JP2011010702A - Air sterilizing apparatus - Google Patents

Air sterilizing apparatus Download PDF

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JP2011010702A
JP2011010702A JP2009155074A JP2009155074A JP2011010702A JP 2011010702 A JP2011010702 A JP 2011010702A JP 2009155074 A JP2009155074 A JP 2009155074A JP 2009155074 A JP2009155074 A JP 2009155074A JP 2011010702 A JP2011010702 A JP 2011010702A
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water
air
storage tank
gas
contact member
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JP5289215B2 (en
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Atsushi Yamada
淳 山田
Masahiro Izeki
正博 井関
Haruhiko Suzuki
晴彦 鈴木
Hironao Sekine
寛直 関根
Kenta Kizuka
健太 木塚
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Sanyo Electric Co Ltd
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Sanyo Electric Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide an air sterilizing apparatus having improved usability which saves time and effort of a user to supply water, and allows to use a gas-liquid contact member for a long time and facilitates maintenance of the apparatus by reducing attaching of scales.SOLUTION: The air sterilizing apparatus includes a water storage tank 42 for storing circulation water, an electrolyzer 46 for electrolyzing the circulation water stored in the water storage tank and generating electrolytic water containing active oxygen species, a gas-liquid contact member 53 to which the electrolytic water generated by the electrolyzer 46 is supplied, an air blowing fan 31 for sending air to the gas-liquid contact member 53, and an electrolytic water collecting device 42A which collects and returns the electrolytic water in the gas-liquid contact member 53 to the water storage tank. The air sterilization apparatus sterilizes air by contacting air and electrolytic water containing active oxygen species at the gas-liquid contact member 53. The circulation water stored in the water storage tank 42 contains lithium chloride that works as a liquid moisture absorbent.

Description

本発明は、細菌、ウィルス、真菌等の空中浮遊微生物(以下、単に「ウィルス等」という)の除去が可能な空気除菌装置に関する。   The present invention relates to an air sterilization apparatus capable of removing airborne microorganisms (hereinafter simply referred to as “virus etc.”) such as bacteria, viruses and fungi.

従来、水道水等を電気分解して活性酸素種を含む電解水を生成させ、この電解水を用いて空気中に浮遊するウィルス等の除去を図った除菌装置が提案されている(例えば、特許文献1参照)。この除菌装置は、循環水を貯留する貯水槽と、この貯水槽に貯留された循環水を電気分解して活性酸素種を含む電解水を生成する電解装置と、この電解装置によって生成された電解水が供給される気液接触部材と、この気液接触部材に空気を送る送風ファンと、気液接触部材の電解水を前記貯水槽に回収する電解水回収装置とを備え、気液接触部材にて活性酸素種を含む電解水と空気を接触させ、ウィルス等を不活化することにより、空気を除菌しようとするものである。   Conventionally, a sterilization apparatus has been proposed that electrolyzes tap water or the like to generate electrolyzed water containing active oxygen species, and uses this electrolyzed water to remove viruses floating in the air (for example, Patent Document 1). The sterilization apparatus is produced by a water storage tank that stores circulating water, an electrolysis apparatus that electrolyzes the circulating water stored in the water storage tank to generate electrolyzed water containing active oxygen species, and the electrolysis apparatus. Gas-liquid contact comprising a gas-liquid contact member to which electrolyzed water is supplied, a blower fan for sending air to the gas-liquid contact member, and an electrolyzed water recovery device for recovering electrolyzed water of the gas-liquid contact member to the water storage tank The member attempts to disinfect the air by contacting the electrolyzed water containing active oxygen species with air and inactivating viruses and the like.

特開2009−106706号公報JP 2009-106706 A

上述した空気除菌装置では水道水等を循環水として貯水槽に貯留し、貯水槽に貯留された循環水を電気分解して次亜塩素酸等の活性酸素種を含む電解水を生成し、この電解水を不織布等からなる気液接触部材に供給して電解水と空気を接触させるとともに、気液接触部材の電解水を前記貯水槽に回収するものであるから、除菌運転を継続することによって気液接触部材から水分が蒸発して貯水槽の循環水が少なくなる。このため、貯水槽に自動的に循環水を補給する給水タンクを設け、貯水槽の水位をほぼ一定に保つようにしている。また、貯水槽の循環水を定期的に排水タンクに排出させることにより、給水タンクから新たな水道水等を貯水槽に供給し、循環水の濃縮が進みすぎないようにしていた。   In the air sterilizer described above, tap water or the like is stored in the water tank as circulating water, electrolyzed the circulating water stored in the water tank to generate electrolyzed water containing active oxygen species such as hypochlorous acid, The electrolyzed water is supplied to a gas-liquid contact member made of nonwoven fabric or the like to bring the electrolyzed water into contact with air, and the electrolyzed water of the gas-liquid contact member is recovered in the water storage tank, so the sterilization operation is continued. As a result, water is evaporated from the gas-liquid contact member, and the circulating water in the water storage tank is reduced. For this reason, a water supply tank for automatically supplying circulating water to the water tank is provided to keep the water level of the water tank substantially constant. Further, by periodically discharging the circulating water in the water tank to the drain tank, new tap water or the like is supplied from the water supply tank to the water tank so that the circulating water does not concentrate too much.

しかしながら、給水タンクが空になると除菌運転が継続できなくなるため、使用者が給水タンクに頻繁に水を補給する必要があり、給水タンクへの頻繁な給水や排水タンクに溜まった循環水の排水が使用者にとって大変面倒な作業になっていた。勿論、水道管に直結した自動給水機能や排水管に連結した自動排水機能を付加することも可能であるが、その場合には装置がコスト高になるばかりでなく、給水・排水工事費用が嵩み、特に既設の建物に設置することが困難となる問題があった。また、水を頻繁に補給することによって水道水等に含まれる不純物が装置内にスケールとなって付着・蓄積され、気液接触部材の交換時期が早まるとともに、装置のメンテナンスが大掛かりになる欠点もあった。   However, since the sterilization operation cannot be continued when the water supply tank becomes empty, it is necessary for the user to replenish water to the water supply tank frequently. However, it was very troublesome for users. Of course, it is possible to add an automatic water supply function directly connected to the water pipe or an automatic water discharge function connected to the drain pipe, but in this case, not only the cost increases, but also the water supply / drainage construction cost increases. In particular, there was a problem that it was difficult to install in an existing building. In addition, due to frequent replenishment of water, impurities contained in tap water, etc. are deposited and accumulated as scales in the device, and the replacement timing of the gas-liquid contact member is advanced, and the maintenance of the device becomes significant. there were.

そこで本発明は、使用者による給水の手間を省き、使い勝手を向上できるようにし、更にはスケールの付着を少なくし、気液接触部材を長期にわたって使用できるようにするとともに、装置のメンテナンスを容易にすることを目的とする。   Therefore, the present invention eliminates the trouble of water supply by the user, improves usability, further reduces the adhesion of the scale, allows the gas-liquid contact member to be used over a long period of time, and facilitates maintenance of the apparatus. The purpose is to do.

第1の発明は、循環水を貯留する貯水槽と、この貯水槽に貯留された循環水を電気分解して活性酸素種を含む電解水を生成する電解装置と、この電解装置によって生成された電解水が供給される気液接触部材と、この気液接触部材に空気を送る送風機と、前記気液接触部材の電解水を前記貯水槽に回収する電解水回収装置とを備え、前記気液接触部材にて活性酸素種を含む電解水と空気を接触させ当該空気を除菌するようにした空気除菌装置において、前記貯水槽に貯留する循環水には液体吸湿剤を含ませてあることを特徴とする。   1st invention was produced | generated by the water storage tank which stores circulating water, the electrolyzer which electrolyzes the circulating water stored in this water tank, and produces | generates the electrolyzed water containing an active oxygen species, and this electrolyzer A gas-liquid contact member to which electrolyzed water is supplied; a blower for sending air to the gas-liquid contact member; and an electrolyzed water recovery device for recovering electrolyzed water of the gas-liquid contact member to the water storage tank. In the air sterilization apparatus in which electrolyzed water containing active oxygen species is brought into contact with air and sterilized by the contact member, the circulating water stored in the water storage tank contains a liquid hygroscopic agent. It is characterized by.

第2の発明は、第1の発明において、前記液体吸湿剤が無機物の液体吸湿剤であることを特徴とする。   A second invention is characterized in that, in the first invention, the liquid hygroscopic agent is an inorganic liquid hygroscopic agent.

第3の発明は、第1の発明において、前記液体吸湿剤が中性の液体吸湿剤であることを特徴とする。   According to a third invention, in the first invention, the liquid hygroscopic agent is a neutral liquid hygroscopic agent.

