Thermal Oil Heater

Our thermal oil heater is a industrial heating device designed to provide high-temperature heat with low operating pressure. Unlike traditional steam boilers, this system utilizes thermal oil as a heat transfer medium, circulating it through a closed-loop system to deliver precise, uniform, and efficient heat to various industrial processes.

By leveraging electrical energy as a clean power source, this heater offers an environmentally friendly alternative to fossil fuel-based systems, ensuring zero emissions and high thermal efficiency.

How It Works

The system operates on a simple yet highly effective principle:

• Heating: The immersion electric heating elements are directly inserted into the thermal fluid (heat transfer oil) within the manifold.
• Circulation: A high-temperature circulating pump forces the oil to flow in a liquid phase.
• Heat Exchange: The heated oil travels through the pipeline to the heating consumer (e.g., reactors, drying equipment, heat exchangers) and returns to the heater to be reheated.
• Control: An advanced PID temperature control system maintains the exact temperature required, typically up to 350°C (662°F) , with extreme precision.

Key Features & Advantages

• High Temperature, Low Pressure: Achieves operating temperatures of up to 350°C while maintaining very low system pressure, making it safer than steam systems.
• Energy Efficiency: Closed-loop circuit minimizes heat loss. Electric heating offers nearly 100% energy conversion efficiency at the point of use.
• Precise Temperature Control: Advanced digital PID controllers maintain temperature stability within a narrow range (±1°C), ensuring product quality and process consistency.
• Environmentally Friendly: Zero emissions on-site; no combustion, flue gas, or soot. It is a clean energy solution.
• Safe & Reliable: Equipped with multiple safety protection devices, including over-temperature alarms, low oil level alarms, flow failure protection, and pressure relief systems.
• Easy Installation & Operation: Compact skid-mounted design allows for quick installation. Simple plug-and-play operation with user-friendly HMI (Human-Machine Interface).
• Long Service Life: High-quality electrical heating elements and thermal oil ensure long-term stable operation with minimal maintenance.

Applications

Electric Thermal Oil Heaters are widely used across various industries where high-temperature heating is required:

• Chemical Industry: Heating reactors, autoclaves, and distillation units.
• Oil & Gas: Preheating heavy oil, bitumen heating, and pipeline tracing.
• Construction Materials: Heating presses for plywood, particleboard, and laminates.
• Food Industry: Frying, oil heating, and distillation processes.
• Textile Industry: Drying and setting machines (Stenter machines).
• Rubber & Plastics: Heating calenders, mixers, and extruders.
• Renewable Energy: Biomass pyrolysis and biodiesel production.

 CONTROL

• Digital PID temperature controller
• SSR or SCR power controllers
• Brand electrical components (Siemens, Omron, Schneider Electric, ABB, etc.)
• Heat ON/OFF switch
• Audible and visible alarm indicators
• Control Accuracy: ±1°C
• 3∼3000KW input power supply to your specifications
• Temperature recorder (optional)
• PLC with HMI(touch panel) (optional)
• RS485 communication protocols (optional)
• Programmable temperature controllers (optional)

► SAFETY PROTECTION

• Over Temperature Alarm, Automatic Interlock Protection
• Pressure Detection: pressure gauge with electric contact which show real pressure of entire system was equipped on the piping. Control system will alarm immediately when pressure below a certain value, meanwhile the Heater stop too.
• Oil Low Level Detection: Expansion tank is equipment with a ball float level controller, Control system will alarm immediately when pressure below a certain value, meanwhile the Heater stop too.

SPECIFICATIONS

Notes: For more models, please contact us. The unit could be entirely bespoke, we can design and tailor heating capacity, pump, etc. to your specification.

SCHEMATIC DIAGRAM

PIPE CONNECTION DIAGRAM