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US3493041A - Gas-liquid finned heat exchanger - Google Patents

Gas-liquid finned heat exchanger Download PDF

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Publication number
US3493041A
US3493041A US695213A US3493041DA US3493041A US 3493041 A US3493041 A US 3493041A US 695213 A US695213 A US 695213A US 3493041D A US3493041D A US 3493041DA US 3493041 A US3493041 A US 3493041A
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US
United States
Prior art keywords
gas
liquid
chamber
gas chamber
heat
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
US695213A
Other languages
English (en)
Inventor
Avinoam Hourwitz
Boleslaw Houchman
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Individual
Original Assignee
Individual
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Filing date
Publication date
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Application granted granted Critical
Publication of US3493041A publication Critical patent/US3493041A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
    • F28D7/106—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically consisting of two coaxial conduits or modules of two coaxial conduits
    • 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
    • F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only 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
    • 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
    • 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
    • F28F13/08—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by varying the cross-section of the flow channels

Definitions

  • FIG. 1 A. HOURWITZ' ETAL GAS-LIQUID FINNED HEAT Excmmefin FIG. 1
  • the present invention relates to heat exchangers for the exchange of heat between a gas and a liquid.
  • heat exchangers for the transfer of heat from a donor gas to an acceptor liquid comprising two concentric annular chambers through the inner of which flows the gas and through the outer of which flows the liquid, the surface of the inner chamber for the gas comprising a plurality of longitudinally arranged ribs separated from one another by channels in the form of grooves.
  • the annular gas chamber is formed by the internally ribbed cylinder and an axially extending core, the core and the ribs being substantially coextensive.
  • the invention provides a gas-liquid heat exchanger adapted for the heat transfer from a gaseous heat donor 3,493,041 Patented Feb. 3, 1970 to a liquid heat acceptor of the foregoing type, i.e., comprising an outer annular liquid chamber and an inner gas chamber separated from each other by a partition of a heat conducting material whose surface on the side of the gas chamber comprises ribs extending in the direction of the gas flow, the outer wall of the gas chamber being defined by the mentioned partition, and the inner wall being defined by a coaxial core, the arrangement being such that the passageway for the gas in the gas chamber being gradually constricted from the hot to the cold end thereof.
  • the transversal temperature gradient is decreased near the hot end and increased near the cold end with the result that the overall efficiency of the heat exchanger is increased.
  • the height of the ribs increases gradually from the hot to the cold end of the gas chamber.
  • the shape of the slope of the ridge of each rib will depend on the design and geometry of the exchanger.
  • the slope may be straight-lined, concave-curved or convex-curved.
  • the gas chamber may be cylindrical and,
  • if desired, may comprise a substantially cylindrical
  • FIGS. 1, 2 and 4 are axial sections of three heat exchangers according to the invention; and FIGS. 3 and 5 are fragments of sections along lines IIIIII of FIG. 1, and VV of FIG. 4, respectively, drawn to a larger scale.
  • the heat exchanger illustrated in FIGS. 1 and 3 comprises a cylindrical body 1 and a core 2.
  • An inner tubular partition 3 subdivides the inner space of body 1 into a liquid chamber 4 and a gas chamber 5.
  • the liquid chamber 4 comprises connections 6 and 7, one of which serves as the inlet and the other as the outlet, depending on whether the liquid and gas flow is in counter-current or co-current.
  • Body 1 is fitted with two caps 8 and 9 of which the former serves as the gas inlet and thus constitutes the hot end of the gas chamber, and the latter serves as the gas outlet and thus constitutes the cold end of the gas hamber.
  • the inner face of partition 3 facing the gas chamber 5 omprises a plurality of ribs 1 the height of each of vhich increases gradually from a minimum near the hot -.nd to a maximum near the cold end of gas chamber 5.
  • t follows from this arrangement that the passageway for he gas in chamber is constricted gradually from the hot 0 the cold end of the chamber.
  • the effective contact :etween the gas and the partition increases gradually 1 'rom the hot towards the cold end of the chamber, that is, n the same direction as the temperature of the gas lecreases.
  • FIG. 2 is basically iimilar to that of FIGS. 1 and 3, except that in FIG. 2 he gradual constriction of the passageway for the gas in :he gas chamber is achieved by a gradual increase of the :ross-sectional area of the core.
  • the ribs a are of uniform height while the diameter of core la is smaller near the hot end of the gas chamber 5 and increases gradually towards the cold end. All other components are identical to those of the embodiment of FIGS. 1 and 3 and are designated by the same numerals.
  • the functioning of this embodiment is similar to that of the embodiment of FIGS. 1 and 3 in that the passageway for the gas chamber 5 is constricted gradually from the hot to the cold end of the chamber, whereby the effective contact between the gas and partition 3 increases gradually in the same direction.
  • the gas chamber does not include a core, and ribs 10b increase in height gradually from the hot to the cold end so as to meet or nearly meet at a point 11 along the longitudinal axis of the heat exchanger.
  • the remaining components of this exchanger are similar to those of the preceding two embodiments and are therefore indexed by the same numerals.
  • the cylindrical shape of the gas chamber 5 may be modified into a tubular chamber of other cross-sectional shape, e.g. elliptical or polygonal of any kind.
  • a gas-liquid heat exchanger for the heat transfer from a gaseous heat donor to a liquid heat acceptor comprising, an outer annular liquid chamber forming a passageway for the liquid, an inner gas chamber forming a passageway for the gas, said chambers being separated from each other by a partition of a heat conducting material whose surface on the side of the gas chamber 0 forms the outer wall of the gas chamber and comprises ribs extending into the passageway for the gas and longitudinally of the gas chamber in the direction of the gas flow, and a coaxial core dis-posed within the gas chamber and forming the inner wall thereof, the passageway for the gas in the gas chamber being gradually constricted from the hot to the cold end thereof, said coaxial core being cylindrical and defining wtih said partition a cylindrical gas chamber, the height of said ribs increasing gradually from the hot to the cold end of the gas chamber.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
US695213A 1967-01-04 1968-01-02 Gas-liquid finned heat exchanger Expired - Lifetime US3493041A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IL2721767 1967-01-04

