EP0124584B1 - Improvements in or relating to fluid handling apparatus - Google Patents

Improvements in or relating to fluid handling apparatus Download PDF

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Publication number
EP0124584B1
EP0124584B1 EP83903701A EP83903701A EP0124584B1 EP 0124584 B1 EP0124584 B1 EP 0124584B1 EP 83903701 A EP83903701 A EP 83903701A EP 83903701 A EP83903701 A EP 83903701A EP 0124584 B1 EP0124584 B1 EP 0124584B1
Authority
EP
European Patent Office
Prior art keywords
fluid
interrupter
elements
tube
flow
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
EP83903701A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0124584A1 (en
EP0124584A4 (en
Inventor
Richard A. Holl
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.)
Vapor Corp
Original Assignee
Vapor Corp
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 Vapor Corp filed Critical Vapor Corp
Priority to AT83903701T priority Critical patent/ATE33896T1/de
Publication of EP0124584A1 publication Critical patent/EP0124584A1/en
Publication of EP0124584A4 publication Critical patent/EP0124584A4/en
Application granted granted Critical
Publication of EP0124584B1 publication Critical patent/EP0124584B1/en
Expired legal-status Critical Current

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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
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
    • 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
    • F28F13/02—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by influencing fluid boundary

Definitions

  • the fluid flow takes the form of a non-turbulent boundary layer or layers immediately adjacent to the heat transfer source and a non-turbulent core layer interfacing with the boundary layer or layers.
  • An interrupter structure is provided within the flow passage to interrupt in as non-turbulent a manner as possible the said boundary layer or layers at a plurality of spaced interruption spots, whereby parts of the interrupted boundary layer separate from the heat transfer surface and mix with the core layer to effect heat 'transfer between the surface and the core layer.
  • This structure consists of densely-packed convex sphere segments each arranged with a part of its convex surface touching or almost touching the heat transfer surface. Such a structure provides a very high coefficient of heat transfer without a disproportionate increase in the pumping power required to move the fluid through the apparatus.
  • the object of the present invention is to provide a fluid handling apparatus, in particular heat exchange apparatus, in which the contact between the flowing fluid and the adjacent solid surface is further enhanced, whereby in particular the coefficient of heat transfer can be further increased.
  • the structure comprises an axial core element to which the interrupter elements are connected and along which the interrupter elements are spaced.
  • Two subsidiary like end members 26 and 28 are mounted on the respective ends of the central shell member 10 abutting the respective tube sheet assemblies to form respective plenums for the fluid that enters and discharges from the interiors of the tubes 20, and are provided respectively with inlet 30 and outlet 32 for such fluid.
  • the ends of the shell end members 26 and 28 are closed by respective end plates 34 held to the members by respective encircling removable split rings 36 and tensioned band clamps 38.
  • the tube sheet assemblies and the subsidiary members are manner by means of encircling split rings 40 and tensioned band clamps 42, the split rings having radially inwardly extending projections that engage in respective circumferential grooves in the shell members.
  • a fluid flowing within a passage such as a tube 20
  • a boundary layer at the tube inner wall which insulates the wall surface from the main body of the fluid flowing in a core layer interfacing with the boundary layer, the boundary layer therefore reduces the heat transfer between the tube inner surface and the core layer.
  • an unobstructed boundary layer increases progressively in thickness in the direction of fluid flow, which will increase its insulating effect.
  • each interrupter element i.e. where the roots of the blades meet the core rod, there is a maximum of blade surface area relative to the path cross-sectional area for fluid flow through the element, so that the friction drag is at a maximum.
  • the amount of blade material has become substantially zero, so that the friction drag is reduced in relation to the cross sectional area. Because of these differentials in friction and cross sectional area a change of momentum is produced in the fluid as it passes through the element that induces the development of smooth, non turbulent vortices producing rapid and effective mixing of the separated boundary layer and its adjacent core layerfor increase in heat exchange efficiency.
  • the number of blade like members to be provided is a matter of design for each heat exchanger. A practical minimum is three, while for small exchangers (e.g. using tubes of 1.25 cm and less) more than ten would usually result in too great a loss of flow capacity.
  • FIG. 1 to 3 employs a different form of interrupter structure in the fluid path constituted by the space between the shell interior and the tube exteriors, although the above described bladed structure can of course be used.
  • the different structure also consists of a core rod 54, but the longitudinally spaced interrupter elements consist of solid spheres 56 mounted on the rod at the spacing required to provide wake interference fluid flow.
  • These sphere carrying rods for convenience called sphere rods, are disposed around the tube exteriors with these longitudinal axes parallel to the tube axes and with their spherical surfaces in point contact with the adjacent tube surfaces; at some locations the spheres may also touch one another.
  • the entire heat exchanger is readily disassembled by removal of the encircling band clamps 38 and 42 and split rings 36 and 40, when the tube sheet assemblies can be removed and the interrupter assemblies of both types slid out from inside and between the tubes for replacement or cleaning, as may be required. It will be seen that this disassembly and subsequent reassembly can be effected extremely rapidly by unskilled labour using simple tools. The resulting separate parts can easily be cleaned with simple apparatus.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
EP83903701A 1982-11-01 1983-10-18 Improvements in or relating to fluid handling apparatus Expired EP0124584B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83903701T ATE33896T1 (de) 1982-11-01 1983-10-18 Verbesserungen an oder betreffend fluidabehandlungsvorrichtungen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US43830082A 1982-11-01 1982-11-01
US438300 1989-11-16

