US3909898A - Method and apparatus for manufacturing a helically finned heat exchanger - Google Patents

Method and apparatus for manufacturing a helically finned heat exchanger Download PDF

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Publication number
US3909898A
US3909898A US529445A US52944574A US3909898A US 3909898 A US3909898 A US 3909898A US 529445 A US529445 A US 529445A US 52944574 A US52944574 A US 52944574A US 3909898 A US3909898 A US 3909898A
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US
United States
Prior art keywords
spine fin
fin material
heat exchanger
base tube
tube member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US529445A
Other languages
English (en)
Inventor
Robert E Hicks
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co
Original Assignee
General Electric Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
Priority to US529445A priority Critical patent/US3909898A/en
Application granted granted Critical
Publication of US3909898A publication Critical patent/US3909898A/en
Priority to GB49438/75A priority patent/GB1510688A/en
Priority to IT29914/75A priority patent/IT1051803B/it
Priority to DE2554140A priority patent/DE2554140C2/de
Priority to ES443134A priority patent/ES443134A1/es
Priority to MX162314A priority patent/MX148503A/es
Priority to BR7508068A priority patent/BR7508068A/pt
Priority to JP50143407A priority patent/JPS5183061A/ja
Priority to US05/737,833 priority patent/US4051586A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/22—Making finned or ribbed tubes by fixing strip or like material to tubes
    • B21C37/26—Making finned or ribbed tubes by fixing strip or like material to tubes helically-ribbed tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/34—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely
    • F28F1/36—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely the means being helically wound fins or wire spirals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1084—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing of continuous or running length bonded web
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49377—Tube with heat transfer means
    • Y10T29/49378—Finned tube
    • Y10T29/49382—Helically finned
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49789—Obtaining plural product pieces from unitary workpiece
    • Y10T29/49798—Dividing sequentially from leading end, e.g., by cutting or breaking
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5176—Plural diverse manufacturing apparatus including means for metal shaping or assembling including machining means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53113—Heat exchanger

