JP2005245998A - Bactericidal and deodorizing filter, and air purifier equipped with the same - Google Patents

Bactericidal and deodorizing filter, and air purifier equipped with the same Download PDF

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JP2005245998A
JP2005245998A JP2004101258A JP2004101258A JP2005245998A JP 2005245998 A JP2005245998 A JP 2005245998A JP 2004101258 A JP2004101258 A JP 2004101258A JP 2004101258 A JP2004101258 A JP 2004101258A JP 2005245998 A JP2005245998 A JP 2005245998A
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filter
deodorizing
sterilization
bacteria
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Hirobumi Miyagawa
博文 宮川
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<P>PROBLEM TO BE SOLVED: To improve function and duration of a filter with bactericidal and deodorizing functions, and to provide a combined bactericidal and deodorizing filter to prevent odor from being generated even when an air purifier is off. <P>SOLUTION: The air purifier provided with a filter containing apatite in titanium oxide is illustrated as follows. Odors, bacteria, and viruses from an air inlet 1 are passed through a prefilter 2 to remove rough dust and dirt, removed by a high efficiency particle arrestance (HEPA) filter 3, and then removed by a bactericidal and deodorizing filter 6 (a honeycomb filter supporting titanium oxide, inorganic porous materials, and apatite) being irradiated by a ultraviolet light emitter 5 for improved bactericidal and deodorizing efficiency, which stabilizes bactericidal and deodorizing performance and makes it suitable. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

発明の詳細な説明Detailed Description of the Invention

本発明は殺菌・脱臭フィルターに関し、特に、より詳細には、室内にある臭気ガスや細菌、ウィルスを分解し、吸着する脱臭、除菌の機能を有する殺菌・脱臭フィルタとそれを備えた空気清浄機、殺菌・脱臭装置に関する。The present invention relates to a sterilization / deodorization filter, and more particularly, a sterilization / deodorization filter having a function of deodorizing and sterilizing by decomposing and adsorbing odorous gas, bacteria, and viruses in a room, and an air cleaner provided with the same Machine, sterilization / deodorization equipment.

生活の質の高度化に伴い、住環境の快適さや安全性を追求することが求められている。特に気密性の高い家屋では臭いや細菌を取り除きたいという要望が強まっている。これに対し、空調装置を中心とする電気機器にも脱臭・消臭の機能が取り入れられてたが、これらは一般に活性炭フィルターや、光触媒酸化、オゾン酸化により機能するものであった。また、除菌の機能が取り入れられた物としては、除菌イオン、マイナスイオン、酸素イオン等があった。As the quality of life increases, it is required to pursue comfort and safety in the living environment. In particular, there is a growing demand for removing odors and bacteria in highly airtight houses. On the other hand, the deodorizing and deodorizing functions have been incorporated into electric devices such as air conditioners, but these generally function by activated carbon filters, photocatalytic oxidation, and ozone oxidation. Moreover, as a thing in which the function of disinfection was taken in, there existed disinfection ion, a negative ion, oxygen ion, etc.

また、室内の気密性を高くし自然換気率を極端に低下させたため、室内でのアレルギー原やウィルス、細菌等が長く停滞することになるため、室内での細菌感染の原因の一つと考えられている。この様なことから、殺菌と脱臭を同時に行う空気殺菌・脱臭装置を実現することが望まれている。In addition, because the airtightness in the room is increased and the natural ventilation rate is extremely reduced, allergens, viruses, bacteria, etc. in the room will stay for a long time, which is considered one of the causes of bacterial infection in the room. ing. For this reason, it is desired to realize an air sterilization / deodorization apparatus that simultaneously performs sterilization and deodorization.

