WO2002096472A1 - Steam sterilizer - Google Patents

Steam sterilizer Download PDF

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Publication number
WO2002096472A1
WO2002096472A1 PCT/DE2002/001825 DE0201825W WO02096472A1 WO 2002096472 A1 WO2002096472 A1 WO 2002096472A1 DE 0201825 W DE0201825 W DE 0201825W WO 02096472 A1 WO02096472 A1 WO 02096472A1
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WO
WIPO (PCT)
Prior art keywords
steam
steam sterilizer
vacuum pump
sterilizer according
cooling system
Prior art date
Application number
PCT/DE2002/001825
Other languages
German (de)
French (fr)
Inventor
Rudi Dittmar
Markus Kopf
Original Assignee
Siemens Aktiengesellschaft
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 Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2002096472A1 publication Critical patent/WO2002096472A1/en

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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
    • A61L2/02—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/0206—Heat exchangers immersed in a large body of liquid
    • F28D1/0213—Heat exchangers immersed in a large body of liquid for heating or cooling a liquid in a tank

Definitions

  • FIG. 1 cooling of the process water and the sterilization steam by means of a refrigeration unit
  • FIG. 2 cooling of the process water and sterilization steam using Peltier elements
  • FIG. 3 precondensation of the sterilization steam by means of a refrigeration unit or Peltier elements.
  • FIG. 1 shows a steam sterilizer with a sterilization container 1 into which distilled water is supplied from a storage container 3 via a steam generator 2.
  • the steam is sucked off via a line 4 shown in principle with valve elements 5.
  • the suction is done by a liquid ring pump 6.
  • the operating liquid in particular water, is fed via a line 7 into an operating water tank 8, in which it is cooled by a cooling unit 9.
  • the cooled process water is fed back to the liquid ring pump 6 via a further line 10.
  • the operating water is thus kept very cold, as a result of which the characteristic curve of the liquid ring pump 6 is greatly improved due to the condensation effect.
  • the installation of the steam sterilizer is therefore location independent since no water connection is necessary. If there is too much operating fluid in the operating water tank 8, a collecting tank (not shown in more detail) can be provided in order to discharge the operating water via a line 11. If necessary, distilled water is added to storage container 3.
  • the cooling unit 9 is replaced by a cooling element 12, which has cooling fins 16 for heat radiation via convection and Peltier elements 13 for cooling the process water.
  • the waste heat from the Peltier elements 13 can be used for preheating 14 the distilled water.
  • 3 shows a sterilizer container 1 in which the evacuation is carried out by a dry-running or oil-lubricated vacuum pump 15.
  • the cooling or condensation and / or separation of the steam is brought about, inter alia, by a cooling system as already described above.
  • the water obtained is preferably drained to the outside. In order to create a self-sufficient system, this water is provided, for. B. to supply a filter arrangement to restore distilled water that can be supplied to the sterilization process.

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

The aim of the invention is to create a steam sterilizer that, among other things, is independent from fresh water connections. To this end, a steam sterilizer is provided that comprises at least one sterilization reservoir (1), which obtains its sterilization steam by means of a steam generator (2), a vacuum pump (6) for evacuating the sterilization reservoir (1), and a cooling system (9).

