WO1993002959A1 - Ozoneur en forme de plaque - Google Patents
Ozoneur en forme de plaque Download PDFInfo
- Publication number
- WO1993002959A1 WO1993002959A1 PCT/JP1992/000960 JP9200960W WO9302959A1 WO 1993002959 A1 WO1993002959 A1 WO 1993002959A1 JP 9200960 W JP9200960 W JP 9200960W WO 9302959 A1 WO9302959 A1 WO 9302959A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gas
- pressure
- ozone generator
- plate
- ozone
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/10—Preparation of ozone
- C01B13/11—Preparation of ozone by electric discharge
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2201/00—Preparation of ozone by electrical discharge
- C01B2201/10—Dischargers used for production of ozone
- C01B2201/12—Plate-type dischargers
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2201/00—Preparation of ozone by electrical discharge
- C01B2201/70—Cooling of the discharger; Means for making cooling unnecessary
- C01B2201/74—Cooling of the discharger; Means for making cooling unnecessary by liquid
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2201/00—Preparation of ozone by electrical discharge
- C01B2201/90—Control of the process
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S422/00—Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing
- Y10S422/907—Corona or glow discharge means
Definitions
- the present invention relates to a plate-type ozone generator configured by stacking a plurality of plate-shaped discharge cells.
- the discharge cell used in the plate-type ozone generator has two electrodes 1 and 1 facing each other to form a discharge gap 2 between them, and air supplied to the discharge gap 2 It is configured to ozone the source gas such as oxygen.
- Each electrode 1 is formed by coating a dielectric on the surface of a metal plate, and its thickness is reduced to about 1.0 mm so as not to cause heat transfer resistance.
- a plate-type ozone generator having a predetermined capacity is formed.
- Reference numeral 3 denotes a frame-shaped packing for forming a discharge gap 2 between the electrodes 1 and 1
- 4 denotes an insulator separator.
- the discharge gap 2 of the discharge cell can be kept narrow and uniform, so that discharge can be performed at a low voltage.
- the electrodes 1 and 1 can be easily enlarged and cooled. Therefore, it is more suitable for generating high-concentration ozone than a tube type.
- An object of the present invention is to provide a blade-type ozone generator that can reliably prevent deformation of a discharge cell even if the discharge cell is large and its internal pressure is high, without forcing the discharge cell. .
- the plate-type ozone generator includes a plate-shaped ozone generator, a plate-shaped ozone generator, an ozone generator main body configured to circulate raw material gas through each discharge cell to form an ozone generator, and a pressure vessel accommodating the ozone generator main body.
- Means for supplying a pressurized gas having substantially the same pressure as the pressure of the source gas supplied into each discharge cell of the ozone generator main body is provided in the pressure vessel.
- the pressure difference between the inside and outside of the discharge cell of the ozone cutter is reduced, even if the discharge cell is large and easily deformed, the deformation of the discharge cell can be suppressed even if the internal pressure is increased.
- a dry gas having a lower dew point than the discharge cell refrigerant is desirable.
- the plate-type ozone generator of the present invention reduces the pressure difference between the inside and outside of the discharge cell, thereby suppressing the deformation of the discharge cell and maintaining the uniformity of the discharge gap. Even if a high-pressure source gas is supplied to the cell, the ozone generation efficiency does not decrease. Therefore, high-concentration, high-pressure ozone gas can be efficiently generated.
- FIG. 1 is a side view schematically showing an example of a plate-type ozone generator embodying the present invention.
- FIG. 2 is a sectional view showing the structure of the discharge cell.
- the plate-type ozone generator of the present invention includes an ozone generator main body 10 composed of a plurality of plate-shaped discharge cells 11 and a pressure vessel 20 containing the ozone generator main body 10. .
- the plurality of discharge cells 11 in the ozone generator body 10 are stacked with a cooler 13 sandwiched between two support plates 12 and 12, and these are connected by a rod 14. It is supported by holding the bolts 16, 16 between the two end plates 15, 15.
- Each of the discharge cells 11 is liquid-cooled by the coolers 13 and 13 for both electrodes 1 and 1 (see FIG. 2).
- the cooler 13 has electric electrodes of both electrodes 1, 1. Pure water or oil is circulated in order to achieve this.
- the raw material gas is supplied at a predetermined pressure from a pipe and a manifold 17 to both electrodes 1 and 1 of each discharge cell 11.