Definitions

  • ABSTRACT A method and apparatus for the manufacture of a continuous heat exchanger tube including helically winding a spine fin material on the outer wall of a base tube member. A preselected portion of the spine fin material is secured against movement relative to the base tube member. The heat exchanger is then severed in the secured portion so that a section of the secured portion is arranged at each end of the severed heat exchanger. The secured severed end sections are effective in maintaining the intermediate portion of the spine fin material from unwinding and, as a result, in heat transfer relationship with the base tube memher.
  • This invention relates generally to the provision for manufacturing a continuous heat exchanger tube including helically winding a spine fin material formed to include a flange which is arranged in intimate contact with the outer wall of a base tube member and, more specifically, to the provision of securing a preselected portion of the spine fin material against movement relative to the base member.
  • the heat exchanger is severed in the secured portion so that a section of the secured portion is arranged at each end of the cut length of each heat exchanger.
  • the secured end sections arranged on each end of the heat exchanger are effective in maintaining the intermediate portions of the spine fin material in its original helically wound position.
  • spine fin heat exchangers In the manufacture of spine fin heat exchangers, it has been customary to use spine fin material of dissimilar metal than the base tube member, for example, the spine fin material has been fabricated of aluminum, while the base tube member has been copper. This use of dissimilar metals has resulted in galvanic corrosion of the relatively thin spine fin material. To overcome the problem of the galvanic corrosion and the resultant loss of spine fin material, an adhesive material has been applied between the flange of the spine fin material and the outer wall of the base tube member in amounts sufficient to prevent direct contact between the aluminum and copper to prevent galvanic corrosion, while at the same time maintaining adequate heat transfer between them.
  • a method and apparatus for manufacturing from a continuous heat exchanger a predetermined length of spine fin heat exchanger having a spine fin material helically wound on a base tube member and being secured at each end of the predetermined length.
  • the spine fin material is wound on the base tube member as it is being advanced at a preselected speed so that the spine fin material is in intimate contact with adjacent wraps and the outer wall of the tube member.
  • a preselected portion of the spine fin material at spaced intervals on the spine fin heat exchanger are secured against movement relative to the base tube member.
  • the spine fin heat exchanger is severed in the secured portion to form the predetermined lengths of the heat exchanger with the secured cut portions forming end por tions that are held against movement relative to said base tube member and that are effective to maintain the intermediate portion of the spine fin material in its initial helically wound position.
  • FIG. 1 is a schematic view of an apparatus for fabricating a heat exchanger in accordance with one embodiment of the invention
  • FIG. 2 is a schematic view of the heat exchanger formed according to the preferred embodiment of the present invention.
  • FIG. 3 shows a heat exchanger fabricated in accordance with another embodiment of the invention.
  • FIG. 4 shows a heat exchanger fabricated in accordance with still another embodiment of the invention.
  • a continuous spine fin heat exchanger 10 of the type having a continuous spine fin material 12 is helically wound on a base tube member 14.
  • the details of construction of an automatic machine 16 that may be employed in fabricating the present invention is shown and described in US. Pat. No. 3,005,253Venab1es, assigned to the General Electric Company, the assignee of the present invention.
  • a suitable base tube member 14 is fed vertically upward by feeding means 18 through the machine 16.
  • a rotating support table 20 is arranged for rotation about a vertical axis.
  • the table 20 carries a coil of sheet stock 21 which is fabricated into the spine fin material 12 as well as the fin wrapping and forming assembly 22.
  • the tube base member 12 is fed through an axial passage in the rotating support table 20 and past the fin wrapping and forming assembly 22.
  • the forming assembly includes means for bending the strip stock to form a base flange 24 and for lancing the strip to form fin sections 25.
  • the wrapping assembly includes means for helically winding the spine fin material 12 onto the base tube member 14 as it advances through the machine 16 under tension so that the base flange 24 is in intimate heat transfer contact with outer tube wall.
  • the fabricated spine fin heat exchanger 10 is cut into predetermined lengths 1 1 to be formed into condensors or evaporators to be used in refrigeration systems.
  • the means for severing the heat exchanger may include a cutting or severing station 27 that may be activated after the heat exchanger 10 reaches a predetermined length.
  • a cutting or severing station 27 that may be activated after the heat exchanger 10 reaches a predetermined length.
  • a method and apparatus are provided by the present invention to secure preselected portions of spine fin material 12 against movement relative to the base tube member 14.
  • the preselected portions of the heat exchanger 10 of the spine fin material 12 that is secured against movement relative to the base tube member 14 is designated A.
  • Control or sensing means 26 may be provided at a convenient location to accurately control the length of portion A and the distance between them and to activate the cutting station 29 so that the heat exchanger 10 is severed substantially at the midpoint of portion A. While it is critical to the present invention that the heat exchanger 10 is cut within the portion A, the exact location or construction of the control or sensing means 26 for activating the cutting station 29 may be optional.
  • control or sensing means 26 has been shown schematically at the inlet or tube receiving end of the machine 16. Referring to FIG. 2, it will be apparent that the severed sections of portion A form the end portion of each cut section 11 of heat exchanger 10 wherein the spine fin material 12 is secured against movement relative to the base tube member 14. The secured portions A at each end of the cut heat exchanger are effective in maintaining the tension wrapped intermediate portion of spine fin material designated B in FIG. 4 in its initial helically wound heat transfer position.
  • the means for securing the portion A against movement relative to the tube 14 may be a coating of adhesive 27 applied to preselected sections of the tube as it advances through the machine.
  • the adhesive may be applied by a dispensing means 28 arranged between the feeding means 18 and the forming assembly 22.
  • the dispensing means 28 may be activated by the control means 26 which, in turn, may monitor the advancing tube 14.
  • the dispensing means 28 under control of means 26 cffectively applies adhesive 27 to the base tube 14 at preselected intervals and for a predetermined length to provide portion A so that the spine fin material 12 engaging the adhesive is secured against movement relative to the base tube 14.
  • only the spine fin material 12 arranged in the portion A of the heat exchanger 10 is secured to the base tube member 14 which as hereinbefore noted is effective in maintaining the portion B in its original helically wound position.
  • the cutting station 29, while shown arranged in close proximity to the machine 16, may be located in other convenient locations, and like the dispensing means 28, the cutting station 29 may be activated by the control means 26. While it is not critical in what manner the station 29 is activated, it is, however, necessary as previously explained that the heat exchanger 10 be severed in the secured portion A to form the lengths 11.
  • the means for securing the spine fin material 12 relative to the base tube member 14 in portion A employs the use of an adhesive or bonding material that is applied over the spine fin material 12 after the forming and wrapping operations.
  • a sufficient amount of adhesive is applied so that the spine fins of adjacent wraps are encapsulated or joined together as one unit so that the unwinding of severed or cut end of portion A is prevented.
  • means for securing the spine fin material 12 relative to the base tube member 14 in portion A includes deforming the fin sections 25 of adjacent wraps of the spine fin material so that they interlock together to form a unit effective in preventing the unwinding of the severed or cut end of portion A.
  • Method of manufacturing a continuous spine fin heat exchanger tube including a spine fin material supported on a base tube member which comprises:
  • An apparatus for manufacturing a continuous spine fin heat exchanger tube including a spine fin material supported on a base tube member which comprises:
  • means securing said preselected portion of said spine fin material includes means for applying adhesive to said base tube member in said preselected portionprior to wrapping the spine fin material on said tube base member.
  • the means securing said preselected portion of said spine fin material includes means for depositing an amount of adhesive sufficient to bond adjacent wraps of said spine fin material in said portion prior to severing said heat exchanger into predetermined lengths.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Geometry (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
US529445A 1974-12-04 1974-12-04 Method and apparatus for manufacturing a helically finned heat exchanger Expired - Lifetime US3909898A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
US529445A US3909898A (en) 1974-12-04 1974-12-04 Method and apparatus for manufacturing a helically finned heat exchanger
ES443134A ES443134A1 (es) 1974-12-04 1975-12-02 Mejoras en la fabricacion de tubos contiguos de aletas de espina para cambiadores termicos.
DE2554140A DE2554140C2 (de) 1974-12-04 1975-12-02 Verfahren und Vorrichtung zum Herstellen eines Rippenrohres für Wärmetauscher
IT29914/75A IT1051803B (it) 1974-12-04 1975-12-02 Alettatura frastagliata di alluminio per tubi
GB49438/75A GB1510688A (en) 1974-12-04 1975-12-02 Manufacture of heat exchangers
MX162314A MX148503A (es) 1974-12-04 1975-12-03 Mejoras en metodo y aparato para fabricar un tubo intercambiador de calor con aletas helicoidales
BR7508068A BR7508068A (pt) 1974-12-04 1975-12-04 Processo e aparelho para a manufatura de um tubo continuo,permutador de calor,de espinha aletada
JP50143407A JPS5183061A (enrdf_load_stackoverflow) 1974-12-04 1975-12-04
US05/737,833 US4051586A (en) 1974-12-04 1976-11-01 Method and apparatus for manufacturing a helically finned heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US529445A US3909898A (en) 1974-12-04 1974-12-04 Method and apparatus for manufacturing a helically finned heat exchanger