脱臭を効果的にかつ安全に行うためには、脱臭、消臭フィルターを用いる必要がある。
また、除菌を効果的にかつ安全に行うためには、抗菌フィルターや光触媒フィルターなどを用いる必要がある。これまでの空気清浄機では、まず、集塵フィルターで塵やゴミを取り除き、次に光触媒により臭気、細菌、ウィルスを分解して脱臭、除菌を行うか、集麈フィルターであるヘパやウルパ等の高効率粒子除去フィルターの下流側(風下)に光触媒を含む脱臭、除菌フィルターを配置したものや、さらに風下に遷移金属キレート化合物(例、フタロシアニン)を担持した消臭フィルターを配置したものがある。また、前記高効率粒子除去フィルターの上流側(風上)に遷移金属キレート化合物(例、フタロシアニン)を担持した消臭フィルターを配置している。しかしながら、前記配置方式では、集麈フィルターに吸着した臭気、細菌、ウィルスは分解されないまま残され、それが室内に放出される問題がある。
また、電源が入っていない場合は、光触媒が働かないため、末処理のまま残されている臭気分子や細菌、ウィルスが光触媒フィルターや集塵フィルターから離脱し、室内に放出されるという問題があった。
後記配置方式では、集塵フィルターに吸着した臭気、細菌、ウィルスは分解されないまま残され、それが室内に放出される問題や、未処理のまま残されている臭気分子や細菌、ウィルスが光触媒フィルターや集塵フィルターから離脱し、室内に放出されるという問題の対策が行われた方式であるが、一定の効果はあるが専用の消臭フィルターが必要なことや、遷移金属キレート化合物には消臭寿命があり、除菌機能は少ないことや、ユーザーへの経費負担が問題であった。
In order to perform deodorization effectively and safely, it is necessary to use a deodorizing and deodorizing filter.
Moreover, in order to perform sterilization effectively and safely, it is necessary to use an antibacterial filter, a photocatalyst filter, or the like. In conventional air purifiers, first remove dust and debris with a dust collection filter, then deodorize and disinfect by deodorizing odors, bacteria and viruses with a photocatalyst, or hepa or urpa as a collection filter A deodorizing / disinfecting filter containing a photocatalyst is placed downstream of the high-efficiency particle removal filter (downwind), and a deodorizing filter carrying a transition metal chelate compound (eg, phthalocyanine) is placed further downwind. is there. In addition, a deodorizing filter carrying a transition metal chelate compound (eg, phthalocyanine) is disposed upstream (upwind) of the high efficiency particle removal filter. However, in the arrangement method, there is a problem that odor, bacteria and viruses adsorbed on the collecting filter are left undecomposed and released into the room.
In addition, when the power is not on, the photocatalyst does not work, so there is a problem that odor molecules, bacteria, and viruses that are left in the final treatment leave the photocatalyst filter and dust collection filter and are released into the room. It was.
In the arrangement method described later, the odor, bacteria, and viruses adsorbed on the dust collection filter are left undecomposed and released into the room, and the odor molecules, bacteria, and viruses left untreated are removed by the photocatalytic filter. This is a method that takes measures against the problem of being released from the dust collection filter and released into the room, but has a certain effect, but requires a special deodorizing filter, and it does not apply to transition metal chelate compounds. The problem was that it had an odor life, few sterilization functions, and cost burden to users.

