WO2007023441A2 - Dispositif de refroidissement - Google Patents

Dispositif de refroidissement Download PDF

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Publication number
WO2007023441A2
WO2007023441A2 PCT/IB2006/052878 IB2006052878W WO2007023441A2 WO 2007023441 A2 WO2007023441 A2 WO 2007023441A2 IB 2006052878 W IB2006052878 W IB 2006052878W WO 2007023441 A2 WO2007023441 A2 WO 2007023441A2
Authority
WO
WIPO (PCT)
Prior art keywords
controlled atmosphere
atmosphere compartment
generator
compartment
temperature
Prior art date
Application number
PCT/IB2006/052878
Other languages
English (en)
Other versions
WO2007023441A3 (fr
Inventor
Levent Akdag
Deniz Seker
Original Assignee
Arcelik Anonim Sirketi
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 Arcelik Anonim Sirketi filed Critical Arcelik Anonim Sirketi
Publication of WO2007023441A2 publication Critical patent/WO2007023441A2/fr
Publication of WO2007023441A3 publication Critical patent/WO2007023441A3/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/36—Freezing; Subsequent thawing; Cooling
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/34—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
    • A23L3/3409—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor
    • A23L3/3418—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O
    • 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042—Air treating means within refrigerated spaces

Definitions

  • the present invention relates to cooling devices that comprise a controlled atmosphere compartment and a generator that supplies the required gas mixture to this compartment.
  • cooling and freezing compartments are formed in order to provide the most suitable conditions required for the storing of different types of food.
  • the shelf lives are further prolonged by forming con trolled atmosphere compartments containing the gas mixture determined according to the type of the food such that the activity of the microorganisms which is one of the causes of food deterioration is minimized.
  • the meat products oxygen (O2) enriched
  • N2 vegetables and fruit nitrogen
  • CO2 carbon dioxide
  • the gas to be delivered to the controlled atmosphere compartment can be supplied from a variety of sources.
  • the required gas (N2) is provided from a tube wherein it is stored previously.
  • the temperature of the gas recently delivered to the controlled atmosphere compartment is different from the interior temperature of the compartment. This prolongs the time period in which the gas mixture reaches the desired temperature and humidity conditions. The time spent in achieving the desired temperature and humidity conditions results in reducing the shelf life of the food.
  • the aim of the present invention is the realization of a cooling device wherein the temperature of the gas mixture pumped into the controlled atmosphere compartment reaches the desired conditions as fast and as easy as possible.
  • the gas mixture extracted by the gas generator to be delivered into the controlled atmosphere compartment is aspirated from within the body of the cooling device.
  • the inlet of the gas generator is in fluid communication with the interior the body of the cooling device, and the outlet is in fluid communication with the interior of the controlled atmosphere compartment. Since the air within the body has already been cooled to a certain temperature, the difference between the current temperature of the controlled atmosphere compartment and the temperature of the gas mixture recently delivered from the generator is reduced as much as possible. Accordingly, the gas mixture reaches the desired temperature in a short while after being delivered to the controlled atmosphere compartment.
  • the controlled atmosphere compartment is situated just above the vegetable container and the inlet of the generator opens into the vegetable container. Consequently, the possible temperature differences within the body are eliminated and a gas mixture having a temperature as close as possible to the current temperature of the controlled atmosphere compartment is delivered inside.
  • Figure 1 - is the schematic view of a cooling device.
  • the cooling device (1) comprises:
  • [28] - a generator (5) that aspirates air and extracts the required gas mixture to be delivered into the controlled atmosphere compartment (4) from the air.
  • the generator (5) comprises:
  • the generator (5) comprises a separator (8) in the form of a semi-permeable membrane.
  • the separator (8) allows the passage of the gases with a certain molecular size, consequently provides the separation of the desired and the undesired gasses.
  • the controlled atmosphere compartment (4) is situated inside the body (2).
  • the inlet (6) of the generator (5) is attached to the inside of the body (2).
  • the outlet (7) of the generator (5) opens into the controlled atmosphere compartment (4).
  • the air with a temperature of 3-4°C aspirated from within the body (2) by a pump (not shown in the figures) reaches into the generator (5).
  • the desired gases pass to the other side of the separator (8), the undesired gases stay on the side of the inlet (6).
  • the gas mixture having the desired content is delivered from the outlet (7) into the controlled atmosphere compartment (4).
  • the temperature of the gas mixture entering into the controlled atmosphere compartment (4) does not differ significantly from the temperature of the body (2) and the controlled atmosphere compartment (4). Consequently, the time period for reaching the desired conditions in the controlled atmosphere compartment (4) is shorter, and once the conditions are maintained, it is possible to keep these conditions unaltered to a great extent even if gas mixture is continued to be delivered inside. Since the body (2) is not completely insulated from the exterior environment, the aspirated air from within does not create a vacuum.
  • the cooling device (1) comprises a vegetable container (9) situated at the bottom portion of the body (2).
  • the controlled atmosphere compartment (4) is situated just above or below the vegetable container (9). Since the air distribution within the body (2) is not homogeneous in practice, the temperature of the controlled atmosphere compartment (4) is closer to the temperature of the vegetable container (9).
  • the inlet (6) of the generator (5) opens into the vegetable container (9). Consequently, the temperature difference between the temperature of the controlled atmosphere compartment (4) and the temperature of the gas mixture to be delivered to the controlled atmosphere compartment (4) is provided to be lesser by means of aspirating the air from within the vegetable container (9).
  • a nitrogen (N2) generator is utilized in the cooling device (1) of the present invention.
  • This nitrogen generator (5) separates the air aspirated from the body (2) into two parts by means of the separator (8).
  • the first part is comprised of 85-96 % nitrogen, 3-5 % oxygen and 3-10 % carbon dioxide by volume and is delivered to the controlled atmosphere compartment (4) via the outlet (7).
  • the remaining part being rich in oxygen, is discharged from the second outlet (7) to the exterior environment.
  • the controlled atmosphere compartment (4) is positioned just above the vegetable container (9).
  • the inlet (6) of the nitrogen generator (5), situated outside of the body (2), is attached to the vegetable container (9).
  • the nitrogen- enriched gas outlet (7) of the nitrogen generator (5) extends into the controlled atmosphere compartment (4) and the oxygen-enriched gas outlet (70) extends into the exterior environment.
  • the air with a temperature of 3-4°C aspirated from the vegetable container (9) by a pump (not shown in the drawings) reaches into the generator (5).
  • the oxygen and carbon gases having very large molecules cannot pass through the separator (8) that has a certain pore size; however, the smaller nitrogen molecules can pass.
  • the oxygen-rich mixture stays on the side of the inlet (6).
  • the nitrogen-rich mixture is delivered into the controlled atmosphere compartment (4) from the outlet (7). Since the temperature within the generator (5) does not rise much, the temperature of the nitrogen-rich mixture entering the controlled atmosphere compartment (4) is quite close to the temperature of the vegetable container (9) and the controlled atmosphere compartment (4). Accordingly, the temperature conditions of the controlled atmosphere compartment (4) can be preserved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Food Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Nutrition Science (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Storage Of Fruits Or Vegetables (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

