Sulfuric acid system heating

Steam is generally used for insulation, but the issue of pipe corrosion also needs to be considered.

It is sufficient to add a circulating water pipe with a DN25 diameter outside the pipeline, and then insulate them together. The temperature should be around 25-30 degrees – this level is stable and does not cause excessive corrosion of the pipes. Electric heating is also an option, but each section should not be too long; set the appropriate temperature and carry out regular inspections.

In the chemical production process, steam tracing is a traditional insulation method for transporting and storing fluid materials. However, since the steam temperature is much higher than the temperature range required to maintain the material, improper temperature adjustment can lead to overheating of certain areas of the material. Furthermore, the insulation of the condensate pipes associated with the steam lines is not properly maintained, resulting in frequent freezing and disruptions to production. Especially when transporting and storing materials with strong corrosivity, it can easily cause localized corrosion of the pipes, severely affecting normal production. The automatic control electric heat tracing system produced by the American company RAYCHEM is used in industrial pipeline insulation and anti-freezing applications; it enables precise maintenance of the process temperature and completely eliminates corrosion caused by localized overheating in the pipelines. Electric heat tracing technology is used for insulation in pipelines with complex transmission routes, those requiring precise temperature control, long-distance transmission pipelines, as well as pipelines that need protection against corrosion and explosions. It offers significant advantages in terms of superior performance, reliable quality, and a long service life (usually 20 years). However, the use of RAYCHEM’s electric heating technology requires a higher one-time investment. The electric heating solution is still feasible. Although the initial investment for electric heating is high, operating costs are significantly reduced, resulting in notable economic benefits. In terms of technical performance, economic benefits, as well as energy savings and environmental protection, self-controlled electric heating technology is clearly superior to steam heating. However, if our company has an abundance of steam, steam tracing could also be considered; after all, economic benefits are what the company takes into account first