JPH11267183A - Disinfecting apparatus and method utilizing high voltage - Google Patents
Disinfecting apparatus and method utilizing high voltageInfo
- Publication number
- JPH11267183A JPH11267183A JP10077816A JP7781698A JPH11267183A JP H11267183 A JPH11267183 A JP H11267183A JP 10077816 A JP10077816 A JP 10077816A JP 7781698 A JP7781698 A JP 7781698A JP H11267183 A JPH11267183 A JP H11267183A
- Authority
- JP
- Japan
- Prior art keywords
- high voltage
- discharge
- sterilization
- side electrode
- electrodes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、食品、医薬品、
漢方薬品、化粧品、飼料、肥料などの固型物全般に適用
可能であって、特に加熱不適な食品には最適に適用でき
る高電圧を利用した殺菌装置および殺菌方法に関するも
のである。TECHNICAL FIELD The present invention relates to foods, pharmaceuticals,
The present invention relates to a sterilization apparatus and a sterilization method using a high voltage that can be applied to solid products such as Chinese medicine, cosmetics, feed, and fertilizer, and can be optimally applied to foods that are not suitable for heating.
【０００２】[0002]
【従来の技術】従来、食品の殺菌方法としては加熱殺菌
が一般的に行われている。しかし加熱殺菌では、成分、
香り、味、色等の変質、有効成分の逸散等を伴い、食品
そのものの品質を低下させる問題があった。食品を過熱
水蒸気に接触させて殺菌する方法（特公昭６３−５０９
８４号公報）が提案されているが、香り成分の飛散や水
蒸気の食品への浸透などによる品質の変化や劣化が起こ
り易いなどの問題があった。米の殺菌・殺虫には臭化メ
チルによるくん蒸が行われてきた。しかし、臭化メチル
は、引火しやすく危険物に指定されていることや、劇物
にも指定され、皮膚に触れると水泡を生じるなど安全性
に問題がある上、その高いオゾン破壊の潜在性により大
気中に放出されて地球上空のオゾン層に到達すると、オ
ゾン層を破壊する問題がある。一方、オゾンによる殺菌
も行われてるが、殺菌効果が不満足であるという問題が
あり、また、カビの増加を抑えるため、低温貯蔵（例え
ば、１５℃、７０〜７５％ＲＨ）が行われているが、長
期低温貯蔵ではカビの増加が懸念される。2. Description of the Related Art Conventionally, heat sterilization is generally performed as a method of sterilizing food. However, in heat sterilization, the ingredients,
There is a problem in that the quality of the food itself is deteriorated due to deterioration of fragrance, taste, color and the like, dissipation of active ingredients, and the like. Method of sterilizing food by contacting it with superheated steam (Japanese Patent Publication No. 63-509)
No. 84) has been proposed, but there has been a problem that the quality is easily changed or deteriorated due to scattering of the scent component or penetration of water vapor into the food. Fumigation with methyl bromide has been used to kill and kill rice. However, methyl bromide is easily flammable and is designated as a dangerous substance, and it is also designated as a harmful substance. When it is released into the atmosphere and reaches the ozone layer above the earth, there is a problem that the ozone layer is destroyed. On the other hand, sterilization with ozone is also performed, but there is a problem that the sterilization effect is unsatisfactory, and low-temperature storage (for example, 15 ° C., 70 to 75% RH) is performed to suppress an increase in mold. However, long-term cold storage may increase mold.
【０００３】[0003]
【発明が解決しようとする課題】玄米の貯蔵中、微生
物、特にカビなどが増加すると、最悪時には、商品価値
を消失させ、食用不適となる。また、米に付着している
芽胞菌は、炊飯時にさえ死滅することは期待できない。
一方、食品の中には加熱殺菌が不適なものがあり、例え
ば、日本人の主食の米は加熱殺菌も薬剤処理も適さな
い。本発明の目的は、食品、医薬品、漢方薬品、化粧
品、飼料、肥料などの殺菌対象物が本来有する香味、風
味、薬効、性能、分散性などの品質を損なわずに、米に
付着している芽胞菌などを含む各種菌を常温、常圧下で
容易に効率よく殺菌して低菌数にすることができ、前処
理および／または後処理が不要であり、安全性が高く、
オゾン層破壊の問題がない殺菌装置および殺菌方法を提
供することである。If the number of microorganisms, especially mold, increases during the storage of brown rice, in the worst case, the commercial value is lost and the rice becomes unsuitable for food. Also, spores attached to rice cannot be expected to die even during cooking.
