JP2021130025A - Corona discharge type air cleaner - Google Patents

Corona discharge type air cleaner Download PDF

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JP2021130025A
JP2021130025A JP2021088018A JP2021088018A JP2021130025A JP 2021130025 A JP2021130025 A JP 2021130025A JP 2021088018 A JP2021088018 A JP 2021088018A JP 2021088018 A JP2021088018 A JP 2021088018A JP 2021130025 A JP2021130025 A JP 2021130025A
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positive electrode
needle
voltage
corona discharge
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JP7217549B2 (en
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隆平 森井
Ryuhei Morii
隆平 森井
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Forest Well Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/192—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by electrical means, e.g. by applying electrostatic fields or high voltages
    • 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
    • B03C3/02—Plant or installations having external electricity supply
    • 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
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/40—Electrode constructions
    • B03C3/41—Ionising-electrodes
    • 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
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/40—Electrode constructions
    • B03C3/45—Collecting-electrodes
    • B03C3/49—Collecting-electrodes tubular
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
    • F24F8/24—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using sterilising media
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/30—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by ionisation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/80—Self-contained air purifiers
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
  • Electrostatic Separation (AREA)

Abstract

To provide a corona discharge type air cleaner having sufficient sterilization/disinfection/deodorant/dust collection effect.SOLUTION: A corona discharge type air cleaner includes a case body including an upper surface formed of titanium having an air suction port, a positive electrode configured of an exhaust hole of a plurality of slit holes or lattice holes formed on the upper surface of the case body, in which the positive electrode has a thickness of 1.5 mm, a cylindrical dust collection plate 7 suspended inside of the case body from the upper surface in the surrounding of the exhaust hole and electrolyzed to plus, and a stainless needle electrode 11 in which a plurality of negative electrodes are opposed to the lattice positive electrode and the tips of the plurality of needle electrodes 11 face the positive electrode and, a DC high voltage unit 15 that generates a DC high voltage by receiving the DC low voltage to input the DC high voltage to the plurality of needle electrodes 11, in which the thickness of the positive electrode is set to 1.5 mm.SELECTED DRAWING: Figure 4

Description

本発明は、イオン風・オゾンを発生させるコロナ放電式空気清浄装置に関し、除菌・殺菌・消臭・集塵するコロナ放電式空気清浄装置に関する。 The present invention relates to a corona discharge type air purifier that generates ionized wind and ozone, and relates to a corona discharge type air purifier that disinfects, sterilizes, deodorizes, and collects dust.

従来、コロナ放電によりイオン及びオゾンを発生させゴミ等の対象物を殺菌・消臭する装置があり、対象物の配される空間とは別空間でコロナ放電を行い、発生したイオン及びオゾンを対象物の空間に送給し、殺菌・消臭する装置がある。 Conventionally, there is a device that generates ions and ozone by corona discharge to sterilize and deodorize objects such as dust, and corona discharge is performed in a space different from the space where the objects are arranged, and the generated ions and ozone are targeted. There is a device that sends water to the space of things to sterilize and deodorize it.

しかしながら、従来のコロナ放電式の殺菌・消臭装置ではコロナ放電を利用して空気を清浄化することは出来るが、イオン風が弱く、塵を帯電して集塵を行う能力も十分ではないのが実情である。 However, although the conventional corona discharge type sterilizer / deodorizer can purify the air by using the corona discharge, the ion wind is weak and the ability to charge the dust and collect the dust is not sufficient. Is the reality.

特開２０１７ー２１７５７２JP 2017-217572

本発明は、イオン風を強くして集塵効率が強く十分な除菌・殺菌・消臭・集塵効果を有するコロナ放電式空気清浄装置を提供することを目的とする。 An object of the present invention is to provide a corona discharge type air purifier having a strong ion wind, a high dust collection efficiency, and a sufficient sterilization / sterilization / deodorization / dust collection effect.

