US3927974A - Method for sterilizing liquids - Google Patents

Method for sterilizing liquids Download PDF

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Publication number
US3927974A
US3927974A US404622A US40462273A US3927974A US 3927974 A US3927974 A US 3927974A US 404622 A US404622 A US 404622A US 40462273 A US40462273 A US 40462273A US 3927974 A US3927974 A US 3927974A
Authority
US
United States
Prior art keywords
liquid
annular
jets
steam
sterilized
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
US404622A
Other languages
English (en)
Inventor
Bjorn-Olow Johansson
Bengt Arne Palm
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.)
Alfa Laval AB
Original Assignee
Alfa Laval AB
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 Alfa Laval AB filed Critical Alfa Laval AB
Priority to US05/530,418 priority Critical patent/US3988112A/en
Application granted granted Critical
Publication of US3927974A publication Critical patent/US3927974A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A23L3/16—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating loose unpacked materials
    • A23L3/18—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating loose unpacked materials while they are progressively transported through the apparatus
    • A23L3/22—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating loose unpacked materials while they are progressively transported through the apparatus with transport through tubes
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23C—DAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; MAKING THEREOF
    • A23C3/00—Preservation of milk or milk preparations
    • A23C3/02—Preservation of milk or milk preparations by heating
    • A23C3/03—Preservation of milk or milk preparations by heating the materials being loose unpacked
    • A23C3/033—Preservation of milk or milk preparations by heating the materials being loose unpacked and progressively transported through the apparatus
    • A23C3/037—Preservation of milk or milk preparations by heating the materials being loose unpacked and progressively transported through the apparatus in direct contact with the heating medium, e.g. steam
    • A23C3/0375—Preservation of milk or milk preparations by heating the materials being loose unpacked and progressively transported through the apparatus in direct contact with the heating medium, e.g. steam by pulverisation of the milk, including free falling film
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/04—Heat
    • A61L2/06—Hot gas
    • A61L2/07—Steam

