The role of flangebelts in thermal oil systems

Thermal oil is widely used in industrial processes, such as chemical production, power plants, and the food industry, to efficiently transfer heat at high temperatures. Like any medium, there is a risk of leakage, which can affect the safety and operation of the system. Flange protectors play a crucial role in protecting flanges and seals from damage and making leaks visible at an early stage.

What is thermal oil and why is it used?

Thermal oil, also known as heat transfer oil, is a fluid that efficiently transfers heat while remaining very stable at high temperatures. It is commonly used in closed systems, such as heating systems, chemical reactors, and industrial boilers, where water is undesirable due to corrosion risks and high temperatures. Thermal oil can be harmful to the environment in case of leaks, as it is often flammable and difficult to clean.

Applications of thermal oil

• Industrial heating systems: Thermal oil is used to transport heat to various parts of a system, without creating pressure differences or the risk of steam formation.
  
• Petrochemical industry: In chemical processes that require a high, constant temperature for efficient operation, thermal oil is often used as a heat source.
  
• Food industry: In food processing, such as baking or pasteurization, heat transfer oil provides precise temperature control without the risk of boiling or evaporation.
  
• Power plants: Thermal oil is used in solar thermal plants to store solar energy and transport it over long distances to power plants.
  

Advantages of thermal oil over other heat transfer fluids

• High thermal stability: Heat transfer oil remains stable at temperatures between 200°C and 400°C without the risk of overheating or corrosion.
  
• Low viscosity: It can be easily pumped through the system, even at low temperatures, which improves energy efficiency.
  
• No phase change: Unlike water, which can evaporate at high temperatures, thermal oil stays in liquid form even at high pressure and temperatures, reducing the risk of steam formation and explosions.

Operation of a thermal oil transport system

Thermal oil is pumped through a closed circuit and heated in an oil boiler. The system consists of pumps, heaters, heat exchangers, and storage tanks. Flange protectors are used to protect the flanges (the connections between pipes, valves, and other components) from damage and to detect leaks early, diverting them so they don’t spill onto walkways or other areas. 

Application of flangebelts in various industries with thermal oil

Flange protectors, such as Protectem Flangebelts, are specifically designed for leak detection. When a flange starts to leak, it can be quickly and effectively detected, allowing for rapid intervention to prevent further damage. Additionally, the leak can be controlled and directed to escape through a specific point, often a leak pipe, enhancing the safety of the system.

Different types

Depending on the application and environmental conditions, flange protectors are available in various materials and finishes. There are three main types:

• Type T (Teflon): These flange protectors provide excellent protection in systems operating at temperatures from -269°C to +270°C (short-term up to 300°C).
• Type G (Graphite): These flange protectors offer robust protection at very high temperatures. Suitable for applications ranging from -100°C to +450°C (short-term up to 700°C).
• Type B (Basic): This type is made of stainless steel without additional sealing and is perfect for less demanding applications.
  

Importance of leak detection and maintenance

Our flange belts are equipped with leak detection and drainage systems, which are essential for quickly detecting leaks, especially when thermal oil or hazardous substances circulate within the system. Flange protectors are directly placed on the flange of the pipe or system and provide a tight seal without interfering with the functioning of the flange. They require minimal maintenance, but it is important to inspect them regularly for damage. Replace flange protectors immediately if they are damaged to maintain the integrity of the system.

Advantages of flange protectors

• Leak detection and increased safety: By providing a tight seal between the flange and the environment, leaks are detected early, improving the safety of the surrounding area and enabling faster intervention.
• Controlled leaks: Flange protectors ensure that leaks escape through a specific point (such as a leak pipe), which increases safety and prevents larger-scale damage.
• Corrosion protection: They protect flanges from external corrosion, extending the life of the installation and preventing failure.
• Energy savings: Thanks to leak detection, flanges can still be insulated, leading to significant energy savings.
• Prevention of physical damage: Flange protectors shield against damage from external influences such as impacts, shocks, or extreme weather conditions, improving the efficiency of the installation and minimizing repairs.
  

Conclusion

Our Protectem Flangebelts provide essential protection for thermal oil systems and other industrial systems. They reduce risks such as leaks, corrosion, and physical damage, enhance safety, and increase the system’s efficiency. In combination with regular maintenance, installations remain safe, reliable, and cost-effective.

Do you have any questions? Our technical team is ready to assist you.