CN100377992C - Composition board type high-frequency large-scale ozone generator - Google Patents
Composition board type high-frequency large-scale ozone generator Download PDFInfo
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- CN100377992C CN100377992C CNB2005100445491A CN200510044549A CN100377992C CN 100377992 C CN100377992 C CN 100377992C CN B2005100445491 A CNB2005100445491 A CN B2005100445491A CN 200510044549 A CN200510044549 A CN 200510044549A CN 100377992 C CN100377992 C CN 100377992C
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Abstract
The present invention relates to a combined plate-type high-frequency large-sized ozone generator which is composed of ground electrodes, ceramic sheet dielectric bodies, heat conduction spacers, high voltage electrodes, elastic rubber pads, end sealing members, space locating members, air guiding pipes, pressing strips, water pipelines and gas pipelines, wherein the built-in ceramic sheet dielectric body arranged between every two electrodes, the heat conduction spacer, the high voltage electrode, the elastic rubber pad, the end sealing member, the space locating member, the air guiding pipe and the pressing strip jointly form a small electric discharge unit of a generator, and a plurality of the electrode combining small units are fixedly assembled to form an electrode unit combination. A gas and water inlet and a gas and water outlet of each electrode unit combination are connected to each general pipeline through movable joint flexible pipes. The present invention is in a composite structure, is ozone producing equipment, has the characteristics of simple operation, simple repair, small size, light weight, energy saving, high efficiency and large gas production. When the ozone concentration is the specified value of 100 mg/L, the energy consumption is less than 8 kwh/kgO3, gas yield reaches more than 1 kgO3/m, the produced ozone can meet the needs of multiple industries of water deep treatment, chemical industry, aquiculture, etc.
Description
Affiliated technical field
The invention belongs to ozone High-efficient Production device, is a kind of composition board type high-frequency large-scale ozone generator.
Background technology
Before the present invention made, existing gap discharge formula large-scale ozone generator was to have developed into medium frequency equipment by the power frequency machine, and its material is used and state of the art is also improving constantly.Be typically at present the medium frequency equipment of tubular structure in the world, dielectric substance has mostly replaced vitreum with enamel between its electrode, and the performance of medium frequency equipment also is greatly improved, under higher ozone concn (〉=80mg/L), higher efficient (9-10kwh/kgO is arranged
3) and bigger gas production rate (reach tens of kgO
3/ h).As the large-scale ozone equipment of Switzerland OZONIA company and German WEDECO company and FJD's production, irritate body, discharge body, power drives and high-tension transformer by producer and constitute.Its advantage of this kind product is that technology is simple relatively, routine techniques utilization ratio height, but the enamel that weak point is to use (or glass) dielectric substance loss of energy is big, non-water cooled electrode temperature rise, the discharging gap gas circuit is long, thereby cause in the process that ozone generates decomposition amount big, influence the raising of efficient and ozone concn, and have equipment volume and weight greatly, consumptive material and cost height, transportation, by shortcomings such as dress, maintenance difficult.
Summary of the invention
The purpose of this invention is to provide a kind of energy-efficient capable of being combined board-like high-frequency large-scale ozone generating unit, be used for fecund industry fields such as water depth processing, chemical industry and aquaculture, make its volume little, in light weight, sturdy and durable, have province's energy, high-level efficiency, atm number, ozone concn height, the fast characteristics of production rate, to satisfy various ozone output requirements.
The present invention realizes by following technical scheme: its structure is made up of ground electrode, ceramic plate dielectric substance, heat conduction pad, high voltage electrode, elastic rubber fitting, end seal, spacing positioning element, airway, press strip and water, air pipe.The ground electrode two sides are provided with ceramic plate dielectric substance, heat conduction pad, high voltage electrode and elastic rubber fitting.The ceramic plate dielectric substance is pasted on two planes of ground electrode; On two planes of ceramic plate dielectric substance, one side is with metallic film conductive and heat-conductive layer, and another side is coated with matcoveredn.The ceramic plate dielectric substance with the metal face is close at place, ground electrode two planes; End seal is fixed on ground electrode two planar two ends through steady brace and spacing positioning element; High voltage electrode is made of anti-rotten metal sheet and heat conduction aluminium alloy plate, and the heat conduction aluminium alloy plate is placed in the groove of anti-rotten metal sheet, and the two plane closely contacts; Anti-rotten metal sheet two ends are provided with positioning recess, and both sides are provided with rib.Heat conduction aluminium alloy plate two ends are provided with positioning recess, and an end is provided with high-voltage connection, and one side is provided with many equidistant projection ribs.High voltage electrode is positioned at the outside of ground electrode two sides ceramic plate dielectric substance; Place uniform thickness heat conduction pad between the anti-rotten metal sheet of high voltage electrode and ceramic plate dielectric substance, leave discharging gap between the heat conduction pad; High voltage electrode end positioning recess be fixed on the end seal after the end seal positioning pin cooperates; Place elastic rubber fitting between two high voltage electrodes; Airway is fixed in adjacent ground electrode both sides by press strip.
