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WO2012167857A1 - Procédé de traitement de récipients et tête de traitement correspondante - Google Patents

Procédé de traitement de récipients et tête de traitement correspondante Download PDF

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Publication number
WO2012167857A1
WO2012167857A1 PCT/EP2012/001809 EP2012001809W WO2012167857A1 WO 2012167857 A1 WO2012167857 A1 WO 2012167857A1 EP 2012001809 W EP2012001809 W EP 2012001809W WO 2012167857 A1 WO2012167857 A1 WO 2012167857A1
Authority
WO
WIPO (PCT)
Prior art keywords
treatment
heat exchanger
treatment medium
medium
heater
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.)
Ceased
Application number
PCT/EP2012/001809
Other languages
German (de)
English (en)
Inventor
Sebastian KEICHEL
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.)
KHS GmbH
Original Assignee
KHS 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 KHS GmbH filed Critical KHS GmbH
Publication of WO2012167857A1 publication Critical patent/WO2012167857A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
    • A61L2/20—Gaseous substances, e.g. vapours
    • A61L2/208—Hydrogen peroxide
    • 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
    • A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
    • A61L2202/20—Targets to be treated
    • A61L2202/23—Containers, e.g. vials, bottles, syringes, mail

Definitions

  • the invention relates to a method according to the preamble of claim 1 and to a treatment head according to the preamble of claim 8.
  • a gaseous and / or vaporous carrier component preferably air or sterile air
  • the (carrier component) hydrogen peroxide preferably highly concentrated hydrogen peroxide (eg 20% to 35% hydrogen peroxide) dosed in finely divided or darkened form
  • the resulting mixture or sterilization medium is then introduced into the respective container in the heated and vaporized state.
  • the treatment and / or sterilization medium is conducted along at least one heat exchanger surface of a heat exchanger acting as a heater.
  • the vaporized hydrogen peroxide forms a hydrogen peroxide condensate film, which is then activated by the heated gaseous and / or vaporous carrier medium to release germicidal oxygen radicals.
  • the sterilization medium In order to achieve the highest possible quality of sterilization or the highest possible rate of disinfection, it is necessary to introduce the sterilization medium with the highest possible temperature in the respective container.
  • plastic containers e.g. made of PET, but care must be taken that the thermal load of the respective container during treatment or sterilization remains below a limit, the exceeding of which would result in damage or destruction of the container.
  • the object of the invention is to provide a method for treating containers, in particular of containers made of plastic, in which (method) with an optimal process result, for example in an optimal sterilization, a thermal overload of the respective container is avoided in the treatment.
  • a method according to claim 1 is formed.
  • a treatment head is the subject of claim 8.
  • the invention is based, inter alia, on the finding that it is at least expedient for the desired treatment result to introduce the treatment medium into the container at a first elevated temperature during the treatment in a first partial phase, so that the container temperature rises relatively rapidly to an increased intermediate temperature during this partial phase and that then subsequently the treatment medium is introduced into the container at a temperature which is reduced in relation to the first temperature, so that during this second partial phase a rise in the container temperature, which is slower than the first partial phase, takes place at the maximum treatment temperature.
  • containers are packages or containers which are customarily used in the foodstuffs sector and especially in the beverage sector, such as bottles, cans, soft packagings, for example those made of cardboard and / or plastic film and / or metal foil.
  • substantially or “approximately” in the sense of the invention means deviations from respectively exact values by +/- 10%, preferably by +/- 5% and / or deviations in the form of changes insignificant for the function.
  • Fig. 1 is a simplified schematic representation of a treatment head of a treatment station for treating or sterilizing containers in the form of bottles with a hot treatment or sterilizing medium, e.g. with a hot hydrogen peroxide-containing sterilization medium;
  • FIG. 3 shows in a time-temperature diagram the temperature of the respective container during the treatment or sterilization
  • Fig. 5 is a simplified block or functional representation of a treatment head according to another embodiment of the invention.
  • the treatment head serves to treat, in particular, the interior of containers 2, one of which is shown in FIG. 1 with broken lines in the form of a bottle, with a hot treatment medium.
  • a hot sterilizing medium which consists of sterile air and a proportion of vaporized hydrogen peroxide (aqueous H 2 O 2 solution of high concentration)
  • the container 2 is dried, for example by hot air.
  • the highest possible temperature for the treatment or sterilization medium is desired, since only at a correspondingly high temperature, the sterilization or sterilization of the container 2 is achieved with the desired quality or sterilization rate.
  • containers 2 made of sensitive materials such as those made of plastic (eg PET) to avoid a thermal overload of the container 2, which would damage or destruction of the container 2 result.
  • the treatment head 1 in a housing 4 an electrically heated and acting as a heater heat exchanger 5 whose temperature
  • the heat exchanger 5 is designed as a cylindrical heated block, with a formed on the outer surface, the axis of the heat exchanger 5 and the treatment head helically or spirally enclosing groove which forms a vertical axis BA of the treatment head 1 helically or helically enclosing flow channel 7 together with the inner surface of the housing 4, from the upper region of the treatment head 1 to one with the Beh Andungsrohr 3 associated outlet opening 8 of the treatment head 1 is sufficient.
