EP2104809A2 - Échangeur thermique - Google Patents

Échangeur thermique

Info

Publication number
EP2104809A2
EP2104809A2 EP07848048A EP07848048A EP2104809A2 EP 2104809 A2 EP2104809 A2 EP 2104809A2 EP 07848048 A EP07848048 A EP 07848048A EP 07848048 A EP07848048 A EP 07848048A EP 2104809 A2 EP2104809 A2 EP 2104809A2
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
elements
exchanger according
exchanger elements
notches
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Withdrawn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
EP07848048A
Other languages
German (de)
English (en)
Inventor
Detlef Cieslik
Jochen HÄRLEN
Michaela Malisi
Berthold Pflomm
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP2104809A2 publication Critical patent/EP2104809A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • 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
    • 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
    • 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
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
    • F28F9/0132—Auxiliary supports for elements for tubes or tube-assemblies formed by slats, tie-rods, articulated or expandable rods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00—Problems to be solved
    • F25B2500/13—Vibrations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/006—General constructional features for mounting refrigerating machinery components
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2321/00—Details or arrangements for defrosting; Preventing frosting; Removing condensed or defrost water, not provided for in other groups of this subclass
    • F25D2321/14—Collecting condense or defrost water; Removing condense or defrost water
    • F25D2321/141—Removal by evaporation
    • F25D2321/1411—Removal by evaporation using compressor heat