Between per two ground electrodes and in ceramic plate dielectric substance, heat conduction pad, high voltage electrode, elastic rubber fitting, end seal, spacing positioning element, airway, the press strip established constitute producer discharge junior unit jointly.
Several producer discharge junior units are equipped fixing by four screw connecting rods that are positioned at electrode unit combination general assembly connecting hole, constituted the electrode unit combination.
The entery and delivery port of each electrode unit combination and the inlet, outlet of each airway by having the teflon hose of gas, water union, are connected on each electrode unit combination main pipe rail.High-voltage connection is drawn through place, insulating end seal intermediary high-voltage connection hole, inserts the high-voltage power supply bus through safety fuse.
Establish the water-cooled pipeline in the ground electrode, each adjacent tubes interconnects.Both ends are provided with water-in and water outlet, and two side ends is provided with fixedly press strip silk hole and airway flanging and sealing bead embedding groove, and the two ends of two sides are provided with spacing positioning element fixed orifices, electrode unit combination general assembly connecting hole and dowel hole.The ceramic plate dielectric substance with the metal face is close at place, ground electrode two planes.
End seal is provided with dowel hole, location oblong aperture, positioning embeded groove, positioning pin, high-tension line input hole.The end seal middle part is provided with dowel hole, and a side is provided with positioning pin, and the location oblong aperture is by spacing positioning element location end seal, is positioned at the both sides of end seal.End seal simultaneously is provided with the positioning embeded groove of ceramics, and one side is provided with the high-voltage connection hole.
Elastic rubber fitting is by positioning recess and end seal positioning pin positioning and fixing; The elastic rubber fitting two sides is provided with a plurality of symmetric projection ribs.
Airway is provided with pore, sealing bead, flanging, gas port.Sealing bead, flanging are positioned at the embedding groove of airway both sides; Pore is positioned at airway, and is identical with the turnover tracheae.Airway is fixed in two adjacent ground electrode two sides by press strip; Gas port is positioned at airway one end, the airway of two ground electrode both sides, and the gas port of a side is an inlet mouth, and the gas port of opposite side is the air outlet.
The present invention and prior art contrast are characterized in:
The present invention's start need not slow preheating, and the ceramic dielectric body does not have the impaired harm of thermal shocking, and operation is very easy to.
Maintenance and repair of the present invention is very simple, can finish in a short period of time, greatly makes things convenient for the user, reduces user's loss.
The present invention adopts the combined structure, and how many its ozone outputs determines that by electrode unit number of combinations and producer discharge junior unit quantity can satisfy various ozone output requirements, production rate is fast, quick service.
The present invention is few with material, volume is little, transportation vibration in light weight, anti-, sturdy and durable, save the energy, efficient height, ozone concn height, gas production rate is big, occupation area of equipment is little, reduction of expenditure.
The present invention has overcome the weakness of medium frequency equipment, and technical indicator significantly improves, and when having reached specified ozone concn 100mg/L, energy consumption is less than 8kwh/kgO
3, gas production rate reaches 1kgO
3/ m
2More than.
Description of drawings:
Fig. 1: composition board type high-frequency ozonizer plan of site (dashed rectangle is represented the combination of elliptical 3-5 group electrode unit among the figure): 1-water route, 2-gas circuit, the combination of 3-electrode unit, 4-circuit.49-gas, water union.
Fig. 2: the producer formed between per two ground electrodes discharge junior unit structural representation: 5-airway, 6 ,-press strip, 7-ground electrode, 8-ceramic plate dielectric substance, 9-heat conduction pad, the anti-rotten metal sheet of 10-, 11-heat conduction aluminium alloy plate, 12-elastic rubber fitting, 13-end seal, 14-spacing positioning element.