Definitions

  • the present invention relates to a method for sterilizing liquids, such as milk, blood or the like, by bringing annular jets of steam and liquid, concentric to each other, into contact with each other.
  • the invention also comprises a jet nozzle for this purpose, the nozzle having annular, concentric channels for the supply of steam and liquid, which open around a central plug.
  • An example of such a method together with a jet nozzle is shown in the U.S. Pat. No. 2,130,644.
  • the present invention aims at preventing the formation of said coatings by flushing cold liquid past those surfaces on which the coatings can be formed.
  • this is effected by providing two annular jets of cold liquid which are concentric to said jets of steam and liquid and which are caused to sweep along the formed annular jet of steam-heated liquid at its inside as well as at its outside.
  • the jets of cold liquid consist of the same liquid as that to be sterilized.
  • a jet nozzle suitable for the new method is characterized in that the annular channels concentric to each other are four in number and that the innermost one and the outermost one of the channels are connected to a source of cold liquid.
  • the simplest way to effect this is to connect the next innermost channel to the source for the liquid to be sterilized.
  • it is suitable to arrange, within the housing of the jet nozzle, a connection between the channel for the liquid to be sterilized and at least one of the innermost and the outermost channels.
  • the jet nozzle has a housing comprising two cylindrical parts 1 and 2. These parts are kept together by screws 3.
  • a disc 4 clamped securely between these parts, has a central hole 5 into which opens an annular channel 6 for the supply of cold liquid from an inlet 7.
  • a hollow cylindrical body 8 is screwed into the part 1, and its left-hand end has a grip 9 for a screw-key, which makes it possible to adjust the body 8 in relation to the disc 4.
  • a cylindrical body 10 is in turn screwed into the body 8, and the relative position of the bodies 8 and 10 can be adjusted by means of a grip 11 for a screw-key.
  • the latter grip is a part of the body 10.
  • the body 10 In its right-hand end, the body 10 has a cavity 12 into which a plug 13 with a conical point 14 is screwed. In passing through the right-hand end of the body 10, the plug 13 forms a narrow, annular slot 15 which, like the channel 6, has
  • the body 1 has two inlets l6 and 17, of which the first one passes through an opening 18 in the body 8 and opens into the cavity 19 of the latter.
  • the inlet 17 opens into the cavity 20 of the body 1.
  • Conical, annular channels 21 and 22 lead from the cavities l9 and 20 to the meeting place 23 for the channels 6 and 15, i.e., to the zone of the plug point 14.
  • the cavities l2 and 19 communicate with one another through holes 24.
  • Cooling channels 25 are arranged in the wall of the body 2, and these cooling channels have an inlet 26 and an outlet 27. Sterilized liquid discharges through an outlet 28.
  • the holes 24 can be plugged; and cold liquid can instead be supplied to the cavity 12 through an axial channel 29 in the body 10, which channel has radially extending branches 30.
  • the apparatus operates in the following manner, it being assumed that milk is to be sterilized.
  • the milk is supplied through the inlet 16 and the steam through the inlet 17.
  • Milk and steam meet in the zone 23 around the plug point 14, the milk immediately being heated to sterilizing temperature.
  • a small part of the cold milk flows through the holes 24 to the slot 15 and sweeps from there along the plug point 14, so that precipitations on the latter are practically completely prevented.
  • cold milk coming from the inlet 7 prevents formation of precipitations on those surfaces of the jet nozzle which, calculated in the flow direction, follow after the opening 5, i.e., on the inside of the body 2. Cooling of this same inside by means of a supply of cold water through the inlet 26 assists in preventing formation of precipitations on this inside.
  • the width of the slots 21 and 22 can be adjusted by means of the key grips 9 and 11 so as to correspond to a suitable supply of milk and steam.
  • Cold water such as cold condensate from milk vapor
  • the inlet 7 instead of milk.
  • the channel 29 if the holes 24 have been plugged.
  • steam can be supplied through the inlet 16 and the milk to be sterilized can be supplied through the inlet 17.
  • the channel 6 is an annular channel which receives cold liquid from inlet 7 and which opens into the central hole 5 in the disc 4. More precisely, the outlet 6a of annular channel 6 surrounds the annular jet of steam-heated liquid issuing from the central hole 5, as shown in the drawing, so that the liquid from inlet 7 is directed along the outside of this annular jet issuing from hole 5.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Nutrition Science (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dairy Products (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
US404622A 1972-10-13 1973-10-09 Method for sterilizing liquids Expired - Lifetime US3927974A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US05/530,418 US3988112A (en) 1973-10-09 1974-12-06 Nozzle sterilizer providing outer and inner annular concentric cooling jets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE13203/72A SE367121B (zh) 1972-10-13 1972-10-13

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US05/530,418 Division US3988112A (en) 1973-10-09 1974-12-06 Nozzle sterilizer providing outer and inner annular concentric cooling jets

Publications (1)

Publication Number Publication Date
US3927974A true US3927974A (en) 1975-12-23

Family

ID=20297014

Family Applications (1)

Application Number Title Priority Date Filing Date
US404622A Expired - Lifetime US3927974A (en) 1972-10-13 1973-10-09 Method for sterilizing liquids

Country Status (7)

