Fin Tube
Finned tubes are heat exchange elements composed of metal tubes and fins. Fins are typically fixed to the surface of the metal tube through methods such as welding, rolling, or winding, forming a series of raised portions; these raised portions are the fins. The main function of finned tubes is to increase the heat exchange area, promote rapid heat transfer, and achieve highly efficient and energy-saving heat exchange.
Finned tubes are made from a variety of materials, including stainless steel, carbon steel, aluminum, and copper. These materials all possess good thermal conductivity and corrosion resistance, meeting the needs of various operating conditions. The shapes of the fins also vary, including straight strips, spirals, V-shapes, W-shapes, and U-shapes. These different shape designs can optimize heat transfer performance according to specific application scenarios.
Fin tube specification
|
Type |
Description |
Base tube |
Fin specification (mm) |
||
|
Fin pitch |
Fin height |
Fin thick |
|||
|
Embedded |
G-type fin tube |
16-63 |
2.1-5 |
<17 |
~0.4 |
|
Extruded |
Single metal combined metal |
8-51 |
1.6-10 |
<17 |
0.2-0.4 |
|
Low fin tube t-type fin tube |
10-38 |
0.6-2 |
<1.6 |
~0.3 |
|
|
Bamboo tube corrugated tube |
16-51 |
8-30 |
<2.5 |
/ |
|
|
Wound |
l/kl/ll type fin tube |
16-63 |
2.1-5 |
<17 |
~0.4 |
|
String |
String fin tube |
25-38 |
2.1-3.5 |
<20 |
0.2-0.5 |
|
U-type |
U-type tube |
16-38 |
/ |
/ |
/ |
|
Welding |
HF-welding fin tube |
16-219 |
3-25 |
5-30 |
0.8-3 |
|
H/HH type fin tube |
25-63 |
8-30 |
<200 |
1.5-3.5 |
|
|
Studed fin tube |
25-219 |
8-30 |
5-35 |
φ5-20 |
|
Advantages of finned tubes:
Simple and economical installation: Reduced connection points make installation more economical and faster, while also reducing the probability of leaks at the connections.
Easy maintenance: Once installed, finned tubes require virtually no further maintenance.
High efficiency: The fins are wound and welded to the steel pipe in full contact, resulting in a heat dissipation area more than 8 times that of a bare tube. The internal surface is smoother, reducing internal water flow resistance.
Long service life: The high mechanical strength of the fin-to-pipe bond, with a tensile strength exceeding 196 MPa, allows for hot-dip galvanizing both the inside and outside of the tube.
Finned Tube Applications
Finned tube heat exchangers are used in almost all industrial sectors:
- Power Industry: Air preheaters and economizers in power plant boilers, utilizing waste heat from flue gas to heat the air needed for combustion, significantly improving boiler efficiency.
- Petrochemical Industry: As a core component of process gas coolers and convection sections of heating furnaces, used to recover high-temperature heat during reaction processes.
- Refrigeration and Air Conditioning: Evaporators and condensers in household air conditioners and central air conditioning systems, key components for achieving refrigeration cycles.
- Metallurgical Industry: Waste heat recovery systems in blast furnace hot blast stoves and rolling mill heating furnaces, used to preheat combustion air and save fuel.
GNEE Finned Tube for sale
Hot Tags: fin tube, China fin tube manufacturers, suppliers, finned tube for industrial waste water treatment, finned tube for heat recovery, finned tube for water systems, finned tube for ozone water systems, finned tube for agricultural waste water treatment, finned tube for distributed energy
Previous
Stainless Steel Fin TubeYou Might Also Like
Send Inquiry