Seamless Fin Tube

A fin tube is a tube that has small fins around the outside surface.

These fins act as a filter and a mechanism to transfer heat from the material inside the tube to the outside space or vice versa. Fin tubes are used in applications that require a transfer of heat from a hot fluid to a colder fluid through the tube’s wall.

Grand provide a wide range of fin tubes(carbon, stainless,copper,aluminium,titanio,etc;) are used in heat exchangers (GI4, water and chemically cooled)for various industries such as petroleum, petrochemical, acero, power generation and many more.

Categorías: Etiquetas:

  • Descripción
  • Información detallada
  • Why use finned tubes?
  • Indagación

Referencia del tubo de aleta

Las aletas de acero al carbono están disponibles en carbono, Acero inoxidable, o tubo de cobre. Llame para obtener un tamaño específico si no está en la lista

Tipo Descripción Tubo base
Diámetro exterior. (milímetro)
Especificación de aletas (milímetro)
Paso de las aletas Altura de la aleta Aleta gruesa
Incrustado Tueb de aleta tipo G 16-63 2.1-5 <17 ~0.4
Extruido Metal combinado de un solo metal 8-51 1.6-10 <17 0.2-0.4
Tubo de aleta baja Tubo de aleta tipo T 10-38 0.6-2 <1.6 ~0.3
Tubo de bambú tubo corrugado 16-51 8-30 <2.5 /
Herida Tubo de aleta tipo L/KL/LL 16-63 2.1-5 <17 ~0.4
Cuerda Tubo de aleta de cuerda 25-38 2.1-3.5 <20 0.2-0.5
Tipo U Tubo tipo U 16-38 / / /
Soldadura Tubo de aleta de soldadura HF 16-219 3-25 5-30 0.8-3
Tubo de aleta tipo H/HH 25-63 8-30 <200 1.5-3.5
Tubo de aleta con tachuelas 25-219 8-30 5-35 φ5-20

Según las necesidades del usuario, Podemos producir todo tipo de tubos con aletas de bobinado de tiras de acero y tubos con aletas compuestos de aluminio y acero.

Materiales

Las aletas de acero al carbono están disponibles en carbono, Acero inoxidable, o tubo de cobre. Llame para obtener un tamaño específico si no está en la lista

Le ofrecemos una amplia cartera de materiales y podemos ampliar nuestra oferta en cualquier momento para satisfacer sus necesidades específicas en cuanto a conductividad térmica, Propiedades mecánicas, o resistencia a la corrosión.

  • Tubo base: Acero al carbono, Acero inoxidable, Cobre, Cupro Níquel, Aluminio, Acero aleado
  • Aleta: Acero al carbono, Acero inoxidable, Cobre, Aluminio
  • Anillos: Acero al carbono, Aluminio, Galvanizado en caliente

Why use finned tubes?

Finned tubes are used in applications involving the transfer of heat from a hot fluid to a colder fluid through a tube wall. The rate at which such heat transfer can occur depends on three factors: (1) the temperature difference between the two fluids; (2) the heat transfer coefficient between each of the fluids and the tube wall; y (3) the surface area to which each fluid is exposed. In the case of a bare (unfinned) tubes, where the outside surface area is not significantly greater than the inside surface area, the fluid with the lowest heat transfer coefficient will dictate the overall heat transfer rate. When the heat transfer coefficient of the fluid inside the tube is several times larger than that of fluid outside the tube (for example steam inside and oil outside), the overall heat transfer rate can be greatly improved by increasing the outside surface of the tube. In mathematical terms, the product of heat transfer coefficient for the outside fluid multiplied by the outside surface area is made to more closely match the product of the inside fluid heat transfer coefficient multiplied by the inside surface area.

So the whole concept of finned tubes is to increase the outside surface area of the tube. As an example, a finned tube configuration of 2” (nominal, 2.375” actual) pipe with a ¾” high welded helical solid fin of 12 gauge thickness with 6 fins per inch has an outside surface area of 8.23 sq. ft. per linear foot; whereas the same bare pipe has an outside surface area of only .62 sq. ft. per linear foot. That is a 13X increase in outside surface area. See Design Information for extensive tables of surface areas and fin weights.

“The whole concept of finned tubes is to increase the outside surface area of the tube.”
“In many cases, one finned tube replaces six or more bare tubes at less than 1/3 the cost and 1/4 the volume.”

By increasing the outside surface area of the tube, the overall heat transfer rate is increased, thereby reducing the total number of tubes required for a given application. This reduces the overall equipment size and the cost of the project. In many cases, one finned tube replaces six or more bare tubes at less than 1/3 the cost and ¼ the volume.

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