JP2006263173A - Device for generating high concentration germicidal gas, and circulation type sterilizing method with the germicidal gas - Google Patents

Device for generating high concentration germicidal gas, and circulation type sterilizing method with the germicidal gas Download PDF

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JP2006263173A
JP2006263173A JP2005086034A JP2005086034A JP2006263173A JP 2006263173 A JP2006263173 A JP 2006263173A JP 2005086034 A JP2005086034 A JP 2005086034A JP 2005086034 A JP2005086034 A JP 2005086034A JP 2006263173 A JP2006263173 A JP 2006263173A
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gas
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germicidal
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Kohei Aoyanagi
耕平 青柳
Takamasa Iwaki
隆昌 岩城
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SAN SEAL KK
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SAN SEAL KK
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<P>PROBLEM TO BE SOLVED: To provide a high concentration germicidal gas generating device for efficiently performing sterilizing and disinfecting by generating high concentration germicidal gas and repetitively using the germicidal gas, which shows an antiseptic action, while collecting the gas, and to provide a circulation type sterilizing method. <P>SOLUTION: The high concentration germicidal gas generating device comprises: a tray shape container 10 having a heater 10H on the bottom surface and/or a side surface, so as to receive a gellant for the germicidal gas; a UV radiating means 12 arranged on the upper surface of the tray shape container, so as to radiate a UV ray to the gellant for the germicidal gas; a blow fan 14 for allowing chlorine dioxide gas to flow, which is heated by the heater and made to evaporate by the UV radiating means; a gas discharge port 18 arranged at the positive pressure side of the gas which is made to flow by the blow fan; a gas suction port 16 for at least partially taking-in regression gas passing through an object to be sterilized with the use of negative pressure by the blow fan, so as to circulate the gas; and a casing 20 for enclosing a whole part to be an airtight state by excluding the gas discharge port and the opening part of the gas suction port. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、強力な殺菌効力を発揮する高濃度殺菌性ガスの発生装置及び該高濃度殺菌性ガスによる循環型殺菌方法に関し、特に所望濃度以上の二酸化塩素ガスを用いることにより人畜への影響を出来る限り抑制しながら各種病原菌、各種ウィルス類を強力に殺菌するための高濃度殺菌性ガスの発生装置及び該発生装置によって発生せしめられる高濃度殺菌性ガスによる循環型殺菌方法に関する。 The present invention relates to a high concentration sterilizing gas generator that exhibits a strong sterilizing effect and a circulation type sterilization method using the high concentration sterilizing gas, and particularly to the influence on human livestock by using chlorine dioxide gas of a desired concentration or more. The present invention relates to a high concentration bactericidal gas generator for powerfully sterilizing various pathogenic bacteria and various viruses while suppressing as much as possible, and a circulating sterilization method using a high concentration bactericidal gas generated by the generator.

殺菌・消毒・脱臭等を行う媒体としては、従来から多くの種類があり、薬品としてもエチルアルコール、クレゾール、ホルマリン等に代表される液状殺菌剤をはじめ、粉粒状殺菌剤、本来的にもしくは使用にあたって気化させることによって得られる気体状殺菌剤がある。狭小な隙間や重畳物、繊維状などの内部まで殺菌・消毒するには気体状殺菌剤が適していることはよく知られている。例えば、ロッカールーム、病室、寝具、救急車内部等のいわゆる環境殺菌・消毒には気体状殺菌剤による殺菌が有効である。 There are many types of media for sterilization, disinfection, deodorization, etc., and liquid sterilizers such as ethyl alcohol, cresol, formalin, etc., as well as powdered sterilizers, are inherently or used as chemicals. There is a gaseous disinfectant obtained by vaporizing. It is well known that gaseous disinfectants are suitable for disinfecting and disinfecting narrow gaps, superimposed objects, fibers, and the like. For example, sterilization with a gaseous sterilizing agent is effective for so-called environmental sterilization / disinfection of a locker room, a hospital room, bedding, an ambulance, and the like.

このような気体状殺菌剤としても適している殺菌剤の1種として二酸化塩素(ClO2)が知られている。二酸化塩素(ClO2)は、赤黄色のガス(沸点9.9℃)で水に溶け易く、強い酸化作用を示しガス殺菌に適する性質がある。しかし、そのままでは爆発性や腐食性があるため、安定化二酸化塩素として使用されることが多い。安定化二酸化塩素は、ClO2ガスを精製水に溶解しソーダ系の安定化剤加えてpH8.5に調整したもので、ClO25%を含有するする液体製剤では約4%の安定化剤が加えられる。このようにして得られた安定化二酸化塩素の作用は、次亜塩素酸ナトリウムよりもやや緩やかで持続性がある。安定化二酸化塩素の製品としては、5〜15%と0.5%の液体製剤があるが、さらにゼオライトなどに吸着させた粉末製剤、さらに寒天、ゼラチン等に架橋剤を加えることにより得られるゲル化製剤等の各種剤型として市販されている。この種、ゲル状以外の剤型である安定化二酸化塩素を利用する殺菌法にあっては、安定かつ持続的に所望濃度の安定化二酸化塩素ガスを発生させる手法ないし装置が重要となる。 Chlorine dioxide (ClO 2 ) is known as one type of bactericidal agent that is also suitable as such a gaseous bactericidal agent. Chlorine dioxide (ClO 2 ) is a red-yellow gas (boiling point 9.9 ° C.) that is easily dissolved in water, has a strong oxidizing action, and is suitable for gas sterilization. However, since it is explosive and corrosive as it is, it is often used as stabilized chlorine dioxide. Stabilized chlorine dioxide is a solution prepared by dissolving ClO 2 gas in purified water and adding a soda-based stabilizer to a pH of 8.5. In a liquid preparation containing 5% ClO 2 , about 4% stabilizer. Is added. The action of the stabilized chlorine dioxide thus obtained is somewhat slower and more durable than sodium hypochlorite. Stabilized chlorine dioxide products include 5 to 15% and 0.5% liquid preparations, but also powder preparations adsorbed on zeolite, etc., and gels obtained by adding a crosslinking agent to agar, gelatin, etc. It is marketed as various dosage forms, such as a chemical preparation. In this type of sterilization method using stabilized chlorine dioxide which is a dosage form other than gel, a technique or apparatus for generating stabilized chlorine dioxide gas having a desired concentration stably and continuously is important.