On the other hand, some foods are unsuitable for heat sterilization. For example, Japanese staple rice is not suitable for heat sterilization or chemical treatment. The object of the present invention is to adhere to rice without impairing the qualities such as foods, pharmaceuticals, herbal medicines, cosmetics, feed, fertilizers and the like originally having a flavor, flavor, medicinal effect, performance, dispersibility, etc. Various bacteria including spores and the like can be easily and efficiently sterilized at normal temperature and pressure under low pressure to reduce the number of bacteria, and no pre-treatment and / or post-treatment is required, and the safety is high.
An object of the present invention is to provide a sterilizing apparatus and a sterilizing method that do not have a problem of depletion of the ozone layer.
【０００４】[0004]
【課題を解決するための手段】本発明者等は、従来の問
題を解決するために鋭意研究した結果、高交流電圧ある
いは高電圧をパルス的に印加した放電側電極と接地側電
極間に殺菌対象物を介在させて、常温、常圧下、殺菌に
適する湿度に制御された雰囲気中で前記電極間でパルス
ストリーマ放電を発生させることにより芽胞菌などを含
む各種菌を容易に効率的に経済的に殺菌できることを見
出し、この発明を完成するに到った。Means for Solving the Problems The inventors of the present invention have conducted intensive studies to solve the conventional problems, and as a result, sterilization has been performed between the discharge side electrode and the ground side electrode to which a high AC voltage or a high voltage is applied in a pulsed manner. By interposing an object, at room temperature, under normal pressure, by generating a pulse streamer discharge between the electrodes in an atmosphere controlled at a humidity suitable for sterilization, various bacteria including spores and the like can be easily and efficiently and economically economically produced. The present inventors have found that the present invention can be sterilized, and have completed the present invention.
【０００５】上記課題を解決するため請求項１の発明
は、高電圧を発生する電源部と、発生した高電圧を印加
する放電側電極と接地側電極を有する処理装置と、この
処理装置内の湿度を制御するための調湿手段とを備えた
殺菌装置であって、前記処理装置の前記電極間に殺菌対
象物を介在させて、前記電極間でパルスストリーマ放電
が発生させらることを特徴とする高電圧を利用した殺菌
装置である。本発明においては、前記電極間でパルスス
トリーマ放電を発生させることにより各種菌を殺菌す
る。放電側電極に、立ち上がり時間数１０ｎＳ（ナノ
秒）、持続時間１μＳ（マイクロ秒）程度以下のパルス
高電圧を印加すると、放電側電極から線状に伸びるスト
リーマー放電が発生し、電極間の広い範囲をプラズマ化
でき、前記電極間に介在させた殺菌対象物を殺菌でき
る。直流電圧印加時のコロナ放電では放電側電極のごく
近傍が発光するのみであるが、パルスストリーマ放電で
ははるかに広い領域をプラズマ化できる。これは、パル
スストリーマ放電では直流コロナ放電でのスパーク電圧
より高い電圧が瞬間的に印加でき高電界領域を広くでき
ること、また直流コロナではイオン空間電荷により放電
側電極近傍の電離域の電界強度が低下するため放電が抑
制されるが、パルスストリーマ放電では電圧の立ち上が
りが急峻なため空間電荷電界による放電抑制がわずかで
あることなどによるものと考えられる。[0005] In order to solve the above-mentioned problems, an invention according to claim 1 comprises a power supply unit for generating a high voltage, a processing apparatus having a discharge-side electrode and a ground-side electrode for applying the generated high voltage, and A sterilization apparatus including a humidity control means for controlling humidity, wherein a pulse streamer discharge is generated between the electrodes by interposing a sterilization target between the electrodes of the processing apparatus. It is a sterilization device using a high voltage. In the present invention, various bacteria are sterilized by generating a pulse streamer discharge between the electrodes. When a pulse high voltage having a rise time of about 10 nS (nanosecond) and a duration of about 1 μS (microsecond) or less is applied to the discharge-side electrode, a streamer discharge linearly extending from the discharge-side electrode is generated, and a wide range between the electrodes is formed. Can be turned into plasma, and the object to be sterilized interposed between the electrodes can be sterilized. In a corona discharge when a DC voltage is applied, only a light near the discharge side electrode emits light, but in a pulse streamer discharge, a much wider area can be turned into plasma. This is because in pulse streamer discharge, a voltage higher than the spark voltage in DC corona discharge can be applied instantaneously and the high electric field region can be widened, and in DC corona, the electric field intensity in the ionization region near the discharge side electrode decreases due to ion space charge. It is considered that the discharge is suppressed by the pulse streamer discharge, but the rise of the voltage is steep in the pulse streamer discharge, so that the discharge is slightly suppressed by the space charge electric field.