Description

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Weitere vorteilhafte Ausgestaltungen der Erfindung sind den schematisch dargestellten Ausführungsbeispielen zu entnehmen. Darin zeigt:Further advantageous embodiments of the invention can be found in the schematically illustrated exemplary embodiments. It shows:
FIG 1 Kühlung des Betriebswassers und des Sterilisationsdampfes durch ein Kälteaggregat, FIG 2 Kühlung des Betriebswassers und des Sterilisationsdampfes mit Peltierelementen, FIG 3 Vorkondensation des Sterilisationsdampfes durch ein Kälteaggregat oder Peltierelemente.1 cooling of the process water and the sterilization steam by means of a refrigeration unit, FIG. 2 cooling of the process water and sterilization steam using Peltier elements, FIG. 3 precondensation of the sterilization steam by means of a refrigeration unit or Peltier elements.
FIG 1 zeigt einen Dampfsterilisator mit einem Sterilisationsbehälter 1 in den über einen Dampferzeuger 2 aus einem Vorratsbehälter 3 destilliertes Wasser zugeführt wird. Der Dampf wird über eine prinzipiell dargestellte Leitung 4 mit Ventilelementen 5 abgesaugt. Die Absaugung geschieht durch eine Flüssigkeitsringpumpe 6. Die Betriebsflüssigkeit, insbesondere Wasser wird über eine Leitung 7 in einen Betriebswasserbehälter 8 geführt, in dem es durch ein Kälteaggregat 9 gekühlt wird. Das gekühlte Betriebswasser wird über eine weitere Leitung 10 wieder der Flüssigkeitsringpumpe 6 zugeführt. Damit wird das Betriebswasser sehr kalt gehalten, wodurch sich die Kennlinie der Flüssigkeitsringpumpe 6 aufgrund des Kondensationseffekts stark verbessert. Die Aufstellung des Dampfste- rilisators wird somit ortsunabhängig da kein Wasseranschluss notwendig ist. Falls sich zuviel Betriebsflüssigkeit im Betriebswasserbehälter 8 befindet kann ein nicht näher dargestellter Sammelbehälter vorgesehen sein, um das Betriebswasser über einen Leitung 11 abzuleiten. Destilliertes Wasser wird gegebenenfalls im Vorratsbehälter 3 ergänzt.1 shows a steam sterilizer with a sterilization container 1 into which distilled water is supplied from a storage container 3 via a steam generator 2. The steam is sucked off via a line 4 shown in principle with valve elements 5. The suction is done by a liquid ring pump 6. The operating liquid, in particular water, is fed via a line 7 into an operating water tank 8, in which it is cooled by a cooling unit 9. The cooled process water is fed back to the liquid ring pump 6 via a further line 10. The operating water is thus kept very cold, as a result of which the characteristic curve of the liquid ring pump 6 is greatly improved due to the condensation effect. The installation of the steam sterilizer is therefore location independent since no water connection is necessary. If there is too much operating fluid in the operating water tank 8, a collecting tank (not shown in more detail) can be provided in order to discharge the operating water via a line 11. If necessary, distilled water is added to storage container 3.
In FIG 2 ist ergänzend zu der Ausführung gemäß FIG 1 das Kälteaggregat 9 durch ein Kühlelement 12 ersetzt, das Kühlrippen 16 zur Wärmeabstrahlung über Konvektion und Peltierelemente 13 zur Kühlung des Betriebswassers aufweist. Die Abwärme der Peltierelemente 13 kann zur Vorwärmung 14 des destillierten Wassers herangezogen werden. FIG 3 zeigt einen Sterilisatorbehälter 1 bei dem die Evakuierung durch einen trockenlaufende oder ölgeschmierte Vakuumpumpe 15 erfolgt. Dabei wird die Kühlung bzw. Kondensation und/oder Abscheidung des Dampfes u.a. durch ein bereits wie oben beschriebenes Kühlsystem herbeigeführt. Das dabei gewonnene Wasser wird vorzugsweise nach außen abgleitet. Um ein autarkes System zu schaffen, ist es vorgesehen, dieses Wasser z. B. einer Filteranordnung zuzuführen um destilliertes Wasser wieder herzustellen, das dem Sterilisationsprozess zu- führbar ist. In FIG. 2, in addition to the embodiment according to FIG. 1, the cooling unit 9 is replaced by a cooling element 12, which has cooling fins 16 for heat radiation via convection and Peltier elements 13 for cooling the process water. The waste heat from the Peltier elements 13 can be used for preheating 14 the distilled water. 3 shows a sterilizer container 1 in which the evacuation is carried out by a dry-running or oil-lubricated vacuum pump 15. The cooling or condensation and / or separation of the steam is brought about, inter alia, by a cooling system as already described above. The water obtained is preferably drained to the outside. In order to create a self-sufficient system, this water is provided, for. B. to supply a filter arrangement to restore distilled water that can be supplied to the sterilization process.

Claims

Patentansprüche claims
1. Dampfsterilisator mit zumindest einem Sterilisationsbehälter (1) , der seinen Sterilisationsdampf über einen Dampfer- zeuger (2) erhält, einer Vakuumpumpe (6,15) zur Evakuierung des Sterilisationsbehälters (1) und einem Kühlsystem (9,12,13) .1. Steam sterilizer with at least one sterilization container (1), which receives its sterilization steam via a steam generator (2), a vacuum pump (6, 15) for evacuating the sterilization container (1) and a cooling system (9, 12, 13).
2. Dampfsterilisator nach Anspruch 1, d a d u r c h g e - k e n n z e i c h n e t , dass die Vakuumpumpe (6,15) als2. Steam sterilizer according to claim 1, d a d u r c h g e - k e n n z e i c h n e t that the vacuum pump (6.15) as
Flüssigkeitsringpumpe (6) ausgeführt ist.Liquid ring pump (6) is executed.
3. Dampfsterilisator nach Anspruch 2, d a d u r c h g e k e n n z e i c h n e t , dass das Kühlsystem als Kälteag- gregat oder Peltierelement ausgeführt ist.3. Steam sterilizer according to claim 2, so that the cooling system is designed as a refrigeration unit or Peltier element.
4. Dampfsterilisator nach Anspruch 3, d. a d u r c h g e k e n n z e i c h n e t , dass die Abwärme des Peltierele- ments zur Vorwärmung des destillierten Wassers nutzbar ist.4. Steam sterilizer according to claim 3, d. that the waste heat from the Peltier element can be used to preheat the distilled water.
5. Dampfsterilisator nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , dass als Vakuumpumpe eine trockenlaufende oder ölgeschmierte Vakuumpumpe einsetzbar ist.5. Steam sterilizer according to claim 1, which also means that a dry-running or oil-lubricated vacuum pump can be used as the vacuum pump.
6. Dampfsterilisator nach Anspruch 5, d a d u r c h g e k e n n z e i c h n e t ,dass der Vakuumpumpe (15) eine Kühlsystem (9,12,13) und/oder ein Dampfabscheider strömungsmäßig vorgeschaltet ist.6. Steam sterilizer according to claim 5, so that the vacuum pump (15) has a cooling system (9, 12, 13) and / or a steam separator connected upstream in terms of flow.
7. . Dampfsterilisator nach einem oder mehrere der vorhergehenden Ansprüche, d a d u r c h g e k e n n z e i c h e t , dass das durch das Kühlsystem (9,12,13) oder einen Abscheider zurückgewonnene Wasser über eine Vorrichtung führbar ist, insbesondere eine Filteranordnung, und dort als des- tilliertes Wasser aufgearbeitet wird, und einem Vorratsbehäl- ter (3) zuführbar ist. 7.. Steam sterilizer according to one or more of the preceding claims, characterized in that the water recovered by the cooling system (9, 12, 13) or a separator can be passed through a device, in particular a filter arrangement, and is processed there as distilled water, and one Storage container (3) can be fed.
PCT/DE2002/001825 2001-05-31 2002-05-21 Steam sterilizer WO2002096472A1 (en)

