Thermal oil boilers are boilers that perform heating processes using special thermal oil. At one end of the boiler, there is a chamber where the oil is heated, while on the other side there is a chimney assembly for the evacuation of the smoke resulting from combustion. Hot oil boiler is preferred in many different sectors due to its affordable cost and high efficiency.
You can find the features of liquid and gas fuelled superheated boilers on our page and you can get detailed information by contacting Hisarmak.
Hot Oil Boiler with Rotary Grate
In the rotary grate combustion system, from the moment the coal is poured into the grate from the service bunker, it moves towards the furnace with the rotation speed of the grate. When it first enters the furnace, under the effect of radiation heat
Fluidized Bed Hot Oil Boilers
Fluidised Bed Hot Oil Boiler These are fully automatic controlled, high efficiency, environmentally friendly and water tube boilers designed for solid fuel combustion.
Moving Grate Thermal Oil Boiler
Thanks to the moving grate combustion system, which is also applied in solid fuel systems, proportional operation and high efficiency are provided according to the heat requirement in the system.
Hot Oil Boiler
Where Are Hot Oil Boilers Used?
Before the widespread use of hot oil boilers, industries like automotive, textile, and similar sectors mainly relied on steam boilers. However, over time, hot oil boilers have replaced them. A hot oil boiler can be used in any application requiring heating. Especially in cases where high temperatures are needed, hot oil boilers have become a preferred choice.
Why Are They Used?
The main reason for using hot oil is its efficiency. When heat needs to be produced with fluid media, thermal oils stand out due to their efficient characteristics. Oils can rapidly reach high temperatures without evaporating. Capable of reaching temperatures up to 350 degrees Celsius, hot oils also offer advantages in terms of cost, ease of use, and accessibility.
What Are the Prices of Hot Oil Boilers?
The prices of hot oil boilers may vary based on several factors. The most significant factor affecting the price is the boiler’s capacity. As the capacity increases, the price also changes accordingly. Additionally, other features of the boiler play a major role in determining the price. For detailed information about hot oil boiler prices, please contact us via our contact page.
What Are the Models?
Fluidized Bed Hot Oil Boilers are designed for solid fuel combustion, fully automatic, high-efficiency, environmentally friendly, and water-tube type boilers. In cases where energy needs to be generated using solid fuel, hot oil boilers offer highly efficient performance. For more details about the models and prices of hot oil boilers (also known as thermal oil boilers), please refer to our product categories.
Working Principle of Hot Oil Boilers
Hot oil boilers (also referred to as thermal oil boilers) are systems used in industrial facilities for heating processes that require high temperatures. Fundamentally, they use a specially formulated heat transfer oil as the heat transfer fluid, which circulates in a closed-loop system. The operating principle can be summarized step by step as follows:
Fuel and Burner
The hot oil boiler typically includes a burner powered by natural gas, liquid fuel, or solid fuel.
When the burner is ignited, the heat generated is transferred to the oil through the coil or heat transfer surfaces.
Heating the Heat Transfer Oil
The heat transfer oil flowing through the tubes inside the boiler absorbs the high temperature generated by the burner.
The oil is heated to a specific temperature (for example, between 200°C – 350°C or higher).
Continuous Circulation (Circulation Pump)
The heated oil is circulated throughout the system with the help of a circulation pump.
This high-temperature oil is directed to process equipment (such as reactors, dryers, heaters, etc.) that require heat.
Heat Transfer
The hot oil transfers its heat to the process it is sent to.
During this transfer, the oil cools down slightly and returns to the system.
Return and Reheating
The relatively cooler oil coming from the process equipment is redirected back to the boiler inlet.
The oil is reheated in the boiler, continuing the closed-loop cycle.
High Temperature at Low Pressure Advantage
Hot oil systems can operate at or near atmospheric pressure.
This enables achieving high temperatures without the need for high pressures as required in steam systems.
Safety and Control
The systems are typically equipped with sensors for temperature, pressure, flow, and level.
For safety and efficiency, automation and control systems are employed. In the event of overheating, pressure build-up, or low flow, safety equipment such as relief valves and control valves are activated.
In summary, the burner powered by fuel raises the temperature of the heat transfer oil in the hot oil boiler. The heated oil circulates in a closed loop, delivering heat to process equipment and returning to the boiler for reheating. This cycle ensures continuous and reliable heating, especially in industrial applications that require high temperatures.
