Knapsack fire extinguisher, like other similar devices, has operating features. This device is one of the most convenient because it has shoulder straps. If necessary, the device will eliminate the source of ignition.
Application
In case of fire, it is necessary to act actively, and a backpack fire extinguisher will allow you to quickly deal with the task of eliminating the flame. Convenience is provided by the presence of shoulder straps or straps, which are located behind the firefighter. You can take the device with you on a camping trip.
The extinguishing agent in the device is water or a non-aggressive substance. The localization of the fire is carried out by extinguishing or by applying strips. This is accomplished using both water and chemically non-aggressive solutions.
Design
Knapsack fire extinguisher does not have a complex structure. The fluid container is in the shoulder bag. To make the device easy to carry, there are straps on the case. For each person, you can adjust these elements.
The device is heavy, so there are softening cushions on the belts. To prevent negative consequences from prolonged contact with the container, the wound has thermal insulation. Liquid is discharged by a manual hydraulic console - a pump. Although the weight of the device is large, it is still convenient to use, since the sediment is made of polypropylene.
Device operation
The backpack forest fire extinguisher has a hydraulic remote control that allows you to set 1 of the operating modes:
- compact stream of water;
- sprayed jet;
- foamy stream.
For the last mode, the kit has a special nozzle. In addition to functional equipment, there is a container for drinking water, since the device is used outdoors. Manufacturers of backpack fire extinguishers create goods with different materials. Some properties may also vary.
How to choose?
For a backpack fire extinguisher to work efficiently, you need to select a device with the appropriate characteristics. Thanks to its good performance, it will be possible to quickly extinguish the fire. The speed of the device depends on the number of liters. The device at 3 l / min copes with its functions in emergency situations.
Pay attention to the volume of the working tank. The higher this indicator, the better the fire will be put out. But since the device is used when it is behind, you do not need to choose a heavy device. It is enough to purchase a backpack fire extinguisher of 25 liters.
The length of the water column must be taken into account. With a vertical orientation, it is better to choose a device with an indicator of six meters, and with a horizontal one - 12 meters. Devices are estimated by the size of the working capacity. It is necessary to choose devices with parameters of 370x190x430 mm (width, depth, height). The kit should have a shoulder bag and a hydraulic pump.
Comparison
Localized starting fires allow backpack fire extinguishers. A photo of the device shows that it is very convenient to use. But each device may have limitations on its use. They are excellent in cases where it is necessary to eliminate grassroots fires, and there is no access to equipment.
Devices are used not only in fire services, but also in private, country houses. Foam extinguishers must not be used in cases where a fire has arisen due to a short circuit. Powder devices are used almost everywhere, but the quenching of alkali metals and other substances that burn in an oxygen-free environment is an exception.
How many backpack fire extinguishers are required for a fire department? This indicator is determined by a special formula. The amount of equipment that should be indoors is determined by legislative standards.
Of backpack fire extinguishers, the most popular is "RP 18 Ermak." The volume of the tank is 18 l, and the capacity is 2.25 l / min. The approximate price of the device is 3100 rubles.
Usage Tips
This device effectively extinguishes bottom fires. The fire extinguisher has many advantages:
- directional stream;
- free hands;
- You can turn on different modes.
Using a hand pump, water is supplied with the shutter moving back and forth. To quickly put out a fire, you need to use a compact and atomized jet in situations where you need it. For example, the length of the fluid flow in the first case is 8–9 m, and the sprayed stream is 3.5 m. Therefore, when localizing a fire, the possibility of approaching the source is determined. With a correct assessment of the situation and the use of an appropriate mode of volume, it will be enough to eliminate the source of ignition.
So, this device, although compact, has several advantages over other fire extinguishers. If there is a fire in the summer cottage, then do not carry buckets, since you can use a backpack fire extinguisher.
It is necessary to regularly check the performance of the device. In the event of a malfunction, the defect should be fixed, otherwise the device will not be able to perform its functions. The fire extinguisher must be in a designated place.
Water may not always be close to a fire, and the shoulder device is comfortable to use and can be used at any time. It is only necessary to control the storage conditions of the device, not to expose it to high temperature and other negative factors for it.