WO2006035744A1 - 絶縁体被膜層担持電極を有する気体励起装置、及び気体励起方法 - Google Patents
絶縁体被膜層担持電極を有する気体励起装置、及び気体励起方法 Download PDFInfo
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- WO2006035744A1 WO2006035744A1 PCT/JP2005/017698 JP2005017698W WO2006035744A1 WO 2006035744 A1 WO2006035744 A1 WO 2006035744A1 JP 2005017698 W JP2005017698 W JP 2005017698W WO 2006035744 A1 WO2006035744 A1 WO 2006035744A1
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/2406—Generating plasma using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes
- H05H1/2418—Generating plasma using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes the electrodes being embedded in the dielectric
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/2406—Generating plasma using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/2406—Generating plasma using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes
- H05H1/2431—Generating plasma using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes using cylindrical electrodes, e.g. rotary drums
Definitions
- the present invention relates to a gas excitation device having an insulating film layer carrying electrode and a gas excitation method.
- the present invention relates to a gas excitation device having an insulating film layer-carrying electrode and a gas excitation method. According to the present invention, by replacing the protective electrode in the conventional gas excitation device and gas excitation method with the insulator coating layer-supporting electrode, the gas excitation efficiency is improved and the manufacturing cost and the running cost are reduced. can do.
- FIG. 25 is a schematic perspective view in which a part of the side wall of the housing 1 of the gas excitation device P is cut away.
- the gas excitation device P includes a substantially rectangular parallelepiped housing 1 having an inflow opening 2 for a gas to be processed G and an opening 3 for exhausting a processed gas C, and is disposed inside the housing 1. Includes a large number of cylindrical protective electrodes 6. As shown in the schematic cross-sectional view of FIG.
- the cylindrical protective electrode 6 includes a rod-shaped electrode 6X and a cylindrical sheath body 6Y surrounding the rod-shaped electrode 6X, and the cylindrical sheath body 6Y Insulator material strength also becomes. Further, the cylindrical protective electrode 6 is divided into two groups of electrode groups 6A and 6B, which are connected to the electric wires 9A and 9B, respectively, and the electric wires 9A and 9B are connected to the AC power source 9. In general, the electric wire 9B connected to the electrode group 6B of one series is grounded. As shown in FIG. 26, each protective electrode 6B, which is disposed on the outermost side inside the housing 1 and faces the inner wall of the housing 1, does not generate a discharge between the inner wall of the housing 1. It is preferable to connect to the grounded electric wire 9B. In principle, it is not necessary to ground the housing 1 itself or the electrode group 6B, but it is preferable to ground them for safety.
- FIG. 25 and FIG. 26 show a simplified configuration for the purpose of showing an electrode arrangement structure in a typical embodiment of a conventional gas excitation device, for example, the number of electrode groups is extremely reduced. It is shown. Actually, since it is necessary to arrange a large number of electrode groups in the gas excitation device, for example, as shown in FIG. A plurality of the block bodies Q are arranged in the gas excitation device.
- the electrode group block body Q shown in FIG. 27 includes a cylindrical protective electrode 6, a left side plate 8A, a right side plate 8B, a central support plate 8C, and lead wires 9A and 9B.
- the left side plate 8A and the right side plate 8B are held by penetrating through a through hole provided in a central support plate 8C disposed between the left side plate 8A and the right side plate 8B. It is held by inserting an end portion into a non-through hole provided on each surface of each.
- a deodorizing device and an air purifier using low-temperature non-equilibrium plasma generated by the gas excitation device are also known.
- a low-temperature plasma deodorization apparatus having a high-pressure discharge part that generates low-temperature plasma and a catalyst part that is disposed downstream of the high-pressure discharge part and filled with an oxidation promoting catalyst is known (Patent Document 3).
- Patent Document 3 a low-temperature plasma deodorization apparatus having a high-pressure discharge part that generates low-temperature plasma and a catalyst part that is disposed downstream of the high-pressure discharge part and filled with an oxidation promoting catalyst.
- radicals are generated by giving dissociation energy to the gas to be treated by high-pressure discharge. That is, the electrons released into the gas by the discharge collide with the gas molecules in the odor gas and activate the molecules.
- Some of the active molecules are dissociated into radicals, which may oxidize and decompose malodorous substances in odorous gas or generate ozone.
- the ozone generated by radicals is also considered to oxidize malodorous substances and contribute to the treatment of malodorous substances.
- the odor decomposition of odorous substances is performed by the energy of the discharge itself.
- Patent Document 1 Japanese Patent Laid-Open No. 9 199261
- Patent Document 2 U.S. Patent No. 5, 483, 117
- Patent Document 3 Japanese Patent Laid-Open No. 2001-293079
- the cylindrical protective electrode 6 used in the conventional gas excitation device P of the type shown in FIGS. 25 and 26 includes the rod-shaped electrode 6X and the cylinder surrounding the periphery thereof.
- a metal electrode rod is usually used as the rod-shaped electrode 6X, and the cylindrical sheath 6Y.
- a glass tube was used as the body 6Y. Since such a cylindrical protective electrode 6 is manufactured by inserting a metal electrode rod 6 mm into a glass sheath 6 mm, a gap exists between the glass sheath 6 mm and the metal electrode rod 6 X, The cylindrical sheath body 6 ⁇ surrounds the rod-shaped electrode 6 ⁇ ⁇ with a gap therebetween.
- the conventional protective electrode has a drawback in that a discharge occurs in the protective electrode and the metal electrode deteriorates severely. In addition, the production and assembly with a large number of parts took time, which caused high costs. Furthermore, since the conventional protective electrode exposes a glass tube having a gap inside, it was necessary to be careful not to break it when assembling the electrode group block body Q.
- the object of the present invention is to achieve the problem of improvement in gas excitation efficiency and at the same time solve the various drawbacks of the protective electrode. It is in.
- At least a pair of electrodes connected to an AC power source is provided in a housing having an inflow opening for a gas to be processed and an opening for exhausting a processed gas.
- a gas excitation device wherein the electrode is a combination of a protective electrode and a protective electrode, or a combination of a protective electrode and an exposed electrode, wherein at least one protective electrode is entirely on the surface of the core electrode and the core electrode. It can be solved by the gas excitation device described above, characterized by comprising an insulating coating layer supported so as to cover the surface.
- the insulator coating layer is a gas excitation device wherein the enamel coating layer, the ceramic coating layer, the glass coating layer, or the resin coating layer.
- the apparatus comprises a first electrode group composed of a plurality of protective electrodes, and a second electrode group composed of a plurality of protective electrodes or exposed electrode caps, A gas excitation device in which at least one of the protective electrode belonging to one electrode group and / or the protective electrode belonging to the second electrode group is a protective electrode carrying the insulator coating layer.
- the protective electrode is a gas excitation device in which all of the protective electrodes are protective electrodes carrying the insulator coating layer.
