EP0239897B1 - Ionization device for gaseous oxygen - Google Patents

Ionization device for gaseous oxygen Download PDF

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Publication number
EP0239897B1
EP0239897B1 EP87104210A EP87104210A EP0239897B1 EP 0239897 B1 EP0239897 B1 EP 0239897B1 EP 87104210 A EP87104210 A EP 87104210A EP 87104210 A EP87104210 A EP 87104210A EP 0239897 B1 EP0239897 B1 EP 0239897B1
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EP
European Patent Office
Prior art keywords
housing
cathode
anode
aperture
appliance according
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EP87104210A
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German (de)
French (fr)
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EP0239897A1 (en
Inventor
Thomas Blach
Wolfgang Wichern
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Biomed-Electronic & Co Medizinischer Geratebau KG GmbH
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Biomed-Electronic & Co Medizinischer Geratebau KG GmbH
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Priority claimed from DE8608913U external-priority patent/DE8608913U1/en
Priority claimed from DE19873702337 external-priority patent/DE3702337A1/en
Application filed by Biomed-Electronic & Co Medizinischer Geratebau KG GmbH filed Critical Biomed-Electronic & Co Medizinischer Geratebau KG GmbH
Priority to AT87104210T priority Critical patent/ATE50891T1/en
Publication of EP0239897A1 publication Critical patent/EP0239897A1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T23/00—Apparatus for generating ions to be introduced into non-enclosed gases, e.g. into the atmosphere