発明が解決するための手段Means for Solving the Invention

本発明では、以下のフィルター構成により上記解決課題を解決した。〈第一の例〉集塵フィルターであるヘパやウルパ等の高効率粒子除去フィルターの下流側(風下)に殺菌・脱臭フィルターを配置し、さらに、光触媒作用を起こさせる紫外線発光体を殺菌・脱臭フィルターの上流(風上)若しくは下流(風下)に配置する。〈第二の例〉また、前記高効率粒子除去フィルターの上流側(風上)に殺菌・脱臭フィルターを配置し、さらに、光触媒作用を起こさせる紫外線発光体を殺菌・脱臭フィルターの上流(風上)若しくは下流(風下)に配置する。〈第三の例〉集塵フィルターは簡単なネット状プレフィルターとし、その下流側(風下)に第一殺菌・脱臭フィルター(又は本発明フィルタからアパタイトを除いたフィルタ)を配置し、さらに光触媒作用に必要とする紫外線出力以上の高出力の紫外線発光体(波長200〜360nm)を配置、その下流(風下)に第二殺菌・脱臭フィルターを配置する。In the present invention, the above problem is solved by the following filter configuration. <First example> A sterilization / deodorization filter is placed downstream (downwind) of a high-efficiency particle removal filter such as hepa or urpa, which is a dust collection filter, and an ultraviolet emitter that causes photocatalysis is sterilized / deodorized. Place upstream (upwind) or downstream (downwind) of the filter. <Second example> Further, a sterilization / deodorization filter is disposed upstream (upwind) of the high-efficiency particle removal filter, and an ultraviolet light emitter that causes photocatalysis is disposed upstream of the sterilization / deodorization filter (upwind). ) Or downstream (leeward). <Third example> The dust collection filter is a simple net-shaped pre-filter, and the first sterilization / deodorization filter (or the filter excluding the apatite from the filter of the present invention) is placed downstream (downstream), and further photocatalytic action. An ultraviolet light emitter (wavelength 200 to 360 nm) having a higher output than the necessary ultraviolet output is disposed, and a second sterilizing / deodorizing filter is disposed downstream thereof (downwind).

上記の構成を採ることにより、〈第一の例〉は塵、ゴミ、ダスト、臭気分子、細菌、ウィルスは、まず、高効率粒子除去フィルターにより除去される。除去されなかった残りの臭気、細菌、ウィルスは殺菌・脱臭フィルターにより取り除かれる。この光触媒保持層を含むフィルターは、光触媒反応により発生したOHラジカルによって臭気、細菌の分解、不活化される。また、分解されなかった臭気分子や細菌、ウィルスは担持したアパタイトにより吸着され、光触媒反応により分解されるまで保持される。By adopting the above configuration, in the <first example>, dust, dust, dust, odor molecules, bacteria, and viruses are first removed by a high-efficiency particle removal filter. The remaining odors, bacteria, and viruses that have not been removed are removed by a sterilizing / deodorizing filter. The filter including the photocatalyst holding layer is decomposed and inactivated by odors and bacteria by OH radicals generated by the photocatalytic reaction. In addition, odor molecules, bacteria, and viruses that have not been decomposed are adsorbed by the supported apatite and retained until they are decomposed by a photocatalytic reaction.

ここでは、もし、電源がきられ紫外線発光体が点灯せず光触媒が働かない状態であっても、臭気分子、細菌やウィルスに対してアパタイトにより保持され。再電源投入持まで放出されることはない。Here, even if the power is turned off, the ultraviolet light emitter is not turned on and the photocatalyst does not work, it is retained by apatite against odor molecules, bacteria and viruses. It will not be released until the power is turned on again.

〈第二の例〉は、〈第一の例〉において集塵フィルターに細菌・ウィルスが付着する問題を解決した物である。The <second example> is a solution to the problem that bacteria and viruses adhere to the dust collection filter in the <first example>.

〈第三の例〉は波長253.7nmの殺菌紫外線光を用い、細菌、ウィルスの除菌、不活化を重視した構成内容にした物である。The third example uses a germicidal ultraviolet light with a wavelength of 253.7 nm and has a structure that emphasizes the sterilization and inactivation of bacteria and viruses.

そして、請求項の各発明は次の技術手段を構成する。請求項1の発明は、空気を流通させるフィルターに光を受けることにより触媒として機能する光触媒保持層にアパタイトを担持させたことを特徴とし、従来の臭気吸着材料(ゼオライト、活性炭等)のようなフィルターからの臭気分子、細菌、ウィルスの再放出が起こらないフィルターを得、煩雑にフィルター交換する必要のない、再放出防止のためのフィルターを別途必要としない、安定な機能を実現し、特に、有機物質にたいしての吸着力が特に高いことが特徴であるアパタイトを採用することにより、従来にない高い脱臭効果を実現できることを特徴とする。Each invention of the claims constitutes the following technical means. The invention of claim 1 is characterized in that apatite is supported on a photocatalyst holding layer that functions as a catalyst by receiving light through a filter that circulates air, such as a conventional odor adsorbing material (zeolite, activated carbon, etc.). Obtaining a filter that does not cause re-release of odor molecules, bacteria, and viruses from the filter, realizing a stable function that does not require complicated filter replacement, and does not require a separate filter for preventing re-release. By adopting apatite, which is characterized by a particularly high adsorptive power for organic substances, it is characterized in that it can realize an unprecedented high deodorizing effect.