第4の発明は、第1の発明において、前記液体吸湿剤が塩化リチウムであることを特徴とする。   According to a fourth invention, in the first invention, the liquid moisture absorbent is lithium chloride.

また第5の発明は、液体吸湿剤を含ませた循環水を貯留する貯水槽と、この貯水槽に貯留された循環水を電気分解して活性酸素種を含む電解水を生成する電解装置と、この電解装置によって生成された電解水が供給される気液接触部材と、この気液接触部材に空気を送る送風機と、前記気液接触部材の電解水を前記貯水槽に回収する電解水回収装置と、前記液体吸湿剤が吸収した水分により前記貯水槽の水位が所定以上に上昇したときに前記貯水槽の循環水の水位を調整する水位調整手段とを備えたことを特徴とする。   According to a fifth aspect of the present invention, there is provided a water storage tank for storing circulating water containing a liquid hygroscopic agent, and an electrolysis apparatus for generating electrolyzed water containing active oxygen species by electrolyzing the circulating water stored in the water storage tank. A gas-liquid contact member to which electrolyzed water generated by the electrolyzer is supplied; a blower for sending air to the gas-liquid contact member; and electrolyzed water recovery for recovering electrolyzed water of the gas-liquid contact member to the water storage tank And a water level adjusting means for adjusting the level of circulating water in the water storage tank when the water level of the water storage tank rises to a predetermined level or more due to moisture absorbed by the liquid moisture absorbent.

第6の発明は、第5の発明において、前記水位調整手段は、前記貯水槽の水位を検出する水位センサと、リザーバータンクと、前記水位センサの検出出力に応じて前記貯水槽の循環水を前記リザーバータンクに移送する循環水移送手段とからなることを特徴とする。   According to a sixth aspect of the present invention based on the fifth aspect, the water level adjusting means is configured to provide a water level sensor that detects a water level of the water tank, a reservoir tank, and circulating water in the water tank according to a detection output of the water level sensor. It comprises circulating water transfer means for transferring to the reservoir tank.

第7の発明は、第6の発明において、前記循環水移送手段は、前記貯水槽と前記リザーバータンクとの連絡通路に設けられたポンプ及び弁と、これらポンプ及び弁を制御する制御手段とからなることを特徴とする。   In a seventh aspect based on the sixth aspect, the circulating water transfer means includes a pump and a valve provided in a communication passage between the water storage tank and the reservoir tank, and a control means for controlling the pump and the valve. It is characterized by becoming.

第8の発明は、第6の発明において、前記循環水移送手段は、前記リザーバータンクに設けられ該リザーバータンク内部の空気を排出するエアポンプと、このエアポンプを制御する制御手段とからなることを特徴とする。   In an eighth aspect based on the sixth aspect, the circulating water transfer means comprises an air pump provided in the reservoir tank for discharging the air inside the reservoir tank, and a control means for controlling the air pump. And

第9の発明は、第5の発明において、前記水位調整手段は、前記貯水槽を深絞りとすることにより該貯水槽と一体に設けられた水位調整用の貯水部であることを特徴とする。   A ninth invention is characterized in that, in the fifth invention, the water level adjusting means is a water level adjusting water storage section provided integrally with the water storage tank by deep drawing the water storage tank. .

本発明によれば、液体吸湿剤の溶液が電解水とともに気液接触部材に供給され、気液接触部材では空気との接触による水分の蒸発と液体吸湿剤による水分の吸収とが行われるため、貯水槽に貯留される循環水が減少しないようにできる。このため、使用者が給水を頻繁に行う必要がなく、使い勝手を向上できる。また、循環水が濃縮しすぎないようにできると共に水道水等を頻繁に補給しなくて良いので、気液接触部材や貯水槽等にスケールが付着しにくくなり、気液接触部材を長期にわたって使用できるとともに、装置のメンテナンスも容易になる。   According to the present invention, the liquid hygroscopic agent solution is supplied to the gas-liquid contact member together with the electrolyzed water, and in the gas-liquid contact member, moisture is evaporated by contact with air and moisture is absorbed by the liquid hygroscopic agent. Circulating water stored in the water storage tank can be prevented from decreasing. For this reason, it is not necessary for the user to supply water frequently, and usability can be improved. In addition, it is possible to prevent the circulating water from concentrating too much, and it is not necessary to replenish tap water etc. frequently, so it becomes difficult for the scale to adhere to the gas-liquid contact member and water storage tank, and the gas-liquid contact member can be used for a long time. In addition, the maintenance of the apparatus becomes easy.

また、液体吸湿剤としては種々利用できるが、第2の発明のように、液体吸湿剤が無機物の液体吸湿剤の水溶液であるものでは、室内の湿度変化に対して優れた水分吸収特性があるため、気液接触部材での空気との接触による水分の蒸発と液体吸湿剤による水分の吸収とが室内湿度に応じた平衡状態となり、空気除菌装置に特別な装置を付加することなく湿度調整機能を高めることができる。また第3の発明のような前記液体吸湿剤が中性の液体吸湿剤であれば、アルカリ性のように次亜塩素酸の効果が低いものではなく、酸性のような塩素ガスが発生するものではないので、次亜塩素酸の効果が高く、安心して使用できる。   In addition, the liquid hygroscopic agent can be used in various ways. However, as in the second invention, when the liquid hygroscopic agent is an aqueous solution of an inorganic liquid hygroscopic agent, it has excellent moisture absorption characteristics with respect to indoor humidity changes. Therefore, the evaporation of moisture due to contact with air at the gas-liquid contact member and the absorption of moisture by the liquid hygroscopic agent are in an equilibrium state according to room humidity, and humidity adjustment is performed without adding a special device to the air sterilization device. Function can be enhanced. If the liquid hygroscopic agent as in the third invention is a neutral liquid hygroscopic agent, the effect of hypochlorous acid is not low as in the case of alkaline, and acidic chlorine gas is generated. Since there is no hypochlorous acid, it can be used safely.

特に、第4の発明のような塩化リチウムの水溶液では塩化物イオンを含むため、水道水を使用しなくても次亜塩素酸等の活性酸素種を生成して、除菌効果を十分に発揮させることができるとともに、水道水に含まれる成分によりスケールが蓄積されるのを防止できる。   In particular, since the aqueous solution of lithium chloride as in the fourth invention contains chloride ions, active oxygen species such as hypochlorous acid are generated without using tap water, and the sterilizing effect is sufficiently exerted. In addition, the scale can be prevented from accumulating due to the components contained in the tap water.

また、第5の発明では、液体吸湿剤が吸収した水分により前記貯水槽の水位が上昇したときに貯水槽の循環水を保管する水位調整手段を備えているので、液体吸湿剤の吸水により貯水槽の水位が上昇したときに余剰の循環水を保管し、これを不足するときに活用して給水の頻度をさらに減らすことができる。   In the fifth aspect of the invention, since the water level adjusting means for storing the circulating water in the water storage tank is provided when the water level of the water storage tank rises due to the water absorbed by the liquid hygroscopic agent, When the water level of the tank rises, surplus circulating water can be stored and used when it becomes insufficient, so that the frequency of water supply can be further reduced.

また、第6の発明では、水位調整手段を貯水槽の水位を検出する水位センサと、リザーバータンクと、水位センサの検出出力に応じて貯水槽の循環水をリザーバータンクに移送する循環水移送手段とで構成しているので、第7又は第8の発明のように、例えば循環水移送手段をポンプ及び弁とそれらの制御手段や、エアポンプとそれらの制御手段で構成し、貯水槽の水位に応じてポンプ及び弁や、エアポンプを作動させて、貯水槽の循環水をリザーバータンクに移送することにより貯水槽の水位を簡単、かつ確実に調整できる。   In the sixth aspect of the invention, the water level adjusting means detects the water level of the water tank, the reservoir tank, and the circulating water transfer means for transferring the circulating water of the water tank to the reservoir tank according to the detection output of the water level sensor. As in the seventh or eighth invention, for example, the circulating water transfer means is composed of a pump and a valve and their control means, an air pump and their control means, and the water level of the water storage tank is set. Accordingly, the water level of the water storage tank can be adjusted easily and reliably by operating the pump and valve or the air pump to transfer the circulating water of the water storage tank to the reservoir tank.

更にまた、第9の発明では、水位調整手段を貯水槽を深絞りとすることにより貯水槽と一体に設けられた水位調整用の貯水部としているので、構造を複雑にすることなく貯水槽の余剰の循環水の保管が可能であり、安価に構成できる。   Furthermore, in the ninth invention, the water level adjusting means is a water storage portion for adjusting the water level provided integrally with the water storage tank by making the water storage tank deeply drawn, so that the structure of the water tank can be reduced without complicating the structure. Excess circulating water can be stored and can be configured at low cost.

