Integrated or integral comb fin tube flue gas desulfuration short
fin pitch anti abrasive less dust
Quick Details:
1. Extrude forming process
2. Higher heat transfer ability comparing to HF welding and Wrapped
fin tube
3. Save cost and assembling space due to higher efficiency
Process Flow:
1. Order raw material based on customers' request.
2. Inspection on raw material when arrived
3. Extrude forming the fin tube, while monitoring the whole process
4. Cut into customized length
5. Inspection on specification of finned tube
6. If required, we provide de-fin process, soft annealing, bending
and coiling, welding connectors
7. Clean procedure, pressure test, drying and packing
Finned tube:
The finned tube provide by us is Extruded Type, which is different
from the ones through H-type Welding and Wrapping method. The fins
are obtained by extrude forming the outer surface of a soft
seamless plain tube. The technology simply squeezes the wall
thickness transforming into straight fins on the tube. So the fin
and the tube are integrated and inseparable, which avoids the heat
resistance between fin and tube, and optimizes heat exchange
efficiency. Based on this structure, the Extruded type can survive
more severe working conditions than other finned tubes. Also it, on
the other hand, shows several unique features such as enhanced
physical structure, resistance to vibration, anti-corrosion
ability, and long service life, etc.
Under this technology, there are two major types of finned tubes
available with us, Single metal tubes and Bimetallic tubes.
Customized finned tube is available. The specification table is
followed below. If required, the fin tube can be made into various
forms after soft annealing process. They can be used for cooling
and heating in a large scale of conditions. For example, coils in
water heater, oil cooler in large machines, heat transfer part in
boiler and heat recovering system, air-conditioning and
refrigeration industry as condenser part or evaporator part, etc.
Specifications:
| NO. | Specification(mm) | OD | Wall thickness |
| 1 | ¢32*3 | 32(33) | 3+0.5 |
| 2 | ¢32*4 | 32(33) | 4+0.5 |
| 4 | ¢38*4 | 38(39) | 4+0.5 |
| 4 | ¢38*5 | 38(39) | 5+0.5 |
| 5 | ¢42*4 | 42(43) | 4+0.5 |
| 6 | ¢42*5 | 42(43) | 5+0.5 |
| 7 | ¢50*6 | 50(51) | 6+0.5 |
Advantage:
1. Optimized inner to outer surface ratio
2. High heat exchange rate
3. Enhanced structure due to the roll forming process
4. Flexible as straight tube or bent or coiled heat exchangers
5. Low heat resistance between fins and tube
6. Strong resistance to shock and thermal expansion and contraction
7. Cost and energy saving due to long service life and high
exchange rate
Applications:
The fin tubes are mainly used in heating(gas-fired boilers,
condensing boilers, flue gas condensers), in mechanical and
automotive engineering(oil coolers, mine coolers, air coolers for
diesel engines), in chemical engineering(gas coolers and heater,
process cooler), in power plants(air cooler, cooling tower), and in
nuclear engineering(uranium enrichment plants).
