2. Find out what state the cylinder is burning (whether it is standing or lying, whether the flame is up or down or sideways);

3. Find out if the cylinder angle valve is in good condition;

4. Find out the time when the cylinder has burned or the time when the cylinder is exposed to flame;

5, to find out whether the cylinder has signs of explosion (an important one, it is easy to cause rescue accidents).

★ Under the direct action of the flame, the cylinder will continue to burn for about three minutes, which is an explosion hazard.

If there is one of the following signs before the explosion of the cylinder, it will explode soon: one is the deformation of the cylinder cone expansion drum; the other is that the flame color is white and glare, the sound is thinner, and the sound is “squeaky”, so lasting 5~10 In about seconds, the sound and flame suddenly disappeared and exploded.

The second step is to save the fire in the general location of petroleum liquefied gas cylinders:

1. When the cylinder standing on the ground is burning, check whether the angle valve is in good condition. If the angle valve is intact, the valve should be closed first, and the flame will be extinguished by itself. If the fire is too strong and the valve cannot be closed first, the flowering water flow or dry powder, halogenated alkane, carbon dioxide and other fire extinguishing agents can be used to extinguish the fire, and then the valve is shut off. The cylinder body should be cooled before extinguishing the fire.

2. If the cylinder angle valve is out of action, do not rush to save the fire. The cylinder bottle should be cooled continuously. After the plugging is prepared, the fire can be extinguished. If you are not prepared for plugging, you can only continue to cool with a water gun until the gas is burned out.

3, the cylinder is poured on the ground, such as the angle valve outlet pipe burning towards the ground, this cylinder has an explosion hazard, firefighters should not rush to approach the cylinder, should first fall down, long-range water cooling, or use the bunker to shoot water to prevent cylinder explosion injury people. When attacking, the body should face the middle of the bottle, avoiding the two ends of the bottle to prevent the two ends from flying out and injuring when the explosion occurs. While cooling the bottle body, use a fire hook or the like to rotate the bottle body so that the nozzle is upward or toward the side to reduce the risk of explosion, and then take fire-fighting measures.

4, the group of petroleum liquefied gas cylinders burning, often occurs in the gas cylinder supply station, threatening, easy to cause continuous burning, explosion. At this point, the burning cylinder and the threatened cylinder should be cooled first, and the filling valve should be closed, the gas source should be cut off, and the unburned cylinders should be evacuated while cooling; for a few burning cylinders, the fire hook can be used to drag the group out. After the fire. When evacuating, keep the bottle upright and prevent the liquefied gas from spreading out.

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