Vietnam
Thermal oil is a specially designed industrial oil primarily used for indirect heat transfer. The following is a detailed explanation of its core features and application scenarios:
1. Definition and classification
Definition: Thermal transfer oil belongs to the lubricant series in petrochemical products, formerly known as "heat transfer oil" or "thermal conductive oil".
Classification: According to chemical composition and preparation process, thermal oil can be divided into the following two categories:
Mineral type: Made from Class I and II base oils, refined and supplemented with antioxidants and other additives, it has low cost but poor high-temperature stability.
Synthetic type: mainly composed of Class II or above base oils, with a wider temperature range (such as stronger high-temperature stability) and longer service life.
2. Core Features
Efficient heat transfer: capable of generating high temperatures (up to 350 ℃) under low steam pressure, with uniform heating and accurate temperature control.
High safety: Compared to water or steam heating, the pressure of the thermal oil system is lower, and it is not flammable or explosive.
Environmental protection and energy conservation: recyclable, reducing heat loss and equipment corrosion.
3. Application Fields
Thermal oil is widely used in the following industrial scenarios:
Petrochemical industry: high-temperature equipment such as cracking furnaces and reaction vessels.
Textile printing and dyeing: dyeing, drying and other process flows.
Food and medicine: sterilization equipment, drying machines, etc.
4. Selection and maintenance
Standard requirements: It must comply with the national standard GB 23971 and be regularly tested for oxidation stability, moisture content, and other indicators.
Mixing precautions: It is not recommended to mix different types or brands of thermal oil to avoid chemical reactions or performance degradation.
In summary, thermal oil has become an indispensable key medium in the field of modern industrial heating due to its high efficiency, safety, and environmental friendliness.
