What are the fire fighting equipment?

The five most commonly used fire fighting equipment are.

1, fire alarm.

Fire alarm is one of the most important means to prevent fire. Its function is to detect a large amount of smoke produced by fire and give an alarm. The sensitivity of smoke alarm should be considered according to the geographical location and application environment, so as to achieve the desired effect of users.

2. Fire hydrant.

The fire hydrant was renamed as a fire hydrant, which is a specific fire control facility. Its main function is to control combustible materials, isolate combustion and eliminate fire sources. Indoor fire hydrant and outdoor fire extinguisher. Fire hydrant clothing usually consists of fire box+fire hose+water gun+buckle+bolt+clip, etc. Fire hydrants are mainly used for fire engines to take water from urban water supply network or outdoor fire water supply network to extinguish fire, or indirectly connect hoses and water guns to extinguish fire. Therefore, the indoor and outdoor fire hydrant system is also one of the key fire control facilities.

3. foam extinguisher.

Foam extinguisher's fire fighting principle is that when a fire breaks out, a large amount of carbon dioxide and foam can be ejected and attached to combustible materials, so as to isolate combustible materials from the air, thus achieving the purpose of fire fighting. Foam extinguisher is divided into: portable foam extinguisher, pushcart foam extinguisher and air foam extinguisher. Foam extinguisher should be stored in a damp, cool, ventilated and convenient place, and cannot be exposed to high temperature or sunlight to prevent carbonic acid from decomposing and failing. Anti-freezing measures in winter to prevent freezing. And should always wipe the dust and dredge the nozzle to keep it open.

4. Carbon dioxide fire extinguisher.

Carbon dioxide fire extinguishing agent is a kind of fire extinguisher with a history of 100 years. It is cheap, easy to obtain and prepare, and mainly relies on suffocation and local cooling to put out the fire. The density of carbon dioxide is lower, about 1.5 times that of air. At atmospheric pressure, liquid carbon dioxide will evaporate immediately. Usually, 1 kg of liquid carbon dioxide can produce about 0.5 cubic meters of gas. Therefore, when putting out a fire, carbon dioxide gas can exclude air and surround the surface of the combustible or distribute in a relatively closed space, reducing the oxygen concentration around the combustible or in the protective space, causing suffocation and extinguishing the fire. In addition, when carbon dioxide is ejected from the storage container, it will quickly evaporate from liquid into gas and absorb some heat from the surrounding to cool down.

5. Dry powder fire extinguisher.

Dry powder fire extinguisher is a kind of fire extinguisher, which can be divided into general dry powder according to the type of dry powder. Superfine dry powder fire extinguisher. Dry powder fire extinguisher is equipped with dry powder extinguishing agent such as ammonium phosphate, which is not easy to flow and wet. It is composed of inorganic salts and powdered dry powder additives, which can accurately put out the initial fire.