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
  • A61L2/08—Radiation
  • A61L2/10—Ultraviolet radiation
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
  • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
  • H01J5/50—Means forming part of the tube or lamps for the purpose of providing electrical connection to it
  • H01J5/52—Means forming part of the tube or lamps for the purpose of providing electrical connection to it directly applied to or forming part of the vessel
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
  • H01J61/00—Gas-discharge or vapour-discharge lamps
  • H01J61/02—Details
  • H01J61/30—Vessels; Containers
  • H01J61/305—Flat vessels or containers
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
  • H01J65/00—Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
  • H01J65/04—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels
  • H01J65/042—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field
  • H01J65/046—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field the field being produced by using capacitive means around the vessel
• • 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
  • A61L2202/10—Apparatus features
  • A61L2202/11—Apparatus for generating biocidal substances, e.g. vaporisers, UV lamps

Definitions

• the invention is based on a radiator or a device with a radiator for irradiating surfaces with electromagnetic radiation.
• the invention relates to a radiator which radiates short-wave ultraviolet (UV) radiation, preferably below 200 nm.
• UV radiation short-wave ultraviolet
• Such radiators can be used inter alia for the sterilization of flat or curved surfaces, such as films and the interior of bottles, canisters or other hollow containers.
• UV irradiation of surfaces in particular sterilization
• rinsing of the spatial area between the radiator and the surface takes place with a purge gas.
• purge gas is particularly suitable nitrogen or noble gases.
• process gas is used as a generic term for one or more suitable gases for rinsing or for other processes before, during and / or after the irradiation .
• the purge gas is previously supplied by a separate device around the radiator or from the side.
• these systems of space ⁇ reasons usually do not seat within cavities with close access openings as cans or bottles.
• the document EP 1 506 567 B1 discloses a UV emitter based on a one-sided dielectric barrier discharge.
• the discharge vessel 2 is filled with xenon.
• Currency ⁇ end of the gas discharge which is preferably operated by means of a process described in US 5,604,410 pulsed operating method are formed so-called excimers.
• Excimers are excited molecules, such as Xe2 *, which emit electromagnetic radiation when they return to the normally unbound ground state. In the case of Xe 2 *, the maximum of the molecular band radiation at about 172 nm.
• a first coil-shaped electrode 23 is disposed coaxially within the tubular Entladungsge ⁇ fäßes. 2
• six strip-shaped outer electrodes 8a-8f are arranged parallel to one another and at a mutual distance.
• the document EP 0 607 960 A1 discloses a tubular UV emitter based on a double-sided dielectric barrier discharge.
• the radiator vessel is formed in the manner of a coaxial double-tube arrangement, in which an inner tube and an outer tube are connected to each other at the two end faces gas-tight.
• the discharge space enclosed by the discharge vessel extends between the inner and outer tubes in this arrangement.
• the document EP 1 232 518 B1 discloses a flat discharge lamp based on a double-sided dielectric barrier discharge.
• the dielectric barrier discharge is generated between a bottom and a top plate, wherein the circumferential sealing frame and funnel-shaped support elements are molded into the top plate.
• the Elect roden ⁇ are as interleaved comb-like structures ⁇ applied two lines on the outer side of the bottom plate. Presentation of the invention
• the object of the present invention is to provide a device which allows irradiation of surfaces under a defined atmosphere and thereby avoids the ge ⁇ marked disadvantages of the prior art.
• a device for irradiating surfaces with a radiator which comprises a radiator vessel, wherein the radiator vessel has at least one tunnel-like through-opening, and a means that is designed ⁇ out, a process gas through the at least one tunnel-type through-hole to flow.
• the basic idea of the invention is the gas purging with a process gas, for example an inert gas such as
• Nitrogen or a noble gas not with the help of a separa ⁇ th device perform, but a radiator suitably educate so that a purge gas can escape from the radiator.
• the device according to the invention comprises a beam ⁇ ler, which is designed so that the process / purge gas from the emitter vessel itself exit and thus the space between the radiator and surface to be irradiated can be supplied.
• the radiator may have a radiator base, which is likewise designed such that the flushing gas can also flow out of the radiator base. This reduces not only on apparatus but also temporal che effort, especially in the irradiation of réelleflä ⁇ chen of hollow body where gas exchange before irradiation is necessary to date generally. In addition, the space required for the device is reduced.
• the emitter vessel has at least one tunnel-like through-opening, which is connected to a means which is designed to process a process gas through the tunnel-like passage opening to flow.