安定化二酸化塩素液またはゲル状安定化二酸化塩素を持続的に気化させるための先行技術として、本件出願人に係る特許文献1は、ゲル状または液状の安定化二酸化塩素の表面に対して紫外線を照射することにより紫外線の化学反応促進効果を利用して蒸散させ、ファンにより所望方向に吐出させる、殺菌脱臭ガス供給方法および供給装置を開示している。 As a prior art for continuously vaporizing stabilized chlorine dioxide solution or gel-like stabilized chlorine dioxide, Patent Document 1 relating to the present applicant discloses that ultraviolet rays are applied to the surface of gel-like or liquid stabilized chlorine dioxide. Disclosed is a sterilization deodorizing gas supply method and a supply device that emits radiation by utilizing the chemical reaction promoting effect of ultraviolet rays and discharges it in a desired direction with a fan.

ここで得られる二酸化塩素ガスは、寝具類、衣類、居住空間、病室、救急車内部、事務室、コンピュータルーム、ロッカールーム、列車・バス・航空機・船舶等の客室内等のような人の出入りのある箇所の殺菌に利用される用途にあっては、人畜に対する安全性が担保される濃度でなければならない。かかる事情は、特許文献1の段落0027ないし0030にも開示されており、比較的低濃度の殺菌性ガスを長期にわたり安全性を保持しつつ継続使用する範疇に属するものである。 Chlorine dioxide gas obtained here is used by people such as bedding, clothing, living spaces, hospital rooms, ambulance interiors, office rooms, computer rooms, locker rooms, trains, buses, aircraft, ships, etc. In applications that are used for sterilization of certain locations, the concentration must be such that safety against human livestock is ensured. Such circumstances are also disclosed in paragraphs 0027 to 0030 of Patent Document 1, and belong to a category in which a relatively low concentration of sterilizing gas is continuously used while maintaining safety over a long period of time.

一方、比較的短時間で強力な殺菌作用を期待する用途もある。例えば、病院、救急車その他の救急施設、老人施設、介護施設その他各種、研究施設、食品工場、学校等々で使用される各種機器及び設備類を、定期的に確実に殺菌・消毒するようなケースにあっては、半日とか一昼夜とかの所定時間にわたり完全に無人ないし無生物の状態としておき、その間に確実に実施する必要がある。かかる用途にあっては、比較的高濃度の強力な殺菌ガスを使用し、所望時間経過後には安全な雰囲気に復帰するような特性が必要となる。
特開2000−202009号公報
On the other hand, there are applications that expect a strong bactericidal action in a relatively short time. For example, in cases where various devices and equipment used in hospitals, ambulances and other emergency facilities, elderly facilities, nursing care facilities, various research facilities, food factories, schools, etc. are regularly sterilized and disinfected. In that case, it is necessary to leave it completely uninhabited or inanimate for a predetermined period of time such as half a day or all day and to ensure that it is carried out during that time. In such an application, it is necessary to use a strong sterilizing gas having a relatively high concentration and to return to a safe atmosphere after a desired time.
JP 2000-202009 A

本発明は、高濃度の殺菌性ガスを発生せしめるとともに、殺菌作用を発揮した殺菌性ガスを回収しながら繰り返し使用することにより、効率よく殺菌・消毒を行うための、高濃度殺菌性ガスの発生装置及び該高濃度殺菌性ガスの発生装置を利用した循環型殺菌方法を提供することを課題とする。 The present invention generates a high-concentration bactericidal gas and generates a high-concentration bactericidal gas for efficient sterilization and disinfection by repeatedly using a bactericidal gas that exhibits a bactericidal action while collecting it. It is an object of the present invention to provide a circulating sterilization method using an apparatus and a high concentration sterilizing gas generator.

請求項1に記載の発明は、底面及び/又は側面に加熱ヒーター10Hを備え、殺菌性ガスのゲル化剤を受容する皿状容器10と、該皿状容器の上面に配設され、殺菌性ガスのゲル化剤に紫外線を照射するための紫外線照射手段12と、前記加熱ヒーターによる加熱ならびに紫外線照射手段により蒸散せしめられる二酸化塩素ガスを流動せしめる送風ファン14と、該送風ファンにより流動せしめられるガスの正圧側に配設されるガス放出口18と、該送風ファンによる負圧を利用して被殺菌対象を通過した殺菌性ガスを少なくとも部分的に取り込ん循環させるためのガス吸引口16と、これらガス放出口およびガス吸引口の開口部を除き全体を気密状態に包囲するケーシング20と、を備える高濃度殺菌性ガス発生装置であることを特徴とする。 The invention according to claim 1 is provided with a heater 10H on the bottom surface and / or side surface, and receives a sterilizing gas gelling agent 10 and is disposed on the top surface of the dish-like container. Ultraviolet irradiation means 12 for irradiating the gas gelling agent with ultraviolet rays, a blower fan 14 for flowing chlorine dioxide gas evaporated by the heating by the heater and the ultraviolet irradiation means, and a gas flowed by the blower fan A gas discharge port 18 disposed on the positive pressure side of the gas, a gas suction port 16 for taking in and circulating at least partially the sterilizing gas that has passed through the object to be sterilized using the negative pressure of the blower fan, and these A high-concentration sterilizing gas generator comprising: a casing 20 that encloses the whole in an airtight state except for an opening of a gas discharge port and a gas suction port. .

請求項2に記載の発明は、前記殺菌性ガスのゲル化剤が、安定化二酸化塩素のゲル状体である高濃度殺菌性ガス発生装置であることを特徴とする。 The invention described in claim 2 is characterized in that the sterilizing gas gelling agent is a high-concentration sterilizing gas generator, which is a stabilized chlorine dioxide gel.

請求項3に記載の発明は、前記ガス吸引口16及びガス放出口18の少なくとも一方に、それぞれの被殺菌対象に対して気密状態で連結することができる連結用アダプタが接続可能である高濃度殺菌性ガス発生装置であることを特徴とする。 The invention according to claim 3 is a high concentration capable of connecting to at least one of the gas suction port 16 and the gas discharge port 18 with a connection adapter that can be connected to each sterilized object in an airtight state. It is a sterilizing gas generator.

請求項4に記載の発明は、前記高濃度殺菌性ガス発生装置によって発生せしめられた殺菌性ガスを気密状態に維持された被殺菌対象に導入し、該被殺菌対象を通過した殺菌性ガスを可能な限り気密状態を維持しながら前記高濃度殺菌性ガス発生装置に回収して、少なくとも高濃度殺菌性ガスの濃度を低減させることなく確実な殺菌作用を発揮せしめる高濃度殺菌性ガスによる循環型殺菌方法であることを特徴とする。 According to a fourth aspect of the present invention, the sterilizing gas generated by the high-concentration sterilizing gas generator is introduced into an object to be sterilized maintained in an airtight state, and the sterilizing gas that has passed through the object to be sterilized is introduced. Circulating type with high-concentration sterilization gas that can be collected in the high-concentration sterilization gas generator while maintaining the airtight state as much as possible, and at least exerts a certain sterilization effect without reducing the concentration of high-concentration sterilization gas It is a sterilization method.

