WO2004105959A1 - 静電霧化装置及びこれを用いた空気清浄機 - Google Patents
静電霧化装置及びこれを用いた空気清浄機 Download PDFInfo
- Publication number
- WO2004105959A1 WO2004105959A1 PCT/JP2004/007594 JP2004007594W WO2004105959A1 WO 2004105959 A1 WO2004105959 A1 WO 2004105959A1 JP 2004007594 W JP2004007594 W JP 2004007594W WO 2004105959 A1 WO2004105959 A1 WO 2004105959A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electrode
- liquid
- discharge end
- capillary
- carrier
- 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
- C01B5/00—Water
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
- A61L2/22—Phase substances, e.g. smokes, aerosols or sprayed or atomised substances
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/14—Disinfection, sterilisation or deodorisation of air using sprayed or atomised substances including air-liquid contact processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/01—Pretreatment of the gases prior to electrostatic precipitation
- B03C3/014—Addition of water; Heat exchange, e.g. by condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
- B05B5/0255—Discharge apparatus, e.g. electrostatic spray guns spraying and depositing by electrostatic forces only
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B15/00—Peroxides; Peroxyhydrates; Peroxyacids or salts thereof; Superoxides; Ozonides
- C01B15/01—Hydrogen peroxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
Definitions
- the present invention relates to a useless electrostatic atomizer that discharges liquid as fine charged particles and an air cleaner using the same.
- Japanese Patent Publication No. 2001-286546 discloses a conventional electrostatic atomizer.
- This electrostatic atomizer changes the liquid ejected from the nozzle into fine charged particles by applying a high voltage between a nozzle that atomizes the liquid and an electrode that is arranged close to the nozzle orifice. It is. In this case, a spray mechanism for ejecting the liquid from the nozzle is required.
- Japanese Patent Publication No. 3260 150 discloses another conventional electrostatic atomizer. This electrostatic atomizer uses a metal, glass, or plastic capillary structure as a liquid carrier instead of using a nozzle and a liquid atomizing mechanism, and uses the capillary action to move the tip of the carrier.
- the liquid is supplied to the discharge end by capillary action, and a high voltage is applied to the discharge end to charge the liquid and discharge it as fine charged particles.
- the liquid to be atomized, C a if it contains mineral components such as M g, these minerals proceeds the tip of the capillary structure, and C0 2 in air On the other hand, it may be deposited and adhered as 0 3 ⁇ 3 ⁇ ! ⁇ 1 ⁇ 0 etc., making it difficult for electrostatic atomization to occur. Is required. Disclosure of the invention
- the present invention has been made to overcome the above-described problems, and uses a capillary structure that does not require a liquid atomizing mechanism such as a nozzle as a liquid carrier, while also using a capillary carrier tip.
- An object of the present invention is to provide an electrostatic atomizer that can stably perform electrostatic atomization over a long period of time by eliminating the deposition of minerals at the discharge end and an air purifier incorporating the electrostatic atomizer.
- the electrostatic atomizer of the present invention includes a capillary transport body, the capillary transport body has a liquid collecting end and a discharge end opposite to the liquid collecting end, and the liquid collecting end collects the liquid and collects the liquid. It is transported to the discharge end.
- the apparatus further includes a first electrode for electrically charging the liquid, a second electrode facing the discharge end, and a voltage source.
- the first electrode is electrically connected to the carrier at a point apart from the discharge end along the length of the carrier.
- the voltage source is connected between the first and second electrodes.
- a pressure is applied to charge the liquid at the discharge end and discharge it as fine charged particles.
- a feature of the present invention is that a capillary carrier is selected from at least one of a plurality of materials having different equipotential points based on criteria satisfying the following conditions.
- the pH of the liquid used is If it is 10 or less, the capillary carrier is formed of at least one selected from alumina, titania, zirconia, and silica materials. These ceramic materials have a pH of less than 9 at the equipotential point and come into contact with the liquid at pH 10; at the time of £, the inner wall surface of the capillary carrier becomes negatively charged, causing a small liquid flow path.
- An electric double layer is formed inside the capillaries, that is, an immobile layer of positive charges is formed on the inner wall surface of the capillary carrier, and a positive layer is further diffused thereon to form a diffusion layer.
- a positive layer is further diffused thereon to form a diffusion layer.
- Positive ions that is, floating ions of mineral components such as Ca10 and Mg + can be kept away from the discharge end.