本発明の実施の形態に係る空気除菌装置の外観斜視図である。1 is an external perspective view of an air sterilization apparatus according to an embodiment of the present invention. 同じく空気除菌装置の内部構成を示す斜視図である。It is a perspective view which similarly shows the internal structure of an air sterilizer. 同じく空気除菌装置の内部構成を示す右側断面視図である。It is a right side section view similarly showing an internal configuration of an air sterilizer. 同じく空気除菌装置の電解水を生成し循環させる要部の構成を示す斜視図である。It is a perspective view which similarly shows the structure of the principal part which produces | generates and circulates the electrolyzed water of an air sterilizer. 各種吸収剤の相対湿度と水分吸収量との関係図である。It is a related figure of relative humidity and moisture absorption of various absorbents. 同じく空気除菌装置の電解水の循環経路を示す概略図である。It is the schematic which similarly shows the circulation path of the electrolyzed water of an air sanitizer. 同じく空気除菌装置の制御例を示すフローチャートである。It is a flowchart which similarly shows the control example of an air sanitizer. 空気除菌装置の電解水の循環経路の他の実施形態を示す概略図である。It is the schematic which shows other embodiment of the circulation path of the electrolyzed water of an air sanitizer. 空気除菌装置の電解水の循環経路の他の実施形態に係る制御例を示すフローチャートである。It is a flowchart which shows the example of control which concerns on other embodiment of the circulation path of the electrolyzed water of an air sanitizer. 空気除菌装置の電解水の循環経路のその他の実施形態を示す概略図である。It is the schematic which shows other embodiment of the circulation path of the electrolyzed water of an air sanitizer.

以下、図面を参照して本発明の実施の形態について説明する。図1は本発明の実施の形態に係る空気除菌装置1の外観斜視図であり、図1に示すように、空気除菌装置1は縦長に形成された箱形の筐体11を有し、例えば床置状態で設置される。前記筐体11の両側面の下部には吸込グリル12が形成されると共に、筐体11の前面の下端部には吸込口15が形成されている。   Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an external perspective view of an air sterilization apparatus 1 according to an embodiment of the present invention. As shown in FIG. 1, the air sterilization apparatus 1 has a box-shaped casing 11 formed in a vertically long shape. For example, it is installed on the floor. A suction grill 12 is formed at the lower part of both side surfaces of the housing 11, and a suction port 15 is formed at the lower end of the front surface of the housing 11.

また、筐体11の上面には吹出口13が形成され、吹出口13には空気を吹き出す方向を変化させるためのルーバー20が設けられている。このルーバー20は、運転停止時には上記吹出口13を閉塞するように構成されている。   Moreover, the blower outlet 13 is formed in the upper surface of the housing | casing 11, and the louver 20 for changing the direction which blows off air is provided in the blower outlet 13. FIG. The louver 20 is configured to close the outlet 13 when operation is stopped.

即ち、空気除菌装置1は吸込グリル12及び吸込口15を介して設置室内の空気を吸い込んで除菌し、この除菌された空気を吹出口13から排出することで、室内空気を清浄化させる装置である。   That is, the air sterilizer 1 cleans the room air by sucking and sterilizing the air in the installation room through the suction grill 12 and the suction port 15 and discharging the sterilized air from the outlet 13. It is a device to let you.

そして、筐体11の上面には、吹出口13の前面側に配置された操作蓋16Aと、この操作蓋16Aに横並びに配置されたタンク用開閉蓋14Aとが形成されている。空気除菌装置1の内部構成を示す斜視図である図2に示すように、操作蓋16Aを開くと空気除菌装置1の各種操作を行う操作パネル16が露出し、タンク用開閉蓋14Aを開くとタンク取出口14を介して後述するリザーバータンクを兼ねる給水タンク41を出し入れ可能となっている。   An operation lid 16A disposed on the front surface side of the air outlet 13 and a tank opening / closing lid 14A disposed side by side on the operation lid 16A are formed on the upper surface of the housing 11. As shown in FIG. 2, which is a perspective view showing the internal configuration of the air sterilization apparatus 1, when the operation lid 16A is opened, the operation panel 16 for performing various operations of the air sterilization apparatus 1 is exposed, and the tank opening / closing lid 14A is opened. When opened, a water supply tank 41 that also serves as a reservoir tank, which will be described later, can be taken in and out through the tank outlet 14.

また、筐体11の両側面の上部にはそれぞれ把持部17が形成されている。これら把持部17は筐体11を手持ちする際に、手を掛けるための凹部であり、運搬時に空気除菌装置1を一人で持ち上げて移動できるようになっている。   In addition, gripping portions 17 are formed on the upper portions of both side surfaces of the housing 11. These gripping portions 17 are concave portions for holding the case 11 by hand, and the air sterilizer 1 can be lifted and moved by one person during transportation.

また、筐体11の前面(一側面)には、上下方向に並べられた上側カバー部材18及び下側カバー部材19がそれぞれ着脱自在に配置されており、これら上側カバー部材18及び下側カバー部材19を取り外すと筐体11の内部構成が露出するようになっている。また、下側カバー部材19の下端部には、筐体11の背面側に向けて湾曲した円弧部19Aを備え、この円弧部19Aに上記吸込口15が形成されている。   Further, an upper cover member 18 and a lower cover member 19 arranged in the vertical direction are detachably arranged on the front surface (one side surface) of the housing 11, respectively. The upper cover member 18 and the lower cover member When 19 is removed, the internal structure of the housing 11 is exposed. The lower cover member 19 has an arc portion 19A that is curved toward the back side of the housing 11 at the lower end portion, and the suction port 15 is formed in the arc portion 19A.

図2に示すように、筐体11にはこの筐体11の内部を上下に仕切る支持板21が設けられ、上側の室22と下側の室23とに区分けされている。この下側の室23には送風機を構成する送風ファン31及びファンモータ32が配置されると共に、仕切板24を介して把手部57Aを有する排水タンク57が筐体11の前面側に引き出し可能に収容されている。これら送風ファン31及びファンモータ32と排水タンク57とは横並びに配置されている。   As shown in FIG. 2, the housing 11 is provided with a support plate 21 that divides the interior of the housing 11 in the vertical direction, and is divided into an upper chamber 22 and a lower chamber 23. The lower chamber 23 is provided with a blower fan 31 and a fan motor 32 constituting a blower, and a drain tank 57 having a handle portion 57A can be pulled out to the front side of the housing 11 via a partition plate 24. Contained. The blower fan 31, the fan motor 32, and the drainage tank 57 are arranged side by side.

また、送風ファン31と吸込口15との間、即ち下側の室23における下側カバー部材19(図1)と対向する位置にプレフィルタ34が着脱自在に配置されている。このプレフィルタ34は、吸込グリル12及び吸込口15を通じて吸い込まれた空気中の塵埃など粒径の大きなものを捕集する第1フィルタ25と、この第1フィルタ25を通過する、例えば粒径10(μm)以上の物を捕集する第2フィルタ26とを備えて構成される。このプレフィルタ34によって空気中に浮遊する花粉や塵埃等が除去され、この除去された空気が送風ファン31を介して上側の室22に供給される。   A prefilter 34 is detachably disposed between the blower fan 31 and the suction port 15, that is, at a position facing the lower cover member 19 (FIG. 1) in the lower chamber 23. The pre-filter 34 collects a large particle size such as dust in the air sucked through the suction grill 12 and the suction port 15, and passes through the first filter 25, for example, a particle size of 10 (Μm) and a second filter 26 that collects the above objects. Pollen and dust floating in the air are removed by the prefilter 34, and the removed air is supplied to the upper chamber 22 via the blower fan 31.

一方、上側の室22には、送風ファン31及びファンモータ32の上方に電装ボックス39が配置され、この電装ボックス39内には空気除菌装置1を制御するマイクロコンピュータ等から構成される制御部60(図6)を構成する各種デバイスが実装された制御基板や、ファンモータ32に電源電圧を供給する電源回路等の各種電装部品が収容されている。   On the other hand, in the upper chamber 22, an electrical box 39 is disposed above the blower fan 31 and the fan motor 32, and a control unit configured by a microcomputer or the like that controls the air sterilizer 1 is provided in the electrical box 39. Various electrical components such as a control board on which various devices constituting the device 60 (FIG. 6) are mounted and a power supply circuit for supplying a power supply voltage to the fan motor 32 are accommodated.

