EP0609962A2 - Système de réfrigération - Google Patents

Système de réfrigération Download PDF

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Publication number
EP0609962A2
EP0609962A2 EP94200623A EP94200623A EP0609962A2 EP 0609962 A2 EP0609962 A2 EP 0609962A2 EP 94200623 A EP94200623 A EP 94200623A EP 94200623 A EP94200623 A EP 94200623A EP 0609962 A2 EP0609962 A2 EP 0609962A2
Authority
EP
European Patent Office
Prior art keywords
dry ice
cooling system
slices
containers
trollies
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.)
Withdrawn
Application number
EP94200623A
Other languages
German (de)
English (en)
Other versions
EP0609962A3 (fr
Inventor
Erik L. Andersen
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.)
Yara Technology BV
Norsk Hydro Elektrisk Kvaelstof AS
Original Assignee
Norsk Hydro Technology BV
Norsk Hydro Elektrisk Kvaelstof AS
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 Norsk Hydro Technology BV, Norsk Hydro Elektrisk Kvaelstof AS filed Critical Norsk Hydro Technology BV
Publication of EP0609962A2 publication Critical patent/EP0609962A2/fr
Publication of EP0609962A3 publication Critical patent/EP0609962A3/fr
Withdrawn legal-status Critical Current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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
    • F25D3/12—Devices using other cold materials; Devices using cold-storage bodies using solidified gases, e.g. carbon-dioxide snow
    • F25D3/125—Movable containers
    • 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
    • F25D2303/00—Details of devices using other cold materials; Details of devices using cold-storage bodies
    • F25D2303/08—Devices using cold storage material, i.e. ice or other freezable liquid
    • F25D2303/082—Devices using cold storage material, i.e. ice or other freezable liquid disposed in a cold storage element not forming part of a container for products to be cooled, e.g. ice pack or gel accumulator
    • F25D2303/0822—Details of the element
    • F25D2303/08221—Fasteners or fixing means for the element
    • 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
    • F25D2331/00—Details or arrangements of other cooling or freezing apparatus not provided for in other groups of this subclass
    • F25D2331/80—Type of cooled receptacles
    • F25D2331/809—Holders

