EP0629824A1 - Evaporateur pour un appareil frigorifique à compresseur - Google Patents

Evaporateur pour un appareil frigorifique à compresseur Download PDF

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Publication number
EP0629824A1
EP0629824A1 EP94113040A EP94113040A EP0629824A1 EP 0629824 A1 EP0629824 A1 EP 0629824A1 EP 94113040 A EP94113040 A EP 94113040A EP 94113040 A EP94113040 A EP 94113040A EP 0629824 A1 EP0629824 A1 EP 0629824A1
Authority
EP
European Patent Office
Prior art keywords
tube
evaporator
capillary tube
suction
capillary
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
Application number
EP94113040A
Other languages
German (de)
English (en)
Other versions
EP0629824B1 (fr
Inventor
Dieter Bitter
Eberhard Bornkessel
Helmut Gehrke
Herbert Stember
Horst Schnabel
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.)
Krupp VDM GmbH
Original Assignee
Krupp VDM 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 Krupp VDM GmbH filed Critical Krupp VDM GmbH
Publication of EP0629824A1 publication Critical patent/EP0629824A1/fr
Application granted granted Critical
Publication of EP0629824B1 publication Critical patent/EP0629824B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F25B39/02—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
    • 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
    • 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
    • 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
    • F25B2400/054—Compression system with heat exchange between particular parts of the system between the suction tube of the compressor and another part of the 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
    • F25B2500/00—Problems to be solved
    • F25B2500/01—Geometry problems, e.g. for reducing size
    • 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
    • F25B40/00—Subcoolers, desuperheaters or superheaters

Definitions

  • the invention relates to an evaporator for a compressor cooling device, which is made from a two-layer evaporator board, between which meandering refrigerant channels and an inlet and an outlet area for supplying and removing the refrigerant are formed, with an intake pipe connected to the outlet area, which can be connected to a suction side of the compressor, and with a capillary tube for supplying liquid refrigerant into the inlet area, which passes through the suction tube outside the evaporator and can be connected to a condenser.
  • Evaporators designed in this way are known, for example, from DE-B-1 242 646 and are used in many domestic refrigerators.
  • the invention is now concerned with the coolant circuit, in particular with the coolant inlet into the evaporator, which takes place in the known cooling devices via a long throttle capillary tube corresponding to the required throttling effect, which according to the prior art is the coolant supply line.
  • This throttle capillary tube is routed regularly into the inlet area of the coolant channel through a corresponding inlet thrust and, in the case of the so-called single-tube connection, also lies in the outlet area of the coolant channel with a section of its length.
  • the coolant channel itself runs in a meandering manner in one of two aluminum sheets welded together, for example according to the so-called roll bonding process Manufactured, originally flat, then formed into the refrigerator compartment evaporator board and closes on the outlet side with an aluminum pipe socket, the so-called suction pipe, which is inserted pressure-tight into the channel end.
  • the throttle capillary tube is so long in most of the refrigerator types manufactured today that it can only be accommodated to a small extent in the inlet area of the coolant channel of the evaporator and for the most part, often with a partial length of several meters, is outside the evaporator. This part length is regularly wound up in a ring bundle to form a capillary curl.
  • a first production simplification could already be achieved by using throttle capillary tubes for evaporators of different types, all of which have an outer diameter of, for example, 1.9 mm, with inner diameters of, for example, 0.55 to 1.05 mm, which allow a type-dependent adaptation.
  • at least connections of the throttle capillary tube or openings for this can be designed uniformly.
  • the dragging of the capillary curl in the final stages of production continues to be a hindrance, just as the capillary curl unfavorably determines the packing density of the evaporators during transport to the cooling device manufacturers.
  • the object of the invention is to simplify the variety in the manufacture of the evaporators caused by the numerous types of cooling device and to take into account the consequences of using new coolants of lower viscosity.
  • the generic evaporator is now characterized by the arrangement of a guide tube, the outer end of which opens into the inlet area, the inlet and outlet areas being separated from one another by the outer tube wall of the guide tube and a narrow point between the two evaporator boards, and the capillary tube being partially inside the guide tube runs and is sealed against this from the outside.
  • the invention enables extensive standardization of the evaporator production and basically permits the separate production of the evaporator tubes, which are still free of throttle capillary tubes and the associated capillary tubes, up to a final assembly in which the capillary tube is installed in the guide tube, i.e. inserted into this or inserted through it as far as possible and finally soldered to it.
  • the length, type and installation of the guide tubes in the evaporator boards can be reduced to a small number of construction variants, thus simplifying the production process.
  • the guide tube is attached to the outside of the intake manifold or to an intermediate tube adjoining the intake manifold.
  • the outer end of the guide tube, the suction tube or an intermediate tube adjoining the suction tube ends in a sealing manner and in the outlet region.
  • the invention makes it possible to adapt easily to different design requirements of the cooling device manufacturers.
  • An arrow 5 indicates that Inflow direction
  • another arrow 6 indicates the outflow direction.
  • FIG. 1 shows a flat evaporator, the coolant channel 2 of which is partially indicated by a broken line.
  • a suction pipe 10 serves for the coolant outlet.
  • a soldered intermediate pipe 11 made of copper connects to the suction pipe 10 made of aluminum.
  • the suction tube 10 and in the intermediate tube 11 there is a further capillary tube 12, which in an approximately S-shaped curvature 14 of the intermediate tube 11 leads out through the wall of the intermediate tube and is inserted into the end of the guide tube 8 on the evaporator side.
  • the guide tube 8 is held on the intermediate tube 11 via an element 13.
  • the throttle capillary 7 is inserted at a distance from the further capillary tube 12.
  • the throttle capillary tube 7 and the further throttle capillary 12 are connected to the guide tube 8 by soldering. Suitable measures must be taken when soldering so that the capillaries are not accidentally closed by solder.
  • the intake manifold connections are first made, but still without the throttle capillary tube 7, and then attached to the evaporator board 1.
  • the installation of the throttle capillary tube 7 takes place only when the evaporator is otherwise finished.
  • the structural unit shown without a throttle capillary tube 7 represents a standard intake manifold connection which can be used for many types of evaporator and in which the further capillary tube 12 has, for example, an inner diameter of 1.1 mm.
  • This standard intake manifold connection is now supplemented with a wide variety of throttle capillary tubes 7, which correspond only to the outer capillary tube 12, namely with throttle capillary tubes 7, more or less small inner diameters and different lengths.
  • FIG. 2 shows that the coolant supply line here is composed of the large length section L1, the second length section L2, a short area in the guide tube 8 and the third length section of the further capillary tube 12.
EP94113040A 1991-06-22 1992-06-17 Evaporateur pour un appareil frigorifique à compresseur Expired - Lifetime EP0629824B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4120651A DE4120651A1 (de) 1991-06-22 1991-06-22 Verdampfer fuer ein kompressor-kuehlgeraet
DE4120651 1991-06-22
EP92110195A EP0520309B1 (fr) 1991-06-22 1992-06-17 Evaporateur pour un appareil frigorifique à compresseur

