JP2011147578A - Sterilizer - Google Patents

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JP2011147578A
JP2011147578A JP2010010684A JP2010010684A JP2011147578A JP 2011147578 A JP2011147578 A JP 2011147578A JP 2010010684 A JP2010010684 A JP 2010010684A JP 2010010684 A JP2010010684 A JP 2010010684A JP 2011147578 A JP2011147578 A JP 2011147578A
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sterilizing
sterilization
gas supply
atomization tank
gas
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JP5780705B2 (en
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Kenji Endo
憲二 遠藤
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Dai Nippon Printing Co Ltd
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Dai Nippon Printing Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To reduce the manufacturing cost and operating cost of a sterilizer. <P>SOLUTION: An ultrasonic transducer 1 having an ultrasonic emitting surface 1a inclined relative to the horizontal plane is disposed on the bottom of a storage atomizing tank 10 for storing a hydrogen peroxide solution M in such a state as immersed in the hydrogen peroxide solution M. The hydrogen peroxide solution M is atomized by the ultrasonic waves emitted from the ultrasonic emitting surface 1a of the ultrasonic transducer 1. Small particles of the atomized hydrogen peroxide solution m are carried through a heated sterilization gas feed pipe 30 to a sterilization station, and sprayed from a spray nozzle 33 attached to the distal end of the sterilization gas feed pipe 30 to be blown to an object C for sterilization. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

この発明は,殺菌装置,特に包装容器を含む包装材等の表面を殺菌する装置に関する。   The present invention relates to a sterilization apparatus, and more particularly to an apparatus for sterilizing the surface of a packaging material including a packaging container.

包装材等の殺菌は,たとえば過酸化水素水を霧状にして包装材等の表面に吹付けることによって行われる。特許文献1には,高温に加熱された加熱ガス化チャンバー(一般には「気化管」と呼ばれている)内に噴霧器(噴霧ノズル)から霧状の過酸化水素水を噴霧し,チャンバー内で気化し,包装材等に向けて噴霧する殺菌装置が開示されている。噴霧器から噴霧される霧状の過酸化水素水の粒径は大きくかつ不均一なため,その霧状過酸化水素水を直接に噴霧すると,過酸化水素水のしずく(液滴)が噴霧口から落ちたり(ボタ落ち),包装材等への過酸化水素水の吹付けムラが生じ,乾燥工程で過酸化水素が乾燥し難く,残留過酸化水素量が多くなる場合もある。上記従来技術では,噴霧器から噴霧される過酸化水素水を加熱ガス化チャンバー内で加熱し,これによって得られる小さい粒径の過酸化水素を包装材等に吹付けている。   Sterilization of the packaging material or the like is performed, for example, by spraying hydrogen peroxide water on the surface of the packaging material or the like in the form of a mist. In Patent Document 1, atomized hydrogen peroxide solution is sprayed from a sprayer (spray nozzle) into a heated gasification chamber (commonly referred to as a “vaporization tube”) heated to a high temperature. A sterilization apparatus that vaporizes and sprays toward a packaging material or the like is disclosed. Since the particle size of the atomized hydrogen peroxide solution sprayed from the sprayer is large and non-uniform, when the atomized hydrogen peroxide solution is sprayed directly, drops (droplets) of the hydrogen peroxide solution are discharged from the spray port. In some cases, hydrogen peroxide falls on the packaging material, uneven spraying of the hydrogen peroxide solution on the packaging material, etc., making it difficult for the hydrogen peroxide to dry in the drying process and increasing the amount of residual hydrogen peroxide. In the above prior art, hydrogen peroxide water sprayed from a sprayer is heated in a heated gasification chamber, and hydrogen peroxide having a small particle size obtained by this is sprayed onto a packaging material or the like.

特許第3214347号公報Japanese Patent No. 3214347

過酸化水素の沸点は約115℃である。噴霧器から噴霧される過酸化水素水を加熱ガス化チャンバー内で気化するには,チャンバー内を200℃〜300℃程度の高温に加熱しなければならない。殺菌装置の運転開始時には加熱ガス化チャンバーを上記温度まで昇温し,運転終了時には加熱ガス化チャンバーを常温まで冷却しなければならないので,この昇温や冷却に長時間を費やす。このため作業員の待ち時間が長くなる。また,運転中は加熱ガス化チャンバー内を高温状態に保持しなければならないので,消費電力が大きい。さらに,加熱ガス化チャンバーおよび噴霧器のいずれもが比較的高価であるので,殺菌装置の製造コストが高くなる。また,複数列の殺菌装置の場合には,複数の噴霧器および複数の加熱ガス化チャンバーを設けることが必要となるため,殺菌装置全体の価格はさらに高くなる。   The boiling point of hydrogen peroxide is about 115 ° C. In order to vaporize the hydrogen peroxide solution sprayed from the sprayer in the heated gasification chamber, the chamber must be heated to a high temperature of about 200 ° C to 300 ° C. When the operation of the sterilizer is started, the temperature of the heated gasification chamber must be raised to the above temperature, and when the operation is completed, the heated gasification chamber must be cooled to room temperature. This increases the waiting time of the worker. In addition, power consumption is high because the inside of the heated gasification chamber must be kept at a high temperature during operation. Furthermore, since both the heated gasification chamber and the sprayer are relatively expensive, the manufacturing cost of the sterilizer becomes high. In addition, in the case of a plurality of rows of sterilizers, it is necessary to provide a plurality of sprayers and a plurality of heated gasification chambers, which further increases the price of the entire sterilizer.

この発明は,殺菌装置の製造コスト,および運転コストの低減を図ることを目的とする。   An object of this invention is to reduce the manufacturing cost and operating cost of a sterilizer.

この発明はまた,殺菌装置の運転開始までの待ち時間,および運転終了時の待ち時間の短縮化を図ることを目的とする。   Another object of the present invention is to shorten the waiting time until the start of the operation of the sterilizer and the waiting time at the end of the operation.

この発明による殺菌装置は,下部に殺菌液を貯留し,上部に霧化空間を形成する貯留霧化タンク,上記貯留霧化タンク内の底部に設けられ,超音波出射面が水平面に対して傾斜している超音波振動子,上記貯留霧化タンク内の霧化空間に連通し,上記貯留霧化タンク内で霧化された殺菌液を含む殺菌ガスを殺菌工程まで給送する殺菌ガス給送管,および殺菌工程において上記殺菌ガス給送管の先端に設けられた殺菌ガスの噴霧ノズルを備えるものである。   The sterilization apparatus according to the present invention is provided at the bottom of the storage atomization tank that stores the sterilization liquid in the lower part and forms the atomization space in the upper part, and the ultrasonic emission surface is inclined with respect to the horizontal plane. A sterilizing gas feed that communicates with the atomizing space in the storage atomization tank and supplies the sterilization gas containing the sterilization liquid atomized in the storage atomization tank to the sterilization step And a sterilizing gas spray nozzle provided at the tip of the sterilizing gas supply pipe in the sterilizing step.

