GB1430690A - Integral finned tube for submerged boiling applications - Google Patents

Integral finned tube for submerged boiling applications

Info

Publication number
GB1430690A
GB1430690A GB3351173A GB3351173A GB1430690A GB 1430690 A GB1430690 A GB 1430690A GB 3351173 A GB3351173 A GB 3351173A GB 3351173 A GB3351173 A GB 3351173A GB 1430690 A GB1430690 A GB 1430690A
Authority
GB
United Kingdom
Prior art keywords
tube
finned
rolling
fins
fin height
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
Application number
GB3351173A
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.)
Honeywell UOP LLC
Original Assignee
UOP LLC
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 UOP LLC filed Critical UOP LLC
Publication of GB1430690A publication Critical patent/GB1430690A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/18—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing
    • F28F13/185—Heat-exchange surfaces provided with microstructures or with porous coatings
    • F28F13/187—Heat-exchange surfaces provided with microstructures or with porous coatings especially adapted for evaporator surfaces or condenser surfaces, e.g. with nucleation sites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes 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
    • B21C37/20—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls
    • B21C37/207—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls with helical guides
    • 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
    • F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
    • 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
    • F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
    • F28F1/422—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element with outside means integral with the tubular element and inside means integral with the tubular element

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

1430690 Making finned tubing UOP Inc 13 July 1973 [14 July 1972] 33511/73 Heading B3A [Also in Division F4] A method of producing a finned heat exchanger tube 10 comprises (a) forming by rolling, integral annular or helical fin convolutions from the material of a plain tube 10, said fins having a plurality of circumferentially spaced zones of reduced fin height and (b) bending the outer portions of all of the fins uniformly so that each convolution has its tip spaced at a small spacing from the side of the adjacent convolution to define therewith partially enclosed spaces 27 entending around the tube. As shown the spaced zones of reduced fin height are in the form of recesses or notches 18 formed either by rolling with a knurling tool longitudinally of the tube or by a cutting or grinding operation: bending of the fins is effected by drawing the finned tube through a suitably dimensioned die. In an alternative embodiment (Figs. 8-11, not shown) the finned tube is formed by advancing a plain tube over a mandrel having one or more helically extending grooves therein, the rolling operation being carried out by a plurality of sets of finning discs. The rolling operation deforms the tube material inwardly into the mandrel grooves thereby producing internal helical ribs in the tube, the fin portions overlying the ribs being of reduced fin height.
GB3351173A 1972-07-14 1973-07-13 Integral finned tube for submerged boiling applications Expired GB1430690A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US27183572A 1972-07-14 1972-07-14

Publications (1)

Publication Number Publication Date
GB1430690A true GB1430690A (en) 1976-03-31

Family

ID=23037289

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3351173A Expired GB1430690A (en) 1972-07-14 1973-07-13 Integral finned tube for submerged boiling applications

Country Status (6)

Country Link
JP (1) JPS5228262B2 (en)
BR (1) BR7305130D0 (en)
ES (1) ES416715A1 (en)
GB (1) GB1430690A (en)
IT (1) IT989820B (en)
ZA (1) ZA734232B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105964695A (en) * 2016-06-12 2016-09-28 黄卫国 Production process for steel-based rolled integral type finned tube

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5238667A (en) * 1975-09-22 1977-03-25 Hitachi Cable Ltd Condensing heat-transmission wall and it's manufacturing method
JPS51118148A (en) * 1975-04-11 1976-10-16 Hitachi Cable Ltd Heating pipe and its production method
JPS5238666A (en) * 1975-09-22 1977-03-25 Hitachi Cable Ltd Condensing heat-transmission wall and it's manufacturing method
JPS5244443A (en) * 1975-10-04 1977-04-07 Hitachi Cable Ltd Excellent heat transmission
JPS538855A (en) * 1976-07-13 1978-01-26 Hitachi Cable Ltd Condensing heat transmission wall
JPS538856A (en) * 1976-07-13 1978-01-26 Hitachi Cable Ltd Condensing heat transmission wall
JPS5359962A (en) * 1976-11-10 1978-05-30 Hitachi Ltd Heat exchaner
JPS5359961A (en) * 1976-11-10 1978-05-30 Hitachi Ltd Heat exchanger
JPS5419247A (en) * 1977-07-12 1979-02-13 Furukawa Metals Co Method of producing heat exchanger tube for boiling type heat exchanger
JPS55160775A (en) * 1979-05-29 1980-12-13 Kaken Pharmaceut Co Ltd Novel minimycin derivative, its preparation, and antitumor agent containing the derivative as effective component
JPS56152476A (en) * 1980-04-30 1981-11-26 Kaken Pharmaceut Co Ltd Novel minimycin derivative

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105964695A (en) * 2016-06-12 2016-09-28 黄卫国 Production process for steel-based rolled integral type finned tube
CN105964695B (en) * 2016-06-12 2017-12-15 臧东生 A kind of production technology of base steel rolling monolithic finned tube

Also Published As

Publication number Publication date
JPS4944348A (en) 1974-04-26
ZA734232B (en) 1974-06-26
ES416715A1 (en) 1976-02-01
JPS5228262B2 (en) 1977-07-26
AU5733773A (en) 1975-01-09
BR7305130D0 (en) 1974-08-15
DE2335306A1 (en) 1974-01-31
IT989820B (en) 1975-06-10
DE2335306B2 (en) 1977-02-24

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee