What are the reasons for the decrease in the flash point of heat transfer oil? Is there any good solution?

The reasons for the decrease in the flash point of heat transfer oil may include the following: 1. Oxidation: When heat transfer oil is exposed to air for an extended period of time, its flash point decreases due to oxidation. 2. Impurities: The presence of impurities in heat transfer oil, such as water, oxygen, acids, and bases, can affect its performance and lower its flash point. 3. Overheating: The heat transfer oil exceeds its maximum operating temperature, which accelerates chemical reactions and further lowers its flash point. To address the issue of a lower flash point in heat transfer oil, the following measures can be taken: 1. Replace the heat transfer oil regularly: Timely replace aged or contaminated heat transfer oil to keep it clean and fresh. 2. Choose high-quality heat transfer oil: Try to purchase heat transfer oil of good quality, as this can improve its performance and service life. 3. Inspect the heat transfer oil: Conduct regular chemical analysis and physical tests on the heat transfer oil, and address any issues that are found promptly. 4. Strengthen maintenance: Enhance the maintenance of the heat transfer oil system to ensure its stable and safe operation. .