殺菌ガス給送管内を給送される殺菌ガスは,霧化空間内において霧化された殺菌液のみならず,霧化された殺菌液が蒸発(気化)して気体となったもの,殺菌液が溶媒(たとえば水)によって希釈されている場合には溶媒が霧化されたもの,その気体(たとえば,水蒸気),後述する送り出しガスやアシストガス,その他の液体および気体の一部または全部を含むものであってもよい。   The sterilizing gas fed through the sterilizing gas supply pipe is not only the atomized sterilizing liquid in the atomization space, but also the sterilizing liquid that has been vaporized and vaporized, If the solvent is diluted with a solvent (for example, water), the solvent is atomized, the gas (for example, water vapor), the delivery gas or assist gas described later, other liquids, and some or all of the gas It may be a thing.

この発明による殺菌装置は,殺菌ガスを殺菌対象物に吹付けて,殺菌対象物の表面の殺菌処理を行うものである。この発明において,「殺菌」の概念は,「滅菌」,「減菌」,「消毒」の概念を含む。   The sterilization apparatus according to the present invention sprays sterilization gas on an object to be sterilized to sterilize the surface of the object to be sterilized. In the present invention, the concept of “sterilization” includes the concepts of “sterilization”, “sterilization”, and “disinfection”.

貯留霧化タンク内の底部に設けられている超音波振動子の超音波出射面は同タンク内に貯留されている殺菌液中に没する。超音波振動子の超音波出射面から出射する超音波が,直接に殺菌液に伝わる。超音波振動子の超音波出射面から出射する超音波によって,貯留霧化タンクの殺菌液が霧化される。超音波振動子によって霧化される殺菌液は,噴霧器から噴霧されるものに比べてその粒径が小さくかつ均一である。また,超音波振動子は,その超音波出射面が水平面に対して傾斜しているので,超音波出射面を水平面と平行に設ける場合に比べて霧化効率がよい。   The ultrasonic wave emitting surface of the ultrasonic vibrator provided at the bottom of the storage atomization tank is immersed in the sterilizing liquid stored in the tank. The ultrasonic wave emitted from the ultrasonic wave emission surface of the ultrasonic vibrator is directly transmitted to the sterilizing solution. The sterilizing liquid in the storage atomization tank is atomized by the ultrasonic waves emitted from the ultrasonic wave emission surface of the ultrasonic vibrator. The sterilizing liquid atomized by the ultrasonic vibrator has a small and uniform particle size as compared with that sprayed from the sprayer. Further, since the ultrasonic wave emitting surface of the ultrasonic vibrator is inclined with respect to the horizontal plane, the atomization efficiency is better than when the ultrasonic wave emitting surface is provided parallel to the horizontal plane.

この発明によると,超音波振動子の超音波出射面から出射される超音波によって殺菌液が霧化されるので,噴霧器は不要である。しかも,超音波によって得られる霧状の殺菌液は粒径が小さくかつ均一である。したがって噴霧器および気化管を備えた従来の殺菌装置よりも,殺菌装置の製造コストの低減を図ることができる。また,気化管を高温に加熱するまでの待ち時間および運転終了時に気化管を冷却するまでの待ち時間も必要なく,殺菌装置の運転の効率化が実現する。気化管を高温に加熱するための大きな電力消費も必要なく,従来の殺菌装置よりも殺菌装置の運転コストの低減を図ることもできる。   According to the present invention, since the sterilizing liquid is atomized by the ultrasonic wave emitted from the ultrasonic wave emission surface of the ultrasonic vibrator, the nebulizer is unnecessary. Moreover, the mist-like sterilizing liquid obtained by ultrasonic waves has a small particle size and is uniform. Therefore, the manufacturing cost of the sterilizer can be reduced as compared with the conventional sterilizer equipped with the sprayer and the vaporizing tube. In addition, the waiting time until the vaporizing tube is heated to a high temperature and the waiting time until the vaporizing tube is cooled at the end of the operation are not required, and the operation efficiency of the sterilizer is improved. Large power consumption for heating the vaporizing tube to a high temperature is not required, and the operating cost of the sterilizer can be reduced as compared with the conventional sterilizer.

好ましい実施態様では,上記殺菌ガス給送管内の殺菌ガスを加熱する加熱装置がさらに備えられる。より好ましくは,殺菌ガス給送管の全長にわたって加熱する。殺菌ガス給送管内において霧化された殺菌液が加熱されるので,霧化された殺菌液の殺菌ガス給送管内での結露が抑制される。一実施態様では,殺菌ガスを殺菌液の沸点以上に加熱する。   In a preferred embodiment, a heating device for heating the sterilizing gas in the sterilizing gas supply pipe is further provided. More preferably, heating is performed over the entire length of the sterilizing gas supply pipe. Since the atomized sterilizing liquid is heated in the sterilizing gas supply pipe, dew condensation of the atomized sterilizing liquid in the sterilizing gas supply pipe is suppressed. In one embodiment, the sterilizing gas is heated above the boiling point of the sterilizing solution.

一実施態様では,上記加熱装置は,上記貯留霧化タンクの近くの方が遠方よりも温度が高くなるように,上記殺菌ガス給送管内の殺菌ガスを加熱する。結露が生じやすい貯留霧化タンクの近くにおいて殺菌ガス給送管内の結露が効果的に抑制される。   In one embodiment, the heating device heats the sterilizing gas in the sterilizing gas supply pipe so that the temperature near the storage atomization tank is higher than the distance from the far side. Condensation in the sterilizing gas supply pipe is effectively suppressed near the storage atomization tank where condensation tends to occur.

好ましくは,上記殺菌ガス給送管は,上記貯留霧化タンクの上部からほぼ垂直方向に延びた部分を有する。貯留霧化タンクに近い位置の殺菌ガス給送管内で霧状の殺菌液がたとえ結露しても,結露した殺菌液を貯留霧化タンク内に落下させて戻すことができる。垂直方向に延びた部分を最も高い温度で加熱するとよい。   Preferably, the sterilizing gas supply pipe has a portion extending in a substantially vertical direction from an upper portion of the storage atomization tank. Even if mist-like sterilizing liquid is condensed in the sterilizing gas supply pipe located near the storage atomizing tank, the condensed sterilizing liquid can be dropped back into the storage atomizing tank. The part extending in the vertical direction may be heated at the highest temperature.

