Studed Tube (Nail head pipe)
Studed Tube (Nail head pipe)
1. Definition
Studed Tube (Nail Head Pipe) is a pipe material with a reinforced structure formed by nailing metal nails on the surface of the pipe. Its structural appearance is like the head of a nail, so it is named "Studed Tube".
2. Structure
Studed Tube is a pipe material in which one or more metal nail heads pass through the sheath of the base material and connect to the metal pipe shell. This structure can increase the surface area of the pipe, increase the thermal conductivity coefficient and strength of the pipe, and improve the thermal conductivity efficiency of the pipe.
3. Material
The base material and nail material of the Studed Tube (Nail Head Pipe) are usually aluminum or galvanized steel pipe.
4. Application
Studed Tube is mainly used in heat transfer equipment such as heat exchangers, air generators, and air conditioners. Fixing nails on the surface of the pipe can improve the pressure bearing capacity, wind resistance and corrosion resistance of the pipe, and at the same time increase the friction of the pipe to the heat transfer medium, thereby improving the heat transfer efficiency.
2. Finned tubes
1. Definition
Finned tubes are a type of pipe material formed by welding or rolling metal sheets on a metal tube shell. Its cross section is polygonal or flat and serrated.
2. Structure
Finned tubes are composed of one or more metal fins arranged in multiple rows around the surface of the pipe at a certain angle. The fins and the tube shell are connected by brazing, aluminum brazing and electroslag welding to form an integral structure.
3. Materials
The base material and fin materials of finned tubes are usually copper, aluminum, steel, stainless steel, copper-nickel alloy and other materials. Among them, aluminum alloy finned tubes have become a more commonly used material due to their good corrosion resistance and thermal conductivity.
4. Application
Finned tubes are mainly used in air conditioning, HVAC equipment, cooling equipment, etc., by increasing the surface area of the pipe to improve the heat transfer efficiency of the pipe. At the same time, finned tubes can also increase the strength and rigidity of the pipe, and improve the pressure resistance and corrosion resistance of the pipe.
3. Differences between nail head tubes and finned tubes
1. Structural differences
Nail head tubes are fixed to the surface of the pipe with nails to increase the surface area of the pipe; finned tubes are welded or rolled metal sheets to form multiple rows of fins arranged on the surface of the pipe.
2. Different application areas
Nail head tubes are mainly used in heat transfer equipment such as heat exchangers, while finned tubes are mainly used in air conditioners, HVAC equipment, cooling equipment, etc.
3. Different materials
The base material and nail materials of nail head tubes are usually aluminum or galvanized steel pipes; the base material and fin materials of finned tubes are usually copper, aluminum, steel, stainless steel, copper-nickel alloy and other materials.