【０００６】上記課題を解決するため請求項２の発明
は、高電圧を発生する電源部で発生した高電圧を印加す
る放電側電極と接地側電極を有する処理装置中におい
て、高電圧を印加した前記電極間に殺菌対象物を介在さ
せて、常温、常圧下、殺菌に適する湿度に制御された雰
囲気中で前記電極間でパルスストリーマ放電を発生させ
ることにより殺菌することを特徴とする殺菌方法であ
る。According to a second aspect of the present invention, a high voltage is applied in a processing apparatus having a discharge side electrode for applying a high voltage generated by a power supply for generating a high voltage and a ground side electrode. A sterilization method characterized by interposing an object to be sterilized between the electrodes, at room temperature, under normal pressure, sterilizing by generating a pulse streamer discharge between the electrodes in an atmosphere controlled at a humidity suitable for sterilization. is there.
【０００７】[0007]
【発明の実施の形態】以下、図面を参照して本発明の一
実施形態について説明する。図１は、本実施形態におけ
る高電圧を利用した殺菌装置の概要を示す構成図であ
る。図１において、本発明の殺菌装置１は、高電圧を発
生する電源部２と、発生した高電圧を印加する放電側電
極（例えばステンレス製電極）３と接地側電極４を有す
る処理装置５と、この処理装置５内の湿度を制御するた
めの調湿手段５１とを備えている。電源部２において、
電源２１（ＡＣ２００Ｖ、５０Ｈｚ）から入力された電
圧をスライダック２２および高電圧トランス２３にて昇
圧し、全波整流ブリッジ２４にて整流する。その後、低
抗２５にて電流値を下げ、コンデンサ２６を充電する。
コンデンサ２６に充電された電気エネルギーは、ギャッ
プ２７を通して瞬間的に放電され、パルス電圧となって
処理槽５の放電側電極３と接地側電極４間に印加され
る。２８は抵抗、２９は接地手段である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram illustrating an outline of a sterilization apparatus using a high voltage according to the present embodiment. In FIG. 1, a sterilization apparatus 1 of the present invention includes a power supply unit 2 for generating a high voltage, a processing apparatus 5 having a discharge-side electrode (for example, a stainless steel electrode) 3 for applying the generated high voltage, and a ground-side electrode 4. And humidity control means 51 for controlling the humidity in the processing apparatus 5. In the power supply unit 2,
A voltage input from a power supply 21 (200 V AC, 50 Hz) is boosted by a slide buck 22 and a high-voltage transformer 23 and rectified by a full-wave rectification bridge 24. Thereafter, the current value is reduced by the low resistance 25, and the capacitor 26 is charged.
The electric energy charged in the capacitor 26 is discharged instantaneously through the gap 27 and is applied as a pulse voltage between the discharge electrode 3 and the ground electrode 4 of the processing tank 5. 28 is a resistor and 29 is a grounding means.
【０００８】図２は、図１に示した処理装置５の説明図
である。処理装置５中の接地側電極４の上にセラミック
板（Ａｌ2 Ｏ3 ）６が配設されており、このセラミック
板６の上に殺菌対象物（例えば、玄米）が置かれる。FIG. 2 is an explanatory diagram of the processing device 5 shown in FIG. A ceramic plate (Al 2 O 3 ) 6 is disposed on the ground electrode 4 in the processing device 5, and an object to be sterilized (for example, brown rice) is placed on the ceramic plate 6.