他の実施態様では,送り出しガス供給管を含む送り出しガス供給装置が設けられ,送り出しガスが上記貯留霧化タンク内の上記霧化空間に供給される。上記貯留霧化タンク内の霧化空間で霧化された殺菌液が,送り出しガスによって上記殺菌ガス給送管へ効率よく送り出される。好ましくは,上記送り出しガス供給管は上記貯留霧化タンクの壁面の複数箇所に開口しており,霧化空間に複数箇所から送り出しガスが供給される。上記送り出しガス供給管は,上記貯留霧化タンク内の制御された殺菌液の液面よりも上方位置に水平向きまたは斜め上向きに送り出しガスを吹き出すように,上記貯留霧化タンクの壁面に開口させるとよい。貯留霧化タンクに貯留されている殺菌液の液面が送り出しガスによって乱されるのが防止される。   In another embodiment, a delivery gas supply device including a delivery gas supply pipe is provided, and the delivery gas is supplied to the atomization space in the storage atomization tank. The sterilization liquid atomized in the atomization space in the storage atomization tank is efficiently sent to the sterilization gas supply pipe by the delivery gas. Preferably, the delivery gas supply pipe is opened at a plurality of locations on the wall surface of the storage atomization tank, and the delivery gas is supplied to the atomization space from the plurality of locations. The delivery gas supply pipe is opened on the wall surface of the storage atomization tank so as to blow the delivery gas horizontally or obliquely upward to a position above the level of the controlled sterilizing liquid in the storage atomization tank. Good. The liquid level of the sterilizing liquid stored in the storage atomization tank is prevented from being disturbed by the delivery gas.

一実施態様では,殺菌装置は,上記貯留霧化タンク内の殺菌液の液面を検出する液面検出装置,および上記液面検出装置の検出に基づいて,上記貯留霧化タンク内の殺菌液の液面が常にほぼ一定となるように殺菌液を供給する殺菌液供給装置を備える。貯留霧化タンクの下部に一定容量の殺菌液が貯留され,液面を一定に保つことによって安定した霧化が期待される。   In one embodiment, the sterilizer includes a liquid level detection device that detects a liquid level of the sterilization liquid in the storage atomization tank, and a sterilization liquid in the storage atomization tank based on detection by the liquid level detection device. There is provided a sterilizing liquid supply device for supplying the sterilizing liquid so that the liquid level thereof is always substantially constant. A certain volume of sterilizing liquid is stored in the lower part of the storage atomization tank, and stable atomization is expected by keeping the liquid level constant.

好ましくは,貯留霧化タンク内に殺菌液を供給する殺菌液供給装置の殺菌液供給管の先端が,上記貯留霧化タンク内の制御された殺菌液の液面近くで開口するように配管される。上記殺菌液供給装置によって貯留霧化タンク内に殺菌液が供給(補充)されるときに,貯留霧化タンク内に貯留されている殺菌液の液面を乱さないようにすることができる。   Preferably, the tip of the sterilizing liquid supply pipe of the sterilizing liquid supply device for supplying the sterilizing liquid into the storage atomization tank is piped so as to open near the liquid level of the controlled sterilizing liquid in the storage atomization tank. The When the sterilizing liquid is supplied (supplemented) into the storage atomization tank by the sterilizing liquid supply device, the liquid level of the sterilizing liquid stored in the storage atomizing tank can be prevented from being disturbed.

好ましくは,上記殺菌ガス給送管の途中にアシストガスを供給するアシストガス供給管を含むアシストガス供給装置が備えられる。殺菌対象物への殺菌ガスの付着量を安定化することができる。アシストガス供給管内のアシストガスを加熱装置によって加熱して,加熱されたアシストガスを上記殺菌ガス給送管に供給してもよい。   Preferably, an assist gas supply device including an assist gas supply pipe for supplying an assist gas in the middle of the sterilization gas supply pipe is provided. The amount of sterilization gas attached to the sterilization target can be stabilized. The assist gas in the assist gas supply pipe may be heated by a heating device, and the heated assist gas may be supplied to the sterilization gas supply pipe.

一実施態様では,上記殺菌ガス給送管は殺菌工程付近において複数の支管に分岐し,各支管の先端にそれぞれ噴霧ノズルが設けられる。複数の殺菌対象物を同時に殺菌することができる。   In one embodiment, the sterilizing gas supply pipe branches into a plurality of branch pipes in the vicinity of the sterilization process, and a spray nozzle is provided at the tip of each branch pipe. A plurality of sterilization objects can be sterilized simultaneously.

殺菌装置の主要部の一構成例を概略的に示す。An example of composition of the principal part of a sterilizer is shown roughly. 殺菌装置の噴霧部の一例を示す斜視図である。It is a perspective view which shows an example of the spraying part of a sterilizer. 殺菌装置の噴霧部の他の例を示す一部切欠き斜視図である。It is a partially notched perspective view which shows the other example of the spraying part of a sterilizer. 殺菌装置の主要部の他の構成例を概略的に示す。The other structural example of the principal part of a sterilizer is shown roughly.

図1は殺菌装置の主要部の一構成例を概略的に示している。殺菌装置は貯留霧化タンク10を備えている。貯留霧化タンク10は,耐過酸化水素性に優れたステンレス,ポリ塩化ビニル等によって円筒状または角筒状につくられ,底面部15と,周面部(側面部,側壁)16と,上面部(天板)17とから構成され,後述する送り出しガス供給口12,過酸化水素水流出口13等を除いて密閉空間を形成している。   FIG. 1 schematically shows a configuration example of a main part of a sterilizer. The sterilizer includes a storage atomization tank 10. The storage atomization tank 10 is made of stainless steel, polyvinyl chloride or the like having excellent hydrogen peroxide resistance into a cylindrical or rectangular tube shape, and includes a bottom surface portion 15, a peripheral surface portion (side surface portion, side wall) 16, and an upper surface portion. (Top plate) 17, and a sealed space is formed except for a delivery gas supply port 12, a hydrogen peroxide solution outlet 13 and the like which will be described later.

貯留霧化タンク10内に過酸化水素水(たとえば濃度35%)を供給する過酸化水素水供給装置(殺菌液供給装置)50は,過酸化水素水を貯留する過酸化水素水貯留タンク51と,過酸化水素水供給管52と,過酸化水素水を過酸化水素水貯留タンク51から過酸化水素水供給管52を経て貯留霧化タンク10に送り出すポンプ53とから構成されている。過酸化水素水供給管52は,貯留霧化タンク10の上面部17から貯留霧化タンク10内に入り,後述するように貯留霧化タンク10内の過酸化水素水Mの液面近くまで延びている。   A hydrogen peroxide solution supply device (sterilizing solution supply device) 50 for supplying hydrogen peroxide solution (for example, concentration 35%) into the storage atomization tank 10 includes a hydrogen peroxide solution storage tank 51 for storing hydrogen peroxide solution. The hydrogen peroxide solution supply pipe 52 and the pump 53 for sending the hydrogen peroxide solution from the hydrogen peroxide solution storage tank 51 to the storage atomization tank 10 through the hydrogen peroxide solution supply pipe 52. The hydrogen peroxide solution supply pipe 52 enters the storage atomization tank 10 from the upper surface portion 17 of the storage atomization tank 10 and extends near the liquid level of the hydrogen peroxide solution M in the storage atomization tank 10 as will be described later. ing.