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  • the invention relates to a device for ionizing gaseous oxygen, with a housing with an inflow opening and an outflow opening for oxygen or for air, and each with an anode and cathode arranged in the housing, the anode and the cathode being designed as electrode wires stretched transversely to the flow direction are.
  • the invention relates to a device for ionizing oxygen in ambient air.
  • the housing is preferably made of insulating material, in particular PVC
  • the electrode wires are preferably made of copper and the electrode wires are preferably provided with a lacquer layer.
  • the known device from which the invention is based (DE-A-34 11 335) allows very high ion concentrations or corresponding charge carrier concentrations to be achieved without ozone being formed, and also prevents the formation of further pollutants such as nitrogen oxides. Due to the special arrangement and design of the anode and cathode of the known device, the interaction of the oxygen molecules, either in pure oxygen or in the oxygen in the air, is just intense enough to enable ionization, but too low to form atomic oxygen as a preliminary stage of the formation of ozone.
  • the known device for ionizing gaseous oxygen is particularly intended for use in medical applications.
  • a high positive ionization of the medical oxygen is important here.
  • ionization devices with larger volumes are known (DE-B-25 45 905), which work with relatively low ion concentrations in the outflowing room air.
  • positively ionized room air or negatively ionized room air can be obtained, depending on whether the anode is arranged behind the cathode in the flow direction or in front of the cathode in the flow direction.
  • electrostatic charges can only be eliminated in a room if they happen to have opposite polarity to the ionization polarity. Otherwise these charges may even be increased.
  • the invention is based on the object of specifying a device for ionizing gaseous oxygen, in particular oxygen in ambient air, with which it is possible to ionize free of pollutants and in a charge-neutral manner and to always eliminate electrostatic charges.
  • the device according to the invention in which the above-mentioned object is achieved, is initially characterized in that two separate flow paths are formed in the housing between the inflow opening and the outflow opening, the anode is arranged in the first flow path and the cathode is arranged in the second flow path, and both flow paths have one Counter electrode is assigned.
  • the counter electrode is preferably arranged at the beginning or at the end of the flow paths, in particular a counter electrode that can be at ground potential is provided for both flow paths. It is therefore essential that the device according to the invention can be polarized, that is, negative and positive ionization at the same time. As in the known device, this can be done free of pollutants by the measures taken there.
  • the first exemplary embodiment of a device according to the invention for ionizing gaseous oxygen, in particular oxygen in ambient air, shown in FIG. 1, initially has a housing 1, preferably made of insulating material, in particular PVC.
  • the housing 1 has a bottom 2, two side walls 3 arranged essentially parallel to one another and a ceiling 4 lying opposite the floor.
  • a partition 5 arranged parallel to the side walls 3, which likewise in the preferred embodiment shown here and made of insulating material, in particular PVC, and their function later in more detail will be explained.
  • the ceiling 4 is partially cut open in order to be able to represent innards of the housing 1.
  • the housing 1 has an inflow opening 6 on the rear side in FIG. 1.
  • the inflow opening 6 can be arranged in a rear wall of the housing 1, but the housing 1 can also simply be open on the rear side so as to form the inflow opening 6 for oxygen or the air to be ionized.
  • An inflow opening 7 for the oxygen or air is located opposite the inflow opening 6 on the side lying at the front in FIG. 1.
  • the outflow opening 7 is arranged here in dash-dotted lines in a front wall 8 of the housing 1, indicated by dash-dotted lines.
  • various operating elements 9 are also drawn in dash-dotted lines, which have no particular significance for the teaching of the invention and therefore do not need to be explained further here.
  • Fig. 1 shows because of the cut ceiling 4 that an anode 10 and cathode 11 are arranged in the housing 1 of this device.
  • the anode 10 and the cathode 11 are here, in accordance with the prior art from which the invention is based, preferably designed as electrode wires stretched transversely to the direction of flow, which consist of copper and are provided with a lacquer layer. What can be achieved in detail with this design of the anode 10 and the cathode 11 can be found in DE-A-34 11 335.
  • two separate flow paths 12, 13 are formed in the housing 1 between inflow opening 6 and outflow opening 7, that the anode 10 is arranged in the first flow path 12 and the cathode 11 is arranged in the second flow path 13, and that both flow paths 12, 13 is assigned a counter electrode 14, preferably arranged at the beginning (or at the end) of the flow paths 12, 13, preferably a counter electrode 14 common to both flow paths 12, 13, in particular a counter electrode 14 which is at ground potential.
  • the counter electrode 14 is located at the beginning of the flow paths 12, 13, that is to say at the inflow opening 6 of the housing 1.
  • the counter electrode 14 could, however, also be arranged quite differently, for which there will be further explanations later.
  • FIG. 1 shows that the anode 10 and the cathode 11 are arranged one behind the other, in a preferred manner in alignment with one another.
  • the flow paths 12, 13 are here, as it were, flat next to one another and the inflow opening 6 for both flow paths 12, 13 is accordingly essentially elongated-rectangular. This results in a particularly even flow of air and, accordingly, a particularly even and optimal ionization.
  • Fig. 1 shows that the anode 10 and the cathode 11 are inserted here in the housing 1 made of insulating material. In the exemplary embodiment shown here, they are fastened by means of fastening screws 15. If the housing 1, which would also be entirely possible, were made entirely of metal, then the housing 1 could form the counterelectrode, the fastening elements of the anode 10 and the cathode 11 would have to be made of insulating material in order to ensure adequate insulation in the housing 1 . The same applies to the partition 5 of the housing 1, which at the same time forms the mounting of the free ends of the anode 10 and the cathode 11 in the embodiment shown in FIG. 1.
  • another, independent and independent teaching of the invention is that the voltage supply of the anode 10 and / or the cathode 11 via a side of the anode 10 or the cathode 11 entering the housing 1 at a certain distance from the housing wall is connected to the anode 10 or the cathode 11, preferably back to the housing wall on the anode 10 or the cathode 11 wound lead wire 16.
  • This construction creates a field inhomogeneity precisely defined by the size, shape and position of the lead wire 16 on the side of the voltage supply, which facilitates the start of ionization.
  • This teaching of the invention can also be used when the device for ionization has only one flow path with, as is known per se, anodes and cathodes lying one behind the other.
  • the inflow opening 6 and the outflow opening 7 are elongated and approximately rectangular.
  • the counter electrode 14 is now a frame made of electrically conductive material surrounding the inflow opening 6 (or the outflow opening 7). This results in a particularly homogeneous, uniformly distributed field strength of the electrical field between the anode 10 or the cathode 11 on the one hand and the counter electrode 14, in particular in the case of an elongated and approximately rectangular design of the inflow opening 6 and, as in FIG. 1, adjacent flow paths 12, 13 achieved on the other hand.
  • Fig. 2 shows an embodiment of a device according to the invention, which is intended and suitable in particular for attachment to the outlet opening of a ventilation system, for example in a building wall 17 at the outlet of an air conditioning duct is used.
  • This device is no longer explained insofar as it corresponds to the device from FIG. 1. This is indicated by the same reference numerals.
  • the anode 10 and the cathode 11 are arranged side by side here, and in accordance with the preferred teaching, parallel to one another.
  • the two parallel flow paths 12 for the anode 10 and 13 for the cathode 11 are not here, as in FIG. 1, flat, elongated next to one another, but parallel next to one another or one above the other.
  • the counter electrode 14 is a partition wall in the housing 1 that separates the two flow paths 12, 13.
  • the counter electrode 14 therefore takes on the electrical function on the one hand, and on the other hand the mechanical function of the partition wall 5 in the exemplary embodiment according to FIG. 1.
  • the exemplary embodiment shown here shows a device for ionizing gaseous oxygen that is independent of an external air flow.
  • a blower housing 18 is attached to the housing 1 on the inflow side.
  • a tangential roller blower 19 is arranged in the blower housing 18.
  • Such a tangential roller blower 19 corresponds in a particularly expedient manner to flow paths 12, 13 arranged flat next to one another and an elongated rectangular inflow opening 6 in the housing 1.
  • other blower types of conventional construction can also be used here.
  • the blower housing 18 in the exemplary embodiment shown in FIG. 1 now offers a special possibility of elegantly integrating the counter electrode 14.
  • the frame forming the counter electrode 14 is the edge of the blower housing 18 which at least in this respect is made of electrically conductive material and surrounds the inflow opening 6. If, as is often provided, the blower housing 18 is made entirely of metal, the function of the counterelectrode 14 can be taken over by simply grounding the blower housing 18 from the edge adjoining the inflow opening 6.
  • the outflow opening 7 is a static excess pressure inside the housing 1, preferably an excess pressure of at least 10 mbar.
  • a static excess pressure preferably an excess pressure of at least 10 mbar.
  • the outflow opening 7 is recommended here to provide the outflow opening 7 with a dynamic pressure insert, which is not shown in the figures and which can have the form of a grid, fabric, sponge or the like.
  • the dynamic pressure insert is a fabric made of metallic material, for example a grid
  • the outflow opening 7, but in particular the dynamic pressure insert itself is at ground potential. This measure is expedient in order not to allow any interference potential to arise at the outflow opening 7 or in the dynamic pressure insert itself.
  • FIG. 3 now shows an entire ionization system for a particularly large-area air outlet opening 20, as can be used, for example, for larger, air-conditioned conference rooms.
  • This ionization system is now characterized in that several devices for ionizing gaseous oxygen, in particular oxygen in ambient air, in particular several devices of the type explained above, are arranged next to one another but at a distance from one another.
  • Each of these devices 21 can be a complete device of the type explained above, that is to say emit an air flow with positive and negative charge on the outlet side.
  • tests have shown that it is sufficient for such an ionization system overall that the devices 21 are constructed or connected in such a way that the exiting air stream is alternately enriched with positive and negative charge carriers.
  • devices known from DE-A-34 11 335 could also serve as devices 21.