請求項2の発明は、請求項1の発明において、前記光触媒保持層として、酸化チタンをもちいることを特徴とし、光を受けることにより、触媒として有効に機能する光触媒の具体的な材料が与えられるようにしたものである。The invention of claim 2 is characterized in that, in the invention of claim 1, titanium oxide is used as the photocatalyst holding layer, and a specific material of a photocatalyst that functions effectively as a catalyst is provided by receiving light. It is intended to be.

請求項3の発明は、請求項1または2の発明において、前記殺菌・脱臭フィルターが、さらに無機多孔質材料と臭気吸着材料(ゼオライト、活性炭等)を含ませた、無機多孔質臭気吸着材料と混合された状態で用いることを特徴とし、殺菌・脱臭フィルターの脱臭効率を向上させることが可能になるようにしたものである。The invention of claim 3 is the inorganic porous odor adsorbing material according to claim 1 or 2, wherein the sterilizing / deodorizing filter further contains an inorganic porous material and an odor adsorbing material (zeolite, activated carbon, etc.) It is characterized in that it is used in a mixed state, and the deodorizing efficiency of the sterilizing / deodorizing filter can be improved.

請求項4の発明は、請求項1ないし3いずれか1の発明において、前記殺菌・脱臭フィルターにたいして触媒作用として機能するために照射する紫外線発光体の波長を殺菌効果のある波長(200〜360nm)にして、特にタンパク質(細菌、ウィルス)にたいしての吸着力が特に高いことが特徴であるアパタイトを採用することにより、従来にない高い除菌、不活化を実現できることを特徴とする。The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein the wavelength of the ultraviolet luminescent material irradiated to function as a catalytic action for the sterilizing / deodorizing filter is a wavelength having a sterilizing effect (200 to 360 nm). By adopting apatite, which is characterized by particularly high adsorptive power for proteins (bacteria and viruses), it is possible to realize high sterilization and inactivation unprecedented.

発明の効果The invention's effect

本発明によると、従来の吸着物質や集塵フィルターにより集塵、吸着した場合に起きる集塵、吸着した臭気、細菌、ウィルスが脱臭、除菌、不活化処理をされないままで残され、それが室内に再放出されて臭いや、細菌感染する問題。また、空気清浄機の電源が入っていない場合に光触媒が働かないため起きる、未処理のまま残されている細菌、ウィルス、臭気分子が装置から、室内に放出されるという問題や、電源再投入時の装置内の温度上昇に伴うフィルターからの、臭気分子、細菌、ウィルスの再放出のいずれも生じることが無くなるため、より効果的にかつ安定的に脱臭と除菌、不活化の両方の機能を発揮することが出来る殺菌・脱臭フィルターを備えた空気清浄機や空気殺菌・脱臭装置が実現できる。また、本発明の殺菌・脱臭フィルターは、上記した利点に加えて、フィルター寿命が長いため、煩雑にフィルター交換する必要がないことから、ユーザーに快適な居住環境を提供する事に貢献し得る。According to the present invention, dust collected by a conventional adsorbing substance or dust collecting filter, dust collection that occurs when adsorbed, adsorbed odor, bacteria, and virus are left undeodorized, sterilized, and inactivated. The problem is that it is re-released indoors and becomes odor or bacterial infection. Also, if the air cleaner is not turned on, the photocatalyst will not work, causing problems such as untreated bacteria, viruses, and odor molecules being released from the device into the room, and turning on the power again. Since both the odor molecules, bacteria and viruses are not released again from the filter due to the temperature rise in the device at the time, the functions of both deodorization, sterilization and inactivation are more effective and stable. An air purifier or an air sterilization / deodorization device equipped with a sterilization / deodorization filter capable of exhibiting the above can be realized. In addition to the above-described advantages, the sterilizing / deodorizing filter of the present invention has a long filter life, so that it is not necessary to replace the filter in a complicated manner. Therefore, it can contribute to providing a comfortable living environment for the user.

