EP1746362A2 - Echangeur de chaleur entre réfrigérant et eau chaude sanitaire - Google Patents

Echangeur de chaleur entre réfrigérant et eau chaude sanitaire Download PDF

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Publication number
EP1746362A2
EP1746362A2 EP06450102A EP06450102A EP1746362A2 EP 1746362 A2 EP1746362 A2 EP 1746362A2 EP 06450102 A EP06450102 A EP 06450102A EP 06450102 A EP06450102 A EP 06450102A EP 1746362 A2 EP1746362 A2 EP 1746362A2
Authority
EP
European Patent Office
Prior art keywords
refrigerant
conduit
protective tube
heat exchanger
pipe
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Withdrawn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
EP06450102A
Other languages
German (de)
English (en)
Other versions
EP1746362A3 (fr
Inventor
Karl Dipl.-Ing. Ochsner
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1746362A2 publication Critical patent/EP1746362A2/fr
Publication of EP1746362A3 publication Critical patent/EP1746362A3/fr
Withdrawn legal-status Critical Current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
    • F28F1/003—Multiple wall conduits, e.g. for leak detection
    • 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
    • F24H1/18—Water-storage heaters
    • F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
    • F24H1/208—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes with tubes filled with heat transfer fluid
    • 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
    • F24H4/00—Fluid heaters characterised by the use of heat pumps
    • F24H4/02—Water heaters
    • F24H4/04—Storage heaters
    • 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
    • F28D1/0206—Heat exchangers immersed in a large body of liquid
    • F28D1/0213—Heat exchangers immersed in a large body of liquid for heating or cooling a liquid in a tank
    • 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
    • F28D1/0472—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 helically or spirally coiled
    • F28D1/0473—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 helically or spirally coiled the conduits having a non-circular cross-section

Definitions

  • the invention relates to a heat exchanger between a refrigerant of a heat pump and service water with a helically bent conduit for the refrigerant.
  • the invention is therefore an object of the invention to provide a heat exchanger between a refrigerant of a heat pump and service water, which manages without additional heat transfer and the required security offers that possibly occurring leakage of the refrigerant can not get into the hot water.
  • the invention solves this problem by the fact that the conduit for the refrigerant used with clearance in a protective tube and is flattened with the protective tube under a mutual engagement in a respect to the tube axis opposite peripheral region transverse to the screw axis.
  • the protective tube encloses the conduit for the refrigerant of the heat pump, any occurring leakage of the refrigerant is collected by the protective tube and therefore can not get into the service water, so that a direct heat exchange between the refrigerant and the service water is possible, if for a corresponding heat transfer provided by the conduit of the refrigerant to the protective tube.
  • This heat transfer is obtained in a simple manner in that the two tubes inserted into one another with play are pressed flat on opposite sides relative to the tube axis and, due to this deformation, lie flat against one another in opposite circumferential regions. These contact surfaces along the entire turns ensure sufficient heat transfer from the conduit for the refrigerant to the protective tube, via which the process water is heated.
  • the clearance between the two tubes allows for easy insertion of the conduit into the protective tube before the nested tubes are bent. This game is to be dimensioned so that a corresponding contact surface is achieved when squeezing the tubes.
  • the remaining space between the contiguous due to the common flattening tubes can be at least partially filled with a thermally conductive material to improve the heat transfer from the conduit to the protective tube in addition.
  • the conduit can first be inserted with clearance into a protective tube and then helically bent together with the protective tube, wherein the protective tube and the conduit are pressed against one another under a flattening transverse to the screw axis.
  • a hot water tank 1 is provided with an attached heat pump whose refrigerant circuit comprises a protruding into the hot water tank 1 heat exchanger 3.
  • This heat exchanger 3 has a helix in several turns coiled tube 4, which is composed as shown in FIG. 2 of an inner conduit 5 and an outer protective tube 6. Both the conduit 5 and the protective tube 6 are formed as smooth tubes. The arrangement is made such that the inner conduit 5, in which the heated in the heat pump 2 refrigerant flows, is used with play in the outer protective tube 6, but that due to a common flattening of the two tubes 5, 6 transverse to the screw axis.
  • the coil 4 includes a conduit 5 for the refrigerant of the heat pump enclosing the protective tube 6 so that in case of leakage of the conduit 5, the leakage is absorbed by the protective tube 6 and do not get into the hot water of the hot water tank 1 can.
  • accumulated leakage can also be detected to indicate the leakage of the refrigerant circuit.

