Ekstruderet finnerør

Ekstruderet finnerør rulles som en integritet uden termisk kontaktmodstand, høj intensitet, fremhævet i termisk stød og mekanisk stødmodstand. Varmevekslere samlet med denne type finrør (Ekstruderet finnetype) er meget bedre end den, der er udstyret med strengfinnerør eller hektisk viklede finnerør (L/LL/KL type fin).

Ekstruderede finnede rør, også kendt som "Integral Finned Tubes". Integrerede finnede rør fremstilles ved valseproces på rør. Under finning, Rørets indvendige diameter reduceres, og spiralformede finner rulles på rørvæggen. Rørmaterialet kan være kobberlegering, Messinglegeringer, Kobber nikkel legering, Titanium legering, Rustfrit stål, Duplex rustfrit stål osv. Det tryk, der kræves for at ekstrudere finner fra aluminiumsbøsningen, skaber en fremragende "trykbinding" mellem de to materialer.

Kobber- og aluminiumkompositerede finnerør rulles fra et muffekobberrør, Fordelagtigt i tæt link, lille termisk modstand, god varmeoverførselseffektivitet, lille flowtab og stærk korrosionsbestandighed. Når du arbejder i lang tid under opvarmnings- og køleforhold, De er holdbare og ikke lette at deformere.

De integrerede ekstruderede finnerør er glatte på overfladen og nemme at rengøre. Ved vådkøling i varme- og klimaanlæg projekt, Det er let at fjerne kondensvandet på finnens ydre overflade, Og det er ikke let at støve og skalere i opvarmning og anden varmeveksling.

  • Beskrivelse: __________
  • Produkt detaljer
  • Undersøgelse

Extruded Finned Tubes Product Range

Ekstruderede finnede rør, også kendt som "Integral Finned Tubes". Integrerede finnede rør fremstilles ved valseproces på rør. Under finning, Rørets indvendige diameter reduceres, og spiralformede finner rulles på rørvæggen.

Integral Low Finned Tubes

  • These have fin height less than or equal to fin pitch.
  • Tube Length: Up to 32 meter.
  • Outside Diameter OD: Between 9.52 mm and 38.10 Mm.
  • Tube Wall Thickness WT: 0.58 Mm (min.) and above.
  • Fins per Inch: 11, 16, 19, 23, 26, 30, 40 og 52 FPI.
  • Available in ferrous and nonferrous materials Copper Alloys, Copper-Nickel alloy, Admiralty Brass Alloy C44300, Aluminum Brass Alloy C68700, Carbon Steel.

Integral Medium High Finned Tubes

  • Fin height more than fin pitch.
  • Tube Length: Up to 32 meter.
  • Udvendig diameter: Between 19.05 mm and 31.75 Mm.
  • Tube wall thickness: 2.1 Mm (min.) and above.
  • Fins per Inch: 11, 16 og 19 FPI.
  • Available in ferrous and nonferrous materials.

Low Finned U Bend Tubes

  • Manufactured on in-house finned tube bending facility.
  • Easy to install in the equipment maintaining the circulation ratio.
  • Absorb thermal shocks in heat exchanger.
  • Available in Copper Alloys, Copper-Nickel alloy, Admiralty Brass Alloy C44300, Aluminum Brass Alloy C68700, Carbon Steel, 304 and 304L Stainless Steel ranging from 30R to 710R.

Low finned tubes with internal rib

  • Externally enhanced surface area with integrally helical ribs on the inner side.
  • Improved inside heat transfer coefficient.
  • Available in Copper, Kobber nikkel legering, Carbon Steel with externally 19, 26 fins per inch and internally 8, 10 Ribs.

Low Finned Tubes Coils

  • Manufactured by coiling the integral finned tube.
  • Improved heat transfer area therefore compact size of heat exchangers.
  • Available in Copper, in coil diameters as per user’s requirement (Min Coil ID 50 Mm).

High Finned Tubes

  • High Finned Tubes have extruded fin heights up to 0.625″ (16Mm). Single metal and bi-metallic finned tubes are available. Bi-metal finned tubes have a separate alloy liner tube inside the extruded fins. The mono-metal finned tubes have no liner tube with the fins integral with the tube.

