EP0971195A2 - Verbesserter Gas-Flüssigkeitswärmetauscher - Google Patents

Verbesserter Gas-Flüssigkeitswärmetauscher Download PDF

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Publication number
EP0971195A2
EP0971195A2 EP99830429A EP99830429A EP0971195A2 EP 0971195 A2 EP0971195 A2 EP 0971195A2 EP 99830429 A EP99830429 A EP 99830429A EP 99830429 A EP99830429 A EP 99830429A EP 0971195 A2 EP0971195 A2 EP 0971195A2
Authority
EP
European Patent Office
Prior art keywords
gas
heat exchanger
liquid
liquid heat
passage
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Withdrawn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
EP99830429A
Other languages
English (en)
French (fr)
Other versions
EP0971195A3 (de
Inventor
Luciano Tesolin
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.)
Fontecal SpA
Original Assignee
Fontecal SpA
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 Fontecal SpA filed Critical Fontecal SpA
Publication of EP0971195A2 publication Critical patent/EP0971195A2/de
Publication of EP0971195A3 publication Critical patent/EP0971195A3/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
    • F28D1/0477—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
    • 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

Definitions

  • the present invention relates to an improved gas liquid heat exchanger.
  • the invention relates to an exchanger of the above kind realised in such a way to allow to obtain remarkable advantages with respect to the known exchangers.
  • liquid - gas heat exchangers transfer heat from a gas to a liquid, or vice versa. This kind of exchanger is often employed in different fields.
  • one of the fields extensively employing this kind of exchanger is that of heating, with particular reference to the smokes - water main exchanger in the heat generators (boilers).
  • Hot smokes are developed by combustion in air of gaseous, liquid or solid combustibles feeding a burner, and water heated is used as thermal carrier fluid for heating rooms by radiators and for heating water destined to the human use by a further water - water exchanger.
  • Main object of the present invention is that of providing a heat exchanger that could be universally employed as main exchanger in the heating field.
  • Further object of the present invention is that of providing a gas - liquid heat exchanger able to operate in a gas condensation regime.
  • Still another object of the present invention is that of providing a solution extremely solid and that can be easily cleaned.
  • a further object of the present invention is that of providing a heat exchanger providing different compositions of the same elements to realise exchangers usable for different apparatuses.
  • a gas - liquid heat exchanger comprising at least two heat exchanger elements, each one providing at least one liquid passage channel, or liquid side, externally providing a finned pack, or gas side, with fins substantially parallel each other, coupled in correspondence of their root with said at least one passage channel, said at least two heat exchangers being in hydraulic communication each other with a liquid passage from one element to the other one in a direction opposite with respect to the gas motion direction, and the finned packs of the passage channels of the relevant exchanger elements being penetrable each other, the penetration rate of the finned packs being variable.
  • each exchanger element can provide one or more liquid passage channel placed parallel and hydraulically connected in parallel, in series or in another way.
  • said passage channels of each exchanger element can be co-planar
  • fins can be also provided inside said passage channels.
  • exchangers according to the invention can be put side by side.
  • the exchanger according to the invention can be comprised of a plurality of hydraulic circuits, for example for primary water and sanitary water.
  • two, three or more overlapped exchanger elements are provided.
  • a natural draught boiler is shown provided with a heat exchanger according to the invention, providing a primary water inlet 1, on which a pump 2 is provided, to send water through the elements of the exchanger, in this case three elements, respectively indicated by reference numbers 3, 4 and 5.
  • Comburent air enters through inlet 7, passing through boiler 8 and combustion chamber 9, and then exits through the chimney or smokes outlet 10.
  • channels can be provided one or more fins (not shown) to increase the exchange surface for the liquid.
  • a plurality of exchanger according to the invention can be put side by side, eventually hydraulically interconnected, to realise a bigger single exchanger able to exchange increasing thermal power.
  • Various elements to be overlapped and/or put side by side can be the equal or different each other, or partly equal each other.
  • Exchanger could be in any case “monothermal” or “bithermal” or “plurithermal”, being it possible to englobe one or more hydraulic circuits, of which, for example, one for "primary” water for heating purposes, and the second one for the preparation of sanitary hot water.
  • Fins 11 of the single elements 3, 4, 5 are realised in such a way that in the overlapping of more elements a pre-established penetration among the same elements can be obtained. In fact, it can be observed from figure 1 that penetration of fins 11 is less than in figure 6.
  • Penetration of fins 11 can vary between a minimum value ( zero faced surface) and a maximum value (maximum faced surface).

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)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Gas Separation By Absorption (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
EP99830429A 1998-07-06 1999-07-05 Verbesserter Gas-Flüssigkeitswärmetauscher Withdrawn EP0971195A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITRM980452 1998-07-06
IT98RM000452A IT1299548B1 (it) 1998-07-06 1998-07-06 Scambiatore di calore gas-liquido perfezionato

Publications (2)

Publication Number Publication Date
EP0971195A2 true EP0971195A2 (de) 2000-01-12
EP0971195A3 EP0971195A3 (de) 2000-08-02

Family

ID=11406032

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99830429A Withdrawn EP0971195A3 (de) 1998-07-06 1999-07-05 Verbesserter Gas-Flüssigkeitswärmetauscher

Country Status (2)

Country Link
EP (1) EP0971195A3 (de)
IT (1) IT1299548B1 (de)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2021117A (en) * 1931-03-21 1935-11-12 Babcock & Wilcox Co Heat exchanger
GB601833A (en) * 1944-06-19 1948-05-13 Calumet And Hecla Cons Copper Method of preforming finned tubing and the product thereof
DE1937652A1 (de) * 1969-07-21 1971-01-28 Mecano Bundy Gmbh Waermeaustauscher
EP0467250A1 (de) * 1990-07-17 1992-01-22 Hans Dr. Viessmann Heizgaszugtasche
US5638695A (en) * 1994-06-15 1997-06-17 Nippondenso Co., Ltd. Refrigerating apparatus
DE29804815U1 (de) * 1997-03-24 1998-04-30 Joh. Vaillant Gmbh U. Co, 42859 Remscheid Heizeinrichtung mit einem wassergekühlten Brenner

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2021117A (en) * 1931-03-21 1935-11-12 Babcock & Wilcox Co Heat exchanger
GB601833A (en) * 1944-06-19 1948-05-13 Calumet And Hecla Cons Copper Method of preforming finned tubing and the product thereof
DE1937652A1 (de) * 1969-07-21 1971-01-28 Mecano Bundy Gmbh Waermeaustauscher
EP0467250A1 (de) * 1990-07-17 1992-01-22 Hans Dr. Viessmann Heizgaszugtasche
US5638695A (en) * 1994-06-15 1997-06-17 Nippondenso Co., Ltd. Refrigerating apparatus
DE29804815U1 (de) * 1997-03-24 1998-04-30 Joh. Vaillant Gmbh U. Co, 42859 Remscheid Heizeinrichtung mit einem wassergekühlten Brenner

Also Published As

Publication number Publication date
IT1299548B1 (it) 2000-03-16
EP0971195A3 (de) 2000-08-02
ITRM980452A1 (it) 2000-01-06
ITRM980452A0 (it) 1998-07-06

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