- the pressure vessel 20 internally supports the ozone generator main body 10 by a support member (not shown). Pressurized gas is supplied into the pressure vessel 20 from the upper introduction pipe 21. The pressurized gas in the pressure vessel 20 is maintained at the same pressure as the internal pressure of each discharge cell 11, and is discharged little by little from the lower discharge pipe 22. The raw material gas is sent to the piping manifold 17 by a dedicated gas pipe so that it does not mix with the pressurized gas in the pressure vessel 20, and the ozone gas discharged from each discharge cell 11 is the same. Then, it is led out of the pressure vessel 20 through a dedicated gas pipe.
- the pressurized gas should have a dryness that does not cause condensation on the surface of the cooler 13, and inexpensive instrument air is desirable. Further, SF 6 , N 2, etc. having high electrical conductivity are also desirable.
- Air, oxygen, etc. are used as the source gas, but oxygen is required to increase the concentration.
- the pressure in the discharge cell 11 that is, the pressure between the electrodes 1 and the pressure in the pressure vessel 20 are equalized, and there is no pressure difference between the inside and outside of the cell. Even when the discharge cell 11 is large and a high-pressure raw material gas is supplied therein, the electrodes 1, 1 of the discharge cell 11 are not deformed, and the uniformity of the discharge gap is maintained. . Therefore, high-concentration, high-pressure ozone gas is efficiently generated.
- Table 1 shows the relationship between the discharge gap and the ultimate ozone concentration. Even if the discharge gear is about 0.5 mm, its uniformity is maintained. table 1
- the area of one electrode in the discharge cell is from 300 to 2000 cm 2 .
- the pressurized gas in the pressure vessel 20 is discharged little by little, when the raw material gas or ozone gas leaks from the ozone generator main body 10, the gas is mixed with the pressurized gas and the pressure vessel 20 It is discharged outside. Therefore, leakage of source gas is automatically detected by measuring the emission gas.
- the ability to use a source gas (oxygen, ultra-dry air, etc.) as the pressurized gas In that case, it is difficult to detect leakage of the source gas from the ozone generator body 10.
- Table 2 shows the results when ozone gas was actually generated by the plate-type ozone generator of the present invention. While the generation of ozone concentration in the case of not applying a preload to the pressure vessel 2 0 is 1 2 2 g- 0 3 / m 3, adding a pressurization corresponding to the raw material gas pressure in the pressure container 2 in 0 If you also occurs ozone concentration increases 1 3 2 g- 0 3 / Nm 3 and 8% or more. Since there is no changing conditions other than the presence or absence of pressurization, the improvement of the ozone generation efficiency, presumably because the improved uniformity of the discharge gap by the addition of given pressure c The number of discharge cells six, the electrode area 1 800 cm 2 . Table 2
- Ozone generation efficiency is expressed as ozone generation / electricity consumption.
- Conventional improvements in efficiency have been pursued mainly from the perspective of reducing the electrical energy required for ozone gas generation and saving the total energy of ozone generation.
- the result has been at most about 10 to 15% in the past 10 to 15 years.
- the ozone generation efficiency can be increased by 5 to 10% at a stroke, and the effect is enormous.
- the plate-type ozone generator of the present invention efficiently generates low-concentration, high-pressure ozone gas, and is used in a TEOS-CVD apparatus that requires high-concentration, high-pressure ozone in semiconductor manufacturing equipment. be able to. It is also suitable for the pulp bleaching field where high concentration, large volume ozone and low power consumption are required.
