EP0242587A1 - Vorrichtung zum Gefrieren von auf einem Hordenwagen befindlichen Lebensmitteln - Google Patents

Vorrichtung zum Gefrieren von auf einem Hordenwagen befindlichen Lebensmitteln Download PDF

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Publication number
EP0242587A1
EP0242587A1 EP87103924A EP87103924A EP0242587A1 EP 0242587 A1 EP0242587 A1 EP 0242587A1 EP 87103924 A EP87103924 A EP 87103924A EP 87103924 A EP87103924 A EP 87103924A EP 0242587 A1 EP0242587 A1 EP 0242587A1
Authority
EP
European Patent Office
Prior art keywords
refrigerant
trolley
spray system
food
fans
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Withdrawn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
EP87103924A
Other languages
German (de)
English (en)
French (fr)
Inventor
Jürgen Buchmüller
Wolfgang Hoffmanns
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.)
Messer Griesheim GmbH
Original Assignee
Messer Griesheim 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 Messer Griesheim GmbH filed Critical Messer Griesheim GmbH
Publication of EP0242587A1 publication Critical patent/EP0242587A1/de
Withdrawn legal-status Critical Current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
    • F25D3/10—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
    • F25D3/11—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air with conveyors carrying articles to be cooled through the cooling space
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
    • F25D2317/0684—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans the fans allowing rotation in reverse direction
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/30—Quick freezing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S165/00—Heat exchange
    • Y10S165/918—Heated and cooled food cabinets and/or trays
    • Y10S165/919—Wheeled

Definitions

  • the invention relates to a device for foods located on a trolley according to the preamble of claim 1.
  • Foodstuffs on a trolley are frozen by pushing them into an insulated housing and applying a cryogenic refrigerant through direct heat exchange.
  • Liquid nitrogen or liquid carbon dioxide are usually used as refrigerants.
  • the refrigerant is sprayed into the insulated housing by a spray system and evaporates through contact with the food to be cooled or frozen.
  • the now cold gaseous refrigerant is circulated by one or more fans and through flows through the trays of the trolley several times. Finally, it is removed from the insulated housing through a vent.
  • the invention is therefore based on the object of providing a device for freezing food located on a trolley, which allows a uniform cold gas application to the food located on the individual floors of the trolley.
  • the mutual loading of the frozen goods which enables the device according to the invention, not only has the advantage that the food is cooled and frozen more uniformly and therefore more gently, but it also reduces the freezing time and reduces the refrigerant requirement.
  • the device shown in the drawing consists of an insulated housing 1, which also has an insulated door, not shown, through which it can be loaded with a trolley 2.
  • the food to be frozen is located on the individual floors 3 of the trolley.
  • a spray system 4, 5 is installed on each long side of the trolley 2.
  • the spray systems 4, 5 are connected by lines 6, 7 and solenoid valves 8, 9 via a line 10 to a storage, not shown, for liquid nitrogen.
  • two fans 11 are arranged, which serve to circulate the sprayed and vaporized liquid nitrogen.
  • the fans 11 are fastened to a frame 12, from which a cover 13 extends over the fans 11 and the trolley 2.
  • the cover 13 causes a forced gas flow through the floors 3 of the trolley 2.
  • the direction of rotation and thus the direction of delivery of the fans 11 can be switched.
  • the resulting gas flow is shown by arrows not shown.
  • the heated refrigerant flows out of the insulated housing 1 through the discharge opening 14.
  • a control cabinet 15 is located on a wall of the insulated housing 1.
  • the freezing time and the spray cycle for the spray systems 4, 5 are set on the control cabinet 15. These values depend on the type of freeze Food off. Likewise, the freezing temperature is set on the control cabinet 15.
  • the spray cycle is, for example, 5 minutes.
  • the solenoid valve 8 opens and liquid nitrogen flows through the line 6 and the spray system 4 into the interior of the insulated housing 1.
  • the fans 11 are switched at the same time depending on the opening state of the solenoid valves 8, 9, that they suck the nitrogen emerging and evaporating from the spray system 4 through the floors 3 of the trolley 2 and circulate many times. A quantity of gaseous nitrogen corresponding to the amount of nitrogen sprayed in continuously escapes through the discharge opening 14. After 5 minutes.
  • the number and arrangement of the fans 11 is chosen so that a largely uniform gas flow through the floors 3 of the trolley 2 is formed. For trolleys of normal size, two on top of each other are sufficient arranged fans 11.
  • the device according to the invention is primarily used for freezing food, but it is immediately apparent that it can be used in the same way if the food is only to be cooled.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (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)
EP87103924A 1986-03-27 1987-03-18 Vorrichtung zum Gefrieren von auf einem Hordenwagen befindlichen Lebensmitteln Withdrawn EP0242587A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3610563 1986-03-27
DE19863610563 DE3610563A1 (de) 1986-03-27 1986-03-27 Vorrichtung zum gefrieren von auf einem hordewagen befindlichen lebensmitteln

Publications (1)