【０００９】上述したように放電側電極３と接地側電極
４間に殺菌対象物を介在させ、調湿手段５１を作動させ
て処理装置５中の雰囲気を殺菌に適する湿度に制御した
本発明の殺菌装置１において、電源部２において発生し
た高電圧は、パルス電圧（例えば、エネルギー波を１秒
間に約１００回発生させる）となって処理槽５の放電側
電極３と接地側電極４間に印加され、常温、常圧下、放
電側電極３と接地側電極４間でパルスストリーマ放電を
発生させることにより殺菌が行われる。放電側電極３と
接地側電極４の形状、大きさなど、印加電圧、パルス
数、投入エナルギー（ｃａｌ／ｃｍ3 ）、電界強度など
は殺菌対象物の種類、形態、菌の種類、形態などによっ
て異なるので特に限定されず、殺菌対象物が本来有する
香味、風味、薬効、性能、分散性などの品質を損なわな
い範囲において充分に殺菌できるように、適宜選定して
決めるのが好ましい。放電側電極３と接地側電極４の形
状の具体例としては、放電側電極３が針状電極または棒
状電極あるいは平板状電極であり、接地側電極４が平板
状電極である例を挙げることができる。一般的には、印
加電圧、パルス数、投入エナルギー、電界強度ともに大
きい方が殺菌に有効であり、またパルス数よりも印加電
圧が高い方が有効であり、同一投入エネルギーにおいて
は電界強度が高い方が有効である。As described above, an object to be sterilized is interposed between the discharge side electrode 3 and the ground side electrode 4, and the humidity control means 51 is operated to control the atmosphere in the processing apparatus 5 to a humidity suitable for sterilization. In the sterilization apparatus 1, the high voltage generated in the power supply unit 2 becomes a pulse voltage (for example, an energy wave is generated about 100 times per second) and is applied between the discharge-side electrode 3 and the ground-side electrode 4 of the processing tank 5. The sterilization is performed by generating a pulse streamer discharge between the discharge-side electrode 3 and the ground-side electrode 4 under the applied and normal temperature and normal pressure. The applied voltage, the number of pulses, the input energy (cal / cm 3 ), the electric field strength, etc., such as the shape and size of the discharge side electrode 3 and the ground side electrode 4, depend on the type, form, type, form, etc. of the sterilization target. Since it is different, it is not particularly limited, and it is preferable to appropriately select and determine so as to sufficiently sterilize within a range that does not impair the quality such as the flavor, flavor, medicinal effect, performance, dispersibility, etc. originally possessed by the object to be sterilized. Specific examples of the shapes of the discharge-side electrode 3 and the ground-side electrode 4 include an example in which the discharge-side electrode 3 is a needle electrode, a rod-like electrode, or a plate-like electrode, and the ground-side electrode 4 is a plate-like electrode. it can. In general, the higher the applied voltage, the number of pulses, the input energy, and the electric field strength, the more effective for sterilization, and the higher the applied voltage than the number of pulses, the more effective, and the electric field strength is higher at the same input energy. Is more effective.
【００１０】また、処理槽５中における殺菌処理時間、
殺菌対象物の処理量、攪拌の有無、湿度などの殺菌条件
も、殺菌対象物の種類、形態、菌の種類、形態などによ
って異なるので適宜選定して決めるのが好ましく特に限
定されない。しかし、処理槽５中における殺菌率は特に
湿度の影響を受ける。高湿度条件ではより高い殺菌率を
得ることができる。Further, a sterilization treatment time in the treatment tank 5
Sterilization conditions such as the throughput of the object to be sterilized, the presence or absence of agitation, and the humidity also vary according to the type, form, type, and form of the object to be sterilized, and thus are appropriately selected and determined, and are not particularly limited. However, the sterilization rate in the processing tank 5 is particularly affected by humidity. Higher sterilization rates can be obtained under high humidity conditions.
【００１１】図１および図２に示した本発明の殺菌装置
１を用いて、放電側電極３と接地側電極４間に殺菌対象
物として玄米（初期菌数：一般生菌数８．２×１０5 ｃ
ｆｕ／ｇ、真菌数（酵母、カビ）３．５×１０5 ｃｆｕ
／ｇ）３０ｇを介在させ、印加電圧を３０ＫＶ、放電電
流約０．０１〜０．１Ａｍｐ．、殺菌処理時間１５分と
して、常温（約２０℃）、常圧で殺菌を行う時、処理槽
５中の湿度を３０％ＲＨ以下、３０〜５０％ＲＨおよび
５０％ＲＨ以上と制御して変化させて殺菌を行い、それ
ぞれの湿度において殺菌後の玄米の一般生菌数および真
菌数を測定（培養による測定）した結果を表１に示す。Using the sterilizing apparatus 1 of the present invention shown in FIGS. 1 and 2, brown rice (initial bacterial count: general viable count 8.2 ×) is placed between the discharge side electrode 3 and the ground side electrode 4 as a sterilization target. 10 5 c
fu / g, fungal count (yeast, mold) 3.5 × 10 5 cfu
/ G) with an applied voltage of 30 KV and a discharge current of about 0.01 to 0.1 Amp. When the sterilization is performed at normal temperature (about 20 ° C.) and normal pressure with a sterilization processing time of 15 minutes, the humidity in the processing tank 5 is controlled to be 30% RH or less, 30 to 50% RH, and 50% RH or more. Table 1 shows the results of measurement (measurement by culturing) of the number of general viable bacteria and fungi of the brown rice after sterilization at each humidity.
【００１２】[0012]
【表１】 [Table 1]
【００１３】表１から高湿度条件ではより高い殺菌率を
得ることができることが判る。From Table 1, it can be seen that a higher sterilization rate can be obtained under high humidity conditions.
