Accidents caused by heat tracing
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An accident occurred in our factory, and I would like to share it with everyone to help prevent similar incidents from happening. Due to a leak at the flange of the heat tracing pipe, the issue was resolved and no leaks remain. Clean some of the materials from the surface. A few days later, spontaneous combustion occurred in that area while it was under continuous heating; it was detected and dealt with promptly. The main cause of this accident was the leakage of materials into the insulation material, which led to spontaneous combustion under high-temperature conditions. It is required that in cases where similar heat tracing is used in the future, the insulation material must be replaced and the site cleaned thoroughly. Let everyone take this as a reference to avoid similar accidents, and I also hope everyone will share their own experiences.
We have also experienced similar situations
Our electric heat tracing system short-circuited and caught fire... Fortunately, no material was leaked, but it was all natural gas
I would like to ask the original poster and the person from the third floor: since pipe leaks can lead to serious consequences, it is necessary to have strict control over the heating temperature, and safety must be ensured. Specifically: 1) the heating system must not cause fires (as point heating has this drawback); 2) the material pipes must not leak; 3) the heating temperature must not be too high. I’m wondering if there are any better ways of providing heating
Our factory also has electric heat tracing； Steam tracing was used in the design of this pipeline; making any changes would require significant work. We will pay more attention to this aspect now.
Many people use electric heating elements these days, and if the connection boxes for such elements are not installed properly, they can come loose and easily cause sparks.