The tubular heater is a crucial heating equipment used in the petroleum refining, petrochemical, coal chemical, fertilizer, and chemical fiber industries. It has become the heart of heating, cracking, and conversion reactions in processes such as crude oil, coal tar, asphalt, ethylene, gasoline-diesel, and lubricating oil hydrogenation. It plays a significant role in the overall production quality, yield, energy consumption, and safe long-term operation of the plant. Its function in the production process is to utilize the high-temperature flame and gas energy produced by fuel combustion within the furnace to heat the high-speed flowing material (liquid, gas, or oil-gas mixture) in the furnace tubes, reaching 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 is typically high-temperature, high-pressure, flammable, and explosive hydrocarbons; most heated media are prone to coking within the tubes; precise control of the furnace and material temperatures is required; heating is achieved through direct flame contact; the primary fuel is flammable and explosive liquid or gas; it poses high risks with stringent operating conditions; and it requires continuous long-term operation. Therefore, the tubular heater holds a pivotal position in the refining and petrochemical production process.
Selection Requirements for Tubular Heating Furnaces: Oil refining and chemical industry tubular heating furnaces are customized equipment. Therefore, the manufacturing of the heating furnace is tailored to meet specific design, production, supply, and installation based on the customer-provided construction drawings, design data sheets, and relevant technical requirements, thereby catering to 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 blower, the induced draft fan, and the air preheater.
