The tubular heater is a crucial heating equipment used in the oil refining, petrochemical, coal chemical, and fiber industries. It has become the heart of heating, cracking, and conversion reactions in processes such as coal tar, asphalt, ethylene, gasoline and diesel, and lubricant hydrogenation refining; hydrogen production, etc. It plays a significant role in the production quality, product yield, energy consumption, and safe long-term operation of the entire facility. Its role in the production process is to utilize the heat energy from the high-temperature flame and flue gas produced by the combustion of fuel inside the furnace to heat the high-speed flowing material in the furnace tubes, achieving the required temperature for subsequent process steps or conducting chemical reactions within the tubes. Compared to other industrial furnaces, the liquids or gases flowing within the furnace tubes are typically high-temperature, high-pressure, flammable, and explosive hydrocarbons; most heated media tend to coking inside the tubes; precise control of furnace and material temperatures is required; the heating method is direct flame heating; the main fuel is flammable and explosive liquid or gas; it poses high risks and has stringent operating conditions; and requires long-term continuous operation. Therefore, the tubular heater holds a pivotal position in oil refining and petrochemical production.
Selection Requirements for Tube-Type Heating Furnaces: Tube-type heating furnaces for oil refining and chemical industry are custom-made equipment. Therefore, the manufacturing of the furnace is tailored to the client's construction drawings or design data sheets, along with relevant technical requirements, ensuring specific design, production, supply, and installation to meet the diverse needs of different customers.
The construction of a tubular heating furnace consists mainly of five major components: the radiant chamber, the convection chamber, the waste heat recovery system, the combustion system, and the air supply and exhaust system. The main auxiliary equipment includes the fan for air supply, the induced draft fan, and the air preheater.