- a protective battery carrying the insulator coating layer is provided.
- the electrode core electrode is a gas excitation device having a columnar shape, a cylindrical shape, or a plate shape.
- the internal plate electrode is a gas excitation device that is a plate electrode, a concavo-convex plate electrode, or a porous plate electrode.
- the present invention has an opening for inflow of a gas to be processed and an opening for discharge of a processed gas, and includes at least a pair of electrodes, and the pair of electrodes is a combination of a protective electrode and a protective electrode.
- a method of exciting a gas to be processed by passing a gas to be processed through a housing that is a combination of a protective electrode and an exposed electrode, and applying an AC potential between the pair of electrodes,
- the present invention also relates to a gas excitation method characterized by comprising at least one protective electrode force core electrode and an insulating coating layer supported on the surface of the core electrode so as to cover the entire surface.
- a protective electrode is provided.
- the insulating coating layer (b) is formed on the metal electrode rod (a) because the insulating coating layer (b) is directly formed on the surface of the core electrode (a). There is no gap between them. Therefore, deterioration of the metal electrode due to ozone generated by internal discharge does not occur, and the life of the protective electrode is extended. Moreover, since ozone is not generated by internal discharge, gas excitation efficiency is also improved. Further, since there is no gap between the core electrode (a) and the insulating coating layer (b), the size of the protective electrode itself can be made smaller than before, and accordingly, the gas excitation device or the electrode group block body can be reduced. (See Fig. 27) Space saving is possible.
- the insulator coating layer (b) is formed by, for example, baking a glassy paste on the surface of the metal electrode to form a enamel coating layer, or spraying or dipping the metal compound melt on the electrode surface.
- a ceramic film, a glass film (for example, a glass plate), or a resin film, which has been formed in advance is applied onto the electrode surface with an adhesive to form an insulator coating layer. Can be formed Therefore, the complexity of manufacturing is eliminated and the strength is improved, so that cracking occurs, and the assembly work of the gas excitation device and the electrode group block body is facilitated.
- FIG. 1 (a) is a schematic cross-sectional view showing a basic configuration of an electrode of a conventional protective 'protective electrode type device.
- FIG. 1 (b) is a schematic cross-sectional view showing a basic configuration of an electrode of a protective device according to the present invention.
- FIG. 2 (a) is a schematic cross-sectional view showing a basic configuration of an electrode of a conventional protective / exposed electrode type device.
- FIG. 2 (b) is a schematic cross-sectional view showing the basic structure of the electrode of the protective 'exposed electrode type device of the present invention.
- FIG. 3 is a schematic perspective view showing a part of a side wall of a housing of the device of the present invention cut away.
- FIG. 4 is a schematic cross-sectional view of the device of the present invention shown in FIG.
- FIG. 5 is a schematic perspective view showing a part of the side wall of the housing of the device according to the present invention with a part cut away.
- FIG. 6 is a schematic cross-sectional view of the device of the present invention shown in FIG.
- FIG. 7 is a perspective view of a flat electrode that can be used in the present invention.
- FIG. 8 is a perspective view of another flat electrode that can be used in the present invention.
- FIG. 9 is a perspective view of an uneven plate electrode that can be used in the present invention.
- FIG. 10 is a perspective view of another uneven plate electrode that can be used in the present invention.
- FIG. 11 is a perspective view of still another uneven plate electrode that can be used in the present invention.
- FIG. 12 is a perspective view of still another uneven plate electrode that can be used in the present invention.
- FIG. 13 is a perspective view of a through-hole plate electrode that can be used in the present invention.
- FIG. 14 is a schematic cross-sectional view showing the basic configuration of the electrode of the device of the present invention shown in FIG.
- FIG. 15 is a schematic cross-sectional view showing the basic structure of the electrode of the device of the present invention shown in FIG.
- FIG. 16 is a schematic cross-sectional view showing a basic configuration of an electrode of a device according to another embodiment of the present invention.
- FIG. 17 is a schematic cross-sectional view showing the basic structure of the electrode of the device of the present invention according to still another embodiment.
- FIG. 18 is a schematic cross-sectional view showing the basic configuration of the electrode of the device of the present invention according to still another embodiment.
- FIG. 19 is a schematic cross-sectional view showing the basic structure of the electrode of the device of the present invention according to still another embodiment.
- FIG. 20 is a schematic perspective view of an exposed electrode having a rectangular parallelepiped creeping discharge preventing sheath for preventing creeping discharge.
- FIG. 21 is a schematic cross-sectional view showing the basic structure of an exposed electrode having a cylindrical creeping discharge preventing sheath for preventing creeping discharge.
- FIG. 22 is a schematic perspective view showing a part of the side wall of the housing of the device according to the present invention using a plate-like exposed electrode.
- FIG. 23 is a schematic cross-sectional view of the device of the present invention shown in FIG.
- FIG. 24 is a schematic perspective view of a plate-like exposed electrode having a creeping discharge preventing sheath for preventing creeping discharge at the periphery.
- FIG. 25 is a schematic perspective view showing a conventional gas processing apparatus with a part of the side wall of the housing cut away.
- FIG. 26 is a schematic cross-sectional view of the conventional gas processing apparatus shown in FIG.
- FIG. 27 is a schematic perspective view of an electrode group block body used in a conventional gas processing apparatus.
- the device according to the present invention has at least a pair of electrodes connected to an AC power supply, as in the conventional device. With a pair of electrodes
- the mode of the combination (1) is referred to as a protection'protective electrode type device
- the mode of the combination (2) is referred to as a protection'exposed electrode type device.
- Fig. 1 (a) is a schematic cross-sectional view showing a basic configuration of an electrode of a conventional protective 'protective electrode type device P1
- Fig. 1 (b) is a protection which is an embodiment of the present invention.
- the conventional apparatus PI shown in FIG. 1 (a) has a housing 1 having an inflow opening 2 for a gas to be processed G and an opening 3 for exhausting a processed gas C. Is provided with a pair of cylindrical protective electrodes 6A and 6B.
- the cylindrical protective electrodes 6A and 6B each include an inner rod-shaped electrode 6X and a cylindrical sheath body 6Y.
- the cylindrical sheath body 6Y is usually a glass tube and surrounds the inner rod-shaped electrode 6X with a gap 6Z therebetween.
- the cylindrical protective electrode 6A is connected to the electric wire 9A
- the cylindrical protective electrode 6B is connected to the electric wire 9B
- the electric wires 9A and 9B are connected to the AC power source 9, respectively.
- the wires and the nosing can be V, the gap must be grounded! /, It is not necessary to be! /, Either or both of them may be grounded! / ⁇ , as shown in Figure 1 (a) In the embodiment, the housing 1 and the electric wire 9B are both grounded.
