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EP0751363A1 - Wärmetauscher - Google Patents

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Publication number
EP0751363A1
EP0751363A1 EP95304478A EP95304478A EP0751363A1 EP 0751363 A1 EP0751363 A1 EP 0751363A1 EP 95304478 A EP95304478 A EP 95304478A EP 95304478 A EP95304478 A EP 95304478A EP 0751363 A1 EP0751363 A1 EP 0751363A1
Authority
EP
European Patent Office
Prior art keywords
heat exchange
coil
exchange tubes
water
shaped 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.)
Withdrawn
Application number
EP95304478A
Other languages
English (en)
French (fr)
Inventor
Gordon W. Fenn
Young Mun Ryoo
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.)
Haitai Electronics Co Ltd
Original Assignee
Haitai Electronics Co 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 Haitai Electronics Co Ltd filed Critical Haitai Electronics Co Ltd
Priority to EP95304478A priority Critical patent/EP0751363A1/de
Publication of EP0751363A1 publication Critical patent/EP0751363A1/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F28D7/02—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 helically coiled
    • F28D7/024—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 helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
    • 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
    • F24H1/43—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes helically or spirally coiled

Definitions

  • the present invention relates to a heat exchanger for use in a gas quick water heater, boiler, and the like, and more particularly, to a heat exchanger for a gas quick water heater in which water is heated in an indirect heating method for not exposing the exchanger to a high-temperature flame burned in a burner, and in which cold water passes through a plurality of coil-shaped heat exchange tubes to thereby greatly enhance thermal efficiency.
  • a heat exchanger used in a conventional gas quick water heater, boiler, and the like is installed above a burner, and directly exposed to a high-temperature flame therefrom.
  • a plurality of thermal conduction fins having a high thermal conductivity are attached to the surface of a pipe through which cold water passes, increasing thermal efficiency.
  • Fig. 1 is a schematic view of a general gas quick water heater.
  • cold water supplied through a water supply pipe 1 passes through a heat exchange tube 2, and is then discharged through an outflow pipe 4. Passing through heat exchange tube 2, the cold water is heated directly by a burner 3 installed therebelow.
  • Heat exchange tube 2 is manufactured of copper having an excellent thermal conductivity.
  • Thermal conduction fins 5 are also made of copper, having an excellent thermal conductivity.
  • thermal conduction fins 5 and heat exchange tube 2 are corroded to shorten their lives. Since the heat exchanger is expensive, exchanging it causes a lot of cost, increasing the consumer's economic burden.
  • thermal conduction fins 5 to heat exchange tube 2 there is used lead so as to plug a gap therebetween and thereby prevent rocking therebetween. This increases thermal conductivity rate. As well-known in the art, lead is harmful to create trouble to workers and contaminate environment.
  • a heat exchanger comprising: an annular lower manifold to which a cold-water intake through which cold water comes is connected; an annular upper manifold to which a hot-water exit through which hot water is discharged is connected; a plurality of coil-shaped heat exchange tubes connected between the lower and upper manifolds; a baffle plates installed at the center portion of said coil-shaped heat exchange tubes; an inner liner for embracing the plurality of coil-shaped heat exchange tubes on the inner surface thereof; and an outer liner for embracing the plurality of coil-shaped heat exchange tubes on the outer surface thereof, the inner and outer liners forming a path of burned gas.
  • a heat exchanger 100 of the present invention as shown in Figs. 2 and 3, comprises a lower manifold 101, a upper manifold 102, a plurality of coil-shaped heat exchange tubes 103 connected between lower and upper manifolds 101 and 102, an inner liner 107 embracing the plurality of coil-shaped heat exchange tubes 103 on the inner surface thereof, and an outer liner 108 embracing the plurality of coil-shaped heat exchange tubes 103 on the outer surface thereof.
  • Baffle plates 106 are perpendicularly installed at the center portion of coil-shaped heat exchange tubes 103.
  • Lower manifold 101 is an annular pipe to which a cold-water intake 104 through which cold water comes is connected.
  • Upper manifold 102 is an annular pipe to which a hot-water exit 105 through which hot water goes is connected.
  • the upper portion of coil-shaped heat exchange tubes 103 communicates with upper manifold 102 and the lower portion thereof does with lower manifold 101, forming a path of water.
  • Coil-shaped heat exchange tubes 103 are installed along annular lower and upper manifolds 101 and 102.
  • the heat exchange tubes are disposed to be adjacent to each other.
  • baffle plate 106 is a ribbon-shaped metal plate in which baffles 106a are formed in either direction of the sides.
  • inner and outer liners 107 and 108 for embracing the heat exchange tubes are provided on the inner and outer surfaces of the plurality of coil-shaped heat exchange tubes 103.
  • the inner and outer liners 107 and 108 form a path through which high-temperature burned gas moves.
  • the heat exchanger of the present invention operates as below.
  • Cold water comes into lower manifold 101 through cold-water intake 104, and moves to upper manifold 102 through the plurality of coil-shaped heat exchange tubes 103.
  • the hot water is discharged through hot-water exit 105. Since heat exchange tubes 103 are coil-shaped, water flows slowly.
  • High-temperature burned gas generated from a burner comes through the upper portion of the path of burned gas formed by inner and outer liners 107 and 108, and is discharged through the lower portion thereof. Since baffle plate 106 is provided at the center of heat exchange tubes 103, the burned gas flows slowly.
  • Heat exchange is carried out between the water flowing inside heat exchange tubes 103 and the burned gas flowing outside heat exchange tubes 103. Since the water and burned gas flow slowly, a heat exchange time is lengthened to greatly increase thermal efficiency.
  • Heat exchanger 100 for gas quick water heater of the present invention is heated indirectly not directly by the burner, preventing corrosion due to high temperature and harmful components such as combustion oxides. This sharply increases its life.
  • the present invention has a sharply increased thermal efficiency, obtaining high-temperature hot water.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
EP95304478A 1995-06-26 1995-06-26 Wärmetauscher Withdrawn EP0751363A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP95304478A EP0751363A1 (de) 1995-06-26 1995-06-26 Wärmetauscher