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)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP06450102A 2005-07-22 2006-07-19 Echangeur de chaleur entre réfrigérant et eau chaude sanitaire Withdrawn EP1746362A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT12342005A AT502030B1 (de) 2005-07-22 2005-07-22 Wärmetauscher zwischen einem kältemittel einer wärmepumpe und brauchwasser

Publications (2)

Publication Number Publication Date
EP1746362A2 true EP1746362A2 (fr) 2007-01-24
EP1746362A3 EP1746362A3 (fr) 2008-05-28

Family

ID=37188766

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06450102A Withdrawn EP1746362A3 (fr) 2005-07-22 2006-07-19 Echangeur de chaleur entre réfrigérant et eau chaude sanitaire

Country Status (2)

Country Link
EP (1) EP1746362A3 (fr)
AT (1) AT502030B1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20110102A1 (it) * 2011-03-03 2012-09-04 Rossato Group S R L Sistema combinato in pompa di calore
US20170332513A1 (en) * 2016-05-10 2017-11-16 Remeha B.V. Heat exchanger
US10429084B2 (en) 2017-02-21 2019-10-01 A. O. Smith Corporation Heat pump water heater
CN112325486A (zh) * 2020-11-25 2021-02-05 珠海格力电器股份有限公司 热水器及其防冻加热件的确定方法、防冻控制方法
JP2021014971A (ja) * 2019-07-16 2021-02-12 ダイキン工業株式会社 貯留タンクユニット

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106052130A (zh) * 2016-06-30 2016-10-26 珠海格力电器股份有限公司 一种保温储液箱及热水器

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1281919A2 (fr) 2001-08-03 2003-02-05 M.F.s.r.l. Echangeur de chaleur spiroidale à haut rendement pour la préparation et/ou chauffage d'eau chaude sanitaire

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2441818A1 (fr) * 1978-11-15 1980-06-13 Collard Et A Trolart Sa G Perfectionnement aux echangeurs thermiques
DE7927266U1 (de) * 1979-09-26 1980-01-31 Fedder, Dieter, 4420 Coesfeld Kondensator fuer waermepumpen
NL8301019A (nl) * 1983-03-22 1984-10-16 Awb Bv Warmtewisselaar met lekdetectie.
DE3434481A1 (de) * 1984-09-20 1986-03-20 Küppersbusch AG, 4650 Gelsenkirchen Waermeerzeuger mit einem waermeuebertrager
US20040079522A1 (en) * 1995-11-13 2004-04-29 Roger Paulman Folded, bent and re-expanded heat exchanger tube and assemblies

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1281919A2 (fr) 2001-08-03 2003-02-05 M.F.s.r.l. Echangeur de chaleur spiroidale à haut rendement pour la préparation et/ou chauffage d'eau chaude sanitaire

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20110102A1 (it) * 2011-03-03 2012-09-04 Rossato Group S R L Sistema combinato in pompa di calore
US20170332513A1 (en) * 2016-05-10 2017-11-16 Remeha B.V. Heat exchanger
US10575434B2 (en) * 2016-05-10 2020-02-25 Remeha B.V. Heat exchanger
US10429084B2 (en) 2017-02-21 2019-10-01 A. O. Smith Corporation Heat pump water heater
JP2021014971A (ja) * 2019-07-16 2021-02-12 ダイキン工業株式会社 貯留タンクユニット
EP3998432A4 (fr) * 2019-07-16 2023-08-30 Daikin Industries, Ltd. Unité réservoir de stockage
CN112325486A (zh) * 2020-11-25 2021-02-05 珠海格力电器股份有限公司 热水器及其防冻加热件的确定方法、防冻控制方法

Also Published As

Publication number Publication date
AT502030A4 (de) 2007-01-15
AT502030B1 (de) 2007-01-15
EP1746362A3 (fr) 2008-05-28

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