Proper use of fire extinguishers, correct use of fire extinguishers

The correct use of fire extinguishers is divided into the following five steps:In the first step, drag the pressure handle with your right hand and the bottom of the fire extinguisher with your left hand, and gently remove the fire extinguisher and bring it to the scene.

The second step is to remove the lead seal from the fire extinguisher.

The third step is to unplug the safety pin.

In the fourth step, hold the nozzle in your left hand and the pressure handle in your right hand.

In the fifth step, at a distance of two meters from the flame, the right hand presses down the pressure handle, and the left hand holds the nozzle and swings it left and right to spray the entire combustion zone.

However, the use of foam fire extinguishers needs to be turned upside down in a vertical state before use, and then shaken up and down a few times, and then release the nozzle, and remember to stand eight meters away from the fire source to spray.

The most common thing in our lives is the dry powder fire extinguisher, so when using the fire extinguisher, at least, the fire extinguisher should be shaken evenly. Then, the second step is to unplug the safety bolt on the fire extinguisher, if you don't pull out the safety hydrant, the fire extinguisher will not work. We grasp the sprinkler pipe of the fire extinguisher with our left hand, and then hold the switch of the fire extinguisher with our right hand, which is the most correct posture to use the fire extinguisher.

In the last step, we aim the spray pipe of the fire extinguisher at the root of the fire source, which is the most effective way to extinguish the fire.

The correct way to use the fire extinguisher.

The fire extinguisher is one of the emergency equipment for fire extinguishing, and the correct use of the fire extinguisher can effectively extinguish the initial fire and avoid the expansion of the fire. Here's how to use a fire extinguisher correctly:

1.Judge the fire source: First of all, it is necessary to determine the fire source and ensure that the fire source is not blocked by obstacles, so as to avoid that the fire extinguishing agent sprayed by the fire extinguisher cannot be directly sprayed to the fire source.

2.Pull open the safety pin: The safety pin of the fire extinguisher is an important protective device to prevent misoperation, and the safety pin must be pulled open before use.

3.Aim at the fire source: Point the fire extinguisher at the fire source, about a meter away from the fire source, and be careful not to stand too close to avoid being burned by the flames.

4.Spraying fire extinguishing agent: Hold the nozzle of the fire extinguisher, press the pressure handle hard, and spray the fire extinguishing agent, paying attention to the spraying direction to be perpendicular to the fire source, and the spraying range should cover the entire fire source.

5.Extinguishing the fire source: After spraying the fire extinguishing agent, spray the fire extinguishing agent with the fire extinguisher sprinkler to extinguish the fire source until the open flame is completely extinguished.

6.Pay attention to safety: After extinguishing the fire, pay attention to check whether the fire extinguisher has been used up, and if there is a margin, you should continue to observe whether it will ignite again. At the same time, pay attention to whether there is a fire source around to ensure safety. <>

Scope of application:The principle of fire extinguisher is suitable for fighting general Class B fires, such as oil products, grease and other fires, and can also be applied to Class A fires, but cannot extinguish fires of water-soluble flammable and flammable liquids in Class B fires, such as alcohol, esters, ethers, ketones and other substance fires; It is also not possible to extinguish live equipment and Class C and D fires.

How to use: You can carry the lifting ring on the upper part of the cylinder and quietly rush to the fire. At this time, care should be taken not to tilt the fire extinguisher too much, let alone hold it horizontally or upside down, so as not to mix the two agents and spray out in advance.

When about 10 meters away from the ignition point, the cylinder can be turned upside down, one hand holds the lifting ring, and the other hand holds the bottom ring of the cylinder, and the jet is aimed at the combustible.

When extinguishing a combustible liquid fire, if it has been burned in a flowing form, the foam is sprayed from far and near so that the foam is completely covered on the combustion liquid surface; If it burns in the container, the foam should be shot at the inner wall of the container, so that the foam flows along the inner wall and gradually covers the ignition liquid level. Do not spray directly at the liquid surface, so as not to wash the burning liquid away or out of the container due to the impact of the jet, and expand the combustion range. When extinguishing a solid material fire, the jet should be directed at the place where the burning is most intense.

When extinguishing a fire, as the effective spray distance is shortened, the user should gradually approach the burning area and always spray foam on the burning material until it is extinguished. When in use, the fire extinguisher should always be kept upside down, otherwise the spray will be interrupted.

Foam fire extinguishers should be stored in a dry, cool, ventilated and convenient place, not close to high temperature or places that may be exposed to the sun to prevent carbonic acid decomposition and failure; In winter, anti-freezing measures should be taken to prevent freezing; And the dust should be wiped frequently, and the nozzle should be dredged to keep it unobstructed.

A fire extinguisher is a portable fire extinguishing tool in which chemicals are placed to extinguish a fireSo how to use a fire extinguisher, I believe you are very interested in this issue, the following is an introduction to you, I hope it can help you. By the way, I'll expand on it for youDifferent fire extinguishers for different fire situationsAnd there isFire extinguishers commonly used in laboratories

Method Steps:

Mention

First we take the handle on the top of the fire extinguisher and put the fire extinguisherBring it up

2.Unplugging

When the safety bolt on the handle of the fire extinguisher is removed, it is a small iron ringUnplug

3.Aim

You need to keep a certain distance from the ** point, and this safe distance is about 5 meters. We need to use the fire extinguisher upwind, because if it is a dry powder fire extinguisher, dust and smoke will affect us. Hold the head of the fire extinguisher in one hand and hold the sprinkler head of the fire extinguisher with the other hand on the bottom of the fire extinguisherAim for the place of **

4.Press

StrainPress the fire extinguisher at the place of cross press, aim at the fire source and press until the fire is extinguished.