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP92916119A EP0554457B1 (en) | 1991-08-08 | 1992-07-27 | Plate-shaped ozonizer |
DE69230169T DE69230169T2 (de) | 1991-08-08 | 1992-07-27 | Plattenförmiger ozonerzeuger |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3/224568 | 1991-08-08 | ||
JP3224568A JP2564715B2 (ja) | 1991-08-08 | 1991-08-08 | プレート型オゾン発生機 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1993002959A1 true WO1993002959A1 (fr) | 1993-02-18 |
Family
ID=16815808
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1992/000960 WO1993002959A1 (fr) | 1991-08-08 | 1992-07-27 | Ozoneur en forme de plaque |
Country Status (6)
Country | Link |
---|---|
US (1) | US5435978A (ja) |
EP (1) | EP0554457B1 (ja) |
JP (1) | JP2564715B2 (ja) |
CA (1) | CA2092175C (ja) |
DE (1) | DE69230169T2 (ja) |
WO (1) | WO1993002959A1 (ja) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4400517C2 (de) * | 1994-01-07 | 1996-11-07 | Sorbios Verfahrenstech | Vorrichtung zur Erzeugung von Ozon |
JP2983153B2 (ja) * | 1994-04-28 | 1999-11-29 | 三菱電機株式会社 | オゾン発生装置 |
JPH1025104A (ja) * | 1996-07-10 | 1998-01-27 | Mitsubishi Electric Corp | オゾン発生装置 |
US6193852B1 (en) | 1997-05-28 | 2001-02-27 | The Boc Group, Inc. | Ozone generator and method of producing ozone |
US20050210902A1 (en) | 2004-02-18 | 2005-09-29 | Sharper Image Corporation | Electro-kinetic air transporter and/or conditioner devices with features for cleaning emitter electrodes |
US20030206837A1 (en) | 1998-11-05 | 2003-11-06 | Taylor Charles E. | Electro-kinetic air transporter and conditioner device with enhanced maintenance features and enhanced anti-microorganism capability |
US7695690B2 (en) | 1998-11-05 | 2010-04-13 | Tessera, Inc. | Air treatment apparatus having multiple downstream electrodes |
US6176977B1 (en) | 1998-11-05 | 2001-01-23 | Sharper Image Corporation | Electro-kinetic air transporter-conditioner |
JP2009179556A (ja) * | 1999-01-29 | 2009-08-13 | Sumitomo Precision Prod Co Ltd | オゾン発生装置用放電セル及びその放電セルを使用したオゾン発生装置 |
SE514694C2 (sv) | 1999-03-05 | 2001-04-02 | Ozonator Ltd | Anordning och förfarande för generering av ozon där tryckförändringar utjämnas |
DE60122161T2 (de) * | 2000-06-15 | 2006-11-30 | Ozonator Production Ab | Modulares ozon herstellungssystem |
SE518646C2 (sv) * | 2000-06-15 | 2002-11-05 | Ozonator Ltd | Modulärt ozongeneratorsystem |
US6599486B1 (en) | 2000-09-15 | 2003-07-29 | Ozonator, Ltd. | Modular ozone generator system |
WO2002020397A1 (en) * | 2000-09-05 | 2002-03-14 | Ozonator Limited | Flat plate ozone generator |
KR20010035033A (ko) * | 2000-11-14 | 2001-05-07 | 이광식 | 가변 적층 평판형 고농도 오존발생장치 |
SE521845C2 (sv) * | 2002-04-05 | 2003-12-09 | Vatrella Ab | Sätt och anordning vid en trycksatt ozongeneratorenhet |
ATE346016T1 (de) | 2002-05-07 | 2006-12-15 | Hydro Elek K Gmbh | Ozongenerator |
US7029637B2 (en) * | 2003-01-09 | 2006-04-18 | H203, Inc. | Apparatus for ozone production, employing line and grooved electrodes |
US20040136885A1 (en) * | 2003-01-09 | 2004-07-15 | Hogarth Derek J. | Apparatus and method for generating ozone |
US7906080B1 (en) | 2003-09-05 | 2011-03-15 | Sharper Image Acquisition Llc | Air treatment apparatus having a liquid holder and a bipolar ionization device |
US7724492B2 (en) | 2003-09-05 | 2010-05-25 | Tessera, Inc. | Emitter electrode having a strip shape |
US7767169B2 (en) | 2003-12-11 | 2010-08-03 | Sharper Image Acquisition Llc | Electro-kinetic air transporter-conditioner system and method to oxidize volatile organic compounds |
US20060018809A1 (en) | 2004-07-23 | 2006-01-26 | Sharper Image Corporation | Air conditioner device with removable driver electrodes |
US20060045826A1 (en) * | 2004-08-26 | 2006-03-02 | Mullaney Robert A | Apparatus and method to generate pressurized ozone gas |
US7833322B2 (en) | 2006-02-28 | 2010-11-16 | Sharper Image Acquisition Llc | Air treatment apparatus having a voltage control device responsive to current sensing |
