EP1116002B1 - Systeme de refroidissement a circuit unique - Google Patents

Systeme de refroidissement a circuit unique Download PDF

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Publication number
EP1116002B1
EP1116002B1 EP99969485A EP99969485A EP1116002B1 EP 1116002 B1 EP1116002 B1 EP 1116002B1 EP 99969485 A EP99969485 A EP 99969485A EP 99969485 A EP99969485 A EP 99969485A EP 1116002 B1 EP1116002 B1 EP 1116002B1
Authority
EP
European Patent Office
Prior art keywords
evaporator
refrigerant
downstream
circuit
cooling
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.)
Expired - Lifetime
Application number
EP99969485A
Other languages
German (de)
English (en)
Other versions
EP1116002A1 (fr
Inventor
Wolfgang Nuiding
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
Priority to SI9930083T priority Critical patent/SI1116002T1/xx
Publication of EP1116002A1 publication Critical patent/EP1116002A1/fr
Application granted granted Critical
Publication of EP1116002B1 publication Critical patent/EP1116002B1/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
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • F25B5/04—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in series
    • 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
    • F25B2400/04—Refrigeration circuit bypassing means
    • F25B2400/0415—Refrigeration circuit bypassing means for the receiver
    • 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
    • F25B2400/16—Receivers
    • 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
    • F25B45/00—Arrangements for charging or discharging refrigerant
    • 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
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • F25D11/022—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators

Definitions

  • the invention relates to a single-circuit cooling system with an option based on Deflection means in its refrigerant circuit switchable reservoir for receiving Refrigerant and at least two evaporators, one of which is in the Series connection of downstream evaporators with regard to its temperature the refrigerant removal is controlled using the reservoir.
  • a fresh cooling compartment and one Normal refrigerator compartment is on the pressure side of its compressor by a solenoid valve switchable collectors provided in the refrigerant circuit (see EP-A-0 703 421). This is used in Dependence of the position of a temperature controller arranged in the refrigerator compartment To withdraw different amounts of liquid refrigerant from the refrigeration circuit.
  • liquid refrigerant is required, one of which is functionally very tight Tolerance limits prescribed refrigerant quantity when filling the Refrigeration cycle requires a very narrow so-called filling width, whereby the Filling process of the refrigeration circuit with regard to the filling quantity not only one precise monitoring, but also requires a very fine dosage. The consequence of this is that the filling process is time-consuming and costly.
  • the invention has for its object a single-circuit cooling system according to the Preamble of claim 1 with simple constructive measures, especially with regard to the minimum and the maximum Refrigerant filling quantity certain filling width, to improve.
  • the filling width of the filling evaporator system can be increased if after a preferred embodiment of the object of the invention is provided, that the collection means from a combination of at least one Refrigerant collector and one in terms of its capacity a single channel enlarged channel section are formed.
  • the refrigerant collector and enlarged channel sections are arranged in series, wherein the refrigerant collector the enlarged channel section in the flow direction of the circulated refrigerant is downstream. Furthermore, the Storage of the refrigerant collector that the liquid refrigerant in upstream evaporator at least largely retained and one Transport of the liquid refrigerant by so-called "entraining" in the downstream evaporator is prevented.
  • the refrigerant collector in the direction of flow forced refrigerant another, into one Refrigerant connection channel to the downstream evaporator, downstream channel section enlarged in terms of its volume is.
  • Such a measure not only creates another buffer space, but also also particularly ensures that when operating the Refrigerant compressor the liquid refrigerant entrained significantly less is and thus an unwanted cooling of a certain period of time from the Cooling circuit hidden evaporator is ensured.
  • the enlarged channel section of the Refrigerant connection channel at least in the initial area of the downstream evaporator extends.
  • the evaporator Circuit board sections according to the roll bond or the Z bond process manufactured evaporator board are formed.
  • a cooling device with evaporators is particularly useful if after a further preferred embodiment of the subject of the invention it is provided that the evaporators have a different cooling capacity, the downstream evaporator has a lower cooling capacity than Cooling compartment evaporator and the other is designed as a fresh cooling evaporator.
  • the evaporator board three serving as evaporators Includes board sections, of which the leading in series as Freezer evaporator, the immediately following as a fresh cooling evaporator and the downstream of this is designed as a refrigerator compartment evaporator.
  • fresh cooling compartment evaporator can not only the filling width of the evaporator system with liquid refrigerant at least on the increase double the value compared to conventional evaporator systems, but also make sure that the refrigerator compartment evaporator in the event that Reservoir for the absorption of liquid refrigerant within the refrigeration cycle is switched, not charged with liquid refrigerant and thus is not cooled as intended. At the same time, however, the amount of refrigerant suitable for maintaining the full cooling capacity on the freezer compartment evaporator.
  • the only figure shows one integrated in a single-circuit cooling system Evaporator board with three evaporators, one of which is connected in series Evaporator arranged between the two evaporators Fresh cooler evaporator with collection agent for buffering refrigerant Is provided.
  • a is a simplified schematic representation Single-circuit refrigeration system 10 shown, which has a compressor 11 and a condenser 12, at the output of which is used to hold liquid refrigerant serving reservoir 13 is provided, which via one of a not shown Control electronics controlled three / two-way solenoid valve 14 in the Refrigeration circuit is switchable.
  • the solenoid valve 14 is on its output side Downstream dryer 15, which in turn is designed as a capillary tube Throttle 16 is downstream.
  • the capillary tube 16 is in one piece Evaporator board 17 belonging to the board section 18, which in its Installation position is designed as a U-shaped angled freezer evaporator, in whose capillary tube 16 is stamped by a cover formed by one of its legs is and serves as an injection point 19.
  • the as Single channel has the refrigerant channel 20 supplied to the circuit board section 22 within the board section 22 a with regard to the cross section of the Single channel with a significantly enlarged channel cross-section 23 on which a connected via a single channel section Refrigerant collector 24 is connected downstream, which together with the enlarged channel section 23 as a buffer for liquid refrigerant within the Board section 22 is used.
  • a single channel section Refrigerant collector 24 is connected downstream, which together with the enlarged channel section 23 as a buffer for liquid refrigerant within the Board section 22 is used.
  • the refrigerant collector 24 is on the output side also in cross section enlarged channel section 25 of Refrigerant channel 20 downstream, which at least to a certain extent its length is arranged within the connecting web 21 and which on its inflow side facing the refrigerant collector 24 as a double channel 26 trained channel part, which exclusively on the Connecting web 21 is provided.
  • the double channel 26 is similar in one enlarged duct section 23 formed duct part 27 of duct section 25 merged, the channel part 27 over part of its length within of the connecting web 21 is arranged, while its predominant Longitudinal section within a the board section 22 refrigeration downstream, serving as a refrigerator compartment evaporator section 28 is provided is.
  • the refrigerant channel 20 is in turn continued as a single channel and via the Connecting web 21 returned to the board section 18, where it in the Ceiling section opens at a suction point 29.
  • the invention is also on individual evaporator boards applicable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Earth Drilling (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Claims (8)