貯留霧化タンク10には,貯留霧化タンク10内の過酸化水素水の液面レベルを検出する液面検出装置60が設けられている。この液面検出装置60は連通管61を備えている。連通管61は,過酸化水素水Mの制御すべき液面レベルの上方および下方の位置において貯留霧化タンク10の周面に開口し,この上下の位置をつないでいる。連通管61内の垂直部分に液位(液面レベル)センサ62が設けられている。液位センサ62によって,貯留霧化タンク10内に貯留されている過酸化水素水Mの液位(液量)が高位,中位および低位の3つのレベルで検知される。もちろん連続的に検知してもよい。液位センサ62による検知液位に応じて,ポンプ53が制御され,これによって過酸化水素水貯留タンク51から貯留霧化タンク10内に供給される過酸化水素水Mの量が調整される。貯留霧化タンク10内の過酸化水素水Mは所定の一定液位に保たれる。過酸化水素水Mは,貯留霧化タンク10内の下部に比較的浅く貯留され,貯留霧化タンク10内の上部には空間(霧化空間11という)が広がっている。   The storage atomization tank 10 is provided with a liquid level detection device 60 that detects the level of the hydrogen peroxide solution in the storage atomization tank 10. The liquid level detection device 60 includes a communication pipe 61. The communication pipe 61 opens to the peripheral surface of the storage atomization tank 10 at positions above and below the liquid level to be controlled by the hydrogen peroxide solution M, and connects the upper and lower positions. A liquid level (liquid level) sensor 62 is provided in a vertical portion in the communication pipe 61. The liquid level sensor 62 detects the liquid level (liquid amount) of the hydrogen peroxide solution M stored in the storage atomization tank 10 at three levels: high level, medium level, and low level. Of course, you may detect continuously. The pump 53 is controlled in accordance with the liquid level detected by the liquid level sensor 62, whereby the amount of the hydrogen peroxide solution M supplied from the hydrogen peroxide solution storage tank 51 into the storage atomization tank 10 is adjusted. The hydrogen peroxide solution M in the storage atomization tank 10 is kept at a predetermined constant liquid level. The hydrogen peroxide solution M is stored relatively shallow in the lower part of the storage atomization tank 10, and a space (referred to as the atomization space 11) spreads in the upper part of the storage atomization tank 10.

貯留霧化タンク10に貯留された過酸化水素水Mの液面を乱さないようにするために,上述のように過酸化水素水供給管52の先端が貯留霧化タンク10内の過酸化水素水Mの液面近くで開口している。過酸化水素水供給管52の先端開口を貯留霧化タンク10の内壁に接触させておき,貯留霧化タンク10の内壁を伝わせて過酸化水素水Mを貯留霧化タンク10内に供給してもよい。   In order not to disturb the liquid level of the hydrogen peroxide solution M stored in the storage atomization tank 10, the tip of the hydrogen peroxide solution supply pipe 52 is connected to the hydrogen peroxide solution in the storage atomization tank 10 as described above. Open near the surface of the water M. The tip opening of the hydrogen peroxide solution supply pipe 52 is brought into contact with the inner wall of the storage atomization tank 10, and the hydrogen peroxide solution M is supplied into the storage atomization tank 10 along the inner wall of the storage atomization tank 10. May be.

貯留霧化タンク10の底面部15に形成された開口15aに超音波振動子1が水密に固定されている。超音波振動子1の超音波出射面1aは貯留霧化タンク10内の底面よりも低い位置にあり,かつ上方を向いている(霧化空間11の方を向いている)。したがって,超音波振動子1の超音波出射面1aは過酸化水素水M中に没している。超音波振動子は貯留霧化タンク10内の底面部に凹部を形成してその凹部内に固定してもよいし,開口や凹部を設けずに貯留霧化タンク10内の底面上に固定してもよい。   The ultrasonic vibrator 1 is fixed in a watertight manner to an opening 15 a formed in the bottom surface portion 15 of the storage atomizing tank 10. The ultrasonic wave emission surface 1a of the ultrasonic vibrator 1 is at a position lower than the bottom surface in the storage atomization tank 10 and faces upward (facing toward the atomization space 11). Therefore, the ultrasonic emission surface 1 a of the ultrasonic transducer 1 is submerged in the hydrogen peroxide solution M. The ultrasonic vibrator may be fixed in the concave portion by forming a concave portion in the bottom portion in the storage atomizing tank 10 or fixed on the bottom surface in the storage atomizing tank 10 without providing an opening or a concave portion. May be.

超音波振動子1は,比較的高い発振周波数,たとえば2.4MHzの発振周波数によって振動する。超音波振動子1が振動すると,その超音波出射面1aから超音波が出射し,過酸化水素水Mの液面から液柱が噴出し,液柱から霧化された過酸化水素水mが霧化空間11中に飛散する。3μm程度のほぼ均一な粒径の霧状の過酸化水素水mが得られる。   The ultrasonic vibrator 1 vibrates with a relatively high oscillation frequency, for example, an oscillation frequency of 2.4 MHz. When the ultrasonic vibrator 1 vibrates, ultrasonic waves are emitted from the ultrasonic emission surface 1a, the liquid column is ejected from the liquid surface of the hydrogen peroxide solution M, and the hydrogen peroxide solution m atomized from the liquid column is generated. It scatters in the atomization space 11. A mist-like hydrogen peroxide solution m having a substantially uniform particle diameter of about 3 μm is obtained.

超音波振動子1は,その超音波出射面1aが過酸化水素水Mの液面(水平面)に対して傾斜している。超音波振動子1の超音波出射面1aを過酸化水素水Mの液面と平行(水平)とする場合に比べて霧化効率が向上する。   In the ultrasonic vibrator 1, the ultrasonic emission surface 1 a is inclined with respect to the liquid surface (horizontal plane) of the hydrogen peroxide solution M. Compared with the case where the ultrasonic wave exit surface 1a of the ultrasonic vibrator 1 is parallel (horizontal) to the liquid surface of the hydrogen peroxide solution M, the atomization efficiency is improved.

超音波振動子1の霧化能力は超音波振動子(超音波出射面1a)と過酸化水素水Mの液面との距離に大きく影響される。上述したように,過酸化水素水Mの液位は常にほぼ一定に保たれるように調整されているので,常にほぼ一定量の安定した霧化動作が期待される。   The atomizing ability of the ultrasonic vibrator 1 is greatly influenced by the distance between the ultrasonic vibrator (ultrasonic wave exit surface 1a) and the liquid level of the hydrogen peroxide solution M. As described above, since the liquid level of the hydrogen peroxide solution M is adjusted so as to be kept almost constant at all times, a stable atomization operation of almost a constant amount is always expected.