そして、電装ボックス39の上方には、通過する空気を電解水に接触させて空気を除菌する気液接触部材53が配置されている。この気液接触部材53の下方には、気液接触部材53から滴下した電解水を受ける水受け部(電解水回収装置)42Aを備えた循環水貯留用の貯水槽42が配置されている。この貯水槽42は、深底に形成された貯留部42Bを備えており、この貯留部42Bは循環水を貯留できる。この貯留部42Bは水受け部42Aに滴下した電解水が流入するように構成され、電解水が貯留部42Bに貯留される。また、貯留部42Bは上記排水タンク57の上方に延在している。更に、貯留部42Bの上には給水タンク41が配設され、給水タンク41から貯留部42Bに循環水を供給可能な構成となっている。   A gas-liquid contact member 53 that disinfects the air by bringing the passing air into contact with the electrolyzed water is disposed above the electrical box 39. Below the gas-liquid contact member 53, a water storage tank 42 for circulating water storage provided with a water receiving part (electrolyzed water recovery device) 42A for receiving the electrolyzed water dropped from the gas-liquid contact member 53 is disposed. The water storage tank 42 includes a storage part 42B formed at a deep bottom, and the storage part 42B can store circulating water. The storage part 42B is configured such that the electrolyzed water dropped into the water receiving part 42A flows in, and the electrolyzed water is stored in the storage part 42B. Further, the reservoir 42B extends above the drain tank 57. Furthermore, a water supply tank 41 is disposed on the storage part 42B, and the circulating water can be supplied from the water supply tank 41 to the storage part 42B.

次に、空気除菌装置1における空気の流れを説明する。図3は空気除菌装置1の内部構成を示す右側断面視図であり、上述のように、筐体11の下側の室23には送風ファン31が設けられている。送風ファン31の送風口31Aは、図3に示すように、筐体11の背面側部分において上向きに設けられ、上側の室22の背面側において上下に延びる風路としての空間1Aに連通する。この空間1Aは、筐体11の背面側に配置される第1導風部材81と、この第1導風部材81に対向配置され、支持板21から貯水槽42まで延在する導風板84とにより形成されている。送風ファン31の送風口31Aから吹き出された空気は、上昇して、図3において矢印で示すように空間1Aを通り、前方へ向けられ気液接触部材53の背面に吹き付けられる。   Next, the flow of air in the air sterilizer 1 will be described. FIG. 3 is a right side cross-sectional view showing the internal configuration of the air sterilization apparatus 1. As described above, the blower fan 31 is provided in the lower chamber 23 of the housing 11. As shown in FIG. 3, the blower port 31 </ b> A of the blower fan 31 is provided upward in the rear side portion of the housing 11, and communicates with a space 1 </ b> A as an air path extending vertically on the back side of the upper chamber 22. The space 1 </ b> A includes a first air guide member 81 disposed on the back side of the housing 11, and an air guide plate 84 that is disposed to face the first air guide member 81 and extends from the support plate 21 to the water storage tank 42. And is formed by. The air blown from the blower opening 31A of the blower fan 31 rises, passes through the space 1A as shown by an arrow in FIG. 3, is directed forward, and is blown to the back surface of the gas-liquid contact member 53.

一方、気液接触部材53を介する上記空間1Aと反対側(本実施形態では筐体11の前面側)の空間1Bには、図3に示すように、気液接触部材53を通過した空気を吹出口13に導く第2導風部材83が配置されている。この第2導風部材83は、上面部と背面部とを開口された略箱状に形成されている。   On the other hand, in the space 1B opposite to the space 1A via the gas-liquid contact member 53 (in this embodiment, the front side of the housing 11), as shown in FIG. A second air guide member 83 that leads to the air outlet 13 is disposed. The second air guide member 83 is formed in a substantially box shape with an upper surface portion and a back surface portion opened.

この第2導風部材83は、空間1B内の空気を吹出口13に導く機能に加えて、気液接触部材53から空気とともにこの空間1Bに吹き出された水(いわゆる飛び水)を受ける機能を有する。具体的には、第2導風部材83の内側の底面83Aは、気液接触部材53に向けて低く傾斜しており、第2導風部材83に飛び出した水を貯水槽42に導くように形成されている。そして、気液接触部材53を通過した空気は、第2導風部材83の内側の面83Bに導かれて吹出口13の下方に配設された吹出口フィルタ36を通って排気される。   In addition to the function of guiding the air in the space 1B to the air outlet 13, the second air guide member 83 has a function of receiving water (so-called flying water) blown into the space 1B together with the air from the gas-liquid contact member 53. Have. Specifically, the inner bottom surface 83 </ b> A of the second air guide member 83 is inclined low toward the gas-liquid contact member 53 so that the water that has jumped out of the second air guide member 83 is guided to the water storage tank 42. Is formed. The air that has passed through the gas-liquid contact member 53 is exhausted through the air outlet filter 36 that is guided to the inner surface 83B of the second air guide member 83 and disposed below the air outlet 13.

図4は電解水を生成し循環させる要部の構成を示す斜視図であり、本実施の形態では、空気を除菌する電解水は、循環されて繰り返し使用される。   FIG. 4 is a perspective view showing a configuration of a main part that generates and circulates electrolyzed water. In this embodiment, electrolyzed water for sterilizing air is circulated and repeatedly used.

循環の概略を説明すると、電解水の原料として貯留部42Bに供給された循環水は、電解水を循環させるための循環ポンプ44により電解槽(電解装置)46に供給され、電解槽46により循環水が電解されて生成された電解水は、貯留部42Bに再び戻り貯留され、その後、循環ポンプ44により気液接触部材53に供給され、次いで、除菌に使用された電解水が水受け部42Aに流下し、水受け部42Aから貯留部42Bに流れた電解水が再び循環ポンプ44により電解槽46に供給されて電解水の循環が繰り返されるというものである。このように、本実施形態における構成では電解水が循環式となっており、少量の水を有効に利用することで、長時間にわたって効率良く空気の除菌ができる。   The outline of the circulation will be described. The circulating water supplied to the storage unit 42B as a raw material for the electrolyzed water is supplied to the electrolyzer (electrolyzer) 46 by the circulation pump 44 for circulating the electrolyzed water, and circulated by the electrolyzer 46. The electrolyzed water generated by electrolyzing water is returned and stored again in the storage unit 42B, and then supplied to the gas-liquid contact member 53 by the circulation pump 44, and then the electrolyzed water used for sterilization is the water receiving unit. The electrolytic water flowing down to 42A and flowing from the water receiving portion 42A to the storage portion 42B is supplied again to the electrolytic bath 46 by the circulation pump 44, and the circulation of the electrolytic water is repeated. Thus, in the configuration of the present embodiment, the electrolyzed water is a circulation type, and by effectively using a small amount of water, it is possible to efficiently sterilize air over a long period of time.

貯水槽42は、その水受け部42Aと貯留部42Bとが一体に成形されて構成される。水受け部42Aは貯留部42Bより一段高く形成されており、気液接触部材53から水受け部42Aに流下した電解水は、貯留部42Bに流れるようになっている。また、水受け部42Aから貯留部42Bに至る電解水の流路には、気液接触部材53から流れ落ちた水に含まれる固形物(スケール)を捕集するフィルタ76が配設されている。   The water storage tank 42 is configured by integrally forming a water receiving portion 42A and a storage portion 42B. The water receiving part 42A is formed one step higher than the storage part 42B, and the electrolyzed water that has flowed from the gas-liquid contact member 53 to the water receiving part 42A flows into the storage part 42B. Further, a filter 76 that collects solid matter (scale) contained in the water that has flowed down from the gas-liquid contact member 53 is disposed in the flow path of the electrolyzed water from the water receiving portion 42A to the storage portion 42B.

循環ポンプ44は、その吸入口が貯留部42Bの水面より下になるように配設され、循環ポンプ44の吐出口に接続された配水管71を通じて循環水を吐出する。この配水管71は3つの経路に分岐し、一方の経路では、循環ポンプ44が配水管71と分岐して接続される分岐管72を介して電解槽46に接続され、もう一方の経路では、配水管71が気液接触部材53の上に設置された散水ボックス51に接続され、更にもう一方の経路では、循環ポンプ44が配水管71と分岐して接続され、且つ、後述するように電磁弁73が挿入された分岐管74を介して給水タンク41に接続されるようにしてある。   Circulation pump 44 is disposed such that its suction port is below the water surface of reservoir 42 </ b> B, and discharges circulating water through water distribution pipe 71 connected to the discharge port of circulation pump 44. The water distribution pipe 71 branches into three paths, and in one path, the circulation pump 44 is connected to the electrolytic cell 46 via a branch pipe 72 branched and connected to the water distribution pipe 71, and in the other path, The water distribution pipe 71 is connected to the water spray box 51 installed on the gas-liquid contact member 53, and in the other path, the circulation pump 44 is branched from the water distribution pipe 71 and connected to the electromagnetic pump as will be described later. The valve 73 is connected to the water supply tank 41 through a branch pipe 74 into which the valve 73 is inserted.