本発明は、上記課題を達成するため、以下の殺菌・消臭・集塵用コロナ放電式空気清浄装置を提供する。
本発明に係る殺菌・消臭・集塵用コロナ放電式空気清浄装置は、
空気吸引口を有しチタンで形成された上面部を含むケース本体と、
該ケース本体の上面部に形成された複数のスリット状孔部あるいは格子状孔部の排気孔により構成されたプラス電極であって、該プラス電極は約１．５ｍｍの厚さを有するプラス
電極と、
該排気孔の周囲の該上面部からケース本体の内部に垂設されプラスに帯電する筒状の集塵板と、
該格子状プラス電極に対抗させた複数のマイナス電極のステンレス製針状電極であって、該複数の針状電極の先端部がプラス電極とを対向させられた複数の針状電極と、
直流低圧電圧を受け直流高圧電圧を発生し該複数の針状電極に直流高圧電圧を印加する直流高圧電流ユニットとからなる、コロナ放電式空気清浄装置であって、
プラス電極と該複数の針状電極との間に直流高電圧を印加することによりマイナス電極とプラス電極との間にコロナ放電を生じオゾンとイオンを発生しプラス電極へ向かってマイナスイオン風を形成し、周囲の空気をケース本体内で該排気孔に向かって巻き込み、空気中に含まれる微細な粉塵をプラスに帯電した集塵板に付着させつつ殺菌・消臭・集塵を行う放電式空気清浄装置。 The present invention provides the following corona discharge type air purifier for sterilization, deodorization, and dust collection in order to achieve the above problems.
The corona discharge type air purifier for sterilization, deodorization, and dust collection according to the present invention is
A case body that has an air suction port and includes an upper surface made of titanium,
A positive electrode composed of a plurality of slit-shaped holes or exhaust holes of a lattice-shaped hole formed on the upper surface of the case body, and the positive electrode is a positive electrode having a thickness of about 1.5 mm. ,
A tubular dust collecting plate that is vertically charged inside the case body from the upper surface around the exhaust hole and is positively charged.
A plurality of needle-shaped electrodes made of stainless steel having a plurality of negative electrodes opposed to the lattice-shaped positive electrode, and a plurality of needle-shaped electrodes having tips of the plurality of needle-shaped electrodes facing the plus electrode.
A corona discharge type air purifier consisting of a DC high-voltage current unit that receives a DC low-voltage voltage, generates a DC high-voltage voltage, and applies a DC high-voltage voltage to the plurality of needle-shaped electrodes.
By applying a high DC voltage between the positive electrode and the plurality of needle-shaped electrodes, a corona discharge is generated between the negative electrode and the positive electrode, ozone and ions are generated, and a negative ion wind is formed toward the positive electrode. Then, the surrounding air is entrained in the case body toward the exhaust hole, and the fine dust contained in the air is attached to the positively charged dust collecting plate to sterilize, deodorize, and collect the dust. Cleaning device.

本発明に係る殺菌・消臭・集塵用コロナ放電式空気清浄装置によれば、例えば７ＫＶ−８ＫＶの高電圧を印加してスリット状のチタン製プラス電極と針状電極との間にコロナ放電とオゾンを発生しプラス電極へ向かって強いマイナスイオン風を形成し、、排気孔の周囲に配置したプラスに帯電した筒状の集塵板によりマイナスに帯電した粒子を効率的に集塵するとともに、効率的にイオン流を排気孔へ導き、殺菌・消臭することを可能とする。 According to the corona discharge type air purifier for sterilization, deodorization, and dust collection according to the present invention, for example, a high voltage of 7KV-8KV is applied to corona discharge between the slit-shaped titanium plus electrode and the needle-shaped electrode. And ozone is generated to form a strong negative ion wind toward the positive electrode, and the negatively charged particles are efficiently collected by the positively charged tubular dust collector arranged around the exhaust hole. , Efficiently guides the ion flow to the exhaust holes, enabling sterilization and deodorization.

