Understand portable fire extinguishers

2021-09-15


Portable fire extinguisher.
1、 Lift the fire extinguisher to the fire site at a distance of about 5m-6m from the fire. 2. Pull out the safety pin, hold the nozzle in front of the injection hose with one hand, aim at the combustible, hold the handle with the other hand, press the handle with force, and water can be sprayed out of the nozzle. 3. When extinguishing fire, with the shortening of the effective spraying distance, the user should gradually close to the combustion area, so that the water will always spray on the combustion until the fire is extinguished. Do not put the fire extinguisher upside down or upside down, otherwise it cannot be sprayed.
2、 Portable mechanical foam extinguisher.
1. Lift the fire extinguisher to the fire site, about 5m-6m away from the fire.
2. Pull out the safety pin, hold the nozzle in front of the nozzle with one hand, aim at the combustible, hold the handle with the other hand, press the handle with force, and foam can be ejected from the nozzle.
3、 When extinguishing fire, the mobile device burns and sprays from far to near; When burning in the container, foam shall be sprayed to the inner wall of the container; When extinguishing solids, the jet should be directed at the place with the most intense combustion.
Do not use the fire extinguisher horizontally or loosen the pressure handle.
Portable dry powder fire extinguisher.
1. The handle of the portable fire extinguisher should reach the fire site quickly and put down the fire extinguisher at a place about 5 meters away from the fire point. When using outdoors, pay attention to the windward direction. 2. Turn the fire extinguisher upside down several times before use to loosen the dry powder in the cylinder. 3. When using, pull out the safety pin first. If there is a nozzle, hold its nozzle with one hand (if there is no hose, it can support the bottom ring of the fire extinguisher), and lift the fire extinguisher with the other hand, press hard, and the dry powder will spray out from the nozzle.
When putting out the liquid, aim at the flame root and shoot it; In case of fire, the quasi-flame root should be spread from near to far and from left to right (not allowed, directly aim at the liquid level). When putting out the solid, the place with the most intense quasi-burning shall be sprayed and sprayed up and down, left and right.
Portable carbon dioxide fire extinguisher.
When in use, the fire extinguisher with hand or shoulder can quickly reach the fire scene, and put down the fire extinguisher at a place about 5m away from the combustor. 2. When putting out the fire, first pull out the safety pin and turn the spray elbow with one hand. If there is a spray hose, hold the wooden handle at the root of the spray hose, aim the spray hose at the fire source, lift the fire extinguisher with the other hand, and press down the handle. Liquid carbon dioxide is immediately ejected and rapidly evaporated under high pressure.
When extinguishing fire, spray continuously to prevent the ember from burning again, and do not use it upside down.


Key word:

Fire extinguishers