請求項5に記載の発明は、前記殺菌性ガスとして二酸化塩素ガスを使用する高濃度殺菌性ガスによる循環型殺菌方法であることを特徴とする。 The invention according to claim 5 is a circulation type sterilization method using a high concentration sterilizing gas using chlorine dioxide gas as the sterilizing gas.

請求項6に記載の発明は、前記被殺菌対象が各種研究施設における実験動物飼育ラックである高濃度殺菌性ガスによる循環型殺菌方法であることを特徴とする。 The invention described in claim 6 is characterized in that the object to be sterilized is a circulating sterilization method using a high-concentration sterilizing gas which is a laboratory animal breeding rack in various research facilities.

請求項7に記載の発明は、前記被殺菌対象が各種研究施設における安全キャビネットである高濃度殺菌性ガスによる循環型殺菌方法であることを特徴とする。 The invention described in claim 7 is characterized in that the object to be sterilized is a circulating sterilization method using a high-concentration sterilizing gas which is a safety cabinet in various research facilities.

請求項8に記載の発明は、前記被殺菌対象が、各種研究施設における実験動物飼育ラック又は安全キャビネット等の実験動物を飼育・実験するための設備に配設されるフィルタ、配管等を含む空調設備であることを特徴とする高濃度殺菌性ガスによる循環型殺菌方法である。   The invention according to claim 8 is an air conditioner in which the object to be sterilized includes a filter, piping, and the like disposed in equipment for breeding and experimenting laboratory animals such as laboratory animal breeding racks or safety cabinets in various research facilities. This is a circulation type sterilization method using a high concentration sterilizing gas, which is a facility.

請求項9に記載の発明は、前記被殺菌対象が実験用又は医療用器具、実験用又は医療用手袋・衣類等を収納する滅菌庫であることを特徴とする高濃度殺菌性ガスによる循環型殺菌方法である。   The invention according to claim 9 is characterized in that the object to be sterilized is a sterilization box for storing experimental or medical instruments, experimental or medical gloves, clothes, etc. It is a sterilization method.

請求項10に記載の発明は、前記被殺菌対象が、気密性のある病室、手術室、実験室、救急車内部、食品製造・加工工場及び/又はこれらに配設されるフィルタ、配管等を含む空調設備であることを特徴とする高濃度殺菌性ガスによる循環型殺菌方法である。 According to a tenth aspect of the present invention, the object to be sterilized includes an airtight hospital room, an operating room, a laboratory, an ambulance, a food manufacturing / processing factory, and / or a filter, a pipe, and the like disposed in the room. A circulation type sterilization method using a high-concentration sterilizing gas, which is an air conditioning facility.

本発明に係る高濃度殺菌性ガスの発生装置は、殺菌性ガスのゲル化剤を受容する皿状容器の底面及び/又は側面に加熱ヒーターを配置した結果、殺菌性ガスのゲル化剤にとって最適の加熱温度を与え、さらに上表面から紫外線を照射する。その結果、高い効率で殺菌性ガスを発生せしめることができる。特に好適な実施例としてあげる安定化二酸化塩素のゲル状体にあっては、加熱ヒーターによる約80度の加熱温度および紫外線照射手段として27W紫外線ランプ1灯を用いることにより、高濃度の二酸化塩素ガスを発生せしめることができた。 The high-concentration germicidal gas generator according to the present invention is optimal for a germicidal gas gelling agent as a result of arranging a heater on the bottom and / or side of a dish-like container that receives the germicidal gas gelling agent. Is applied, and ultraviolet rays are irradiated from the upper surface. As a result, sterilizing gas can be generated with high efficiency. In the case of a stabilized chlorine dioxide gel as a particularly preferred embodiment, a high-concentration chlorine dioxide gas can be obtained by using a heating temperature of about 80 degrees by a heater and one 27W ultraviolet lamp as an ultraviolet irradiation means. Could be generated.

このようにして得られる高濃度の殺菌性ガスは、年に1回又は2回等のように時期的または回数などの定められた定期的殺菌の実施などの際における使用に適する。かかる用途としては、医学、薬学、衛生学、遺伝学、栄養学、バイオテクノロジー等の諸研究・実験分野において、マウス、ラット、モルモット、うさぎ等の実験動物を飼育・実験するための設備、例えば飼育ラック、クリーンラック、安全キャビネット(以下、「実験動物飼育設備」ともいう)などに対する定期的な清掃及び殺菌処理を行う例が挙げられる。 The high-concentration bactericidal gas thus obtained is suitable for use in carrying out periodic sterilization that is determined in terms of time or frequency, such as once or twice a year. Examples of such applications include facilities for breeding and experimenting laboratory animals such as mice, rats, guinea pigs, and rabbits in various research and experimental fields such as medicine, pharmacy, hygiene, genetics, nutrition, and biotechnology. Examples include regular cleaning and sterilization treatment of breeding racks, clean racks, safety cabinets (hereinafter also referred to as “lab animal breeding equipment”), and the like.

このような実験動物飼育設備は、実験動物に対して外部と隔離した環境で所要細菌類・ウィルス等を感染させ、その後の経過を長期にわたり観察し、さらにある群には加重負荷を与え、他の群には治癒の処置を施して経過を観察する等を目的とするものであるから、設置室内や外部からの不所望な細菌類やウィルス類に感染する事態は絶対に回避されなければならない。一方、実験動物から危険な細菌やウィルス等が研究者・実験担当者・飼育担当者等に直接にまたは空気を介して感染する事態も完全に阻止しなければならない。そのため、設置室内の気流や排気等も厳格に管理されなければならない。 Such experimental animal breeding equipment infects experimental animals with necessary bacteria and viruses in an environment isolated from the outside, observes the subsequent course over a long period of time, and gives a certain group a weighted load. Since the purpose of this group is to observe the progress of healing, etc., it is absolutely necessary to avoid the situation of being infected with unwanted bacteria and viruses from the installation room and outside. . On the other hand, it is necessary to completely prevent the situation where dangerous bacteria and viruses from laboratory animals are transmitted to researchers, experimenters, breeders, etc. directly or through the air. For this reason, the air flow and exhaust in the installation room must be strictly managed.