一方の経路において、分岐管72を通って電解槽46に供給された循環水は、電解槽46により電解される。この電解槽46は、後述するように複数の電極を内蔵し、これら電極間に、制御部60から供給される電圧を印加することにより、水を電解して次亜塩素酸などを含む電解水を生成する。   In one path, the circulating water supplied to the electrolytic cell 46 through the branch pipe 72 is electrolyzed by the electrolytic cell 46. As will be described later, the electrolytic bath 46 includes a plurality of electrodes, and by applying a voltage supplied from the control unit 60 between the electrodes, the electrolytic water contains electrolyzed water and contains hypochlorous acid and the like. Is generated.

電解槽46の上面にはこの電解槽46で生成した電解水を排出する排出口46Aが形成され、この排出口46Aには電解水を貯留部42Bに送出する返送管75が接続されている。この返送管75は、排出口46Aから横方向に延びた後、下方向に向きを変え、返送管75の下端は、フィルタ76の上方に位置している。   A discharge port 46A for discharging the electrolytic water generated in the electrolytic cell 46 is formed on the upper surface of the electrolytic cell 46, and a return pipe 75 for sending the electrolytic water to the storage part 42B is connected to the discharge port 46A. The return pipe 75 extends in the lateral direction from the discharge port 46 </ b> A and then turns downward. The lower end of the return pipe 75 is located above the filter 76.

そして、電解水は、返送管75の下端から直接、フィルタ76に注がれるようにして還流され、フィルタ76を通過する際にスケール等は取り除かれて、貯留部42Bに貯留される。なお、返送管75から流れ出る電解水が、フィルタ76の上流である水受け部42Aに還流される構成としても良い。この場合、返送管75から水受け部42Aに注がれた電解水は、上述の場合と同様に、フィルタ76を介して貯留部42Bに流れるため、スケールを取り除くことができる。   Then, the electrolyzed water is refluxed so as to be poured directly into the filter 76 from the lower end of the return pipe 75, and when passing through the filter 76, the scale and the like are removed and stored in the storage unit 42B. In addition, it is good also as a structure by which the electrolyzed water which flows out from the return pipe 75 is recirculated to the water receiving part 42A upstream of the filter 76. In this case, since the electrolyzed water poured from the return pipe 75 to the water receiving portion 42A flows to the storage portion 42B through the filter 76 in the same manner as described above, the scale can be removed.

そして、次亜塩素酸などを含んだ電解水が供給された気液接触部材53が送風ファン31により空気を送られると、空気が気液接触部材53を通過する際に、空気中に浮遊するウィルス等と電解水とが接触してウィルス等が不活化されるため、空気を除菌することができ、さらに気液接触部材53自体における雑菌の繁殖を防止できる。また、臭気が気液接触部材53を通過する際に、電解水中の次亜塩素酸などと反応し、イオン化して電解水に溶解することにより、空気中から除去されるため、脱臭をすることもできる。   When the gas-liquid contact member 53 supplied with electrolyzed water containing hypochlorous acid or the like is sent air by the blower fan 31, the air floats in the air when passing through the gas-liquid contact member 53. Since the virus and the like are brought into contact with the electrolyzed water to inactivate the virus and the like, the air can be sterilized, and the propagation of germs in the gas-liquid contact member 53 itself can be prevented. Further, when the odor passes through the gas-liquid contact member 53, it reacts with hypochlorous acid or the like in the electrolyzed water, and is ionized and dissolved in the electrolyzed water. You can also.

気液接触部材53は、水受け部42Aの上方に配設され、除菌に使用されて気液接触部材53から流下する電解水は、水受け部42Aにより受けられて、その後、貯留部42Bに還流される。   The gas-liquid contact member 53 is disposed above the water receiving portion 42A, and the electrolyzed water that is used for sterilization and flows down from the gas-liquid contact member 53 is received by the water receiving portion 42A, and thereafter the storage portion 42B. To reflux.

ここで、気液接触部材53の各部(フレーム、エレメント部、及び分流シートを含む)には、電解水による劣化が少ない素材、例えば、ポリオレフィン系樹脂(ポリエチレン樹脂、ポリプロピレン樹脂等)、PET(ポリエチレン・テレフタレート)樹脂、塩化ビニル樹脂、フッ素系樹脂(PTFE、PFA、ETFE等)又はセラミックス系材料等の素材が使用され、本構成では、PET樹脂を用いるものとする。   Here, each part (including the frame, the element part, and the flow dividing sheet) of the gas-liquid contact member 53 is made of a material that is hardly deteriorated by electrolyzed water, such as polyolefin resin (polyethylene resin, polypropylene resin, etc.), PET (polyethylene). -Materials such as terephthalate) resin, vinyl chloride resin, fluorine resin (PTFE, PFA, ETFE, etc.) or ceramic material are used. In this configuration, PET resin is used.

また、気液接触部材53の各部には親水性処理が施され、電解水に対する親和性が高められており、これによって、気液接触部材53の電解水の保水性(湿潤性)が保たれ、後述する活性酸素種(活性酸素物質)と室内空気との接触が長時間持続される。   Further, each part of the gas-liquid contact member 53 is subjected to a hydrophilic treatment to enhance the affinity for the electrolyzed water, whereby the water retention (wetability) of the electrolyzed water of the gas-liquid contact member 53 is maintained. The contact between the active oxygen species (active oxygen substance) described later and the room air is maintained for a long time.

本実施の形態では、液体吸湿剤として塩化リチウムを含む水溶液を循環水として貯水槽42に貯留させており、この循環水が電解層46で電解されることで、除菌成分としての次亜塩素酸を含む電解水が生成され、電解水は上述したように気液接触部材53での空気との接触により空気との除菌に使用されるとともに、液体吸湿剤としての塩化リチウムは気液接触部材53での空気との接触により空気中に含まれる水分を吸収し、吸収された水分は電解水回収装置としての水受け部42Aを経て貯水槽42の貯留部42Bに電解水と一緒に回収され、循環水として貯留される。   In the present embodiment, an aqueous solution containing lithium chloride as a liquid hygroscopic agent is stored as circulating water in the water storage tank 42, and this circulating water is electrolyzed in the electrolytic layer 46, thereby hypochlorous acid as a sterilizing component. Electrolyzed water containing acid is generated, and the electrolyzed water is used for sterilization with air by contact with air at the gas-liquid contact member 53 as described above, and lithium chloride as a liquid moisture absorbent is gas-liquid contacted. Moisture contained in the air is absorbed by contact with the air at the member 53, and the absorbed water is collected together with the electrolyzed water in the storage portion 42B of the water storage tank 42 through the water receiving portion 42A as an electrolyzed water recovery device. And stored as circulating water.

液体吸湿剤としては種々のものがあり、例えば各種吸収剤の相対湿度と水分吸収量との関係図である図5(参照文献:空気調和・衛生工学 2002年10月号 pp. 987 加湿と除湿(5) 榊 武文)に示すように、塩化リチウムの他には塩化カルシウム、硫酸、グリセリン、トリエチレングリコールが広範囲の空気中の湿度変化に対して良好な水分吸収特性を有している。このうち、塩化リチウムは室内の湿度変化に対して最も優れた水分吸収特性を有しているため、気液接触部材53での空気との接触による水分の蒸発と液体吸湿剤による水分の吸収とが室内湿度に応じた平衡状態となり、空気除菌装置1に特別な装置を付加することなく湿度調整機能を高めることができる。特に、塩化リチウムの水溶液では塩化物イオンを含むため、水道水を使用しなくても次亜塩素酸を生成して、除菌効果を十分に発揮させることができるとともに、水道水に含まれる成分によりスケールが蓄積されるのを防止できる。   There are various types of liquid hygroscopic agents, for example, FIG. 5 (relative reference: air conditioning and sanitary engineering, October 2002 issue, pp. 987) As shown in (5) Takefumi Tsuji), in addition to lithium chloride, calcium chloride, sulfuric acid, glycerin, and triethylene glycol have good moisture absorption characteristics over a wide range of humidity changes in the air. Among these, since lithium chloride has the most excellent moisture absorption characteristics with respect to indoor humidity changes, the evaporation of moisture due to contact with air at the gas-liquid contact member 53 and the absorption of moisture by the liquid moisture absorbent. Becomes an equilibrium state according to the room humidity, and the humidity adjustment function can be enhanced without adding a special device to the air sterilization apparatus 1. In particular, an aqueous solution of lithium chloride contains chloride ions, so that hypochlorous acid can be generated without using tap water, and the sterilizing effect can be sufficiently exerted, and components contained in tap water Can prevent the scale from accumulating.

