EP0878670A2 - Dispositif de travail, en particulier établi de sécurité - Google Patents

Dispositif de travail, en particulier établi de sécurité Download PDF

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Publication number
EP0878670A2
EP0878670A2 EP98105078A EP98105078A EP0878670A2 EP 0878670 A2 EP0878670 A2 EP 0878670A2 EP 98105078 A EP98105078 A EP 98105078A EP 98105078 A EP98105078 A EP 98105078A EP 0878670 A2 EP0878670 A2 EP 0878670A2
Authority
EP
European Patent Office
Prior art keywords
uvc
housing
work
air
working device
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Withdrawn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
EP98105078A
Other languages
German (de)
English (en)
Inventor
Heinz Bähren
Martin Dr.-Ing. Kirsten
Andreas Dr. Bermpohl
Siegfried Dipl.-Ing. Becker
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.)
Bahren & Rosenkranz KG (baro)
Original Assignee
Bahren & Rosenkranz KG (baro)
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 Bahren & Rosenkranz KG (baro) filed Critical Bahren & Rosenkranz KG (baro)
Publication of EP0878670A2 publication Critical patent/EP0878670A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L1/00—Enclosures; Chambers
    • B01L1/02—Air-pressure chambers; Air-locks therefor
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F3/00—Show cases or show cabinets
    • A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
    • A47F3/0404—Cases or cabinets of the closed type
    • A47F3/0426—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
    • B08B15/023—Fume cabinets or cupboards, e.g. for laboratories
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
    • F24F3/163—Clean air work stations, i.e. selected areas within a space which filtered air is passed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
    • F24F8/22—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using UV light
    • 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042—Air treating means within refrigerated spaces
    • 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
    • F25D2317/04—Treating air flowing to refrigeration compartments
    • F25D2317/041—Treating air flowing to refrigeration compartments by purification
    • F25D2317/0417—Treating air flowing to refrigeration compartments by purification using an UV-lamp