貯留霧化タンク10の側壁16には,上記過酸化水素水Mの液面よりも上方位置に,4つの送り出しガス供給口12があけられ(図1には2つの送り出しガス供給口12が示されている),また貯留霧化タンク10の天板17に1つの過酸化水素流出口13があけられている。送り出しガスはこの実施例では空気(エア)である。送り出しガス(エア)供給装置20は,エア・コンプレッサ25と,エア・コンプレッサ25から供給される圧縮空気を貯留霧化タンク10にあけられた4つの送り出しガス供給口12まで途中で分岐して導く送り出しガス供給管21とを備えている。送り出しガス供給管21の分岐箇所よりもエア・コンプレッサ25側には,開閉および流量調整用のバルブ22,空気清浄用のフィルタ23およびレギュレータ24が設けられている。コンプレッサ25には,ミスト・セパレータおよびエア・ドライヤ(いずれも図示略)が設けられている。   Four delivery gas supply ports 12 are opened on the side wall 16 of the storage atomization tank 10 above the liquid level of the hydrogen peroxide solution M (FIG. 1 shows two delivery gas supply ports 12. In addition, one hydrogen peroxide outlet 13 is opened in the top plate 17 of the storage atomization tank 10. In this embodiment, the delivery gas is air. The delivery gas (air) supply device 20 divides and leads the air compressor 25 and the compressed air supplied from the air compressor 25 to the four delivery gas supply ports 12 opened in the storage atomization tank 10 on the way. A delivery gas supply pipe 21 is provided. An opening / closing and flow rate adjusting valve 22, an air purifying filter 23 and a regulator 24 are provided on the air compressor 25 side of the branch portion of the delivery gas supply pipe 21. The compressor 25 is provided with a mist separator and an air dryer (both not shown).

このようにして,適度に乾燥され,かつ清浄された送り出しエアが4つの送り出しガス供給口12から貯留霧化タンク10内の霧化空間11に送り込まれる.送り出しエアの流量は,貯留霧化タンク10の容量,送り出しガス供給管21および殺菌ガス給送管30の管径等に依るが,貯留霧化タンク10の容量が20Lの場合には30〜100L/min程度である。送り出しエアは常温以上であればよく,加熱したものでもよい。送り出しエアとしては無菌エアを用いることもできる。送り出しガス供給口12は2つでも,5つ以上でもよい。貯留霧化タンク10内の過酸化水素水Mの液面が送り出しガスの供給によって乱れないようにするために,送り出しガス供給管21の先端の開口12は貯留霧化タンク10の側壁16において液面に対して平行な方向を向いている。先端開口12が斜め上方を向くように,送り出しガス供給管21をタンク10の側壁16近くにおいて斜めに配管してもよい。   In this way, the air that has been appropriately dried and cleaned is sent from the four delivery gas supply ports 12 to the atomization space 11 in the storage atomization tank 10. The flow rate of the delivery air depends on the capacity of the storage atomization tank 10, the pipe diameters of the delivery gas supply pipe 21 and the sterilization gas supply pipe 30, etc., but when the capacity of the storage atomization tank 10 is 20L, it is 30 to 100L. / Min. The delivery air may be at room temperature or higher, and may be heated. Aseptic air can be used as the delivery air. The number of delivery gas supply ports 12 may be two, or five or more. In order to prevent the liquid level of the hydrogen peroxide solution M in the storage atomization tank 10 from being disturbed by the supply of the delivery gas, the opening 12 at the tip of the delivery gas supply pipe 21 is liquid in the side wall 16 of the storage atomization tank 10. The direction is parallel to the surface. The delivery gas supply pipe 21 may be arranged obliquely near the side wall 16 of the tank 10 so that the tip opening 12 faces obliquely upward.

殺菌ガス給送管30は,その一端が貯留霧化タンク10の天板17の過酸化水素流出口13に接続され,殺菌場所(図2,図3参照)まで配設されている。貯留霧化タンク10の霧化空間11内で発生した過酸化水素水Mの霧mは,送り出しガス供給管12から吐き出される送り出しエアによって過酸化水素流出口13の方に送り出され,送り出しエアとともに殺菌ガス給送管30内を流れて,殺菌場所まで給送される。   One end of the sterilization gas feed pipe 30 is connected to the hydrogen peroxide outlet 13 of the top plate 17 of the storage atomization tank 10 and is disposed up to the sterilization place (see FIGS. 2 and 3). The mist m of the hydrogen peroxide solution M generated in the atomization space 11 of the storage atomization tank 10 is sent out toward the hydrogen peroxide outlet 13 by the delivery air discharged from the delivery gas supply pipe 12, and together with the delivery air It flows through the sterilization gas feed pipe 30 and is fed to the sterilization place.

殺菌ガス給送管30の外側周囲には,その全長にわたって加熱装置(たとえば,リボンヒータ)31が設けられている。加熱装置31によって殺菌ガス給送管30の内部は120℃〜150℃程度に加熱され,かつその温度に保持される。水の沸点は100℃であり,過酸化水素の沸点は約115℃である。殺菌ガス給送管30に霧状の過酸化水素水mが流入すると,殺菌ガス給送管30内において,霧状の過酸化水素水mに含まれる水および過酸化水素は,それらの少なくとも一部が蒸発して気体となる。殺菌ガス給送管30には,霧状の過酸化水素水m,気化された過酸化水素,水蒸気およびエア(送り出しエア)が流れる。殺菌ガス給送管30を流れる霧状過酸化水素水m,気化された過酸化水素,水蒸気および空気を含むこれらの気体および液体の混合体(これらのうちの一つ以上存在しない場合,他の気体または霧状液体が存在する場合を含む)を,まとめて殺菌ガスGという。   A heating device (for example, a ribbon heater) 31 is provided on the outer periphery of the sterilizing gas supply pipe 30 over its entire length. The inside of the sterilizing gas supply pipe 30 is heated to about 120 ° C. to 150 ° C. by the heating device 31 and is maintained at that temperature. The boiling point of water is 100 ° C., and the boiling point of hydrogen peroxide is about 115 ° C. When the atomized hydrogen peroxide solution m flows into the sterilizing gas supply tube 30, the water and hydrogen peroxide contained in the atomized hydrogen peroxide solution m in the sterilizing gas supply tube 30 are at least one of them. The part evaporates and becomes gas. In the sterilizing gas feed pipe 30, mist-like hydrogen peroxide solution m, vaporized hydrogen peroxide, water vapor, and air (delivery air) flow. A mixture of these gases and liquids including mist hydrogen peroxide water m, vaporized hydrogen peroxide, water vapor and air flowing through the sterilizing gas delivery tube 30 (if one or more of these are not present, (Including the case where a gas or a mist-like liquid is present) is collectively referred to as a sterilizing gas G.