【００１４】図３は、本発明の他の実施形態における高
電圧を利用した殺菌装置の概要を示す構成図である。図
３において、本発明の殺菌装置の処理装置５は、高電圧
を発生する電源部２と、発生した高電圧を印加する放電
側電極３と接地側電極４を備えている。殺菌対象物７は
絶縁性容器８（例えば、ポリエチレン製のシャーレ状容
器）内に所定量入れられて、マニピュレータ９によって
接地側電極４上に配設される。このマニピュレータ９
は、前工程から殺菌対象物７の入った絶縁性容器８を掴
み取り、接地側電極４上に配設する。FIG. 3 is a configuration diagram showing an outline of a sterilizing apparatus using a high voltage according to another embodiment of the present invention. In FIG. 3, the processing device 5 of the sterilization apparatus of the present invention includes a power supply unit 2 for generating a high voltage, and a discharge-side electrode 3 and a ground-side electrode 4 for applying the generated high voltage. A predetermined amount of the sterilization target 7 is placed in an insulating container 8 (for example, a petri dish made of polyethylene), and is disposed on the ground electrode 4 by the manipulator 9. This manipulator 9
Is to grasp the insulating container 8 containing the sterilization target 7 from the previous process, and dispose it on the ground electrode 4.
【００１５】絶縁性容器８を接地側電極４上に配設する
箇所８Ａを図４に示す。接地側電極４は円形のターンテ
ーブルになっており、図４は該ターンテーブルを上方か
ら見た平面図である。図４に示すように、前記箇所８Ａ
は、接地側電極４のターンテーブルの回転軸１０に対し
て円周方向に等間隔に４つ設けられている。ターンテー
ブルは、モータ１１が回転駆動されることにより、位置
Ａにおいてマニピュレータ９によって配設された殺菌対
象物７の入った絶縁性容器８を回転角度９０°毎に間欠
的に矢印Ｘ方向に移送する。FIG. 4 shows a location 8 A where the insulating container 8 is disposed on the ground electrode 4. The ground electrode 4 is a circular turntable, and FIG. 4 is a plan view of the turntable viewed from above. As shown in FIG.
Are provided at equal intervals in the circumferential direction with respect to the rotation axis 10 of the turntable of the ground electrode 4. The turntable intermittently transports the insulating container 8 containing the sterilization target 7 disposed at the position A by the manipulator 9 at every rotation angle 90 ° in the arrow X direction by the rotation of the motor 11. I do.
【００１６】また、上述した接地側電極４であるターン
テーブルおよびモータ１１の回転軸１０は電気的に接続
されており、かつ該回転軸１０は摺動ブラシの接地手段
２９によって回転自在な状態で接地されている。The turntable 10 serving as the ground electrode 4 and the rotating shaft 10 of the motor 11 are electrically connected to each other, and the rotating shaft 10 is rotatable by the grounding means 29 of a sliding brush. Grounded.
【００１７】位置Ｂの上方には図３に示すように、例え
ば、オピニオン・ラック機構からなる昇降手段１２に絶
縁部材１３を介して固定された放電側電極３が設けられ
ており、駆動手段１４が駆動されることにより放電側電
極３が上下動するように構成されている。この放電側電
極３は、高交流電圧あるいは高電圧をパルス的に発生す
る電源部２に接続されている。As shown in FIG. 3, above the position B, for example, a discharge side electrode 3 fixed to an elevating means 12 comprising an opinion rack mechanism via an insulating member 13 is provided. Is driven so that the discharge-side electrode 3 moves up and down. The discharge side electrode 3 is connected to the power supply unit 2 which generates a high AC voltage or a high voltage in a pulsed manner.
【００１８】マニピュレータ１５は、接地側電極４であ
るターンテーブルの回転によって移送されてきた絶縁性
容器８を掴み取り、殺菌後の殺菌対象物７を図示しない
所定の容器に入れるなど次の工程に移送する。The manipulator 15 grasps the insulating container 8 transferred by the rotation of the turntable as the ground electrode 4 and transfers the sterilized object 7 after sterilization into a predetermined container (not shown) to the next step. I do.
