YUHONG GROUP - Types of Finned Tubes Used in Coal Savers

Finned tubes are an integral part of the economiser, improving heat transfer efficiency and contributing to the overall performance of an industrial boiler system. A variety of finned tubes are used, each with unique features and benefits that can be customised to suit specific application requirements. Below are some common types:

1. Extruded finned tube:
Extruded finned tubes are formed by extruding fins from the base tube material. This manufacturing process ensures a strong bond between the fins and the base tube, resulting in excellent heat transfer efficiency and mechanical stability. Extruded finned tubes are well suited for high

2. welded finned tubes:
Welded finned tubes have fins welded to the outer surface of the base tube. This method of construction provides flexibility in selecting different materials for the fins, making them suitable for corrosive environments or applications requiring specific material properties. Welded finned tubes are robust and can withstand high pressure conditions.

3.L-Fin Tubes:
The fins of L-finned tubes are spirally arranged along the length of the base tube to form an ‘L’ shape. This design maximises the surface area for heat transfer and improves efficiency while maintaining structural integrity. l-fin tubes are commonly used for their excellent heat transfer properties and resistance to fouling.

4.G-finned tube:
Coal economiser G-finned tubes have ‘G’ shaped fins to improve turbulence and heat transfer efficiency. the unique design of G-finned tubes promotes optimum heat exchange, making them suitable for applications where maximum thermal performance is required.

5. H finned tube:
Coal Saver H finned tubes have fins arranged in a double row pattern similar to the letter ‘H’. This configuration provides a larger heat transfer surface area and higher heat exchange efficiency. h-fin tubes are commonly used in economiser tubes because of their superior performance in optimising energy use and reducing fuel consumption.

Each type of finned tube offers distinct advantages in terms of heat transfer efficiency, mechanical strength and compatibility with different operating conditions. By choosing the right configuration of finned tubes, companies can optimise the performance and reliability of their tubes, thus contributing to cost savings and operational excellence in industrial processes.