- the internal rod-like electrode 6X is made of a conductive material (for example, aluminum or an alloy thereof, copper, a carbonaceous material, iron or the like). Alloy or tungsten) forces are also constructed.
- the shape of the internal rod-shaped electrode 16X is generally a rod-shaped body (for example, a cylindrical body or a columnar body), or a stranded wire electrode manufactured by twisting the conductor itself or the conductor.
- the cylindrical sheath 6Y is made of an insulating material (usually glass as described above), and the gap 6Z between the glass tube sheath 6Y and the internal rod electrode 6X is filled with air or a suitable protective gas. Or filled with liquid (eg oil or water).
- the protective 'protective electrode type device 10A of the present invention shown in FIG. 1 (b) has an inflow opening 102 for the gas G to be treated and an opening 103 for exhausting the treated gas C.
- the housing 101 is provided with a pair of cylindrical protective electrodes 106A and 106B.
- Each of the columnar protective electrodes 106A and 106B includes an inner rod-shaped electrode 106X and an insulating coating layer 106Y.
- the insulator coating layer 106Y is supported on the surface of the inner rod electrode 106X so as to cover the entire surface. Therefore, there is no gap between the inner rod electrode 106X and the insulating coating layer 106Y.
- the gas to be treated is in contact with the insulating coating layer 106Y and is not in contact with the internal rod-like electrode 106X.
- the columnar protective electrode 106A is connected to the electric wire 109A
- the columnar protective electrode 106B is connected to the electric wire 109B
- the electric wires 109A and 109B are connected to the AC power source 109, respectively.
- both the wire and the nosing need not be grounded, in the embodiment shown in FIG. 1 (b), one or both of them may be grounded. Are both grounded.
- the combination of the pair of protective electrodes is a pair of cylindrical protective electrodes that carry the insulating coating layer in a close contact state as shown in FIG. 1 (b).
- Fig. 1 (b) one is a cylindrical protective electrode that supports the insulator coating layer in close contact, and the other is as shown in Fig. 1 (a).
- it may be a cylindrical protective electrode having a void inside.
- FIG. 2 (a) is a schematic cross-sectional view showing a basic configuration of an electrode of a conventional protection / exposed electrode type device P2
- FIG. 2 (b) is an embodiment of the present invention.
- FIG. 5 is a schematic cross-sectional view showing a basic configuration of electrodes of the protection / exposed electrode type device 10B.
- the conventional apparatus P2 shown in FIG. 2 (a) has a housing 1 having an inflow opening 2 for the gas to be treated G and an opening 3 for the discharge of the treated gas C. Is provided with a cylindrical protective electrode 6A and a cylindrical exposed electrode 7.
- the cylindrical protective electrode 6A includes an inner rod-shaped electrode 6X and a cylindrical sheath body 6Y, similarly to the cylindrical protective electrode 6A of the conventional apparatus P1 shown in FIG. 1 (a).
- the cylindrical sheath 6Y is usually a glass tube, and surrounds the inner rod-shaped electrode 6X with a gap 6Z therebetween.
- the cylindrical protective electrode 6A is connected to the electric wire 9A
- the cylindrical exposed electrode 7 is connected to the electric wire 9B
- the electric wires 9A and 9B are connected to the AC power source 9, respectively.
- the electric wire and the nosing need not be grounded, but one or both of them may be grounded as shown in Fig. 2 (a).
- the housing 1 and the electric wire 9B are both grounded.
- the exposed electrode may be cylindrical.
- the cylindrical exposed electrode corresponds to a form in which the cylindrical sheath body in the cylindrical protective electrode is removed and the internal rod-shaped electrode is exposed as it is.
- the cylindrical exposed electrode can be made of any conductive material, for example, aluminum or its alloy, copper, carbonaceous material, iron or its alloy. Or tungsten.
- the cylindrical exposed electrode (or columnar exposed electrode) has a corrosion resistance because the electrode surface is in direct contact with the gas to be treated, and a metal that is easy to maintain such as a cleaning operation or a replacement operation.
- stainless steel for example, SUS.
- the shape of the cylindrical exposed electrode is not particularly limited, but is a rod-shaped body (for example, a cylindrical body or a columnar body, in particular, a cylindrical body or a columnar body). ) Or a stranded wire electrode produced by twisting the wire itself or the wire.
- the protection 'exposed electrode type device 10B of the present invention shown in FIG. 2 (b) includes an inflow opening 102 for the gas to be processed G and an exhaust opening 103 for the processed gas C. It has a nosing 101 provided with a columnar protective electrode 106A and a cylindrical exposed electrode 107B.
- the cylindrical protective electrode 106A includes an inner rod-shaped electrode 106X and an insulating coating layer 106Y.
- the insulator coating layer 106Y is supported in a close contact state covering the entire surface of the inner rod electrode 106X. Therefore, there is no gap between the inner rod electrode 106X and the insulating coating layer 106Y.
- the gas to be treated is in contact with the insulating coating layer 106Y and is not in contact with the internal rod electrode 106X.
- the cylindrical exposed electrode 107B like the cylindrical exposed electrode 7 of the conventional apparatus P2 shown in FIG. 2 (a), can also have a columnar shape. This corresponds to a form in which the cylindrical sheath body in the cylindrical protective electrode is removed, and the internal rod electrode is exposed as it is.
- the cylindrical protective electrode 106A is connected to the electric wire 109A
- the cylindrical exposed electrode 107B is connected to the electric wire 109B
- the electric wires 109A and 109B are connected to the AC power source 109, respectively.
- both the electric wire and the nosing need not be grounded, but one or both of them may be grounded.
- the housing 101 and the electric wire 109B are both grounded. The It is.
- the gas to be processed G flows from the inflow opening 102 of the gas processing apparatus according to the present invention shown in FIGS. 1 (b) and 2 (b), the gas to be processed G is divided into a cylindrical protective electrode and a cylindrical shape. After passing between the protective electrode (Fig. L (b)) or between the columnar protective electrode and the cylindrical exposed electrode (Fig. 2 (b)), it is finally discharged from the discharge opening 103. . In addition, if a voltage is applied between the pair of cylindrical protective electrodes 106A and 106B [Fig. L (b)] or between the cylindrical protective electrode 106A and the cylindrical exposed electrode 107, the gap between the electrodes Discharge occurs and gas molecules are excited to generate radicals.
- radicals malodorous substances in the gas to be treated are oxidatively decomposed or ozone is generated, so that the gas to be treated is oxidized.
- the gas to be treated is discharged from the discharge opening together with the radicals and ozone thus generated, and sent to a catalyst part (not shown) filled with an oxidation promoting catalyst, so that the radical, ozone and the gas to be treated are discharged. It is possible to continue the gas treatment by further proceeding with the reaction.
- FIG. 1 (b) and FIG. 2 (b) schematically show the electrode configuration of the gas treatment device of the present invention for convenience of explanation, and only two electrodes (only a pair of electrodes) are shown.
