Briefly introduce the use of cart fire extinguisher

Cart type carbon dioxide fire extinguisher is generally operated by two people. When they are used, they push or pull the fire extinguisher together to the burning place and stop about 10 meters away from the burning object. After one person quickly removes the horn and expands the spraying hose, it is held. The handle at the root of the horn, the other person quickly swivels the handwheel counterclockwise and opens to the maximum position. The fire extinguishing method is the same as the hand-held method.

Principle: Let the temperature of the flammable material rapidly decrease and isolate it from the air.

Advantages: It will not cause any damage due to leaving any traces when extinguishing the fire, so it can be used to extinguish books, archives, valuable equipment and precision instruments.

Adapt to fire and use methods

How to use: When in use, generally two people operate, first quickly push and pull the fire extinguisher to the fire, stop at a distance of 10 meters from the fire point, spray hose by one person, hold the spray gun with both hands and aim at the burning place; the other is Turn the hand wheel counterclockwise first, raise the screw to the highest position, make the cap open, and then tilt the cylinder backwards, make the rod touch the ground, and rotate the valve handle by 90 degrees to spray the foam to extinguish the fire. If the valve is installed at the gun, the person responsible for operating the gun opens the valve.

Fire extinguishing methods and precautions are basically the same as those for portable chemical foam fire extinguishers. Because this kind of fire extinguisher has a long injection distance and a long continuous injection time, it can give full play to its advantages, and it can be used to fight the initial fire in a large area of ​​storage tanks or tankers.

When using a cart type fire extinguisher, place the rear part toward the ignition source (upwind direction should be placed outdoors), remove the gun first, unfold the powder tube (remember that there is no twisting phenomenon), and then lift the air intake lever to make the carbon dioxide enter The tank, when the gauge pressure rises to 0.7 megapascals to 1 megapascals, lowers the intake air pressure lever to stop the intake air. At this time, the switch is turned on and the dry powder is sprayed. The fire is thrown from near to far. If you are fighting an oil fire, do not let the air flow of dry powder directly hit the oil, so as not to splash oil surface to spread the fire.

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