【００１９】上述したモータ１１には、その回転角度を
検出する図示しない位置検出センサが設けられており、
制御手段１６は、この位置検出センサの出力信号に基づ
いてモータ１１、マニピュレータ９、１５、及び駆動手
段１４の作動をそれぞれ制御する。また、駆動手段１４
には放電側電極３の上下方向の移動位置を検出する図示
しない位置センサが設けられており、制御手段１６は、
この位置センサの出力信号に基づいて電源部２のＯＮ／
ＯＦＦを制御する。また、処理槽５中の湿度を制御する
調湿手段１７が設けられており、図示しない湿度センサ
の出力信号に基づいて制御手段１６は、この調湿手段１
７に信号を送って作動させて処理槽５中の雰囲気の湿度
を殺菌に適する所定の湿度に制御する。The above-mentioned motor 11 is provided with a position detection sensor (not shown) for detecting the rotation angle thereof.
The control unit 16 controls the operations of the motor 11, the manipulators 9, 15 and the driving unit 14 based on the output signal of the position detection sensor. Further, the driving means 14
Is provided with a position sensor (not shown) for detecting the vertical movement position of the discharge-side electrode 3.
ON / OFF of the power supply unit 2 based on the output signal of the position sensor
Control OFF. Further, a humidity control means 17 for controlling the humidity in the processing tank 5 is provided, and the control means 16 controls the humidity control means 1 based on an output signal of a humidity sensor (not shown).
A signal is sent to 7 to operate it, and the humidity of the atmosphere in the processing tank 5 is controlled to a predetermined humidity suitable for sterilization.
【００２０】次に、上述した殺菌装置の動作に付いて詳
しく説明する。まず、稼働ボタンが操作されて該殺菌装
置が動作を開始すると、制御手段１６は、マニピュレー
タ９を駆動させて位置Ａにおいて殺菌対象物７の入った
絶縁性容器８を接地側電極４であるターンテーブル上に
配設する。該容器８がターンテーブル上に配設される
と、制御手段１６は、モータ１１を駆動して該容器８を
位置Ｂ（ターンテーブルの回転角度として９０°）まで
搬送させる。Next, the operation of the above-mentioned sterilizing apparatus will be described in detail. First, when the operation button is operated to start the operation of the sterilizing apparatus, the control means 16 drives the manipulator 9 to turn the insulating container 8 containing the object 7 to be sterilized at the position A as the ground electrode 4. Arrange on the table. When the container 8 is placed on the turntable, the control means 16 drives the motor 11 to convey the container 8 to the position B (90 ° as the rotation angle of the turntable).
【００２１】該容器８が位置Ｂで停止すると、制御手段
１６は、駆動手段１４を制御して昇降手段１２を駆動
し、放電側電極３を降下させて該容器８内の殺菌対象物
７に近接させる。そして、放電側電極３が該容器８内の
殺菌対象物７に対して所定位置まで近接されたことを検
出すると、電源部２を「ＯＮ」状態として放電側電極３
に高電圧を印加させる。図示しない湿度センサの出力信
号に基づいて制御手段１６は調湿手段１７に信号を送っ
て調湿手段１７を作動させて処理槽５中の雰囲気の湿度
を殺菌に適する所定の湿度、例えば５０％ＲＨに制御す
る。When the container 8 stops at the position B, the control means 16 controls the driving means 14 to drive the lifting / lowering means 12 to lower the discharge-side electrode 3 so that the object 7 in the container 8 can be sterilized. Bring them closer. When it is detected that the discharge side electrode 3 has approached the sterilization target 7 in the container 8 to a predetermined position, the power supply unit 2 is turned on and the discharge side electrode 3 is turned on.
Is applied with a high voltage. Based on an output signal of a humidity sensor (not shown), the control unit 16 sends a signal to the humidity control unit 17 to operate the humidity control unit 17 to reduce the humidity of the atmosphere in the processing tank 5 to a predetermined humidity suitable for sterilization, for example, 50%. Control to RH.
【００２２】この結果、接地側電極４であるターンテー
ブルは接地されているので、放電側電極３と該容器８を
介して対向する接地側電極４であるターンテーブルとの
間にパルスストリーマ放電が発生し、該パルスストリー
マ放電によって照射されたイオンや電子によって該容器
８内の殺菌対象物７が殺菌される。As a result, since the turntable that is the ground electrode 4 is grounded, a pulse streamer discharge is generated between the discharge electrode 3 and the turntable that is the ground electrode 4 that is opposed via the container 8. The object 7 to be sterilized in the container 8 is sterilized by ions and electrons generated and irradiated by the pulse streamer discharge.