Definitions

  • This invention relates to a cooling system for cooling and freezing food and drinks kept in trollies or containers by using dry ice slices.
  • the main object of this invention is to achieve a cooling system for cooling and freezing food and drinks in trollies and containers where the temperature is approximately the same all over in the container or trolley.
  • Another object of the invention is to achieve a cooling system as described in the above paragraph, that is cheap and easy to handle.
  • Fig. 1a shows the cooling system when dry ice slices are kept in flow-packs and suspended to the trolley or container.
  • Fig. 1b shows the cooling system when dry ice disks are kept in flow-packs and suspended to the inside of the door of the trolley or container.
  • Fig. 1c shows a flow-pack where the holding arrangement is a handel, and a closed trolley or container equipped with a cooling system comprising dry ice slices packed in a flow-pack having a handel at the upper end.
  • Fig. 2 shows a segment of the cooling system when dry ice slices are vacuum-packed in plastic which are pre-moulded, and thus resting steadily on the shelves or trays in the trolley or container when placed in the compartment openings.
  • the cooling system according to the present invention which is based on a kind of separate cooling of each compartment in the container or trolley.
  • the cooling medium used is dry ice slices.
  • the trollies or containers 5 might be divided into compartments 6, either by permanent shelves or by trays pushed on rails in the trollies or containers.
  • the trollies or containers might be open or closed.
  • the food and drinks might be placed directly on the shelves, or trays with food and drinks like prepared meals might be placed on the shelves or pushed into the trollies or containers on the rails.
  • the disclosed cooling system 1 comprises dry ice slices 2, which is placed in front of the opening of the compartments 6.
  • the size of the dry ice slices might vary to suite the different kinds of trollies or containers, and to adjust varying cooling periods.
  • the length and hight of the slices are chosen on the basis of length and hight of the compartment openings in the trolley or container.
  • the length and hight of the slices are smaller or equal to those of the compartment openings.
  • the thickness of the slices are decided on the basis of wanted cooling period.
  • the thickness of the slices are increased in relation to increasing cooling periods. Regarding airline catering the duration of the flight is decisive for the thickness chosen for the dry ice slices.
  • Dry ice slices 2 were packed in flow-packs 3 as shown in fig. 1a, 1b and 1c.
  • the flow-packs were made of paper and might be of varying lengths; i.e. the flow-packs might be able to keep varying amounts of dry ice slices, preferably from 1 till 10.
  • the distance between the dry ice slices in the flow -packs were chosen on the basis of the kind of trolley or container that the flow-packs were designed for, i.e. the number and hight of compartments in the trolley or container were decisive factors.
  • At the upper end of the flow-packs there was a holding arrangement 4.
  • the holding arrangement preferably were double-sided tape, or for trollies or containers having doors possibly a handle which are kept outside the door when closed.
  • One or more flow-packs packed with dry ice slices were fastened to the trollies or containers by the holding arrangement either at the front of the trollies or containers themselves or at the doors thereof. If more flow-packs containing dry ice slices were used they were fastened beneath each other in a way that all compartments containing food and drinks were completely or partly closed by one slice each.
  • the dry ice slices 2 were vacuum-packed in plastic.
  • the plastic material might be of different stiffness.
  • the plastic was pre-moulded in a way that when surrounding the dry ice slices, it was resting steadily on the shelves or trays in the trolley or container when placed in the compartment openings. This is shown in fig. 2. Thus, no holding or fastening means were needed to keep the dry ice slices in the right position. Further the surrounding plastic material made the dry ice slices more easy to handle.
  • a cooling system where an even temperature is obtained during the whole trolley or container, by using dry ice slices, is disclosed. Further, this cooling system has made it possible to satisfy the temperature requirements set by organizations like AEA.
  • AEA evaporation-to-evaporation-to-evaporation-to-evaporation-to-evaporation-to-evaporation-to-evaporation-to-evaporation-to-evaporation-to-evaporation-cos, is evenly spread during the whole trolley or container.
  • the present system comprises dry ice slices placed in front of every compartment containing food and drinks.
  • the invented cooling system includes a cheap and simple way of handling food and drinks satisfactory when conventional refrigerating systems can not be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Freezing, Cooling And Drying Of Foods (AREA)
EP94200623A 1994-03-09 1994-03-10 Système de réfrigération. Withdrawn EP0609962A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO940841 1994-03-09
NO940841A NO178208C (no) 1994-03-09 1994-03-09 Fremgangsmåte for kjöling av mat og drikke ved bruk av törris samt kjölesystem

Publications (2)

Publication Number Publication Date
EP0609962A2 true EP0609962A2 (fr) 1994-08-10
EP0609962A3 EP0609962A3 (fr) 1995-01-18

Family

ID=19896915

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94200623A Withdrawn EP0609962A3 (fr) 1994-03-09 1994-03-10 Système de réfrigération.

Country Status (3)

Country Link
EP (1) EP0609962A3 (fr)
DE (1) DE609962T1 (fr)
NO (1) NO178208C (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2761144A1 (fr) 1997-03-24 1998-09-25 Hydrogas France Sa Dispositif de transport de produits frais et procede de production et de transfert de glace carbonique ou neige comprimee dans le dispositif
WO1998048674A1 (fr) * 1997-04-27 1998-11-05 Scotway Limited Dispositif de refrigeration
EP0964214A1 (fr) * 1998-06-11 1999-12-15 Colpo Company Limited Système de réfrigération compact pour conteneurs et procédé de conservation du froid
WO2000021830A1 (fr) * 1998-10-12 2000-04-20 Tineke Charlotte Kouwenberg Tiroir refroidi pour chariot de distribution de repas dans les aeronefs
US6269651B1 (en) 1999-10-28 2001-08-07 Scotsway Limited Cooling apparatus
NL1015205C2 (nl) * 2000-05-16 2001-11-19 Hoek Loos Bv Koelorgaan voor een voedseltrolley.
EP1387135A3 (fr) * 1998-06-11 2006-11-22 Cool Pack System Corp. Système de réfrigération compact et rapide et procédé de conservation de froid
CN104116321A (zh) * 2013-04-29 2014-10-29 波音公司 应用于厨房推车以便降低温度梯度的垂直安装的干冰冷却隔间

