DE972611C - Cooling and fresh-keeping processes for perishable goods, especially food - Google Patents

Cooling and fresh-keeping processes for perishable goods, especially food

Info

Publication number
DE972611C
DE972611C DES43307A DES0043307A DE972611C DE 972611 C DE972611 C DE 972611C DE S43307 A DES43307 A DE S43307A DE S0043307 A DES0043307 A DE S0043307A DE 972611 C DE972611 C DE 972611C
Authority
DE
Germany
Prior art keywords
cooling
fresh
perishable goods
especially food
keeping
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
Application number
DES43307A
Other languages
German (de)
Inventor
Rolf Dr Esche
Werner Huelsmann
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to DES43307A priority Critical patent/DE972611C/en
Application granted granted Critical
Publication of DE972611C publication Critical patent/DE972611C/en
Expired legal-status Critical Current

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
    • A23L3/26—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by irradiation without heating
    • A23L3/30—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by irradiation without heating by treatment with ultrasonic waves
    • 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
    • A23L3/36—Freezing; Subsequent thawing; Cooling
    • A23L3/361—Freezing; Subsequent thawing; Cooling the materials being transported through or in the apparatus, with or without shaping, e.g. in form of powder, granules, or flakes
    • 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
    • A23L3/37—Freezing; Subsequent thawing; Cooling with addition of or treatment with chemicals
    • A23L3/375—Freezing; Subsequent thawing; Cooling with addition of or treatment with chemicals with direct contact between the food and the chemical, e.g. liquid nitrogen, at cryogenic temperature
    • 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
    • A23L5/00—Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
    • A23L5/30—Physical treatment, e.g. electrical or magnetic means, wave energy or irradiation
    • A23L5/32—Physical treatment, e.g. electrical or magnetic means, wave energy or irradiation using phonon wave energy, e.g. sound or ultrasonic waves

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Description

Kühl- und Frischhalteverfahren für verderbliche Güter, insbesondere Lebensmittel Die Erfindung betrifft ein Kühl- und Frischhalteverfahren für verderbliche Güter,insbesondere Lebensmittel, unter Verwendung zerstäubter Flüssigkeit.Cooling and freshness-keeping processes for perishable goods, in particular Foodstuffs The invention relates to a refrigeration and freshness-keeping method for perishable foods Goods, in particular food, using atomized liquid.

Es sind bereits verschiedene Verfahren zum Frischhalten von verderblichem Gut bekannt, bei denen durch Aufrechterhalten einer niedrigen Temperatur, d. h. also durch Kühlung, das Gut vor dem Verderben geschützt wird. Beispielsweise werden dabei die Lebensmittel mit verdampfenden Kühlmitteln, wie C02-Schnee, in Berührung gebracht. Abgesehen von der Kostspieligkeit dieses Verfahrens muß dieses in einem gut abgeschlossenen Raum, z. B. in einem Gefriertunnel, durchgeführt werden, in dem ein geringer Überdruck herrschen muß, damit keine Außenluft durch die Ein- und Ausbringschächte eindringen kann. Ferner sind geschlossene Kühlkabinen bekannt, in denen Kühlflüssigkeit an den Wänden und/oder an Ablenkblechen entlangrieselt. Die Flüssigkeit spritzt dabei aus mit Löchern versehenen Rohren, die von einer Umlaufpumpe gespeist werden.There are already various methods of keeping perishable items fresh It is well known that by maintaining a low temperature, i. H. so by cooling, the goods are protected from spoilage. For example be the food comes into contact with evaporating coolants such as C02 snow brought. Apart from the costly nature of this procedure, this must be done in one well closed room, e.g. B. in a freezer tunnel, in a slight overpressure must prevail so that no outside air through the inlet and Discharge shafts can penetrate. Closed cooling cabins are also known, in which coolant trickles along the walls and / or baffles. The liquid squirts out of holes provided with pipes by a circulation pump be fed.

Im Gegensatz zu den bekannten Verfahren besteht die der Erfindung zugrundeliegende Aufgabe darin, mit einfachen Mitteln das Gut auf Kühltemperatur zu bringen, ohne daß hierzu ein raumartiger Abschluß erforderlich ist.In contrast to the known methods, there is that of the invention underlying task in it, with simple means, the good Bring cooling temperature without the need for a space-like closure is.

Erfindungsgemäß wird dies dadurch erreicht, daß das Gut einem mit einem Ultraschallschwinger mit Konvergenzpunkt erzeugten Flüssigkeitsnebel ausgesetzt wird, bei dem das Maximum der Tröpfchenvolumenverteilung bei einem Tröpfchendurchmesser von nahezu 2 1, liegt, und der ohne Flüssigkeitsrückstände verdunstet.According to the invention this is achieved in that the good with one exposed to liquid mist generated by an ultrasonic transducer with a convergence point at which the maximum of the droplet volume distribution at a droplet diameter of almost 2 1, and which evaporates without leaving any liquid residue.

Ein homogener Nebel mit einem Nebelspektrum, dessen Volumenmaximum bei nahezu 2 @i liegt, läßt sich mit den herkömmlichen Düsenverneblern nicht erzeugen, so daß derartige bekannte Düsenvernebler zur Lösung der der Erfindung zugrundeliegenden Aufgabe ungeeignet sind.A homogeneous fog with a fog spectrum, its volume maximum is almost 2 @i, cannot be produced with conventional nozzle nebulizers, so that such known nozzle nebulizers to solve the underlying of the invention Are unsuitable for the task.