本発明に係るコロナ放電式空気清浄装置の斜視図である。It is a perspective view of the corona discharge type air purifier which concerns on this invention. 複数のスリット状孔部あるいは格子状孔部の排気孔により構成されたプラス電極を有するコロナ放電式空気清浄装置のケース本体の上面部を示す。The upper surface of the case body of the corona discharge type air purifier having a positive electrode composed of exhaust holes of a plurality of slit-shaped holes or lattice-shaped holes is shown. 本発明に係るコロナ放電式空気清浄装置の側面図である。It is a side view of the corona discharge type air purifier which concerns on this invention. 本発明に係るコロナ放電式空気清浄装置の内部構造を示す模式図である。It is a schematic diagram which shows the internal structure of the corona discharge type air purifier which concerns on this invention. ケース本体内部に配置され上面に針状電極を立設するための針状電極取付板を示す図である。It is a figure which shows the needle-shaped electrode mounting plate which is arranged in the case main body, and for erected the needle-shaped electrode on the upper surface. 針状電極取付板の下面に形成され上面に立設した針状電極に導通する導電性パターンである。It is a conductive pattern formed on the lower surface of the needle-shaped electrode mounting plate and conducting to the needle-shaped electrode erected on the upper surface. ゼラチンフィルタの生菌数測定結果を示す。The result of measuring the viable cell count of the gelatin filter is shown. 自然減衰の場合の浮遊粒子数の測定結果を示す。The measurement result of the number of suspended particles in the case of natural attenuation is shown. 検体作動の場合の浮遊粒子数の測定結果を示す。The measurement result of the number of suspended particles in the case of sample operation is shown. Ｃｒｙｊｌ濃度測定結果を示す。The Cryjl concentration measurement result is shown. 自然減衰の場合の測定中の浮遊粒子数の測定結果を示す。The measurement result of the number of suspended particles during the measurement in the case of natural attenuation is shown. 検体作動の場合の測定中の浮遊粒子数の測定結果を示す。The measurement result of the number of suspended particles during the measurement in the case of sample operation is shown. アンモニアについての試験結果を示す。The test results for ammonia are shown. 硫化水素についての試験結果を示す。The test results for hydrogen sulfide are shown. タバコ粉塵除去性能試験結果を示す。The results of the tobacco dust removal performance test are shown.

以下に、本発明を実施するための形態を図面を参照して説明する。これらの実施態様は本発明を説明するための例示であり、本発明をそれらの実施態様に限定して解釈してはならない。請求項に定義する発明に入るものは、特に矛盾がなければ全て本発明に属する。 Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. These embodiments are examples for explaining the present invention, and the present invention should not be construed as being limited to those embodiments. Anything that falls under the invention defined in the claims belongs to the present invention unless there is a particular contradiction.

図１は、本発明の一実施態様に係る殺菌・消臭・集塵用コロナ放電式空気清浄装置１を示す。空気清浄装置１は正方体形状を有し、上面部４に複数の平行な６本のスリット２を有する円形の排気孔３からなるプラス電極を設け、上面部４の外周は正方形状の４つの側面で囲われている。側面５−１、５−２の上方部には３列の吸気口６が設けられ、側面５−１の下方部には空気清浄装置をＯＮ／ＯＦＦするスイッチＳＷが設けられている。図１及び図３参照。本実施態様では空気清浄装置本体を正方体形状としたが、上面部４に複数の平行なスリット状の円形の排気孔３を設けることが出来るのであれば、空気清浄装置本体の形状は正方体形状に限らない。空気清浄装置本体を別体のカバーで覆う場合には本体強度に支障がでなければ、１つあるいは２つの側面を省略することも可能である。 FIG. 1 shows a corona discharge type air purifier 1 for sterilization, deodorization, and dust collection according to an embodiment of the present invention. The air purifier 1 has a rectangular shape, is provided with a positive electrode composed of a circular exhaust hole 3 having a plurality of parallel six slits 2 on the upper surface portion 4, and the outer periphery of the upper surface portion 4 is provided with four square side surfaces. It is surrounded by. Three rows of intake ports 6 are provided above the side surfaces 5-1 and 5-2, and a switch SW for turning on / off the air purifier is provided below the side surfaces 5-1. See FIGS. 1 and 3. In this embodiment, the main body of the air purifier has a cubic shape, but if a plurality of parallel slit-shaped circular exhaust holes 3 can be provided on the upper surface portion 4, the shape of the main body of the air purifier has a cubic shape. Not exclusively. When the main body of the air purifier is covered with a separate cover, one or two sides can be omitted as long as the strength of the main body is not hindered.

