Integral Finned Tubes for Cement Plant

What is integral finned tubes for cement plant?

The Integral Finned Tubes for Cement Plant is most advanced finned tube, which produced by hot rolled from thick-walled seamless steel tubes. Integral finned tubes supplier provides high heat transfer efficiency for waste heat exchanger recovery in cement plants. The thick-walled seamless steel pipe is rolled into the integral finned tube in one process to achieve designed tube thickness, fin height, fin pitch by rolling blades distributed in the circumferential direction at 120° while heated the steel pipe to 900-950℃ by medium frequency induction from 2000HZ to 2500HZ. The finned tube is integral and with the smooth joint surface.

The difference with high frequency welding finned tube

The most widely used finned tubes are made by a high-frequency welding method, they are widely used in waste heat recovery in electric power, metallurgy, cement industry and petrochemical industry. The high-frequency welding finned tube is the production method by finned the steel pipe by steel trip with a certain pressure by using the skin effect and the proximity effect of the high-frequency current to heat the outer surface of the steel strip to the plastic or melting state. Compared with inlaying, brazing finned tube, high-frequency welding finned tube is more advanced in terms of product quality with up to 95% fin weldability, productivity and automation.

Advantages of Integral Finned Tubes for Cement Plants

1.Excellent heat exchange efficiency - The fin and the tube are integrated into one structure, completely eliminating the contact thermal resistance of other forms of finned steel tube which cannot be overcome due to the two-body structure of the fin and the tube, and the longitudinal section of the fin has a trapezoidal structure, so the maximum improvement of fin heat exchange efficiency can be made.

2.Heat exchange surface extended - The heat transfer coefficient of the tube bundle is 2 times bigger than the high-frequency welded finned tubes with the same tube wall thickness under the same working conditions.

3.Excellent reliability - As the fin and the pipe are integrated into one structure results suitable working high temperature and harsh working environment where the circumstance of fin break off from the tube is easy occurred.

Integral Finned Tubes for Cement Plant Application

Widely used in power station boilers, waste heat boilers, ships, steel, petroleum, chemical, refrigeration, HVAC and other industrial and civil heat exchange fields. 

Features of Integral Finned Tubes for Cement Plants

1. Long service life, up to three times that of a high-frequency finned tube.

2. Smooth joint surface eliminates ash and slag accumulation, which is easily produced by the finned tube at the root of the fin.

3. Integrated fin and tube as an integral whole, due to the hot rolling process, which improves metal structure density, yield strength, tensile strength, and wear resistance.

4. Superior pressure bearing capacity - The integral finned tube is three times stronger in pressure bearing than other finned tubes with the same wall thickness.

5. Excellent pressure bearing capacity - The integral finned tube is more than three times stronger in pressure bearing than other finned tubes with the same wall thickness.

6. Excellent wear resistance solves the problem of high convective heating surface of coal-fired boiler due to high wind speed and high ash concentration. (especially circulating fluidized bed boilers).

Integral Finned Tubes for Cement Plant