How many kinds of fire extinguishers are there as mentioned Thank you

According to the type of fire extinguishing agent filled, simple fire extinguishers include 1211 fire extinguishers, also known as aerosol halide fire extinguishers; Simple dry chemical fire extinguisher, also known as portable dry chemical fire extinguisher; There are also simple air foam fire extinguishers, also known as portable air foam fire extinguishers. If you want to know more about it, you can consult Shanghai Haiyue safety engineering equipment****, thank you!

Dry chemical fire extinguishers, foam fire extinguishers, carbon dioxide fire extinguishers, oils, electrical appliances, and ordinary fires Self-employed Q user: Mr. Liu.

Foam fire extinguishers are divided into two types: anti-solvent fire extinguishers and water-soluble fire extinguishers. Thank you Self-employed Q user: Mr. Chung.

1.Water extinguisher: mainly extinguishing class A, such as: wood, bamboo, cotton fire, etc. 2Acid and alkali fire extinguishers.

Mainly save class A, such as wood, bamboo, etc.

3.Foam desolator.

One is mainly used for class A firefighting, and can also be used for class B fighting, such as gasoline, diesel, kerosene, vegetable oil, etc. 4CO2 fire extinguisher.

It is mainly used to extinguish the initial fire of flammable liquid and combustible gas5Dry powder fire extinguishers are mainly used to extinguish the initial disaster of combustible liquids and combustible liquids and combustible gases.

1. Portable foam fire extinguisher.

Foam fire extinguishers are suitable for extinguishing the initial disaster of oil and general substances. When using, hold the lifting ring of the fire extinguisher with your hand, and lift it to the fire scene smoothly and quickly, do not carry it horizontally or horizontally. When extinguishing the fire, hold the ring with one hand and the bottom edge of the barrel with the other hand, turn the fire extinguisher upside down, aim the nozzle at the fire source, and shake it vigorously a few times to extinguish the fire.

2. Portable carbon dioxide fire extinguisher.

Carbon dioxide fire extinguishers are suitable for extinguishing the initial disaster of precision instruments, electronic equipment and electrical appliances below 600 volts. Portable CO2 fire extinguishers can be used in two ways, namely handwheels and duckbills.

3. Portable dry powder fire extinguisher.

Dry powder fire extinguishers are suitable for extinguishing initial disasters such as oil, combustible gas, and electrical equipment. When using, first open the safety pin, hold the nozzle with one hand, aim at the fire source, and pull the pull ring with the other hand to extinguish the fire source.

4. Portable "1211" fire extinguisher.

The 1211 "fire extinguisher is suitable for extinguishing the initial disaster of valuables such as oil, instruments and cultural relics files. When using, first tear off the aluminum seal, pull out the safety safety pin, hold the bottom of the fire extinguisher with one hand, hold the pressure handle switch with the other hand, aim the nozzle at the fire source spray, release the pressure handle, and the spray will stop.

There are four common types of fire extinguishers:

1. Dry powder fire extinguisher.

As one of the most popular fire extinguishers on the market, dry powder fire extinguishers are suitable for extinguishing general fires and initial fires caused by oil and gas. Working principle: Dry powder is a kind of dry fine solid powder, using CO2 gas (or N2) gas as power, when the fire extinguisher is opened, the dry powder in the cylinder will be quickly sprayed out to extinguish the fire.

2. Foam fire extinguisher.

The foam fire extinguisher is designed with two containers to hold the AL2 and NaHCO solutions respectively, and the two solutions will not have a chemical reaction when they are not activated. When it is necessary to use it, quickly turn the fire extinguisher upside down, and the two solutions will fuse, and a large amount of CO2 gas will be generated to extinguish the fire.

3. Carbon dioxide fire extinguisher.

Principle: The internal filling is liquid CO2, when the pressure is pressed, the internal CO2 will quickly enter the bottle valve through the siphon and spray out to the nozzle, reduce the concentration of oxygen in the combustion zone, extinguish the flame when the CO2 reaches a sufficient concentration, and at the same time, because the liquid CO2 will be rapidly vaporized, the heat of the combustion will be absorbed in the short term, and the effect of cooling and extinguishing the fire will be achieved.

