EP2347197B1 - Structure tubulaire d'aspiration-étranglement, évaporateur utilisant cette structure et appareil réfrigérant ménager muni de la structure tubulaire d'aspiration-étranglement ou d'un évaporateur utilisant cette structure - Google Patents

Structure tubulaire d'aspiration-étranglement, évaporateur utilisant cette structure et appareil réfrigérant ménager muni de la structure tubulaire d'aspiration-étranglement ou d'un évaporateur utilisant cette structure Download PDF

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Publication number
EP2347197B1
EP2347197B1 EP09763891.0A EP09763891A EP2347197B1 EP 2347197 B1 EP2347197 B1 EP 2347197B1 EP 09763891 A EP09763891 A EP 09763891A EP 2347197 B1 EP2347197 B1 EP 2347197B1
Authority
EP
European Patent Office
Prior art keywords
suction
evaporator
capillary tube
tube construction
tube
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.)
Active
Application number
EP09763891.0A
Other languages
German (de)
English (en)
Other versions
EP2347197A1 (fr
Inventor
Gunter Grittner
Tetyana Lapchenko
Holger Moch
Berthold Pflomm
Walter Woldenberg
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 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.)
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Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Priority to PL09763891T priority Critical patent/PL2347197T3/pl
Publication of EP2347197A1 publication Critical patent/EP2347197A1/fr
Application granted granted Critical
Publication of EP2347197B1 publication Critical patent/EP2347197B1/fr
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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
    • F28D7/0008—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 for one medium being in heat conductive contact with the conduits for the other medium
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/37—Capillary tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
    • F28F19/04—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings of rubber; of plastics material; of varnish
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/05—Compression system with heat exchange between particular parts of the system
    • F25B2400/052—Compression system with heat exchange between particular parts of the system between the capillary tube and another part of the refrigeration cycle
    • 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
    • F25B39/022—Evaporators with plate-like or laminated elements
    • F25B39/024—Evaporators with plate-like or laminated elements with elements constructed in the shape of a hollow panel

Definitions

  • the present invention relates to a suction throttle pipe assembly for a refrigerator and an evaporator, in which such a structure is used, or a household refrigerator with a suction throttle pipe assembly or with an evaporator.
  • a conventional plate type evaporator includes a base plate on which a refrigerant pipe passes, and a throttle pipe via which the refrigerant pipe is fed with compressed refrigerant, and a suction pipe for sucking the refrigerant expanded and heated in the evaporator.
  • a suction throttle tube assembly according to the preamble of claim 1 is known, wherein the capillary and one of the suction tubes is surrounded by an adhesive layer only at the junctions of suction tubes, where a capillary tube is inserted.
  • the object of the present invention is therefore to specify a suction throttle pipe construction in which contact corrosion of the pipes is reliably prevented, without the efficiency of the heat exchange between the pipes being appreciably impaired as a result.
  • the object is achieved by providing, in a suction throttle pipe construction with a suction pipe and a throttle pipe in contact with each other and consisting of two different metals at least one of the tubes with an electrically insulating plastic coating which is mounted as a continuous layer on a pipe , Such a plastic coating is easy to remove, so that it can be mounted as a continuous layer on a pipe from which subsequently throttle pipes can be cut in the required length.
  • the plastic coating is a lacquer layer, as conventionally used in the production of electrically insulated enameled wires.
  • the plastic coating in particular such a coating layer, preferably contains a polymer material selected from polyesters, polyurethanes, polyamides, polyimides, their mixtures and copolymers.
  • the thickness of the plastic coating is low, preferably at most about 50 microns, so that the heat transfer between the two tubes is not significantly affected by the presence of the plastic layer.
  • the plastic coating on the throttle tube in particular only on this, attached.
  • a smaller amount of coating material is needed for the coating of the throttle tube than for the coating of the substantially further suction tube;
  • known techniques for painting wire can be transferred to the painting of the thin, flexible throttle tube without significant adjustments.
  • suction tube and throttle tube are preferably held together by an adhesive tape.
  • an adhesive tape In order to ensure a long-term stability of the bond, it is preferable to use a metal adhesive tape, in particular an aluminum adhesive tape.
  • the plastic coating of the throttle tube is preferably mechanically removed at a connection thereof to the evaporator plate.
  • the use of heat or solvents would be considered in principle for the removal of such coatings, but it is difficult to ensure that no solvent residues or possibly chemically aggressive combustion residues of the plastic coating on or in the throttle tube remain, the later of the trigger of corrosion or Leaking or could clog the throttle pipe.
  • Fig. 1 shows in cross-section a throttle pipe or capillary 1 made of copper for the supply of an evaporator with compressed refrigerant and the throttle tube 1 is covered over its entire circumference by an electrically insulating paint layer 2.
  • Suitable for the production of the lacquer layer 2 is any lacquer which can also be used for the production of electrically insulated enameled wires, in particular based on polyester, polyurethane, polyamide, polyimide, mixtures or copolymers thereof.
  • the lacquer layer 2 with a thickness of typically at most approximately 50 micrometers is flexible, so that the throttle tube 1 can be bent as needed without the lacquer layer 2 jumping off.
  • a suction tube 3 made of aluminum, whose diameter is greater by a multiple than that of the throttle tube 1.
  • An aluminum adhesive tape 4 adheres along its longitudinal edges on the suction tube 3, while a central portion of the adhesive tape 4 wraps around the throttle tube 1 and keeps it pressed against the suction tube 3. This ensures intimate thermal contact between the pipes 1, 3.
  • the suction tube 3 is uncoated.
  • Condensation which can be reflected outside the suction tube 3 under certain operating conditions, is kept away from the throttle tube 1 by the lacquer layer 2, so that the formation of a galvanic cell between the aluminum of the suction tube 3 and the copper of the throttle tube 1 is excluded.
  • Fig. 2 shows - partially cut - a fragment of a heat exchanger with a base plate 5 and inlet and outlet sections 6, 7 of a soldered on the base plate 5 refrigerant tube 8.
  • the refrigerant tube 8 is shown in a section parallel to the base plate 5. Its inlet section 6 can be tapered in order to receive a form-fitting part of an end section 9 of the throttle tube which has been freed from the lacquer layer 2;
  • the cross-section of the refrigerant tube 8 on the entire base plate 5 is constant, and a tight connection of the throttle tube 1 is made by an adapter body 10 which is provided to be inserted tightly into the inlet portion 6 and in turn the end portion 9 in one to accommodate the inner bore 11 tight.
  • the throttle tube 1 is cut from a continuously painted, long tube in the required length. It must therefore be eliminated before mounting the throttle tube 1, the paint layer 2 in the end portion 9. This is done by mechanical means, for example by grinding or twisting. A stripping of the paint layer when pushing through the end portion 9 by a tightly tolerated opening comes into consideration.
  • This opening may in particular be the bore 11 of the adapter body 10; a sealing soldering of the end portion 9 on the adapter body can then take place at the inlet portion 6 facing side of the adapter body 10, around a protruding tip of the end portion 9 around. Subsequently, the adapter body 10 is in turn inserted into the inlet section 6 and soldered thereto.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Paints Or Removers (AREA)
  • Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
  • Laminated Bodies (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Claims (10)

