How to use a portable ABC dry chemical fire extinguisher

The method of using the hand-held dry chemical fire extinguisher is: 1 Lift the fire extinguisher to the appropriate position from the fire source 2 first turn the fire extinguisher upside down several times to loosen the dry powder in the cylinder, 3 then aim the nozzle at the most violent place of the flame, 4 pull out the safety pin, press down and press the dry powder fire extinguishing agent in the 5 cylinders will be sprayed out.

Pull out the pin, hold the sprinkler head in your left hand, grasp the root of the fire source, press the switch with the fire extinguisher in your right hand, and spray out the dry powder.

1: Carry a fire extinguisher in your right hand to the scene.

2: Remove the seal.

3: Unplug the safety pin.

4: Holding the nozzle in your left hand and the pressure handle in your right hand, standing upwind.

5: Press down the handle with your right hand about a meter away from the flames, and hold the nozzle with your left hand to strafe the root of the flames.

ABC dry chemical fire extinguisher is suitable for three types of fire extinguishing:

1. Solid fire extinguishing refers to the fire caused by the combustion of solid combustibles containing carbon, that is, wood, noodles, wool, hemp, paper, etc.

2. Liquid fire extinguishing, nail, B, C liquids, such as gasoline, kerosene, methanol, ethanol, acetone and other burning fires.

3. Gas fire extinguishing, such as fires caused by combustible gases such as coal gas, natural gas, methane, hydrogen, etc.

The principle of ABC dry chemical fire extinguisher:

The dry powder fire extinguisher is equipped with ammonium phosphate and other dry powder fire extinguishing agents, which have easy fluidity and dryness, and are composed of inorganic salts and crushing and drying additives, which can effectively extinguish the initial disaster.

How to use ABC dry chemical fire extinguisher:

1. First shake the fire extinguisher up and down more than three times and stand about 5 meters away from the fire point.

2. Unplug the safety pin, aim at the fire source, stand in the upwind position, and press the pressure handle of the fire extinguisher to extinguish the fire.

3. Gradually approach the fire point according to the way of flat shooting and swinging left and right, and completely extinguish the fire.

4. Finally, after the fire is extinguished, use cold water to extinguish the smoke to prevent re-ignition.

ABC dry powder fire extinguisher is suitable for the following three types of fire extinguishing: the first type is solid fire extinguishing, which refers to the fire caused by the combustion of solid combustibles containing carbon, that is, wood, flour, wool, hemp, paper, etc. The second category is liquid fire extinguishing, which is a fire that burns nails, B and C liquids, such as gasoline, kerosene, methanol, ethanol, acetone, etc.

The third category is gas fire extinguishing, such as fires caused by combustible gases such as coal gas, natural gas, methane, hydrogen, etc.

ABC dry powder fire extinguisher: ABC dry powder fire extinguisher is filled with ammonium phosphate dry powder fire extinguishing agent, which is composed of inorganic salt with fire extinguishing effect and a small amount of dry powder fire extinguishing agent that are dried, crushed and mixed into fine solid powder. ABC dry powder fire extinguishers can extinguish Class A, B, and C fires.

Among them, Class A fires refer to fires caused by the combustion of ordinary solid combustibles, such as wood, flour, wool, hemp, paper and grain, synthetic fibers, synthetic plastics, synthetic rubber, etc.;

Class B fire refers to the fire caused by the combustion of all flammable liquids, such as gasoline, kerosene, methanol, ethanol, acetone, etc.;

Class C fires are fires caused by gases, such as gas, natural gas, methane, hydrogen, and other combustible gases.

Dry chemical fire extinguishers can extinguish ABC fires. Category A fires refer to fires caused by solid substances such as wood, hay, coal, cotton, and paper, Category B fires refer to fires caused by liquids or meltable solid substances such as kerosene, diesel, methanol, ethanol, paraffin, plastics, etc., and Class C fires refer to fires caused by gases such as gas, natural gas, methane, ethane, and hydrogen.

When a class A fire occurs, fire extinguishers such as water type, foam, dry powder, and halide can be used to extinguish the fire.

When a Class B fire occurs, fire extinguishers such as dry powder, foam, halide alkyls, and carbon dioxide can be used to extinguish it, but it should be noted that chemical foam fire extinguishers are not used to extinguish water-soluble Class B fires.

In the event of a Class C fire, dry powder, halide alkanes, and carbon dioxide fire extinguishers can be used.

1. Class A refers to solid fire extinguishing. It refers to fires caused by the burning of solid combustibles containing carbon, i.e., paper, wood, hemp, flour, wool, etc.

2. Class B refers to liquid fire extinguishing. It refers to fires caused by the combustion of Class A, B, and C liquids, such as ethanol, gasoline, methanol, acetone, etc.

