How to distinguish the types of fire extinguishers, there are several types of fire extinguishers

There are three ways to classify fire extinguishers, that is, according to the type of fire extinguishing agent charged; Divided by the total weight of the fire extinguisher and the way it moves; It is divided according to the pressurization method of the fire extinguisher.

It is divided by the type of fire extinguishing agent filled.

This classification method is completely divided by the type of fire extinguishing agent filled in the fire extinguisher.

Clean water fire extinguisher: This type of fire extinguisher is filled with clean water. Some add an appropriate amount of antifreeze to lower the freezing point of the water. Some add appropriate amounts of wetting agents, flame retardants, thickeners, etc., to enhance fire extinguishing performance.

Acid and alkali fire extinguishers: The fire extinguishing agent filled in this type of fire extinguisher is an aqueous solution of industrial sulfuric acid and sodium bicarbonate.

Chemical foam fire extinguisher: The fire extinguishing agent filled in this type of fire extinguisher is aqueous solution of aluminum sulfate and sodium bicarbonate, and then an appropriate amount of protein foam liquid is added. If a small amount of fluorine surfactant is added, the fluidity of the foam can be enhanced and the fire extinguishing ability can be improved, so it is called a high-efficiency chemical foam fire extinguisher.

Air foam fire extinguishers: These fire extinguishers are filled with a mixture of air foam liquid and water. The foaming of air foam is generated by mixing the air foam mixture with air with the help of mechanical stirring, which is also called air mechanical foam.

There are many kinds of air foam fire extinguishing agents, such as protein foam, fluoroprotein foam, light water foam (also known as water film-forming foam), anti-solvent foam, polymer foam, etc. Because there are many varieties of air foam fire extinguishing agents, air foam fire extinguishers are distinguished according to the name of the filled air foam fire extinguishing agent, which is called protein foam fire extinguisher, light water foam fire extinguisher, anti-solvent foam fire extinguisher, etc.

Carbon dioxide fire extinguishers: These fire extinguishers are filled with liquefied carbon dioxide gas.

Dry chemical fire extinguisher: The fire extinguishing agent filled into this type of fire extinguisher is dry powder. There are many varieties of dry powder fire extinguishing agents, so fire extinguishers are called sodium bicarbonate dry powder fire extinguishers and ammonium phosphate dry powder fire extinguishers according to the names of different dry powder fire extinguishing agents filled inside.

Amino dry powder fire extinguisher. Because sodium bicarbonate dry powder is only suitable for extinguishing fires, it is also called dry powder fire extinguisher. Ammonium phosphate dry powder can be used for fires, so it is also called dry powder fire extinguisher.

Alkyl halide fire extinguisher: The fire extinguishing agent filled in this type of fire extinguisher is the alkyl halide fire extinguishing agent. There are many varieties of this type of fire extinguishing agent, and China has only developed two kinds, one is difluorochloro-bromomethane, referred to as "fire extinguisher, fire extinguisher."

There are two types of fire extinguishers.

According to its mode of movement, it can be divided into: portable type and cart type; According to the power of driving the fire extinguishing agent, it can be divided into: gas cylinder type, pressure storage type, chemical reaction type; According to the fire extinguishing agent filled, it can be divided into: foam, dry powder, halide alkane, carbon dioxide, clean water, etc.

The types of fire extinguishers are:

1. Divide foam, dry powder, carbon dioxide and clean water, halogenated fire extinguisher, etc.

2. Carbon dioxide fire extinguishers are more suitable for extinguishing flammable liquids and gases, and Class A fires are selected with clean water, foam, dry powder and haloalkanes.

3. Class B fires use fire extinguishers such as dry powder, foam, and carbon dioxide.

4. Class C fire extinguishers use dry powder, haloalkanes and carbon dioxide.

Fire extinguisher is a portable fire extinguishing tool and a common fire fighting product. It is usually stored in a public place or a place where a fire may occur. Different types of fire extinguishers contain different fire extinguishing ingredients and different styles.