Fourth, water fire extinguisher.

The fire extinguishing agent is mainly composed of water, and an appropriate amount of additives are added, such as antifreeze, wetting agent, etc. Because water has the functions of low viscosity and high thermal stability at room temperature, when extinguishing a fire, water vapor can dilute the oxygen content of the combustible product, block the air from entering the combustion zone, reduce the oxygen concentration in the combustion zone, and play a role in suffocating and extinguishing the fire.

Three common types of fire extinguishers:

1. Dry powder fire extinguisher: The dry powder fire extinguisher is filled with dry powder fire extinguishing agent. Dry powder fire extinguishing agent is composed of inorganic salts with fire extinguishing effect and a small amount of additives that are dried, crushed and mixed into fine solid powder.

Compressed carbon dioxide is used to blow out a dry powder (mainly containing sodium bicarbonate) to extinguish the fire.

2. Foam fire extinguisher: There are two containers in the foam fire extinguisher, which contain two liquids, which are aluminum sulfate and sodium bicarbonate solutions, and the two solutions do not contact each other and do not have any chemical reaction.

When a foam fire extinguisher is needed, turn the fire extinguisher upside down and mix the two solutions together, which will produce a large amount of carbon dioxide gas.

3. Carbon dioxide fire extinguisher: the liquid carbon dioxide is stored in the bottle of the fire extinguisher, and when working, when the pressure handle of the bottle valve is pressed, the internal carbon dioxide fire extinguishing agent will be sprayed out from the siphon through the bottle valve to the nozzle cylinder, so that the concentration of oxygen in the combustion area will drop rapidly, and when the carbon dioxide reaches a sufficient concentration, the flame will be extinguished due to lack of oxygen, and at the same time, because the liquid carbon dioxide will be rapidly vaporized, it will absorb a large amount of heat in a short time, so it will play a certain cooling role in the combustibles, and also help to extinguish the fire.

There are many types of fire extinguishers, which can be divided into foam, dry powder, halides, carbon dioxide, clean water and other fire extinguishers according to the fire extinguishing agent filled. Among them, foam fire extinguishers are suitable for extinguishing general Class B fires, such as oil products, grease and other fires, and can also be applied to Class A fires.

Dry powder fire extinguishers are suitable for flammable, combustible liquids, gases and live equipment for initial disasters.

Carbon oxide fire extinguishers are mainly used to extinguish the initial disaster of valuable equipment, archives, instruments, electrical equipment below 600 volts and oil. Clean water fire extinguishers are suitable for extinguishing solid material fires.

In addition, water-based fire extinguishers can extinguish electrical fires up to 36kV. Water-based foam fire extinguishers are suitable for extinguishing flammable solid or liquid initial disasters, and are widely used in oil fields, oil depots, ships, factories, shops and other places.

1. The classification is as follows:

1. According to its moving mode, it can be divided into: portable type and cart type;

3. According to the fire extinguishing agent filled, it can be divided into: foam, dry powder, halide, carbon dioxide, water, etc.

Second, the choice of fire extinguisher:

1. Fire extinguishers such as water-type, foam, dry powder, and halide should be used to extinguish Class A fires;

2. Dry powder, foam, halide alkanes, carbon dioxide, etc. should be used to extinguish Class B fires, and chemical foam fire extinguishers should not be used to fight water-soluble Class B fires;

3. Dry powder, halide alkane and carbon dioxide fire extinguishers should be used to extinguish Class C fires;

4. Haloalkanes, carbon dioxide and dry powder fire extinguishers should be used to extinguish live equipment fires;

5. Dry powder and halide fire extinguishers should be used to extinguish fires of A, B, C, and live equipment;

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

Dry powder, suitable for solid matter fires.

Carbon dioxide; Suitable for electrical fires.

Anti-soluble foam extinguishes fires and is suitable for miscible substances with water.

Three types: foam fire extinguishers generally extinguish fires of wood and cotton.

Dry powder fire extinguishers generally extinguish oil and gas fires.

Liquid carbon dioxide fire extinguishers generally extinguish fires in books and archives, valuable equipment, precision instruments, etc.