- the first electrode is set to a positive potential with respect to the second electrode, and the second electrode is discharged from the discharge end of the capillary carrier!
- the capillary carrier is made of magnesia alone or magnesia. It is formed of a mixed material with alumina.
- the ceramic material of Yeura et al. Has a higher pH at the equipotential point than the pH of the liquid, and when it comes into contact with the liquid, the inner wall surface inside the capillary transport body becomes positively charged.
- the electrostatic atomizer having such a configuration is incorporated in a device such as an air purifier.
- the air purifier has a filter for trapping contaminants in the housing and a fan for circulating air through the filter.
- the atomizer is located in the housing downstream of the fan and the filter. This makes it possible to remove contaminants with a filter and put it in a clean air stream to discharge the finely charged liquid particles into the room indoors. It can be performed.
- FIG. 1 is an exploded perspective view of an electrostatic atomizer according to one embodiment of the present invention.
- Fig. 3 is a schematic diagram showing the operation of the above device.
- Fig. 4 and IH5 are schematic diagrams showing the effect of electroosmotic flow generated in the capillary carrier used in the above equipment.
- FIG. 6 is a cross-sectional view showing an example of an air purifier incorporating a rising device.
- the electrostatic atomizer M is, for example, manufactured so as to generate nanometer-sized charged fine particle water which is obtained by making water fine and charged.
- the electrostatic atomizer M includes a base 1 O for holding a plurality of capillary carriers 20, a cylindrical body 30 surrounding the upper surface of the base 10, and a cylindrical body 30. It comprises an electrode plate 40 housed in the upper end opening, and a water tank 50 detachably attached to the lower surface of the base 10.
- Each capillary carrier 20 is a porous ceramic rod having a diameter of about 5 mm and a length of about 7 Omm.
- the tip of the part that penetrates the base 10 and protrudes to the upper surface side of the base 10 is pointed, and this is set as the discharge end 21, and the part that protrudes to the lower surface of the base 10 is liquid Collection end 22.
- the liquid collecting end 22 is immersed in water in the water tank 50, absorbs water from the liquid collecting end 22, and transports the water to the discharge end 21 by capillary action.
- the base 10 is formed of a conductive synthetic resin, and functions as a first electrode that applies a potential to each of the capillary carriers 20.
- a terminal 12 connected to the high-voltage power supply 70 is provided on a part of the peripheral surface of the base 10.
- An electrode tube 14 protrudes from the lower surface of the base 10 into the water tank 50 so as to apply the same potential as the water in the water tank 50 and the capillary transfer body 20.
- the high-voltage power supply 70 applies, for example, a high voltage E having an electric field strength of 500 V / mm between the base 10 and the electrode plate 40, and as a result, as shown in FIG. Electrostatic atomization occurs between the discharge end 21 of the discharge electrode 21 and the electrode plate 40 that constitutes the second electrode facing the discharge end 21. Fine water is charged as charged particles from the discharge end 21 to the electrode plate. It is to be released toward 40. That is, due to the action of high voltage, the water sent from the discharge end 21 is laid-split to generate negatively charged water of charged fine particles, thereby discharging the mist of the charged fine water.
- a high voltage E having an electric field strength of 500 V / mm between the base 10 and the electrode plate 40, and as a result, as shown in FIG. Electrostatic atomization occurs between the discharge end 21 of the discharge electrode 21 and the electrode plate 40 that constitutes the second electrode facing the discharge end 21. Fine water is charged as charged particles from the discharge end 21 to the electrode plate. It is to be released toward
- the electrode plate 4 ⁇ is made of a conductive synthetic resin and has a circular outer periphery, is molded into an open shape at the center, and forms an opening edge 41 at the periphery of the center opening.
- the peripheral edge 41 is in close proximity to the discharge end 21 of each $ ffl tube carrier 2 O, and discharge is performed between the opening edge 41 and the discharge end 21.
- a terminal 48 connected to a high-voltage power supply is formed on a part of the electrode plate 40 in the circumferential direction.
- a continuous or wedge-shaped high voltage is applied between the electrode plate 40 and the base 10 from the high voltage source.
- the capillary carrier 20 is a porous ceramic having a particle diameter of 2 to 500 im and a porosity of 10 to 7%, and water is passed by a capillary action through a fine channel formed inside. Conveyed to discharge end 21.
- ceramic one of alumina, titania, zirconia, silica, and magnesium is a mixture of any combination, depending on whether the fine particles emitted from the discharge end 21 are charged positively or negatively. Still, it is still selected by the pH of the water used.