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US57988975A Continuation-In-Part 1975-05-22 1975-05-22

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US57988975A Continuation-In-Part 1975-05-22 1975-05-22
US05/737,833 Continuation-In-Part US4051586A (en) 1974-12-04 1976-11-01 Method and apparatus for manufacturing a helically finned heat exchanger

Publications (1)

Publication Number Publication Date
US3909898A true US3909898A (en) 1975-10-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
US529445A Expired - Lifetime US3909898A (en) 1974-12-04 1974-12-04 Method and apparatus for manufacturing a helically finned heat exchanger

Country Status (8)

Country Link
US (1) US3909898A (enrdf_load_stackoverflow)
JP (1) JPS5183061A (enrdf_load_stackoverflow)
BR (1) BR7508068A (enrdf_load_stackoverflow)
DE (1) DE2554140C2 (enrdf_load_stackoverflow)
ES (1) ES443134A1 (enrdf_load_stackoverflow)
GB (1) GB1510688A (enrdf_load_stackoverflow)
IT (1) IT1051803B (enrdf_load_stackoverflow)
MX (1) MX148503A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5067322A (en) * 1990-10-05 1991-11-26 General Electric Company Refrigerator with spine fin evaporator
US5809647A (en) * 1996-07-17 1998-09-22 Kme Schmole Gmbh Process for manufacturing ribbed tubes
US6455804B1 (en) * 2000-12-08 2002-09-24 Touchstone Research Laboratory, Ltd. Continuous metal matrix composite consolidation

