Project Description
- Product Name: U Longitudinal Finned Tube | Welded Longitudinal Fin Pipe
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A U longitudinal finned tube is a type of heat exchanger tube characterized by U-shaped fins welded or otherwise attached along the length of the tube in a longitudinal (parallel to the tube’s axis) pattern. This design increases the surface area available for heat transfer, making it more efficient than a bare tube. These tubes are commonly used in various industrial applications, including heat exchangers in power generation, petrochemical, and oil & gas industries.
Specifications of U Longitudinal Finned Tube
| Parameter | Specification |
|---|---|
| Type | Longitudinal Finned Tube |
| Tube Material | Carbon steel, Stainless steel, Copper, Titanium |
| Fin Material | Aluminum, Copper, Steel |
| Tube OD | 19–273 mm |
| Tube Thickness | 2.0–15.0 mm |
| Fin Thickness | 0.5–3.0 mm |
| Fin Pitch | 3.0–30.0 mm |
| Fin Height | 8.0–35.0 mm |
U longitudinal finned tube for heat exchanger
U longitudinal finned tube is a special heat exchanger tube characterized by combining U-shaped tubes with longitudinal fins to improve heat transfer efficiency and adapt to specific working conditions.
Structural features of U longitudinal finned tube
U longitudinal finned tube consists of U-shaped heat exchange tubes and longitudinal fins. The U-shaped design allows the tube bundle to expand and contract freely, effectively eliminating temperature difference stress, and is suitable for high temperature, high pressure and large temperature difference occasions. The longitudinal fins increase the heat exchange area and improve the heat transfer efficiency.
U longitudinal finned tube application scenarios
U longitudinal finned tubes are suitable for the following scenarios:
High temperature and high pressure conditions: Due to its good thermal compensation performance and strong pressure bearing capacity, U longitudinal finned tubes can operate stably under high temperature and high pressure environments.
Easy to scale medium: Due to its structure, it is easy to clean and maintain, and is suitable for conditions where the shell-side medium is prone to scaling.
Large temperature difference conditions: The U-shaped design can effectively eliminate temperature difference stress and is suitable for conditions with large temperature difference.
U longitudinal finned tube manufacturing process and material selection
The manufacturing process of the U longitudinal finned tube includes bending the heat exchange tube into a U shape, fixing both ends to the same tube sheet, and the tube bundle can expand and contract freely to avoid thermal stress. In terms of material selection, commonly used metals such as carbon steel, stainless steel, aluminum, copper and their alloys, and even special materials such as graphite and glass.
Analysis of advantages and disadvantages of U longitudinal finned tube
Advantages:
Good thermal compensation performance: Avoid thermal stress damage, suitable for large temperature difference conditions.
High heat transfer efficiency: Longitudinal fins increase heat exchange area and improve heat transfer efficiency.
Easy maintenance: The tube bundle can be withdrawn as a whole, which is convenient for shell side maintenance and cleaning.
Disadvantages:
Complex structure: Compared with other heat exchangers, the manufacture and maintenance of U-shaped longitudinal finned tubes are more complicated.
High cost: Due to its special design and manufacturing process, the cost is relatively high.
