Hot oils are prone to degradation due to oxidation and thermal cracking. As oil degrades, it produces carbon build up-and this ultimately results in system contaminants in the form of sludge and coke. When these products collect throughout your system-particularly in pump seals, valves, and other internal regions-they can result in a wide range of equipment issues or even worse, a full system breakdown. Continuous build up of carbon contaminants and the lack of a proper hot oil filtration system can be detrimental to different components of your equipment, specifically to heating surfaces, which can reduce the overall efficiency of heat transfer within your system. This is one of the primary reasons why industrial filtration is critical to hot oil heaters and similar types of industrial systems. A well-designed and fully functional hot oil filtration system ensures proper heat transfer and prevents system issues commonly caused by sludge and coke build-up within hot oil heaters.
Rapid hot oil breakdown and degradation due to oxidation and thermal cracking also entails additional cost because of increased oil replacement and greater labor man hours brought about by the increase in maintenance and repair. Additional costs also come from additional replacement parts, which can quickly add up to considerable amounts, when sludge and contaminants get to seals, rotors, valves, mag-drive canisters, and other expensive to replace system components. When an industrial filtration system is in place, all these additional expenses can be avoided, while reducing the number of man hours needed to maintain and keep watch of the system’s efficiency.
In addition to sludge and coke, which are generally caused by carbon formation, many other types of contaminants can be introduced to a thermal fluid system-from dust and dirt to sand, mill scale, and piping slag (which can also accumulate during installation and even during downtime maintenance). Most hot oil heaters feature y-type hot oil filtration systems that serve as basket type strainers installed before a system pump. These types of industrial filtration systems are designed to protect valves and flow meters and help prevent pump cavitation, effectively protecting the system from mechanical seal failure.
Hot oil filtration systems have many other benefits, including efficient removal of particulates which degrade the oil. Fluid viscosity maintenance-which effectively reduces sludge build-up-is another. The proper filtration system likewise allows maintenance of thermal efficiency (thus reducing energy cost), longer oil life, and reduced maintenance costs as pumps and valves are protected.