Why aren t water based fire extinguishers suitable for gas fires?

Water-based water mist fire extinguishers.

The principle is sauce purple.

Water-based (water mist) fire extinguishers become water mist after spraying, instantly evaporating a large amount of heat from the fire site, rapidly reducing the temperature of the fire site, inhibiting thermal radiation and surfactants.

A layer of water film is quickly formed on the surface of combustibles, isolating oxygen, cooling and isolating, and at the same time participating in fire extinguishing, so as to achieve the purpose of rapid fire extinguishing.

The main thing is that water evaporates to lower the temperature and at the same time isolate oxygen to extinguish the fire, but the gas is lighter than water, and you can understand that the gas can easily float up and continue to interact with the oxygen in the air.

You can imagine that if the oil pan is on fire, the water cannot be extinguished, because the principle of water extinguishing the fire is that the water covers the fire body and isolates it from oxygen.

But oil is less dense than water. So no matter what, the oil floats above the water and continues to come into contact with oxygen and due to the diffusion of the water. The oil will also burn more widely.

Summary. Hello dear, water-based fire extinguisher is a common type of fire extinguisher, which mainly extinguishes the fire by spraying water mist or water flow, which can effectively reduce the temperature of the surface of the combustible object and absorb heat energy, so as to control and extinguish the flame. Because water-based fire extinguishers are non-toxic, non-polluting, and low-cost, they are widely used in many occasions, such as offices, shops, schools, hotels and other places, as well as automobiles, boats and other means of transportation.

Hello, water-based fire extinguishers are mainly suitable for Class A fires, i.e., combustible solid materials such as wood, paper, celery, cloth, etc. Since water-based fire extinguishers spray water, they are not suitable for fires such as electrical equipment, oil, and gas. When using water-based fire extinguishers, it is necessary to pay attention to the use method and distance of the fire extinguisher to avoid injury to personal safety.

Hello, water-based fire extinguisher is a common type of firearm, mainly by spraying water mist or water flow to extinguish the fire, which can effectively reduce the temperature of the surface of the combustible and absorb heat energy, so as to control and extinguish the flame. Because water-based fire extinguishers have the characteristics of non-toxic, non-polluting, and low cost, they are widely used in many occasions, such as offices, shops, schools, hotels and other places, as well as automobiles, boats and other means of transportation.

Water-based fire extinguishers cannot be used to extinguish liquid fires, which will cause oil splashing and accelerate the spread of fires; Foam fire extinguishers or dry chemical fire extinguishers should be used to extinguish fires.

Water-based fire extinguishers are suitable for extinguishing flammable solid or liquid initial disasters, but cannot extinguish fires of live equipment, and are widely used in oil fields, oil depots, and portable water-based fire extinguishers.

Please note that you can only extinguish the initial disaster, if you need a good effect, it is recommended to choose a foam type.

Yes, I've heard people say this before.

Water-based fire extinguishers are mainly suitable for extinguishing initial fires of flammable solids or non-water-soluble liquids.

Water-based fire extinguishers can be used to extinguish the initial disasters of solid and liquid, and are essential for fire fighting in the mining, processing and storage of wood and bamboo, weaving and masking objects, paper and oil. In addition, water-based fire extinguishers can also be used to extinguish fires with live equipment and fire self-rescue.

Types of water-based fire extinguishers:

At present, water-based fire extinguishers are mainly divided into three types, namely: water-based foam fire extinguishers, water-based water mist fire extinguishers and water-based clean water fire extinguishers.

The difference between the three fire extinguishers and the containment device:

1. Water-based foam fire extinguisher.

It can be used to extinguish solid or liquid fires, such as oil fields, factories and shops, and is an essential firefighting equipment to prevent fires. Water-based fire extinguishers have the advantages of easy operation, high fire extinguishing efficiency, long validity period and double fire extinguishing.

2. Water-based water mist fire extinguisher.

It was not until 08 that water-based water mist fire extinguishers became popular in China. It is not only green and environmentally friendly, but also will not cause pollution to the device and space, strong re-ignition resistance, fast fire extinguishing, which is incomparable to other fire extinguishers.

3. Water-based water fire extinguisher.

The fire extinguishing agent is mainly clean water, with low viscosity and high thermal stability at room temperature, which can be regarded as an ancient and widely used fire extinguisher, and is easy to obtain and store. <>

Water-based fire extinguishers are mainly suitable for extinguishing solid and liquid initial disasters.

Water-based fire extinguishers are essential for firefighting in the mining, processing, and storage of wood, bamboo, fabric, paper and oil. Water-based fire extinguishers are mainly divided into three types, namely: water-based foam fire extinguishers, water-based water mist fire extinguishers, and water-based clean water fire extinguishers.

Among them, water-based water mist fire extinguishers are not only environmentally friendly, but also suitable for extinguishing fires on live equipment, so they are very suitable for household use.

The fire extinguisher mechanism of water-based fire extinguishers is the principle of physical fire extinguishers. The fire extinguishing agent is mainly composed of hydrocarbon surfactant, fluorine cracking circular carbon surfactant, flame retardant and additives. The fire extinguishing agent has a penetrating effect on Class A fires, such as wood, cloth, etc., and the fire extinguishing agent can penetrate the inside of combustibles, even if the fire is large and cannot be completely extinguished.

Precautions for using water-based fire extinguishers

1. When using it early, you should first mention the fire extinguisher to the first place, put down the fire extinguisher, pull out the safety pin, hold the handle at the root of the horn barrel with one hand, and hold the pressure handle of the opening and closing valve with the other hand. For water-based fire extinguishers without a jet hose, the horn should be pulled up 70-90 degrees.

2. When using, wear gloves when using to avoid touching the spray cartridge and jet hose to prevent frostbite.

3. When using water-based fire extinguishers outdoors, you must pay attention to the wind direction, and you should choose to spray the fire at the upwind outlet. If you are using a water-based fire extinguisher in a small space, you should evacuate the crowd first, as excessive water-based fire extinguishers can suffocate to death.

Summary. Water-based foam fire extinguishers can be used to extinguish solid or liquid fires, such as oil fields, factories and shops, and cannot be used for live equipment fires.

Water-based fire extinguishers have the advantages of easy operation, high fire extinguishing efficiency, long validity period and double fire extinguishing, and are essential fire-fighting equipment to prevent a variety of fires.

Hello, water-based foam fire extinguishers cannot be used for electrical fires.

Water-based foam fire extinguishers can be used to extinguish solid or liquid fires, such as oil fields, factories and shops, and cannot be used for live equipment fires. Water-based fire extinguishers have the advantages of easy operation, high fire extinguishing efficiency, long validity period and double fire extinguishing, and are essential fire-fighting equipment to prevent a variety of fires.