  1. Système de refroidissement à circuit unique (10), présentant un réservoir (13) de réception de fluide de refroidissement qui peut être raccordé sélectivement à son circuit de refroidissement par des moyens de déviation (14), et au moins deux évaporateurs (22, 28), la température de l'évaporateur (28) situé en aval dans le circuit en série étant commandée par l'extraction du fluide de refroidissement à l'aide du réservoir, caractérisé en ce que l'évaporateur (22) situé en amont dans le circuit en série présente un agencement de canal (20) à fluide de refroidissement qui est équipé au moins très largement de moyens de collecte (23, 24) servant à tamponner le fluide de refroidissement liquide.
  2. Système de refroidissement à circuit unique selon la revendication 1, caractérisé en ce que les moyens de collecte (23, 24) sont formés par une combinaison d'au moins un collecteur (24) de fluide de refroidissement et d'une partie de canal (23) dont la capacité est agrandie par rapport à celle d'un canal simple.
  3. Système de refroidissement à circuit unique selon la revendication 2, caractérisé en ce que le collecteur (24) de fluide de refroidissement et la partie de canal (23) agrandie sont disposés l'un derrière l'autre dans un circuit en série, le collecteur (24) de fluide de refroidissement étant situé en aval de la partie de canal (23) agrandie dans le sens d'écoulement du fluide de refroidissement en circulation forcée.
  4. Système de refroidissement à circuit unique selon l'une des revendications 2 et 3, caractérisé en ce qu'une partie de canal (25) dont la capacité est agrandie et qui est installée dans un canal de liaison de fluide de refroidissement conduisant à l'évaporateur (28) situé en aval, est placée en aval du collecteur (24) de fluide de refroidissement dans le sens d'écoulement du fluide de refroidissement en circulation forcée.
  5. Machine de refroidissement à circuit unique selon la revendication 4, caractérisée en ce que la partie de canal agrandie (25) du canal de liaison de fluide de refroidissement s'étend au moins dans la zone initiale de l'évaporateur (28) situé en aval.
  6. Machine de refroidissement à circuit unique selon l'une des revendications 1 à 5, caractérisée en ce que les évaporateurs présentent différentes puissances frigorifiques, l'évaporateur (28) situé en aval étant configuré avec une puissance de refroidissement plus faible, comme évaporateur de compartiment de froid, et l'autre évaporateur (22) équipé des moyens de collecte (23, 24) est configuré comme évaporateur de compartiment à produits frais.
  7. Machine de refroidissement à circuit unique selon l'une des revendications 1 à 6, caractérisée en ce que les évaporateurs sont formés par des parties de plaque (22, 28) d'une plaque d'évaporateur (17) fabriquée par le procédé de liaison par laminage ou le procédé de liaison en Z.
  8. Machine de refroidissement à circuit unique selon la revendication 7, caractérisée en ce que la plaque d'évaporateur (17) comprend trois parties de plaque (18, 22, 28) servant d'évaporateur, sur lesquelles sont formés l'évaporateur situé en amont dans le circuit en série et servant d'évaporateur (18) de compartiment de réfrigération, l'évaporateur immédiatement suivant, doté des moyens de collecte (23, 24) et servant d'évaporateur (22) de compartiment à produits frais, et l'évaporateur situé en aval de ce dernier et servant d'évaporateur (28) de compartiment froid.
EP99969485A 1998-09-22 1999-09-10 Systeme de refroidissement a circuit unique Expired - Lifetime EP1116002B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9930083T SI1116002T1 (en) 1998-09-22 1999-09-10 Single-circuit cooling system

