Problems with electric heating of pipelines for flammable liquids

Of course. Electric heating is now widely used in materials such as benzene, PX, acetic acid, crude oil, heavy oil, and wax oil

The original poster is referring to electric heating, while the second person is talking about electric tracing. Electric tracing is applied outside containers and pipes, so it may not be the same thing as what the original poster mentioned

I’ve also seen information suggesting that low-voltage alternating current can be directly applied to pipelines, but I’ve never encountered such a situation, so I don’t dare to comment on it

Without concrete evidence, I dare not draw a conclusion. Here is my personal opinion: for electric heating, assuming that the heating equipment meets the standard requirements mentioned above. From a safety perspective, its danger level is still quite high. First, electric heating generally involves heating from the outside of the system that needs to be heated (such as a storage tank or pipeline), and the heating process is one in which the electric heating element gradually increases in temperature. When the temperature of the system reaches the operating temperature, due to heat transfer and the fact that the heating elements are insulated with asbestos, the temperature of these heating elements is much higher than that of the system. Even if the power supply to the heating elements is turned off, the system temperature still rises as a result of heat transfer from the heating elements, posing a safety hazard. So, should the power be turned off when the system temperature is slightly lower than the required temperature? I also think it’s not advisable, because by how much should you lower it? It’s difficult to answer; in short, the temperature of an electric heating system is not easy to control. Second, the advantages of steam and heat transfer oil heating: Steam and heat transfer oil are used by enterprises to transfer heat by heating water with boilers or using heat transfer oil at room temperature. Its temperature remains relatively stable, and by adjusting the feed valve, the system temperature can be determined with fairly high accuracy. In many cases, the system temperature cannot be properly controlled, leading to fire and explosion accidents

Far-infrared and microwave heating can be utilized; far-infrared heating is already well-established, with many manufacturers in China producing the corresponding equipment. It is possible to heat outside the pipelines or containers; one can search for manufacturers online and then consult with their technical staff.

Far-infrared heating and microwave heating are different from conventional steam and heat transfer oil heating: Have you all used a microwave oven? When heated, the object is heated and its temperature rises simultaneously from the inside and outside.

4#, do you want to commit murder? There is no direct power supply.