There are different types of fire extinguishers, such as portable and trolley, and there are different types of fire extinguishers, and fire extinguishers contain foam, dry powder, and haloalkanes.

The extinguishing agent of the water extinguisher is clear water, which reaches effective viscosity at room temperature and water temperature, with high thermal stability, high density and large surface expansion force. It is a relatively large area of the ancient area, and natural fire extinguishing agents are usually easy to obtain and store.

There are three types of fire extinguishers, which are dry powder fire extinguishers, foam fire extinguishers, and carbon dioxide fire extinguishers. Dry chemical fire extinguisher: Filled with dry chemical extinguishing agent, this is a dry and easy-to-flow fine powder, which is used to blow out dry powder through compressed carbon dioxide to extinguish fires.

Foam fire extinguisher: When in use, it needs to be sprayed upside down, which will directly cover the fire point and extinguish the fire. CO2 fire extinguisher:

When extinguishing a fire, you need to flip the switch, and carbon dioxide will be sprayed out in the form of an air stream, so that it adheres to the surface of the combustible, isolates the air, and extinguishes the flame. <

There are three types of fire extinguishers, which are dry powder fire extinguishers, foam fire extinguishers, and carbon dioxide fire extinguishers.

1. Dry powder fire extinguisher: filled with dry powder fire extinguishing agent, which is a dry and easy-to-flow fine powder, which is blown out by compressed carbon dioxide to extinguish the fire when used.

2. Foam fire extinguisher: When in use, it needs to be sprayed upside down, which will directly cover the fire point and extinguish the fire.

3. Carbon dioxide fire extinguisher: When extinguishing the fire, you need to flip the switch, and the carbon dioxide will be sprayed out in the form of airflow, so as to attach to the surface of the combustible, isolate the air, and extinguish the flame.

Liquid fires are classified as Class B fires.

Class B fire places should use foam fire extinguishers 1653 devices, special sodium bicarbonate dry powder fire extinguishers, ammonium phosphate dry powder fire extinguishers, carbon dioxide fire extinguishers, water-type fire extinguishers or halide fire extinguishers for Class B Layin fires; The class B fire wheel shirt hall disaster site with polar solvent should choose an anti-soluble collapse fire extinguisher to extinguish class B fire.

At the same time, it is necessary to pay attention to the physical properties of the burning liquid, if the density is heavier than water, the water-type fire extinguisher is OK, if it is lighter than water, the water-type is not very suitable.

Extended information: Fire extinguisher system specification content inspection content.

1. Fire extinguishers should be avoided in transportation and storage, such as upside down, rain, exposure, strong radiation and contact with corrosive substances.

2. The storage environment temperature of the fire extinguisher should be in the range of -10 45.

3. The place where the fire extinguisher is placed should be kept dry and ventilated to prevent the cylinder from being corroded by moisture. Sunlight exposure and strong radiant heat should be avoided so as not to affect the normal use of the fire extinguisher.

4. The fire extinguisher shall be inspected regularly according to the requirements and inspection cycle specified by the manufacturer.

According to the classification of fire extinguishing agents, it can be divided into dry powder fire extinguishers, clean water fire extinguishers, foam fire extinguishers, carbon dioxide gas fire extinguishers and so on.

There are 5 types of fire extinguishers, namely simple fire extinguishers, clean water fire extinguishers, carbon dioxide fire extinguishers, foam fire extinguishers, and dry powder fire extinguishers.

1. Simple fire extinguisher: suitable for home use. It is a portable fire extinguisher that supports single-use small fire extinguishers.

2. Clean water fire extinguisher: mainly used to extinguish fires caused by solid substances. It is an ancient and widely used natural fire extinguishing agent, which mainly relies on cooling and asphyxia to extinguish fires.