したがって、実験動物飼育設備に対する通気設備には、細菌類の通過を確実に阻止する高機能フィルタの設置が必須となる。この種の高機能フィルタとして、HEPAフィルタ(超高性能エアフィルタ;High Efficiency Particulate Air Filter)がある。このHEPAフィルタは、粒径0.3μmのジオクタルフタレート(DOP)粒子を99.97%以上の効率で捕集する性能を備えたものをいい、製薬会社、食品・バイオ関連会社、原子力再処理施設、医療機関および研究機関等のアイソトープ使用室の安全性確保の上でも不可欠となっている。濾材としては、パルプ材、ガラス繊維材、ガラス繊維と合成繊維による複合材などが使用される。このようなHEPAフィルタが吸気口および排気口に設置されている実験動物飼育設備を、毎年1回殺菌消毒処理を行う場合、飼育設備本体はもとより高機能フィルタも完全に殺菌消毒されなければならない。 Therefore, it is indispensable to install a high-function filter that reliably prevents the passage of bacteria in the ventilation equipment for laboratory animal breeding equipment. As this type of high-performance filter, there is a HEPA filter (High Efficiency Particulate Air Filter). This HEPA filter has the ability to collect dioctal phthalate (DOP) particles with a particle size of 0.3μm with an efficiency of 99.97% or more. It is a pharmaceutical company, food / bio-related company, nuclear reprocessing It is indispensable for ensuring the safety of isotope rooms in facilities, medical institutions, and research institutions. As the filter medium, pulp material, glass fiber material, composite material of glass fiber and synthetic fiber, and the like are used. When experimental animal breeding equipment in which such HEPA filters are installed at the intake and exhaust ports is sterilized once a year, not only the breeding equipment itself but also the high-functional filter must be completely sterilized.

さらに、殺菌処理の終了後には殺菌性ガス等の媒体の残留成分が出来るだけ少ないことが望ましい。この種フィルタを備えた実験動物飼育設備に対する定期的な殺菌処理には、従来ホルマリン蒸気を生成し手施設内に滞留させもしくは循環させる、いわゆるホルマリン蒸気殺菌法が広く採用されていた。ホルマリン蒸気殺菌法を利用する場合は、1)殺菌力が弱い、2)気中水分と反応して粘性ミストとなり易く高機能フィルタに目詰まりを起こす、3)不快感を催す強い刺激臭を発する、4)殺菌成分の残留期間が長く、飼育再開までに1〜2週程度の長期間を要する、などの問題点が指摘されていた。かかる問題点は、本発明において利用可能な二酸化塩素ガスを採用することにより全て解消可能である。 Furthermore, it is desirable that the residual components of the medium such as the sterilizing gas be as small as possible after the sterilization treatment is completed. Conventionally, a so-called formalin vapor sterilization method in which formalin vapor is generated and retained or circulated in a hand facility has been widely used for periodic sterilization treatment for laboratory animal breeding equipment equipped with this kind of filter. When using the formalin steam sterilization method, 1) weak sterilization power, 2) reacts with moisture in the air, easily becomes viscous mist, clogs the high-functional filter, and 3) emits a strong irritating odor that causes discomfort. 4) It has been pointed out that the sterilizing component has a long remaining period and requires a long period of about 1 to 2 weeks to resume breeding. All of these problems can be solved by employing chlorine dioxide gas that can be used in the present invention.

本発明に係る高濃度殺菌性ガスの発生装置における発生対象ガスとして適する二酸化塩素ガスは、低濃度において人畜にほとんど影響を与えない範囲においても恒常的な殺菌効果を発揮することが知られているが、高濃度とすることにより短時間で強力な殺菌効果を発揮する。例えば、ガス濃度30mg/リットル、作用時間40分、相対湿度85%、22〜30℃の条件において枯草菌(B.sublilis)胞子を死滅させることができる。さらにイオウ系、アミン系臭気物質に対する脱臭効果も期待できる。そしてこのような強力な殺菌効果や脱臭効果はガスの存在下において顕著であり、供給停止後の残留は極めて限定的なものとなる。 It is known that chlorine dioxide gas suitable as a generation target gas in the high concentration sterilizing gas generator according to the present invention exerts a permanent sterilizing effect even in a range that hardly affects human livestock at a low concentration. However, a high bactericidal effect is demonstrated in a short time by making it high concentration. For example, B. sublilis spores can be killed under conditions of a gas concentration of 30 mg / liter, an action time of 40 minutes, a relative humidity of 85%, and a temperature of 22 to 30 ° C. Furthermore, a deodorizing effect on sulfur-based and amine-based odorous substances can be expected. Such a strong sterilizing effect and deodorizing effect are remarkable in the presence of gas, and the residue after the supply is stopped becomes extremely limited.

したがって、短期間に強力な殺菌作用を発揮し、ガス供給を停止後12時間〜24時間程度の放置により人畜に対する悪影響は無視し得る状態となる。また、不快臭や刺激臭もほとんどなく、元来脆弱な幼少実験動物に対する悪影響も少ない。かかる特性を有する殺菌性ガスを所定濃度以上、例えば30ppmとして、ガス発生装置のガス放出口から被殺菌対象の吸気フィルタを介して内部に導入し、該被殺菌対象を一巡した殺菌性ガスの排気フィルタを経てガス発生装置のガス吸引口から回収する循環型殺菌方法によって所期の目的を好適に達成できる。本発明に係るこのような循環型殺菌方法によれば、時間経過と共にガス濃度を低減させることなく、むしろ上昇させつつ、より効果的な殺菌処理が期待できる。 Therefore, a strong bactericidal action is exhibited in a short time, and the adverse effect on human livestock can be neglected by leaving the gas supply for about 12 to 24 hours. In addition, there are almost no unpleasant odors and irritating odors, and there are few adverse effects on the originally vulnerable young experimental animals. The sterilizing gas having such characteristics is set to a predetermined concentration or more, for example, 30 ppm, and introduced into the inside of the gas sterilization target through the intake filter to be sterilized and exhausted through the sterilization target. The intended purpose can be suitably achieved by the circulation type sterilization method of collecting from the gas suction port of the gas generator through the filter. According to such a circulation type sterilization method according to the present invention, a more effective sterilization treatment can be expected while increasing rather than reducing the gas concentration over time.

また、本発明に係る高濃度殺菌性ガスによる循環型殺菌方法は、気密性のある小規模空間である医療器具等を収納する滅菌庫のみでなく、病室、手術室、実験室、救急車内部、食品製造・加工工場等の比較的大規模の空間に対しても用いることができる。さらには、本発明に係る循環型殺菌方法は、居住空間、コンピュータルーム、ロッカー、倉庫等の病害虫の滅菌・防除・消臭の他に、列車・バス・航空機等の輸送機関室内・機内等、ビニールハウス内等々の滅菌・消毒・消臭等に用いることができる。 In addition, the circulatory sterilization method using the high-concentration sterilizing gas according to the present invention is not only a sterilization chamber for storing medical instruments that are airtight small-scale spaces, but also in a hospital room, operating room, laboratory, ambulance, It can also be used for relatively large spaces such as food manufacturing and processing factories. Furthermore, the circulation type sterilization method according to the present invention includes sterilization / control / deodorization of pests in living spaces, computer rooms, lockers, warehouses, etc., as well as in transport cabins and cabins such as trains, buses and aircraft, It can be used for sterilization, disinfection, deodorization, etc. in the greenhouse.

