Studded tubes
Studded tubes (also known as the needle tube) adopt a square or hexagonal arrangement of cylindrical needles welded on the surface of the heat exchange tube in equal parts. The square or hexagonal heat exchange nail head tube is assembled and welded to form a high-efficiency and energy-saving needle tube heat exchange tube group. Because the nail head tube needle rib is a cantilever structure, the structure is compact, and the needle ribs are generated under the impact of airflow. Vibration makes it difficult for soot to accumulate; coupled with the strong turbulent scouring of the flue gas, the nail head tube heat exchange element has high heat transfer efficiency and strong self-cleaning ability.
The nail-head tube set is especially suitable for compact waste heat boilers, oil-fired, gas-fired boilers, and oil heaters. Under the same heat exchange, its weight and overall dimensions have been greatly reduced. Compared with other conventional enhanced heat transfer boiler tubes, the dust prevention performance of the nail-head tube group is greatly improved. When the flue gas temperature is very low, the nail head tube can still recover the waste heat economically and has broad application prospects in heat exchange and energy-saving projects.