Definitions

  • the present invention relates to a heat exchanger, in particular for use as a condenser or evaporator in a household refrigerator.
  • Conventional household refrigerators in cold-wall construction generally have an evaporator in the form of a large-sized plate, which is arranged on a rear wall of the refrigerator between the inner container and insulating material layer, and also a plate-shaped condenser, which is mounted on the outside of the rear wall of the device.
  • a heat exchange takes place in a pipe of circulating refrigerant and air, either ambient air or the air of the interior of the refrigerator.
  • the low power density of the heat exchangers requires large dimensions.
  • the aim of the present invention is to provide a heat exchanger which combines a compact construction with good dimensional stability.
  • the object is achieved in that, in a heat exchanger having a plurality of plate-shaped heat exchanger elements connected in series, a stabilizing element extending transversely to the heat exchanger elements and provided with a plurality of notches is provided in which a heat exchanger element engages in each notch.
  • the series connection between the heat exchanger elements may each be formed by a tube which extends integrally over the heat exchanger elements and between them.
  • the heat exchanger elements preferably each have at least one open-edged recess into which the stabilizing element engages.
  • a heat exchanger with a particularly compact outer shape can be realized.
  • the notches of the stabilizing element are arranged in pairs opposite each other on two sides of the stabilizing element and engage opposite edges of the recess of one of the heat exchanger elements in the two notches of a pair. The opposite edges make it difficult to accidentally slide the stabilizing element of the heat exchanger elements.
  • An engaging in one of the notches portion of at least one of the heat exchanger elements is preferably formed by a pipe section of this heat exchanger element.
  • such a heat exchanger element is designed in the manner of a wire tube evaporator, that is, it comprises a plurality of serially connected, extending in a first direction pipe sections and a plurality of connected to the pipe sections to a grid surface wires.
  • An open-edged recess which receives the stabilizing element, can on such a heat exchanger element by be bounded one of the wires and two over the grid surface projecting and connecting each two of the pipe sections pipe bends.
  • two stabilizing elements are preferably arranged opposite one another on opposite sides of the heat exchanger elements.
  • the stabilizing elements simplify the attachment of the heat exchanger elements in a housing.
  • a housing is preferably open on two sides to allow for forced ventilation.
  • a fan may be attached to one of the open sides of the housing for this purpose.
  • a ceiling and a bottom of the housing may be formed as evaporation trays.
  • the two evaporation trays are suitably connected by an overflow.
  • a pipe loop immersed in one of the evaporation trays may be connected in series with the heat exchange elements.
  • Figure 1 is a perspective view of a refrigerator according to the invention, as seen from the back of its housing.
  • Figure 2 is a schematic view of the condenser assembly of the refrigeration device of Fig. 1.
  • Fig. 3 is a perspective view of the condenser
  • Fig. 4, 5 are each perspective views of stabilizing elements of the condenser
  • Fig. 6 shows the condenser in combination with the stabilizing elements
  • Fig. 7 is a perspective view of the top of a condenser receiving frame.
  • Fig. 8 is a perspective view of the lower part of the frame.
  • Fig. 1 shows a rear view of a household refrigerator such as a refrigerator or a freezer.
  • a niche 1 open to the rear, towards the viewer, through which a cross member 2 attached to the side walls of the housing extends.
  • a compressor 3 and a condenser 4 are mounted on this cross member.
  • a compressor 3 facing side of the housing 4 is open.
  • the condenser 4 is closed by an end wall 5 to a passage on which a fan 6 is arranged.
  • the end wall 5 closes on the one hand tight against a rear wall 7 of the housing 4;
  • an opposite edge of the end wall 5 touches a not visible in the figure vertical insulating wall between the niche 1 and the interior of the refrigerator.
  • FIG. 2 A view of the condenser assembly from the opposite direction, relative to the refrigerator housing from the front, is shown in Fig. 2.
  • the condenser housing 4 is open to the front of the device, and a Drahtroh rvermillioner 8 in its interior can be seen.
  • a cold center tube 9 of the condenser 8 forms a plurality of plate-like sections 1 1 arranged parallel to one another, in each case integrally connected by 180 ° bends 12, 13 straight pipe sections parallel to the viewing direction of Fig. 2 extend.
  • the plate-shaped portions 1 1 are stiffened in a conventional manner by soldered to the rectilinear pipe sections wires 14, wherein the 180 ° -bows 12, 13 respectively over the edges of a formed by the pipe sections and the wires 14 rectangular grid surface. So have the plate-shaped sections at opposite edges in each case a plurality of recesses which are each bounded by two pipe bends 12 or 13 and extending between these elbows wire.
  • a columnar stabilizing element 15 engages from the front in such a recess between two front sheets 12 of each plate-shaped portion 1 1 a.
  • the stabilizing element 15 is provided with a plurality of pairs opposing slots 16, in each of which parts of the adjacent sheets 12 of a portion 1 1 engage.
  • a corresponding stabilizing element 17 engages from the rear in a corresponding recess between the rear sheets 13 of the plate-shaped sections 1 1 a.
  • the stabilizing elements 15, 17 are shown in Figures 4, 5 each in a perspective view. They are hollow bodies of two shells assembled along a vertical plane.
  • the stabilizing element 15 carries on an outer side a vertical web 18, whose width increases from top to bottom, so that the web 18 snugly against the niche 1 from the interior of the refrigerator separating, not completely vertical wall hugs.
  • the stabilizing element 17 also carries an outwardly directed, the rear wall 7 facing web 19 which is interrupted in the middle to follow the contour of the rear wall 7.
  • Both stabilizing elements 15, 17 carry the webs 18 and 19 opposite in the Drahtrohrvermillioner 8 engaging webs 20, which reduce the free air passage cross-section of the condenser 8 and bundle a driven by the fan 6 air flow in the center of the condenser 8.
  • Fig. 6 shows a perspective view of the complete Drahtrohrvermeterers 8 together with the inserted from the side stabilization elements 17, 19.
  • a dryer cartridge 21 is inserted in the path of the refrigerant, the other end is through a extending below the condenser 8 extending loop 22.
  • the condenser 8 receiving housing 4 is composed of two plastic moldings shown in Fig. 7 and 8, respectively.
  • the upper molded part 23 shown in FIG. 7 comprises the end wall 5, the rear wall 7 and a cover of the condenser housing 4 designed as an evaporation shell 24.
  • one-piece protruding hollow pins 25 serve for positioning of the fan 6, not shown in Fig. 7 in front of a central opening 26 of the end wall 5.
  • a horizontal rib 27 projects into the interior of the housing 4. It serves together with a complementary groove 28 of the lower mold part 29 shown in FIG. 9 for fixing the height of the upper mold part 23 at the lower 29th
  • an opening 45 surrounded by a wall 30 is formed near the rear edge thereof.
  • the rear wall 7 has a projecting into the interior of the condenser 4 central portion 31 which is connected at its lower edge to a lower portion 32 of the wall by a rising wall piece 33.
  • the upper edges of two elongate ribs 36 projecting from the bottom of the evaporation pan 35 serve as a support surface for the wire tube condenser 8.
  • Curved ribs 37 which are higher than the elongate ribs 36 serve as lateral stops defining the position of the wire tube condenser 8 in the horizontal direction.
  • Two hooks 38 are provided to engage behind pipe sections of the bottom plate-shaped portion 1 1 of the Drahtrohrvermeteriqueers 8 and to fix it to the lower evaporation tray 35.
  • the shape and placement of the ribs 36, 37 are each chosen so as to allow placement of the loop 22 near the bottom of the evaporation tray 35.
  • the already mentioned horizontal groove 28 is formed by a plurality of outwardly directed hooks 39 on an end wall 40 of the shell 35 facing away from the observer in FIG. 8.
  • An outer wall 41 of the shell 35 facing the viewer has an indentation 42, the walls of which, in the assembled state, engage in two notches 43 of the lower section 32 of the rear wall 7 and thus the upper molded part 23 support.
  • a hook 44 formed at the level of the recess 42 on the outer wall 41 is provided to engage in an opening 45 of the lower portion 32 and thus to lock the two mold parts 23, 29 together.