• this is a gas line or the like introduced into the entrance of the tunnel-like through hole or otherwise connected to the entrance.
• the gas supply can be done via a radiator base, which is connected to a gas line, for example by a gas hose is attached to a gas nozzle at the base end.
• the radiator base is designed so that the process gas flows from the gas line into the entrance of the tunnel-like through-opening. It can also be provided that - at least temporarily - can be switched from gas supply to Gasab ⁇ drove.
• the process gas does not pass through the discharge space itself, through, into, or out of it. Rather, the discharge space, in which a gas discharge generates the radiation in operation, also hermetically makeschlos sen in the region of the passage openings through the tunnel-like configuration. As a result, the process gas can flow through the tunnel-like passage openings without influencing the inner half of the hermetically sealed discharge vessel.
• the radiator cap may have one or more Gasöff ⁇ voltages, which are also connected to the gas agent.
• the at least one gas port of the radiator base is optionally preferably oriented so that the gas ⁇ fluid can flow in the direction radiator vessel or in the adjacent area with the surface to be irradiated for the sterilization of hollow containers such as bottles or Ka Minister of the device with the radiator is and in particular the emitter vessel itself elongated to be inserted through the opening of the container can.
• a pot-shaped at ⁇ play base can be located at one end of the elongate radiator vessel.
• radiator with ei ⁇ nem emitter vessel which comprises an inner tube and an outer tube, which are connected to each other gas-tight manner in the manner of a coaxial double tube assembly. Because with this Order of the discharge vessel enclosed by the discharge space between the inner and outer tube extends, the interior of the inner tube can be used as a tunnel-like passage opening for the Strö ⁇ tion of the purge gas.
• the purge gas is supplied for this purpose at one end of the inner tube and exits at the other end again. As a result, the purge gas exits at the end face of the emitter vessel and thus in the immediate vicinity of the radiation exiting at the end face or the surface to be irradiated in this area.
• the emitter base comprises at least one gas opening in addition, the preference ⁇ example is oriented in the direction of the radiator vessel.
• the purge gas can flow along the radiator vessel and flush the adjacent space region of the surface to be irradiated. Due to this close spatial and apparatus coupling of purge gas flow and irradiation, a particularly efficient surface treatment, in particular degerming, is possible.
• the radiator can be provided with a connection to which a gas line can be connected. Which can be guided centrally through a gas line is connected ⁇ supplied purge gas to the inner tube and, optionally, one or more gas openings in Strahlerso ⁇ ckel a base, for example, in radiators seen before ⁇ gas distributor chamber.
• the gas line can also project into the inner tube or at least be guided to the input side end of the inner tube. This alternative is especially suitable when no Gasöff ⁇ calculations are provided in the radiator base or no base is provided for the radiator.
• a gas discharge hose can also be provided in the inner tube.
• one or more gas openings or tunnel-like through-openings may generally be provided for the gas removal.
• This is particularly advantageous for the sterilization of hollow containers such as bottles or canisters with narrow container openings, where under certain circumstances little space for the outflow of the process gas remains.
• Erbil in a wide ⁇ dung of the inventive device further comprises a seal between the radiator and the container opening is provided to to prevent the ingress of ambient air into the container.
• the discharge of the process gas is exclu ⁇ Lich on the space provided gas holes in the radiator.
• the device according to the invention with an oblong radiator is generally also suitable for the irradiation of extended, for example curved or plane surfaces.
• the emitter vessel consists at least in sections of a material which is transparent to the radiation, in the case of UV radiation preferably quartz glass.
• the emitter is preferably designed for a dielectric barrier discharge in the interior of the emitter vessel.
• 1a is a longitudinal partial sectional view of a device according to the invention with a tubular radiator
• Fig. Lb is a cross-sectional view of the device
• Fig. 1a, 2a is a plan view of a device according to the invention with a flat radiator
• Fig. 2b is a longitudinal sectional view of the device
• Figures la, lb show in a highly schematic representation of a partial longitudinal sectional view and a cross ⁇ sectional view of a first embodiment of the OF INVENTION ⁇ to the invention the device 1 with a tubular radiator on the basis of a dielelektrischen barrier discharge.
• This device is particularly intended for the sterilization of hollow containers, such as bottles and canisters.
• the elongate discharge vessel of the radiator consists of an outer tube 2 and an inner tube 3 in a coaxial double tube arrangement, which thus define the longitudinal axis of the discharge vessel.
• the length of the tubes 2, 3 varies depending on the application.
