Internally Finned Tube is a special type of tube commonly used in heat exchangers and cooling equipment. Its internal surface is equipped with fins to improve the efficiency of heat exchange. Compared with ordinary bare tubes, internally finned tubes can effectively increase the turbulence of the fluid in the pipe, thereby improving the heat transfer effect. The design of this pipe is mainly to increase the surface area of the fluid contacting the tube wall and promote the mixing of the fluid, thereby enhancing the heat transfer.

Internally finned tubes are usually made of metal materials, such as stainless steel, 銅, aluminum, etc., and the appropriate material is selected according to different application requirements. Due to the presence of internal fins, internally finned tubes will generate greater resistance when the fluid flows through, so the balance between the flow rate and pressure loss of the fluid needs to be considered during design.

Internally finned tubes are widely used in various industrial and civil fields, including air conditioning systems, refrigeration equipment, petrochemical industry, nuclear power generation, 等. They can be used not only for cooling liquids, but also for heating and evaporation processes, with good adaptability and application prospects.