Definitions

  • the present invention relates to a work device, in particular a security workbench or refrigerated counter, with a work space that has at least one lockable access opening has a ventilation device that the work room supplies fresh and / or cleaned air and out of the work area Exhausts air through a flow channel.
  • a ventilation device that the work room supplies fresh and / or cleaned air and out of the work area Exhausts air through a flow channel.
  • the invention relates to a method for cleaning Contaminated air in the work area of a safety workbench is included.
  • the well-known safety cabinets work on the same Basic principle that the air contained in the work area is continuous aspirated and cleaned in a filter device is returned to the work area as a circulation or as a partial flow after passing a filter into the environment is fired.
  • Class 1 safety cabinets use room air without filtering sucked in and through a high-performance particle filter, also called HOSCH filter or HEPA filter, above in the Dismiss room.
  • HOSCH filter also called HEPA filter
  • HEPA filter high-performance particle filter
  • Class 2 safety cabinets are most commonly used. There is a vertical one from above in the work area downward flow of low turbulence displacement air. At In this embodiment, both those in the work space incoming air and exhaust air through a HOSCH filter cleaned. Here too, the windscreen is partially in operation open, with the access opening below the viewing window located.
  • Class 3 safety cabinets are for working with organisms and viruses of security level L4 or P4 are mandatory. I am dealing with a closed work space with at least one material lock, in which a lower one Pressure than prevails in the area.
  • the supply air is through one that cleans the exhaust air through at least two HOSCH filters, before it gets outside through an exhaust air system. in the Work space can only be used with airtight, arm-length gloves or manipulators.
  • Another problem is that the used HOSCH filters represent hazardous waste and accordingly on expensive Way must be disposed of.
  • the object of the invention is therefore a work device of the type mentioned at the outset so that the maintenance intervals are significantly extended.
  • an irradiation device provided with at least one UVC lamp is the exhaust air coming from the work area with UVC radiation to treat and so microorganisms contained in the flow at least partially kill it.
  • the invention is based on the basic idea that in the It contains bacteria, fungi, spores, viruses and the like kill them before, for example, in the filters of safety cabinets occur so that hardly any more in the filters biologically active organisms or substances are present. On the one hand, this can significantly increase the service life of the filter will. This can be explained by the fact that an increase of microorganisms in the filters used in conventional Safety cabinets due to the residual biological activity of microorganisms can still be avoided.
  • UVC treatment of the air also offers an additional one Security, such as in the case of leaking or contaminated HOSCH filters come into play.
  • UVC low-pressure lamps with a total output of at least 9 ⁇ W must be provided.
  • the radiation device only contains ozone-free UVC lamps.
  • Ozone-free emitters have compared to ozone-forming emitters the advantage that no ozone inside and outside the work equipment occurs through which stainless steel etc. attacked can be.
  • the irradiation device preferably has one of in the exhaust air and against the escape of UVC rays shielded housing, which prevents the aggressive UVC rays other components of the safety cabinet attack.
  • the housing can be an integral part of the safety cabinet be.
  • Irradiation device provided a separate housing, so that the irradiation device is a modular unit forms, which can also be retrofitted to existing safety cabinets be attached and complete in the event of defects can be exchanged.
  • the housing inner wall in the area of the radiation path in which the exhaust air is the UVC emitters are led past, the UVC radiation reflective surface. This can reduce the effectiveness the UVC lamp can be increased significantly.
  • Such one Material that reflects UVC radiation is, for example, aluminum.
  • the housing inner wall in the area of the housing inlet and the housing outlet with UVC radiation absorbent surface. You can also in the area the housing inlet and / or the housing outlet of the housing Apertures may be provided to exit the housing Shade UVC radiation.
  • the invention is based on the invention a control device for monitoring the function the irradiation device provided.
  • This control device can have an optical or acoustic alarm device, the malfunctions, in particular failures of the UVC lamps, displays.
  • the control device can also be designed to determine the safety cabinet at certain Malfunctions automatically switches off and / or on Prevented from turning on her.
  • a replacement UVC lamp is preferably provided, which is switched on by the control device if one the regular UVC lamp fails.
  • the irradiation device is expediently on the rear side of the work area, where also existing ones Safety cabinets have sufficient space available stands.
  • the radiation device provided according to the invention can for all known constructions of safety cabinets be used.
  • a safety workbench 1 according to the invention is shown in FIG. It is a typical safety workbench Class 2, especially for use in microbiological and biotechnological laboratories.
  • the safety cabinet 1 comprises a frame 2, which is a workbench housing 3 wears.
  • a work space 4 is located in the workbench housing 3 provided, which is sealed all around and on his Front has a sliding window 5, which is shown in the open position an access opening 6 in the lower Area of the work space 4 releases.
  • the floor 7 of the work space 4 is grid-like at least in some areas trained so that the contained in the work space 4 Air through a ventilation device, not shown, for example a blower or a pump, from the work area 4 into a flow channel 8 formed in the workbench housing 3 can be sucked in, the sucked exhaust air one above of the work area 4 provided filter device 9 and extends along the back of the work space 4.
  • the flow channel 8 divides immediately before entering into the filter device 9 to convert the exhaust air into a circulating air flow, that of the working space 4 via a first filter 9a is returned, and an exhaust air flow that over a second filter 9b is released to the environment to separate.
  • Both filters 9a, 9b are High performance particulate filter.
  • an irradiation device 1 ⁇ provided, to the exhaust air coming from work room 4 before entering to irradiate the filter device 9 with UVC radiation and so At least 99.9% of microorganisms contained in the exhaust air kill.
  • the radiation device comprises 1 ⁇ several, three in the illustrated embodiment, Ozone-free UVC lamp 11, which is arranged in a housing 12 are, and forms an independent, modular unit, so that they can also be retrofitted to existing safety cabinets can be.
  • the housing 12 consists essentially of aluminum, i.e. a material that is resistant to UVC rays and in particular also reflects UVC rays, reducing radiation in the area of the radiation path, in which the exhaust air to the UVC emitters 11 is carried out particularly effectively can. Otherwise, the housing 12 is against the escape of Shielded from UVC rays, with the housing inlet 13 and the housing outlet 14 each aperture 15 are provided, which the Deflect the exhaust air flow by 9 ° and on the inside of the housing 12b have a UVC radiation absorbing layer, for example are painted black.
  • contaminated air is sucked out of the working space 4 through the grating areas of the floor 7 into the flow channel 8 by the ventilation device, whereby ambient air is also partly sucked in through the access opening 6, which reliably prevents contaminated air from being passed outside through the access opening 6 reached.
  • the exhaust air then enters the housing 12 of the irradiation device 1 ⁇ , where it is treated by the UVC emitters 11 with UVC radiation.
  • the emitter power is designed so that 99.9% of the bacteria, fungi, spores, viruses and the like contained in the exhaust air are killed. With an exhaust air volume of 6 ⁇ m 3 / h, a total radiator output of 9 ⁇ W is required.
  • housing inner wall 12a reflects the UVC radiation in the region of the radiation path results in a particularly high effectiveness.
  • the UVC radiation-absorbing coating in the area of housing inlet 13 and housing outlet 14 prevents the aggressive UVC radiation from escaping from housing 12 and damaging other components made of plastic or stainless steel.
  • Exhaust air containing material is then in itself known way in part as exhaust air through the second filter 9b discharged from the workbench housing 3 to the environment and to Part as recirculating air through the first filter 9a into the work space 4 led back over its top.
  • the safety workbench 1 shown has one Control device for monitoring the function of the radiation device 1 ⁇ on.
  • This control device comprises one optical or acoustic alarm device 16, which in Figure is indicated schematically as a hazard warning lamp 16 to malfunction the irradiation device 1 ⁇ , in particular lamp failures, display.
  • the control device is still coupled with the control of the safety cabinet to the safety cabinet 1 automatically turn off when a critical Operating state of the irradiation device 1 ⁇ by appropriate Sensors of the control device is determined.
  • the radiation device 1 ⁇ has a replacement UVC lamp, which by the Control device is switched on if one of the regular UVC lamp 11 fails.
  • the invention has been achieved a work facility designed as a safety cabinet shown as an example.
  • the invention is the same Way for other work facilities such as PCR workbenches, workbenches for cell cultures and also refrigerated counters Suitable when it comes to working in the work facility sterilize the air it contains.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
EP98105078A 1997-05-15 1998-03-20 Dispositif de travail, en particulier établi de sécurité Withdrawn EP0878670A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19720328 1997-05-15
DE19720328 1997-05-15