Publications (1)

Publication Number Publication Date
US3493041A true US3493041A (en) 1970-02-03

Family

ID=11044086

Family Applications (1)

Application Number Title Priority Date Filing Date
US695213A Expired - Lifetime US3493041A (en) 1967-01-04 1968-01-02 Gas-liquid finned heat exchanger

Country Status (8)

Country Link
US (1) US3493041A (da)
BE (1) BE708952A (da)
CH (1) CH460830A (da)
DE (1) DE1601202A1 (da)
ES (1) ES349259A1 (da)
FR (1) FR1549917A (da)
GB (1) GB1172801A (da)
NL (1) NL6800067A (da)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4154296A (en) * 1976-01-26 1979-05-15 American Standard Inc. Inner finned heat exchanger tube
WO1984003758A1 (en) * 1983-03-17 1984-09-27 Harry J Scanlan Heat exchanger
US4581512A (en) * 1984-07-10 1986-04-08 Mg Industries, Inc. Method and apparatus for cooling induction heated material
US4993479A (en) * 1987-11-14 1991-02-19 Schmidt'sche Heissdampf Gmbh Heat exchangers
US6675881B1 (en) 2002-11-07 2004-01-13 Pratt And Whitney Canada Corp. Heat exchanger with fins formed from slots
US20100037415A1 (en) * 2008-08-18 2010-02-18 Lansinger Jere R Windshield washer fluid heater and system
WO2014110650A1 (en) * 2013-01-15 2014-07-24 Gilles Savard Air-liquid heat exchanger
US8925620B2 (en) 2008-08-18 2015-01-06 Tsm Corporation Windshield washer fluid heater
EP2784429A3 (de) * 2013-03-12 2015-04-01 Johann Rainer Wärmeübertragungsvorrichtung und damit ausgestatteter Ofen
US9459052B2 (en) 2011-03-01 2016-10-04 Dana Canada Corporation Coaxial gas-liquid heat exchanger with thermal expansion connector
US20170198990A1 (en) * 2016-01-12 2017-07-13 Hamilton Sundstrand Corporation Heat exchangers
US11293703B2 (en) 2016-01-12 2022-04-05 Hamilton Sundstrand Corporation Heat exchangers
US11802736B2 (en) 2020-07-29 2023-10-31 Hamilton Sundstrand Corporation Annular heat exchanger

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2747846A1 (de) * 1976-10-28 1978-05-03 Gen Electric Gerippter mehrfachdurchlauf-rohrwaermeaustauscher
SE455229B (sv) * 1983-09-28 1988-06-27 Folbex Ab Vermevexlare med i ring placerade veckade lameller
FR2593635B2 (fr) * 1986-01-29 1988-05-20 Framatome Sa Generateur de vapeur a distributeur, notamment pour centrale nucleaire
FR2993507B1 (fr) * 2012-07-20 2014-08-15 Valeo Systemes Thermiques Dispositif de chauffage electrique pour vehicule automobile, et appareil de ventilation chauffage et/ou de climatisation associe

