Problems with heat transfer oil furnaces

Using a heat transfer oil furnace to control the temperature should be no problem. As a liquid heating medium, the temperature of heat transfer oil fluctuates less significantly than that of steam, which varies greatly with pressure ； At the same time, the heat transfer oil heated by the heat transfer oil furnace is reused, resulting in relatively low heat loss and excellent energy-saving effects. However, the heat transfer coefficient of heat transfer oil is low, which requires an appropriate increase in the heat exchange area of the heat exchanger; for the same reason, the thermal efficiency of heat transfer oil boilers is relatively low ； When using a heat transfer oil furnace, it is necessary to prevent carbon buildup caused by improper operation. In short, heat transfer oil furnaces are very suitable for process systems with stringent temperature control requirements.

Thank you to the idyllic poet for the answer. So how can we prevent carbon buildup in heat transfer oil furnaces?

My company specializes in the automated temperature control systems for heat transfer oil furnaces. You can get in touch with me; I hope to be able to offer you some advice. I’m from Shanghai, and my phone number is 13701996427

Preventing carbon deposition in heat transfer oil furnaces: 1. Control the flow rate, with a minimum of 2 m/s for radiant heating surfaces and 1.5 m/s for convective heating surfaces. 2. Regular testing of heat transfer oil includes: residual carbon, esters, viscosity, and flash point. If two of these tests yield unsatisfactory results, or if the content of decomposed components in the heat transfer oil exceeds 10%, it should be replaced or regenerated.

The circulation flow rate is also important. The greater the flow rate, the smaller the temperature difference, and the more accurate the temperature control

To prevent carbon deposition in heat transfer oil furnaces, the following points should be noted: 1. Selection of heat transfer oil – Choose a heat transfer oil with the appropriate temperature based on the temperature requirements of the working environment； Make your choice based on your financial situation; currently, mineral oils available on the market are inexpensive, have a short lifespan, and tend to form deposits and carbon buildup ； Synthetic oils are expensive, but they have a long lifespan and high temperature resistance; some synthetic oils also possess self-cleaning properties, enabling them to reduce and remove carbon deposits. 2. Operation of the heat transfer fluid system: No matter how good the heat transfer oil is, if the operator makes mistakes, it can lead to serious dangers or even damage to the oil; this can cause oxidation of the oil, resulting in precipitation and carbon deposits.

The people upstairs are very professional; our company also has three coal-fired heat transfer oil boilers. To prevent carbon deposition, in terms of operation: first, it is necessary to maintain an appropriate flow rate, and second, the temperature must be well controlled.