Publications (1)

Publication Number Publication Date
EP0878670A2 true EP0878670A2 (fr) 1998-11-18

Family

ID=7829509

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98105078A Withdrawn EP0878670A2 (fr) 1997-05-15 1998-03-20 Dispositif de travail, en particulier établi de sécurité

Country Status (2)

Country Link
EP (1) EP0878670A2 (fr)
DE (1) DE29804941U1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2824626A1 (fr) * 2001-05-14 2002-11-15 Pierre Bridenne Procede et dispositif pour diffuser un flux de protection a l'egard d'une ambiance environnante
EP1312871A1 (fr) * 2001-11-20 2003-05-21 BERNER INTERNATIONAL GmbH Etabli de sécurité
WO2004024563A1 (fr) * 2002-08-27 2004-03-25 Josef Keuchel Procede, dispositif et rouleau de sacs pour preparer des substances dangereuses
EP1721684A2 (fr) * 2005-05-09 2006-11-15 Liconic Ag Enceinte utilitaire avec dispositif in situ de désinfection
CN102858079A (zh) * 2012-09-05 2013-01-02 南京大学 一种直线加速器的有害气体吸收装置
RU2765550C1 (ru) * 2021-04-05 2022-02-01 Александр Юрьевич Петров Ламинарный шкаф
DE102020127872A1 (de) 2020-10-22 2022-04-28 Index-Werke Gmbh & Co. Kg Hahn & Tessky Produktionsvorrichtung
ES2932414A1 (es) * 2021-07-06 2023-01-18 Jimenez Millan Adolfo Mobiliario para la reunión de dos o más personas
CN117109223A (zh) * 2023-10-25 2023-11-24 贵州健易测科技有限公司 一种农产品冷藏温湿度调控装置及温湿度调控方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19858883C2 (de) * 1998-12-19 2001-02-01 Kf Strahltechnik Dresden Verfahren und Vorrichtung zur Entstaubung von Räumen mit hoher Staubbelastung
DE20202026U1 (de) * 2002-02-11 2003-06-26 Tillmanns Kurt Vorrichtung zur Reduzierung der Luftkontamination
DE102010043522A1 (de) * 2010-11-05 2012-05-10 Dürr Ecoclean GmbH Vorrichtung und Anlage zum Temperieren von Gegenständen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7297050B2 (en) 2001-05-14 2007-11-20 Acanthe Method and device for diffusing a protective flux with regard to a surrounding environment
WO2002093082A1 (fr) * 2001-05-14 2002-11-21 Acanthe Sarl Procede et dispositif pour diffuser un flux de protection a l'egard d'une ambiance environnante
FR2824626A1 (fr) * 2001-05-14 2002-11-15 Pierre Bridenne Procede et dispositif pour diffuser un flux de protection a l'egard d'une ambiance environnante
EP1312871A1 (fr) * 2001-11-20 2003-05-21 BERNER INTERNATIONAL GmbH Etabli de sécurité
WO2004024563A1 (fr) * 2002-08-27 2004-03-25 Josef Keuchel Procede, dispositif et rouleau de sacs pour preparer des substances dangereuses
EP1721684A3 (fr) * 2005-05-09 2008-07-30 Liconic Ag Enceinte utilitaire avec dispositif in situ de désinfection
EP1721684A2 (fr) * 2005-05-09 2006-11-15 Liconic Ag Enceinte utilitaire avec dispositif in situ de désinfection
CN102858079A (zh) * 2012-09-05 2013-01-02 南京大学 一种直线加速器的有害气体吸收装置
DE102020127872A1 (de) 2020-10-22 2022-04-28 Index-Werke Gmbh & Co. Kg Hahn & Tessky Produktionsvorrichtung
RU2765550C1 (ru) * 2021-04-05 2022-02-01 Александр Юрьевич Петров Ламинарный шкаф
ES2932414A1 (es) * 2021-07-06 2023-01-18 Jimenez Millan Adolfo Mobiliario para la reunión de dos o más personas
CN117109223A (zh) * 2023-10-25 2023-11-24 贵州健易测科技有限公司 一种农产品冷藏温湿度调控装置及温湿度调控方法
CN117109223B (zh) * 2023-10-25 2023-12-22 贵州健易测科技有限公司 一种农产品冷藏温湿度调控装置及温湿度调控方法

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Publication number Publication date
DE29804941U1 (de) 1998-08-27

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