本発明に係る殺菌・消臭・集塵用コロナ放電式空気清浄装置では、プラス電極の厚さを好ましくは１．５ｍｍとすることにより、後述のイオン風を強くすることができ、効率的に集塵、殺菌・消毒を行うことが可能となる。また、オゾン酸化による劣化を防止するため、空気清浄装置本体の少なくとも上面部、好ましくは空気清浄装置本体全体をチタンから形成する。 In the corona discharge type air purifier for sterilization, deodorization, and dust collection according to the present invention, the ion wind described later can be strengthened efficiently by setting the thickness of the positive electrode to preferably 1.5 mm. It is possible to collect dust, sterilize and disinfect. Further, in order to prevent deterioration due to ozone oxidation, at least the upper surface portion of the air purifier main body, preferably the entire air purifier main body is formed of titanium.

図２は、複数の平行な６本の長短のスリット２からなる円形の排気孔３をほぼ中央に設けた上面部４を示す。本発明のコロナ放電式空気清浄装置では、複数の平行なスリットに代えて、タテ及びヨコに格子状とした格子形状の排気孔としてもよい。図４に示すように排気孔の周囲にからケース本体の内部に筒状の集塵板７が垂設され、集塵板はプラスに帯電しマイナスイオンに帯電した花粉等の微粒子を集塵できるようになっている。詳細には図示していないが、上面部４は空気清浄装置本体からビス等で取り外し可能となっており、筒状の集塵板７も上面部４から取り外し可能となっており集塵した花粉等の塵粒子を除去できるようになっている。 FIG. 2 shows an upper surface portion 4 provided with a circular exhaust hole 3 composed of a plurality of parallel six long and short slits 2 substantially in the center. In the corona discharge type air purifier of the present invention, instead of a plurality of parallel slits, a grid-shaped exhaust hole having a vertical and horizontal grid pattern may be used. As shown in FIG. 4, a tubular dust collecting plate 7 is vertically installed inside the case body from around the exhaust hole, and the dust collecting plate can collect fine particles such as pollen charged with positive charges and negative ions. It has become like. Although not shown in detail, the upper surface portion 4 can be removed from the main body of the air purifier with a screw or the like, and the tubular dust collecting plate 7 can also be removed from the upper surface portion 4 to collect dust. It is possible to remove dust particles such as.

図４は、コロナ放電式空気清浄装置の内部構造を示し、図５は針状電極取付板８の上面であり、図６は針状電極取付板８の上面に均等に配置した２１個の針状電極取付位置９に導通する導電性パターン１０である。図４に示すように、針状電極取付板８の針状電極取付位置９には針状電極１１の基部が半田等によって固定され、先端部は筒状の集塵板７の内方に延び上面部４円形の排気孔３と所望の距離で対向させられており、針状電極取付板８は空気清浄装置１の底板に支持脚１２によって支持されている。 FIG. 4 shows the internal structure of the corona discharge type air purifier, FIG. 5 shows the upper surface of the needle-shaped electrode mounting plate 8, and FIG. 6 shows 21 needles evenly arranged on the upper surface of the needle-shaped electrode mounting plate 8. The conductive pattern 10 is conductive to the shape electrode mounting position 9. As shown in FIG. 4, the base of the needle-shaped electrode 11 is fixed to the needle-shaped electrode mounting position 9 of the needle-shaped electrode mounting plate 8 by solder or the like, and the tip portion extends inward of the tubular dust collecting plate 7. The upper surface portion 4 is opposed to the circular exhaust hole 3 at a desired distance, and the needle-shaped electrode mounting plate 8 is supported by the support legs 12 on the bottom plate of the air purifier 1.