Publications (3)

Publication Number Publication Date
EP0124584A1 EP0124584A1 (en) 1984-11-14
EP0124584A4 EP0124584A4 (en) 1985-04-25
EP0124584B1 true EP0124584B1 (en) 1988-04-27

Family

ID=23740091

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83903701A Expired EP0124584B1 (en) 1982-11-01 1983-10-18 Improvements in or relating to fluid handling apparatus

Country Status (12)

Country Link
EP (1) EP0124584B1 (xx)
JP (1) JPS59501991A (xx)
AU (1) AU574339B2 (xx)
CA (1) CA1217763A (xx)
DE (1) DE3376449D1 (xx)
DK (1) DK318684D0 (xx)
IN (1) IN160888B (xx)
IT (1) IT1203715B (xx)
MX (1) MX159117A (xx)
NO (1) NO842342L (xx)
WO (1) WO1984001818A1 (xx)
ZA (1) ZA838057B (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29516927U1 (de) * 1995-10-26 1996-02-01 SGL Technik GmbH, 86405 Meitingen Rohr für Wärmeaustauscher mit wirbelerzeugenden Stromstörungselementen

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4545426A (en) * 1984-08-31 1985-10-08 Mobil Oil Corporation Reversing turbulators for heat exchangers
FR2740210B1 (fr) * 1995-10-20 1997-12-12 Peugeot Ensemble pour echangeur de chaleur tubulaire comportant des elements de creation de turbulence et installation d'echange urs de chaleur comprenant cet ensemble
CN102798300A (zh) * 2011-05-24 2012-11-28 哈尔滨工大金涛科技股份有限公司 腰鼓流道式污水换热器
US9605913B2 (en) 2011-05-25 2017-03-28 Saudi Arabian Oil Company Turbulence-inducing devices for tubular heat exchangers
CN104567523B (zh) * 2014-12-30 2016-06-08 湘潭大学 一种管内插椭球体强化循环粒子除垢防垢与传热装置
CN112710170B (zh) * 2020-12-30 2022-07-15 佛山科学技术学院 一种管壳式换热器
CN112728990A (zh) * 2020-12-30 2021-04-30 佛山科学技术学院 一种内插球体换热管
CN112815762B (zh) * 2021-01-19 2022-12-09 珠海格力电器股份有限公司 换热管结构、换热管组件和换热器

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1313624A (en) * 1919-08-19 Planoqrapii co
US155936A (en) * 1874-10-13 Improvement in tubes for underground-telegraph lines
FR367584A (fr) * 1905-07-01 1906-11-05 Arthur Wilfred Brewtnall Perfectionnements apportés aux appareils pour refroidir ou pour chauffer des liquides, des vapeurs et autres fluides
GB191116948A (en) * 1911-07-24 1912-07-18 Charles Algernon Parsons Improvements in and relating to Means for the Heating or Cooling of Fluids.
US1283550A (en) * 1918-04-23 1918-11-05 Thomas T Parker Steam-superheater.
US2034822A (en) * 1935-05-13 1936-03-24 Hotstream Heater Co Heat transfer means
US2070427A (en) * 1935-05-22 1937-02-09 Faunce Benjamin Rice Heat extractor
GB730375A (en) * 1949-06-07 1955-05-25 Hoechst Ag Improved heat exchange apparatus
US2709128A (en) * 1952-10-09 1955-05-24 Gas Machinery Co Packing or filling element
FR1249001A (fr) * 1959-02-24 1960-12-23 Maschf Augsburg Nuernberg Ag échangeur de chaleur tubulaire pour supports de chaleur coûteux
DE2808854C2 (de) * 1977-05-31 1986-05-28 Gebrüder Sulzer AG, 8401 Winterthur Mit Einbauten versehener Strömungskanal für ein an einem indirekten Austausch, insbesondere Wärmeaustausch, beteiligtes Medium
DE3005751A1 (de) * 1980-02-15 1981-08-20 Küba Kühlerfabrik Baierbrunn H.W.Schmitz GmbH & Co KG, 8021 Baierbrunn Verfahren und vorrichtung zur erhoehung der waermeleistung von verdampfern
EP0042613A3 (en) * 1980-06-24 1982-08-11 Richard Adolf Holl Apparatus and process for heat transfer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29516927U1 (de) * 1995-10-26 1996-02-01 SGL Technik GmbH, 86405 Meitingen Rohr für Wärmeaustauscher mit wirbelerzeugenden Stromstörungselementen

Also Published As

Publication number Publication date
EP0124584A1 (en) 1984-11-14
DE3376449D1 (en) 1988-06-01
WO1984001818A1 (en) 1984-05-10
AU574339B2 (en) 1988-07-07
IN160888B (xx) 1987-08-15
JPS59501991A (ja) 1984-11-29
CA1217763A (en) 1987-02-10
DK318684A (da) 1984-06-28
IT8323565A0 (it) 1983-11-02
AU2200883A (en) 1984-05-22
MX159117A (es) 1989-04-21
DK318684D0 (da) 1984-06-28
IT1203715B (it) 1989-02-23
EP0124584A4 (en) 1985-04-25
NO842342L (no) 1984-06-12
ZA838057B (en) 1984-06-27

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