EP2347197A1 - Saug-drosselrohraufbau, einen diesen verwendender verdampfer und ein haushaltskältegerät mit dem saug-drosselrohraufbau bzw. mit einem diesen verwendenden verdampfer - Google Patents
Saug-drosselrohraufbau, einen diesen verwendender verdampfer und ein haushaltskältegerät mit dem saug-drosselrohraufbau bzw. mit einem diesen verwendenden verdampferInfo
- Publication number
- EP2347197A1 EP2347197A1 EP09763891A EP09763891A EP2347197A1 EP 2347197 A1 EP2347197 A1 EP 2347197A1 EP 09763891 A EP09763891 A EP 09763891A EP 09763891 A EP09763891 A EP 09763891A EP 2347197 A1 EP2347197 A1 EP 2347197A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- suction
- throttle
- evaporator
- tube
- suction 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.)
- Granted
Links
- 238000010276 construction Methods 0.000 title abstract description 7
- 239000006223 plastic coating Substances 0.000 claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 7
- 150000002739 metals Chemical class 0.000 claims abstract description 5
- 239000003507 refrigerant Substances 0.000 claims description 14
- 239000004922 lacquer Substances 0.000 claims description 9
- 239000002390 adhesive tape Substances 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 239000004952 Polyamide Substances 0.000 claims description 3
- 239000004642 Polyimide Substances 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 239000002861 polymer material Substances 0.000 claims description 2
- 238000005057 refrigeration Methods 0.000 claims 4
- 239000010410 layer Substances 0.000 description 15
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 8
- 239000011701 zinc Substances 0.000 description 8
- 229910052725 zinc Inorganic materials 0.000 description 8
- 238000000576 coating method Methods 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 239000003973 paint Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
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 comprises 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 in the refrigerant
- Evaporators expanded and heated refrigerant. By placing the suction tube and the throttle tube in close thermal contact with each other, the compressed can
- Refrigerant are pre-cooled in the throttle tube, so that when it expands from the throttle tube into the refrigerant tube of the evaporator plate in, reaches a low temperature.
- 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.
- At least one of the tubes is provided with an electrically insulating plastic coating in a suction throttle pipe assembly with a suction pipe and a throttle tube, which are in contact with each other and made of two different metals.
- 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, in particular 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.
- the suction throttle pipe assembly according to the invention or a vaporizer using this finds use in household refrigerators, because in a simple and reliable manner the problem of contact corrosion in a large number of devices is eliminated cost-effectively.
- FIG. 1 shows a cross section of a suction throttle pipe construction according to the invention.
- Fig. 2 in an exploded view of the connection region between the suction throttle pipe assembly and an evaporator plate.
- 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 about 50 micrometers maximum is flexible, so that the throttle tube 1 can be bent as needed without the lacquer layer 2 bounces 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 raw rs 8.
- the refrigerant tube 8 is shown in a parallel to the base plate 5 section. 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 1 1 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)
- Rigid Pipes And Flexible Pipes (AREA)
- Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
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 (de) | 2008-11-11 | 2009-11-06 | Saug-drosselrohraufbau, einen diesen verwendender verdampfer und ein haushaltskältegerät mit dem saug-drosselrohraufbau bzw. mit einem diesen verwendenden verdampfer |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2347197A1 true EP2347197A1 (de) | 2011-07-27 |
EP2347197B1 EP2347197B1 (de) | 2019-01-09 |
Family
ID=41818450
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09763891.0A Active EP2347197B1 (de) | 2008-11-11 | 2009-11-06 | Saug-drosselrohraufbau, einen diesen verwendender verdampfer und ein haushaltskältegerät mit dem saug-drosselrohraufbau bzw. mit einem diesen verwendenden verdampfer |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP2347197B1 (de) |
CN (1) | CN102209870A (de) |
DE (1) | DE102008043653A1 (de) |
PL (1) | PL2347197T3 (de) |
RU (1) | RU2516631C2 (de) |
TR (1) | TR201901550T4 (de) |
WO (1) | WO2010054993A1 (de) |
Families Citing this family (7)
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 (en) * | 2014-12-12 | 2016-06-16 | Carrier Corporation | Heat transfer system with coated fluid conduit |
CN112432399B (zh) * | 2020-12-08 | 2022-07-01 | 合肥美的暖通设备有限公司 | 空调系统 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 (en) * | 1976-10-27 | 1981-08-11 | Robert B. Gelbard | High efficiency heat exchanger for refrigeration suction line/capillary tube assembly |
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 |
-
2008
- 2008-11-11 DE DE102008043653A patent/DE102008043653A1/de not_active Withdrawn
-
2009
- 2009-11-06 RU RU2011120274/06A patent/RU2516631C2/ru active
- 2009-11-06 CN CN2009801451049A patent/CN102209870A/zh active Pending
- 2009-11-06 EP EP09763891.0A patent/EP2347197B1/de active Active
- 2009-11-06 WO PCT/EP2009/064772 patent/WO2010054993A1/de active Application Filing
- 2009-11-06 PL PL09763891T patent/PL2347197T3/pl unknown
- 2009-11-06 TR TR2019/01550T patent/TR201901550T4/tr unknown
Non-Patent Citations (1)
Title |
---|
See references of WO2010054993A1 * |
Also Published As
Publication number | Publication date |
---|---|
PL2347197T3 (pl) | 2019-08-30 |
WO2010054993A1 (de) | 2010-05-20 |
RU2011120274A (ru) | 2012-12-20 |
RU2516631C2 (ru) | 2014-05-20 |
CN102209870A (zh) | 2011-10-05 |
TR201901550T4 (tr) | 2019-02-21 |
DE102008043653A1 (de) | 2010-05-20 |
EP2347197B1 (de) | 2019-01-09 |
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