Oh my god, I encountered a very dangerous acetylene backfire accident today, which scared me. I am still very scared even now.
In the afternoon, I went with another person to use an acetylene flame to anneal the two ends of the pipeline for easy processing. He was responsible for the operation, and I helped move and rotate the pipes again and again. After completing the work, there were no problems (although I knew it was dangerous and a bit afraid). Then the channel steel was cut again later, and as it was about to be cut, there were suddenly several explosions and backfires, causing the gas pipe to burn through. Fortunately, the valve was promptly closed without causing any more serious consequences.
Afterwards, he got a big burn on his wrist, and I wasn’t injured but was scared. This kind of thing is really terrible…