Understand the fire extinguisher and its applicable fire range

Fire extinguisher classification:

Taking the Anxi fire extinguisher as an example, it can be divided into carbon dioxide fire extinguisher, foam fire extinguisher, dry powder fire extinguisher and 1211 fire extinguisher according to fill components; it can be divided into portable fire extinguisher and cart fire extinguisher according to the type of use;

First, the general knowledge of fire extinguisher selection:

(1) Types of fire extinguishers at fire extinguishers' locations: According to the nature of fire extinguishers and the type of flammable substances in the fire extinguishers, it is possible to judge what kind of fires have occurred and then select the fire extinguisher; if an inappropriate fire extinguisher is selected, the fire is selected to stop the fire. Not only can it not destroy the fire, but it may also cause an adverse chemical reaction of the fire extinguishing agent to the combustion, and even an explosion accident. In addition, water-based fire extinguishers cannot be used for alkali metal (such as potassium, sodium, etc.) fires because of water and alkali metals. After the action, a large amount of hydrogen is generated, and after being mixed with air, it easily causes an explosion!

(2) Effectiveness of fire extinguishing;

(3) The degree of defacement of the protective article;

(4) Setpoint ambient temperature;

(5) The quality of the person using the fire extinguisher;

Second, the choice of fire extinguishers:

When selecting a fire extinguisher, the following requirements should be met:

1. Fire extinguishers such as water type, foam, dry powder, halogenated alkanes should be used to save Class A fires;

2. The use of dry powder, foam, haloalkane, carbon dioxide, etc. shall be used for fighting Class B fires, and chemical foam fire extinguishers shall not be used for fighting water-soluble B fires.

3, to save fires of Class C should use dry powder, haloalkane, carbon dioxide fire extinguisher;

4. Halon, carbon dioxide, and dry powder fire extinguishers should be used for fighting live equipment fires;

5. The use of dry powder and haloalkan fire extinguishers should be used for fighting fires of A, B, C, and electrified equipment;

6. Special dry powder fire extinguishers should be used to fight Class D fires.

Jingdong Zhilian Fire Department Store supplies various types of fire-fighting equipment and equipment, and welcomes major manufacturers, sellers and purchasers to settle in the consultation.

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