以下、添付図を参照しつつ本発明の実施例について開示する。図1は、本発明に係る高濃度殺菌性ガス発生装置を示す正面図(A)および図AのX−Y矢視平断面図(B)である。1点鎖線で示したケーシング20内には殺菌性ガスのゲル化剤を受容する皿状容器10と、該皿状容器の上面に配設され、殺菌性ガスのゲル化剤表面に対して紫外線を照射するための紫外線照射手段12と、送風ファン14が配設されている。皿状容器10の周囲壁または底面のいずれか一方または双方には加熱ヒーター10Hが配設される。 Hereinafter, embodiments of the present invention will be disclosed with reference to the accompanying drawings. FIG. 1: is the front view (A) which shows the high concentration bactericidal gas generator which concerns on this invention, and XY arrow plane sectional view (B) of FIG. A. A casing 20 indicated by a one-dot chain line is provided with a dish-like container 10 for receiving a germicidal gas gelling agent and an upper surface of the dish-like container. The ultraviolet irradiation means 12 and the blower fan 14 are disposed. A heater 10 </ b> H is disposed on one or both of the peripheral wall and the bottom surface of the dish-like container 10.

さらに、発生した殺菌性ガスを送出するための送風ファン14が設置され、ケーシング20に形成された回帰ガス吸引口16から殺菌性ガスの放出口18に向けて流動する気流を発生させる。ケーシング20は、気密性、耐熱性、耐食性などに優れた素材が好ましく、例えばステンレススチール板製が適しているが、形状は箱状、筒状等いずれでもよい。なお、図1におけるガス吸引口16および放出口18は本体を絞り込んでいるが、種々の形態を有する被殺菌対象に適合せしめるためのアダプタ考慮したものであり、図に示した形状に限定されるものではない。 Further, a blower fan 14 for sending out the generated sterilizing gas is installed to generate an air flow that flows from the return gas suction port 16 formed in the casing 20 toward the sterilizing gas discharge port 18. The casing 20 is preferably made of a material excellent in airtightness, heat resistance, corrosion resistance, and the like. For example, a stainless steel plate is suitable, but the shape may be any of a box shape, a cylindrical shape, and the like. In addition, although the gas suction port 16 and the discharge port 18 in FIG. 1 have narrowed down the main body, it considers the adapter for adapting to the to-be-sterilized object which has various forms, and is limited to the shape shown in the figure. It is not a thing.

図2は、図1に示した殺菌性ガス発生装置により、実験動物飼育設備をイメージした被殺菌対象設備30を殺菌する状態を示す実施例である。本実施例における「被殺菌対象設備」である実験動物飼育ラックは、図左側の吸気部のHEPAフィルタ26および右側の排気部にHEPAフィルタ28を備えており、空気感染の防止のためにこれら吸気部から排気部までの間が気密状態に形成されている気密形設備であることを前提としている。しかし、このような気密型ではない被殺菌対象設備であっても、全体をプラスチックフィルム等で包囲し、さらに目張りをすることによって上記と同様に適用することが可能である。 FIG. 2 is an example showing a state in which the facility 30 to be sterilized, which is modeled on experimental animal breeding equipment, is sterilized by the sterilizing gas generator shown in FIG. The laboratory animal breeding rack, which is the “equipment to be sterilized” in the present embodiment, is provided with the HEPA filter 26 on the left side of the drawing and the HEPA filter 28 on the right side of the drawing. It is assumed that this is an airtight facility in which the space from the exhaust section to the exhaust section is formed in an airtight state. However, even such non-airtight type equipment to be sterilized can be applied in the same manner as described above by surrounding the whole with a plastic film or the like, and further staking.

また、本発明に係る殺菌性ガス発生装置により殺菌処理する対象(被殺菌対象設備)としては、実験動物飼育ラックに限定されるものではなく、実験動物に対してウィルス等を感染させる等の実験処理を行うための安全キャビネットやこのような実験動物を飼育・実験するための設備に配設されるフィルタ、配管等を含む空調設備がある。   In addition, the object to be sterilized by the sterilizing gas generator according to the present invention (equipment to be sterilized) is not limited to a laboratory animal breeding rack, but an experiment such as infecting a laboratory animal with a virus or the like. There are air-conditioning equipment including filters, pipes and the like arranged in a safety cabinet for processing and equipment for breeding and experimenting such experimental animals.

さらに、被殺菌対象設備としては、実験用又は医療用器具、実験用又は医療用手袋・衣類等を収納する気密性のある小規模空間である滅菌庫、そして気密性を有する比較的大規模の空間である病室、手術室、実験室、救急車内部、食品製造・加工工場、及びこれらに配設されるフィルタ、配管等を含む空調設備等がある。さらに本発明に係る殺菌性ガス発生装置は、居住空間、コンピュータルーム、ロッカー、倉庫等の病害虫の滅菌・防除・消臭の他に、列車・バス・航空機等の輸送機関室内・機内等、ビニールハウス内等々の滅菌・消毒・消臭等に用いることができる。 Furthermore, as the equipment to be sterilized, there are sterilization cabinets that are small-scale airtight spaces for storing laboratory or medical instruments, laboratory or medical gloves and clothes, etc., and relatively large-scale airtight. There are hospital rooms, operating rooms, laboratories, ambulance interiors, food manufacturing and processing factories, and air conditioning equipment including filters, pipes and the like disposed in these spaces. Furthermore, the sterilizing gas generator according to the present invention is used for the sterilization / control / deodorization of pests in living spaces, computer rooms, lockers, warehouses, etc. It can be used for sterilization, disinfection, deodorization, etc. in the house.

図2において、殺菌性ガス発生装置のケーシング20の吸引口16側には被殺菌対象設備の排気側HEPAフィルタ28の外部に接続するための吸引口側アダプタ24が介在せしめられる。また、ケーシング20の放出口18側には被殺菌対象設備の吸気側HEPAフィルタ26の外部に接続するための放出口側アダプタ22が介在せしめられる。これらの吸引口側アダプタ24および放出口側アダプタ22は、被殺菌対象設備のそれぞれに応じて接続可能な形態ならびに構造に形成される。 In FIG. 2, a suction port side adapter 24 for connecting to the outside of the exhaust side HEPA filter 28 of the facility to be sterilized is interposed on the suction port 16 side of the casing 20 of the sterilizing gas generator. In addition, a discharge port side adapter 22 for connecting to the outside of the intake side HEPA filter 26 of the facility to be sterilized is interposed on the discharge port 18 side of the casing 20. These suction port side adapter 24 and discharge port side adapter 22 are formed in the form and structure which can be connected according to each to-be-sterilized installation.

