EP2158433A1 - Appareil réfrigérant - Google Patents

Appareil réfrigérant

Info

Publication number
EP2158433A1
EP2158433A1 EP08802904A EP08802904A EP2158433A1 EP 2158433 A1 EP2158433 A1 EP 2158433A1 EP 08802904 A EP08802904 A EP 08802904A EP 08802904 A EP08802904 A EP 08802904A EP 2158433 A1 EP2158433 A1 EP 2158433A1
Authority
EP
European Patent Office
Prior art keywords
heat exchange
tube
plug
exchange body
appliance according
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Withdrawn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
EP08802904A
Other languages
German (de)
English (en)
Inventor
Tetyana Lapchenko
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 EP2158433A1 publication Critical patent/EP2158433A1/fr
Withdrawn legal-status Critical Current

Links

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
    • 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
    • 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
    • F25B39/02—Evaporators
    • 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
    • F28D1/0233—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 air flow 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
    • F28F1/14—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 longitudinally
    • F28F1/20—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 longitudinally the means being attachable to the element

Definitions

  • the invention relates to a refrigerator according to the preamble of claim 1.
  • a condenser In refrigerators with a refrigerant circuit usually at least one evaporator is provided in the interior, is conducted in the very cold refrigerant. Heat is taken from the interior of the refrigeration device via this evaporator and removed with the refrigerant. The refrigerant is compressed by a compressor and heats up. On the outside of the refrigerator, a condenser is provided, in which the hot refrigerant is cooled and thereby liquefied again. The heat energy from the refrigerant is released into the ambient air. Both the evaporator and the condenser thus act as a heat exchanger.
  • the invention has for its object to provide a refrigerator with a refrigerant circuit with a heat exchanger, which provides a high heat exchange performance and is still inexpensive to manufacture.
  • the object is achieved according to the invention by a refrigeration device with the features of claim 1.
  • the connected to the refrigerant pipe body is to increase the surface of the tube, so that much heat either absorbed from the environment or can be delivered to the environment. But in order to be able to ensure a good heat transfer between the body and the pipe, the largest possible contact between the body and the tube must exist.
  • the tube is either bent so that it runs around the body, or the tube runs inside the body.
  • the body is cylindrical.
  • a cylindrical Outside contour is ensured in a guided around the outside of the body tube that the tube does not have to be kinked in order to be brought into intimate contact with the body can.
  • a guided inside the body tube are all points of the outer contour of the body equidistant from the tube, so that a very uniform heat radiation comes to pass.
  • the body has a hub along the central longitudinal axis of the cylinder and a plurality of spokes.
  • the heat-exchangeable surface of the body can be further increased.
  • the diameter of the cylindrical body can be found for the number of spokes an optimum, because although the heat exchangeable surface is increased with a large number of spokes, with too little distance between the spokes but mutual interference takes place, so that the heat exchange performance of the individual Can reduce spokes.
  • the surface can be further enlarged if the hub is hollow.
  • other concentric rings could connect the spokes to each other.
  • the outer ends of the spokes may be connected to the sections of a cylinder jacket. These may be individual sections, but the sections may also form a closed ring.
  • the spokes may be connected to the sections in such a way that the outer edges of the spokes run along the central axes of the individual sections. However, the spokes may also be connected to a respective side edge of a portion of the cylinder jacket. In this way, each section looks like a kinked extension of each spoke.
  • the bodies are advantageously constructed so that they can be produced as an extruded profile.
  • the production costs of the body can be kept very low in this way.
  • the tube is helically wound around the body and thus forms a right-handed or left-handed coiled tubing. The uniform distance between the individual pipe turns ensures the uniform heat exchange.
  • the contact surface between the circulating tube and the arranged inside the tube turns body should be as large as possible.
  • a correspondingly constructed heat exchanger has in a particularly advantageous manner a plurality of juxtaposed body.
  • the central longitudinal axes of the individual bodies are parallel. If the central longitudinal axes of the individual bodies are additionally in one plane, the heat exchanger has the outer contour of a plane-parallel plate and can be attached, for example, as a condenser to the rear wall of a refrigeration device. In the other case, however, the heat exchanger can also be bent so that it adapts, for example, to the contour of a freezer compartment and assumes the function of an evaporator here.
  • the tube is wound around a body from the bottom up and around the body arranged next to it from top to bottom. In this way, only very short pieces of pipe between the individual bodies remain without contact to one of these bodies and there is a high efficiency of the heat exchanger.
  • the body In a heat exchanger with guided inside the body tube, the body should surround the tube as far as possible, so as large as possible contact between the body and tube is made. On the other hand, it represents a huge simplification in the manufacture of the heat exchanger, if the body can be fixed to the pipe after bending the pipe, but no further fastening means are necessary to ensure a firm connection between the pipe and the body. This firm connection is ensured when the body encloses the tube over an angle of more than 180 °. When using an elastic material for the production of The body can be snapped onto the pipe and remains securely in this position. Depending on the elasticity of the material, the enclosure angle can be up to 360 °. It should be noted that the contact area between the body and the tube with a larger enclosure angle also increases and thus also increases the heat transfer performance.
