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مقدمه :

فین عبارت است از پره های بسیار نازک از جنس آلومینیوم ، مس ، برنج ، کاربن استیل ، گالوانیزه و یا استینلس استیل که بر روی لوه های انتقال حرارت مونتاژ میگردد.

فین باعث ازدیاد سطح تبادل شده و سرعت انتقال را افزایش میدهد .

اصولا” همه رادیاتورها ، مبدلها ، کندانسور ها و همه تجهیزاتی که با هوا ( خنک و یا گرم میشوند ) بوسیله فین تیوب ساخته شده اند .

برای رسیدن به بهترین راندمان انتقال انرژی در طول سالیان متمادی بوسیله مهندسین و طراحان این زمینه کاری وبا کسب تجربیات بسیار ، انواع فین ها و در سبک و سیاغ خاص به خود اختراع و تولید شدا است .

بنابرین بر حسب نیاز ما نیز سعی کردیم از آنچه که در بازار کشور های پیشرفته صنعتی تولید و عرضه میشود بهره برده و به تدریج تولیدات خود را بهبود به بخشیم .

هم اینک با پتانسیل موجود قادر هستیم اکثر تولیدات به روز کشورهای صنعتی را در زمینه تولید هر نوع فین و از هر متریال را جزو تولیدات خود داشته باشیم .

لذا شرح عملیات ومتریال و نوع فین های تولیدی این شرکت به شرح ذیل ، جهت اطلاع مشتریان مرقوم است .

انواع فین ها و روش تولید انبوه با استفاده از ماشین آلاتی که یا خود ساختیم و یا از خارج تهیه کرده ایم ما را قادر میسازد تا فین تیوب مورد دلخواه مشتریان را در اسرع وقت تحویل دهیم .

 

General Products & Services

 

Eye sun tahvieh offers customized solutions – quality products and services especially tailored to meet your specific needs in the following categories :

• Turnkey integrated heat transfer systems
• Direct air cooled and indirect condensing plant for steam turbines
• Air cooled finned tube heat exchangers for any application
• Large variety of finned tubes
• Shell tube heat exchangers
• Feed water heaters and condensers for power stations
• Coolers for generators, motors, compressors & engines
• Heat recovery, energy saving systems
• Waste heat boilers
• Cooling towers – natural & mechanical draft, combined wet/dry (hybrid) and standardized
• Environmental technology
• Design Engineering: In-house design, engineering and optimization of all heat exchange / transfer systems and equipment

Extruded Fin Tubes

Extrude fined tubes are formed in a cold rotary extrusion process, where continuous helical fins are radially extruded from a thick aluminum muff over a liner tube. The process of extrusion hardens the fins and prevents dissimilar metal contacts at the fin root. Compared to other products, fins do not break, unwind or become loose which affects greatly thermal efficiency. The fin offers a wide range of extruded fin tubes. Our standard liner tube O.D’s are: The fin height can vary from .25″ (6.35mm) to .5625″ (15.05mm) and come with 7, 9, or 11 fins per inch. Other fin heights are available upon request.

Product size: .۶۲۵″ (۱۵٫۸۷mm) .۷۵″ (۱۹٫۰۵mm) .۸۷۵″ (۲۲٫۲۲mm) ۱″ (۲۵٫۴mm) ۱۱/۴″(۳۲mm) Other sizes are available upon request. No galvanic corrosion at the base of the fins; Strong rugged fins very easy to clean without bending them; Higher heat transfer performance for the life of the unit; Can ship cut to length and stripped at both ends; Bell end.

Extrude finned tubes

 

Rectangular fin

Hot Dipped Galvanized Elliptical Tubes with Rectangular Fin Application: This finned tube is optimally shaped and has excellent thermodynamic properties. The fin collar forms a permanent metallic bond with the tube. Corrosion resistance is excellent, thanks to hot-dip galvanizing, which produces a protective, self-healing, outer-layer. The design is compact, resulting in a small heat exchanger bundle face area. Maximum Operating Temperature: ۳۵۰°C Manufacture: The fins are first punched out and then lined up automatically on the tube. The end fins are fixed. Integrated spacers in the fins maintain the desired gap between adjacent fins. The use of a specially developed hot-dip galvanizing bath produces the best possible metallic fin-to-tube bond and results in excellent heat transfer and mechanical properties. Fin Material: Steel (galvanized). Base Tube Material: Steel (galvanized).

Double L fin (LL fin ) & L fin

Double L Fin (LL Fin Double L Fin (LL Fin) & L Fin) & L Fin Application:Standard fin for low-temperature applications where some degree of tube wall protection is required. Maximum Operating Temperature: ۱۲۰°C Manufacture: The fin foot is pre-formed into an L shape and applied to the base tube under tension. Each fin abuts an adjacent fin, giving a degree of protection to the base tube in less aggressive environments. Fin Material: Aluminium/copper. Base Tube Material: Any metallic material.

Embedded fin tube

 

G Fin (Embedded or Grooved Fin) Application:High-efficiency fin for high temperature applications. Maximum Operating Temperature: ۴۰۰°C Manufacture: A helical groove is formed in the base tube without removing any material and the fin is then wound into the groove under tension, followed by backfilling and knurling of the displaced material to lock the fin root into the tube. Fin Material: Aluminum/copper/stainless steel. Base Tube Material: Any readily machinable material.

serrated fin tube

 

Extrude serrated fin tube The heat transfer coefficient is 10-15% higher than the solid type. Serrating causes turbulence in the gas flow increasing the heat transfer coefficient and allows manufacturing of more compact equipment. These features also result in reduced costs.

 

 

 

High Frequency Helical Serrated Finned tube This Fin produces Welded Finned Pipe and Tubes in many different diameters and fin configurations and metal combinations to meet your heat transfer needs. Tube Sizes: ۳/۴″ O.D. to 8″ NPS (8.625″ O.D.) Fin Heights: ۳/۸″ to 1 ½” Fin Thicknesses: ۲۰ ga. (.035″) to 12 ga. (.102″) Fin Pitch: ۱ to 7 fins per inch Material: Any material or combination that can be resistance or arc welded.

 

Turbulators Tex-Fin turbulators are spiral strips that can be easily installed to promote turbulence within the tube and enhance heat transfer of certain viscous fluids. Turbulators are available in carbon steel, stainless steel, aluminum, copper and nickel alloys