- a first electrode group composed of a plurality of electrodes and a second electrode group composed of a plurality of electrodes are arranged, Gas can be treated by applying a voltage between them.
- at least one of the protective electrode belonging to the first electrode group and / or the protective electrode belonging to the second electrode group protects the insulator coating layer. Any electrode may be used, but it is preferable that all of the protective electrodes are protective electrodes carrying the insulator coating layer.
- the insulator coating layer carried on the surface of the core electrode is, for example, a enamel coating layer, a ceramic coating layer, a glass coating layer, or a resin coating layer.
- the enamel coating layer can be formed by baking a glassy paste on the surface of the metal core electrode by a known method.
- the metal material capable of forming the enamel film layer include aluminum, iron, steel, and copper.
- the ceramic coating layer is formed by a known method using a core electrode (for example, a metal or carbonaceous core electrode). It can be formed by spraying a molten metal compound on the surface and cooling it, or by dipping a core electrode (for example, metal or carbonaceous core electrode) on the molten metal compound and cooling.
- a core electrode for example, a metal or carbonaceous core electrode
- the material used for the ceramic coating layer is not particularly limited as long as it is an insulating metal compound. For example, alumina, zirconia, titania, magnesia
- the glass coating layer is formed by spraying molten glass on the surface of the core electrode (for example, metal or carbonaceous core electrode) and cooling it, or melting the core electrode (for example, metal or carbonaceous core electrode). It can be formed by dipping into glass and cooling.
- the material used for the glass coating layer is not particularly limited, and can be, for example, borosilicate glass.
- the resin coating layer can also be formed on the surface of the core electrode (for example, a metal or carbonaceous core electrode) by a known method.
- a molten synthetic resin is applied to the surface of the core electrode. It can be formed by thermal spraying, extrusion molding, injection molding, dating, electrostatic coating, or fluid immersion.
- the material used for the resin coating layer is not particularly limited as long as it is an insulating synthetic resin.
- thermosetting resin for example, urethane resin, phenol resin, diallyl phthalate resin, epoxy resin) Or silicone resin
- thermoplastic resin eg, polystyrene, polyethylene, polypropylene, polysulfone resin, polysulfone resin
- the thickness of the insulating coating layer carried on the surface of the core electrode is not particularly limited as long as it can cause a discharge between the electrodes and generate a radical by exciting the gas molecules. However, it is, for example, 0.1 to 5 mm, preferably 0.2 to 1 mm. In the range of practical voltage applied for the purpose of exciting the gas, when the layer thickness of the insulator coating layer becomes thinner than 0.1 mm, dielectric breakdown of the insulator coating layer is likely to occur, When the layer thickness is greater than mm, it is difficult to perform silent discharge in the gas excitation device.
- the conventional gas excitation device of the type shown in FIGS. 25 and 26 is generally manufactured by providing a large number of cylindrical electrodes in the housing 1 as described above. Each of these cylindrical The work of fixing the poles to the housing one by one was extremely complicated and caused an increase in manufacturing cost.
- a method of installing the electrode group block body in the shape of an electrode group block body including a certain number of cylindrical electrodes in a block form is also used. In itself, it is the work of fixing each cylindrical electrode to the side plate one by one, and the effect of cost reduction is limited.
- a gas excitation device including a first electrode group composed of a plurality of cylindrical or columnar electrodes and a second electrode group composed of a plurality of cylindrical or columnar electrodes.
- a plurality of cylindrical or columnar electrodes belonging to the first electrode group ! or a plurality of cylindrical or columnar electrodes belonging to the second electrode group can be replaced with one plate electrode. Therefore, it can be solved.
- the present invention relates to a gas excitation device including a first electrode group and a second electrode group each composed of a plurality of cylindrical or columnar electrodes, and belongs to the first electrode group and the Z or second electrode group.
- a plurality of cylindrical or columnar electrodes, The present invention can also be effectively applied to an embodiment in which one plate electrode is replaced.
- FIG. 3 is a schematic perspective view showing a part of the side wall of the housing 11 of the device 10 of the present invention having a configuration in which a plurality of cylindrical or columnar electrodes are replaced with one plate electrode.
- FIG. 4 is a schematic cross-sectional view thereof. 3 and 4 (the present invention), and FIG. 25 and FIG. 26 (the prior art), it is clear that the device 10 of the present invention has the first configuration of the conventional device P (FIGS. 25 and 26).
- Each electrode group 6L has a structure in which a plurality of cylindrical protective electrode groups in each row are replaced with one plate-shaped protective electrode 14B.
- the first plate-like protective electrode 14B force is disposed in a direction parallel to the flow direction of the gas to be processed G at a position (one end portion of the electrode group) facing the inner wall of the housing 11. (Thus, it is arranged parallel to the inner wall of the housing 11).
- the first row of the second electrode group in which the cylindrical protective electrodes 16A constitute one group in a row is arranged in a direction parallel to the first plate-like protective electrode 14B.
- the following plate-like protective electrodes 14B and the second row or lower cylindrical protective electrode groups are alternately arranged in parallel and are in contact with the other inner wall of the housing 11 (the other end of the electrode group). Part) is provided with a plate-like protective electrode 14B.
- the plate-like protective electrode 14B includes an inner plate-like electrode 14X and an insulating coating layer 14Y.
- the insulator coating layer 14Y is supported on the surface of the internal plate electrode 14X so as to cover the entire surface of the internal plate electrode 14X. Therefore, there is no gap between the internal plate electrode 14X and the insulating coating layer 14Y.
- the gas to be treated is in contact with the insulating coating layer 14Y and not the inner plate electrode 14X.
- Each cylindrical protective electrode 16A is connected to the electric wire 19A
- each plate-like protective electrode 14B is connected to the electric wire 19B
- the electric wires 19A and 19B are connected to the AC power source 19. Therefore, a high voltage is applied between the cylindrical protective electrode 16A and the plate-shaped protective electrode 14B.
- both the electric wire and the nosing need not be grounded, but in the embodiment shown in FIGS. 3 and 4 where one or both of them may be grounded, both the housing 11 and the electric wire 19B are Grounded.
- the plate-like protective electrode 14B is arranged along the flow direction of the gas G to be processed, as shown in FIG.
- the force in the vicinity of the end of the inflow opening 12 in the housing 11 can be constituted by a single plate-like protective electrode that continues to the vicinity of the end of the discharge opening 13.
- one continuous plate-like protective electrode described above is divided into a plurality of pieces along the flow direction of the gas to be treated G, that is, two or more plate-like protective electrodes are treated. It can also be arranged in a line along the gas G flow direction.
- each of the plate-like protective electrodes has a function corresponding to a plurality of conventional cylindrical protective electrodes.
- the row group force of the electrode group 6L is configured to include a large number of cylindrical protective electrodes 6B.
