The hazards of putting gasoline in plastic drums

- Dec 25, 2019-

Plastic can hold a lot of things, but is it possible for flammable materials? For example: gasoline. Anyone with experience knows that it is not possible. But why not? And is it totally impossible? Many people fail to figure out why. So why not put gasoline in plastic drums? What are the dangers? Now, follow Xiaobian to understand clearly.

1: Generally, plastic buckets are in friction with the outside, especially when the movable plastic buckets are transported, the static electricity builds up on the outer surface. When the static electricity accumulates to a certain level, it may cause brush-type power generation. The energy of brush-type discharge is relatively small. Up to 10MJ, if this brush discharge happens to be around the mouth of the tank, it may ignite the flammable vapor permeated from the mouth of the tank, which may cause flashing in the tank due to tempering.


2: When filling the barrel with liquid, the friction between the liquid and the wall thickness during the filling process will bring static electricity into the barrel, and the static electricity in the barrel will accumulate, which may cause a brush discharge between the liquid and the electrical conductor. The brush discharge will ignite the flammable vapor cloud in the barrel, causing the barrel to burst.


Then why do we still see plastic barrels filled with high-grade liquor in the mall? Xiaobian believes that the key to the harm of static electricity is the amount of energy released by static electricity, and small-capacity plastic barrels, because of the total area and light weight, accumulate on the top. The charge, even if discharged, is sufficient to ignite flammable vapors.