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19843484A DE19843484A1 (de) 1998-09-22 1998-09-22 Einkreiskältesystem
DE19843484 1998-09-22
PCT/EP1999/006709 WO2000017588A1 (fr) 1998-09-22 1999-09-10 Systeme de refroidissement a circuit unique

Publications (2)

Publication Number Publication Date
EP1116002A1 EP1116002A1 (fr) 2001-07-18
EP1116002B1 true EP1116002B1 (fr) 2002-05-08

Family

ID=7881869

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99969485A Expired - Lifetime EP1116002B1 (fr) 1998-09-22 1999-09-10 Systeme de refroidissement a circuit unique

Country Status (8)

Country Link
EP (1) EP1116002B1 (fr)
AT (1) ATE217409T1 (fr)
DE (2) DE19843484A1 (fr)
DK (1) DK1116002T3 (fr)
ES (1) ES2177349T3 (fr)
PL (1) PL192582B1 (fr)
TR (1) TR200100664T2 (fr)
WO (1) WO2000017588A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR9905700A (pt) * 1999-12-03 2001-09-25 Brasil Compressores Sa Aperfeiçoamento em circuito de refrigeração
DE10053420A1 (de) * 2000-10-27 2002-05-08 Bsh Bosch Siemens Hausgeraete Verdampfer und Kältegerät für ein zeotropes Kältemittelgemisch
DE10055916A1 (de) * 2000-11-10 2002-05-23 Bsh Bosch Siemens Hausgeraete Kaltemittelkreislauf für eine Kältemaschine
DE10145139A1 (de) * 2001-09-13 2003-04-03 Bsh Bosch Siemens Hausgeraete Kältegerät mit zwei Verdampfern
DE10162500A1 (de) 2001-12-19 2003-07-03 Bsh Bosch Siemens Hausgeraete Kältemaschine mit einem druckseitigen Kältemittelsammler
DE102012218700A1 (de) 2012-10-15 2014-04-17 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät
DE102019112093A1 (de) * 2018-07-12 2020-01-16 Liebherr-Hausgeräte Ochsenhausen GmbH Kühl- und/oder Gefriergerät

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2544938A (en) * 1948-03-24 1951-03-13 Nash Kelvinator Corp Refrigerant evaporator
DE2506750C2 (de) * 1975-02-18 1985-01-31 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Kühlmöbel, insbesondere Zweitemperaturen-Kühlschrank
DE2539914C2 (de) * 1975-09-09 1985-04-04 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Kühlmöbel, insbesondere Zweitemperaturen-Kühlschrank
DE4433712A1 (de) * 1994-09-21 1996-03-28 Bosch Siemens Hausgeraete Kühlmöbel mit wenigstens zwei Fächern unterschiedlicher Temperatur

Also Published As

Publication number Publication date
ES2177349T3 (es) 2002-12-01
DE19843484A1 (de) 2000-03-23
ATE217409T1 (de) 2002-05-15
PL346712A1 (en) 2002-02-25
WO2000017588A1 (fr) 2000-03-30
EP1116002A1 (fr) 2001-07-18
DE59901418D1 (de) 2002-06-13
PL192582B1 (pl) 2006-11-30
DK1116002T3 (da) 2002-08-26
TR200100664T2 (tr) 2001-07-23

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