  • a first metering device 9 is connected, which serves for the controlled and metered penetration of hydrogen peroxide in an air stream, preferably in a stream of sterile air.
  • the metering device 9 has a metering chamber 10, which communicates on the one hand with an air connection 11 for sterile and pressurized air and on the other hand with the upper end of the flow channel 7.
  • a spray nozzle 12 is arranged, which is connected via a line 13, which includes a metering valve 14, with a source of the pressurized hydrogen peroxide in combination.
  • a second metering device 9a is connected to the flow channel 7, which is carried out in the same way as the metering device 9, although the introduced via the metering device 9a in the flow channel 7 sterilization medium (LuftTWasserstoffperoxid aerosol ) or the sterile air introduced via the metering device 9a is already heated in the heat exchanger 5 to the temperature T2 which is reduced compared to the temperature T1, because of the shorter second heat exchanger or heater section which forms the flow channel 7 between the metering device 9a and the outlet 8.
  • a control valve 15 is provided in the illustrated embodiment, with which the air flow to the metering device 9 can be controlled and blocked in the illustrated embodiment.
  • the treatment head 1 can be operated in two stages, in such a way that the sterilization medium prepared in the metering device 9 is heated to the temperature T1 on the first heater section formed by the entire length of the flow channel 7 in a first operating state with the control valve 15 blocked and emerges at this temperature according to the arrow A of Figure 1 at the outlet 8 and is introduced via the treatment tube 3 into the container 2.
  • a second operating state further heating of the sterilization medium and of the air takes place on the first heater section formed by the entire length of the flow channel 7.
  • heating of the sterilization medium provided with the metering device 9a or the air provided with the metering device 9a also takes place the second heater section, for example at approximately the length of the flow channel 7 so that this proportion of the sterilization medium is heated to the lower temperature T2 and by mixing the differently heated portions of the sterilization medium or the air at the outlet 8 a total temperature T3 for the sterilization medium or for the air which is (total temperature T3) smaller than the temperature T1 but greater than the temperature T2.
  • FIG. 3 shows the time profile of the container temperature TB during the treatment process.
  • a relatively rapid heating of the respective container 2 from the container outlet temperature TB (0) corresponding to the ambient temperature to the container temperature TB (2) takes place in the partial phase I of the treatment process.
  • a temporally following and compared to the partial phase I longer phase II then takes place by the treatment head located in the second operating state 1 heating of the container 2 to the container temperature TB (1), which corresponds for example to the temperature limit, in which just no damage or Destruction of the respective container 2 occurs.
  • the temporal temperature increase (temperature gradient) in the partial phase II is substantially lower than in the partial phase I, so that a gentle approach to the container temperature TB (1) is possible.
  • the respective container 2 is cooled down to the initial temperature TB (0).
  • both the temperatures T1 and T3 are at least equal, but preferably greater than the temperature TB (1), and that during the partial phase I in the first operating state or during the partial phase II in the second operating state of the treatment head 1 in the Container 2 with the temperature T1 and T3 introduced amount of treatment medium or the heat capacity of this amount is sufficient to heat the container 2 in the partial phase I to the temperature TB (2) and in the partial phase II to the temperature TB (1) ,
  • the volume flow of the treatment medium at the outlet 8 or at the inlet of the flow channel 7 formed by the metering devices 9 and 9a is kept constant in the partial phases I and II, for example.
  • the respective container 2 is removed from the treatment head and / or treatment head 1 is in a third operating state in which closed with metering valves 14, the control valve 15 and a control valve is closed, which in the air connection 11 of the metering device. 9 leading line is provided.
  • FIG. 5 shows the block or functional diagram of a further embodiment of the treatment head 1a according to the invention for treating the containers 2 with a hot treatment medium, eg with hot sterile air and / or with a sterilizing medium containing hot hydrogen peroxide.
  • the treatment head 1a consists essentially of a two-stage heat exchanger 5a with the preferably electrically heated heat exchanger stages 17 and 18 and of a switching valve 19 to which the air or the sterilization medium is supplied from a source, not shown.
  • the treatment medium flows through both heat exchanger stages 17 and 18 in succession, ie a first heat exchanger or heater line, so that the treatment medium then eg the elevated temperature T1 at the outlet of the treatment head 1a has ,
  • the treatment medium flows through only the heat exchanger stage 18, ie a second shorter heat exchanger or Erhitzerrange so that it has the reduced temperature T3 at the outlet of the treatment head 1a.
  • both the heat exchanger stages 17 and 18 or the serial series thereof are heated in the first treatment station 1a and the first heating line formed by the latter in the second operating section of the flow channel 7 (second heating section) and the proportion of the treatment medium provided to the metering device 9a Operating state, only the heat exchanger stage 18 and the second heater section formed by this effect.