  • the tube extends within the hollow hub of the cylindrical body.
  • the hub thus abuts the entire surface of the tube and thus ensures excellent heat transfer from the tube to the body or from the body to the tube.
  • the hub is slotted according to the invention along its longitudinal axis.
  • the body can simply be attached to the pipe in this way, without the pipe must be pushed through the body.
  • the tube can run in a known manner looped with curved and straight sections.
  • the straight sections of the tube each pass through the hollow hub of a body and are aligned parallel to each other.
  • the radius of the bent portions is designed to be slightly larger than the radius of the cylindrical bodies, so that they have a distance from one another. In this way, on the one hand, it is easier to attach to the straight sections of the pipe and, on the other hand, to improve the heat exchange with the ambient air.
  • Fig. 1 a coiled heat exchanger in different views
  • Fig. 2 is a loop heat exchanger in different views
  • the coiled heat exchanger 1 shown in Fig. 1 is composed of four individual ones Pipe helices 8 joined together. It was used here alternately right and left-handed coiled tubing.
  • the tube 6 is bent in the form of a spiral spring, wherein in each case at the upper and lower end a straight endpiece remains.
  • the upper and lower straight lugs point in opposite directions.
  • a sleeve 7 is used in each case.
  • the coiled heat exchanger 1 can be constructed from any number of tube coils 8. Since only two different types of coiled tubing 8, namely right-handed and left-handed coiled tubing are used, the manufacturing costs can be kept low. Due to the modular structure of the coiled heat exchanger 1 can be adapted by the combination of any number of tube coils 8 to different types of refrigerators.
  • plug-in heat exchange body 2 - 5 are inserted into the individual coiled tubing.
  • Fig. 1 four different embodiments of such plug-in heat exchange body are shown.
  • the plug-in heat exchange body 2 used on the left side has a hollow hub 11 and four support spokes 9 arranged crosswise thereon.
  • four heat exchange spokes 10 are additionally connected to the hollow hub 11.
  • These heat exchange spokes 10 have no support function.
  • the main focus in material selection can therefore be placed on the ability to exchange heat energy as effectively as possible with the ambient air. In particular, materials with a very large surface area are suitable here.
  • the plug-in heat exchange body 2 has no lateral surface. Consequently, only the free ends of the support spokes 9 and the heat exchange spokes 10 are in contact with the tube 6.
  • the contact area between plug-in heat exchange body 2 and tube 6 remains relatively small in this embodiment, so that the tube 6 can be flowed over a large area of the ambient air.
  • the support spokes 9 and the heat exchange spokes 10 are secured to the hollow hub 1 1, these are in the Plug-in heat exchange body 3 connected to a closed cylinder jacket 12.
  • a hub is not provided in this embodiment.
  • the free inner ends of the support spokes 9 and heat exchange spokes 10 can touch, but are not connected to each other.
  • the tube coil 8 lies with its inner side completely against the cylinder jacket 12. This results in a good heat transfer between the tube 6 and the plug-in heat exchange body.
  • the cylinder jacket consists only of shell portions 13 which are at a distance from each other. This results in a cylinder jacket with vertical slots extending along the central longitudinal axis of the plug-in heat exchange body 4 and 4.
  • a hollow hub 1 1 is provided, which is connected to support spokes 9.
  • the support spokes 9 are in turn connected to the shell sections 13 in connection, so that there is a continuous thermally conductive connection of the hollow hub 11 via the support spokes 9 to the shell sections 13.
  • the support spokes 9 While in the plug-in heat exchange body 4, the support spokes 9 are each connected to the lateral edge of a jacket portion 13, the support spokes 9 are in the plug-in heat exchange body 5 with the shell portions 13 along the central axis in connection. Also, the number of support spokes 9 and the associated jacket sections 13 can be varied. Thus, the hollow hub 11 is connected to the plug-in heat exchange body 4 with four support spokes 9 and the plug-in heat exchange body 5 with five support spokes.
  • the tube 6 is bent so that parallel straight sections are formed, which are connected to each other via curved sections. On the straight sections of the tube 6 Aufsteck-heat exchange body 15, 16 attached. These too
  • Plug-on heat exchange body can be designed very different.
  • spokes 17 are connected to an open hollow hub 18.
  • Each spoke 17 is centrally connected at its free outer end with a jacket portion 19 so that a lateral surface is formed, which is interrupted by a plurality of vertical slots.
  • the open hollow hub 18 has an opening 20, with which the plug-on heat exchange body can be plugged onto the straight portion of the tube 6. In the region of this opening 18 no spokes 17 are attached to the open hollow hub.
  • the width of the opening 20 is designed slightly smaller than the diameter of the tube 6, so that the attachment of the plug-on heat exchange body 15 is designed in the manner of a clip closure.
  • the slip-on heat exchange body 15 are ideally oriented so that the wedge-shaped cutouts in the lateral surface turn in the same direction and the bisector of the wedge-shaped cut intersects the central longitudinal axis of the adjacent slip-on heat exchange body. In this way, the plug-on heat exchange body 15 can be dimensioned so that the circumferential lines of adjacent plug-on heat exchange body 15 overlap.
  • the plug-on heat exchange body 16 differ from the plug-on heat exchange bodies 15 by the absence of the shell sections 19. Although the available heat exchange surface is smaller, however, the air exchange between the individual spokes 17 is improved.
  • a fan can additionally be installed above or below the heat exchanger.
  • a cross-flow fan since it allows the air flow can be easily adapted to the shape of the heat exchanger.