  1. Structure tubulaire d'aspiration-étranglement pour un appareil frigorifique, en particulier un appareil frigorifique ménager, avec un tuyau d'aspiration (3) et un tuyau d'étranglement (1), s'étendant au moins par sections en contact l'un avec l'autre et composés de deux métaux différents, caractérisée en ce qu'au moins l'un des tuyaux (1) est doté d'un revêtement en matière synthétique (2) électriquement isolant, apposé sous la forme d'une couche continue sur l'un des tuyaux (1).
  2. Structure tubulaire d'aspiration-étranglement selon la revendication 1, caractérisée en ce que le tuyau d'aspiration (3) est fabriqué en aluminium et le tuyau d'étranglement (1) en cuivre.
  3. Structure tubulaire d'aspiration-étranglement selon la revendication 1 ou 2, caractérisée en ce que l'au moins un tuyau (1) doté du revêtement en matière synthétique est le tuyau d'étranglement (1).
  4. Structure tubulaire d'aspiration-étranglement selon l'une des revendications précédentes, caractérisée en ce que le revêtement en matière synthétique (2) est une couche de vernis.
  5. Structure tubulaire d'aspiration-étranglement selon l'une des revendications précédentes, caractérisée en ce que le revêtement en matière synthétique (2) contient un matériau polymère sélectionné parmi les polyesters, les polyuréthanes, les polyamides, les polyimides, leurs mélanges et copolymères.
  6. Structure tubulaire d'aspiration-étranglement selon l'une des revendications précédentes, caractérisée en ce que le tuyau d'aspiration (3) et le tuyau d'étranglement (1) sont maintenus ensemble par une bande adhésive métallique (4).
  7. Évaporateur pour appareils frigorifiques, en particulier appareils frigorifiques ménagers, avec une plaque d'évaporateur et une structure tubulaire d'aspiration-étranglement selon l'une des revendications précédentes, caractérisé en ce que le revêtement en matière synthétique (2) est fixé mécaniquement en un raccordement (6) du tuyau d'étranglement (1) à la plaque d'évaporateur.
  8. Évaporateur selon la revendication 7, caractérisé en ce que la plaque d'évaporateur englobe une plaque de base (5) et un tuyau à agent frigorifique (8) fixé sur la plaque de base (5).
  9. Appareil frigorifique, en particulier appareil frigorifique ménager, caractérisé par une structure tubulaire d'aspiration-étranglement selon l'une des revendications 1 à 6.
  10. Appareil frigorifique, en particulier appareil frigorifique ménager, caractérisé par un évaporateur selon l'une des revendications 7 ou 8.
EP09763891.0A 2008-11-11 2009-11-06 Structure tubulaire d'aspiration-étranglement, évaporateur utilisant cette structure et appareil réfrigérant ménager muni de la structure tubulaire d'aspiration-étranglement ou d'un évaporateur utilisant cette structure Active EP2347197B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09763891T PL2347197T3 (pl) 2008-11-11 2009-11-06 Konstrukcja rury ssawno-kapilarnej, wykorzystujący ją parownik i urządzenie chłodnicze gospodarstwa domowego z konstrukcją rury ssawno-kapilarnej bądź z wykorzystującym ją parownikiem