Unabhängig von der räumlichen Ausbildung und Gestalt des zu behandelnden Gutes kann somit eine relativ gleichmäßige und ausreichende Kühlung des Gutes erreicht werden. Das Verfahren nach der Erfindung eignet sich besonders zum Lagern des Gutes in Schaufenstern u. dgl., wobei durch einen Ventilator u. ä. der Feuchtigkeitsgehalt der umgebenden Luft laufend geregelt werden kann.Regardless of the spatial formation and shape of the treated Good can thus achieve a relatively uniform and sufficient cooling of the good will. The method according to the invention is particularly suitable for storing the goods in shop windows and the like, with the moisture content being controlled by a fan and the like the surrounding air can be continuously regulated.

Claims (1)

PATENTANSPRUCH: Kühl- und Frischhalteverfahren für verderbliche Güter, insbesondere Lebensmittel, unter Verwendung zerstäubter Flüssigkeit, dadurch gekennzeichnet, däß das Gut einem mit einem Ultraschallschwinger mit Konvergenzpunkt erzeugten Flüssigkeitsnebel ausgesetzt wird, bei dem das Maximum der Tröpfchenvolumenverteilung bei einem Tröpfchendurchmesser von nahezu 2 #t liegt, und der ohne Flüssigkeitsrückstände verdunstet. In Betracht gezogene Druckschriften: Französische Patentschrift Nr. 984. 945 ; Zeitschrift V. D. I., 76, 1932, S. 583 und 587.PATENT CLAIM: Cooling and freshness-keeping process for perishable goods, in particular food, using atomized liquid, characterized in that, that the material is a liquid mist generated with an ultrasonic transducer with a convergence point is exposed, at which the maximum of the droplet volume distribution at a droplet diameter of almost 2 #t, and which evaporates without leaving any liquid residue. Into consideration Drawn pamphlets: French Patent No. 984,945; Journal V. D. I., 76, 1932, pp. 583 and 587.
DES43307A 1955-04-01 1955-04-01 Cooling and fresh-keeping processes for perishable goods, especially food Expired DE972611C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES43307A DE972611C (en) 1955-04-01 1955-04-01 Cooling and fresh-keeping processes for perishable goods, especially food

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES43307A DE972611C (en) 1955-04-01 1955-04-01 Cooling and fresh-keeping processes for perishable goods, especially food

Publications (1)

Publication Number Publication Date
DE972611C true DE972611C (en) 1959-08-20

Family

ID=7484674

Family Applications (1)

Application Number Title Priority Date Filing Date
DES43307A Expired DE972611C (en) 1955-04-01 1955-04-01 Cooling and fresh-keeping processes for perishable goods, especially food

Country Status (1)

Country Link
DE (1) DE972611C (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR984945A (en) * 1943-10-15 1951-07-12 Process and installation for the pre-refrigeration of fresh meat and resulting products

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR984945A (en) * 1943-10-15 1951-07-12 Process and installation for the pre-refrigeration of fresh meat and resulting products

Similar Documents

Publication Publication Date Title
DE1601927A1 (en) Method and device for the rapid freezing of material which can be submerged in liquids
DE972611C (en) Cooling and fresh-keeping processes for perishable goods, especially food
DE19518344A1 (en) Quick freezing assembly
US1894813A (en) Means and method for chilling and freezing foodstuffs
EP0659351B1 (en) Apparatus for the preparation of ice cream, frozen dessert and fruit masses, cake masses, dough masses, from several difficultly miscible fluid matrices, that consist of at least one component
DE845048C (en) Method and device for deep freezing goods
US2336125A (en) Method of precooling cargoes of vegetable products
DE3785193T2 (en) Frozen solution and freezing process.
DE824350C (en) Process for cooling food and luxury foods
DE2147880A1 (en) Method and device for cooling liquid or essentially liquid material, in particular flussi gene or essentially liquid food and luxury items
DE847293C (en) Method and device for the preservation of solid carbon dioxide
DE2260293C3 (en) Process for the production of frozen minced meat
DE2650821A1 (en) Preserving perishable food by cooling - in vaporised or vaporising nitrogen with air addn. to increase oxygen and/or water vapour concn.
DE818957C (en) Process for cooling food and luxury foods
DE2900112C2 (en) Method and device for the treatment of food products
DE4422289A1 (en) Foodstuff cooling
DE538561C (en) Process for reducing the moisture content of the air in cooling rooms that are cooled with water ice
DE10355506B4 (en) Refrigerator with drying compartment
DE563011C (en) Method of preserving liquid colloidal medicines and foods
DE897512C (en) Process for generating cold, especially in connection with the preservation of food
DE2928680C2 (en) Process for flavoring or influencing aroma, if necessary, pre-flavored or spiced foods
DE3326750A1 (en) Process for improving the storability and keeping quality of foods stored in refrigerators or freezers or cold stores
DE945475C (en) Process for comminuting or grinding grainy foodstuffs or luxury foods, especially roasted coffee beans
DE705721C (en) Process for refrigerating food
DE652473C (en) Device for deep freezing food in vehicles, in particular in railroad cars