したがって、これら両アダプタ22、24をそれぞれの被殺菌対象設備ごとに用意することにより、多種の対象設備に適合せしめることができる。なお、図2ではHEPAフィルタ26、28をいずれも装着したまま処理をするような図解となっているが、状況に応じて一方または双方のフィルタを取り外して設備本体の殺菌処理を行い、HEPAフィルタについては別途処理を行い、あるいは新規フィルタと交換するような構成でもよい。 Therefore, by preparing both adapters 22 and 24 for each facility to be sterilized, it is possible to adapt to various types of target facilities. In FIG. 2, the processing is performed with both the HEPA filters 26 and 28 attached. However, depending on the situation, one or both of the filters may be removed to sterilize the equipment body, and the HEPA filter The configuration may be such that separate processing is performed or a new filter is replaced.

図2に示すような構成により行われる高濃度殺菌性ガスによる殺菌方法を実施するに際しては、殺菌性ガス発生装置の外観、機械的ないし物理的構造に関しては大きな制約はない。ケーシング20の構造、寸法等は過度に厳格である必要もなく、方形、円筒体、多角形筒状体等適宜形状を採用することができる。これらの差異に関しては、図2に示した放出口側アダプタ22および吸引口側アダプタ24の形状および構造を被殺菌対象設備毎に最良の形態で構成しておくことにより対応可能である。 When carrying out the sterilization method using the high-concentration sterilization gas performed as shown in FIG. 2, there are no major restrictions on the appearance, mechanical or physical structure of the sterilization gas generator. The structure, dimensions, and the like of the casing 20 do not need to be excessively strict, and a suitable shape such as a square, a cylindrical body, or a polygonal cylindrical body can be employed. These differences can be dealt with by configuring the shapes and structures of the discharge port side adapter 22 and the suction port side adapter 24 shown in FIG. 2 in the best mode for each facility to be sterilized.

例えば、実験室内に設置されている設備が同一メーカーの同一形式であれば、それに合わせて製造された各アダプタ22、24を用意しておき、順次繰返して殺菌処理を実行すればよい。メーカーや形式が異なる場合は、それぞれ接続部の構造を考慮して両アダプタ22、24を用意しておき、実施の都度最適のものを選択しながら実行すればよい。アダプタの形状や構造に関する制約もなく、プラスチック、金属、ゴムその他素材を組合わせ、成形加工、溶接、接着等により加工し、さらにダクト、可撓性管材、エルボ、フランジ等部品を利用して、被殺菌対象設備と、殺菌ガス発生装置のそれぞれに適合する形状および構造に形成すればよい。 For example, if the equipment installed in the laboratory is the same type of the same manufacturer, the adapters 22 and 24 manufactured according to the same type are prepared, and the sterilization process may be repeated sequentially. When the manufacturer or the model is different, both adapters 22 and 24 are prepared in consideration of the structure of the connecting portion, and each adapter may be executed while selecting the optimum one each time. There is no restriction on the shape and structure of the adapter, plastic, metal, rubber and other materials are combined, processed by molding, welding, bonding, etc., and further using parts such as ducts, flexible pipes, elbows, flanges, What is necessary is just to form in the shape and structure which adapt to each of the to-be-sterilized equipment and the sterilization gas generator.

また、単位時間あたりの殺菌性ガスの発生量、したがってガス発生能力については使用の想定される被殺菌対象設備の全容積、殺菌処理に用する正味時間等を考慮して予め決定すべきものである。なお、大形大容量の装置を形成しておき、被殺菌対象設備の規模、殺菌対象容積設備の大小等に応じて、例えば加熱温度や紫外線照射時間を段階的もしくは連続的に調整する等により、現状に合わせて調製するようにしてもよい。 In addition, the amount of sterilizing gas generated per unit time, and therefore the gas generation capacity, should be determined in advance in consideration of the total volume of the equipment to be sterilized that is assumed to be used, the net time used for sterilization processing, and the like. . In addition, by forming a large and large-capacity apparatus, depending on the scale of the facility to be sterilized, the size of the volume facility to be sterilized, etc., for example, by adjusting the heating temperature or ultraviolet irradiation time stepwise or continuously, etc. Alternatively, it may be prepared according to the current situation.

以上のような図1および図2のような構造を基礎として、図3に示すような小動物用区画が5段4列(=20区画)のT−CH−M1形マウス用クリーンフードの1区画に親子マウスを入れた状態で殺菌処理した実施例について開示する。
被殺菌処理設備:マウス用クリーンフード(トキワ科学器械株式会社製T−CH−M1)
使用ガス:ClO2(二酸化塩素ガス)
殺菌性ガス発生装置の諸元:
ガス発生器ケーシング容積:1.4504立法メートル
安定化二酸化塩素ゲル容器寸法:213mm×82mm×43mm
安定化二酸化塩素ゲル(基材含量5%、25000ppm):230g
紫外線照射手段:27W紫外線ランプ点灯
加熱ヒーター:80℃定温設定
インジケーター:3M社製 EOG滅菌用枯草菌インジケーターNo.1294
:設置位置は図3の〔A〕位置
配置したラット:母ラット、子供ラット(生後3日)15匹
:配置ラック左端列上から2段目、図3の〔B〕位置
ガス検知器 :ガステック社製 8Hおよび8La
:図3の〔C〕位置
上記条件において、3時間にわたり試験を行ったガス濃度推移、安定化二酸化塩素ゲル温度の変化、および備考は表1の通りであった。なお、本試験においては、被殺菌処理設備である「マウス用クリーンフード」に気流循環用送風ファンが内蔵されており、ガス発生器側のファンと重複するため、ガス発生器側ファンは停止させ、送風ファンのみを作動させて試験を行った。
Based on the structure shown in FIGS. 1 and 2 as described above, one compartment of a clean food for a T-CH-M1 mouse having five rows and four rows (= 20 compartments) as shown in FIG. An embodiment in which a sterilization treatment is performed with a parent and child mouse placed in is disclosed.
Sterilized treatment equipment: Clean food for mice (T-CH-M1 manufactured by Tokiwa Scientific Instruments Co., Ltd.)
Gas used: ClO 2 (chlorine dioxide gas)
Specifications of sterilizing gas generator:
Gas generator casing volume: 1.4504 cubic meters Stabilized chlorine dioxide gel container Dimensions: 213 mm x 82 mm x 43 mm
Stabilized chlorine dioxide gel (base content 5%, 25000 ppm): 230 g
UV irradiation means: 27W UV lamp lighting Heater: 80 ° C constant temperature setting Indicator: Bacillus subtilis indicator No. for EOG sterilization manufactured by 3M 1294
: Installation position is [A] position in FIG. 3 Arranged rats: Mother rat, 15 child rats (3 days after birth)
: Second stage from the upper left row of the arrangement rack, [B] position in FIG. 3 Gas detector: 8H and 8La manufactured by Gastec Corporation
: [C] position in FIG. 3 Table 1 shows the change in gas concentration, the change in stabilized chlorine dioxide gel temperature, and the remarks tested for 3 hours under the above conditions. In this test, the “air circulator fan” is built in the “clean hood for mice”, which is the sterilization equipment, and it overlaps with the fan on the gas generator side. The test was conducted by operating only the blower fan.