Fig. 3: ground electrode shape synoptic diagram: 15-ground electrode spacing positioning element fixed orifices, 16-electrode unit combination general assembly connecting hole, 17-dowel hole, 18-water-in, 19-be press strip silk hole, 20-embedding groove, 21-water outlet fixedly.。
Fig. 4: airway shape synoptic diagram: 22-pore, 23-sealing bead, 24-flanging, 25-gas port.
Fig. 5: press strip shape synoptic diagram: 26-press strip fixed screw holes.
Fig. 6: end seal (front) shape synoptic diagram: 27-dowel hole, 28-location oblong aperture, 29-positioning embeded groove, 30-positioning pin.
Fig. 7: end seal (reverse side) shape synoptic diagram: 31-high-voltage connection hole.
Fig. 8: spacing positioning element shape synoptic diagram: 32-fixed orifices, 33-electrode unit combination general assembly connecting hole.
Fig. 9: ceramic plate dielectric substance shape synoptic diagram:
Figure 10: heat conduction pad
Figure 11: anti-rotten sheet metal shape synoptic diagram: 34-positioning recess, 35-rib.
Figure 12: heat conduction aluminium alloy plate shape synoptic diagram: 36-projection rib, 37-positioning recess, 38-high-voltage connection.
Figure 13: elastic plastic pulvilliform shape synoptic diagram: 39-projection rib, 40-positioning recess.
Figure 14: gas, water union shape synoptic diagram: 41-nut, 42-stainless joint, 43-adapter sleeve, 44-teflon hose.
Figure 15: power circuit diagram: the 45-three phase rectifier is touched piece, 46-filter condenser, 47-IGBT and is touched piece, 48-high-tension transformer, 50-inducer, 51-producer.
Embodiment
Be described in detail structure of the present invention and principle of work in conjunction with the accompanying drawings below by embodiment.The present invention realizes by following technical scheme: its structure (seeing Fig. 2-13) mainly is made up of ground electrode (7), ceramic plate dielectric substance (8), heat conduction pad (9), high voltage electrode (10,11), elastic rubber fitting (12), end seal (13), spacing positioning element (14), airway (5), press strip (6) and water, air pipe (1,2).Ground electrode (7) (shown in Figure 3) is to be made by the high thermal conductivity coefficient aluminum alloy materials, is 260mm * 170mm * 25mm, the physical strength height, and area of dissipation is big, and ground electrode also is a water-cooled high-efficiency radiator, is again the pedestal that can fix other parts.Be provided with a plurality of φ 11mm circular hole water-cooled pipelines (1) in the ground electrode (7), each adjacent tubes end communicates, in water coolant circulation is arranged, both ends are provided with water-in (18) and water outlet (21), two side ends is provided with fixedly press strip silk hole (19) and airway flanging and sealing bead embedding groove (20), and the two ends of two sides are provided with spacing positioning element fixed orifices (15), electrode unit combination general assembly connecting hole (16) and dowel hole (17).Ground electrode (7) two sides are provided with ceramic plate dielectric substance (8), heat conduction pad (9), high voltage electrode (10,11) and elastic rubber fitting (12) (see figure 2).The ceramic plate dielectric substance (8) with metallic film is close at place, ground electrode (7) two planes, and good thermal conductivity is arranged between the assurance.End seal (13) (seeing Fig. 6,7) is provided with dowel hole (27), location oblong aperture (28), positioning embeded groove (29), positioning pin (30), high-voltage connection hole (31).End seal (13) middle part is provided with dowel hole (27), and a side is provided with positioning pin (30), and location oblong aperture (28) is by spacing positioning element (14) location end seal (13), is positioned at the both sides of end seal (13).End seal (13) one side is provided with positioning embeded groove (29), and one side is provided with high-voltage connection hole (31).End seal (13) is fixed on ground electrode (7) two planar two ends through steady brace and spacing positioning element (14); End seal (13) possesses the location three efficacy of air seal, High-Voltage Insulation isolation, high voltage electrode (10,11) simultaneously.Ceramic plate dielectric substance (8) (see figure 9) is an alumina-ceramic thin slice, is 185mm * 222mm * 0.635mm, and 96# pottery, ceramic plate dielectric substance (8) are pasted on (7) two planes of ground electrode; On two planes of ceramic plate dielectric substance (8), one side is with metallic film electricity heat-conducting layer, and guaranteeing has good thermal conductivity between ceramic plate dielectric substance (8) and the ground electrode (7); Another side is coated with matcoveredn, plays to reduce the wastage, and adds the long life effect.High voltage electrode (10,11) (seeing Figure 11,12) is made of anti-rotten metal sheet (10) and heat conduction aluminium alloy plate (11), and anti-rotten metal sheet (10) is 170mm * 205mm * 0.5mm, and two ends are provided with positioning recess (34), and both sides are provided with rib (35).Heat conduction aluminium alloy plate (11) is 170mm * 205mm * 4mm, and heat conduction aluminium alloy plate (11) is placed in the groove of anti-rotten metal sheet (10), and the two plane closely contacts; Heat conduction aluminium alloy plate (11) two ends are provided with positioning recess (37), and an end is provided with high-voltage connection (38), and high-voltage connection (38) is located to draw through insulating end seal intermediary high-voltage connection hole (31), insert the high-voltage power supply bus through safety fuse; One side is provided with many equidistant projection ribs (37), and this rib (36) produces appropriate elastic pressure with elastic rubber fitting (12) effect.High voltage electrode (10,11) is positioned at the outside of the outer two ceramic plate dielectric substances (8) of ground electrode (7).High voltage electrode (10,11) possesses anti-corona discharge corrosion, can rapidly heat be passed away again.