3. Carbon dioxide fire extinguisher: mainly used to extinguish fires caused by valuable equipment, archives, instruments, electrical equipment below 600 volts and oil.

4. Foam fire extinguisher: suitable for extinguishing fires of water-soluble flammable and combustible liquids, such as fires caused by the combustion of alcohol, ether, ketone and other solvents.

5. Dry powder fire extinguisher: suitable for extinguishing the initial disaster of the oil tank, which can quickly control the development of the flame and play a role in quickly extinguishing the fire.

Water-based fire extinguishers are used for the initial disaster of oil, flammable solids or insoluble liquids. It is characterized by high fire extinguishing efficiency, anti-re-ignition, safety and environmental protection. And in the event of a fire, the water-based fire extinguisher of the water mist type can be sprayed directly on the body, and due to the flame retardant and thermal insulation effect of its effective substance, it can play a certain degree of protection against the human body and reduce the damage of flame burning.

It is suitable for extinguishing Class A, B and F fires.

Carbon dioxide fire extinguishers are used to extinguish the initial disasters of books, archives, valuable equipment, precision instruments, electrical equipment below 6 volts and training oil. It has excellent properties such as good fluidity, high ejection rate, non-corrosive container and not easy to deteriorate. Wear gloves when using to avoid touching the spray canister and jet hose to prevent frostbite.

It is suitable for extinguishing Class B, C and E fires.

There are many types of fire extinguishers on the market, and the use, scope of use, and fire extinguishing occasions of each fire extinguisher are different, but many people don't know much about the types of fire extinguishers, so how many types of fire extinguishers are there? Let's take a closer look.

1. If the fire extinguisher is classified according to the fire extinguishing agent filled inside, it can generally be divided into: carbon dioxide fire extinguisher, foam fire extinguisher, clean water fire extinguisher, halide fire extinguisher, dry powder fire extinguisher, etc. If fire extinguishers are classified according to the way they move, they can generally be divided into:

Portable fire extinguishers, cart fire extinguishers.

2. Although the main purpose of fire extinguishers is to extinguish fires, the types of fire extinguishers are different, and the scope of use, fire extinguishing methods, and fire extinguishing occasions are also different. At present, the fire extinguishers more commonly used than spring potatoes mainly include: carbon dioxide fire extinguishers, foam fire extinguishers, and dry chopping powder fire extinguishers.

3. Carbon dioxide fire extinguishers are mainly used to extinguish fires caused by flammable liquids and gases, especially when equipped with precision instruments or valuable equipment, carbon dioxide fire extinguishers are required to extinguish fires, so as to effectively avoid damage to electrical appliances and equipment. However, it cannot be used to extinguish fires caused by substances such as potassium, sodium, and aluminum.

4. Foam fire extinguishers are mainly used to extinguish liquid fires caused by oil products, greases, etc., but cannot be used to extinguish fires caused by alcohol, esters, ethers, ketones and other substances, nor can they be used to extinguish fires caused by live equipment. If it is a hand-pushed foam fire extinguisher, the spray distance of the fire extinguisher will generally be farther than that of the portable foam fire extinguisher, and it can generally be sprayed continuously in Changchang, and the spraying time is relatively long, so it is often used for fires caused by storage tanks or tank trucks.

5. Dry powder fire extinguishers are mainly used to extinguish fires caused by petroleum products, paints, organic solvents, etc., or to extinguish liquid, gas, electrical fires, and some can even be used to extinguish solid fires. If it is a cart-type dry chemical fire extinguisher, the spray distance of the fire extinguisher will be farther than that of a portable dry chemical fire extinguisher.

The above is a detailed introduction to the types of fire extinguishers, I hope it can help you understand fire extinguishers better. In order to ensure that the fire extinguisher can be used to extinguish the fire at any time, it is necessary to carry out regular inspection and maintenance of the fire extinguisher in daily life to avoid problems with the fire extinguisher.