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Nan'an Wensheng Fire Fighting Equipment Co., Ltd.

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企业动态 >灭火器材的配备与使用 Position: Products > Company News > Equipment and use of fire extinguishing equipment

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Provision and use of fire extinguishing equipment
浏览量: 1 Time: 2019-04-28 17: 07Views : 1

Fire-fighting equipment, equipment and facilities are necessary weapons for fighting fires. Only those who are familiar with the technical performance of various fire-fighting equipment, equipment and facilities; scope of application (object), requirements for use and maintenance, and educate the staff to use fire-fighting equipment correctly and give full play to The role of fire-fighting equipment in the coming fire fights the fire in time. The following will introduce the basic knowledge of some commonly used fire extinguishing agents and equipment.

Extinguishing agent

The widely used fire extinguishing agents are: water, foam, carbon dioxide, dry powder, inert gas fire extinguishing agents, etc.

① water

Water is the most commonly used fire extinguishing agent, which is convenient to apply, rich in sources, and inexpensive. Therefore, it is widely used in fire fields.

Water cannot extinguish fires of the following substances and equipment;

Fires caused by alkali metals, such as carbonization, hydrogenation, and golden yellow; sulfuric acid, nitric acid, and hydrochloric acid should not be extinguished with strong water; lighter than water is insoluble in flammable liquids (except oil and heavy oil); molten molten iron and molten steel; When the high-voltage electrical installation is on fire without good grounding equipment or the current is not cut off;

② Foam fire extinguishing

Foam is a group of bubbles with a small rest volume and a surface surrounded by liquid, which only extinguishes fire caused by combustible liquids and flammable gases. The foams used in China include chemical foams and air mechanical foams (referred to as air foams).

The main principle of foam fire extinguishing is that foam is lighter than flammable and combustible liquids. It covers the fired liquid surface, blocks liquid vapor from entering the combustion zone, prevents air from contacting the fired surface, prevents heat from being transmitted to the liquid surface, and can absorb it. A certain amount of heat, which stops the combustion.

③Chemical foam extinguishing agent

Chemical foam is light, has a certain expansion ratio, strong anti-burning property, good durability, can cover the liquid surface of fire, and has a good covering and cooling effect.

④ Ordinary foam fire extinguishing agent

It has the function of covering, cooling and extinguishing fires, and can effectively extinguish flammable and combustible liquids, but it is not suitable to save alcohols, ketones, ethers and other water-soluble liquid and gaseous alkane.

⑤Carbon dioxide fire extinguishing agent

It is suitable for extinguishing fires of electrical equipment, precision instruments, books and archives, and fires of small oils, gases and some substances that cannot be extinguished with water. However, it cannot extinguish fire areas such as metal potassium, sodium, magnesium, aluminum and other hydrides, and it is not easy to extinguish some fires that can burn the original materials in an inert medium and some materials (such as cotton) are flame retardant.

⑥Dry powder fire extinguishing agent

Suitable for extinguishing flammable liquids, flammable gases and electrical fire areas, as well as some fires that are not suitable for extinguishing with water. However, care must be taken to cool the container or substance to avoid re-ignition.

(2) Fire extinguisher

Fire extinguisher is a kind of portable fire extinguishing equipment. There are many types of fire extinguishers, including: water fire extinguisher, foam fire extinguisher, carbon dioxide fire extinguisher, dry powder fire extinguisher, 1211 fire extinguisher, etc.

You should learn to use the fire extinguishers provided by your unit and department. Fire extinguishers must be inspected and renewed regularly to extinguish fires at the beginning of a fire.

Fire tactics

1. Parents and teachers should educate children to develop a good habit of not playing with fire. No unit shall organize minors to fight the fire.

2. Never throw cigarette butts and tinders.

3. Flammable and combustible materials should not be used for interior decoration.

4. Fire hydrants are related to public safety, and should not be damaged, occupied or buried.

5. Take care of fire fighting equipment and master the use of common fire fighting equipment.

6. Do not bring flammable and explosive items into public places and take public transportation.

7. When entering public places, pay attention to observe fire signs and remember evacuation directions.

8. In all cases, keep the evacuation routes clear.

9. Anyone who finds any behavior that endangers public fire safety can report it to the public security fire department or the police officer on duty.

10. Be particularly careful about fires in daily life. Do not place flammable or flammable items near the fire source.

l1. When you find a gas leak, close the valve quickly, open the doors and windows, and do not touch the electrical switches and open flames.

12. Electrical lines are worn out and aging should be repaired and replaced in a timely manner.

13. The circuit fuse (chip) is blown. Do not replace it with copper wire or iron wire.

14. Do not overload electricity.

15. The police call l19 when the fire is found, and the fire brigade does not charge for the fire.

16. Anyone who knows the conditions of the fire site should promptly inform the firefighters of the surrounding people and flammable and explosive materials in the fire field.

17. Evacuate quickly when a fire strikes. Don't be greedy for property.

18. When you must escape through thick smoke, you should try to cover your body with wet clothes, cover your nose and mouth, and close to the ground.

19. If you are on fire, you can roll on the spot or cover the fire extinguishers with heavy clothing.

20. When the fire seals the door and cannot escape, you can use wet bedding and clothing to block the door gap, splash water to cool down, and call for help.

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