(10 of high voltage electrode; 11) anti-rotten metal sheet (10) is equidistantly evenly placed 6 heat conduction pads (9) (see figure 10) with ceramic plate dielectric substance (8); every is 170mm * 10mm * 0.4mm; this pad (9) is close to high voltage electrode (10 under the pressure effect of elastic rubber fitting (12); 11) on discharge face and ceramic dielectric body (8) protective surface; the heat conduction pad leaves abundant discharging gap between (9); the distance size of the thickness decision discharging gap of heat conduction pad (9); the heat of high voltage electrode conducts to ground electrode (7) through this pad, with water-cooling pattern heat is taken away.High voltage electrode (10,11) end positioning recess (34,37) be fixed on the end seal (13) after end seal (13) positioning pin (30) cooperates.Airway (5) (see figure 4) is provided with pore (22), sealing bead (23), flanging (24), gas port (25).Sealing bead (23), flanging (24) are positioned at the both sides of airway (5), and pore (22) is positioned at airway (5), and be identical with the turnover tracheae.Airway (5) is fixed in adjacent two ground electrodes (7) both sides by press strip (6); Airway (5) seals with rubber cushion with ground electrode (7) contact position, and gas is not leaked under specified pressure; Airway (5) possesses gas importing (or outflow) and two kinds of effects of sealing cover, and the absence of discharge edge of ceramic plate dielectric substance (8) is protected therein in its groove simultaneously, avoids damage.Gas port (25) is positioned at airway (5) one ends, the airway (5) of two ground electrodes (7) both sides, and the gas port of a side is an inlet mouth, and the gas port of opposite side is the air outlet.The outer elastic rubber fitting (12) (seeing Figure 13) of placing of (7) two high voltage electrodes of ground electrode (10,11), elastic rubber fitting (12) two ends are provided with positioning recess (40), positioning recess (40) and end seal (13) positioning pin (30) positioning and fixing; Elastic rubber fitting (12) two sides is provided with a plurality of symmetric projection ribs (39), press the even and symmetrical distribution of certain distance, it can be in contact with one another the back with high voltage electrode aluminium plywood projection rib (36) and produce appropriate elastic force, make high voltage electrode (10,11), heat conduction pad (9), ceramic plate dielectric substance (8), each interplanar of ground electrode keep good tight contact, thereby can guarantee good heat-conducting and accurate discharging gap distance; Salable this contact surface makes it not allow gas pass through simultaneously, can not make ceramic plate dielectric substance (8) stressed excessive and broken again, and can make heat conduction aluminium alloy plate (11), ceramic plate dielectric substance (8), anti-rotten metal sheet (10) three the coefficient of linear expansion difference causes dimensional change when temperature variation the time, can be free to slide between each face, ceramic plate dielectric substance (8) can not produce unfair stress and damage.Between the per two adjacent ground electrodes (7) and in ceramic plate dielectric substance (8), heat conduction pad (9), high voltage electrode (10,11), elastic rubber fitting (12), end seal (13), spacing positioning element (14), airway (5), the press strip (6) established constitute producer discharge junior unit (shown in Figure 2) jointly.Whenever be adjacent to electrode (7) interplanar and place two ceramic plate dielectric substances (8), two high voltage electrodes (10,11), the equidistant heat conduction pad (9) of placing between ceramic plate dielectric substance (8) and two high voltage electrodes (10,11), electrode is provided with elastic rubber fitting (12) between (10,11), be adjacent to guarantee accurate spacing with spacing positioning element (14) between the electrode (7), guarantee the relative position consistence with steady brace.Whenever it is fixing with airway (5) by screw hole and press strip (6) to be adjacent to electrode (7) both sides, and seals with rubber cushion in the contact position, the corresponding basic junior unit of per two ground electrodes (7),
Several combination of electrodes junior units are equipped fixing by four screw connecting rods that are positioned at electrode unit combination general assembly connecting hole (16), constituted unit group of producer-electrode unit combination (3) (shown in Figure 1).
