Daru Electric recommends
The radiant tube heater is a heater used in chemical heat treatment fuel furnaces to isolate the combustion gas from the working chamber. Radiant tubes generally use gaseous fuel, and their material is heat-resistant steel made by casting or welding. The shapes of radiant tubes are diverse, including U-shaped, W-shaped, trident-shaped, etc.; the most commonly used radiant tube is the U-shaped radiant tube, with a fuel nozzle installed at one end and an ejector installed at the other end to draw out the combustion products.
Radiant tube heater first originated in metal heat treatment processes. Gas burns in radiant tubes made of heat-resistant alloy materials. Under a special furnace atmosphere, the radiant heat generated by high-temperature alloy steel tubes is used to indirectly heat the workpiece. The mechanical properties of the heat-treated workpiece are significantly improved.
Applying radiant tube heaters to low-temperature heating or building heating is a new development in gas combustion technology in recent years. Based on the successful development of combustion safety and control technology, it has been widely used abroad as overhead radiant heating because it is simpler, more flexible, and more economical than traditional steam or hot water heating.
Working Principle
Radiant tubes used for low-temperature heating or building heating are usually made into a structurally robust long tube type. The heater principle is shown in Figure 1.
Note: The above information and technical parameters are compiled and published by Yangzhou Daru Electric Co., Ltd.
