EP0213792A3 - Heat exchangers - Google Patents

Heat exchangers Download PDF

Info

Publication number
EP0213792A3
EP0213792A3 EP86306048A EP86306048A EP0213792A3 EP 0213792 A3 EP0213792 A3 EP 0213792A3 EP 86306048 A EP86306048 A EP 86306048A EP 86306048 A EP86306048 A EP 86306048A EP 0213792 A3 EP0213792 A3 EP 0213792A3
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
heat exchange
moulding process
fins
exchange tube
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.)
Withdrawn
Application number
EP86306048A
Other languages
German (de)
French (fr)
Other versions
EP0213792A2 (en
Inventor
Michael John Edmundson
Ian Townsend Grundy
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.)
Baxi Partnership Ltd
Original Assignee
Baxi Partnership Ltd
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 Baxi Partnership Ltd filed Critical Baxi Partnership Ltd
Publication of EP0213792A2 publication Critical patent/EP0213792A2/en
Publication of EP0213792A3 publication Critical patent/EP0213792A3/en
Withdrawn legal-status Critical Current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
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/40—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/0005—Details for water heaters
    • F24H9/001—Guiding means
    • F24H9/0026—Guiding means in combustion gas channels
    • 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
    • F28F1/26—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 being integral with the 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
    • 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

Abstract

A heat exchanger, for use especially but not exclusively in a gas-fired appliance, is of unitary construction and comprising a water inlet manifold (11) and a water outlet manifold (12) interconnected in water flow communicating relationship by at least one externally-finned heat exchange tube (13).
A preferred heat exchanger consists of three parallel externally-finned heat exchanger tubes integral with the end manifolds.
With such a unitary heat exchange structure it will be manifest that during installation and servicing, save for water pipe connections to the manifolds and a drain plug, there are no sealing requirements and consequently there are no possible leakage paths from the heat exchanger per se.
The heat exchanger is preferably but not exclusively formed of cast-iron and is preferably but not exclusively formed using a green sand moulding process with the fins (15) disposed as closely together as is possible within the limitations of the moulding process. The fins are preferably of radiussed configuration and also of converging configuration both transversely and axially of the respective heat exchanger tube to facilitate the moulding process.
Turbulence-creating means (17) is provided between at least some of the adjacent fins of the or each heat exchange tube to ensure re-mixing of combustion products of different temperature in the region of the heat exchange tube to improve the heat transfer qualities of the heat exchanger.
EP86306048A 1985-08-08 1986-08-05 Heat exchangers Withdrawn EP0213792A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8519942 1985-08-08
GB858519942A GB8519942D0 (en) 1985-08-08 1985-08-08 Heat exchangers

Publications (2)

Publication Number Publication Date
EP0213792A2 EP0213792A2 (en) 1987-03-11
EP0213792A3 true EP0213792A3 (en) 1988-10-12

Family

ID=10583511

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86306048A Withdrawn EP0213792A3 (en) 1985-08-08 1986-08-05 Heat exchangers

Country Status (2)

Country Link
EP (1) EP0213792A3 (en)
GB (2) GB8519942D0 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2206189A (en) * 1987-06-24 1988-12-29 Baxi Partnership Ltd Finned heat exchanger tubes
GB2307037B (en) * 1995-11-07 2000-02-16 Caradon Ideal Ltd Heat exchanger baffle
DE19630509A1 (en) 1996-07-29 1998-02-05 Bosch Gmbh Robert Gas heated water heater
AU2003300767A1 (en) * 2003-12-31 2005-07-21 Remo Castelli Heat exchanger for water-heating apparatuses
US6997247B2 (en) * 2004-04-29 2006-02-14 Hewlett-Packard Development Company, L.P. Multiple-pass heat exchanger with gaps between fins of adjacent tube segments
CN104061683A (en) * 2014-06-14 2014-09-24 广东万和新电气股份有限公司 Cast aluminum heat exchanger of gas-fired boiler
US20190277571A1 (en) * 2018-03-07 2019-09-12 United Technologies Corporation Ganged plate stack in cast plate fin heat exchanger

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB864277A (en) * 1958-08-02 1961-03-29 Glow Worm Boilers Ltd Improvements relating to water heaters for domestic hot water systems
GB1123437A (en) * 1965-11-11 1968-08-14 Ernest Leslie Hovey Improvements relating to water heating boilers
DE2036012A1 (en) * 1970-07-21 1972-01-27 Reynolds, Spencer E., Murrysville, Pa. (V.St-A.) Radiator section, in particular for gas heating with water as the heat carrier
DE2448790B2 (en) * 1974-10-12 1977-01-20 Vießmann, Hans, 3559 Battenberg GAS BOILER
DE2245357C2 (en) * 1971-09-21 1983-02-03 Rendamax Produkten B.V., Kerkrade-West Heat exchanger with a number of tubes with helical fins arranged parallel to one another

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB440168A (en) * 1934-06-06 1935-12-06 George Wilfrid Trotter Improvements relating to boilers
GB591977A (en) * 1945-05-07 1947-09-03 William Edmund Dennison Improvements in or relating to fire-back boilers for open fire-places
GB1536146A (en) * 1975-06-28 1978-12-20 Valor Newhome Ltd Heat exchanger for a gas-fired appliance

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB864277A (en) * 1958-08-02 1961-03-29 Glow Worm Boilers Ltd Improvements relating to water heaters for domestic hot water systems
GB1123437A (en) * 1965-11-11 1968-08-14 Ernest Leslie Hovey Improvements relating to water heating boilers
DE2036012A1 (en) * 1970-07-21 1972-01-27 Reynolds, Spencer E., Murrysville, Pa. (V.St-A.) Radiator section, in particular for gas heating with water as the heat carrier
DE2245357C2 (en) * 1971-09-21 1983-02-03 Rendamax Produkten B.V., Kerkrade-West Heat exchanger with a number of tubes with helical fins arranged parallel to one another
DE2448790B2 (en) * 1974-10-12 1977-01-20 Vießmann, Hans, 3559 Battenberg GAS BOILER

Also Published As

Publication number Publication date
GB2180045A (en) 1987-03-18
GB2180045B (en) 1989-09-06
GB8519942D0 (en) 1985-09-18
GB8619112D0 (en) 1986-09-17
EP0213792A2 (en) 1987-03-11

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RIN1 Information on inventor provided before grant (corrected)

Inventor name: GRUNDY, IAN TOWNSEND

Inventor name: EDMUNDSON, MICHAEL JOHN