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008043653A DE102008043653A1 (de) 2008-11-11 2008-11-11 Saug-Drosselrohraufbau, einen diesen verwendender Verdampfer und ein Haushaltskältegerät mit dem Saug-Drosselrohraufbau bzw. mit einem diesen verwendenden Verdampfer
PCT/EP2009/064772 WO2010054993A1 (fr) 2008-11-11 2009-11-06 Structure tubulaire d'aspiration-étranglement, évaporateur utilisant cette structure et appareil réfrigérant ménager muni de la structure tubulaire d'aspiration-étranglement ou d'un évaporateur utilisant cette structure

Publications (2)

Publication Number Publication Date
EP2347197A1 EP2347197A1 (fr) 2011-07-27
EP2347197B1 true EP2347197B1 (fr) 2019-01-09

Family

ID=41818450

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09763891.0A Active EP2347197B1 (fr) 2008-11-11 2009-11-06 Structure tubulaire d'aspiration-étranglement, évaporateur utilisant cette structure et appareil réfrigérant ménager muni de la structure tubulaire d'aspiration-étranglement ou d'un évaporateur utilisant cette structure

Country Status (7)

Country Link
EP (1) EP2347197B1 (fr)
CN (1) CN102209870A (fr)
DE (1) DE102008043653A1 (fr)
PL (1) PL2347197T3 (fr)
RU (1) RU2516631C2 (fr)
TR (1) TR201901550T4 (fr)
WO (1) WO2010054993A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010029581A1 (de) * 2010-06-01 2011-12-01 BSH Bosch und Siemens Hausgeräte GmbH Saug-Drosselrohr für ein Kältegerät
DE102010027589A1 (de) * 2010-06-18 2011-12-22 Liebherr-Hausgeräte Ochsenhausen GmbH Haushaltsgerät
CN102287974B (zh) * 2011-05-05 2013-07-31 金龙精密铜管集团股份有限公司 一种覆塑毛细管
CN102798244A (zh) * 2012-09-11 2012-11-28 合肥美的荣事达电冰箱有限公司 一种用于冰箱的换热组件及冰箱
US9821420B2 (en) * 2014-01-16 2017-11-21 Whirlpool Corporation Method of forming a refrigeration heat exchanger
WO2016094809A1 (fr) * 2014-12-12 2016-06-16 Carrier Corporation Système de transfert de chaleur avec conduit de fluide revêtu
CN112432399B (zh) * 2020-12-08 2022-07-01 合肥美的暖通设备有限公司 空调系统

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DE1250845B (de) * 1967-09-28 Wieland-Werke Aktiengesellschaft, Ulm/Donau Verbindung bei Einrohranschlüssen von Kältemaschinenverdampfern
DE973828C (de) * 1953-10-01 1960-06-15 Gen Motors Corp Kaelteeinrichtung fuer Kuehlschraenke
DE1904245A1 (de) * 1969-01-29 1970-08-06 Ver Deutsche Metallwerke Ag Kapillarrohr-Anschlussstelle
SU544837A1 (ru) * 1975-05-22 1977-01-30 Предприятие П/Я Г-4778 Устройство дл ввода и вывода хладагента из испарител бытового холодильника
CA1106628A (fr) * 1976-10-27 1981-08-11 Robert B. Gelbard Echangeur de chaleur haut rendement pour groupe tube d'aspiration et capillaire de refrigeration
SU1190159A1 (ru) * 1984-05-03 1985-11-07 Muravev Yurij V Способ соединени капилл рной трубки с каналом испарител бытового компрессионного холодильника
JPH10132396A (ja) * 1996-10-31 1998-05-22 Hoshizaki Electric Co Ltd 熱交換装置
DE19907183A1 (de) * 1999-02-19 2000-08-24 Bsh Bosch Siemens Hausgeraete Verdampferplatine
GB2418478A (en) * 2004-09-24 2006-03-29 Ti Group Automotive Sys Ltd A heat exchanger
JP4980128B2 (ja) 2007-04-25 2012-07-18 三菱電機株式会社 熱交換器及びその熱交換器を用いた冷凍回路

Non-Patent Citations (1)

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Also Published As

Publication number Publication date
WO2010054993A1 (fr) 2010-05-20
PL2347197T3 (pl) 2019-08-30
RU2011120274A (ru) 2012-12-20
RU2516631C2 (ru) 2014-05-20
EP2347197A1 (fr) 2011-07-27
DE102008043653A1 (de) 2010-05-20
TR201901550T4 (tr) 2019-02-21
CN102209870A (zh) 2011-10-05

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