The tubular heater is a critical heating equipment used in the oil refining, petrochemical, coal chemical, and chemical fiber industries. It has become the core equipment for heating, cracking, and conversion reactions in processes such as coal tar, asphalt, ethylene, gasoline, diesel, and lubricant hydrofining; hydrogen production, etc. It plays a vital role in the production quality, product yield, energy consumption, and long-term safe operation of the entire unit. Its function in the production process involves utilizing the heat energy from the high-temperature flame and flue gas produced by fuel combustion within the furnace to heat the high-speed flowing material in the furnace tubes, achieving the required temperature for subsequent processes or facilitating chemical reactions within the tubes. Compared to other industrial furnaces, the liquid or gas flowing within the furnace tubes of a tubular heater is typically high-temperature, high-pressure, flammable, and explosive hydrocarbons; most heated mediums tend to coking within the tubes; precise control of the 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 with stringent operating conditions; and requires continuous long-term operation. Therefore, the tubular heater holds a pivotal position in oil refining and petrochemical production.
Selection Requirements for Tubular Heating Furnaces: Tubular heating furnaces for oil refining and chemical industry are customized equipment. Therefore, the manufacturing of the heating furnace is tailored based on the construction drawings or design data sheets, along with relevant technical requirements provided by the customer, ensuring a targeted design, production, supply, and installation to meet the diverse needs of different clients.
The composition of a tubular heating furnace: It mainly consists of five major parts: the radiant chamber, the convection chamber, the waste heat recovery system, the combustion system, and the air supply and exhaust system. Its main auxiliary equipment includes the fan for air supply, the induced draft fan, and the air preheater.