殺菌ガス給送管30を加熱装置31によって加熱することによって,殺菌ガス給送管30内での霧状の過酸化水素水mの結露が抑制され,殺菌ガス給送管30の先端からの過酸化水素水のしずく(液滴)落ち(ボタ落ち)が防止される。結露は,貯留霧化タンク10に近い位置の殺菌ガス給送管30内で生じやすいので,好ましくは,貯留霧化タンク10の近くの殺菌ガス給送管30内が,遠方よりも高い温度で加熱される。たとえば,貯留霧化タンク10に近い位置では,殺菌ガス給送管30の内部温度が150℃程度となるように加熱し,遠方になるにつれて少しずつ加熱温度を低くして,殺菌ガス給送管30の先端付近では120℃程度に加熱する。   By heating the sterilizing gas feed pipe 30 with the heating device 31, condensation of the mist-like hydrogen peroxide water m in the sterilizing gas feed pipe 30 is suppressed, and excess water from the tip of the sterilizing gas feed pipe 30 is suppressed. Drops (droplets) of hydrogen oxide water are prevented from dropping (bottom drops). Condensation is likely to occur in the sterilization gas supply pipe 30 near the storage atomization tank 10, and therefore, preferably, the inside of the sterilization gas supply pipe 30 near the storage atomization tank 10 has a higher temperature than that of the distant place. Heated. For example, at a position close to the storage atomization tank 10, the sterilization gas feed pipe 30 is heated so that the internal temperature of the sterilization gas feed pipe 30 is about 150 ° C., and the heating temperature is gradually lowered as the distance increases. Heat to about 120 ° C. near the tip of 30.

殺菌ガス給送管30は,貯留霧化タンク10の天板17から,たとえば,150mm〜300mm程度,ほぼ垂直方向に延びている。これは,たとえ貯留霧化タンク10に近い位置の殺菌ガス給送管30内で結露が発生しても,結露した過酸化水素水を貯留霧化タンク10に落下させて過酸化水素水Mに戻すようにするためである。   The sterilizing gas supply pipe 30 extends from the top plate 17 of the storage atomization tank 10 in a substantially vertical direction, for example, about 150 mm to 300 mm. This is because even if dew condensation occurs in the sterilization gas feed pipe 30 at a position close to the storage atomization tank 10, the condensed hydrogen peroxide solution is dropped into the storage atomization tank 10 to form the hydrogen peroxide solution M. This is to return it.

アシストガスはこの実施例ではアシストエアである。アシストガス(エア)供給装置40は,上述のエア・コンプレッサ25(送り出しガス供給装置20と共用)と,エア・コンプレッサ25から供給される圧縮空気を殺菌ガス給送管30まで給送するアシストガス供給管41とを備えている。アシストガス供給管41には,バルブ42,フィルタ43およびレギュレータ44が設けられ,フィルタ43によって清浄されたエアが供給される。もちろん,アシストエアには無菌エアを用いてもよい。アシストガス供給管41の一部にも加熱装置45が設けられ,殺菌ガス給送管30に合流する手前でアシストエアが120℃〜200℃に加熱される。アシストエアの流量は,後述する噴霧ノズルの形状,サイズ,殺菌対象物の形態等に応じて適宜設定される。アシストエアは,貯留霧化タンク10に供給される送り出しエアのみでは噴霧が安定しない場合や,殺菌対象物の形態によっては殺菌ガスGの付着量が十分でない箇所が発生するおそれがある場合などに用いられる。   The assist gas is assist air in this embodiment. The assist gas (air) supply device 40 includes the above-described air compressor 25 (shared with the delivery gas supply device 20) and an assist gas that supplies compressed air supplied from the air compressor 25 to the sterilization gas supply pipe 30. And a supply pipe 41. The assist gas supply pipe 41 is provided with a valve 42, a filter 43, and a regulator 44, and air purified by the filter 43 is supplied. Of course, aseptic air may be used as the assist air. A heating device 45 is also provided in a part of the assist gas supply pipe 41, and the assist air is heated to 120 ° C. to 200 ° C. before joining the sterilizing gas supply pipe 30. The flow rate of the assist air is appropriately set according to the shape and size of the spray nozzle described later, the form of the sterilization target, and the like. The assist air is used when spraying is not stable only with the delivery air supplied to the storage atomization tank 10 or when there is a possibility that a portion where the amount of the sterilizing gas G is not sufficiently adhered depending on the form of the sterilization target. Used.

図2は,殺菌工程が実施される位置に配置される噴霧ノズルによって殺菌対象物に殺菌ガスを噴霧する様子を示す。複数の円錐形状の噴霧ノズルが一列に配列され,その下を,リテーナに保持された殺菌対象物であるカップ(包装容器)が搬送される。   FIG. 2 shows a state in which sterilization gas is sprayed on an object to be sterilized by a spray nozzle arranged at a position where the sterilization process is performed. A plurality of conical spray nozzles are arranged in a row, and a cup (packaging container), which is an object to be sterilized held by a retainer, is conveyed under the nozzles.

殺菌ガス給送管30は,殺菌工程において複数の支管32に分岐し,支管32のそれぞれに噴霧ノズル33が取り付けられている。支管32および噴霧ノズル33にも加熱装置31が設けられている。リテーナ70には複数の穴71があけられている。この穴71に入れられたカップCのフランジが穴71の周縁に引っかかり,カップCはリテーナ70によって保持される。   The sterilizing gas supply pipe 30 branches into a plurality of branch pipes 32 in the sterilization process, and a spray nozzle 33 is attached to each of the branch pipes 32. The branch device 32 and the spray nozzle 33 are also provided with a heating device 31. A plurality of holes 71 are formed in the retainer 70. The flange of the cup C placed in the hole 71 is caught on the periphery of the hole 71, and the cup C is held by the retainer 70.

複数の噴霧ノズル33は,搬送されるリテーナ70の表面から5mmから10mm程度の間隔をあけて上方に位置している。リテーナ70が噴霧ノズル33の位置に到達するとリテーナ70の搬送が一時停止し,噴霧ノズル33から吹き出す殺菌ガスGがカップCの内面およびフランジに付着する。その後乾燥工程を経て殺菌が完結する。   The plurality of spray nozzles 33 are located above the surface of the retainer 70 to be conveyed with an interval of about 5 mm to 10 mm. When the retainer 70 reaches the position of the spray nozzle 33, the transport of the retainer 70 is temporarily stopped, and the sterilizing gas G blown from the spray nozzle 33 adheres to the inner surface and flange of the cup C. Thereafter, the sterilization is completed through a drying process.

