Thermal oil Jilin City synthetic high-temperature thermal oil source manufacturer, large quantity, excellent L-QC320 thermal oil

Description :

　　Main properties of thermal oil:

　　1. Thermal stability is an important performance of heat transfer fluids. The degree of thermal cracking and polymerization during use varies depending on the thermal stability. Thermal cracking produces small molecules with low boiling point, which can easily cause gas resistance in the system, leading to pump cavitation, as well as high evaporation loss of oil products and environmental pollution; Thermal polymerization produces high boiling point macromolecules, which gradually deposit on the surfaces of heaters and pipelines. The resulting carbon deposits will affect the heat transfer efficiency and temperature control accuracy of the system. The L-Q series heat transfer fluid is selected from base oils and additives with excellent thermal stability, thus the product has excellent thermal stability;

　　2. Oxidative stability is another important performance of heat transfer fluids. Open systems or expansion tanks that do not use nitrogen sealed systems will undergo oxidation reactions at the interface between oil and air. Generally speaking, under conditions above 60 ℃, oil products undergo oxidation upon contact with air, and the oxidation products gradually form gum and sediment, which adhere to the surfaces of heaters and pipelines and produce carbon deposits. At the same time, acidic substances produced by oxidation reactions can also corrode equipment and cause leaks. The L-Q series heat transfer fluid is carefully selected from base oils with excellent antioxidant properties and high-temperature antioxidant and anti scaling additives, which can suppress the rate of oxidation sludge production and the tendency to deposit and scale, thus maintaining good heat transfer performance of the system;

　　3. Low volatility: The initial boiling point is used to indicate the volatility of the heat transfer fluid. The heat transfer fluid used in open heating systems, if the initial boiling point is lower than the operating temperature, is prone to cavitation of the pump, gas resistance in the operating system, and excessive evaporation loss. The high initial boiling point of the L-Q series heat transfer fluid results in low vapor pressure and volatilization loss, ensuring smooth system operation;

　　4. Good safety: The heat transfer fluid uses flash point and self ignition point to indicate its safety. The flash point is used to indicate the safety performance of the heat carrier in a closed loop system, while the self ignition point can indicate the self ignition tendency of the heat transfer fluid in the air when it leaks under high temperature conditions. The L-Q series heat transfer fluid has a high flash point and self ignition point, which can ensure the safety of system operation;

　　5. Heat transfer performance: The L-Q series heat transfer fluid not only has high thermal stability, but also has excellent heat transfer performance. Appropriate viscosity can provide high cycle efficiency; Higher specific heat and thermal conductivity can effectively transfer or absorb heat, improving fuel economy and operational efficiency.

　　Precautions for thermal oil:

　　1. The authenticity of the product at high operating temperatures was determined by the Institute of Stone Science using thermal stability testing methods, which means that after testing at high operating temperatures, the appearance is transparent, without suspended solids or precipitation, and the total change rate is not greater than 10% corresponding to the temperature. Analyze the authenticity of the product manual by comparing it with the new standards. Especially, it is important to understand how the specified high operating temperature is determined and whether there is an institutional testing report. According to international standards, the high temperature usage temperature of mineral based thermal oil does not exceed 320 ℃, and most of these oils have a high usage temperature of 300 ℃;

　　2. Assess the evaporation and safety of the product, and ensure that the flash point meets the standard requirements. The initial boiling point should not be lower than its high operating temperature, the distillation range should be relatively narrow, and the ignition point should be relatively high;

　　3. The refined depth of the product is examined, and it appears as a light transparent liquid with good storage stability. It does not change color or precipitate after exposure to light. Residual carbon not exceeding 0.1%, sulfur content not exceeding 0.2%;

　　4. Assess the low-temperature fluidity of the product and select the appropriate low-temperature performance based on the user's location and the environmental temperature of the equipment. The pour point of QB and QC is not higher than -9 ℃, and the low-temperature kinematic viscosity (at 0 ℃ or lower temperature) is relatively low;

　　5. The heat transfer performance of the product is evaluated for its low viscosity, high density, high specific heat capacity, and thermal conductivity;

　　6. Choose products produced by legitimate manufacturing enterprises. If conditions permit, on-site inspections can be conducted to assess the completeness of its production equipment and testing methods.

　　Due to the performance characteristics of heat transfer oil, its service life is increased to a certain extent. Moreover, this heat transfer oil can also provide a certain amount of efficient heating fluid, which ensures that the system can be used in a relatively good cycle. In addition, when the temperature of the grease on the surface of the heater starts to rise, the overall temperature profile will be below the high limit, and as a result, the vapor pressure of the heat transfer oil will also decrease, leading to cracking of the grease. This performance advantage can, to a certain extent, prevent the volatilization of decomposition products, thereby improving the efficiency of the system.

　　Thermal oil has the properties of resistance to thermal cracking and chemical oxidation, good heat transfer efficiency, fast heat dissipation, and good thermal stability. Thermal oil, as an industrial oil heat transfer medium, has the following characteristics: it can achieve high operating temperatures under almost atmospheric pressure conditions. It can greatly reduce the operating pressure and safety requirements of high-temperature heating systems, and improve the reliability of the system and equipment; It can meet the process requirements of heating and cooling at different temperatures within a wider temperature range, or achieve the process requirements of high-temperature heating and low-temperature cooling simultaneously using the same thermal oil in the same system. It can reduce the complexity of the system and operations; Omitting the water treatment system and equipment has improved the thermal efficiency of the system and reduced the maintenance workload of equipment and pipelines. It can reduce the initial investment and operating costs of the heating system; In the event of a system leak caused by an accident, combustion may occur when the heat transfer oil meets an open flame, which is a problem that exists in the heat transfer oil system compared to the steam system. However, under the condition of no leakage, the operational safety of the thermal oil system is higher than that of water and steam systems because it operates under low pressure conditions.

AfterSalesService :

• heat transfer oil