- the electrostatic atomizer of the present invention uses a capillary transporter 20 side as a negative electrode and a polar plate 40 side as a ground electrode to be negatively charged; A method of applying a voltage of + and positively charging it to release fine particles of water can be selected. To release particles of water that are negatively charged, set the equipotential point of the ceramic material to P
- the ceramic material is selected such that H is lower than the pH of the water used.
- the pH at the equipotential point of the ceramic material is shown in the table below.
- the reason for selecting the ceramic material in consideration of the pH of the water used for o is that if the water used contains mineral components such as Mg and Ca, these components will proceeds to the discharge end 21, sealed explosion from being precipitated as C0 2 and Han'asa and M gO Yu C AC0 3 in the air, but to prevent the electrostatic atomizing is impaired by the precipitation of such components is there. That is, the use of electroosmotic flow in the capillary tube prevents Mg ions and Ca ions dispersed in water from proceeding to the discharge end 21.
- Figure 4 shows the capillary transporter 20 in the case of using the capillary transporter 20 with a material whose pH at the equipotential point is lower than that of water to generate and release fine particles of negatively charged water. It shows the electroosmotic flow generated inside.
- a porous capillary carrier 20 is formed of silica
- the silanol groups are dissociated by contact with water, and the inner wall of the capillary is negatively charged. Is formed, and a positive charge is diffused thereon to form a diffusion layer, thereby forming an electric double layer.
- S in the figure indicates the slip surface in the electric double layer
- Z indicates the zeta potential.
- the pH of the water used is 10 or more, use a ceramic material whose DH at the equipotential point is 10 or less, and if the pH of the water is 7 to 10 , PH at equipotential point A ceramic material lower than 7 is used, and by combining one or more of ⁇ : the capillary ceramic carrier 20 made of a porous ceramic with the desired basket at the equipotential point is obtained. create.
- Figure 5 shows, contrary to the above example, that the brass is charged using a material whose pH at the equipotential point is higher than the 5 shows an electroosmotic flow generated inside the capillary transporter 20 when the flow is performed.
- the capillary transport body 20 is formed of magnesia
- the inner wall of the capillary is positively charged by contact with water, and an immobile layer of negative charge is formed thereon, and a negative layer is further formed thereon.
- the electric charge is diffused and a diffusion layer is formed to form an electric double layer.
- a plurality of opening windows 32 are formed on the outer peripheral wall of the cylindrical body 30.
- an air flow discharged from the central opening of the electrode plate 40 can be created.
- the charged fine particle water generated between the electrode plate 21 and the electrode plate 40 can be sent to a wide space in a misted state by being put on this air flow.
- the charged fine particle water can be obtained by using the forced air flow generated by the air purifier “! 00”.
- the air purifier 100 collects the fan 110 and dust in the eight housings 101 provided with the air suction port 120 and the air discharge port 104. It is equipped with a filter 120.
- the electrostatic atomizer M is a filter 1 20 In addition, it is arranged downstream of the fan 110 and near the air blower 104 of the air purifier 100.
- the mist of the charged particle water generated by the electrostatic atomization is reduced to about 0.02 ml / min at an electric field strength of 500 V / mm or more, with the tip diameter of the capillary carrier 20 being 0.5 mfn or less, 3 to 1 O
- Onm particle size and ultra-fine particles of nanometer size while containing active species such as hydroxyl radical, superoxide, nitric oxide radical, and oxygen radical in combination with oxygen in the air. Can be.
- active species such as hydroxyl radical, superoxide, nitric oxide radical, and oxygen radical in combination with oxygen in the air.
- Such mist of charged particle water is When released, it is possible to deodorize adhering substances adhering to the indoor walls and the like.
- the following equation is a deodorization reaction equation between the active species showing the deodorizing effect of these active species and the odor.
- Acetaldehyde CH 3 CHO + 6 ⁇ OH + 0 2 — 2C0 2 +5 H 2 0
- Applicable to atomization include water containing active ingredients such as vitamin C and amino acids, and water containing aroma oil, fragrances, deodorants, and the like, as well as, for example, colloid solutions such as cosmetic lotions.