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  • Electrostatic Separation (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zur lonisation von gasförmigem Sauerstoff, mit einem Gehäuse mit einer Zuströmöffnung und einer Abströmöffnung für den Sauerstoff oder für Luft und mit je einer im Gehäuse angeordneten Anode und Kathode, wobei die Anode und die Kathode als quer zur Strömungsrichtung gespannte Elektrodendrähte ausgeführt sind. Insbesondere betrifft die Erfindung eine Vorrichtung zur Ionisation von Sauerstoff in Raumluft. Im übrigen besteht das Gehäuse vorzugsweise aus Isolierstoff, insbesondere aus PVC, bestehen die Elektrodendrähte vorzugsweise aus Kupfer und sind die Elektrodendrähte vorzugsweise mit einer Lackschicht versehen.The invention relates to a device for ionizing gaseous oxygen, with a housing with an inflow opening and an outflow opening for oxygen or for air, and each with an anode and cathode arranged in the housing, the anode and the cathode being designed as electrode wires stretched transversely to the flow direction are. In particular, the invention relates to a device for ionizing oxygen in ambient air. Otherwise, the housing is preferably made of insulating material, in particular PVC, the electrode wires are preferably made of copper and the electrode wires are preferably provided with a lacquer layer.

Die bekannte Vorrichtung, von der die Erfindung ausgeht (DE-A-34 11 335), erlaubt es, sehr hohe Ionenkonzentrationen bzw. entsprechende Ladungsträgerkonzentrationen zu erzielen, ohne daß Ozon gebildet wird, und verhindert auch die Bildung weiterer Schadstoffe wie beispielsweise Stickoxide. Aufgrund der besonderen Anordnung und Ausgestaltung von Anode und Kathode der bekannten Vorrichtung ist die Wechselwirkung der Sauerstoffmoleküle entweder in reinem Sauerstoff oder im Sauerstoff der Luft gerade intensiv genug, um eine Ionisierung zu ermöglichen, jedoch zu gering, um eine Bildung atomaren Sauerstoffs als Vorstufe der Bildung von Ozon zu ermöglichen.The known device from which the invention is based (DE-A-34 11 335) allows very high ion concentrations or corresponding charge carrier concentrations to be achieved without ozone being formed, and also prevents the formation of further pollutants such as nitrogen oxides. Due to the special arrangement and design of the anode and cathode of the known device, the interaction of the oxygen molecules, either in pure oxygen or in the oxygen in the air, is just intense enough to enable ionization, but too low to form atomic oxygen as a preliminary stage of the formation of ozone.

Die bekannte Vorrichtung zur Ionisation von gasförmigen Sauerstoff ist insbesondere für den Einsatz für medizinische Anwendung bestimmt. Hier kommt es vorzugsweise auf eine hohe positive Ionisation des medizinischen Sauerstoffs an. Mit der bekannten Vorrichtung läßt sich daher auch nur entweder eine positive oder eine negative Ionisation der Luft bzw. des Sauerstoffs realisieren.The known device for ionizing gaseous oxygen is particularly intended for use in medical applications. A high positive ionization of the medical oxygen is important here. With the known device, therefore, only either positive or negative ionization of the air or oxygen can be realized.

Für die Ionisation von Raumluft generell sind lonisationsvorrichtungen mit größeren Volumina bekannt (DE-B-25 45 905), die mit relativ geringen lonenkonzentrationen in der abströmenden Raumluft arbeiten. Auch hier kann man positiv ionisierte Raumluft oder negativ ionisierte Raumluft gewinnen, je nach dem, ob hier die Anode in Strömungsrichtung hinter der Kathode oder in Strömungsrichtung vor der Kathode angeordnet ist. Hier wie auch bei der zuvor erläuterten Vorrichtung, von der die Erfindung ausgeht, sind jedenfalls elektrostatische Ladungen in einem Raum nur dann eliminierbar, wenn sie zufällig entgegengesetzte Polarität zur Ionisationspolarität haben. Ansonsten werden diese Ladungen unter Umständen sogar noch verstärkt.For the ionization of room air in general, ionization devices with larger volumes are known (DE-B-25 45 905), which work with relatively low ion concentrations in the outflowing room air. Here too, positively ionized room air or negatively ionized room air can be obtained, depending on whether the anode is arranged behind the cathode in the flow direction or in front of the cathode in the flow direction. Here, as in the case of the device explained above, from which the invention is based, electrostatic charges can only be eliminated in a room if they happen to have opposite polarity to the ionization polarity. Otherwise these charges may even be increased.

Die Erfindung liegt nun die Aufgabe zugrunde, eine Vorrichtung zur Ionisation von gasförmigem Sauerstoff, insbesondere von Sauerstoff in Raumluft, anzugeben, mit der schadstofffrei und ladungsneutral ionisiert werden kann und elektrostatische Ladungen stets eliminiert werden können.The invention is based on the object of specifying a device for ionizing gaseous oxygen, in particular oxygen in ambient air, with which it is possible to ionize free of pollutants and in a charge-neutral manner and to always eliminate electrostatic charges.

Die erfindungsgemäße Vorrichtung, bei der die zuvor aufgezeigte Aufgabe gelöst ist, ist zunächst dadurch gekennzeichnet, daß im Gehäuse zwischen der Zuströmöffnung und der Abströmöffnung zwei getrennte Strömungswege ausgebildet sind, im ersten Strömungsweg die Anode und im zweiten Strömungsweg die Kathode angeordnet ist und beiden Strömungswegen eine Gegenelektrode zugeordnet ist. Vorzugsweise ist die Gegenelektrode am Anfang oder am Ende der Strömungswege angeordnet, ist insbesondere eine für beide Strömungswege gemeinsame Gegenelektrode, die auf Massepotential liegen kann, vorgesehen. Wesentlich ist also, daß mit der erfindungsgemäßen Vorrichtung polar, also gleichzeitig negativ und positiv ionisiert werden kann. Dies kann wie bei der bekannten Vorrichtung durch die dort getroffenen Maßnahmen schadstofffrei geschehen. In den beiden Strömungswegen werden an die Schmutzpartikelchen in der Raumluft Kleinionen angelagert. Sukzessive bilden sich auch Großionen und diese werden nach dem Austritt aus der Abströmöffnung wegen des Vermischens negativer und positiver Potentiale elektrisch neutralisiert, so daß letztlich im Raum ein potentialfreies, ideales Klima entsteht. Gleichzeitig werden elektrostatische Ladungen unabhängig von deren Polarität mit eliminiert.The device according to the invention, in which the above-mentioned object is achieved, is initially characterized in that two separate flow paths are formed in the housing between the inflow opening and the outflow opening, the anode is arranged in the first flow path and the cathode is arranged in the second flow path, and both flow paths have one Counter electrode is assigned. The counter electrode is preferably arranged at the beginning or at the end of the flow paths, in particular a counter electrode that can be at ground potential is provided for both flow paths. It is therefore essential that the device according to the invention can be polarized, that is, negative and positive ionization at the same time. As in the known device, this can be done free of pollutants by the measures taken there. In the two flow paths, small ions are attached to the dirt particles in the room air. Large ions are also gradually formed and these are electrically neutralized after exiting the outflow opening due to the mixing of negative and positive potentials, so that ultimately a potential-free, ideal climate is created in the room. At the same time, electrostatic charges are eliminated regardless of their polarity.