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1307393A (en) * 1919-06-24 Fuel vaporizer
US1983466A (en) * 1933-11-14 1934-12-04 Joseph E Kline Oil cooler
GB547263A (en) * 1940-04-04 1942-08-20 Hourvitz Avinoam Apparatus for the exchange of heat between two fluids
US2445115A (en) * 1944-04-07 1948-07-13 Us Agriculture Heat exchanger
CH268479A (de) * 1948-04-03 1950-05-31 Steinemann Alfred Mit Heizgasen arbeitende thermische Anlage.
US2740803A (en) * 1950-01-19 1956-04-03 Ruhrchemie Ag Catalytic hydrogenation of carbon monoxide with indirect heat exchange cooling
FR1274618A (fr) * 1960-09-15 1961-10-27 échangeur de chaleur et éléments pour sa construction, applicables notamment au refroidissement de l'hexafluorure d'uranium

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1307393A (en) * 1919-06-24 Fuel vaporizer
US1983466A (en) * 1933-11-14 1934-12-04 Joseph E Kline Oil cooler
GB547263A (en) * 1940-04-04 1942-08-20 Hourvitz Avinoam Apparatus for the exchange of heat between two fluids
US2445115A (en) * 1944-04-07 1948-07-13 Us Agriculture Heat exchanger
CH268479A (de) * 1948-04-03 1950-05-31 Steinemann Alfred Mit Heizgasen arbeitende thermische Anlage.
US2740803A (en) * 1950-01-19 1956-04-03 Ruhrchemie Ag Catalytic hydrogenation of carbon monoxide with indirect heat exchange cooling
FR1274618A (fr) * 1960-09-15 1961-10-27 échangeur de chaleur et éléments pour sa construction, applicables notamment au refroidissement de l'hexafluorure d'uranium

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4154296A (en) * 1976-01-26 1979-05-15 American Standard Inc. Inner finned heat exchanger tube
WO1984003758A1 (en) * 1983-03-17 1984-09-27 Harry J Scanlan Heat exchanger
GB2146424A (en) * 1983-03-17 1985-04-17 Harry J Scanlan Heat exchanger
AU567032B2 (en) * 1983-03-17 1987-11-05 South Breeze Corporation Heat exchanger
US4581512A (en) * 1984-07-10 1986-04-08 Mg Industries, Inc. Method and apparatus for cooling induction heated material
US4993479A (en) * 1987-11-14 1991-02-19 Schmidt'sche Heissdampf Gmbh Heat exchangers
US6675881B1 (en) 2002-11-07 2004-01-13 Pratt And Whitney Canada Corp. Heat exchanger with fins formed from slots
US8550147B2 (en) * 2008-08-18 2013-10-08 Clear Vision Associates, Llc Windshield washer fluid heater and system
CN102123893A (zh) * 2008-08-18 2011-07-13 J·R·兰辛格 挡风玻璃洗涤器流体加热器和系统
US20100037415A1 (en) * 2008-08-18 2010-02-18 Lansinger Jere R Windshield washer fluid heater and system
EP2313295A4 (en) * 2008-08-18 2014-04-23 Jere R Lansinger DEVICE AND SYSTEM FOR HEATING WASHER FLUID LIQUID
US8925620B2 (en) 2008-08-18 2015-01-06 Tsm Corporation Windshield washer fluid heater
EP2313295A2 (en) * 2008-08-18 2011-04-27 Jere R. Lansinger Windshield washer fluid heater and system
US9459052B2 (en) 2011-03-01 2016-10-04 Dana Canada Corporation Coaxial gas-liquid heat exchanger with thermal expansion connector
WO2014110650A1 (en) * 2013-01-15 2014-07-24 Gilles Savard Air-liquid heat exchanger
EP2784429A3 (de) * 2013-03-12 2015-04-01 Johann Rainer Wärmeübertragungsvorrichtung und damit ausgestatteter Ofen
US20170198990A1 (en) * 2016-01-12 2017-07-13 Hamilton Sundstrand Corporation Heat exchangers
US10088250B2 (en) * 2016-01-12 2018-10-02 Hamilton Sundstrand Corporation Heat exchangers
US20190011199A1 (en) * 2016-01-12 2019-01-10 Hamilton Sundstrand Corporation Heat exchangers
US10921071B2 (en) * 2016-01-12 2021-02-16 Hamilton Sundstrand Corporation Heat exchangers
US11293703B2 (en) 2016-01-12 2022-04-05 Hamilton Sundstrand Corporation Heat exchangers
US11692780B2 (en) 2016-01-12 2023-07-04 Hamilton Sundstrand Corporation Heat exchangers
US11802736B2 (en) 2020-07-29 2023-10-31 Hamilton Sundstrand Corporation Annular heat exchanger

Also Published As

Publication number Publication date
CH460830A (de) 1968-08-15
GB1172801A (en) 1969-12-03
BE708952A (da) 1968-05-16
FR1549917A (da) 1968-12-13
ES349259A1 (es) 1969-04-01
DE1601202A1 (de) 1970-12-10
NL6800067A (da) 1968-07-05

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