Publication Number Publication Date
EP0242587A1 true EP0242587A1 (de) 1987-10-28

Family

ID=6297489

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87103924A Withdrawn EP0242587A1 (de) 1986-03-27 1987-03-18 Vorrichtung zum Gefrieren von auf einem Hordenwagen befindlichen Lebensmitteln

Country Status (4)

Country Link
US (1) US4739625A (OSRAM)
EP (1) EP0242587A1 (OSRAM)
DE (2) DE3610563A1 (OSRAM)
ZA (1) ZA872233B (OSRAM)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2259357A (en) * 1991-09-04 1993-03-10 Distillers Mg Limited Food handling and cooling system
WO1999047023A1 (en) * 1998-03-17 1999-09-23 Monetti S.P.A. Method and system for aircraft catering
IT202200008459A1 (it) * 2022-04-28 2023-10-28 Ilca Carni srl Metodo di surgelazione criogenica

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9306285D0 (en) * 1993-03-26 1993-05-19 Air Prod & Chem Rotary tunnel freezer
US5606860A (en) * 1994-03-07 1997-03-04 Popp; James L. Process and apparatus for cryogenically cleaning residue from containers and reducing the bulk volume thereof
US5887750A (en) * 1994-03-07 1999-03-30 James L. Popp Commodity container
US5456085A (en) * 1994-03-07 1995-10-10 Popp; James L. Process and apparatus for cryogenically cleaning residue from containers and reducing the bulk volume thereof
US5689961A (en) * 1996-01-30 1997-11-25 Organogenesis Inc. Ice seeding apparatus for cryopreservation systems
GB0619319D0 (en) * 2006-09-30 2006-11-08 Pickup Gary Food processing apparatus and method
US8425424B2 (en) * 2008-11-19 2013-04-23 Inightee Ltd. Closed-loop clot lysis
CN102334747A (zh) * 2011-08-18 2012-02-01 杨贵修 一种水雾蒸发冷却蒸煮食品的方法及装置
JP5870152B2 (ja) * 2014-04-24 2016-02-24 大陽日酸株式会社 過冷却凍結装置及び方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH221413A (de) * 1941-04-26 1942-05-31 Sulzer Ag Tiefkühlanlage.
CA925714A (en) * 1971-01-15 1973-05-08 W. Ahara Peter Method and apparatus for freezing material
FR2271521A1 (en) * 1974-05-15 1975-12-12 Anhydride Carbonique Ind Small batches of food frozen with dry ice - sprayed on as ten or more successive layers
DE2523929A1 (de) * 1975-05-30 1976-12-16 Kueleg Kuehlmoebelfabrik Und A Tiefkuehlgeraet
FR2498429A1 (fr) * 1981-01-27 1982-07-30 Carboxyque Francaise Enceinte de refrigeration perfectionnee
US4344291A (en) * 1980-04-28 1982-08-17 Liquid Carbonic Corporation Cryogenic cabinet freezer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1005250A (en) * 1974-03-22 1977-02-15 Kuleg Kuhlmobelfabrik And Apparatebau G.M.B.H. Refrigeration apparatus
DE2557870A1 (de) * 1975-12-22 1977-06-23 Linde Ag Verfahren und vorrichtung zum tiefgefrieren von biologischen substanzen
US4380908A (en) * 1982-02-10 1983-04-26 Growers Ice Company Method and apparatus for chilling produce
US4407136A (en) * 1982-03-29 1983-10-04 Halliburton Company Downhole tool cooling system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH221413A (de) * 1941-04-26 1942-05-31 Sulzer Ag Tiefkühlanlage.
CA925714A (en) * 1971-01-15 1973-05-08 W. Ahara Peter Method and apparatus for freezing material
FR2271521A1 (en) * 1974-05-15 1975-12-12 Anhydride Carbonique Ind Small batches of food frozen with dry ice - sprayed on as ten or more successive layers
DE2523929A1 (de) * 1975-05-30 1976-12-16 Kueleg Kuehlmoebelfabrik Und A Tiefkuehlgeraet
US4344291A (en) * 1980-04-28 1982-08-17 Liquid Carbonic Corporation Cryogenic cabinet freezer
FR2498429A1 (fr) * 1981-01-27 1982-07-30 Carboxyque Francaise Enceinte de refrigeration perfectionnee

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2259357A (en) * 1991-09-04 1993-03-10 Distillers Mg Limited Food handling and cooling system
WO1999047023A1 (en) * 1998-03-17 1999-09-23 Monetti S.P.A. Method and system for aircraft catering
IT202200008459A1 (it) * 2022-04-28 2023-10-28 Ilca Carni srl Metodo di surgelazione criogenica

Also Published As

Publication number Publication date
DE8608538U1 (de) 1988-02-18
DE3610563C2 (OSRAM) 1988-04-21
ZA872233B (en) 1987-09-21
US4739625A (en) 1988-04-26
DE3610563A1 (de) 1987-10-01

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Inventor name: HOFFMANNS, WOLFGANG

Inventor name: BUCHMUELLER, JUERGEN