Bevorzugte Ausgestaltungen und Weiterbildungen der Lehre der Erfindung bzw. weitere bevorzugte Lehren der Erfindung sind in den Unteransprüchen erläutert. Sie werden nachfolgend auch noch in Verbindung mit der Erläuterung bevorzugter Ausführungsbeispiele der Erfindung anhand der Zeichnung näher erläutert. In der Zeichnung zeigt

  • Fig. 1 ein erstes Ausführungsbeispiel einer erfindungsgemäßen Vorrichtung in perspektivischer Ansicht, teilweise geöffnet, sehr schematisch,
  • Fig. 2 ein weiteres Ausführungsbeispiel einer erfindungsgemäßen Vorrichtung in einer Fig. 1 ähnlichen Darstellung und
  • Fig. 3 ein drittes Ausführungsbeispiel einer erfindungsgemäßen Vorrichtung im Rahmen einer großflächigen lonisationsanlage.
Preferred refinements and developments of the teaching of the invention or further preferred teaching of the invention are explained in the subclaims. They are also explained in more detail below in connection with the explanation of preferred exemplary embodiments of the invention with reference to the drawing. In the drawing shows
  • 1 shows a first embodiment of a device according to the invention in perspective view, partially opened, very schematic,
  • Fig. 2 shows another embodiment of a device according to the invention in a representation similar to Fig. 1 and
  • Fig. 3 shows a third embodiment of a device according to the invention in the context of a large-area ionization system.

Das in Fig. 1 dargestellte erste Ausführungsbeispiel einer erfindungsgemäßen Vorrichtung zur Ionisation von gasförmigem Sauerstoff, insbesondere von Sauerstoff in Raumluft, weist zunächst ein vorzugsweise aus Isolierstoff, insbesondere aus PVC, bestehendes Gehäuse 1 auf. Im hier dargestellten Ausführungsbeispiel hat das Gehäuse 1 einen Boden 2, zwei im wesentlichen parallel zueinander angeordnete Seitenwände 3 sowie eine dem Boden gegenüber liegende Decke 4. Etwa in der Mitte des Gehäuses 1 befindet sich eine zu den Seitenwänden 3 parallel angeordnete Trennwand 5, die gleichfalls im hier dargestellten und bevorzugten Ausführungsbeispiel aus Isolierstoff, insbesondere aus PVC, besteht und deren Funktion später noch genauer erläutert werden wird. Die Decke 4 ist teilweise aufgeschnitten, um Innereien des Gehäuses 1 darstellen zu können.The first exemplary embodiment of a device according to the invention for ionizing gaseous oxygen, in particular oxygen in ambient air, shown in FIG. 1, initially has a housing 1, preferably made of insulating material, in particular PVC. In the exemplary embodiment shown here, the housing 1 has a bottom 2, two side walls 3 arranged essentially parallel to one another and a ceiling 4 lying opposite the floor. Approximately in the middle of the housing 1 there is a partition 5 arranged parallel to the side walls 3, which likewise in the preferred embodiment shown here and made of insulating material, in particular PVC, and their function later in more detail will be explained. The ceiling 4 is partially cut open in order to be able to represent innards of the housing 1.

Das Gehäuse 1 weist auf der in Fig. 1 « hinten liegenden Seite eine Zuströmöffnung 6 auf. Die Zuströmöffnung 6 kann, insoweit hier nicht dargestellt, in einer Rückwand des Gehäuses 1 angeordnet sein, das Gehäuse 1 kann aber auch einfach auf der Rückseite offen sein, um so die Zuströmöffnung 6 für Sauerstoff bzw. die zu ionisierende Luft zu bilden. Der Zuströmöffnung 6 gegenüber befindet sich auf der in Fig. 1 « vorne liegende Seite eine Abströmöffnung 7 für den Sauerstoff bzw. die Luft. Die Abströmöffnung 7 ist hier strichpunktiert in einer strichpunktiert angedeuteten Vorderwand 8 des Gehäuses 1 angeordnet. Zu dieser Vorderwand 8 sind ebenfalls strichpunktiert noch verschiedene Bedienungselemente 9 eingezeichnet, die für die Lehre der Erfindung keine besondere Bedeutung haben und daher hier nicht weiter erläutert werden müssen.The housing 1 has an inflow opening 6 on the rear side in FIG. 1. Insofar as not shown here, the inflow opening 6 can be arranged in a rear wall of the housing 1, but the housing 1 can also simply be open on the rear side so as to form the inflow opening 6 for oxygen or the air to be ionized. An inflow opening 7 for the oxygen or air is located opposite the inflow opening 6 on the side lying at the front in FIG. 1. The outflow opening 7 is arranged here in dash-dotted lines in a front wall 8 of the housing 1, indicated by dash-dotted lines. For this front wall 8, various operating elements 9 are also drawn in dash-dotted lines, which have no particular significance for the teaching of the invention and therefore do not need to be explained further here.