Country Link
US (1) US3927974A (zh)
JP (1) JPS565541B2 (zh)
DE (1) DE2351413C2 (zh)
FR (1) FR2202658B1 (zh)
GB (1) GB1403140A (zh)
NL (1) NL7313868A (zh)
SE (1) SE367121B (zh)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2252230A (en) * 1991-01-30 1992-08-05 Apv Baker Ltd Food processing apparatus
WO2000045100A1 (en) * 1999-01-26 2000-08-03 Tetra Laval Holdings & Finance Sa A method of regulating a steam injector
WO2002001970A2 (en) * 2000-06-30 2002-01-10 Fmc Corporation Steam injection heater and method
NL1016981C2 (nl) * 2000-12-22 2002-06-25 Nutricia Nv Pasteuriseren of steriliseren.
WO2005061118A1 (en) * 2003-12-23 2005-07-07 Yara International Asa Spraying device and method for fluidised bed granulation
WO2008012314A1 (en) * 2006-07-25 2008-01-31 Nestec S.A. Dispenser for preparing a nutritional composition
WO2009105004A1 (en) * 2008-02-20 2009-08-27 Tetra Laval Holdings & Finance S.A. An adjustable steam injector
US10674751B1 (en) 2019-02-21 2020-06-09 Empirical Innovations, Inc. Heating medium injectors and injection methods for heating foodstuffs

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH626788A5 (zh) * 1978-11-17 1981-12-15 Nestle Sa
FR2543410B1 (fr) * 1983-03-29 1988-06-24 Torterotot Roland Procede de reconstitution et de traitement thermique de produits alimentaires liquides, et appareillage permettant de mettre en oeuvre ce procede
IT1311158B1 (it) * 1999-11-30 2002-03-04 Rossi & Catelli Spa Metodo e dispositivo per la sterilizzazione ed omogeneizzazione diprodotti liquidi
JP4860662B2 (ja) * 2008-05-26 2012-01-25 岩井機械工業株式会社 蒸気殺菌装置
DE102009006248B4 (de) * 2009-01-27 2011-09-01 Gea Tds Gmbh Infusionssystem für ein flüssiges Lebensmittelprodukt und Verfahren zur direkten Erwärmung eines flüssigen Lebensmittelproduktes in einem Infusionssystem
EP3210505B1 (de) * 2016-02-23 2020-04-08 Eversys Holding SA Erhitzereinheit für eine vorrichtung zur erhitzung und/oder aufschäumung von milch
CN109464682B (zh) * 2018-09-29 2023-02-24 广东粤晋然生物科技有限公司 一种蒸汽喷射式发酵培养基加热灭菌器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1997032A (en) * 1930-02-15 1935-04-09 Doering Res & Dev Corp Pasteurizing machine
US2086338A (en) * 1933-05-12 1937-07-06 Herbert D Pease Preparation of comminuted organic products for packing
US2130644A (en) * 1935-11-23 1938-09-20 Sealtest System Lab Inc Apparatus for treating lactic fluids
US2682827A (en) * 1950-06-24 1954-07-06 Ursina A G Apparatus for sterilizing foodstuffs and beverasges
US2737374A (en) * 1952-12-12 1956-03-06 Foremost Dairies Inc Fluid cooled injection heater

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE336583C (de) * 1913-12-12 1921-05-06 Oskar Lobeck Dr Verfahren zum Entkeimen von Fluessigkeiten durch Zerstaeubung mittels Dampfes
DE932153C (de) * 1953-11-11 1955-08-25 Alpura Ag Verfahren zum Entkeimen von Fluessigkeiten und Vorrichtung zur Ausfuehrung des Verfahrens
CH322228A (de) * 1954-08-11 1957-06-15 Alpura Ag Einrichtung zur Wärmebehandlung von Flüssigkeiten

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1997032A (en) * 1930-02-15 1935-04-09 Doering Res & Dev Corp Pasteurizing machine
US2086338A (en) * 1933-05-12 1937-07-06 Herbert D Pease Preparation of comminuted organic products for packing
US2130644A (en) * 1935-11-23 1938-09-20 Sealtest System Lab Inc Apparatus for treating lactic fluids
US2682827A (en) * 1950-06-24 1954-07-06 Ursina A G Apparatus for sterilizing foodstuffs and beverasges
US2737374A (en) * 1952-12-12 1956-03-06 Foremost Dairies Inc Fluid cooled injection heater