図４において、１３は外部電源端子、１４は１００Ｖの交流電圧を１２Ｖ程度の直流電圧に変えるアダプターであり、１５は１２Ｖ等の直流電圧を７ＫＶ−８ＫＶの高圧電圧に変える変圧器であり、高圧電圧は導電性パターン１０を介して針状電極取付位置９の針状電極１１に印加される。
該複数の針状マイナス電極と排気孔からなるプラス電極との間に高電圧を印加することによって、ケース本体の排気孔と該複数の針状電極の先端部との間にコロナ放電を発生し、イオン及びオゾンを発生させるとともにプラス電極へ向かってマイナスイオン風を形成し、周囲の空気をケース本体内で該排気孔に向かって巻き込み、空気中に含まれる微細な粉塵をプラス電極の集塵板に付着させ、殺菌・消毒することが可能となっている。 In FIG. 4, 13 is an external power supply terminal, 14 is an adapter that changes an AC voltage of 100 V to a DC voltage of about 12 V, and 15 is a transformer that changes a DC voltage such as 12 V to a high voltage of 7 KV-8 KV. The voltage is applied to the needle-shaped electrode 11 at the needle-shaped electrode mounting position 9 via the conductive pattern 10.
By applying a high voltage between the plurality of needle-shaped negative electrodes and the positive electrode composed of the exhaust holes, a corona discharge is generated between the exhaust holes of the case body and the tips of the plurality of needle-shaped electrodes. , Ions and ozone are generated and a negative ion wind is formed toward the positive electrode, the surrounding air is entrained in the case body toward the exhaust hole, and fine dust contained in the air is collected by the positive electrode. It can be attached to a board to sterilize and disinfect it.

本発明に係る以下のコロナ放電式空気清浄装置について、下記の空気清浄性能試験を行った。２、３、４については、一般財団法人日本食品分析センター彩都研究所（大阪府茨木彩都あさぎ７町目４番４１号）において実施された。
１．浮遊細菌に対する除去性能評価試験（表皮ブドウ球菌）
２．花粉除去性能評価試験
３．脱臭効果試験（アンモニア及び硫化水素） The following air cleaning performance test was performed on the following corona discharge type air purifying device according to the present invention. Regarding 2, 3 and 4, it was carried out at the Saito Research Institute of the Japan Food Research Laboratories (Saito Asagi, 7th Town, Osaka Prefecture, 4-41).
1. 1. Removal performance evaluation test for airborne bacteria (Staphylococcus epidermidis)
2. Pollen removal performance evaluation test
3. 3. Deodorizing effect test (ammonia and hydrogen sulfide)

検体（試験した本発明に係るコロナ放電式空気清浄装置）
１．コロナ放電式空気清浄装置
（１）ケース外寸 １０ｃｍｘ１０ｃｍｘ１０ｃｍ立法形状
（２）ケース壁厚 １．５ｍｍ
（３）ケース材質 チタン
（４）円形排気孔 直径７０ｍｍの排気孔に均等間隔で設けられた平行なスリット（スリット８ｍｍ幅、スリット間距離４ｍｍ）
（５）円筒状集塵板 直径７０ｍｍ、高さ１０ｍｍ
（６）針状マイナス電極２１本、排気孔に対応して等間隔に配置、
針状電極とプラス電極との距離８ｍｍ〜１０ｍｍ（図４参照）
（７）アダプター（交流電圧をＤＣ１２Ｖと変換）
（８）高圧変圧器（ＤＣ１２Ｖを高圧電７０００−８０００Ｖに変圧）
（９）針状電極用導電パターン（図６参照） Specimen (tested corona discharge type air purifier according to the present invention)
1. 1. Corona discharge type air purifier (1) Case outer dimensions 10 cm x 10 cm x 10 cm cubic shape (2) Case wall thickness 1.5 mm
(3) Case material Titanium (4) Circular exhaust holes Parallel slits provided at equal intervals in exhaust holes with a diameter of 70 mm (slit 8 mm width, distance between slits 4 mm)
(5) Cylindrical dust collecting plate Diameter 70 mm, height 10 mm
(6) 21 needle-shaped negative electrodes, arranged at equal intervals corresponding to the exhaust holes,
Distance between needle-shaped electrode and positive electrode 8 mm to 10 mm (see Fig. 4)
(7) Adapter (converts AC voltage to DC12V)
(8) High-voltage transformer (transforms DC12V to high-voltage 7000-8000V)
(9) Conductive pattern for needle-shaped electrodes (see FIG. 6)