The entery and delivery port of each electrode unit combination (3) and the inlet, outlet of each airway by having the teflon hose of union, are connected on each electrode unit combination (3) main pipe rail.High-voltage connection (38) high-voltage connection hole (31) in the middle of the insulating end seal is located to draw, and inserts the high-voltage power supply bus through safety fuse.
Power source circuit (shown in Figure 15) is touched piece (100A/1200V) (45), filter condenser (10000uF/450V) (46), IGBT by three phase rectifier and is touched piece (300A/1200V) (47), high-tension transformer (48), inducer (50) and form.Three phase rectifier filtering circuit (45,46) is made of three phase rectifier bridge module (45) and filter condenser (46), the IGBT power driving circuit is made up of IGBT power model (47) and control circuit board, and high-voltage output circuit is made up of 500uH inductance and high-tension transformer (48).High-tension transformer (48) output a, b termination are gone on the high voltage electrode (10,11) and ground electrode (7) of producer (51).
Principle of work of the present invention is such:
The direct current that the three-phase alternating-current supply of 380V/50HZ obtains pulsing after the rectifier bridge rectification, obtain 510V volts DS stably through capacitor filtering again, the supply power driving circuit, power driving circuit is finished switch under the pulse action of 100us cycle rectangular wave, thereby, boost to 4000V through high-tension transformer and insert producer having high-frequency voltage to produce by the first utmost point of the transformer of inducer.Insert when this high-frequency high-voltage between the high voltage electrode and ground electrode of producer, in the process air gap of ceramic plate noiseless corona discharge takes place just between two electrodes, this discharge process makes oxygen molecule be ionized into Sauerstoffatom, and Sauerstoffatom and do not have ionized oxygen molecule to be combined into ozone molecule, these ozone molecules flow to pipeline under pressure and obtain for the ozone that uses, two electrodes produce heat and take away through ground electrode recirculated water, keep the electrode working temperature constant, when changing the high pressure amplitude or changing airshed, pressure can be adjusted ozone concn height and output size for different needs.
Use the present invention when start, at first open water coolant, again source of the gas is transferred to rated pressure and flow, source of the gas rated pressure 0.5-1kg/cm
2, flow is 10-15m
3/ hour, start power supply then, promptly reach steady-working state after several minutes, elder generation's power cutoff turn-offs source of the gas and water coolant again during shutdown.