- the cost was high.
- the apparatus 10 of the present invention shown in FIGS. 3 and 4 includes a single plate-like protective electrode 14B instead of a large number of cylindrical protective electrodes, so that manufacturing costs and maintenance costs are greatly reduced. Is done.
- a conventional protective electrode including a glass sheath 16Y and a metal electrode rod 16X and having an internal space 16Z is used.
- the cylindrical protective electrode shown in FIGS. 1 (b) and 2 (b) that is, the inner rod-shaped electrode 6X, and its It is also possible to use a columnar protective electrode comprising an insulating coating layer 6Y that surrounds and surrounds the inner rod electrode 6X in close contact with the inner rod electrode 6X.
- FIG. 5 is a schematic perspective view showing a part of the side wall of the housing 21 of the present invention device 20 having a configuration in which all of the cylindrical or columnar electrodes are replaced with plate electrodes
- Fig. 6 is a schematic cross-sectional view thereof.
- the device 20 of the present invention is the first of the conventional device P (FIGS. 25 and 26).
- the plurality of cylindrical protective electrode groups in each row of the electrode group 6L are replaced with one plate-like protective electrode 24B, and the second electrode group 6H of the conventional device P (Figs. 25 and 26)
- Each of the plurality of cylindrical protective electrode groups has a structure in which one plate-like protective electrode 24A is replaced. That is, in this embodiment, since all the electrode groups are plate-like protective electrodes, the manufacturing cost and the maintenance cost are further greatly reduced.
- the plate-like protective electrodes 24A and 24B are insulated from the inner plate-like electrode 24X, respectively.
- the insulating coating layer 24Y is supported on the surface of the internal plate electrode 24X so as to cover the entire surface of the inner coating electrode 24X. Therefore, there is no gap between the inner plate electrode 24X and the insulating coating layer 24Y.
- the gas to be treated is in contact with the insulating coating layer 24 Y and is not in contact with the internal plate electrode 24X.
- the plate-like protective electrodes 24A and 24B are arranged along the flow direction of the gas to be treated G, and the force near the end of the inflow opening 22 in the housing 21 is not limited to the end of the discharge opening 23. It can be composed of a single plate-like protective electrode that continues to the vicinity. Alternatively, it may be composed of two or more plate-like protective electrodes.
- the shape of the internal plate electrode is not particularly limited as long as it is a plate shape capable of stable discharge. Specifically, it can be, for example, a smooth plate electrode having a smooth surface, an uneven plate electrode having an uneven structure on the surface, or a through hole plate electrode having a through hole.
- the smooth plate electrode include a flat plate electrode 310 having a smooth flat surface 310a as shown in FIG. 7, or a flat plate electrode 320 having a curved surface 320a as shown in FIG.
- the smooth curved surface includes not only a smooth convex curved surface as shown in FIG. 8, but also a smooth concave curved surface.
- the concavo-convex plate electrode having a concavo-convex structure on the surface for example, as shown in FIG. 9, a concavo-convex plate shape in which a large number of conical protrusions 331 are arranged in a dot shape on a flat surface 330a.
- An electrode 330 may be mentioned.
- the shape of the protrusion is not limited to a conical shape, and may be a hemispherical shape or a cubic shape.
- FIG. 10 there can be mentioned a concavo-convex plate electrode 340 having a large number of cuboidal concave portions 341 in the form of dots on a plane 340a.
- the shape of the concave portion is not limited to a cubic shape, and may be a conical shape or a hemispherical shape.
- concavo-convex plate electrode 350 having a large number of strip grooves 350a and strip projections 350b provided in parallel.
- the belt-like grooves and belt-like projections may have a number of curved shapes provided in parallel only on a straight line.
- a corrugated surface is formed by a belt-like groove 360a having a substantially semicircular cross section and a belt-like protrusion 360b having a substantially semicircular cross section.
- An uneven plate electrode 360 can be mentioned.
- One surface of the internal plate electrode is a smooth plate, and the other surface is an uneven plate. It can also be in the form.
- the inner plate electrode may have a smooth plate shape or an uneven plate shape on both sides. In this case, the smooth plate shape and the uneven plate shape on each surface may be the same or different.
- the through-hole plate-like electrode for example, as shown in FIG. 13, there can be mentioned a porous plate-like electrode 370 formed by punching a large number of holes 370a in a plate made of a conductive material. Further, as will be described later, the through-hole plate electrode may be a mesh electrode composed of thin conductive material fibers, for example.
- An insulator coating layer (for example, a boron coating layer, a ceramic coating layer, a glass coating layer, or a resin coating layer) carried on the surface of each of the various internal plate-like electrodes is also the above-mentioned circle. Similarly to the insulator coating layer carried on the surface of the columnar core electrode, it can be formed on the surface of the various internal plate electrodes by a known method.
- an insulator coating layer for example, a ceramic coating layer, a glass coating layer (for example, a glass plate), or a resin coating layer (for example, a resin film) carried on the surface of the internal plate electrode is used.
- the forming method is performed after a ceramic coating plate, a glass coating plate, or a resin coating plate is formed in advance.
- the insulating coating layer is carried by adhering to the surface of the internal plate electrode using an adhesive.
- both electrodes are in close contact with the inner plate electrode 24X, covering the entire surface thereof, as shown in FIGS.
- a combination comprising a plate-like protective electrode (adhesive plate-like protective electrode) composed of the supported insulating coating layer 24Y and having no voids therebetween is preferable.
- the pair of electrodes one electrode is the contact-type plate-like protective electrode, and the other electrode is an insulating sheath (in particular, a glass plate or a synthetic resin plate).
- a plate-like protective electrode space-type plate-like protective electrode having a gap between the outer insulating sheath and the inner plate-like electrode. It can also be a combination.
- One of the pair of electrodes is a plate-shaped protective electrode, and the other is a columnar protective electrode (ie, the inner rod-shaped electrode 6X and the periphery of the inner rod-shaped electrode 6X are connected to the inner rod-shaped electrode 6X.
- Cylindrical protective electrode consisting of an insulating coating layer 6 Y that closely surrounds
- the plate-like protective electrode the contact-type plate-like protective electrode or the gap-type plate-like protective electrode can be used as the plate-like protective electrode.
- the shape of the internal plate-like electrode of the gap-type plate-like protective electrode is not particularly limited as long as it is a plate shape capable of stable discharge.
- It can be a smooth plate electrode having a smooth surface, an uneven plate electrode having an uneven structure on the surface, or a through hole plate electrode having a through hole.
- a concavo-convex plate electrode having a concavo-convex structure on the surface internal discharge occurs in the gap between the external insulating sheath and the internal plate electrode, and the life of the internal electrode It is preferable to use a smooth plate-like electrode because the gas excitation efficiency may decrease or the gas excitation efficiency may decrease.
