US3028149A - Heat-exchangers - Google Patents

Heat-exchangers Download PDF

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Publication number
US3028149A
US3028149A US845171A US84517159A US3028149A US 3028149 A US3028149 A US 3028149A US 845171 A US845171 A US 845171A US 84517159 A US84517159 A US 84517159A US 3028149 A US3028149 A US 3028149A
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US
United States
Prior art keywords
pipe
bends
tubes
tube
air
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
US845171A
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English (en)
Inventor
Pellmyr Bengt
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.)
Svenska Flaktfabriken AB
Original Assignee
Svenska Flaktfabriken AB
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 Svenska Flaktfabriken AB filed Critical Svenska Flaktfabriken AB
Application granted granted Critical
Publication of US3028149A publication Critical patent/US3028149A/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
    • 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
    • F28F1/24—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 transversely
    • F28F1/32—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 transversely the means having portions engaging further tubular elements
    • 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
    • F28D7/08—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 otherwise bent, e.g. in a serpentine or zig-zag
    • 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
    • F28D7/08—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 otherwise bent, e.g. in a serpentine or zig-zag
    • F28D7/082—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 otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration
    • F28D7/085—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 otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration in the form of parallel conduits coupled by bent portions
    • F28D7/087—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 otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration in the form of parallel conduits coupled by bent portions assembled in arrays, each array being arranged in the same plane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/14—Safety or protection arrangements; Arrangements for preventing malfunction for preventing damage by freezing, e.g. for accommodating volume expansion

Definitions

  • the present invention relates to a device for heatexchaugcrs for exchange of heat between a flowing medium and air, which consists of a number of pipe-coils enclosed in a casing or a channel for the gaseous medium, each coil comprising a number of tubes coupled in series, mutually connected with pipe-bends located outside the casing.
  • the invention by simple means prevents bursting of such heat-exchangers, since the heat exchanger is furnished with one or more narrow equalization pipes connecting the pipe-bends located outside the casing in one part of the heat-exchanger-preferably in the part of the heat-exchanger, which is closest to the air-inlet-either mutually or with pipe-bends in another part of the heatexchanger.
  • Equalization pipes may suitably be connected with the pipe-bends by means of special fittings, made to simultaneously serve as necessary joint-elements between the tubes working in series.
  • FIG. 1 shows a perspective view of a heat-exchanger made in accordance with the invention
  • FIG. 2 shows a detail of a pipe-bend provided with a special fitting.
  • FIG. 1 indicates a casing or channel through which air is flowing from A to B.
  • 2 indicates a number of pipe-coils enclosed in the cover 1, each comprising a number of tubes 3 coupled in series. These are mutually connected with pipe-bends 4, located outside the casing 1.
  • 5 indicates a supply pipe for the flowing medium for instance hot water and 6 indicates an outlet-pipe for the mentioned medium.
  • the tubes are furnished with fins, which in the drawing are indicated as 7.
  • the heat-exchanger is furnished with one or more narrow equalization pipes 8, in the present case connecting the pipe-bends located outside the casing 1, in that part of the heat-exchanger, which is closest to the air-intake A.
  • the equalization pipes may also connect the mentioned pipe-bends with pipe-bends in another part of the heat-exchanger, as in the drawing indicated with 8.
  • the medium is for the most exposed parts of the heat-exchanger when risk of freezing is at hand transferred to parts located outside the zone of freezing risk without jeopardizing the normal flow in series through the heat-exchanger.
  • 9 indicates special fittings, which are made to serve simultaneously as necessary joint-elements between the tubes working in series. In this case the tubes proper are bent to outside the casing, The bent parts of the tubes are indicated as 4a and 4b respectively.
  • a heat exchanger for exchange of heat between a flowing heat exchange medium and air
  • a casing having an air inlet and an air outlet and forming a channel for the air
  • a plurality of pipe coils each comprising a number of tubes disposed within said casing and connected in series by pipe bends positioned outside the casing, and at least one small pipe of smaller cross section than said coils disposed outside the casing and connected to separae pipe bends in the part of the heat exchanger which is closest to the air inlet exterior of said casing to transfer the medium in one of said bends to the other of said bends and prevent bursting of the tubes adjacent the air inlet in the event of freezing during the operation of the heat exchanger, the small pipe affording the transfer of medium between said bends without jeopardizing the normal flow in series through the tubes of each coil.
  • a heat exchanger according to claim 1 wherein the tubes of each pipe coil are disposed in a plane parallel to the flow of air through said channel, said small pipe interconnecting the pipe bends of all of the coils immediately adjacent said air inlet.
  • a heat exchanger according to claim 1 wherein the tubes of each pipe coil are disposed in a plane parallel to the flow of air through said channel, said small pipe connecting the pipe bend of one coil immediately adjacent said air inlet with the bend of said coil next adjacent said air inlet.
  • a heat exchanger according to claim 1 wherein said pipe bends comprise integral parts of adjacent tubes bent at right angles to said tubes exterior of said casing and a. fitting interconnecting said parts to afford unrestricted flow therebetween, said small pipe being connected to said fitting to communicate with said bend therethrough.