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)

Abstract

L'invention concerne un appareil réfrigérant comprenant un circuit de fluide réfrigérant avec un générateur de froid et au moins un échangeur de chaleur (1, 14), qui présente un tube (6) conduisant le fluide réfrigérant et un corps d'échange thermique (2-5, 15, 16) connecté à celui-ci par conduction thermique. Selon l'invention, le tube (6) est posé autour d'un corps d'échange thermique enfichable (2-5) ou le tube (6) s'étend à l'intérieur d'un corps d'échange thermique enfichable (15, 16).
EP08802904A 2007-06-25 2008-06-12 Appareil réfrigérant Withdrawn EP2158433A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710029179 DE102007029179A1 (de) 2007-06-25 2007-06-25 Kältegerät
PCT/EP2008/057423 WO2009000669A1 (fr) 2007-06-25 2008-06-12 Appareil réfrigérant

Publications (1)

Publication Number Publication Date
EP2158433A1 true EP2158433A1 (fr) 2010-03-03

Family

ID=39684437

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08802904A Withdrawn EP2158433A1 (fr) 2007-06-25 2008-06-12 Appareil réfrigérant

Country Status (5)

Country Link
EP (1) EP2158433A1 (fr)
CN (1) CN101688712A (fr)
DE (1) DE102007029179A1 (fr)
RU (1) RU2009147174A (fr)
WO (1) WO2009000669A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EA028004B1 (ru) * 2015-04-07 2017-09-29 Илья Борисович НАЛИЧАЕВ Осветительная установка
CN105318767A (zh) * 2015-08-15 2016-02-10 何家密 主动式热交换以及其应用

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3877128A (en) * 1969-01-21 1975-04-15 Airco Inc Method of producing a finned tube heat exchanger
FR2437595A1 (fr) * 1978-09-27 1980-04-25 Applic Gaz Sa Echangeur de temperature et refrigerateur comportant un tel dispositif
CH648401A5 (de) * 1980-07-10 1985-03-15 Cryomec Ag Waermeaustauscher.
KR100308449B1 (ko) * 1998-06-30 2001-11-30 전주범 냉장고용콘덴서
US7140425B2 (en) * 2001-05-01 2006-11-28 Julian Romero-Beltran Plate-tube type heat exchanger
JP3947744B2 (ja) * 2003-04-30 2007-07-25 株式會社韓國邦迪 コイル型フィンチューブ凝縮機
US20100043464A1 (en) * 2005-08-02 2010-02-25 Solacoil Pty Ltd Heat Pump and Method of Heating Fluid

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2009000669A1 *

Also Published As

Publication number Publication date
CN101688712A (zh) 2010-03-31
DE102007029179A1 (de) 2009-01-08
WO2009000669A1 (fr) 2008-12-31
RU2009147174A (ru) 2011-07-27

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