- the layer thickness of the insulating coating layer carried on the surface of the internal plate electrode is not particularly limited as long as it can generate a radical by generating a discharge between the electrodes and exciting gas molecules. Although not, for example, 0.1 to 5 mm, preferably 0.2 to Lmm.
- the thickness of the insulating coating layer is less than 0.1 mm, the dielectric breakdown of the insulating coating layer is likely to occur.
- the layer thickness is thicker than 5 mm, it is difficult to perform silent discharge in the gas excitation device.
- the gas excitation device of the present invention including the plate-like electrode described with reference to Figs. 3 to 6 has a plurality of cylindrical or circular shapes belonging to the first electrode group and the Z or second electrode group.
- the columnar electrode is replaced with one plate electrode, and the first electrode group and the second electrode group are
- the gas excitation device of the present invention includes a mode in which the plate electrode is a protective electrode and a mode in which the plate electrode is an exposed electrode.
- FIG. 14 is a schematic cross-sectional view showing the basic configuration of the electrode in the embodiment shown in FIG. 3 and FIG. 4, and the protective / protective electrode type device 10 of the present invention shown in FIG.
- a housing having an opening 12 for the gas to be treated G and an opening 13 for the discharge of the treated gas C 11 is provided with a cylindrical protective electrode 16A and a plate-shaped protective electrode 14B.
- One protective electrode, the plate-like protective electrode 14B is composed of an inner plate-like electrode 14X and an insulator coating layer 14Y.
- the insulator coating layer 14Y is entirely formed on the surface of the inner plate-like electrode 14X. It covers the surface and is carried in close contact. There is no gap between the internal plate electrode 14X and the insulating coating layer 14Y.
- the cylindrical protective electrode 16A which is the other protective electrode, has a gap portion 16Z between the inner rod-shaped electrode 16X and the cylindrical sheath body 16Y.
- the cylindrical protective electrode 16A is connected to the electric wire 19A
- the plate-like protective electrode 14B is connected to the electric wire 19B
- the electric wires 19A and 19B are connected to the AC power source 19.
- the electric wire and the nosing may or may not be grounded together.
- the cylindrical protective electrode 16A and the plate-shaped protective electrode 14B are arranged at a position facing and in contact with the housing 11, as shown in the embodiment shown in FIG. 14, it occurs between the electrodes 16A and 14B.
- a discharge may occur between the housing 11 and one or both of the electrodes 16A and 14B.
- the housing 11 originally has a function of fixing electrodes and holding other electrode group block bodies Q (FIG. 27) in the gas excitation device, and the above-described deterioration is not desirable. Therefore, it is desirable to prevent discharge between the housing 11 and the electrodes 16A and 14B for safety.
- the purpose of grounding (grounding) the electrode group (outer electrode) arranged at a position facing the inner wall of the housing 11 and the housing 11 is the housing 11 and the cylindrical protective electrode 16A or plate. This is for the purpose of preventing electric discharge generated between the protective electrode 14B.
- FIG. 15 is a schematic cross-sectional view showing the basic configuration of the electrode in the embodiment shown in FIG. 5 and FIG. 6, and the protection / protection electrode type device 20 of the present invention shown in FIG.
- the housing 21 has a nozzle 21 having an inflow opening 22 for the gas to be treated G and an opening 23 for the discharge of the treated gas C, and the housing 21 has plate-like protective electrodes 24A, 24B. It has.
- the plate-like protective electrodes 24A and 24B are composed of an inner plate-like electrode 24X and an insulating coating layer 24Y.
- the insulating coating layer 24Y covers the entire surface of the inner plate-like electrode 24X. To be carried in close contact. There is no gap between the internal plate electrode 24X and the insulating coating layer 24Y.
- the plate protection electrode 24A is connected to the wire 29A
- the plate protection electrode 24B is connected to the wire 29B
- the wires 29A and 29B are connected to the AC power source 29.
- the plate protection electrode 24A and the plate protection electrode A high voltage is applied to 24B.
- the electric wire and housing may or may not be grounded together. In the device 20 of the present invention shown in FIG. 15, the discharge between the housing 21 and the plate-like protective electrodes 24A and 24B can be prevented by the same method as described above.
- one of the plate-like protective electrode 24A or the plate-like protective electrode 24B can be a contact-type plate-like protective electrode, and the other can be a gap-type plate-like protective electrode. Further, when the plate-like protective electrode 24A or the plate-like protective electrode 24B is composed of a plurality of plate-like protective electrodes, a part of them can be used as a gap-type plate-like protective electrode.
- FIG. 16 is a schematic cross-sectional view showing the basic configuration of the electrode in the protection / protection electrode type apparatus according to still another embodiment of the present invention.
- FIG. 16 shows the protection 'protection electrode type apparatus 30 of the present invention shown in FIG.
- a cylindrical protective electrode 36A and a plate-like protective electrode are provided inside the housing 31, a cylindrical protective electrode 36A and a plate-like protective electrode are provided.
- a protective electrode 34B is provided.
- the columnar protective electrode 36A includes an inner rod-shaped electrode 36X and an insulator coating layer 36Y.
- the insulator coating layer 36Y is supported on the surface of the internal rod electrode 36X so as to cover the entire surface. Therefore, there is no gap between the inner rod-like electrode 36X and the insulating coating layer 36Y.
- the plate-like protective electrode 34B includes an inner plate-like electrode 34X and an insulator coating layer 34Y.
- the insulator coating layer 34Y is formed on the entire surface of the inner plate-like electrode 34X. It is carried in close contact. There is no gap between the internal plate electrode 34X and the insulating coating layer 34Y.
- the cylindrical protective electrode 36A is connected to the electric wire 39A
- the plate-like protective electrode 34B is connected to the electric wire 39B
- the electric wires 39A and 39B are connected to the AC power source 39.
- the cylindrical protective electrode 36A and the plate-like protective electrode 34B A high voltage is applied between the two.
- cables and cables The uzings may or may not be grounded together.
- the discharge of the housing 31 and the columnar protective electrode 36A or the plate-shaped protective electrode 34B can be prevented by the same method as described above.
- the plate-like protective electrode 34B can be a contact-type plate-like protective electrode or a gap-type plate-like protective electrode. Further, when the plate-like protective electrode 34B is composed of a plurality of plate-like protective electrodes, a part of them can be used as a gap-type plate-like protective electrode.
- FIG. 17 is a schematic cross-sectional view showing the basic configuration of the electrode in one embodiment of the protection'exposed electrode type apparatus of the present invention.
- the protection / exposed electrode type apparatus 40 of the present invention shown in FIG. The housing 41 has a housing 41 having an inflow opening 42 for the gas to be treated G and an opening 43 for the discharge of the treated gas C. Inside the housing 41, a cylindrical protective electrode 46A and a plate-like electrode are provided. It has an exposed electrode 45B.