Fig. 1 läßt wegen der aufgeschnittenen Decke 4 gut erkennen, daß im Gehäuse 1 dieser Vorrichtung je eine Anode 10 und Kathode 11 angeordnet sind. Die Anode 10 und die Kathode 11 sind hier in bevorzugter Weise, insoweit dem Stand der Technik, von der die Erfindung ausgeht, entsprechend, als quer zur Strömungsrichtung gespannte Elektrodendrähte ausgeführt, die aus Kupfer bestehen und mit einer Lackschicht versehen sind. Was im einzelnen mit dieser Gestaltung der Anode 10 und der Kathode 11 erreicht werden kann, läßt sich in der DE-A-34 11 335 nachlesen.Fig. 1 shows because of the cut ceiling 4 that an anode 10 and cathode 11 are arranged in the housing 1 of this device. The anode 10 and the cathode 11 are here, in accordance with the prior art from which the invention is based, preferably designed as electrode wires stretched transversely to the direction of flow, which consist of copper and are provided with a lacquer layer. What can be achieved in detail with this design of the anode 10 and the cathode 11 can be found in DE-A-34 11 335.

Wesentlich für die Lehre der Erfindung ist nun, daß im Gehäuse 1 zwischen Zuströmöffnung 6 und Abströmöffnung 7 zwei getrennte Strömungswege 12, 13 ausgebildet sind, daß im ersten Strömungsweg 12 die Anode 10 und im zweiten Strömungsweg 13 die Kathode 11 angeordnet ist und daß beiden Strömungswegen 12, 13 eine vorzugsweise am Anfang (oder am Ende) der Strömungswege 12, 13 angeordnete, Gegenelektrode 14, vorzugsweise eine für beide Strömungswege 12, 13 gemeinsame Gegenelektrode 14, insbesondere eine auf Massepotential liegende Gegenelektrode 14, zugeordnet ist. Im hier dargestellten und insoweit bevorzugten Ausführungsbeispiel befindet sich die Gegenelektrode 14 am Anfang der Strömungswege 12, 13, also an der Zuströmöffnung 6 des Gehäuses 1. Die Gegenelektrode 14 könnte aber durchaus auch ganz anders angeordnet sein, wofür es später noch weitere Erläuterungen geben wird.It is essential for the teaching of the invention that two separate flow paths 12, 13 are formed in the housing 1 between inflow opening 6 and outflow opening 7, that the anode 10 is arranged in the first flow path 12 and the cathode 11 is arranged in the second flow path 13, and that both flow paths 12, 13 is assigned a counter electrode 14, preferably arranged at the beginning (or at the end) of the flow paths 12, 13, preferably a counter electrode 14 common to both flow paths 12, 13, in particular a counter electrode 14 which is at ground potential. In the exemplary embodiment shown here and preferred in this respect, the counter electrode 14 is located at the beginning of the flow paths 12, 13, that is to say at the inflow opening 6 of the housing 1. The counter electrode 14 could, however, also be arranged quite differently, for which there will be further explanations later.

Das in Fig. 1 dargestellte, insoweit bevorzugte Ausführungsbeispiel zeigt, daß die Anode 10 und die Kathode 11 hier hintereinander, und zwar in bevorzugter Weise miteinander fluchtend, angeordnet sind. Die Strömungswege 12, 13 liegen also hier gewissermaßen flach nebeneinander und die Zuströmöffnung 6 für beide Strömungswege 12, 13 ist dementsprechend im wesentlichen langgestreckt-rechteckig. Das hat eine besonders gleichmäßige Strömung der Luft und eine dementsprechend besonders gleichmäßige und optimale Ionisierung zur Folge.The preferred embodiment shown in FIG. 1 shows that the anode 10 and the cathode 11 are arranged one behind the other, in a preferred manner in alignment with one another. The flow paths 12, 13 are here, as it were, flat next to one another and the inflow opening 6 for both flow paths 12, 13 is accordingly essentially elongated-rectangular. This results in a particularly even flow of air and, accordingly, a particularly even and optimal ionization.

Fig. 1 zeigt, daß die Anode 10 und die Kathode 11 hier in das aus Isolierstoff bestehende Gehäuse 1 eingesetzt sind. Sie sind darin im hier dargestellten Ausführungsbeispiel über Befestigungsschrauben 15 befestigt. Wäre das Gehäuse 1, was durchaus auch möglich wäre, insgesamt aus Metall, - dann könnte das Gehäuse 1 die Gegenelektrode bilden -, so müßten die Befestigungselemente der Anode 10 und der Kathode 11 aus Isolierstoff bestehen, um eine ausreichende Isolierung im Gehäuse 1 zu gewährleisten. Entsprechendes gilt für die Trennwand 5 des Gehäuses 1, die im in Fig. 1 dargestellten Ausführungsbeispiel gleichzeitig die Lagerung der freien Enden der Anode 10 und der Kathode 11 bildet.Fig. 1 shows that the anode 10 and the cathode 11 are inserted here in the housing 1 made of insulating material. In the exemplary embodiment shown here, they are fastened by means of fastening screws 15. If the housing 1, which would also be entirely possible, were made entirely of metal, then the housing 1 could form the counterelectrode, the fastening elements of the anode 10 and the cathode 11 would have to be made of insulating material in order to ensure adequate insulation in the housing 1 . The same applies to the partition 5 of the housing 1, which at the same time forms the mounting of the free ends of the anode 10 and the cathode 11 in the embodiment shown in FIG. 1.