Figure 2006263173
Figure 2006263173

本発明に係る殺菌性ガス発生装置は、本実施例によれば試験開始後約30分で二酸化塩素ガスにおける殺菌性に必要となるガス濃度30ppmに到達し、その後1時間45分程度までガス濃度が高まることが確認できた。以後は、安定化二酸化塩素ゲル状体の温度を調節するなどにより、ガス濃度を抑制するよう制御した。 According to the present embodiment, the sterilizing gas generator according to the present invention reaches a gas concentration of 30 ppm required for sterilization in chlorine dioxide gas in about 30 minutes after the start of the test, and thereafter the gas concentration until about 1 hour and 45 minutes. Was confirmed to increase. Thereafter, the gas concentration was controlled to be suppressed by adjusting the temperature of the stabilized chlorine dioxide gel.

一方、備考覧はラック位置〔B〕に配置された母ラット1匹および生後3日の子ラット15匹の行動を書き留めたものである。15分で母親ラットが子ラットの群れから離れ、30分に床敷内に潜り込んだのは、平常とは異なるガス流に驚いたものと解される。その後、1時間15分で母親ラットが床敷から出てきたのはガス流にも慣れたものと思われる。そして、試験開始後3時間でも母親ラットおよび15匹の子ラット全て生存で、格別変調は認められなかった。ホルマリン蒸気による殺菌処理では、殺菌処理後1週間以上放置した後でも、脆弱な子ラットは死亡することがあったことを考慮すると、極めて高い安全性があることが理解できる。なお、インジケーター設置場所〔A〕に設置しておいたEOG滅菌用枯草菌インジケーターは「陰性」を示していた。 On the other hand, the remarks list is a note of the behavior of one mother rat and 15 three-day-old pups placed at rack position [B]. The fact that the mother rat left the flock of rats in 15 minutes and dive into the bedding in 30 minutes is surprising to the gas flow different from normal. After that, the mother rat came out of the floor at 1 hour and 15 minutes. Even after 3 hours from the start of the test, all the mother rats and 15 pups survived, and no particular modulation was observed. It can be understood that the sterilization treatment with formalin vapor has extremely high safety in consideration of the fact that vulnerable pups may die even after being left for one week or more after the sterilization treatment. In addition, the Bacillus subtilis indicator for EOG sterilization installed in the indicator installation place [A] showed “negative”.

本発明に係る高濃度殺菌性ガスの発生装置及び該高濃度殺菌性ガスによる循環型殺菌方法は、実施例に示すような実験動物飼育ラックに止まらず、医療関係、薬品関係、バイオテクノロジー関係等に関し、高い安全性を保ちながらある程度閉鎖可能であって吸排気の循環が可能な空間に対して強力な殺菌効果が期待できる。このように被殺菌対象設備に対して殺菌性ガスによる雰囲気を循環させる構成を採用した結果、殺菌ガスを短時間に所定濃度まで高めることができ、短時間に効率的な殺菌処理が可能となる。また、殺菌性ガスとして二酸化塩素ガスを採用することにより殺菌処理終了後の残留ガスによる悪影響も短時間においてほとんど問題にならないレベルに低減されることが確認できている。 The high-concentration bactericidal gas generator and the circulation-type sterilization method using the high-concentration bactericidal gas according to the present invention are not limited to laboratory animal breeding racks as shown in the examples, but are related to medical, pharmaceutical, biotechnology, etc. On the other hand, a strong sterilizing effect can be expected for a space that can be closed to some extent while maintaining high safety and can circulate intake and exhaust. As a result of adopting a configuration in which the atmosphere of the sterilizing gas is circulated with respect to the equipment to be sterilized as described above, the sterilizing gas can be increased to a predetermined concentration in a short time, and an efficient sterilization process can be performed in a short time. . In addition, it has been confirmed that by using chlorine dioxide gas as the sterilizing gas, the adverse effect of the residual gas after the sterilization treatment is reduced to a level that hardly causes a problem in a short time.

本発明に係る高濃度殺菌性ガスの発生装置及び該高濃度殺菌性ガスによる循環型殺菌方法によれば、安全キャビネット、実験動物を飼育・実験するための設備に配設されるフィルタ、配管等を含む空調設備、実験用又は医療用器具等を収納する滅菌庫、さらには気密性を有する比較的大規模の空間である病室、手術室等、これら設備の空調設備等、広範な空間の殺菌処理が可能となる。 According to the high concentration sterilizing gas generating apparatus and the circulating sterilization method using the high concentration sterilizing gas according to the present invention, a safety cabinet, a filter, a pipe, and the like disposed in a facility for breeding and experimenting experimental animals Sterilization of a wide range of space such as air-conditioning equipment, laboratory sterilization chambers for storing medical equipment, and air-conditioning equipment for hospital rooms, operating rooms, etc. that are relatively large spaces with airtightness Processing is possible.

本発明に係る高濃度殺菌性ガス発生装置の構成例を示す正面図(A)及び図AのX−Y矢視平断面図(B)である。It is the front view (A) which shows the structural example of the high concentration bactericidal gas generator which concerns on this invention, and XY arrow plane sectional view (B) of FIG. A. 本発明に係る高濃度殺菌性ガス発生装置を用いた循環型殺菌処理方法の実施例を示す構成図である。It is a block diagram which shows the Example of the circulation type sterilization processing method using the high concentration germicidal gas generator which concerns on this invention. 本発明の実施例の構成説明図である。1 is a configuration explanatory diagram of an embodiment of the present invention.