- the cylindrical protective electrode 46A includes an inner rod-shaped electrode 46X and an insulating coating layer 46Y.
- the insulator coating layer 46Y is supported on the surface of the internal rod-shaped electrode 46X so as to cover the entire surface. Therefore, there is no gap between the inner rod electrode 46X and the insulator film layer 46Y.
- the plate-like exposed electrode 45B corresponds to a state in which the insulating coating layer is removed from the plate-like protective electrode and the inner plate-like electrode is exposed, and as long as the plate-like exposed electrode 45B has a plate shape capable of stable discharge, It is not particularly limited. Specifically, a smooth plate-like electrode having a smooth surface, a concavo-convex plate-like electrode having a concavo-convex structure on the surface, or a through-hole plate-like electrode having a through-hole is used. For example, aluminum or an alloy thereof, copper, a carbonaceous material, iron or an alloy thereof, or tungsten can be used. Since the exposed electrode is in direct contact with the gas to be treated, a metal having corrosion resistance and easy maintenance such as a cleaning operation or a replacement operation, for example, stainless steel (for example, SUS) is used. Is preferred.
- the cylindrical protective electrode 46A is connected to the electric wire 49A
- the plate-like exposed electrode 45B is connected to the electric wire 49B
- the electric wires 49A and 49B are connected to the AC power source 49
- the cylindrical protective electrode 46A and the plate-like electrode A high voltage is applied between the exposed electrode 45B.
- both electric wire and nosing It may or may not be grounded.
- the discharge between the housing 41 and the columnar protective electrode 46A or the plate-like exposed electrode 45B can be prevented by the same method as described above.
- both end portions of the plate-like exposed electrode 45B are generally held on the same wall surface of the housing 41 as the both end portions of the cylindrical protective electrode 46A. If the distance from the protective electrode 46A is narrow, creeping discharge may occur on the holding wall surface of the housing 41.
- a sheath body 60Z made of an insulating material is provided at both ends of the plate-like exposed electrode 5, and the sheath body 60Z is provided.
- the plate-like exposed electrode 5 is fixed to a housing (not shown), and the distance over which creeping discharge is possible between the exposed end 5A of the plate-like exposed electrode 5 and the adjacent cylindrical protective electrode is substantially extended. A method can be mentioned.
- FIG. 18 is a schematic cross-sectional view showing the basic configuration of the electrode in another embodiment of the protection'exposed electrode type apparatus of the present invention, and the protection / exposed electrode type of the present invention shown in FIG.
- the apparatus 50 includes a housing 51 having an inflow opening 52 for the gas to be processed G and an opening 53 for discharging the processed gas C. Inside the housing 51, a plate-like protective electrode 54A, A plate-shaped exposed electrode 55B is provided inside the housing 51.
- the plate-like protective electrode 54A comprises an inner plate-like electrode 54X and an insulator coating layer 54Y.
- the insulator coating layer 54Y covers the entire surface of the inner plate-like electrode 54X and is in close contact with it. It is supported by.
- the plate-like exposed electrode 55B is a plate-like exposed electrode similar to the plate-like exposed electrode 45B shown in FIG.
- the plate-like protective electrode 54A is connected to the electric wire 59A
- the plate-like exposed electrode 55B is connected to the electric wire 59B
- the wires 59A and 59B are connected to the AC power source 59.
- the plate-like protective electrode 54A and the plate-like exposed electrode A high voltage is applied to 55B.
- the electric wire and the nosing may or may not be grounded together.
- the discharge between the housing 51 and the plate-like protective electrode 54A or the plate-like exposed electrode 55B can be prevented by the same method as described above, and on the holding wall surface of the housing 51. Creeping discharge can also be prevented by the same method as described above.
- FIG. 19 is a schematic cross-sectional view showing the basic configuration of an electrode in still another embodiment of the protection / exposed electrode type device of the present invention, and shows the protection / exposed electrode type device 60 of the present invention shown in FIG. Is
- the housing 61 is provided with an opening 62 for inflow of the gas G to be processed and an opening 63 for discharge of the gas C to be processed, and the housing 61 has a plate-like protective electrode 64A and a cylinder. Or cylindrical exposed electrode 67B.
- the plate-like protective electrode 64A is composed of an inner plate-like electrode 64X and an insulator coating layer 64Y.
- the insulator coating layer 64Y covers the entire surface of the inner plate-like electrode 64X and is in close contact therewith. It is carried in a state. There is no gap between the internal plate electrode 64X and the insulating coating layer 64Y!
- the cylindrical or columnar exposed electrode corresponds to a form in which the cylindrical sheath is removed from the cylindrical protective electrode and the internal rod-shaped electrode is exposed as it is. That is, the cylindrical or columnar exposed electrode can be made of any conductive material, for example, aluminum or an alloy thereof, copper, a carbonaceous material, iron or an alloy thereof, or tungsten. it can. In addition, since the cylindrical or columnar exposed electrode is also in direct contact with the gas to be processed, it has corrosion resistance and is easy to maintain such as cleaning operation and replacement operation, for example, stainless steel (for example, SUS) is preferred.
- stainless steel for example, SUS
- the shape of the cylindrical or columnar exposed electrode is not particularly limited, but a rod-shaped body (for example, a cylindrical body or a columnar body, particularly a cylindrical body or a columnar body), or It can also be a stranded wire electrode produced by twisting the conductor itself or the conductor.
- a rod-shaped body for example, a cylindrical body or a columnar body, particularly a cylindrical body or a columnar body
- It can also be a stranded wire electrode produced by twisting the conductor itself or the conductor.
- the plate-like protective electrode 64A is connected to the electric wire 69A
- the cylindrical or columnar exposed electrode 67B is connected to the electric wire 69B
- the electric wires 69A, 69B is connected to an AC power source 69, and a high voltage is applied between the plate-shaped protective electrode 64A and the cylindrical or columnar exposed electrode 67B.
- the electric wire and the nosing may or may not be grounded together.
- the discharge between the node and lousing 61 and the plate-like protective electrode 64A or the cylindrical or columnar exposed electrode 67B can be prevented by the same method as described above.
- Creeping discharge on the holding wall can also be prevented by the same method as described above.
- a sheath body 60Z that also has an insulating material force is provided at both ends of a cylindrical or columnar exposed electrode 7, and the cylindrical or circular shape is interposed through the sheath body 60Z.
- the columnar exposed electrode 7 is fixed to the housing 1, and the creepable discharge distance between the exposed end 7A of the plate-shaped exposed electrode 7 and the adjacent cylindrical protective electrode Can be substantially extended.
- the gas excitation device of the present invention includes an opening for inflow of the gas G to be processed in a portion corresponding to the upper surface of a substantially rectangular parallelepiped housing, and corresponds to the bottom surface of the housing.
- an opening for discharging the treated gas C is provided in the part to be treated.