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2939597A1 (de) * 1979-09-29 1981-04-02 Ritter Heiztechnik GmbH, 4200 Oberhausen Anlage zur waermegewinnung unter ausnutzung von luft- und sonnenenergie
DE2945282C2 (de) * 1979-11-09 1987-04-23 Elpag Ag Chur, Chur Rohrstück für Wärmeaustauscher
JPS57127521A (en) * 1981-02-02 1982-08-07 Hitachi Ltd Method for winding tube for heat exchanging around main tube
JPS59153520A (ja) * 1983-02-21 1984-09-01 Akaishi Kinzoku Kogyo Kk 円筒形多翼フアンの連続製造法
JPS62168622A (ja) * 1986-01-22 1987-07-24 Hitachi Ltd ハンプソン式熱交換器のチユ−ブ巻付装置
JPH01173399U (enrdf_load_stackoverflow) * 1989-01-17 1989-12-08

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1216657A (en) * 1916-02-12 1917-02-20 Olof Valfrid Cardell Apparatus for producing ribbed pipes, tubes, or the like.
US1893523A (en) * 1931-11-27 1933-01-10 Internat Banding Machine Compa Cigar wrapper and process of making the same
US2095599A (en) * 1935-02-21 1937-10-12 American Steel & Wire Co Method of making flexible conduits for cable controls
US2151685A (en) * 1936-02-14 1939-03-28 Alfred J Berg Apparatus for and process of making reinforced tubing
US2865424A (en) * 1955-01-27 1958-12-23 Coynco Products Inc Machine for forming finned heat transfer tubes
US3500903A (en) * 1968-03-29 1970-03-17 Arthur H Mcelroy Heat exchange article

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE524552C (de) * 1927-04-27 1931-05-08 Bundy Tubing Co Verfahren zur Herstellung von Rippenrohren
DE1108716B (de) * 1957-05-29 1961-06-15 Gen Electric Rippenrohr mit einem flachen Basisflansch und mindestens einem zu zahlreichen Lamellen aufgeschnittenen Rippenabschnitt und Verfahren zu dessen Herstellung
DE1260421B (de) * 1964-12-28 1968-02-08 Masch Und Appbau Schkeuditz V Verfahren und Vorrichtung zur Befestigung eines Metallbandes bei der Herstellung von Rippenrohren

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1216657A (en) * 1916-02-12 1917-02-20 Olof Valfrid Cardell Apparatus for producing ribbed pipes, tubes, or the like.
US1893523A (en) * 1931-11-27 1933-01-10 Internat Banding Machine Compa Cigar wrapper and process of making the same
US2095599A (en) * 1935-02-21 1937-10-12 American Steel & Wire Co Method of making flexible conduits for cable controls
US2151685A (en) * 1936-02-14 1939-03-28 Alfred J Berg Apparatus for and process of making reinforced tubing
US2865424A (en) * 1955-01-27 1958-12-23 Coynco Products Inc Machine for forming finned heat transfer tubes
US3500903A (en) * 1968-03-29 1970-03-17 Arthur H Mcelroy Heat exchange article

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5067322A (en) * 1990-10-05 1991-11-26 General Electric Company Refrigerator with spine fin evaporator
US5809647A (en) * 1996-07-17 1998-09-22 Kme Schmole Gmbh Process for manufacturing ribbed tubes
US6053209A (en) * 1996-07-17 2000-04-25 Km Europa Metal Ag Process for manufacturing ribbed tubes and ribbed tubes thus manufactured
US6455804B1 (en) * 2000-12-08 2002-09-24 Touchstone Research Laboratory, Ltd. Continuous metal matrix composite consolidation

Also Published As

Publication number Publication date
MX148503A (es) 1983-04-28
BR7508068A (pt) 1977-06-28
IT1051803B (it) 1981-05-20
DE2554140A1 (de) 1976-06-10
ES443134A1 (es) 1977-04-16
DE2554140C2 (de) 1984-12-06
GB1510688A (en) 1978-05-10
JPS5183061A (enrdf_load_stackoverflow) 1976-07-21

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