How do you know when you need to clean out your hot oil system, and what things should you keep in mind as you do it? This article describes:
Let’s get started. The obvious indication that your fluid has degraded to the point that you need to clean out your system is that it cannot maintain the operating temperature of the process. This is evidenced when you find yourself dialing up the temperature on the heater, and you may notice that the flow rates have dropped off as well. All these are indicators that the fluid has degraded to the point that it is starting to sludge up the system and possibly coating the internal components. This coating can act as an insulator to keep the heat away from the oil in the heater as well as keep the heat in the oil at that process.
Whether the heat transfer fluid has begun to degrade due to oxidation, thermal cracking or contamination, it will need to be cleaned out. However, there are enough differences with each system and situation to make a single detailed clean out procedure impractical or even incorrect for some cases. Instead, several general options are presented. Talk with a thermal fluid specialist to determine which option is best for you.