これに対して塩化カルシウムは空気中の炭酸ガスが水溶液に溶け込むことにより炭酸カルシウムなどのスケールを析出することがあり、硫酸はpH(ペーハー)が低いため装置に対する腐食性が高い点で難があり、グリセリンやトリエチレングリコールのように有機系のものは電解の際に次亜塩素酸と反応して次亜塩素酸の効果を弱める欠点があるため、液体吸湿剤としてはスケールを析出したり、次亜塩素酸に影響を与えることが少ない中性の無機物塩化物や臭化物、特に塩化リチウムの水溶液が適している。ここで、中性とは、pHが5〜9の範囲、さらに望ましくはpHが6〜8の範囲である。   On the other hand, calcium chloride may precipitate scales such as calcium carbonate when carbon dioxide in the air dissolves in the aqueous solution, and sulfuric acid has difficulty in that it is highly corrosive to the equipment because of its low pH. In addition, organic substances such as glycerin and triethylene glycol have the disadvantage of reacting with hypochlorous acid during electrolysis to weaken the effect of hypochlorous acid, so that liquid hygroscopic agents may deposit scale, Neutral inorganic chlorides and bromides that have little effect on hypochlorous acid, especially aqueous solutions of lithium chloride are suitable. Here, neutral means that the pH is in the range of 5-9, more preferably the pH is in the range of 6-8.

電解水の循環経路を示す概略図である図6において、前記貯留部42Bにはリザーバータンクを兼ねる給水タンク41がその給水口を貯留部42Bの底に向けられて配設されており、この給水口にはフロートバルブが設けられ、貯留部42Bの水面が給水口よりも下になると、このフロートバルブが開放されることにより、給水タンク41から必要量の水が供給され、貯留部42Bの水位が一定に保たれる仕組みとなっている。   In FIG. 6, which is a schematic diagram showing the circulation path of the electrolyzed water, a water supply tank 41 also serving as a reservoir tank is disposed in the storage part 42B with its water supply port facing the bottom of the storage part 42B. A float valve is provided at the mouth, and when the water surface of the reservoir 42B is below the water inlet, the float valve is opened, so that a necessary amount of water is supplied from the water supply tank 41 and the water level of the reservoir 42B. Is a mechanism that keeps constant.

また、循環ポンプ44は配水管71と接続され、且つ電磁弁73が挿入された分岐管74を介して給水タンク41に接続されている。従って、液体吸湿剤としての塩化リチウムが空気中の水分を吸収することにより、貯水槽42の貯留部42Bに設けられた水位センサ77が貯留部42Bの水位上昇を検出すると、制御部60は電磁弁73を開くと共に循環ポンプ44を駆動させて、貯留部42Bの循環水を循環ポンプ44及び分岐管74を介して給水タンク41に移送し、貯留部42Bの水位が一定以上に上昇しないようにしている。そして、逆に貯留部42Bの水位が一定以下に低下したときには、前述したように、フロートバルブが開放し、給水タンク41に保管された循環水はその給水口から貯留部42Bに戻される。   The circulation pump 44 is connected to the water distribution tank 71 and connected to the water supply tank 41 via a branch pipe 74 into which an electromagnetic valve 73 is inserted. Therefore, when the water level sensor 77 provided in the storage part 42B of the water storage tank 42 detects a rise in the water level of the storage part 42B by the lithium chloride as the liquid hygroscopic agent absorbing moisture in the air, the control part 60 is electromagnetically The valve 73 is opened and the circulation pump 44 is driven to transfer the circulating water in the reservoir 42B to the water supply tank 41 via the circulation pump 44 and the branch pipe 74 so that the water level in the reservoir 42B does not rise above a certain level. ing. On the other hand, when the water level in the reservoir 42B falls below a certain level, as described above, the float valve is opened, and the circulating water stored in the water supply tank 41 is returned from the water supply port to the reservoir 42B.

また、貯留部42Bの底部には、排水された電解水を貯留する排水タンク57と貯留部42Bとを接続する排水管55が配設されており、排水管55には貯留部42Bの排水を制御する排水バルブ56が取り付けられている。この排水バルブ56が開かれると貯留部42Bから排水タンク57に電解水が排水されると共に、給水タンク41のフロートバルブが作動して新しい水若しくは保管されていた循環水が貯留部42Bに供給される。   In addition, a drainage pipe 55 that connects the drainage tank 57 that stores the drained electrolyzed water and the storage part 42B is disposed at the bottom of the storage part 42B, and the drainage pipe 55 drains the storage part 42B. A drain valve 56 to be controlled is attached. When the drain valve 56 is opened, the electrolyzed water is drained from the reservoir 42B to the drain tank 57, and the float valve of the water supply tank 41 is activated to supply new water or stored circulating water to the reservoir 42B. The

即ち、図6中に破線で示すように、電磁弁73、水位センサ77、電解槽46、循環ポンプ44及び排水バルブ56は、それぞれ制御部60に接続され、制御部60の制御に従って図7に示すように動作する。   That is, as indicated by a broken line in FIG. 6, the electromagnetic valve 73, the water level sensor 77, the electrolytic bath 46, the circulation pump 44, and the drain valve 56 are connected to the control unit 60, respectively. Works as shown.

先ず、空気除菌装置1の電源がON(オン)になると(ステップS1)、水位センサ77により貯留部42Bの水位検出が行われ(ステップS2)、水位センサ77の検出出力に基づいて制御部60が水位が正常であると判断すると電解槽46で循環水が電気分解される電解制御を開始させて(ステップS3)、電解水を生成する。また、電解制御が開始されると、制御部60は循環ポンプ44を運転させると共に送風ファン31による送風を開始させ(ステップS4)、気液接触部材53での次亜塩素酸などを含む電解水と空気との接触により空気の除菌を行わせると共に、電解水に含まれる液体吸湿剤(塩化リチウム)により空気中の水分が吸収される。   First, when the power of the air sterilizer 1 is turned on (step S1), the water level sensor 77 detects the water level of the reservoir 42B (step S2), and the control unit based on the detection output of the water level sensor 77. If 60 determines that the water level is normal, electrolysis control in which the circulating water is electrolyzed in the electrolytic cell 46 is started (step S3) to generate electrolyzed water. When the electrolysis control is started, the control unit 60 operates the circulation pump 44 and starts air blowing by the blower fan 31 (step S4), and electrolyzed water containing hypochlorous acid and the like in the gas-liquid contact member 53. The air is sterilized by contact with air, and moisture in the air is absorbed by the liquid moisture absorbent (lithium chloride) contained in the electrolyzed water.

この除菌運転中に水位センサ77による水位検出が定期的に行われ(ステップS5)、液体吸湿剤(塩化リチウム)の水分吸収により貯留部42Bでの水位が所定量以上に上昇すると、制御部60により水位センサ77からの検出出力により貯留部42Bの水量が過剰であると判断され、この場合には、循環ポンプ44を運転させながら電磁弁73を開とし(ステップS6)、貯留部42Bの循環水は給水タンク41に移送され、保管される。   During this sterilization operation, the water level sensor 77 periodically detects the water level (step S5), and when the water level in the storage unit 42B rises to a predetermined amount or more due to the moisture absorption of the liquid humectant (lithium chloride), the control unit 60, it is determined from the detection output from the water level sensor 77 that the amount of water in the reservoir 42B is excessive. In this case, the solenoid valve 73 is opened while the circulation pump 44 is operated (step S6), and the reservoir 42B The circulating water is transferred to the water supply tank 41 and stored.

逆に、室内が極度に乾燥して液体吸湿剤(塩化リチウム)の水分吸収よりも気液接触部材53での水分蒸発が上回る場合には貯留部42Bでの水位が低下し、水位センサ77からの検出出力により貯留部42Bの水量が過少であると制御部60が判断すると、空気除菌装置1の運転を停止させ(ステップS7)、報知手段である渇水アラーム灯を点灯させる(ステップS8)。この貯留部42Bの水量が過少である場合には、循環水の塩化リチウムの濃度が濃過ぎて、好ましくない。   On the contrary, when the room is extremely dried and the water evaporation in the gas-liquid contact member 53 exceeds the water absorption of the liquid hygroscopic agent (lithium chloride), the water level in the storage unit 42B decreases, and the water level sensor 77 If the control unit 60 determines that the amount of water in the storage unit 42B is too small based on the detected output, the operation of the air sterilization apparatus 1 is stopped (step S7), and the drought alarm lamp as the notification means is turned on (step S8). . If the amount of water in the reservoir 42B is too small, the concentration of the circulating water lithium chloride is too high, which is not preferable.