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2252230B (en) * 1991-01-30 1994-03-30 Apv Baker Ltd Food processing apparatus and method
GB2252230A (en) * 1991-01-30 1992-08-05 Apv Baker Ltd Food processing apparatus
US6708709B1 (en) * 1999-01-26 2004-03-23 Tetra Laval Holdings & Finance S.A. Method of regulating a steam injector
WO2000045100A1 (en) * 1999-01-26 2000-08-03 Tetra Laval Holdings & Finance Sa A method of regulating a steam injector
WO2002001970A2 (en) * 2000-06-30 2002-01-10 Fmc Corporation Steam injection heater and method
WO2002001970A3 (en) * 2000-06-30 2002-06-06 Fmc Corp Steam injection heater and method
WO2002051266A1 (en) * 2000-12-22 2002-07-04 Nutricia N.V. Pasteurizing or sterilizing
US20040057867A1 (en) * 2000-12-22 2004-03-25 Nutricia N.V. Pasteurizing or sterilizing
US7858028B2 (en) 2000-12-22 2010-12-28 Nutricia N.V. Pasteurizing or sterilizing
NL1016981C2 (nl) * 2000-12-22 2002-06-25 Nutricia Nv Pasteuriseren of steriliseren.
US7704420B2 (en) 2003-12-23 2010-04-27 Yara International Asa Spraying device and method for fluidised bed granulation
WO2005061118A1 (en) * 2003-12-23 2005-07-07 Yara International Asa Spraying device and method for fluidised bed granulation
CN1972754B (zh) * 2003-12-23 2010-11-03 亚拉国际有限公司 喷雾装置和用于流化床粒化的方法
US20100021604A1 (en) * 2006-07-25 2010-01-28 Nestec S.A. Dispenser for preparing a nutritional composition
WO2008012314A1 (en) * 2006-07-25 2008-01-31 Nestec S.A. Dispenser for preparing a nutritional composition
US8696899B2 (en) 2006-07-25 2014-04-15 Nestec S.A. Dispenser for preparing a nutritional composition
WO2009105004A1 (en) * 2008-02-20 2009-08-27 Tetra Laval Holdings & Finance S.A. An adjustable steam injector
US20110005408A1 (en) * 2008-02-20 2011-01-13 Tetra Laval Holdings & Finance S.A. Adjustable steam injector
EA017464B1 (ru) * 2008-02-20 2012-12-28 Тетра Лаваль Холдингз Энд Файнэнс С.А. Регулируемый паровой инжектор
US10004244B2 (en) 2008-02-20 2018-06-26 Tetra Laval Holdings & Finance S.A. Adjustable steam injector
US10674751B1 (en) 2019-02-21 2020-06-09 Empirical Innovations, Inc. Heating medium injectors and injection methods for heating foodstuffs
US20200268004A1 (en) * 2019-02-21 2020-08-27 Empirical Innovations, Inc. Systems and methods for receiving the output of a direct steam injector
US11147297B2 (en) 2019-02-21 2021-10-19 Empirical Innovations, Inc. Heating medium injectors and injection methods for heating foodstuffs
US20230320387A1 (en) * 2019-02-21 2023-10-12 Empirical Innovations, Inc. Articles including undenatured meat protein and water condensed from steam
US11864572B2 (en) * 2019-02-21 2024-01-09 Empirical Innovations, Inc. Systems and methods for receiving the output of a direct steam injector
US11896040B2 (en) * 2019-02-21 2024-02-13 Empirical Innovations, Inc. Articles including undenatured meat protein and water condensed from steam

Also Published As

Publication number Publication date
JPS565541B2 (zh) 1981-02-05
DE2351413A1 (de) 1974-05-09
FR2202658A1 (zh) 1974-05-10
SE367121B (zh) 1974-05-20
DE2351413C2 (de) 1982-07-08
FR2202658B1 (zh) 1976-04-30
JPS4972993A (zh) 1974-07-15
NL7313868A (zh) 1974-04-16
GB1403140A (en) 1975-08-13

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