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Public Health (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrostatic Spraying Apparatus (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003149807A JP4195989B2 (ja) | 2003-05-27 | 2003-05-27 | 静電霧化装置及びこれを備えた空気清浄機 |
JP2003-149807 | 2003-05-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004105959A1 true WO2004105959A1 (ja) | 2004-12-09 |
Family
ID=33487160
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/007594 WO2004105959A1 (ja) | 2003-05-27 | 2004-05-26 | 静電霧化装置及びこれを用いた空気清浄機 |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP4195989B2 (ja) |
TW (1) | TWI248822B (ja) |
WO (1) | WO2004105959A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106237967A (zh) * | 2016-08-31 | 2016-12-21 | 深圳市潜能环保实业有限公司 | 消毒剂混合反应装置及空气净化装置 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4925242B2 (ja) * | 2005-04-25 | 2012-04-25 | パナソニック株式会社 | 消臭装置 |
JP4534853B2 (ja) * | 2005-04-25 | 2010-09-01 | パナソニック電工株式会社 | 静電霧化装置 |
JP4551288B2 (ja) * | 2005-07-15 | 2010-09-22 | パナソニック株式会社 | 空気調和機 |
JP5338077B2 (ja) * | 2008-01-22 | 2013-11-13 | ダイキン工業株式会社 | 静電噴霧装置 |
JP4818399B2 (ja) | 2009-06-15 | 2011-11-16 | 三菱電機株式会社 | 静電霧化装置及び空気調和機 |
JP5808889B2 (ja) * | 2010-04-07 | 2015-11-10 | 株式会社ノリタケカンパニーリミテド | コアシェル粒子の製造方法 |
JP2012065979A (ja) * | 2010-09-27 | 2012-04-05 | Panasonic Corp | 機能ミスト発生装置 |
JP2012021763A (ja) * | 2011-08-22 | 2012-02-02 | Mitsubishi Electric Corp | 空気調和機 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62144774A (ja) * | 1985-12-19 | 1987-06-27 | Agency Of Ind Science & Technol | 液体の微粒化方法 |
JP2001286546A (ja) * | 2000-04-07 | 2001-10-16 | Ricoh Elemex Corp | 消臭剤噴霧装置 |
JP3260150B2 (ja) * | 1990-11-12 | 2002-02-25 | ザ プラクター アンド ギャムブル カンパニー | カートリッジおよび静電噴霧装置 |
JP2002203657A (ja) * | 2000-12-27 | 2002-07-19 | Daikin Ind Ltd | イオン発生器 |
JP2003014261A (ja) * | 2001-06-27 | 2003-01-15 | Sharp Corp | 加湿装置 |
JP2003079714A (ja) * | 2001-09-14 | 2003-03-18 | Matsushita Electric Works Ltd | 空気清浄機 |
-
2003
- 2003-05-27 JP JP2003149807A patent/JP4195989B2/ja not_active Expired - Lifetime
-
2004
- 2004-05-26 WO PCT/JP2004/007594 patent/WO2004105959A1/ja active Application Filing
- 2004-05-27 TW TW93115043A patent/TWI248822B/zh not_active IP Right Cessation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62144774A (ja) * | 1985-12-19 | 1987-06-27 | Agency Of Ind Science & Technol | 液体の微粒化方法 |
JP3260150B2 (ja) * | 1990-11-12 | 2002-02-25 | ザ プラクター アンド ギャムブル カンパニー | カートリッジおよび静電噴霧装置 |
JP2001286546A (ja) * | 2000-04-07 | 2001-10-16 | Ricoh Elemex Corp | 消臭剤噴霧装置 |
JP2002203657A (ja) * | 2000-12-27 | 2002-07-19 | Daikin Ind Ltd | イオン発生器 |
JP2003014261A (ja) * | 2001-06-27 | 2003-01-15 | Sharp Corp | 加湿装置 |
JP2003079714A (ja) * | 2001-09-14 | 2003-03-18 | Matsushita Electric Works Ltd | 空気清浄機 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106237967A (zh) * | 2016-08-31 | 2016-12-21 | 深圳市潜能环保实业有限公司 | 消毒剂混合反应装置及空气净化装置 |
CN106237967B (zh) * | 2016-08-31 | 2019-01-29 | 深圳市皓明实业有限公司 | 消毒剂混合反应装置及空气净化装置 |
Also Published As
Publication number | Publication date |
---|---|
TWI248822B (en) | 2006-02-11 |
JP2004351276A (ja) | 2004-12-16 |
TW200500104A (en) | 2005-01-01 |
JP4195989B2 (ja) | 2008-12-17 |
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