この実施形態では循環水移送用のポンプとして循環ポンプ44を共用したが、循環水移送専用のポンプと電磁弁を有する循環水移送手段を設けても良い。また、水位センサ77からの検出出力により貯留部42Bの循環水の塩化リチウムの濃度を推定できるため、電解槽46での電解制御を調整し、次亜塩素酸を含む電解水を過度に生成させないようにすることもできる。   In this embodiment, the circulating pump 44 is shared as a circulating water transfer pump. However, a circulating water transfer means having a pump dedicated to circulating water transfer and an electromagnetic valve may be provided. Moreover, since the density | concentration of the lithium chloride of the circulating water of the storage part 42B can be estimated from the detection output from the water level sensor 77, the electrolysis control in the electrolytic vessel 46 is adjusted, and electrolyzed water containing hypochlorous acid is not generated excessively. It can also be done.

その場合、塩化リチウムの濃度は40%〜10%(W/V)、望ましくは30%〜10%、更に望ましくは25%〜10%の範囲となるように制御し、濃度がそれ以外の範囲になる場合にはエラーとし、運転を停止するようにすれば、貯留部42Bの循環水が必要以上に増加しないようにできる。   In that case, the concentration of lithium chloride is controlled to be in the range of 40% to 10% (W / V), preferably 30% to 10%, more preferably 25% to 10%, and the concentration is in the other range. If it becomes an error and the operation is stopped, the circulating water in the reservoir 42B can be prevented from increasing more than necessary.

また、本実施形態のように、リザーバータンクを兼ねる給水タンク41を用いるものでは過剰な循環水は給水タンク41に移送・保管し、万一渇水状態になる場合は給水タンク41に水を補給することにより運転を再開することができる。このため、給水タンク41に水を頻繁に補給する必要がなく、使用者の使い勝手を向上できる。また、水道水等を頻繁に補給しなくて良いので、気液接触部材53や貯留部42Bへのスケールの付着が少なく、気液接触部材53を長期にわたって使用できるとともに、装置のメンテナンスが容易となる。なお、循環水として補給する水は脱塩水が好ましいが、補給回数が少なくなるので、水道水でも問題はない。   Further, as in this embodiment, in the case of using a water supply tank 41 that also serves as a reservoir tank, excess circulating water is transferred and stored in the water supply tank 41, and in the unlikely event of drought, the water supply tank 41 is replenished with water. The operation can be resumed. For this reason, it is not necessary to supply water to the water supply tank 41 frequently, and user convenience can be improved. Moreover, since it is not necessary to replenish tap water etc. frequently, there is little adhesion of the scale to the gas-liquid contact member 53 and the storage part 42B, the gas-liquid contact member 53 can be used over a long period of time, and apparatus maintenance is easy. Become. In addition, although demineralized water is preferable as water to be replenished as circulating water, there is no problem even with tap water because the number of replenishment is reduced.

なお、前述したように、配水管71を分岐して電磁弁73が挿入された分岐管74を設けて循環ポンプ44と給水タンク41とを接続して、循環ポンプ44を運転させながら電磁弁73を開として、過剰な貯留部42B内の循環水を給水タンク41に移送・保管する代わりに、図8に示すように、給水タンク41にエアポンプ78を設けて、同様に過剰な貯留部42B内の循環水を給水タンク41に移送・保管してもよい。   As described above, the branch pipe 74 into which the water distribution pipe 71 is branched and the electromagnetic valve 73 is inserted is provided to connect the circulation pump 44 and the water supply tank 41, and the solenoid valve 73 is operated while the circulation pump 44 is operated. Instead of transferring and storing the circulating water in the excessive reservoir 42B to the water supply tank 41, an air pump 78 is provided in the water supply tank 41 as shown in FIG. The circulating water may be transferred and stored in the water supply tank 41.

即ち、水位センサ77からの検出出力に基づいて、制御部60が貯留部42Bの水量が過剰であると判断した場合に、エアポンプ78を作動させ、給水タンク41の内部を負圧にすることにより、貯留部42Bの循環水を給水タンク41に移送・保管する。この場合には、循環水移送用のための分岐管、ポンプ及び電磁弁は不要となる。   That is, based on the detection output from the water level sensor 77, when the control unit 60 determines that the amount of water in the storage unit 42B is excessive, the air pump 78 is activated to make the inside of the water supply tank 41 have a negative pressure. Then, the circulating water in the storage unit 42B is transferred to and stored in the water supply tank 41. In this case, a branch pipe, a pump and a solenoid valve for transferring circulating water are not necessary.

図9及び図10はその他の実施形態を示すものであり、貯留部42Bを深絞りとして貯水部79を設けることにより、貯留部42Bの基準となる水位に対して数倍(例えば、4倍程度)まで液体吸湿剤の吸水により水位が上昇しても循環水を貯水部79で保管してオーバーフローしないようにしてある。また、循環ポンプ44は水位が変化しても給水が可能になるように、その下端部が貯水部79底面近くまで延びるように、給水パイプ80を長くする。また、湿度が高いと吸水量も増えてしまうので、湿度センサを設置して、一定湿度、例えば湿度80%以上では、装置を停止させるような制御を行ってもよい。   FIG. 9 and FIG. 10 show other embodiments. By providing the water storage part 79 with the storage part 42B as a deep drawing, the water level that is the reference of the storage part 42B is several times (for example, about 4 times). ), Even if the water level rises due to water absorption by the liquid hygroscopic agent, the circulating water is stored in the water storage part 79 so as not to overflow. Further, the circulation pump 44 lengthens the water supply pipe 80 so that the lower end thereof extends to the vicinity of the bottom surface of the water storage part 79 so that water can be supplied even if the water level changes. Further, since the amount of water absorption increases when the humidity is high, a humidity sensor may be installed, and control may be performed to stop the apparatus at a certain humidity, for example, at a humidity of 80% or more.

この場合、給水タンクやポンプ等の循環水移送手段が不要となり、図10に示すように、先ず空気除菌装置1の電源がON(オン)になると(ステップS11)、水位センサ77により貯留部42Bの水位検出が行われ(ステップS12)、水位センサ77の検出出力に基づいて制御部60が水位が正常であると判断すると電解槽46で循環水が電気分解される電解制御を開始させて(ステップS13)、電解水を生成する。また、電解制御が開始されると、制御部60は循環ポンプ44を運転させると共に送風ファン31による送風を開始させ(ステップS14)、気液接触部材53での次亜塩素酸などを含む電解水と空気との接触により空気の除菌を行わせると共に、電解水に含まれる液体吸湿剤(塩化リチウム)により空気中の水分が吸収される。   In this case, circulating water transfer means such as a water supply tank or a pump becomes unnecessary, and as shown in FIG. 10, when the air sterilizer 1 is first turned on (step S11), the water level sensor 77 causes the storage unit to 42B water level is detected (step S12), and when the control unit 60 determines that the water level is normal based on the detection output of the water level sensor 77, electrolysis control is started in which the circulating water is electrolyzed in the electrolytic cell 46. (Step S13), electrolyzed water is generated. When the electrolysis control is started, the control unit 60 operates the circulation pump 44 and starts air blowing by the blower fan 31 (step S14), and electrolyzed water containing hypochlorous acid and the like in the gas-liquid contact member 53. The air is sterilized by contact with air, and moisture in the air is absorbed by the liquid moisture absorbent (lithium chloride) contained in the electrolyzed water.

この除菌運転中に水位センサ77による水位検出が定期的に行われ(ステップS15)、室内が極度に乾燥して液体吸湿剤(塩化リチウム)の水分吸収よりも気液接触部材53での水分蒸発が上回る場合には貯留部42Bでの水位が低下して、水位センサ77からの検出出力により貯留部42Bの水量が過少であると制御部60が判断すると、空気除菌装置1の運転を停止させ(ステップS16)、報知手段である渇水アラーム灯を点灯させる(ステップS17)。   During this sterilization operation, the water level is regularly detected by the water level sensor 77 (step S15), and the interior of the room is extremely dried so that the moisture in the gas-liquid contact member 53 is higher than the moisture absorption of the liquid moisture absorbent (lithium chloride). If the evaporation exceeds the water level in the storage unit 42B, and the controller 60 determines that the amount of water in the storage unit 42B is too small based on the detection output from the water level sensor 77, the operation of the air sterilizer 1 is performed. It stops (step S16), and the drought alarm lamp which is a notification means is turned on (step S17).

逆に、過剰の水分吸収により水位が上限に達した場合は、水位センサ77からの検出出力により貯留部42Bの水量が過剰であると制御部60が判断し、空気除菌装置1の運転を停止させ(ステップS18)、報知手段である満水アラーム灯を点灯させる(ステップS19)。   Conversely, when the water level reaches the upper limit due to excessive moisture absorption, the control unit 60 determines that the amount of water in the storage unit 42B is excessive based on the detection output from the water level sensor 77, and the operation of the air sterilizer 1 is performed. It stops (step S18), and the full water alarm lamp which is an alerting | reporting means is lighted (step S19).