この実施例の殺菌装置を用いて殺菌ガスGを吹付けたカップCについて過酸化水素の付着量を測定したところ,従来の噴霧器および加熱ガス化チャンバーを備えた殺菌装置(特許文献1を参照)を用いた場合とほぼ同じ付着量が確認された。殺菌効果について,従来の殺菌装置と同様の効果を得ることができた。そして,この実施例の殺菌装置は,上述のように超音波振動子1の超音波出射面1aから出射される超音波によって霧状の過酸化水素水mを得るので従来の殺菌装置のように噴霧器は必要とされず,さらに超音波によって得られる霧状の過酸化水素水mは粒径が小さくかつ均一であるので加熱ガス化チャンバーを備える必要もない。従来の殺菌装置よりも殺菌装置の製造コストの低減を図ることができる。また,加熱ガス化チャンバーを高温に加熱するまでの待ち時間および運転終了時に加熱ガス化チャンバーを冷却するまでの待ち時間も必要なく,殺菌装置の運転の効率化も実現する。加熱ガス化チャンバーを高温に加熱するための大きな電力消費も必要とされず,殺菌装置の運転コストの低減も図ることができる。このように,この実施例の殺菌装置は,従来の殺菌装置と同様の殺菌効果を確保しつつ,殺菌装置の製造コスト,殺菌装置の運転の効率化,および殺菌装置の運転コストのいずれの観点からも,従来の殺菌装置に比べて有利である。   When the adhesion amount of hydrogen peroxide was measured for the cup C sprayed with the sterilizing gas G using the sterilizing apparatus of this embodiment, a sterilizing apparatus provided with a conventional sprayer and a heated gasification chamber (see Patent Document 1) Almost the same amount of adhesion was confirmed as when using. As for the sterilization effect, the same effect as the conventional sterilization apparatus could be obtained. Since the sterilizing apparatus of this embodiment obtains the mist-like hydrogen peroxide solution m by the ultrasonic wave emitted from the ultrasonic wave emitting surface 1a of the ultrasonic vibrator 1 as described above, like the conventional sterilizing apparatus. A nebulizer is not required, and since the atomized hydrogen peroxide solution m obtained by ultrasonic waves has a small particle size and is uniform, there is no need to provide a heated gasification chamber. The manufacturing cost of the sterilizer can be reduced as compared with the conventional sterilizer. In addition, there is no need for a waiting time until the heated gasification chamber is heated to a high temperature and a waiting time until the heated gasification chamber is cooled at the end of the operation, so that the operation efficiency of the sterilizer can be improved. Large power consumption for heating the heated gasification chamber to a high temperature is not required, and the operating cost of the sterilizer can be reduced. As described above, the sterilizing apparatus of this embodiment secures the same sterilizing effect as that of the conventional sterilizing apparatus, and any one of the viewpoints of manufacturing cost of the sterilizing apparatus, efficient operation of the sterilizing apparatus, and operating cost of the sterilizing apparatus. Therefore, it is more advantageous than conventional sterilizers.

図3は,殺菌装置の殺菌ガス噴霧部の他の例を示す一部切欠き斜視図であり,シートSを殺菌する例を示している。   FIG. 3 is a partially cutaway perspective view showing another example of the sterilizing gas spraying portion of the sterilizing apparatus, and shows an example in which the sheet S is sterilized.

殺菌対象物がシートSの場合には,シートSの幅よりも少し長いスリット35aを有しており,スリット35aから殺菌ガスGを吹出す2つの噴霧ノズル35が,シートSの搬送路をその上下(表裏)から挟む位置に設けられる。殺菌ガス給送管30は2つの支管34に分岐し,各支管34の先端のそれぞれに上記噴霧ノズル35が設けられる。噴霧ノズル35にもその外側周囲に加熱装置31が設けられ,所定温度に加熱されている。連続搬送されるシートSの両面に向けて,噴霧ノズル35のスリット35aから殺菌ガスGが吹出す。シートSの両面に殺菌ガスGが付着する。その後乾燥工程を経て殺菌が完結する。   When the object to be sterilized is the sheet S, it has a slit 35a slightly longer than the width of the sheet S, and the two spray nozzles 35 for blowing the sterilizing gas G from the slit 35a pass through the conveying path of the sheet S. It is provided at a position sandwiched from above and below (front and back). The sterilizing gas feed pipe 30 is branched into two branch pipes 34, and the spray nozzle 35 is provided at the tip of each branch pipe 34. The spray nozzle 35 is also provided with a heating device 31 around its outer periphery, and is heated to a predetermined temperature. The sterilizing gas G is blown out from the slits 35a of the spray nozzle 35 toward both sides of the continuously conveyed sheet S. The sterilizing gas G adheres to both surfaces of the sheet S. Thereafter, the sterilization is completed through a drying process.

図4は殺菌装置の主要部の他の例を示している。図1に示す殺菌装置の主要部と異なる部分についてのみ説明する。   FIG. 4 shows another example of the main part of the sterilizer. Only the parts different from the main part of the sterilizer shown in FIG. 1 will be described.

貯留霧化タンク10Aの天板17Aは,上方に突出するように湾曲しかつ傾斜している。殺菌ガス給送管30は天板17Aの中央部(頂点)に接続されている。天板17Aの湾曲に沿って霧状の過酸化水素mを殺菌ガス給送管30に効率よく送り込むことができる。   The top plate 17A of the storage atomizing tank 10A is curved and inclined so as to protrude upward. The sterilizing gas supply pipe 30 is connected to the central portion (vertex) of the top plate 17A. The atomized hydrogen peroxide m can be efficiently fed into the sterilizing gas feed pipe 30 along the curvature of the top plate 17A.

アシストガス供給管41は,殺菌ガス給送管30中を流れる殺菌ガスGの向きに沿う方向に,斜めに殺菌ガス給送管30に接続されている。殺菌ガス給送管30に供給されるアシストガスの向きが,殺菌ガス給送管30中を流れる殺菌ガスGの向きとほぼ同じ向きとなる。殺菌ガス給送管30の一部を二重の管構造にして,中心に殺菌ガスを流し,その周囲の環状部分にアシストガスを流して,中心の殺菌ガスに周囲から合流させるようにしてもよい。   The assist gas supply pipe 41 is connected to the sterilization gas supply pipe 30 obliquely in a direction along the direction of the sterilization gas G flowing through the sterilization gas supply pipe 30. The direction of the assist gas supplied to the sterilizing gas supply pipe 30 is substantially the same as the direction of the sterilizing gas G flowing through the sterilizing gas supply pipe 30. A part of the sterilization gas feeding pipe 30 is made into a double pipe structure, and the sterilization gas is allowed to flow in the center, the assist gas is allowed to flow in the surrounding annular part, and the central sterilization gas is joined from the periphery. Good.