Die Spannungszuführung der Anode 10 und der Kathode 11 könnte über die Befestigungsschrauben 15 erfolgen. Nun hat es sich aber gezeigt, daß das so erzeugte Feld zwischen der Anode 10 bzw. der Kathode 11 einerseits und der Gegenelektrode 14 andererseits zu homogen ist, der lonisationsvorgang kann so schlecht « gestartet » werden. Insoweit geht nun eine weitere, in sich selbständige und unabhängige Lehre der Erfindung dahin, daß die Spannungszuführung der Anode 10 und/oder der Kathode 11 über einen seitlich der Anode 10 bzw. der Kathode 11 in das Gehäuse 1 eintretenden, in einem bestimmten Abstand von der Gehäusewand an die Anode 10 bzw. die Kathode 11 angeschlossen, vorzugsweise zurück zur Gehäusewand auf die Anode 10 bzw. die Kathode 11 aufgewickelten Zuleitungsdraht 16 erfolgt. Durch diese Konstruktion wird an der Seite der Spannungszuführung eine durch die Größe, Form und Lage des Zuleitungsdrahtes 16 genau definierte Feldinhomogenität geschaffen, die den lonisationsbeginn erleichtert. Diese Lehre der Erfindung ist auch dann anwendbar, wenn die Vorrichtung zur lonisation nur einen Strömungsweg mit, wie an sich bekannt, hintereinander liegenden Anoden und Kathoden aufweist.The voltage supply of the anode 10 and the cathode 11 could take place via the fastening screws 15. However, it has now been shown that the field generated in this way between the anode 10 or the cathode 11 on the one hand and the counterelectrode 14 on the other hand is too homogeneous, and the ionization process can be “poorly started”. In this respect, another, independent and independent teaching of the invention is that the voltage supply of the anode 10 and / or the cathode 11 via a side of the anode 10 or the cathode 11 entering the housing 1 at a certain distance from the housing wall is connected to the anode 10 or the cathode 11, preferably back to the housing wall on the anode 10 or the cathode 11 wound lead wire 16. This construction creates a field inhomogeneity precisely defined by the size, shape and position of the lead wire 16 on the side of the voltage supply, which facilitates the start of ionization. This teaching of the invention can also be used when the device for ionization has only one flow path with, as is known per se, anodes and cathodes lying one behind the other.

Wie zuvor schon erläutert worden ist, ist im in Fig. 1 dargestellten Ausführungsbeispiel die Zuströmöffnung 6 und die Abströmöffnung 7 langgestreckt und etwa rechteckig ausgeführt. Nach einer weiteren, wiederum unabhängigen Lehre der Erfindung, die in Fig. 1 dargestellt ist, ist nun die Gegenelektrode 14 ein die Zuströmöffnung 6 (oder die Abströmöffnung 7) umgebender Rahmen aus elektrisch leitendem Material. Damit wird, insbesondere bei einer langgestreckten und etwa rechteckigen Ausführung der Zuströmöffnung 6 und wie in Fig. 1 nebeneinander liegenden Strömungswegen 12, 13 eine besonders homogene, gleichmäßig verteilte Feldstärke des elektrischen Feldes zwischen der Anode 10 bzw. der Kathode 11 einerseits und der Gegenelektrode 14 andererseits erzielt.As has already been explained above, in the exemplary embodiment shown in FIG. 1, the inflow opening 6 and the outflow opening 7 are elongated and approximately rectangular. According to a further, again independent teaching of the invention, which is shown in FIG. 1, the counter electrode 14 is now a frame made of electrically conductive material surrounding the inflow opening 6 (or the outflow opening 7). This results in a particularly homogeneous, uniformly distributed field strength of the electrical field between the anode 10 or the cathode 11 on the one hand and the counter electrode 14, in particular in the case of an elongated and approximately rectangular design of the inflow opening 6 and, as in FIG. 1, adjacent flow paths 12, 13 achieved on the other hand.

Fig. 2 zeigt ein Ausführungsbeispiel einer erfindungsgemäßen Vorrichtung, das insbesondere zum Ansatz an die Austrittsöffnung einer Lüftungsanlage bestimmt und geeignet ist, also beispielsweise in eine Gebäudewand 17 am Austritt eines Kanals einer Klimaanlage eingesetzt wird. Diese Vorrichtung wird insoweit nicht mehr erläutert, als sie mit der Vorrichtung aus Fig. 1 übereinstimmt. Dies wird durch gleiche Bezugszeichen angedeutet. Besonders gilt aber für diese Vorrichtung, daß die Anode 10 und die Kathode 11 hier nebeneinander, und zwar nach bevorzugter Lehre parallel zueinander, angeordnet sind. Die beiden parallelen Strömungswege 12 für die Anode 10 und 13 für die Kathode 11 liegen also hier nicht, wie in Fig. 1, flach, langgestreckt nebeneinander, sondern parallel nebeneinander bzw. übereinander. Das führt aber im Grundsatz nicht zu schlechteren Ergebnissen. Hier ist des weiteren die Gegenelektrode 14 eine die beiden Strömungswege 12, 13 trennende Trennwand im Gehäuse 1. Die Gegenelektrode 14 übernimmt also hier einerseits die elektrische Funktion, andererseits die mechanische Funktion der Trennwand 5 im Ausführungsbeispiel nach Fig. 1.Fig. 2 shows an embodiment of a device according to the invention, which is intended and suitable in particular for attachment to the outlet opening of a ventilation system, for example in a building wall 17 at the outlet of an air conditioning duct is used. This device is no longer explained insofar as it corresponds to the device from FIG. 1. This is indicated by the same reference numerals. However, it is particularly true for this device that the anode 10 and the cathode 11 are arranged side by side here, and in accordance with the preferred teaching, parallel to one another. The two parallel flow paths 12 for the anode 10 and 13 for the cathode 11 are not here, as in FIG. 1, flat, elongated next to one another, but parallel next to one another or one above the other. In principle, however, this does not lead to worse results. Here, furthermore, the counter electrode 14 is a partition wall in the housing 1 that separates the two flow paths 12, 13. The counter electrode 14 therefore takes on the electrical function on the one hand, and on the other hand the mechanical function of the partition wall 5 in the exemplary embodiment according to FIG. 1.