なお、上述した実施形態において、電解槽46は一方が正、他方が負となる対の電極を備え、これら電極間に電圧を印加することにより、電解槽46に流入した循環水が電気分解されて次亜塩素酸等を含む電解水が生成される。   In the above-described embodiment, the electrolytic cell 46 includes a pair of electrodes, one of which is positive and the other is negative. By applying a voltage between these electrodes, the circulating water flowing into the electrolytic cell 46 is electrolyzed. Electrolyzed water containing hypochlorous acid and the like is generated.

この次亜塩素酸は広義の活性酸素種に含まれるもので、強力な酸化作用や漂白作用を有する。次亜塩素酸が溶解した水溶液、すなわち空気除菌装置1により生成される電解水は、ウィルス等の不活化、殺菌、有機化合物の分解等、種々の空気清浄効果を発揮する。ここで、活性酸素種とは、通常の酸素よりも高い酸化活性を持つ酸素と、その関連物質のことであり、スーパーオキシドアニオン、一重項酸素、ヒドロキシルラジカル、或いは過酸化水素といった、いわゆる狭義の活性酸素に、オゾン、次亜ハロゲン酸等といった、いわゆる広義の活性酸素を含めたものであり、電極等の選択により種々利用可能である。   This hypochlorous acid is contained in a broad sense of active oxygen species and has a strong oxidizing action and bleaching action. The aqueous solution in which hypochlorous acid is dissolved, that is, the electrolyzed water generated by the air sterilizer 1 exhibits various air cleaning effects such as inactivation of viruses, sterilization, and decomposition of organic compounds. Here, the reactive oxygen species are oxygen having higher oxidation activity than normal oxygen and related substances, such as superoxide anion, singlet oxygen, hydroxyl radical, or hydrogen peroxide, in a narrow sense. The active oxygen includes so-called active oxygen in a broad sense such as ozone and hypohalous acid, and can be used in various ways depending on the selection of electrodes and the like.

また、前記電極には、例えば、白金イリジウム電極や白金ルテニウム電極などの塩素発生電極、白金電極、炭素繊維電極、オゾン発生電極などを利用することができる。   The electrode may be, for example, a chlorine generating electrode such as a platinum iridium electrode or a platinum ruthenium electrode, a platinum electrode, a carbon fiber electrode, an ozone generating electrode, or the like.

以上のように本発明の実施形態について説明したが、上述の説明に基づいて当業者にとって種々の代替例、修正又は変形が可能であり、本発明はその趣旨を逸脱しない範囲で前述の種々の代替例、修正又は変形を包含するものである。     Although the embodiments of the present invention have been described above, various alternatives, modifications, and variations can be made by those skilled in the art based on the above description, and the present invention is not limited to the various embodiments described above without departing from the spirit of the present invention. It encompasses alternatives, modifications or variations.

1 空気除菌装置
31 送風ファン
41 給水タンク(リザーバータンク)
42 貯水槽
42A 水受け部(電解水回収装置)
42B 貯留部
44 循環ポンプ
46 電解槽(電解装置)
53 気液接触部材
60 制御部(制御手段)
73 電磁弁
74 分岐管(連絡通路)
77 水位センサ
78 エアポンプ
79 貯水部
1 Air sanitizer 31 Blower fan 41 Water supply tank (reservoir tank)
42 Water storage tank 42A Water receiving part (electrolyzed water recovery device)
42B Reservoir 44 Circulation Pump 46 Electrolyzer (Electrolyzer)
53 Gas-liquid contact member 60 Control part (control means)
73 Solenoid valve 74 Branch pipe (communication passage)
77 Water level sensor 78 Air pump 79 Water reservoir

Claims (9)

循環水を貯留する貯水槽と、この貯水槽に貯留された循環水を電気分解して活性酸素種を含む電解水を生成する電解装置と、この電解装置によって生成された電解水が供給される気液接触部材と、この気液接触部材に空気を送る送風機と、前記気液接触部材の電解水を前記貯水槽に回収する電解水回収装置とを備え、前記気液接触部材にて活性酸素種を含む電解水と空気を接触させ当該空気を除菌するようにした空気除菌装置において、前記貯水槽に貯留する循環水には液体吸湿剤を含ませてあることを特徴とする空気除菌装置。   A water storage tank for storing the circulating water, an electrolysis apparatus for electrolyzing the circulating water stored in the water storage tank to generate electrolyzed water containing active oxygen species, and electrolyzed water generated by the electrolysis apparatus are supplied. A gas-liquid contact member, a blower for sending air to the gas-liquid contact member, and an electrolyzed water recovery device for recovering the electrolyzed water of the gas-liquid contact member to the water storage tank. In the air sterilization apparatus in which the electrolyzed water containing seeds and air are brought into contact with each other to sterilize the air, the circulating water stored in the water storage tank contains a liquid hygroscopic agent. Bacteria device. 前記液体吸湿剤が無機物の液体吸湿剤であることを特徴とする請求項1に記載の空気除菌装置。   The air sanitizer according to claim 1, wherein the liquid hygroscopic agent is an inorganic liquid hygroscopic agent. 前記液体吸湿剤が中性の液体吸湿剤であることを特徴とする請求項1に記載の空気除菌装置。   The air sanitizer according to claim 1, wherein the liquid hygroscopic agent is a neutral liquid hygroscopic agent. 前記液体吸湿剤が塩化リチウムであることを特徴とする請求項1に記載の空気除菌装置。   The air sterilizer according to claim 1, wherein the liquid hygroscopic agent is lithium chloride. 液体吸湿剤を含ませた循環水を貯留する貯水槽と、この貯水槽に貯留された循環水を電気分解して活性酸素種を含む電解水を生成する電解装置と、この電解装置によって生成された電解水が供給される気液接触部材と、この気液接触部材に空気を送る送風機と、前記気液接触部材の電解水を前記貯水槽に回収する電解水回収装置と、前記液体吸湿剤が吸収した水分により前記貯水槽の水位が所定以上に上昇したときに前記貯水槽の循環水の水位を調整する水位調整手段とを備えたことを特徴とする空気除菌装置。   A water storage tank for storing circulating water containing a liquid hygroscopic agent, an electrolysis apparatus for electrolyzing the circulating water stored in the water storage tank to generate electrolyzed water containing active oxygen species, and the electrolysis apparatus A gas-liquid contact member to which the electrolyzed water is supplied, a blower for sending air to the gas-liquid contact member, an electrolyzed water recovery device for recovering the electrolyzed water of the gas-liquid contact member to the water storage tank, and the liquid hygroscopic agent An air sterilizer comprising: water level adjusting means for adjusting the level of circulating water in the water tank when the water level of the water tank rises to a predetermined level or more due to moisture absorbed by the water tank. 前記水位調整手段は、前記貯水槽の水位を検出する水位センサと、リザーバータンクと、前記水位センサの検出出力に応じて前記貯水槽の循環水を前記リザーバータンクに移送する循環水移送手段とからなることを特徴とする請求項5に記載の空気除菌装置。   The water level adjusting means includes a water level sensor for detecting the water level of the water storage tank, a reservoir tank, and circulating water transfer means for transferring the circulating water of the water storage tank to the reservoir tank in accordance with a detection output of the water level sensor. The air disinfection device according to claim 5, wherein 前記循環水移送手段は、前記貯水槽と前記リザーバータンクとの連絡通路に設けられたポンプ及び弁と、これらポンプ及び弁を制御する制御手段とからなることを特徴とする請求項6に記載の空気除菌装置。   The said circulating water transfer means consists of a pump and a valve provided in a communication passage between the water storage tank and the reservoir tank, and a control means for controlling the pump and the valve. Air sanitizer. 前記循環水移送手段は、前記リザーバータンクに設けられ該リザーバータンク内部の空気を排出するエアポンプと、このエアポンプを制御する制御手段とからなることを特徴とする請求項6に記載の空気除菌装置。   The air sterilizer according to claim 6, wherein the circulating water transfer means includes an air pump provided in the reservoir tank for discharging air inside the reservoir tank, and a control means for controlling the air pump. . 前記水位調整手段は、前記貯水槽を深絞りとすることにより該貯水槽と一体に設けられた水位調整用の貯水部であることを特徴とする請求項5に記載の空気除菌装置。   6. The air sterilizer according to claim 5, wherein the water level adjusting means is a water level adjusting water storage unit provided integrally with the water storage tank by deep drawing the water storage tank.
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