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DE2001126634 DE10126634A1 (en) 2001-05-31 2001-05-31 Steam Sterilizer
DE10126634.0 2001-05-31

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITNA20090066A1 (en) * 2009-10-27 2011-04-28 Adiramef S R L SYSTEM FOR ABSOLUTE STERILIZATION WITH CYCLE COMBINED WITH SATURATED VAPOR AND OXYGEN PLASMA GAS.
EA014945B1 (en) * 2007-11-13 2011-04-29 Чиза С.П.А. Steam sterilizing system
ITMI20111507A1 (en) * 2011-08-05 2013-02-06 Absolute Up S R L STEAM STERILIZER
EP3020420A1 (en) * 2014-11-14 2016-05-18 Absolute Up S.r.l. Sterilising apparatus and use of said apparatus comprising autoclave and external water purification filter
EP3241566B1 (en) * 2016-05-04 2019-08-07 Miele & Cie. KG Method and device for removing incrustations from a cooling circuit for a vacuum pump for a steriliser

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111035775B (en) * 2019-12-31 2020-11-17 老肯医疗科技股份有限公司 Integrated steam pipeline discharge system for sterilization room and control method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0686400A1 (en) * 1994-06-10 1995-12-13 C. STIEFENHOFER GmbH Steam sterilizer with heat recovery
WO1996012557A1 (en) * 1994-10-24 1996-05-02 Getinge Ab An arrangement in autoclaving systems
DE4445054A1 (en) * 1994-12-07 1996-06-20 Melagapparate Gmbh & Co Kg Vacuum sterilising assembly
DE19751692A1 (en) * 1997-11-21 1999-05-27 Muenchner Medizin Mechanik Steam vessel sterilization process and assembly dispenses with cooling water
DE19930546C1 (en) * 1999-06-29 2000-06-21 Melagapparate Gmbh & Co Kg Condensate removal from a steam sterilizer working under a fractionated vacuum process by pressurizing the condenser

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0686400A1 (en) * 1994-06-10 1995-12-13 C. STIEFENHOFER GmbH Steam sterilizer with heat recovery
WO1996012557A1 (en) * 1994-10-24 1996-05-02 Getinge Ab An arrangement in autoclaving systems
DE4445054A1 (en) * 1994-12-07 1996-06-20 Melagapparate Gmbh & Co Kg Vacuum sterilising assembly
DE19751692A1 (en) * 1997-11-21 1999-05-27 Muenchner Medizin Mechanik Steam vessel sterilization process and assembly dispenses with cooling water
DE19930546C1 (en) * 1999-06-29 2000-06-21 Melagapparate Gmbh & Co Kg Condensate removal from a steam sterilizer working under a fractionated vacuum process by pressurizing the condenser

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EA014945B1 (en) * 2007-11-13 2011-04-29 Чиза С.П.А. Steam sterilizing system
ITNA20090066A1 (en) * 2009-10-27 2011-04-28 Adiramef S R L SYSTEM FOR ABSOLUTE STERILIZATION WITH CYCLE COMBINED WITH SATURATED VAPOR AND OXYGEN PLASMA GAS.
ITMI20111507A1 (en) * 2011-08-05 2013-02-06 Absolute Up S R L STEAM STERILIZER
WO2013021293A1 (en) * 2011-08-05 2013-02-14 Absolute Up S.R.L. Steam sterilizer
CN103841995A (en) * 2011-08-05 2014-06-04 阿布索鲁特奥普有限责任公司 Steam sterilizer
US9186429B2 (en) 2011-08-05 2015-11-17 Absolute Up S.R.L. Steam sterilizer
EP3020420A1 (en) * 2014-11-14 2016-05-18 Absolute Up S.r.l. Sterilising apparatus and use of said apparatus comprising autoclave and external water purification filter
EP3241566B1 (en) * 2016-05-04 2019-08-07 Miele & Cie. KG Method and device for removing incrustations from a cooling circuit for a vacuum pump for a steriliser

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