【００２３】次に、パルスストリーマ放電が終了する
と、制御手段１６は、駆動手段１４を制御して昇降手段
１２を駆動し、放電側電極３を上昇させて該容器８から
離間させる。そして、駆動手段１４に設けられた図示し
ない位置センサによって放電側電極３の該容器８からの
離間を検出すると、モータ１１を駆動して該容器８を位
置Ｃまで搬送させる。そして、該容器８が位置Ｃに停止
したことを検出すると、マニピュレータ１５を駆動させ
て該容器８を掴み取って該容器８内の殺菌後の殺菌対象
物７を図示しない所定の容器に入れるなど次の工程に移
送する。Next, when the pulse streamer discharge is completed, the control means 16 controls the driving means 14 to drive the lifting / lowering means 12 to raise the discharge-side electrode 3 and separate it from the vessel 8. When the separation of the discharge-side electrode 3 from the container 8 is detected by a position sensor (not shown) provided in the driving means 14, the motor 11 is driven to transport the container 8 to the position C. When it is detected that the container 8 has stopped at the position C, the manipulator 15 is driven to grab the container 8 and put the sterilized target 7 in the container 8 into a predetermined container (not shown). Transfer to the next step.
【００２４】ここで、先に該容器８が位置Ｂに停止した
時点で、制御手段１６は、位置Ａにおいてマニピュレー
タ９を駆動させて殺菌対象物７が入った次の容器８を該
ターンテーブル上に配設する。したがって、該容器８は
位置Ｂに順次搬送されてパルスストリーマ放電による殺
菌がなされる。Here, when the container 8 first stops at the position B, the control means 16 drives the manipulator 9 at the position A to move the next container 8 containing the object 7 to be sterilized on the turntable. To be installed in Therefore, the containers 8 are sequentially conveyed to the position B and sterilized by pulse streamer discharge.
【００２５】なお、本発明は上記実施形態に限定される
ものではないので、特許請求の範囲に記載の趣旨から逸
脱しない範囲で各種の変形実施が可能である。Since the present invention is not limited to the above embodiment, various modifications can be made without departing from the spirit of the appended claims.
【００２６】[0026]
【発明の効果】本発明の殺菌装置は、構成が簡単である
上、殺菌対象物が本来有する品質を損なわずに、常温、
常圧下で容易に効率よく殺菌することができ、前処理や
後処理が不要であり、安全性が高く、オゾン層破壊の問
題がない。高電圧を用いるが電流値は極微小なため、安
全かつ、低エネルギーである。薬剤や加熱をしないため
殺菌対象物の変質がほとんどなく、薬剤などが残留する
ことがない。品温の上昇も、ほとんどないため、加熱不
適な殺菌対象物の殺菌も対応可能である。本発明の殺菌
方法により、食品、医薬品、漢方薬品、化粧品、飼料、
肥料などの殺菌対象物が本来有する香味、風味、薬効、
性能、分散性などの品質を損なわずに、米に付着してい
る芽胞菌などを含む各種菌を常温、常圧下で容易に経済
的に効率よく殺菌して低菌数にすることができる。The sterilizing apparatus of the present invention has a simple structure and can be maintained at room temperature without impairing the quality of the object to be sterilized.
It can be easily and efficiently sterilized under normal pressure, does not require pre-treatment or post-treatment, has high safety, and has no problem of ozone layer destruction. Although a high voltage is used, since the current value is extremely small, it is safe and low energy. Since the medicine and the heating are not performed, there is almost no deterioration of the object to be sterilized, and the medicine or the like does not remain. Since there is almost no rise in the product temperature, sterilization of the sterilization target that is not suitable for heating can be handled. According to the sterilization method of the present invention, food, pharmaceuticals, Chinese medicine, cosmetics, feed,
The flavor, flavor, medicinal properties, and other properties inherent in the sterilization target such as fertilizers
Various bacteria including spores and the like adhered to rice can be easily and economically and efficiently sterilized at normal temperature and normal pressure to reduce the number of bacteria without impairing quality such as performance and dispersibility.
【図１】 本発明の高電圧を利用した殺菌装置の概要を
示す構成図である。FIG. 1 is a configuration diagram showing an outline of a sterilization apparatus using a high voltage according to the present invention.
【図２】 図１に示した本発明の殺菌装置の処理装置の
説明図である。FIG. 2 is an explanatory view of a processing device of the sterilization apparatus of the present invention shown in FIG.
【図３】 本発明の高電圧を利用した他の殺菌装置の概
要を示す構成図である。FIG. 3 is a configuration diagram showing an outline of another sterilization apparatus using high voltage according to the present invention.
【図４】 図３に示した本発明の殺菌装置のターンテー
ブルを上方から見た平面図である。4 is a plan view of the turntable of the sterilizer of the present invention shown in FIG. 3 as viewed from above.