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)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

L'invention concerne un échangeur thermique comportant une pluralité d'éléments d'échangeur thermique (11) en forme de plaque, connectés en série. Au moins un élément de stabilisation (15, 17) s'étendant perpendiculairement par rapport aux éléments d'échangeur thermique (11) est pourvu d'une pluralité d'encoches (16). Un élément d'échangeur thermique (11) s'encastre dans chaque encoche (16).
EP07848048A 2006-12-22 2007-12-11 Échangeur thermique Withdrawn EP2104809A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006061097A DE102006061097A1 (de) 2006-12-22 2006-12-22 Wärmetauscher
PCT/EP2007/063660 WO2008077762A2 (fr) 2006-12-22 2007-12-11 Échangeur thermique

Publications (1)

Publication Number Publication Date
EP2104809A2 true EP2104809A2 (fr) 2009-09-30

Family

ID=39272828

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07848048A Withdrawn EP2104809A2 (fr) 2006-12-22 2007-12-11 Échangeur thermique

Country Status (5)

Country Link
EP (1) EP2104809A2 (fr)
CN (1) CN101568775B (fr)
DE (1) DE102006061097A1 (fr)
RU (1) RU2464515C2 (fr)
WO (1) WO2008077762A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202007014887U1 (de) * 2007-10-05 2009-02-19 Liebherr-Hausgeräte Ochsenhausen GmbH Kühl- und/oder Gefriergerät
EP4361538A1 (fr) 2022-10-27 2024-05-01 Arçelik Anonim Sirketi Dispositif de refroidissement comprenant un support de tuyau

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3285334A (en) * 1961-12-11 1966-11-15 Peerless Of America Integral dual-passage heat exchange tubing with reverse bends
US4984435A (en) * 1989-02-16 1991-01-15 Dairei Co. Ltd. Brine refrigerating apparatus
RU2076996C1 (ru) * 1993-05-12 1997-04-10 Акционерное общество "Белгородский завод энергетического машиностроения" Котел
JPH0719713A (ja) * 1993-06-30 1995-01-20 Sanyo Electric Co Ltd 冷凍冷蔵ショーケースのドレン水蒸発装置
JP2002364946A (ja) * 2001-06-07 2002-12-18 Sanoh Industrial Co Ltd 強制空冷用コンデンサ
CN1302248C (zh) * 2002-10-10 2007-02-28 维尼亚万都株式会社 螺旋式热交换装置
DE102004024397A1 (de) * 2004-05-17 2005-12-08 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät und Verdampfer dafür
US20060108107A1 (en) * 2004-11-19 2006-05-25 Advanced Heat Transfer, Llc Wound layered tube heat exchanger

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008077762A3 *

Also Published As

Publication number Publication date
RU2009123138A (ru) 2011-01-27
WO2008077762A3 (fr) 2008-09-25
CN101568775A (zh) 2009-10-28
WO2008077762A2 (fr) 2008-07-03
CN101568775B (zh) 2013-08-14
RU2464515C2 (ru) 2012-10-20
DE102006061097A1 (de) 2008-06-26

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