Do I need to shake the fire extinguisher when I use it?

Dry chemical fire extinguishers.

Shake it before use, and when extinguishing the fire, you can quickly go to the fire with a portable or shoulder-carrying fire extinguisher, and put down the fire extinguisher about 5 meters away from the burning place. If you are outdoors, you should choose to spray in the upwind direction.

If the dry chemical fire extinguisher used is an external pressure storage type, the operator should hold the spray gun with one hand and lift the opening ring on the gas cylinder with the other hand. If the cylinder is opened on a handwheel, unscrew it in a counterclockwise direction to the highest position and lift the fire extinguisher.

When the dry powder is sprayed out, quickly aim at the root of the flame to strafe, if the dry powder fire extinguisher used is a built-in gas cylinder or a pressure storage type, the operator should first pull out the safety pin on the opening handle, and then hold the nozzle at the front end of the spray hose, and the other hand will press down the opening pressure handle, open the fire extinguisher to extinguish the fire.

1. There's no need to shake it, hehe.

2. The previous requirement was to shake it, because it is possible that the dry powder will agglomerate, but as long as the requirements for regular maintenance of the fire extinguisher are complied with, the dry powder will not agglomerate.

3. Carbon dioxide fire extinguishers, which were required to be reversed before use, are no longer used.

4. Other types of fire extinguishers, not to mention shaking.

Dry powder fire extinguishers do not need to be opened, just open the safety bolt and spray at the fire source, and the kind of foam fire extinguishing needs to be shaken to increase the pressure in the tank.

Fire extinguishers are generally divided into foam fire extinguishers, carbon dioxide fire extinguishers and dry powder fire extinguishers, etc., and most of the ones we use daily are dry powder fire extinguishers. When using, you should first shake it in your hand to loosen the dry powder in the can, and then pull out the safety pin and aim the nozzle at the root of the fire source, so as to control the fire in a timely and effective manner. He also emphasized that the use of dry powder fire extinguishers to extinguish the fire can only be effective at the beginning of the fire, if the fire is too large, the safety of personnel should be ensured first, and the fire brigade should be notified by dialing 119 in time to come to extinguish.

**Wuxi Education.

It's not Sprite to shake it dry.

Dry powder fire extinguisher should be shaken before use, when extinguishing the fire, you can quickly go to the fire scene with a portable or shoulder-carried fire extinguisher, and put down the fire extinguisher at a distance of about 5 meters from the burning place. If you are outdoors, you should choose to spray in the upwind direction.

If the dry powder fire extinguisher used is a plug-in pressure storage type, the operator should hold the spray gun with one hand and lift the opening ring on the gas cylinder with the other hand. If the opening of the gas cylinder is a handwheel, unscrew it in a counterclockwise direction and screw it to the highest position, and then lift the fire extinguisher.

When the dry powder is sprayed out, quickly aim at the root of the flame to strafe, if the dry powder fire extinguisher used is a built-in gas cylinder or a pressure storage type, the operator should first pull out the safety pin on the opening handle, and then hold the nozzle at the front end of the spray hose, and the other hand will press down the opening pressure handle, open the fire extinguisher to extinguish the fire.

foam fire extinguishers, dry ice fire extinguishers, dry powder fire extinguishers; The principle is slightly different.

The foam fire extinguisher uses Al2(SO4)3 solution and NaHCO3 solution, which are placed separately, and they are mixed when used, and double hydrolysis occurs to release CO2 gas; The liquid has a cooling effect, and the CO2 gas is denser than air, so it can adhere to the surface of the reducing agent, so as to isolate it from the air and extinguish the fire. This should be the kind of medicine shaking fire extinguisher you were talking about. It's all in chemistry textbooks in the third year of junior high school.

Dry ice is a carbon dioxide solid, which absorbs a lot of heat during gasification and plays a cooling role, and the carbon dioxide gas produced plays a role in isolating the air.

The raw material of the dry powder fire extinguisher is powdered NaHCO3, which is sprayed out under the drive of high-pressure gas when used, and NaHCO3 is decomposed by heat to absorb heat and cool down, and at the same time produces carbon dioxide to isolate the air.

According to a friend who specializes in firefighting, it seems that it is to place the dry powder lumps that have been left untouched for a long time.

Mix well, the reaction is more thorough, and the effect is more.

Hehe, I really haven't heard of it.