• the length is preferably dimensioned such that the inner faceglassnin ⁇ is completely irradiated at immersed radiator.
• the diameters of the tubes are also preferably adapted to the application.
• the largest outer diameter ⁇ of the discharge vessel is dimensioned so that the Vorrich ⁇ device 1 with the radiator in the envisaged for the irradiation container, can be introduced into a bottle, for example by the bottle neck through.
• Both tubes 2, 3 consist of UV radiation-permeable quartz glass.
• the discharge vessel is closed at its two end faces such that an elongated, annular gap-shaped discharge space 4 is formed.
• the discharge vessel at its two ends suitably shaped, ringar- term vessel sections 5 on.
• an exhaust tube is attached (not shown) at one of the vessel ⁇ portions 5 whose is the discharge space 4 is first evacuated and then filled with 15 kPa xenon by.
• a wire mesh 6 is wound, which forms the outer electrode of the radiator.
• a narrow spiral Me ⁇ tallbahn be applied for this purpose.
• a metal tube 7 is arranged, which forms the inner electrode of the lamp.
• a conductive layer for example made of carbon, are applied.
• a cup-shaped base 8 is arranged at one end of the Entla ⁇ tion vessel.
• the remote from the discharge vessel end face 9 has a elekt ⁇ generic socket 10 for connecting the supply voltage for the emitter. 1
• a gas connection piece 11 is attached to the front side 9, to which a purge gas hose can be attached.
• the inflowing via the gas connection pipe 11 enters purge gas inside the base 8 for so-ckelnessen end of the inner tube 3 can thus flowing a ⁇ and flow out at the other end in this.
• the inner tube 3 thus serves, in addition to its function as a discharge vessel component, as a tunnel-like passage opening for the purge gas flow.
• the purge gas can flow out of a total of eight gas openings 12, which are arranged distributed uniformly in the circumference in the annular base projection 13, from which the discharge vessel protrudes.
• FIGS 2a, 2b show a highly schematic representation of a plan view and a partial longitudinal section of an inventions ⁇ inventive device 20 with a flat radiator.
• This is a modified flat lamp based on a dielelektrischen barrier discharge such as those from the above-mentioned EP 1232518 Bl be ⁇ is known.
• the flat discharge vessel made of quartz glass because of he ⁇ required transparency for UV radiation.
• the discharge vessel itself has a rectangular basic shape with a UV radiation emitting front side 21 and an opposite rear side 22. Between front and back four tunnel-like through holes 23 are formed, the center to the transverse side and in the direction of the longitudinal side are arranged side by side.
• the tunnel-like through openings may be made for example with a flat lamp in the above-mentioned he ⁇ EP 1232518 Bl type disclosed by gas-tight penetration of one or more of the molded parts of the flat vessel funnel-like supporting points.
• the tunnel-like passage opening does not necessarily have to have a constant diameter as shown in FIGS. 2a, 2b. Rather, it may also be advantageous if the passage opening conically narrows toward the front in the manner of a flow nozzle, as long as there is still a sufficiently large opening for the gas flow remains.
• the right through openings in FIGS. 2a, 2b are provided with a purge gas hose 24, which is connected by means of a hose connection piece 25 inserted into the passage opening from the rear side 23.
• the Pro ⁇ zessgas flows substantially vertically from the radiating surface from the outlet of the passage opening.
• the remaining three passage openings may serve the process gas removal or some or all of them may also be provided with a purge gas hose for additional purge gas supply.
• the flat radiator can also be provided with a pedestal arranged at least on a narrow side or also encircling in a frame-shaped manner (not shown).
• the base protrudes beyond the front of the flat radiator vessel and has a plurality of gas openings, which are arranged so that the purge gas can flow from the side over the front of the flat radiator and consequently over the surface to be irradiated immediately adjacent during the irradiation.

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• Physics & Mathematics (AREA)
• Health & Medical Sciences (AREA)
• Electromagnetism (AREA)
• Engineering & Computer Science (AREA)
• Plasma & Fusion (AREA)
• Life Sciences & Earth Sciences (AREA)
• Epidemiology (AREA)
• Animal Behavior & Ethology (AREA)
• General Health & Medical Sciences (AREA)
• Public Health (AREA)
• Veterinary Medicine (AREA)
• Apparatus For Disinfection Or Sterilisation (AREA)
• Physical Or Chemical Processes And Apparatus (AREA)

Applications Claiming Priority (2)

Publications (1)

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ID=45001711

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• 2010
  • 2010-11-02 DE DE102010043208A patent/DE102010043208A1/de not_active Withdrawn
• 2011
  • 2011-10-26 CN CN201180052938.2A patent/CN103189075B/zh not_active Expired - Fee Related
  • 2011-10-26 EP EP11785354A patent/EP2525837A1/de not_active Withdrawn
  • 2011-10-26 WO PCT/EP2011/068770 patent/WO2012059383A1/de active Application Filing
  • 2011-10-26 US US13/812,870 patent/US8940229B2/en not_active Expired - Fee Related

Non-Patent Citations (2)

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