１．浮遊細菌に対する除去性能評価試験（ブドウ球菌）
（１）試験概要
一般社団法人日本電機工業会 ＪＥＭ１４６７ 家庭用空気清浄機（２０１５年３月２５日改正）付属書Ｄ（規定）「浮遊ウイルスに対する除去性能評価試験」を参考にして試験を行った。ただし、試験微生物は以下に示す菌株を用い、培養条件を変更して実施した。Staphylococcus epidermidis NBRC １２９９３（表皮ブドウ球菌）。測定条件を、表１に示し、測定開始時及び終了時の温湿度を表２に示す。

Figure 2021130025
1. 1. Removal performance evaluation test for airborne bacteria (Staphylococcus)
(1) Outline of the test The test was conducted with reference to Appendix D (regulation) "Evaluation test for removal performance against airborne viruses" of the Japan Electric Industry Association JEM1467 household air purifier (revised on March 25, 2015). .. However, the test microorganisms used were the strains shown below, and the culture conditions were changed. Staphylococcus epidermidis NBRC 12993 (Staphylococcus epidermidis). The measurement conditions are shown in Table 1, and the temperature and humidity at the start and end of the measurement are shown in Table 2.
Figure 2021130025

Figure 2021130025
（２）測定結果
ゼラチンフィルタの生菌数測定結果を、図７に示し、自然減衰と検体作動の場合の浮遊粒子数の測定結果を図８と図９にそれぞれ示す。
図７，８，９から分かるように、ブドウ球菌の数は、自然減衰による減少に比較して、検体を作動させることによって大幅に減少することが分かり、本コロナ放電式空気清浄装置は空気中に浮遊する細菌（ブドウ球菌）に対する除去性能は非常に高いことが判明した。
Figure 2021130025
 (2) Measurement results The measurement results of the viable cell count of the gelatin filter are shown in FIG. 7, and the measurement results of the number of suspended particles in the case of natural attenuation and sample operation are shown in FIGS. 8 and 9, respectively.
As can be seen from FIGS. 7, 8 and 9, the number of staphylococci is significantly reduced by activating the sample as compared with the decrease due to natural attenuation, and this corona discharge type air purifier is in the air. It was found that the removal performance against bacteria (staphylococci) floating in the air is very high.

２．花粉除去性能評価試験
（１）試験概要
一般社団法人日本電機工業会 ＪＥＭ１４６７ 家庭用空気清浄機（２０１５年３月２５日改正）付属書Ｄ（規定）「浮遊ウイルスに対する除去性能評価試験」を参考にして試験を行った。ただし、試験対象物はスギ花粉抽出物を用い、試験条件を変更して実施した。試験条件を表３に示し、試験開始時及び終了時の温湿度を表４に示す。

Figure 2021130025
2. Pollen removal performance evaluation test (1) Test outline General Incorporated Association Japan Electric Industry Association JEM1467 Household air purifier (revised on March 25, 2015) Annex D (regulation) Refer to "Removal performance evaluation test for airborne viruses" The test was conducted. However, the test object was a cedar pollen extract, and the test conditions were changed. The test conditions are shown in Table 3, and the temperature and humidity at the start and end of the test are shown in Table 4.
Figure 2021130025

Figure 2021130025
（２）測定結果
Ｃｒｙｊｌ濃度測定結果を、図１０に示す。また、自然減衰と検体作動の場合の測定中の浮遊粒子数の測定結果を図１１と図１２にそれぞれ示す。
図１０，１１、１２から分かるように、浮遊花粉粒子の数は、自然減衰による減少に比較して、検体を作動させることによって大幅に減少することが分かり、本コロナ放電式空気清浄装置は空気中に浮遊する花粉粒子に対する除去性能は非常に高いことが判明した。
Figure 2021130025
 (2) Measurement result The Cryjl concentration measurement result is shown in FIG. In addition, the measurement results of the number of suspended particles during the measurement in the case of natural attenuation and sample operation are shown in FIGS. 11 and 12, respectively.
As can be seen from FIGS. 10, 11 and 12, the number of suspended pollen particles is significantly reduced by operating the sample as compared with the decrease due to natural attenuation, and this corona discharge type air purifier is air. It was found that the removal performance for pollen particles floating inside was very high.

