Thermal Oil Boilers ｜FEITENG

I. Working Principle

The working principle of thermal oil boilers primarily relies on the high temperature and heat transfer performance of thermal oil. The specific processes include:

1. Heating: The burner in the thermal oil furnace transfers the heat generated by burning fuel (such as coal, oil, gas) to the thermal oil in the heat exchanger (also known as the furnace or combustion chamber).
2. Heat Exchange: The thermal oil is heated in the heat exchanger, raising its temperature. The heat exchanger is usually a pipeline system, where the thermal oil flows and exchanges heat with the high-temperature combustion gases in the combustion chamber.
3. Circulation: The heated thermal oil is pumped out of the heat exchanger and then circulated back to the heat exchanger, forming a cycle of thermal oil flow. This maintains the temperature and heat transfer effect of the thermal oil.
4. Heat Transfer: The heated thermal oil is transported through pipes to the equipment or process that requires heating. In the equipment or process, the thermal oil transfers heat through heat exchange, raising the temperature of the medium (such as air, water, steam, etc.).
5. Control: Thermal oil furnaces are usually equipped with a control system to monitor and control parameters such as the temperature, pressure, and flow rate of the thermal oil, ensuring stable temperature and safe operation within the furnace.

II. Product Characteristics

Energy efficient and energy saving: Thermal oil boilers can achieve high working temperatures under low pressure, with minimal heat loss, resulting in significant energy-saving effects. Stable operation: Based on the concept of forced circulation, thermal oil boilers can achieve high-precision control over the operation of the medium. Good environmental performance: Thermal oil boilers do not produce pollutants such as exhaust gases and wastewater during operation, meeting environmental protection requirements. Long service life: Closed-loop heating communicates with the atmosphere, extending the boiler's service life. Wide range of applications: Thermal oil boilers are not only suitable for heating treatments in industrial production but also find applications in food, pharmaceuticals, and other industries since thermal oil does not damage the nutritional components of materials.

III. Fields of Application

The applications of thermal oil boilers are extremely wide, including but not limited to:

1. Chemical Industry: Used for distillation, evaporation, drying, insulation, melting, and other processes.
2. Plastic and Rubber Industry: Used for hot pressing, extrusion, kneading, dense refining, and heating and insulation of molds.
3. Textile Printing and Dyeing Industry: Used for dyeing, drying, sizing, printing and dyeing, and ironing,烫，定型 of chemical fibers.
4. Food Processing Industry: Used for the maturation treatment of flour products, high-temperature frying of soy products, and high-temperature sterilization of meat products.
5. Papermaking Industry: Used for heating and dissolving chemicals, concentrating black liquor, and forming pulp.
6. Building Materials Industry: Used for heating asphalt, dissolving, and adjusting the heating temperature of emulsified asphalt.
7. Edible Oil Chemical Industry: Used for decomposing fats and oils, hydrogenation reactions, concentration, distillation, etc.
8. Timber Industry: Used for hot-pressing and drying timber.

IV. Merits and Demerits

Advantages:

1. High Safety: Low working pressure, avoiding the risk of high-pressure steam explosions.
2. High Thermal Efficiency: Stable flowing state of the oil medium and high heat transfer coefficient, fully utilizing energy.
3. Simple Operation: The equipment is simple and easy to operate and maintain.
4. Environmentally Friendly and Energy Saving: Minimal heat loss, without producing pollutants such as exhaust gases and wastewater.

Disadvantages:

1. High Transportation and Maintenance Costs: The need for specialized oil media.
2. Difficulty in Risk Control: Strict control of oil temperature is required to prevent safety accidents such as fires.
3. Slow Start-up and Shutdown: Longer start-up and shutdown cycles.
4. Oil Leakage Contaminates the Environment: Once leakage occurs, it pollutes the environment and requires costly cleanup and handling.

In summary, thermal oil boilers play an important role in multiple industrial fields due to their unique working principles and advantages. However, the disadvantages and potential risks should also be fully considered when selecting and using them.