US9102536B2 (en) * | 2009-11-13 | 2015-08-11 | Del Industries Inc. | Ozone generator systems, methods and apparatus |
US9039985B2 (en) | 2011-06-06 | 2015-05-26 | Mks Instruments, Inc. | Ozone generator |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5358989A (en) * | 1972-08-17 | 1978-05-27 | Purification Sciences Inc | Dielectric liquid soaked corona generator |
JPH0196001A (ja) * | 1987-10-07 | 1989-04-14 | Sumitomo Precision Prod Co Ltd | オゾン発生器用冷却装置 |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US614500A (en) * | 1898-11-22 | Alexander s | ||
US811364A (en) * | 1905-06-09 | 1906-01-30 | Charles F Birtman | Ozone-generator. |
US1149254A (en) * | 1912-02-28 | 1915-08-10 | Horace Dumars | Apparatus for producing ozone and separating gases. |
US2118969A (en) * | 1934-05-12 | 1938-05-31 | American Ozone Company | Electric ozone generator |
US2128455A (en) * | 1936-01-17 | 1938-08-30 | Arthur R Darling | Ozonizer |
US2309616A (en) * | 1937-11-02 | 1943-01-26 | Ozone Dev Corp | Ozone generator |
US2345798A (en) * | 1940-02-15 | 1944-04-04 | American Ozone Company | Ozone generator |
US2403241A (en) * | 1940-08-03 | 1946-07-02 | Sanozone Corp | Ozone generating cell |
US2404778A (en) * | 1942-06-29 | 1946-07-30 | Donald K Allison | Apparatus for producing ozone |
US2561014A (en) * | 1947-08-01 | 1951-07-17 | Daily James Marlowe | Ozone generator |
US2744865A (en) * | 1952-04-05 | 1956-05-08 | Nicholas J Penning | Ozone generator |
DE1090186B (de) * | 1959-06-23 | 1960-10-06 | Demag Elektrometallurgie Gmbh | Druckfestes Ozongeraet |
FR1382012A (fr) * | 1963-02-12 | 1964-12-14 | British Oxygen Co Ltd | Ozoniseur perfectionné |
US3309304A (en) * | 1963-04-30 | 1967-03-14 | Caplan Benjamin | Ozone generators |
US3899682A (en) * | 1969-06-04 | 1975-08-12 | Purification Sciences Inc | Corona reactor method and apparatus |
US3663418A (en) * | 1970-01-26 | 1972-05-16 | Environment One Corp | Periodically reversed gas flow ozone production method and apparatus |
US4606892A (en) * | 1984-06-26 | 1986-08-19 | Bruno Bachhofer | Ozone generator of stack-type design, employing round plate-electrodes |
CH660474A5 (de) * | 1984-06-27 | 1987-04-30 | Bbc Brown Boveri & Cie | Roehrenozonisator mit gekuehlter innenelektrode. |
US4666679A (en) * | 1984-07-18 | 1987-05-19 | Ngk Spark Plug Co., Ltd. | Ceramic ozonizer |
DE3521985A1 (de) * | 1985-05-21 | 1986-11-27 | BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau | Ozonerzeuger |
US4892713A (en) * | 1988-06-01 | 1990-01-09 | Newman James J | Ozone generator |
US4908189A (en) * | 1988-07-15 | 1990-03-13 | Henkel Corporation | Concentric tube ozonator |
CH676710A5 (ja) * | 1989-03-03 | 1991-02-28 | Asea Brown Boveri |
-
1991
- 1991-08-08 JP JP3224568A patent/JP2564715B2/ja not_active Expired - Fee Related
-
1992
- 1992-07-27 WO PCT/JP1992/000960 patent/WO1993002959A1/ja active IP Right Grant
- 1992-07-27 DE DE69230169T patent/DE69230169T2/de not_active Expired - Fee Related
- 1992-07-27 EP EP92916119A patent/EP0554457B1/en not_active Expired - Lifetime
- 1992-07-27 CA CA002092175A patent/CA2092175C/en not_active Expired - Fee Related
-
1993
- 1993-06-08 US US08/030,300 patent/US5435978A/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5358989A (en) * | 1972-08-17 | 1978-05-27 | Purification Sciences Inc | Dielectric liquid soaked corona generator |
JPH0196001A (ja) * | 1987-10-07 | 1989-04-14 | Sumitomo Precision Prod Co Ltd | オゾン発生器用冷却装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP0554457A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP0554457A1 (en) | 1993-08-11 |
EP0554457A4 (en) | 1994-06-29 |
JPH0543204A (ja) | 1993-02-23 |
EP0554457B1 (en) | 1999-10-20 |
DE69230169T2 (de) | 2000-03-09 |
DE69230169D1 (de) | 1999-11-25 |
US5435978A (en) | 1995-07-25 |
JP2564715B2 (ja) | 1996-12-18 |
CA2092175C (en) | 1998-04-21 |
CA2092175A1 (en) | 1993-02-09 |
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