３．脱臭効果試験（アンモニア及び硫化水素）
（１）試験概要
検体についてアンモニア及び硫化水素の脱臭効果をガス検知管法により試験した。
（２）試験方法
ａ）試薬及び器具
デシケータ（約１０９Ｌ）［Ｆｉｎｅ］
アンモニア：アンモニア水（２８％、特級）（小宗化学薬品株式会社）から発生させたガスを用いた。
硫化水素：硫化鉄（ＩＩ）（硫化水素発生用）（小宗化学薬品株式会社）に希硫酸を加えて発生させたガスを用いた。
ガス検知管（株式会社 ガステック）
ｂ）操作
検体をかくはんファンとともにデシケータ（約１０９Ｌ）に入れ、かくはんファンを作動させ設定したガス濃度となるように試験対象ガスを添加した。かくはんファンを停止し、検体を作動させ、経過時間ごとにデシケータ内のガス濃度をガス検出管で測定した。また、検体を作動させずに同様な操作を行った。検体を入れずに同様な操作をしたものを空試験とした。試験条件を表５に示した。 3. 3. Deodorizing effect test (ammonia and hydrogen sulfide)
(1) Outline of the test The deodorizing effect of ammonia and hydrogen sulfide was tested on the sample by the gas detector tube method.
(2) Test method a) Reagents and instruments Desiccator (approx. 109 L) [Fine]
Ammonia: Gas generated from ammonia water (28%, special grade) (Kosou Chemical Co., Ltd.) was used.
Hydrogen sulfide: A gas generated by adding dilute sulfuric acid to iron (II) sulfide (for hydrogen sulfide generation) (Kosou Chemical Co., Ltd.) was used.
Gas detector tube (Gas Tech Co., Ltd.)
b) Operation The sample was placed in a desiccator (about 109 L) together with the stirring fan, the stirring fan was operated, and the gas to be tested was added so as to obtain the set gas concentration. The stirring fan was stopped, the sample was operated, and the gas concentration in the desiccator was measured with a gas detector tube for each elapsed time. In addition, the same operation was performed without operating the sample. A blank test was obtained by performing the same operation without inserting a sample. The test conditions are shown in Table 5.

Figure 2021130025
（３）試験結果
アンモニアの試験結果を図１３に示し、硫化水素の試験結果を図１４に示す。
図１３から分かるように、アンモニア脱臭については検体を作動させることによってアンモニア除臭効果が高いことが分かり、図１４から硫化水素に対する除去性能は非常に高いことが判明した。
Figure 2021130025
 (3) Test Results The test results of ammonia are shown in FIG. 13, and the test results of hydrogen sulfide are shown in FIG.
As can be seen from FIG. 13, it was found that the ammonia deodorizing effect was high by operating the sample for ammonia deodorization, and it was found from FIG. 14 that the removal performance for hydrogen sulfide was very high.

４．タバコ粉塵除去性能評価試験
タバコ粉塵除去性能評価試験を以下の通り行ない、サイズ幅750×奥350×高300ｍｍの密封箱中に、タバコ１本を着火し完全燃焼するまで放置後測定開始し、3分毎にタバコ粉塵濃度を測定した。試験機として、柴田科学株式会社製「デジタル粉塵計 Ｐ−５Ｈ」を用いた。タバコ粉塵除去性能の試験結果データを図１５に示す。
タバコ粉塵除去性能の試験結果データから分かる通り、自然減衰させた場合３０分間タバコ粉塵濃度はほとんど低下しなかったのに対し、本発明に係る空気清浄装置を用いた場合には１２分後には非常に低レベルまでタバコ粉塵濃度が低下することが判明した。 4. Tobacco dust removal performance evaluation test Tobacco dust removal performance evaluation test was conducted as follows, and measurement was started after igniting one cigarette in a sealed box with a size width of 750 x depth 350 x height 300 mm and leaving it to burn completely. Tobacco dust concentration was measured every minute. As a testing machine, "Digital Dust Meter P-5H" manufactured by Sibata Scientific Technology Co., Ltd. was used. The test result data of the tobacco dust removal performance is shown in FIG.
As can be seen from the test result data of the tobacco dust removal performance, the tobacco dust concentration hardly decreased for 30 minutes when naturally attenuated, whereas it was extremely low after 12 minutes when the air purifier according to the present invention was used. It was found that the tobacco dust concentration decreased to a low level.