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP92110195.2 Division 1992-06-17

Publications (2)

Publication Number Publication Date
EP0629824A1 true EP0629824A1 (fr) 1994-12-21
EP0629824B1 EP0629824B1 (fr) 1997-07-30

Family

ID=6434526

Family Applications (2)

Application Number Title Priority Date Filing Date
EP92110195A Expired - Lifetime EP0520309B1 (fr) 1991-06-22 1992-06-17 Evaporateur pour un appareil frigorifique à compresseur
EP94113040A Expired - Lifetime EP0629824B1 (fr) 1991-06-22 1992-06-17 Evaporateur pour un appareil frigorifique à compresseur

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP92110195A Expired - Lifetime EP0520309B1 (fr) 1991-06-22 1992-06-17 Evaporateur pour un appareil frigorifique à compresseur

Country Status (11)

Country Link
US (1) US5269158A (fr)
EP (2) EP0520309B1 (fr)
JP (1) JPH05180535A (fr)
BR (1) BR9202354A (fr)
CA (1) CA2071761A1 (fr)
DE (4) DE9116265U1 (fr)
DK (2) DK0520309T3 (fr)
ES (2) ES2105444T3 (fr)
FI (1) FI922881A (fr)
NO (1) NO176456C (fr)
TR (1) TR26063A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29716572U1 (de) * 1997-09-15 1997-12-04 Liebherr Hausgeraete Kühlgerät mit einem Normalkühlraum und einem Tiefkühlfach

