderators installed on the receiver.

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