符号の説明Explanation of symbols

10 皿状容器
10H 加熱ヒーター
12 紫外線照射手段
14 送風ファン
16 殺菌性ガス吸引口
18 殺菌性ガス放出口
20 殺菌性ガス発生装置(ケーシング)
22 放出口側アダプタ
24 吸引口側アダプタ
26、28 HEPAフィルタ
30 被殺菌対象設備
DESCRIPTION OF SYMBOLS 10 Dish container 10H Heating heater 12 Ultraviolet irradiation means 14 Blower fan 16 Bactericidal gas suction port 18 Bactericidal gas discharge port 20 Bactericidal gas generator (casing)
22 Discharge port side adapter 24 Suction port side adapter 26, 28 HEPA filter 30 Equipment to be sterilized

Claims (10)

底面及び/又は側面に加熱ヒーターを備え、殺菌性ガスのゲル化剤を受容する皿状容器と、該皿状容器の上面に配設され、殺菌性ガスのゲル化剤に紫外線を照射するための紫外線照射手段と、前記加熱ヒーターによる加熱ならびに紫外線照射手段により蒸散せしめられる二酸化塩素ガスを流動せしめる送風ファンと、該送風ファンにより流動せしめられるガスの正圧側に配設されるガス放出口と、該送風ファンによる負圧を利用して被殺菌対象を通過した回帰ガスを少なくとも部分的に取り込んで循環させるためのガス吸引口と、これらガス放出口およびガス吸引口の開口部を除き全体を気密状態に包囲するケーシングと、を備えることを特徴とする高濃度殺菌性ガス発生装置。   A dish-like container provided with a heater on the bottom and / or side surface and receiving a germicidal gas gelling agent, and disposed on the top surface of the dish-like container for irradiating ultraviolet rays to the germicidal gas gelling agent An ultraviolet irradiation means, a blower fan for flowing chlorine dioxide gas evaporated by the heater and the ultraviolet irradiation means, a gas discharge port disposed on the positive pressure side of the gas flowed by the blower fan, A gas suction port for at least partially taking in and circulating the return gas that has passed through the object to be sterilized using the negative pressure generated by the blower fan, and the gas exhaust port and the opening portion of the gas suction port are entirely airtight. And a casing that surrounds the state, and a high-concentration germicidal gas generator. 前記殺菌性ガスのゲル化剤が安定化二酸化塩素のゲル状体である、ことを特徴とする請求項1に記載の高濃度殺菌性ガス発生装置。 2. The high-concentration germicidal gas generator according to claim 1, wherein the gelling agent for the germicidal gas is a stabilized chlorine dioxide gel. 前記ガス吸引口及びガス放出口の少なくとも一方に、それぞれの被殺菌対象に対して気密状態で連結することができる連結用アダプタが接続可能である、ことを特徴とする請求項1または2のいずれかに記載の高濃度殺菌性ガス発生装置。   Either of the gas suction port and the gas discharge port can be connected to an adapter for connection that can be connected in an airtight state to each object to be sterilized. The high concentration germicidal gas generator according to the above. 高濃度殺菌性ガス発生装置によって発生せしめられた殺菌性ガスを気密状態に維持された被殺菌対象に導入し、該被殺菌対象を通過した殺菌性回帰ガスを可能な限り気密状態を維持しながら前記高濃度殺菌性ガス発生装置に回収して、少なくとも高濃度殺菌性ガスの濃度を低減させることなく確実な殺菌作用を発揮せしめる、ことを特徴とする高濃度殺菌性ガスによる循環型殺菌方法。   While introducing the sterilizing gas generated by the high-concentration sterilizing gas generator into the object to be sterilized that is maintained in an airtight state, the sterilizing return gas that has passed through the object to be sterilized is maintained as airtight as possible. A circulating sterilization method using a high-concentration sterilizing gas, which is collected in the high-concentration sterilizing gas generator and exhibits a reliable sterilizing action without reducing the concentration of at least the high-concentration sterilizing gas. 前記殺菌性ガスとして二酸化塩素ガスを使用する、ことを特徴とする請求項4に記載の高濃度殺菌性ガスによる循環型殺菌方法。   5. The circulating sterilization method using a high concentration sterilizing gas according to claim 4, wherein chlorine dioxide gas is used as the sterilizing gas. 前記被殺菌対象が各種研究施設における実験動物飼育ラックである、ことを特徴とする請求項4または5のいずれかに記載の高濃度殺菌性ガスによる循環型殺菌方法。   6. The circulating sterilization method using a high-concentration sterilizing gas according to claim 4, wherein the object to be sterilized is a laboratory animal breeding rack in various research facilities. 前記被殺菌対象が各種研究施設における安全キャビネットである、ことを特徴とする請求項4または5のいずれかに記載の高濃度殺菌性ガスによる循環型殺菌方法。   The circulating sterilization method using a high-concentration sterilizing gas according to claim 4, wherein the object to be sterilized is a safety cabinet in various research facilities. 前記被殺菌対象が、各種研究施設における実験動物飼育ラック又は安全キャビネット等の実験動物を飼育・実験するための設備に配設されるフィルタ、配管等を含む空調設備である、ことを特徴とする請求項4または5のいずれかに記載の高濃度殺菌性ガスによる循環型殺菌方法。   The object to be sterilized is an air conditioner including a filter, a pipe, and the like disposed in a facility for breeding and experimenting laboratory animals such as laboratory animal breeding racks or safety cabinets in various research facilities. The circulation type sterilization method by the high concentration sterilization gas in any one of Claim 4 or 5. 前記被殺菌対象が、実験用又は医療用器具、実験用又は医療用手袋・衣類等を収納する滅菌庫である、ことを特徴とする請求項4または5のいずれかに記載の高濃度殺菌性ガスによる循環型殺菌方法。   6. The high-concentration sterilization property according to claim 4 or 5, wherein the object to be sterilized is a sterilization box for storing experimental or medical instruments, experimental or medical gloves and clothes, and the like. Circulating sterilization method using gas. 前記被殺菌対象が、気密性のある病室、手術室、実験室、救急車内部、食品製造・加工工場及び/又はこれらに配設されるフィルタ、配管等を含む空調設備である、ことを特徴とする請求項4または5のいずれかに記載の高濃度殺菌性ガスによる循環型殺菌方法。
The object to be sterilized is an air-conditioning facility including an airtight hospital room, an operating room, a laboratory, an ambulance, a food manufacturing / processing factory, and / or a filter, a pipe, and the like disposed in these. A circulating sterilization method using the high concentration sterilizing gas according to claim 4.
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KR101315260B1 (en) * 2011-11-04 2013-10-10 대한민국 An apparatus and methods producing chlorine dioxide gas for prevention and treatment of honey bee diseases containing sacbrood
JP2014226123A (en) * 2013-05-27 2014-12-08 株式会社デンソー Algae culture method
WO2015030387A1 (en) * 2013-08-26 2015-03-05 (주)옥시테라피 Sterilizing apparatus and sterilizing method using wet gaseous chlorine dioxide
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JP2019136198A (en) * 2018-02-07 2019-08-22 高砂熱学工業株式会社 Sterilization device and method using chlorine dioxide gas
JP6993255B2 (en) 2018-02-07 2022-02-04 高砂熱学工業株式会社 Chlorine dioxide gas sterilizer and chlorine dioxide gas sterilization method
CN108452352A (en) * 2018-04-26 2018-08-28 重庆声光电智联电子有限公司 A kind of large space allicin disinfection technique

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