Corrugated Tubes

  • Manufactured by corrugation process of indenting plain tube with smooth and uniform spiral projections, which generate turbulence in both outside and inside media.
  • Higher turbulence ensures uniform temperature distribution.
  • No thinning of tube wall during process of corrugation.

Extruded Finned Tubes Characteristics

  • Heat transfer per meter of tube on the outside is equal to the heat transfer per meter on the inside.
  • The intermediate un-finned section and un-finned sections at both ends help to slip the integral finned tubes in to the tube-sheets of shell and tube heat exchanger in a manner similar to plain tubes.

Extruded Finned Tubes Benefits

  • Combination of lower fin height and more fins per meter maintains the general ratio of 1:1 fin height to fin spacing.
  • Doesn’t require higher tube pitch therefore, doesn’t require shell size higher than shell of bare tube heat exchanger.
  • Improved heat transfer coefficient and rate of heat transfer as compared to conventional finned tube designs.
  • Compact design of heat exchanger having lesser weight and size.
  • Improved tube life.

Extruded Finned Tubes Quality Assurance

  • Compliance with quality standards, ASME SB111, SB-359, SA-213, SA-450 and all codes as per ASME /EN/ JS.
  • Customer / Third Party Inspection TPI.
  • Fin dimensions checking by IMTEs and Profile checking on profile projector.
  • Stress Relief Annealing of non-ferrous fin tube on in-house electric conveyor belt furnace.
  • Stress relief annealing of ferrous fin tubes as per specifications provided if required by client at additional cost.
  • 100% tubes tested for leakages by Hydrostatic Test as per standard and customers requirements.
  • Third Party Inspection can be offered from Lloyd’s, BV, TUV, BHEL, NTPC, Intertek, SGS, EIL, IBR etc. I henhold til kundens krav.

Extruded Finned Tubes Applications

  • HVAC & Kedel
  • Kraftværker
  • Heat Recovery Steam Generators
  • Petrochemical Industries
  • Marine Applications
  • Refrigeration Applications
  • Economizers
  • Oil and Gas Coolers
  • Plumbing and Air Conditioning
  • Condensers and Evaporators
  • Shell and Tube Heat Exchanger
  • Other various Heat exchanger applications

Reference til finnerør

Finner af kulstofstål fås på kulstof, rustfrit stål, eller kobberrør. Ring venligst for en bestemt størrelse, hvis den ikke er angivet

Slags Beskrivelse: __________ Underrør
O.D. (Mm)
Fin specifikation (Mm)
Finneplads Finnehøjde Fin tyk
Integreret G-type finne tueb 16-63 2.1-5 <17 ~0.4
Ekstruderet Enkelt metal kombineret metal 8-51 1.6-10 <17 0.2-0.4
Lavt finnerør t-type finnerør 10-38 0.6-2 <1.6 ~0.3
Bambusrør bølgepap 16-51 8-30 <2.5 /
Sår L/KL/LL TYPE FINNERØR 16-63 2.1-5 <17 ~0.4
Streng Strengfinnerør 25-38 2.1-3.5 <20 0.2-0.5
U-type U-type rør 16-38 / / /
Svejsning HF-svejsefinnerør 16-219 3-25 5-30 0.8-3
Finnrør af H/HH-typen 25-63 8-30 <200 1.5-3.5
Piget finnerør 25-219 8-30 5-35 φ5-20

I henhold til brugernes behov, Vi kan producere alle former for stålbånd vikling finned rør og stål aluminium komposit finned rør.

Materialer

Finner af kulstofstål fås på kulstof, rustfrit stål, eller kobberrør. Ring venligst for en bestemt størrelse, hvis den ikke er angivet

Vi tilbyder dig en bred portefølje af materialer og kan til enhver tid udvide vores sortiment for at imødekomme dine specifikke behov vedrørende varmeledningsevne, mekaniske egenskaber, eller korrosionsbestandighed.

  • Underrør: Kulstofstål, Rustfrit stål, Kobber, Cupro nikkel, Aluminium, Legeret stål
  • Finne: Kulstofstål, Rustfrit stål, Kobber, Aluminium
  • Ringe: Kulstofstål, Aluminium, Varmgalvanisering

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