Zurück zu Fig. 1 gehend erkennt man, daß das hier dargestellte Ausführungsbeispiel eine von einer fremden Luftströmung unabhängige Vorrichtung zur Ionisation von gasförmigem Sauerstoff zeigt. Dazu ist hier, strichpunktiert angedeutet, daß an das Gehäuse 1 auf der Zuströmseite ein Gebläsegehäuse 18 angesetzt ist. Im hier dargestellten Ausführungsbeispiel und nach bevorzugter Lehre der Erfindung ist im Gebläsegehäuse 18 ein Tangential-Walzengebläse 19 angeordnet. Ein solches Tangential-Walzengebläse 19 korrespondiert in besonders zweckmäßiger Weise zu flach nebeneinander angeordneten Strömungswegen 12, 13 und einer langgestrecktrechteckigen Zuströmöffnung 6 im Gehäuse 1. Im übrigen sind aber auch andere Gebläsetypen üblicher Konstruktion hier verwendbar. Fig. 1 zeigt, daß das Gehäuse 1 der eigentlichen Vorrichtung zur Ionisation vom Gebläsegehäuse 18 nach vorn hin überfaßt wird, da die Höhe des Gebläsegehäuses 18 wegen der Konstruktion des Tangential-Walzengebläses 19 im hier dargestellten Ausführungsbeispiel etwas größer ist als die Höhe des Gehäuses 1. Das ist aber von lediglich konstruktiver und designerischer Bedeutung.Going back to FIG. 1, it can be seen that the exemplary embodiment shown here shows a device for ionizing gaseous oxygen that is independent of an external air flow. For this purpose, it is indicated here by dash-dotted lines that a blower housing 18 is attached to the housing 1 on the inflow side. In the exemplary embodiment shown here and according to the preferred teaching of the invention, a tangential roller blower 19 is arranged in the blower housing 18. Such a tangential roller blower 19 corresponds in a particularly expedient manner to flow paths 12, 13 arranged flat next to one another and an elongated rectangular inflow opening 6 in the housing 1. However, other blower types of conventional construction can also be used here. Fig. 1 shows that the housing 1 of the actual device for ionization from the fan housing 18 is covered towards the front, since the height of the fan housing 18 is slightly larger than the height of the housing 1 due to the construction of the tangential roller blower 19 in the exemplary embodiment shown here But this is only of constructive and design significance.

Das Gebläsegehäuse 18 im in Fig. 1 dargestellten Ausführungsbeispiel bietet nun eine besondere Möglichkeit, die Gegenelektrode 14 elegant zu integrieren. Dazu ist es nämlich möglich, daß der die Gegenelektrode 14 bildende Rahmen der die Zuströmöffnung 6 umgebende Rand des zumindest insoweit aus elektrisch leitendem Material bestehenden Gebläsegehäuses 18 ist. Besteht das Gebläsegehäuse 18, wie häufig vorgesehen, insgesamt aus Metall, so kann durch einfaches Erden des Gebläsegehäuses 18 vom an die Zuströmöffnung 6 angrenzenden Rand zwanglos die Funktion der Gegenelektrode 14 übemommen werden.The blower housing 18 in the exemplary embodiment shown in FIG. 1 now offers a special possibility of elegantly integrating the counter electrode 14. For this purpose, it is in fact possible that the frame forming the counter electrode 14 is the edge of the blower housing 18 which at least in this respect is made of electrically conductive material and surrounds the inflow opening 6. If, as is often provided, the blower housing 18 is made entirely of metal, the function of the counterelectrode 14 can be taken over by simply grounding the blower housing 18 from the edge adjoining the inflow opening 6.

Für gleichmäßige lonisationsergebnisse ist es zweckmäßig, wenn im Inneren des Gehäuses 1 ein statischer Überdruck besteht, vorzugsweise ein Überdruck von mindestens 10 mbar. Dies kann durch entsprechende Anordnung bzw. Ausbildung der Abströmöffnung 7 im Gehäuse 1 erreicht werden. Insbesondere empfiehlt es sich hier, die Abströmöffnung 7 mit einem in den Figuren nicht weiter dargestellten Staudruckeinsatz zu versehen, der die Form eines Gitters, Gewebes, Schwammes od. dgl. haben kann. Hier lassen sich unter Beachtung der vorliegenden Randbedingungen vielerlei verschiedene Materialien finden. Handelt es sich beim in den Figuren nicht dargestellten Staudruckeinsatz um ein Gewebe aus metallischem Material, beispielsweise ein Gitter, so empfiehlt es sich, daß die Abströmöffnung 7, insbesondere aber der Staudruckeinsatz selbst, auf Massepotential liegt. Diese Maßnahme ist zweckmäßig, um an der Abströmöffnung 7 bzw. im Staudruckeinsatz selbst keine Störpotentiale entstehen zu lassen.For uniform ionization results, it is expedient if there is a static excess pressure inside the housing 1, preferably an excess pressure of at least 10 mbar. This can be achieved by appropriate arrangement or design of the outflow opening 7 in the housing 1. In particular, it is recommended here to provide the outflow opening 7 with a dynamic pressure insert, which is not shown in the figures and which can have the form of a grid, fabric, sponge or the like. A variety of different materials can be found here, taking into account the existing boundary conditions. If the dynamic pressure insert, not shown in the figures, is a fabric made of metallic material, for example a grid, it is recommended that the outflow opening 7, but in particular the dynamic pressure insert itself, is at ground potential. This measure is expedient in order not to allow any interference potential to arise at the outflow opening 7 or in the dynamic pressure insert itself.