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

L'invention concerne un procédé de traitement de récipients, en particulier de récipients en matière plastique, consistant à introduire dans chaque récipient un fluide de traitement chauffé, sous forme de gaz et/ou de vapeur, par le biais d'au moins une sortie d'une tête de traitement. Avant d'être introduit dans le récipient, le fluide de traitement est chauffé dans un échangeur thermique de la tête de traitement, servant de dispositif chauffant, sur une surface dudit échangeur thermique.
PCT/EP2012/001809 2011-06-07 2012-04-27 Procédé de traitement de récipients et tête de traitement correspondante Ceased WO2012167857A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011104873.5 2011-06-07
DE201110104873 DE102011104873B4 (de) 2011-06-07 2011-06-07 Verfahren sowie Behandlungskopf zum Behandeln von Behältern

Publications (1)

Publication Number Publication Date
WO2012167857A1 true WO2012167857A1 (fr) 2012-12-13

Family

ID=46025604

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/001809 Ceased WO2012167857A1 (fr) 2011-06-07 2012-04-27 Procédé de traitement de récipients et tête de traitement correspondante

Country Status (2)

Country Link
DE (1) DE102011104873B4 (fr)
WO (1) WO2012167857A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017186733A1 (fr) * 2016-04-27 2017-11-02 Tetra Laval Holdings & Finance S.A. Dispositif d'évaporation de peroxyde d'hydrogène, et procédé pour l'évaporation de peroxyde d'hydrogène

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013106531A1 (de) * 2013-06-21 2014-12-24 Elopak Systems Ag Verdampfungseinrichtung zum Verdampfen eines Aerosols
DE102023125155A1 (de) * 2023-09-18 2025-03-20 Khs Gmbh Verfahren sowie Vorrichtung zur Innenraum-Behandlung von Kegs

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002015946A1 (fr) * 2000-08-21 2002-02-28 Tetra Laval Holdings & Finance S.A. Dispositif de sterilisation d'emballages au peroxyde d'hydrogene
JP4075093B2 (ja) * 1997-03-18 2008-04-16 凸版印刷株式会社 容器の殺菌装置
US20100276028A1 (en) * 2007-04-27 2010-11-04 Daryoush Sangi Method and apparatus for the cleaning of containers such as plastic bottles in a bottle filling plant or containers in a container filling plant

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5258162A (en) * 1989-11-07 1993-11-02 Tetra Alfa Holdings S.A. Method of producing a gaseous hydrogen peroxide-containing sterilization fluid
DE10019047A1 (de) * 2000-04-18 2001-10-25 Tetra Laval Holdings & Finance Vorrichtung zum Sterilisieren von Packungen
DE102004030956B4 (de) * 2004-06-26 2017-03-30 Khs Gmbh Verfahren zum Sterilisieren von Flaschen oder dgl. Behälter sowie Sterilisator zum Durchführen dieses Verfahrens
DE102008039674A1 (de) * 2008-08-26 2010-03-04 Khs Ag Verfahren und Vorrichtung zur Sterilisierung von Behältern

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4075093B2 (ja) * 1997-03-18 2008-04-16 凸版印刷株式会社 容器の殺菌装置
WO2002015946A1 (fr) * 2000-08-21 2002-02-28 Tetra Laval Holdings & Finance S.A. Dispositif de sterilisation d'emballages au peroxyde d'hydrogene
US20100276028A1 (en) * 2007-04-27 2010-11-04 Daryoush Sangi Method and apparatus for the cleaning of containers such as plastic bottles in a bottle filling plant or containers in a container filling plant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017186733A1 (fr) * 2016-04-27 2017-11-02 Tetra Laval Holdings & Finance S.A. Dispositif d'évaporation de peroxyde d'hydrogène, et procédé pour l'évaporation de peroxyde d'hydrogène

Also Published As

Publication number Publication date
DE102011104873A1 (de) 2012-12-13
DE102011104873B4 (de) 2013-04-18

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