Thermal oil pump accessories - the composition of thermal oil

Thermal Oil pump accessories - the composition of thermal oil Thermal oil pump accessories, thermal oil is generally refined by the base oil plus a variety of additives, the base oil accounts for more than 90% of the total heat-conducting oil, the performance of the thermal oil plays a decisive role, additives A smaller proportion, but can enhance or give some special properties of HTF. Heat-conducting oil pump parts, heat-conducting oil base oil are mostly refined, high Aromatic content of narrow-cut crude oil distillate, such as High-temperature pyrolysis of crude oil residues of oil, FCC diesel oil, acid-base clay refining or hydrotreating can be obtained Low acid value, low color, low boiling point, low content of base oil. The selection of crude oil fractions with high aromatics content is due to the good thermal stability of the oils and the order of thermal stability of the hydrocarbons in each group as aromatics> naphthenes> alkanes. With the increase of crude oil flash point and initial boiling point, the viscosity and solidification point of base oil have correspondingly increased and increased. The narrow flash distillation range is selected. While ensuring the high flash point and initial boiling point of base oil, Good low temperature activity and freezing point. In the production of heat-conducting oil pump accessories thermal oil, the need to add appropriate compatibility of good high-temperature antioxidants and composite anti-coke detergents, in order to better improve and improve the heat-conducting oil thermal stability and anti-oxidation stability. In order to ensure the normal use of HTF in the cold winter in the north, proper amount of pour point depressant can be added as required to reduce the freezing point of the HTF to a certain extent. In addition, the basic components of the additives in the process of using heat-conducting oil has a certain degree of neutralization of acid.