A fire extinguisher of ove: types and benefits

At all times the fires threatened the life of a man, and rescuers were looking for a tool to remove them. Fire extinguishers have become an indispensable device for firefighters in fighting the fire. The article consider this type of extinguisher as the air-emulsion, its advantages and disadvantages, as well as popular model.

Description and features of fire extinguisher

Emulsion extinguisher (CEE) - most effective, environmentally friendly and safe for human adaptation to extinguish fires. Is an improved modification of the air-foam fire extinguisher. The composition of the quenching of the mixture, addition of surface-active substances included additional antifreeze and various components, allowing to obtain the aqueous emulsion. This improvement has significantly expanded the range of application of the funds.

Re-extinguisher, unlike other varieties, is reusable (re-filling can be up to 40 times). Its main differences are the ability to extinguish liquids and electrical equipment, and the ability to function properly in the widest range of climatic conditions.

Also, experts note the device high values of the protected area: one re-extinguisher with a volume of 5-6 liters, this figure reaches 100 square meters.

Purpose and scope

Due to the presence of the emulsion of unique physical properties, this extinguisher is used to extinguish a variety of foci:

• Class “A” and “In”. A fire extinguisher is indispensable for elimination of fires resulting from the ignition of both solid and liquid combustible substances.
• Class “E”. A fire extinguisher is used for extinguishing electrical equipment under high voltage (up to 10 thousand).

The fire extinguisher, ove can be applied in a variety of weather conditions in temperature ranges from -40 to +50 degrees.

Used in residential and social facilities with a high number of people, and to protect public and private transport.

Construction and principle of operation

The design of the air-emulsion fire extinguisher (CEE) is generally similar in structure to fire extinguishers containing other active substances in the composition:

• Gas cylinder made of welded sheet steel, it is quite lightweight material, accordingly, the fire extinguisher has a fairly light weight;
• The type of the used source of excess pressure in re-extinguishers can be of two types: stored pressure (the pressure creates a layer of compressed gas that is pumped into the cylinder over the fire-extinguishing agent) or includes a separate canister connected to the starter mechanism;
• Stop-start device is activated, the emulsion of the siphon tube and then the rubber hose moving to the nebulizer, which is sprayed, mixed with air, for heat sources.

The Cylinder of fire extinguisher covered with powder enamel, which gives it a high resistance to mechanical damage and adverse weather influences. Inside the cylinder are processed with anti-corrosive composition.

The fire extinguisher, ove especially the composition of the quenching medium, which distinguishes it from the others. This emulsion is a water solution of surface-active substances. Such a mixture is well distributed and mixed with air, which increases the length of the jet (this allows quenching to be on a remote safe distance from the source) and high efficient impact on the center of burning. The cancellation occurs immediately in contact with the emulsion on the area of the fire. The termination of the burning process occurs due to the fact that the emulsion creates a surface film under which the burning surface is cooled. In addition, the resulting film effectively precipitate toxic products of combustion, prevents re-ignition.

Rules of operation

To the extinguisher has not been spoiled ahead of time, and effectively perform its functions must respect a set of rules:

• To bring the fire extinguisher in the work necessary to break the seal and pull the safety pin;
• To direct the spray to the area of the fire and push the operating lever; charge with the emulsion crashes due to excessive pressure created a layer of compressed gas.

When using a fire extinguisher is prohibited:

• Beat on it;
• Use the bottle, if visible mechanical damage;
• To send to people.

Ove must be sealed and have a checkmanufacturer.

The Device has a long service life, it needs no re-examination, and recharging of fire extinguisher, ove may not be made within 10 years (for the entire period of service allowed 40 recharges).

For monitoring the health of the device simply from time to time to carry out a visual inspection of indications of the scale of the barometer.

Advantages and disadvantages

The fire extinguisher, ove, due to the special composition of the emulsion, combines positive qualities of water and air-foam fire extinguishers, it does not have the disadvantages possessed by these devices. Its advantages are:

• High performance and versatile application compared to other types of fire extinguishers;
• Environment friendly: harmless to human health and does not damage the tangible property in the hearth extinguishing, does not harm the environment;
• Large surface area;
• When extinguishing does not generate dust, thus does not impair visibility;
• Increases the amount of carbon dioxide in case of fire in an enclosed space;
• You can start fighting immediately, without PPE, in the presence of people during evacuation;
• Ability to extinguish the objects under electrical voltage;
• Possibility to use at low temperature environment;
• Long lifespan.

The Main disadvantage is high cost. But it is justified by the effectiveness of the fire extinguisher. The device can replace several dozen Penn counterparts in the service process.

Manufacturers and models

Leaders in the popularity of the products are Russian companies ".", Bontel, "Samurai", NGO “Pulse”. These manufacturers offer a wide selection of models with different mass charge in the range of 2 to 50 kg.

The Small cylinders (2 or 4 kg) best suited for the car. Characteristics of fire extinguishers, ove:

• Working pressure – of 1.85 MPa;
• Temperature range from -40 to +50 °C;
• The duration of the feed streams – not less than 12 sec.;
• Fire extinguishing efficiency – 2A (class A), 55B (class B), up to 1000 V (class E).

The Cylinders 8, 10, 40, and 50 kg are more often installed in large rooms, warehouses, hangars, etc. Cylinders with a high charge mass of 10 kg and above are mobile, that is equipped with a trolley for ease of use. The most popular for home use models are the five - and esticalopram extinguishers.

Of imported models noteworthy device company MiniBombero (Spain), having very compact dimensions, with a charge volume of 250 ml.

Fire Extinguishers Kingsway Industries series TRI-MAX is distinguished by the presence of the storage case of the device. These models are light weight and easy to use.

Fire Extinguishers the British firm Angus Fire is also known around the world. They have a difference in weight and volume, but all devices perfectly cope with fighting the same materials.

We Can say that a fire extinguisher is an essential part of ensuring the security of any premises. The rules establish the mandatory presence of this device, as well as its timely inspection and recharge.