La présente invention concerne des dispositifs de refroidissement (1) comprenant un compartiment (4) d'atmosphère régulée, et un générateur (5) qui alimente ledit compartiment (4) en mélange gazeux nécessaire.
PCT/IB2006/052878 2005-08-22 2006-08-21 Dispositif de refroidissement WO2007023441A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2005/03339 2005-08-22
TR200503339 2005-08-22

Publications (2)

Publication Number Publication Date
WO2007023441A2 true WO2007023441A2 (fr) 2007-03-01
WO2007023441A3 WO2007023441A3 (fr) 2007-06-07

Family

ID=37682765

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2006/052878 WO2007023441A2 (fr) 2005-08-22 2006-08-21 Dispositif de refroidissement

Country Status (1)

Country Link
WO (1) WO2007023441A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2124001A2 (fr) * 2008-03-12 2009-11-25 Whirlpool Corporation Système modulaire de conservation d'aliments
DE102013019396A1 (de) * 2013-05-13 2014-11-13 Liebherr-Hausgeräte Ochsenhausen GmbH Kühl- und/oder Gefriergerät
EP2101129A3 (fr) * 2008-03-12 2015-08-19 Whirlpool Corporation Atmosphère modifiée pour conservation d'aliments

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH055585A (ja) * 1991-06-28 1993-01-14 Sharp Corp 新鮮貯蔵庫
JP2003287360A (ja) * 2002-03-27 2003-10-10 Toshiba Corp 貯蔵庫

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2602427B2 (ja) * 1987-02-23 1997-04-23 鈴木総業株式会社 冷蔵装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH055585A (ja) * 1991-06-28 1993-01-14 Sharp Corp 新鮮貯蔵庫
JP2003287360A (ja) * 2002-03-27 2003-10-10 Toshiba Corp 貯蔵庫

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch, Week 199840 Derwent Publications Ltd., London, GB; Class D14, AN 1988-282757 XP002418353 -& JP 63 207973 A (CUBIC ENG KK) 29 August 1988 (1988-08-29) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2124001A2 (fr) * 2008-03-12 2009-11-25 Whirlpool Corporation Système modulaire de conservation d'aliments
EP2124001A3 (fr) * 2008-03-12 2012-11-07 Whirlpool Corporation Système modulaire de conservation d'aliments
EP2124002A3 (fr) * 2008-03-12 2015-07-15 Whirlpool Corporation Dispositif et procédé pour la production d'une atmosphère modifiée pour la conservation d'aliments
EP2101129A3 (fr) * 2008-03-12 2015-08-19 Whirlpool Corporation Atmosphère modifiée pour conservation d'aliments
DE102013019396A1 (de) * 2013-05-13 2014-11-13 Liebherr-Hausgeräte Ochsenhausen GmbH Kühl- und/oder Gefriergerät

Also Published As

Publication number Publication date
WO2007023441A3 (fr) 2007-06-07

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