Claims (5)
1. composition board type high-frequency large-scale ozone generator: the structure that it is characterized in that it is made up of ground electrode (7), ceramic plate dielectric substance (8), heat conduction pad (9), high voltage electrode (10,11), elastic rubber fitting (12), end seal (13), spacing positioning element (14), airway (5), press strip (6) and water, air pipe (1,2); Ground electrode (7) two sides are provided with ceramic plate dielectric substance (8), heat conduction pad (9), high voltage electrode (10,11) and elastic rubber fitting (12); Ceramic plate dielectric substance (8) is pasted on (7) two planes of ground electrode; On two planes of ceramic plate dielectric substance (8), one side is with metallic film conductive and heat-conductive layer, and another side is coated with matcoveredn; The ceramic plate dielectric substance (8) with the metal face is close at place, ground electrode (7) two planes, and end seal (13) is fixed on ground electrode (7) two planar two ends through steady brace and spacing positioning element (14); High voltage electrode (10,11) is made of anti-rotten metal sheet (10) and heat conduction aluminium alloy plate (11), and heat conduction aluminium alloy plate (11) is placed in the groove of anti-rotten metal sheet (10), and the two plane closely contacts; Anti-rotten metal sheet (10) two ends are provided with positioning recess (34), and both sides are provided with rib (35); Heat conduction aluminium alloy plate (11) two ends are provided with positioning recess (37), and an end is provided with high-voltage connection (38), and one side is provided with many equidistant projection ribs (37); High voltage electrode (10,11) is positioned at the outside of ground electrode (7) two sides ceramic plate dielectric substance (8); Place uniform thickness heat conduction pad (9) between the anti-rotten metal sheet (10) of high voltage electrode (10,11) and ceramic plate dielectric substance (8), the heat conduction pad leaves discharging gap between (9); High voltage electrode (10,11) end positioning recess (34,37) be fixed on the end seal (13) after end seal (13) positioning pin (30) cooperates; Place elastic rubber fitting (12) between two high voltage electrodes (10,11); Airway (5) is fixed in adjacent ground electrode (7) both sides by press strip (6);
Between per two ground electrodes (7) and in ceramic plate dielectric substance (8), heat conduction pad (9), high voltage electrode (10,11), elastic rubber fitting (12), end seal (13), spacing positioning element (14), airway (5), the press strip (6) established constitute producer discharge junior unit jointly;
Several producer discharge junior units are equipped fixing by four screw connecting rods that are positioned at electrode unit combination general assembly connecting hole (16), constituted electrode unit combination (3);
The water-in and water-out (18,21) of each electrode unit combination (3) and the inlet, outlet (25) of each airway by having the teflon hose (44) of gas, water union (49), are connected on each electrode unit combination (3) main pipe rail; High-voltage connection (38) is located to draw through insulating end seal intermediary high-voltage connection hole (31), inserts the high-voltage power supply bus through safety fuse.
2. composition board type high-frequency large-scale ozone generator according to claim 1: it is characterized in that establishing water-cooled pipeline (1) in the described ground electrode (7), each adjacent tubes interconnects; Both ends are provided with water-in (18) and water outlet (21), two side ends is provided with fixedly press strip silk hole (19) and airway flanging and sealing bead embedding groove (20), and the two ends of two sides are provided with spacing positioning element fixed orifices (15), electrode unit combination general assembly connecting hole (16) and dowel hole (17).
3. composition board type high-frequency large-scale ozone generator according to claim 1: it is characterized in that described end seal (13) is provided with dowel hole (27), location oblong aperture (28), positioning embeded groove (29), positioning pin (30), high-tension line input hole (31); End seal (13) middle part is provided with dowel hole (27), and a side is provided with positioning pin (30), and location oblong aperture (28) is by spacing positioning element (14) location end seal (13), is positioned at the both sides of end seal (13); End seal (13) one side is provided with the positioning embeded groove (29) of ceramics, and one side is provided with high-voltage connection hole (31).
4. composition board type high-frequency large-scale ozone generator according to claim 1: it is characterized in that described elastic rubber fitting (12) two ends are provided with positioning recess (40), positioning recess (40) and end seal (13) positioning pin (30) positioning and fixing; Elastic rubber fitting (12) two sides is provided with a plurality of symmetric projection ribs (39), and projection rib (39) is pressed the even and symmetrical distribution of certain distance.
5. composition board type high-frequency large-scale ozone generator according to claim 1: it is characterized in that described airway (5) is provided with pore (22), sealing bead (23), flanging (24), gas port (25); Sealing bead (23), flanging (24) are positioned at the embedding groove (20) of airway (5) both sides; Pore (22) is positioned at airway (5), and is identical with the turnover tracheae; Airway (5) is fixed in adjacent two ground electrodes (7) two sides by press strip (6); Gas port (25) is positioned at airway (5) one ends, the airway (5) of two ground electrodes (7) both sides, and the gas port of a side is an inlet mouth, and the gas port of opposite side is the air outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100445491A CN100377992C (en) | 2005-09-06 | 2005-09-06 | Composition board type high-frequency large-scale ozone generator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100445491A CN100377992C (en) | 2005-09-06 | 2005-09-06 | Composition board type high-frequency large-scale ozone generator |
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|---|---|
| CN1762793A CN1762793A (en) | 2006-04-26 |
| CN100377992C true CN100377992C (en) | 2008-04-02 |
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| CN1762793A (en) | 2006-04-26 |
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