dtfinnedtube.com
What is an aluminum finned tube?
Aluminum finned tube is a component that enhances heat transfer by machining fins on the outer surface of aluminum tubes. It is widely used in industrial cooling, air conditioning and refrigeration.
Basic structure of aluminum finned tube
It consists of an aluminum tube base and fins. The fins are usually made of aluminum and fixed to the outer surface of the base tube by welding, expansion or mechanical connection. The fins have various shapes, such as straight, corrugated, serrated, etc., to increase the heat exchange area and promote fluid disturbance.
Working principle of aluminum finned tube
The heat is transferred to the fins through the fluid in the base tube, and then the fins transfer the heat to the surrounding fluid. This structure uses the principles of heat conduction and convection heat transfer to improve efficiency.
Performance characteristics of aluminum fin tubes
Material advantages: Aluminum is light and has good thermal conductivity, suitable for high temperature and high pressure environments;
Structural characteristics: The fin design enhances heat exchange efficiency and has strong corrosion resistance;
Application scenarios: Suitable for industrial fields such as boilers, electricity, and metallurgy.
The manufacturing process of aluminum fin tubes includes extrusion, rolling and other forming methods, among which aluminum extruded fin tubes are composited with aluminum tubes and steel tubes to improve strength and heat resistance.
Aluminum finned tubes include aluminum extruded finned tubes, aluminum L/LL/KL wound finned tubes, aluminum G Type embedded finned tubes, integral aluminum finned tubes, aluminum longitudinal finned tubes, etc.、
What is aluminum extruded finned tube?
Aluminum extruded finned tubes are a heat exchange element that is made by compounding aluminum tubes with steel tubes or stainless steel tubes through an extrusion process, and are mainly used to enhance heat transfer performance.
Structural characteristics of aluminum extruded finned tubes
Aluminum extruded finned tubes are compounded by aluminum tubes and metal base tubes (such as steel tubes and stainless steel tubes) through a rolling process. The aluminum tubes are extruded to form a fin structure that fits tightly with the outer wall of the base tube. This structure combines the thermal conductivity of aluminum and the mechanical strength of metal base tubes, and is suitable for high temperature, high pressure and corrosive environments.
Performance advantages of aluminum extruded finned tubes
High temperature resistance: It will not melt or break in a high temperature environment, and is suitable for high temperature conditions in the industrial field.
High heat transfer efficiency: Improve heat transfer performance and reduce thermal resistance by increasing surface area.
Corrosion resistance: The surface coating uses anti-rust paint or silver powder, which is safe, harmless and corrosion-resistant.
High mechanical strength: The combination of aluminum and metal base pipe makes the overall structure more durable and not easy to deform under long-term hot and cold conditions.
What is aluminum L/LL/KL wrapped finned tube?
Aluminum L/LL/KL wrapped finned tubes are heat exchange elements used to enhance heat transfer. They achieve efficient heat dissipation by wrapping aluminum fins around the outer surface of the base tube.
Structure and process of aluminum L/LL/KL wrapped finned tubes
L type: The aluminum fins are folded into an L shape and spirally wrapped around the outside of the base tube. The root completely covers the outer surface of the base tube. It has good corrosion resistance and a maximum operating temperature of 170°C.
LL type: The design is optimized based on the L type to further enhance corrosion resistance. The maximum operating temperature can reach 170°C.
KL type: The outer surface of the base tube is first knurled, and the root of the fin is rolled again after the fin is wrapped to strengthen the bonding effect. The maximum operating temperature can reach 250℃.
Performance characteristics of aluminum L/LL/KL wrapped fin tubes
The fins and base tube are tightly combined through the knurling process to reduce contact thermal resistance and improve heat transfer efficiency.
Aluminum is light and has excellent thermal conductivity, suitable for high temperature and corrosive environments.
The KL type has enhanced mechanical strength due to the knurling process and can withstand repeated hot and cold cycles without loosening.
What is aluminum G-type embedded fin tube?
Aluminum G-type embedded fin tube is a component that improves heat transfer efficiency by embedding aluminum fins on the outer surface of a steel tube. It is mainly used for enhanced heat transfer scenarios. The base tube is mostly made of metal materials such as carbon steel and stainless steel, and the fins are made of aluminum (such as 1060 そして 1100 series aluminum).
Structure and processing technology of aluminum G-type embedded fin tubes
This product mechanically grooves the outer surface of the steel tube, embeds the aluminum fins into the grooves and fixes them, ensuring that the fins are in close contact with the base tube to increase the heat exchange area. This process can enhance thermal conductivity, especially suitable for high temperature, high pressure or corrosive environments.