3. Class C refers to gas fire extinguishing. It refers to fires caused by the combustion of gaseous combustibles, such as hydrogen, coal gas, etc.

The portable dry powder fire extinguisher is turned on at a distance of about 5m from the combustible, and the specific method is: first tear off the small lead block, pull out the safety pin, and then lift the fire extinguisher after pressing down the pressure handle with one hand; Hold the nozzle with the other hand and spray the dry powder jet towards the combustion zone.

When operating the portable dry powder fire extinguisher, pay attention to keeping the fire extinguisher upright and spray the dry powder jet to the flame root of the burning front. When used outdoors, it is necessary to pay attention to the upwind direction of the spray, and gradually approach the burning zone as the range shortens to improve the fire extinguishing efficiency.

Specific process: 1: Hold the fire extinguisher in your right hand to the scene.

2: Remove the seal.

3: Unplug the safety pin.

4: Holding the nozzle in your left hand and the pressure handle in your right hand, standing upwind.

5: At a distance of about one meter from the flame, press down the key collapse handle with your right hand, and hold the nozzle with your left hand to strafe the root of the flame.

Dry powder fire extinguishing agent is a dry and easy-to-flow fine powder used for fire extinguishing, which 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. It is a fire extinguishing agent that has been widely used in fire fighting, and is mainly used in fire extinguishers. In addition to the special dry powder chemical fire extinguishing agent for fighting metal fires, dry powder fire extinguishing agent is generally divided into two categories: BC dry powder fire extinguishing agent and prepared ABC dry powder.

Dry powder fire extinguishing agent mainly extinguishes the fire through the physical and chemical action that occurs when the powder mist sprayed under the action of pressurized gas contacts and mixes with the flame.

Here's what we're talking aboutThe sanzhou of portable ABC dry powder fire extinguisher refers to the correct way to use

1.When using a portable dry chemical fire extinguisher, you should quickly rush to the fire with the handle of the portable fire extinguisher.

2.At a distance of about 5 meters from the ** point, put down the fire extinguisher. When used outdoors, it should occupy the upwind direction.

3.Before use, turn the fire extinguisher upside down several times to loosen the dry powder in the cylinder.

4.Pull out the safety pin first, hold the bottom of the bottle with one hand, and press down the handle firmly with the other hand, and the dry powder will be sprayed out of the nozzle.

5.When using a dry powder fire extinguisher to extinguish a liquid fire, it should be sprayed from the side of the flame, aimed at the root of the flame, and swept from near to far, left and right, and quickly advanced until the flame is completely extinguished.

6.When using a dry chemical fire extinguisher to extinguish a fire with a flammable liquid in the container, it should also be aimed at the root of the flame from the side of the flame and strafed left and right. When the flame is driven out of the container, move forward quickly and extinguish all embers.

When extinguishing the fire, care should be taken not to spray the nozzle directly at the liquid level, so as to prevent the impact of the dry powder airflow from splashing the oil and expanding the potential, resulting in difficulty in extinguishing the fire.

7.When using a dry powder fire extinguisher to extinguish a solid material fire, the fire extinguisher's mouth should be aimed at the most violent burning place, and the left and right should be swept left and right, and the dry powder fire extinguishing agent should be sprayed evenly on the surface of the burning material as far as possible until the fire is completely extinguished.

8.When using dry powder fire extinguishers, it should be noted that they should always be kept upright during the fire extinguishing process, and should not be used horizontally or upside down, otherwise they should not be sprayed with powder; At the same time, pay attention to the dry powder fire extinguisher to prevent re-ignition after extinguishing the fire, because the cooling effect of the dry powder fire extinguisher is very small, and it is easy to re-ignite after extinguishing the fire under the condition that there is a hot object at the ignition point.

Shake the fire extinguisher up and down before use.

2.Open the safety pin of the fire extinguisher.

3.5-7 meters away from the fire source, hold the pressure handle with one hand and hold the nozzle tightly with the other hand and aim it at the root of the flame.

4.Pinch the handle and the dry powder will be sprayed.

1. Due to the limited spraying distance and time of the fire extinguisher, the distance and angle should be selected as close to the fire source as possible when extinguishing the fire, and the direction and angle of fire extinguishing should be mastered;

2. The dry powder has almost no cooling effect, and it is necessary to prevent re-ignition;

3. After the dry powder is extinguished, there are often residues disturbed, so it is necessary to pay attention to prevent damage to the precision instrument;

4. He Peng should always check the air pressure of the cylinder of the dry powder fire extinguisher (car), and if the pressure drops, it should be replenished or replaced in time;

5. The dry powder must be kept dry frequently, and the sedan chair must be strictly protected from moisture and agglomeration. When using a portable (cart-type) dry powder fire extinguisher, it is necessary to turn it upside down several times to make the dry powder loose and easy to spray out in advance, so as to achieve the purpose of extinguishing the fire.