１ 殺菌装置 ２ 高電圧を発生する電源部 ３ 放電側電極 ４ 接地側電極 ５ 処理装置 ６ セラミック板 ７ 殺菌対象物 １７、５１ 調湿手段 DESCRIPTION OF SYMBOLS 1 Sterilizer 2 Power supply part which generates a high voltage 3 Discharge side electrode 4 Grounding side electrode 5 Processing device 6 Ceramic plate 7 Sterilization target 17, 51 Humidity control means
───────────────────────────────────────────────────── フロントページの続き (72)発明者 阿萬 誉 大阪府守口市京阪本通２丁目５番５号 三 洋電機株式会社内 (72)発明者 田村 敏行 大阪府守口市京阪本通２丁目５番５号 三 洋電機株式会社内 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Takashi Aman 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor Toshiyuki Tamura 2--5 Keihanhondori, Moriguchi-shi, Osaka No. 5 Sanyo Electric Co., Ltd.
Claims (2)
電圧を印加する放電側電極と接地側電極を有する処理装
置と、この処理装置内の湿度を制御するための調湿手段
とを備えた殺菌装置であって、前記処理装置の前記電極
間に殺菌対象物を介在させて、前記電極間でパルススト
リーマ放電が発生させらることを特徴とする高電圧を利
用した殺菌装置。1. A power supply unit for generating a high voltage, a processing apparatus having a discharge electrode and a ground electrode for applying the generated high voltage, and a humidity control means for controlling humidity in the processing apparatus. A sterilizer using a high voltage, wherein a pulse streamer discharge is generated between the electrodes by interposing an object to be sterilized between the electrodes of the processing apparatus.
圧を印加する放電側電極と接地側電極を有する処理装置
中において、高電圧を印加した前記電極間に殺菌対象物
を介在させて、常温、常圧下、殺菌に適する湿度に制御
された雰囲気中で前記電極間でパルスストリーマ放電を
発生させることにより殺菌することを特徴とする殺菌方
法。2. In a processing apparatus having a discharge-side electrode and a ground-side electrode for applying a high voltage generated by a power supply unit for generating a high voltage, an object to be sterilized is interposed between the high-voltage-applied electrodes. A sterilization method, wherein sterilization is performed by generating pulse streamer discharge between the electrodes in an atmosphere controlled at normal temperature and normal pressure and humidity suitable for sterilization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10077816A JPH11267183A (en) | 1998-03-25 | 1998-03-25 | Disinfecting apparatus and method utilizing high voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10077816A JPH11267183A (en) | 1998-03-25 | 1998-03-25 | Disinfecting apparatus and method utilizing high voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11267183A true JPH11267183A (en) | 1999-10-05 |
Family
ID=13644563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10077816A Pending JPH11267183A (en) | 1998-03-25 | 1998-03-25 | Disinfecting apparatus and method utilizing high voltage |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11267183A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002001971A1 (en) * | 2000-06-30 | 2002-01-10 | Sanyo Electric Co., Ltd. | Sterilizer using high voltage and method for sterilizing object to be sterilized such as grain or seed by using the same |
| CN104012499A (en) * | 2014-05-15 | 2014-09-03 | 罗源 | Special granary grain input-output insect killing device and method |
| JP2015528370A (en) * | 2012-09-11 | 2015-09-28 | アメリカン イーグル インストラメンツ インコーポレイテッドＡｍｅｒｉｃａｎ Ｅａｇｌｅ Ｉｎｓｔｒｕｍｅｎｔｓ， Ｉｎｃ． | Discharge cleaner apparatus and method |
| JP2020081227A (en) * | 2018-11-21 | 2020-06-04 | 矢崎エナジーシステム株式会社 | Discharge sterilization method and discharge sterilization device for crop |
-
1998
- 1998-03-25 JP JP10077816A patent/JPH11267183A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002001971A1 (en) * | 2000-06-30 | 2002-01-10 | Sanyo Electric Co., Ltd. | Sterilizer using high voltage and method for sterilizing object to be sterilized such as grain or seed by using the same |
| JP2015528370A (en) * | 2012-09-11 | 2015-09-28 | アメリカン イーグル インストラメンツ インコーポレイテッドＡｍｅｒｉｃａｎ Ｅａｇｌｅ Ｉｎｓｔｒｕｍｅｎｔｓ， Ｉｎｃ． | Discharge cleaner apparatus and method |
| CN104012499A (en) * | 2014-05-15 | 2014-09-03 | 罗源 | Special granary grain input-output insect killing device and method |
| JP2020081227A (en) * | 2018-11-21 | 2020-06-04 | 矢崎エナジーシステム株式会社 | Discharge sterilization method and discharge sterilization device for crop |
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