本発明に係るコロナ放電式空気清浄装置は、浮遊細菌除去性能、花粉除去性能、脱臭効果（アンモニア及び硫化水素）、タバコ粉塵除去性能等の集塵・殺菌・消毒性能に優れているので、産業上利用可能性が大きい。 The corona discharge type air purifier according to the present invention is excellent in dust collecting / sterilizing / disinfecting performance such as airborne bacteria removing performance, pollen removing performance, deodorizing effect (ammonia and hydrogen sulfide), and tobacco dust removing performance. Greater availability.

１・・・コロナ放電式空気清浄装置、
２・・・スリット、
３・・・排気孔（プラス電極）、
４・・・上面部、
５−１，５−２・・・側面、
６・・・吸気口、
７・・・集塵板、
８・・・針状電極取付板、
９・・・針状電極取付位置、
１０・・・導電性パターン、
１１・・・針状電極、
１２・・・支持脚、
１３・・・外部電源端子、
１４・・・直流電圧アダプター、
１５・・・変圧器、
ＳＷ・・・ＯＮ／ＯＦＦスイッチ
1 ... Corona discharge type air purifier,
2 ... Slit,
3 ... Exhaust hole (plus electrode),
4 ... Top surface,
5-1, 5-2 ... Side,
6 ... Intake port,
7 ... Dust collector,
8 ... Needle-shaped electrode mounting plate,
9 ... Needle-shaped electrode mounting position,
10 ... Conductive pattern,
11 ... Needle-shaped electrode,
12 ... Support legs,
13 ... External power supply terminal,
14 ... DC voltage adapter,
15 ... Transformer,
SW ・ ・ ・ ON / OFF switch

Claims (1)

空気吸引口を有しチタンで形成された上面部を含むケース本体と、
該ケース本体の上面部に形成された複数のスリット状孔部あるいは格子状孔部の排気孔により構成されたプラス電極であって、該プラス電極は約１．５ｍｍの厚さを有するプラス
電極と、
該排気孔の周囲の該上面部からケース本体の内部に垂設されプラスに帯電する筒状の集塵板と、
該格子状プラス電極に対抗させた複数のマイナス電極のステンレス製針状電極であって、該複数の針状電極の先端部がプラス電極とを対向させられた複数の針状電極と、
直流低圧電圧を受け直流高圧電圧を発生し該複数の針状電極に直流高圧電圧を印加する直流高圧電流ユニットとからなる、コロナ放電式空気清浄装置であって、
プラス電極と該複数の針状電極との間に直流高電圧を印加することによりマイナス電極とプラス電極との間にコロナ放電を生じオゾンとイオンを発生しプラス電極へ向かってマイナスイオン風を形成し、周囲の空気をケース本体内で該排気孔に向かって巻き込み、空気中に含まれる微細な粉塵をプラスに帯電した集塵板に付着させつつ殺菌・消臭を行う空気清浄装置。 A case body that has an air suction port and includes an upper surface made of titanium,
A positive electrode composed of a plurality of slit-shaped holes or exhaust holes of a lattice-shaped hole formed on the upper surface of the case body, and the positive electrode is a positive electrode having a thickness of about 1.5 mm. ,
A tubular dust collecting plate that is vertically charged inside the case body from the upper surface around the exhaust hole and is positively charged.
A plurality of needle-shaped electrodes made of stainless steel having a plurality of negative electrodes opposed to the lattice-shaped positive electrode, and a plurality of needle-shaped electrodes having tips of the plurality of needle-shaped electrodes facing the plus electrode.
A corona discharge type air purifier consisting of a DC high-voltage current unit that receives a DC low-voltage voltage, generates a DC high-voltage voltage, and applies a DC high-voltage voltage to the plurality of needle-shaped electrodes.
By applying a high DC voltage between the positive electrode and the plurality of needle-shaped electrodes, a corona discharge is generated between the negative electrode and the positive electrode, ozone and ions are generated, and a negative ion wind is formed toward the positive electrode. An air purifier that entrains the surrounding air toward the exhaust hole inside the case body and sterilizes and deodorizes it while adhering fine dust contained in the air to the positively charged dust collecting plate.
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