zozen boiler
Home Service FAQs FAQ of thermal oil heater What are the structural components of gas-fired thermal oil heater?

What are the structural components of gas-fired thermal oil heater?

15 Apr 2022

The thermal oil heater is a boiler that uses heat-conducting oil as heat medium to transfer heat. With the high-temperature characteristics of heat-conducting oil, thermal oil heaters can supply heat at low pressure and high temperature, and are widely used in the daily operation of other industries such as petroleum, chemical industry, pharmaceutical industry, textile printing and dyeing, light industry, building materials, food, road asphalt heating, etc. So, do you know the structure of gas-fired thermal oil heater?

 

ZOZEN gas-fired thermal oil heater adopts a three-return disc tube structure, and the end of the coil adopts a necking coil, which effectively protects the furnace wall at the end of the boiler, and is equipped with an advanced combustion device, so that the boiler runs fully automatically. After the fuel is ignited by the burner, the formed torch fills the circular tube and transmits radiant heat through the wall of the coil, which is the first pass. The high-temperature flue gas generated by combustion converges at the rear furnace door and turns into the second pass, namely the convection tube bundle area. After convection heat exchange, the flue gas temperature gradually decreases and then reaches the front furnace door, where it turns into the third pass tube bundle area, and then enters the chimney through the economizer and is discharged to the atmosphere.

 

The basic configuration of gas-fired thermal oil heater system includes the following main parts:

1. Combustion system: furnace, burner, ignition device, etc.

2. Oil circulation system: circulating oil pump, oil injection pump, storage tank, expansion tank, etc.

3. Control system: matched with boiler control box.

4. Smoke system: refers to the system composed of flue gas and air generated by combustion, mainly including induced draft fan, chimney and other equipment.

The specific configuration of gas-fired thermal oil heater system will be different according to the specific needs of users and actual working conditions, to realize green and efficient heat energy conversion.

Related news View More
  • ZOZEN Boiler’s 2025 Global Exhibition Tour: Deepening Overseas Market Deployment
    In 2025, ZOZEN Boiler is leveraging a series of international exhibitions to continue cultivating overseas markets. From Asia’s Pakistan Textile Expo to Europe’s Russian HVAC and Boiler Exhibition and Industrial Boiler & Heat Exchange Exhibition, and onward to Serbia’s TOPS Scientific Seminar, ZOZEN showcased its high-efficiency, eco-friendly boiler products and customized energy solutions to global customers—demonstrating strong technological capability and market co...
    30 Dec 2025
  • ZOZEN: Top Water Tube Boiler Manufacturer Showcases Eco-Power at HEAT&POWER EXPO 2026
    The industrial heating sector's premier gathering is approaching as manufacturers and technology providers prepare for HEAT&POWER EXPO 2026, the international exhibition dedicated to industrial boiler equipment, heat exchange systems, and power generation technologies. Among the exhibitors converging on Moscow's Crocus Expo Exhibition Center, ZOZEN Boiler stands out as a Top Water Tube Boiler Manufacturer, bringing decades of engineering innovation to an audience seeking advanced thermal sol...
    24 Dec 2025
  • How ZOZEN Becomes a Top Firetube Boiler Manufacturer for Food Processing Plant?
    For modern food processing plants, selecting the right boiler partner can determine whether production runs smoothly or constantly suffers from interruptions. Behind every sterilization line, blancher, dryer or CIP system is a need for clean, reliable and energy-efficient steam. In this context, ZOZEN has grown into a Top Firetube Boiler Manufacturer for food processing plants, combining mature firetube boiler technology with deep food industry experience and a broad range of thermal energy...
    24 Dec 2025

Find the Right Boiler For You

Name *

Email *

WhatsApp/WeChat

Products

Power/Capacity