Regarding the high-temperature steam heating process for hydrogenating triphenyl!

Steam heating in power plants and triphenyl is two different things; why mix them up? You make simple questions complicated. It’s quite common for the exhaust gas from power plants to be cooled and depressurized to produce low-pressure saturated steam, which is then used for heating; this technology is well-developed, so just hire a professional designer

Hydrotriphenyl belongs to organic compounds, and it inevitably undergoes cracking and thermal polymerization reactions after operating at high temperatures for extended periods. As a result of cracking, the vapor pressure of hydrogenated terphenyl increases, while the initial boiling point and flash point decrease; additionally, its viscosity and specific gravity reduce ； The result of thermal polymerization is the formation of compounds with higher molecular weights, which ultimately lead to the deposition of coke, thereby affecting material transport and heat transfer. Furthermore, due to leakage or poor nitrogen sealing, direct contact between air and high-temperature hydrogenated triphenyl will accelerate the reaction to form residual carbon. The higher the operating temperature, the faster the rate of these cracking and thermopolymerization reactions. Therefore, in practical use, the maximum temperature must not exceed 375°C, and the maximum operating temperature should be kept below 343°C.

Maybe I didn’t explain it clearly enough. What I mean is that originally, organic heat carrier furnaces were used to heat triphenylhydride; now, high-temperature and high-pressure steam is used to heat the organic heat carrier, that is, triphenylhydride, in order to supply heat to users!

Your ability to express yourself is quite poor. In the past, was it not true that a furnace was used to heat the trihydride (which can be considered as a heat transfer fluid), and then this trihydride was used in a circulation system to heat other things? Now, no furnace is needed; instead, steam is used to heat the trihydride. It’s just a simple change from using a furnace to using steam, but you’ve described it in such a way that no one wants to pay attention to you

This is a problem with the operation of the heat transfer medium system. It is still necessary to properly control the heat supply; the temperature should not rise too quickly, and when cooling down, the heating source should be turned off once the temperature drops below 100°C.

Is the poster trying to use steam to replace the original coal furnace for heating trihydrogen? Use hydrogenated triads to supply heat to users again? Why not use steam to heat the users directly? Keep in mind that there is always a loss during each heat exchange! If the processes and equipment of downstream users cannot accept steam heating, I recommend replacing coal with biomass – this policy provides strong support for such a change! Of course, Beijing won’t do!

Steam heats the user directly; it is high-temperature and high-pressure at 120 bar. Using steam for direct heating is costly, and maintenance is also inconvenient

There is mainly one issue: how to avoid water hammer

The precautions for this operation you mentioned are actually not complicated. It’s even simpler than coal-fired heat transfer oil furnaces. On the one hand, attention must be paid to the requirements for steam operation; on the other hand, it is somewhat similar to previous heat transfer oil furnaces. And it’s a bit simpler than a heat transfer oil furnace. The operating procedures are basically the same as those for heat medium boilers; the only difference is the heat source used for heating. It seems that Xinfengming is responsible for managing this project, and the facility has been in operation for a few months now. The heat exchanger is from Hangzhou Boiler.

Steam-based heat exchange fluids do not experience water hammer phenomenon. The water is all pumped back into the tank using a hydrophobic pump