- a plurality of various electrodes are provided in the housing where the high-pressure discharge treatment (excitation treatment) is performed, each being spaced apart from each other and having a dischargeable distance. They are arranged in a direction that does not obstruct the flow, and both ends of each electrode are supported by a housing support wall.
- the arrangement of the electrode groups inside the housing is such that the discharge is generated almost evenly inside the housing and the gas to be processed passing between the electrodes is processed almost evenly. Is preferred.
- the gas to be processed G flows from the inflow opening of the gas processing apparatus according to the present invention
- the gas to be processed G is protected between the cylindrical or columnar protective electrode and the plate-shaped protective electrode.
- the discharge opening force is finally discharged.
- a voltage is applied to the first electrode group and the second electrode group in the meantime, a discharge occurs between the electrodes, and gas molecules are excited to generate radicals.
- radicals oxidize and decompose malodorous substances in the gas to be processed or generate ozone, so that the gas to be processed is oxidized.
- the gas to be treated is discharged from the discharge opening together with the radicals and ozone thus generated, and sent to the catalyst part filled with the oxidation promoting catalyst, so that the reaction between the radicals and ozone and the gas to be treated proceeds further. Gas treatment can continue.
- the protection / exposed electrode type device when a through-hole plate electrode is used as the plate-like exposed electrode, for example, as shown in FIGS. 22 and 23, the first electrode group and the second electrode group are used. It is possible to arrange the electrode groups so as to be perpendicular to the flow direction of the gas G to be treated.
- FIG. 22 is a schematic perspective view showing a part of the side wall of the housing 71 of the device 70 of the present invention in such an embodiment
- FIG. 23 is a schematic cross-sectional view thereof. Shown in Fig. 22 and Fig. 23
- the apparatus 70 of the present invention has a housing 71 having an inflow opening 72 for the gas to be processed G and an opening 73 for discharging the treated gas, and the housing 71 has a first inside.
- a columnar protective electrode 76A belonging to the electrode group and a plate-like exposed electrode 75B belonging to the second electrode group are provided.
- the cylindrical protective electrode 76A includes an inner rod-shaped electrode 76X and an insulator coating layer 76Y.
- the insulator coating layer 76Y covers the entire surface of the inner rod-shaped electrode 76X and is supported in a close contact state. Therefore, there is no gap between the inner rod electrode 76X and the insulating coating layer 76Y.
- the gas to be treated comes into contact with the insulating coating layer 76Y and does not come into contact with the internal rod-like electrode 76X.
- the cylindrical protective electrode 76A is connected to an electric wire (not shown)
- the plate-like exposed electrode 75B is connected to an electric wire (not shown)
- each electric wire is connected to an AC power source (not shown).
- the wire and the nosing need not be grounded, but one or both of them may be grounded. In the embodiment shown in FIGS. 22 and 23, the housing 71 is grounded! /
- the gas to be processed G flows from the inflow opening 72 of the gas processing apparatus 70 according to the present invention shown in Figs. 22 and 23, the gas to be processed G opens the openings in the respective plate-like exposed electrodes 75B. Then, the gas passes through between the cylindrical protective electrodes 76A, and is finally discharged from the discharge opening 73. In addition, if a voltage is applied to the cylindrical protective electrode 76A and the plate-like exposed electrode 75B during that time, a discharge occurs between the cylindrical protective electrode 76A and the plate-like exposed electrode 75B, and gas molecules are excited. Radicals are generated.
- a through-hole plate-like protective electrode can be used instead of the through-hole plate-like exposed electrode 75B.
- This through-hole plate-like protective electrode includes a through-hole plate-like internal electrode and an insulator coating layer.
- the insulating coating layer maintains the state in which the force through-holes that cover the entire surface of the through-hole plate-like internal electrode and are carried in close contact can pass the gas to be treated. There is no gap between the through-hole plate-like internal electrode and the insulator film layer.
- the gas to be treated is in contact with the insulating coating layer and is not in contact with the through hole plate-like internal electrode.
- the through-hole plate-like protective electrode can be a cylindrical or columnar protective electrode or an exposed electrode as the other electrode combined therewith.
- a conventionally known gas excitation device for example, the above-mentioned specially disclosed flat plate 9-
- the plate-like protective electrode for example, the above-mentioned specially disclosed flat plate 9-
- the plate-like exposed electrode for example, the above-mentioned specially disclosed flat plate 9-
- the cylindrical or columnar exposed electrode for example, the above-mentioned specially disclosed flat plate 9-
- Each component used in the apparatus described in Japanese Patent No. 199261 or US Pat. No. 5,483,117 can be used as it is.
- the present invention by inducing gas under AC high-pressure discharge conditions to excite gas molecules and generating low-temperature plasma, it can be used, for example, in a deodorizing device or an air purifier. .
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Abstract
Description
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Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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EP05787941A EP1809082A1 (en) | 2004-09-28 | 2005-09-27 | Gas excitation device having insulation film layer carrying electrode and gas excitation method |
US11/576,202 US20090178915A1 (en) | 2004-09-28 | 2005-09-27 | Gas-exciting apparatus having electrode containing insulating coating layer and gas-exciting process |
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JP2004282186A JP2006100031A (ja) | 2004-09-28 | 2004-09-28 | 絶縁体被膜層担持電極を有する気体励起装置、及び気体励起方法 |
JP2004-282186 | 2004-09-28 |
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WO2006035744A1 true WO2006035744A1 (ja) | 2006-04-06 |
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US (1) | US20090178915A1 (ja) |
EP (1) | EP1809082A1 (ja) |
JP (1) | JP2006100031A (ja) |
KR (1) | KR20070083762A (ja) |
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CN114345263B (zh) * | 2022-01-25 | 2024-04-23 | 内蒙古金科发新材料科技有限公司 | 一种热等离子体反应器保护装置 |
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- 2005-09-27 KR KR1020077009165A patent/KR20070083762A/ko not_active Application Discontinuation
- 2005-09-27 CN CNA2005800328424A patent/CN101032190A/zh active Pending
- 2005-09-27 WO PCT/JP2005/017698 patent/WO2006035744A1/ja active Application Filing
- 2005-09-27 US US11/576,202 patent/US20090178915A1/en not_active Abandoned
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JP2013239397A (ja) * | 2012-05-17 | 2013-11-28 | Toshiba Corp | 放熱器及び放熱装置 |
CN107360658A (zh) * | 2016-05-09 | 2017-11-17 | 王连岐 | 一种超薄体放电极低温等离子体发生器 |
Also Published As
Publication number | Publication date |
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JP2006100031A (ja) | 2006-04-13 |
CN101032190A (zh) | 2007-09-05 |
KR20070083762A (ko) | 2007-08-24 |
US20090178915A1 (en) | 2009-07-16 |
EP1809082A1 (en) | 2007-07-18 |
WO2006035744A8 (ja) | 2007-08-23 |
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