1 超音波振動子
1a 超音波出射面
10,10A 貯留霧化タンク
11 霧化空間
20 送り出しガス供給装置
21 送り出しガス供給管
30 殺菌ガス給送管
31 加熱装置
33,35 噴霧ノズル
40 アシストガス供給装置
41 アシストガス供給管
50 過酸化水素水供給装置
52 過酸化水素水供給管
53 ポンプ
60 液面検出装置
62 液位センサ
m 霧化された過酸化水素水
M 過酸化水素水
G 殺菌ガス
1 Ultrasonic vibrator 1a Ultrasonic emission surface
10, 10A storage atomization tank
11 Atomization space
20 Delivery gas supply device
21 Delivery gas supply pipe
30 Sterilization gas supply pipe
31 Heating device
33, 35 Spray nozzle
40 Assist gas supply device
41 Assist gas supply pipe
50 Hydrogen peroxide supply device
52 Hydrogen peroxide supply pipe
53 Pump
60 Liquid level detector
62 Liquid level sensor m Atomized hydrogen peroxide solution M Hydrogen peroxide solution G Sterilization gas

Claims (12)

下部に殺菌液を貯留し,上部に霧化空間を形成する貯留霧化タンク,
上記貯留霧化タンク内の底部に設けられ,超音波出射面が水平面に対して傾斜している超音波振動子,
上記貯留霧化タンク内の霧化空間に連通し,上記貯留霧化タンク内で霧化された殺菌液を含む殺菌ガスを殺菌工程まで給送する殺菌ガス給送管,および
殺菌工程において上記殺菌ガス給送管の先端に設けられた殺菌ガスの噴霧ノズル,
を備える殺菌装置。
A storage atomization tank that stores the sterilizing liquid at the bottom and forms an atomization space at the top
An ultrasonic transducer provided at the bottom of the storage atomization tank and having an ultrasonic output surface inclined with respect to a horizontal plane;
A sterilization gas feed pipe that communicates with the atomization space in the storage atomization tank and feeds the sterilization gas containing the sterilization liquid atomized in the storage atomization tank to the sterilization process, and the sterilization process in the sterilization process A sterilizing gas spray nozzle provided at the tip of the gas feed pipe;
A sterilizer comprising:
上記殺菌ガス給送管内の殺菌ガスを加熱する加熱装置をさらに備える,請求項1に記載の殺菌装置。   The sterilizer according to claim 1, further comprising a heating device for heating the sterilizing gas in the sterilizing gas supply pipe. 上記加熱装置は,上記殺菌ガス給送管内の殺菌ガスの温度を,上記貯留霧化タンクの近くの方が遠方よりも高くなるように加熱するものである,請求項2に記載の殺菌装置。   The sterilizer according to claim 2, wherein the heating device heats the temperature of the sterilizing gas in the sterilizing gas supply pipe so that the temperature in the vicinity of the storage atomization tank is higher than that in the distance. 上記加熱装置は,上記殺菌ガスを殺菌液の沸点以上に加熱するものである,請求項2または3に記載の殺菌装置。   The sterilizer according to claim 2 or 3, wherein the heating device heats the sterilizing gas to a boiling point or higher of the sterilizing liquid. 上記殺菌ガス給送管は,上記貯留霧化タンクの上部からほぼ垂直方向に延びた部分を有する,請求項1から4のいずれか一項に記載の殺菌装置。   The sterilization apparatus according to any one of claims 1 to 4, wherein the sterilization gas supply pipe has a portion extending in a substantially vertical direction from an upper portion of the storage atomization tank. 上記貯留霧化タンク内の霧化空間で霧化された殺菌液を上記殺菌ガス給送管に送り出すガスを上記霧化空間に供給する送り出しガス供給管を含む送り出しガス供給装置をさらに備える,請求項1から5のいずれか一項に記載の殺菌装置。   The apparatus further comprises a delivery gas supply device including a delivery gas supply pipe for feeding a gas for feeding the sterilizing liquid atomized in the atomization space in the storage atomization tank to the sterilization gas supply pipe. Item 6. The sterilizer according to any one of Items 1 to 5. 上記殺菌ガス給送管の途中にアシストガスを供給するアシストガス供給管を含むアシストガス供給装置をさらに備える,請求項1から6のいずれか一項に記載の殺菌装置。   The sterilizer according to any one of claims 1 to 6, further comprising an assist gas supply device including an assist gas supply tube that supplies an assist gas in the middle of the sterilization gas supply tube. 上記貯留霧化タンク内の殺菌液の液面を検出する液面検出装置,および
上記液面検出装置の検出に基づいて,上記貯留霧化タンク内の殺菌液の液面が常にほぼ一定となるように殺菌液を供給する殺菌液供給装置をさらに備える,請求項1から7のいずれか一項に記載の殺菌装置。
Based on the detection of the liquid level of the sterilizing liquid in the storage atomization tank and the detection of the liquid level detection apparatus, the liquid level of the sterilizing liquid in the storage atomization tank is always substantially constant. The sterilizer according to any one of claims 1 to 7, further comprising a sterilizer supply device for supplying the sterilizer as described above.
上記送り出しガス供給管は,上記貯留霧化タンク内の制御された殺菌液の液面よりも上方位置に,水平向きまたは斜め上向きに送り出しガスを吹き出すように,上記貯留霧化タンクの壁面に開口している,請求項6に記載の殺菌装置。   The delivery gas supply pipe is opened on the wall of the storage atomization tank so as to blow the delivery gas horizontally or obliquely upward to a position above the level of the controlled sterilizing liquid in the storage atomization tank. The sterilizer according to claim 6. 上記送り出しガス供給管は上記貯留霧化タンクの壁面の複数箇所に開口している,請求項6または9に記載の殺菌装置。   The sterilizer according to claim 6 or 9, wherein the delivery gas supply pipe is opened at a plurality of locations on the wall surface of the storage atomization tank. 上記殺菌ガス給送管は,殺菌工程付近において複数の支管に分岐し,各支管の先端にそれぞれ上記噴霧ノズルが設けられている,請求項1から10のいずれか一項に記載の殺菌装置。   The sterilizing apparatus according to any one of claims 1 to 10, wherein the sterilizing gas supply pipe branches into a plurality of branch pipes in the vicinity of the sterilization process, and the spray nozzle is provided at a tip of each branch pipe. 殺菌液供給装置に接続された殺菌液供給管の先端が,上記貯留霧化タンク内の制御された殺菌液の液面近くで開口している,請求項8に記載の殺菌装置。   The sterilizing apparatus according to claim 8, wherein a sterilizing liquid supply pipe connected to the sterilizing liquid supply apparatus has an open end near the liquid level of the controlled sterilizing liquid in the storage atomization tank.
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KR102365878B1 (en) * 2021-07-14 2022-02-23 이기복 Deodorizing apparatus for farm house
CN113830467A (en) * 2021-09-18 2021-12-24 青岛宏洋生物科技有限公司 Full-automatic atomization dosing degradation device and working method
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