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP95304478A EP0751363A1 (de) 1995-06-26 1995-06-26 Wärmetauscher

Publications (1)

Publication Number Publication Date
EP0751363A1 true EP0751363A1 (de) 1997-01-02

Family

ID=8221235

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95304478A Withdrawn EP0751363A1 (de) 1995-06-26 1995-06-26 Wärmetauscher

Country Status (1)

Country Link
EP (1) EP0751363A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003012356A1 (de) * 2001-07-21 2003-02-13 Hans Henting Wärmetauscher
CN103808185A (zh) * 2014-02-21 2014-05-21 杭州沈氏换热器有限公司 一种高效换热管及其蒸发式冷凝器
WO2021100909A1 (ko) * 2019-11-19 2021-05-27 오문근 열교환 보일러

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1464954A (en) * 1919-06-25 1923-08-14 Geneva Heater Company Water heater
FR1191680A (fr) * 1958-02-18 1959-10-21 Perfectionnements apportés aux échangeurs de chaleur, en particulier pour appareils du genre des chauffe-eau
US3219017A (en) * 1962-08-27 1965-11-23 Neil H Thybault Water heater having multiple heating coils arranged in parallel flow paths
US3306352A (en) * 1965-02-10 1967-02-28 Curren John Leo Compact coiled tube heat exchanger
FR2379032A1 (fr) * 1977-01-28 1978-08-25 Sapca Chaudiere a gaz
FR2379785A1 (fr) * 1977-02-02 1978-09-01 Guldager Consult Echangeur de chaleur, en particulier chaudiere a eau chaude pour le chauffage de l'eau chaude domestique
DE3115811A1 (de) * 1981-04-18 1982-11-04 Georg 8503 Altdorf Holzinger Ofenanordnung zur warmwasserbereitung und -heizung
US4388066A (en) * 1981-07-31 1983-06-14 American Schack Company, Inc. Radiation shield and method of use

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1464954A (en) * 1919-06-25 1923-08-14 Geneva Heater Company Water heater
FR1191680A (fr) * 1958-02-18 1959-10-21 Perfectionnements apportés aux échangeurs de chaleur, en particulier pour appareils du genre des chauffe-eau
US3219017A (en) * 1962-08-27 1965-11-23 Neil H Thybault Water heater having multiple heating coils arranged in parallel flow paths
US3306352A (en) * 1965-02-10 1967-02-28 Curren John Leo Compact coiled tube heat exchanger
FR2379032A1 (fr) * 1977-01-28 1978-08-25 Sapca Chaudiere a gaz
FR2379785A1 (fr) * 1977-02-02 1978-09-01 Guldager Consult Echangeur de chaleur, en particulier chaudiere a eau chaude pour le chauffage de l'eau chaude domestique
DE3115811A1 (de) * 1981-04-18 1982-11-04 Georg 8503 Altdorf Holzinger Ofenanordnung zur warmwasserbereitung und -heizung
US4388066A (en) * 1981-07-31 1983-06-14 American Schack Company, Inc. Radiation shield and method of use

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003012356A1 (de) * 2001-07-21 2003-02-13 Hans Henting Wärmetauscher
CN103808185A (zh) * 2014-02-21 2014-05-21 杭州沈氏换热器有限公司 一种高效换热管及其蒸发式冷凝器
CN103808185B (zh) * 2014-02-21 2015-11-25 杭州沈氏节能科技股份有限公司 一种高效换热管及其蒸发式冷凝器
WO2021100909A1 (ko) * 2019-11-19 2021-05-27 오문근 열교환 보일러

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