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1838163A (en) * 1928-02-01 1931-12-29 Dri Kold Mfg Company Combined receiver and holder
US2188372A (en) * 1937-11-05 1940-01-30 Frank B Parker Refrigeration
US3992069A (en) * 1975-06-23 1976-11-16 Gary Kitterman Food tray carrier
US3950789A (en) * 1975-07-22 1976-04-20 Kansas State University Research Foundation Dry ice cooling jacket
FR2604243B3 (fr) * 1986-09-19 1988-12-23 Anhydride Carbonique Ind Procede de fabrication d'une masse accumulatrice de froid a partir d'anhydride carbonique et accumulateur obtenu.
US4741167A (en) * 1986-11-20 1988-05-03 Wigley Freddie J Method and apparatus for transporting perishable materials
ZW7192A1 (en) * 1991-06-28 1992-08-08 African Oxygen Ltd A method and means for providing refrigeration
JPH05193923A (ja) * 1992-01-22 1993-08-03 Hideo Morota 固体二酸化炭素の材料

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2761144A1 (fr) 1997-03-24 1998-09-25 Hydrogas France Sa Dispositif de transport de produits frais et procede de production et de transfert de glace carbonique ou neige comprimee dans le dispositif
WO1998048674A1 (fr) * 1997-04-27 1998-11-05 Scotway Limited Dispositif de refrigeration
US6282916B1 (en) 1997-04-27 2001-09-04 Scotsway Limited Cooling apparatus
EP0964214A1 (fr) * 1998-06-11 1999-12-15 Colpo Company Limited Système de réfrigération compact pour conteneurs et procédé de conservation du froid
EP1387135A3 (fr) * 1998-06-11 2006-11-22 Cool Pack System Corp. Système de réfrigération compact et rapide et procédé de conservation de froid
WO2000021830A1 (fr) * 1998-10-12 2000-04-20 Tineke Charlotte Kouwenberg Tiroir refroidi pour chariot de distribution de repas dans les aeronefs
US6269651B1 (en) 1999-10-28 2001-08-07 Scotsway Limited Cooling apparatus
NL1015205C2 (nl) * 2000-05-16 2001-11-19 Hoek Loos Bv Koelorgaan voor een voedseltrolley.
EP1156289A1 (fr) * 2000-05-16 2001-11-21 Hoek Loos B.V. Unité de refroidissement pour chariot de distribution de repas
CN104116321A (zh) * 2013-04-29 2014-10-29 波音公司 应用于厨房推车以便降低温度梯度的垂直安装的干冰冷却隔间
US9446847B2 (en) 2013-04-29 2016-09-20 The Boeing Company Vertically mounted dry ice cooling compartment applied to a galley cart for temperature gradient reduction
CN104116321B (zh) * 2013-04-29 2018-12-11 波音公司 应用于厨房推车以便降低温度梯度的垂直安装的干冰冷却隔间

Also Published As

Publication number Publication date
EP0609962A3 (fr) 1995-01-18
NO940841L (no) 1995-09-11
NO178208C (no) 1996-02-07
NO178208B (no) 1995-10-30
NO940841D0 (no) 1994-03-09
DE609962T1 (de) 1994-12-22

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