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6110168A (en) * 1993-02-10 2000-08-29 Radiant Medical, Inc. Method and apparatus for controlling a patient's body temperature by in situ blood temperature modifications
JP3540075B2 (ja) † 1995-12-11 2004-07-07 松下電器産業株式会社 空気調和機
IT1288846B1 (it) * 1996-02-07 1998-09-25 Cga Comp Gen Allumino Spa Assemblato per scambio calore e rispettivo processo ed impianto di produzione
SE506059C2 (sv) * 1996-02-28 1997-11-03 Electrolux Ab Anordning vid en förångare
US5765393A (en) * 1997-05-28 1998-06-16 White Consolidated Industries, Inc. Capillary tube incorporated into last pass of condenser
US6338727B1 (en) 1998-08-13 2002-01-15 Alsius Corporation Indwelling heat exchange catheter and method of using same
DE19840412A1 (de) * 1998-09-04 2000-03-09 Bsh Bosch Siemens Hausgeraete Verdampferplatine
DE19900701A1 (de) * 1999-01-11 2000-07-13 Vdm Evidal Gmbh Kapillar-Saugrohrsystem für Verdampfersysteme bzw. Kältekreislaufsysteme
DE19907183A1 (de) * 1999-02-19 2000-08-24 Bsh Bosch Siemens Hausgeraete Verdampferplatine
DE10055915A1 (de) * 2000-11-10 2002-05-23 Bsh Bosch Siemens Hausgeraete Kältemittelkreislauf für eine Kältemaschine
DE10360899A1 (de) * 2003-12-23 2005-07-21 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit ultraschallverschweißtem Saug- und Drosselrohr
DE202004007836U1 (de) * 2004-05-14 2004-07-15 Dometic S.A.R.L. Kühlsystem
GB2418478A (en) * 2004-09-24 2006-03-29 Ti Group Automotive Sys Ltd A heat exchanger
DE102011006260A1 (de) * 2011-03-28 2012-10-04 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät
DE102013021350A1 (de) * 2013-12-04 2015-06-11 Liebherr-Hausgeräte Lienz Gmbh Kühl- und/oder Gefriergerät
CN109869973B (zh) * 2017-12-05 2022-03-29 松下电器产业株式会社 冷冻冷藏库

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2760346A (en) * 1953-10-01 1956-08-28 Gen Motors Corp Refrigerating apparatus of dissimilar metals
US2776550A (en) * 1952-10-21 1957-01-08 Gen Electric Capillary adaptor
DE1242646B (de) * 1961-02-08 1967-06-22 Schmoele Metall R & G Kaelteeinrichtung fuer Kuehlschraenke

Family Cites Families (10)

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Publication number Priority date Publication date Assignee Title
US2956421A (en) * 1957-04-04 1960-10-18 Borg Warner Capillary refrigerating systems
US2979924A (en) * 1958-03-17 1961-04-18 Gen Electric Refrigerating system composed of dissimilar metals
US2959027A (en) * 1958-11-28 1960-11-08 James O Ewing Combination evaporator-condenser assembly with concentric tubular construction
US3172272A (en) * 1962-06-19 1965-03-09 Westinghouse Electric Corp Air conditioning apparatus
US3531947A (en) * 1968-10-29 1970-10-06 Gen Electric Refrigeration system including refrigerant noise suppression
DE2231538A1 (de) * 1971-07-03 1973-01-11 Zanussi A Spa Industrie Verbesserung an kuehlmoebelverdampfern und herstellungsverfahren dazu
US4086782A (en) * 1975-04-16 1978-05-02 Aktiebolaget Electrolux Noise reduction arrangement for a compressor type refrigerator
US4449853A (en) * 1983-04-11 1984-05-22 Mennella Robert J Flexible sleeve elbow for gas service lines
JPS6016277A (ja) * 1984-06-13 1985-01-28 松下冷機株式会社 板状冷却器
US4715187A (en) * 1986-09-29 1987-12-29 Vacuum Barrier Corporation Controlled cryogenic liquid delivery

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2776550A (en) * 1952-10-21 1957-01-08 Gen Electric Capillary adaptor
US2760346A (en) * 1953-10-01 1956-08-28 Gen Motors Corp Refrigerating apparatus of dissimilar metals
DE1242646B (de) * 1961-02-08 1967-06-22 Schmoele Metall R & G Kaelteeinrichtung fuer Kuehlschraenke

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29716572U1 (de) * 1997-09-15 1997-12-04 Liebherr Hausgeraete Kühlgerät mit einem Normalkühlraum und einem Tiefkühlfach

Also Published As

Publication number Publication date
EP0629824B1 (fr) 1997-07-30
NO176456C (no) 1995-04-05
ES2084875T3 (es) 1996-05-16
NO176456B (no) 1994-12-27
ES2105444T3 (es) 1997-10-16
TR26063A (tr) 1994-12-15
EP0520309B1 (fr) 1996-01-10
EP0520309A1 (fr) 1992-12-30
NO922427D0 (no) 1992-06-19
DE59208763D1 (de) 1997-09-04
DE59204980D1 (de) 1996-02-22
NO922427L (no) 1992-12-23
US5269158A (en) 1993-12-14
DK0520309T3 (da) 1996-06-10
DK0629824T3 (da) 1998-02-23
FI922881A0 (fi) 1992-06-18
BR9202354A (pt) 1993-01-26
CA2071761A1 (fr) 1992-12-23
FI922881A (fi) 1992-12-23
DE4120651A1 (de) 1993-01-14
JPH05180535A (ja) 1993-07-23
DE9116265U1 (fr) 1992-09-03

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