Fig. 3 zeigt nun eine ganze lonisationsanlage für eine besonders großflächige Luftaustrittsöffnung 20, wie sie beispielsweise für größere, klimatisierte Konferenzräume einsetzbar ist. Diese lonisationsanlage ist nun dadurch gekennzeichnet, daß mehrere Vorrichtungen zur Ionisation von gasförmigem Sauerstoff, insbesondere von Sauerstoff in Raumluft, insbesondere mehrere Vorrichtungen der zuvor erläuterten Art, nebeneinander, aber mit Abstand voneinander angeordnet sind. Jede dieser Vorrichtungen 21 kann eine vollständige Vorrichtung der zuvor erläuterten Art sein, also austrittsseitig einen Luftstrom mit positiver und negativer Ladung abgeben. Versuche haben aber gezeigt, daß es für eine solche lonisationsanlage insgesamt ausreicht, daß die Vorrichtungen 21 so konstruiert bzw. angeschlossen sind, daß der austretende Luftstrom jeweils abwechselnd mit positiven und negativen Ladungsträgern angereichert ist. Im Rahmen einer solchen lonisationsanlage könnten als Vorrichtungen 21 also durchaus auch jeweils aus der DE-A-34 11 335 bekannte Vorrichtungen dienen.3 now shows an entire ionization system for a particularly large-area air outlet opening 20, as can be used, for example, for larger, air-conditioned conference rooms. This ionization system is now characterized in that several devices for ionizing gaseous oxygen, in particular oxygen in ambient air, in particular several devices of the type explained above, are arranged next to one another but at a distance from one another. Each of these devices 21 can be a complete device of the type explained above, that is to say emit an air flow with positive and negative charge on the outlet side. However, tests have shown that it is sufficient for such an ionization system overall that the devices 21 are constructed or connected in such a way that the exiting air stream is alternately enriched with positive and negative charge carriers. In the context of such an ionization system, devices known from DE-A-34 11 335 could also serve as devices 21.

Claims (12)

1. An appliance for the ionization of gaseous oxygen, having a housing with an inflow aperture and an outflow aperture for the oxygen or for air, and with an anode and a cathode located in the housing, the anode and cathode being conductor electrodes tensioned transversely to the direction of flow, characterized in that two separate flow paths (12, 13) are formed in the housing (1) between the inflow aperture (6) and the outflow aperture (7), the anode (10) being placed in the first flow path (12) and the cathode (11) in the second flow path (13), and a counter-electrode (14) being associated with both flow paths (12, 13).
2. An appliance according to Claim 1, characterized in that the counter-electrode (14) is located at the beginning or at the end of the flow paths (12, 13).
3. An appliance according to Claim 2, characterized in that a common counter-electrode (14) preferably connected to earth potential is provided for both flow paths (12, 13).
4. An appliance according to one of Claims 1 to 3, characterized in that the anode (10) and the cathode (11) are placed next to one another, preferably in alignment with one another, or side by side, preferably parallel to one another.
5. An appliance according to one of Claims 1 to 4, characterized in that the voltage supply to anode (10) and/or to cathode (11) takes place via a lead-in wire (16) that enters the housing (1) at the side of the anode (10) or cathode (11), is connected to the anode (10) or the cathode (11) at a certain distance from the housing wall, is wound around the anode (10) or the cathode (11), and the end of which preferably extends back to the housing wall.
6. An appliance according to one of Claims 1 to 5, characterized in that the inflow aperture (6) and the outflow aperture (7) are constructed to be elongated and approximately rectangular.
7. An appliance according to one of Claims 1 to 6, characterized in that the counter-electrode (14) is a frame of electrically conducting material surrounding the inflow aperture (6) or the outflow aperture (7).
8. An appliance according to one of Claims 1 to 6, characterized in that the counter-electrode (14) is a separation wall separating the two flow paths (12, 13) in the housing (1).
9. An appliance according to one of Claims 1 to 8, characterized in that a blower housing (18), particularly one with a tangential roller blower (19) located inside it, is attached to housing (1) at the inflow side, and that preferably the blower housing (18), which at least to this extent consists of electrically conducting material, is the frame surrounding the edge of the inflow aperture (6) that forms the counter-electrode (14).
10. An appliance according to one of Claims 1 to 9, characterized in that the outflow aperture (7) is so arranged and constructed that a small excess pressure, preferably an excess pressure of at least 10 millibars, exists in housing (1), that for this purpose the outflow aperture (7) is preferably provided with a pressurizing insert and that preferably the outflow aperture (7) and particularly the pressurizing insert in the outflow aperture (7) is connected to earth potential.
11. An ionization installation for a large-area air outlet aperture, in which several appliances for the ionization of gaseous oxygen, particularly the oxygen in atmospheric air, with the features of the appliances according to one of Claims 1 to 10 are arranged side by side but with spacings between them.
12. An ionization installation according to Claim 11, characterized in that the appliances (21) are so constructed or connected together that the air outflows are alternately enriched with positive and negative charge carriers.
EP87104210A 1986-04-02 1987-03-21 Ionization device for gaseous oxygen Expired - Lifetime EP0239897B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87104210T ATE50891T1 (en) 1986-04-02 1987-03-21 DEVICE FOR THE IONIZATION OF GASEOUS OXYGEN.

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE8608913U DE8608913U1 (en) 1986-04-02 1986-04-02 Ionizing device
DE8608913U 1986-04-02
DE3614994 1986-05-02
DE3614994 1986-05-02
DE19873702337 DE3702337A1 (en) 1986-04-02 1987-01-27 Device for the ionisation of gaseous oxygen
DE3702337 1987-01-27

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EP0239897A1 EP0239897A1 (en) 1987-10-07
EP0239897B1 true EP0239897B1 (en) 1990-03-07

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EP (1) EP0239897B1 (en)
DE (1) DE3761867D1 (en)
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GB2406222B (en) * 2003-09-22 2007-03-21 Meech Static Eliminators Ltd Electrical ioniser
EP2596556B1 (en) * 2010-10-08 2015-04-01 Weyergans, Rudolf Method and arrangement for increasing the concentration of negative ions in a closed space

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US4794486A (en) 1988-12-27
ES2014004B3 (en) 1990-06-16
EP0239897A1 (en) 1987-10-07
DE3761867D1 (en) 1990-04-12
GR3000416T3 (en) 1991-06-28

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