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)
US845171A 1959-01-28 1959-10-08 Heat-exchangers Expired - Lifetime US3028149A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE868348X 1959-01-28

Publications (1)

Publication Number Publication Date
US3028149A true US3028149A (en) 1962-04-03

Family

ID=20367036

Family Applications (1)

Application Number Title Priority Date Filing Date
US845171A Expired - Lifetime US3028149A (en) 1959-01-28 1959-10-08 Heat-exchangers

Country Status (4)

Country Link
US (1) US3028149A (enrdf_load_stackoverflow)
BE (1) BE587037A (enrdf_load_stackoverflow)
GB (1) GB868348A (enrdf_load_stackoverflow)
NL (2) NL104246C (enrdf_load_stackoverflow)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2523710A1 (fr) * 1982-03-17 1983-09-23 Fives Cail Babcock Perfectionnements aux echangeurs de chaleur a tubes
EP0236634A3 (en) * 1985-12-26 1987-10-21 Baltimore Aircoil Company, Inc. Cooling apparatus
US4966230A (en) * 1989-01-13 1990-10-30 Modine Manufacturing Co. Serpentine fin, round tube heat exchanger
US5121613A (en) * 1991-01-08 1992-06-16 Rheem Manufacturing Company Compact modular refrigerant coil apparatus and associated manufacturing methods
US5531268A (en) * 1993-11-24 1996-07-02 Showa Aluminum Corporation Heat exchanger
EP0728508A1 (fr) * 1995-02-24 1996-08-28 BEFS PROKEM (Société Anonyme) Réacteur de cristallisation
US5896921A (en) * 1997-05-27 1999-04-27 Daewoo Electronics Co., Ltd. Indoor unit of an air conditioner
US6435273B1 (en) * 1998-12-14 2002-08-20 Vladlen Futernik Device for air temperature control in a vehicle
US20080060786A1 (en) * 2003-08-08 2008-03-13 Johnny Warnelov Collector for Connection to a Heat Pump
WO2021126809A1 (en) * 2019-12-17 2021-06-24 Coil Master Corporation Apparatus and method to prevent splitting or rupture in fluid coils

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US194856A (en) * 1877-09-04 Improvement in condensers for fractional distillation
US825828A (en) * 1905-08-21 1906-07-10 Abendroth Bros Smoke-hood.
US1134518A (en) * 1914-02-03 1915-04-06 Alfred R Hopkins Condenser.
US1908733A (en) * 1932-12-27 1933-05-16 Phillips Petroleum Co Cooling and condensing apparatus
US2301433A (en) * 1940-06-27 1942-11-10 John J Nesbitt Inc Water type cooling or heating surface
US2693679A (en) * 1953-03-24 1954-11-09 Philco Corp Plural compartment refrigeration apparatus
US2896429A (en) * 1955-10-20 1959-07-28 Karmazin John Heat exchange device
US2954213A (en) * 1958-02-24 1960-09-27 Marlo Coil Company Heat exchangers

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US194856A (en) * 1877-09-04 Improvement in condensers for fractional distillation
US825828A (en) * 1905-08-21 1906-07-10 Abendroth Bros Smoke-hood.
US1134518A (en) * 1914-02-03 1915-04-06 Alfred R Hopkins Condenser.
US1908733A (en) * 1932-12-27 1933-05-16 Phillips Petroleum Co Cooling and condensing apparatus
US2301433A (en) * 1940-06-27 1942-11-10 John J Nesbitt Inc Water type cooling or heating surface
US2693679A (en) * 1953-03-24 1954-11-09 Philco Corp Plural compartment refrigeration apparatus
US2896429A (en) * 1955-10-20 1959-07-28 Karmazin John Heat exchange device
US2954213A (en) * 1958-02-24 1960-09-27 Marlo Coil Company Heat exchangers

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2523710A1 (fr) * 1982-03-17 1983-09-23 Fives Cail Babcock Perfectionnements aux echangeurs de chaleur a tubes
EP0236634A3 (en) * 1985-12-26 1987-10-21 Baltimore Aircoil Company, Inc. Cooling apparatus
US4966230A (en) * 1989-01-13 1990-10-30 Modine Manufacturing Co. Serpentine fin, round tube heat exchanger
US5121613A (en) * 1991-01-08 1992-06-16 Rheem Manufacturing Company Compact modular refrigerant coil apparatus and associated manufacturing methods
US5531268A (en) * 1993-11-24 1996-07-02 Showa Aluminum Corporation Heat exchanger
EP0728508A1 (fr) * 1995-02-24 1996-08-28 BEFS PROKEM (Société Anonyme) Réacteur de cristallisation
US5896921A (en) * 1997-05-27 1999-04-27 Daewoo Electronics Co., Ltd. Indoor unit of an air conditioner
US6435273B1 (en) * 1998-12-14 2002-08-20 Vladlen Futernik Device for air temperature control in a vehicle
US20080060786A1 (en) * 2003-08-08 2008-03-13 Johnny Warnelov Collector for Connection to a Heat Pump
WO2021126809A1 (en) * 2019-12-17 2021-06-24 Coil Master Corporation Apparatus and method to prevent splitting or rupture in fluid coils
US11644247B2 (en) 2019-12-17 2023-05-09 Coil Master Corporation Apparatus and method to prevent splitting or rupture in fluid coils

Also Published As

Publication number Publication date
NL243820A (enrdf_load_stackoverflow)
NL104246C (enrdf_load_stackoverflow)
GB868348A (en) 1961-05-17
BE587037A (fr) 1960-05-16

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