以下に、本発明の実施の形態を添付された図面を参照して説明することにより、本発明をより詳細に述べる。なお、実施の形態を説明するための全図において、同一の作用をする部分には同一の符号を付け、その繰り返しの説明は省略し、先の記述を参照することとする。Hereinafter, the present invention will be described in more detail by describing embodiments of the present invention with reference to the attached drawings. Note that components having the same function are denoted by the same reference symbols throughout the drawings for describing the embodiments, and the repetitive description thereof is omitted and the previous description is referred to.

図1は、本発明による殺菌・脱臭フィルターを空気清浄機に適用した一実例形態を説明するための概略図である。図1中、1は空気取り入れ口、2はプレフィルター、3は高効率粒子除去フィルター(ヘパフィルター)、4は送風機、5は紫外線発光体、6は殺菌・脱臭フィルター、7は空気吹き出し口である。FIG. 1 is a schematic view for explaining an example form in which the sterilizing / deodorizing filter according to the present invention is applied to an air purifier. In FIG. 1, 1 is an air intake port, 2 is a pre-filter, 3 is a high-efficiency particle removal filter (hepa filter), 4 is a blower, 5 is an ultraviolet light emitter, 6 is a sterilization / deodorization filter, and 7 is an air outlet. is there.

また、図2は、本発明による殺菌・脱臭フィルターを適用した他の実施形態を説明するための概略図である。図2中、1、2の次に8殺菌・脱臭フィルターを配置し、さらに8の前後何れかに9紫外線発光体配置、らに風下に3、4、5、6、7と配置する。FIG. 2 is a schematic view for explaining another embodiment to which the sterilizing / deodorizing filter according to the present invention is applied. In FIG. 2, 8 sterilization / deodorization filters are arranged next to 1 and 2, and 9 ultraviolet light emitters are arranged either before or after 8, and 3, 4, 5, 6, 7 are arranged further downwind.

図3は、本発明による殺菌・脱臭フィルターを空気殺菌・脱臭装置に適用した一実例形態を説明するための概略図である。図3中、1、2の次に8を配置し、風下に配置する6との間に10紫外線発光体(波長200〜360nm)を配置し、6の風下に4、7を配置する。FIG. 3 is a schematic view for explaining an example form in which the sterilization / deodorization filter according to the present invention is applied to an air sterilization / deodorization apparatus. In FIG. 3, 8 is arranged next to 1 and 2, 10 ultraviolet light emitters (wavelengths of 200 to 360 nm) are arranged between 6 and 6 arranged on the leeward side, and 4 and 7 are arranged on the leeward side of 6.

まず、本発明による殺菌・脱臭フィルターを空気清浄機に適用した上記図1及び2に示す実施形態と殺菌・脱臭フィルターを空気殺菌・脱臭装置に適用した図3に示す実施形態に共通する構成要素について説明する。本発明のフィルターは、光を受けることにより触媒機能をもつ光触媒フィルターに高吸着能力をもつアパタイトを担持する構成からなる。以下に、本実例形態で用いるこれらのフィルターの具体例について述べる。First, components common to the embodiment shown in FIGS. 1 and 2 in which the sterilization / deodorization filter according to the present invention is applied to an air cleaner and the embodiment shown in FIG. 3 in which the sterilization / deodorization filter is applied to an air sterilization / deodorization apparatus. Will be described. The filter of the present invention has a configuration in which apatite having high adsorption ability is supported on a photocatalytic filter having a catalytic function by receiving light. Hereinafter, specific examples of these filters used in the present embodiment will be described.

まず、光を受けることにより触媒機能をもつ光触媒(酸化チタン)は、特にアナターゼ型結晶系が望ましい。さらに、光触媒の脱臭効率を向上させるために、光触媒と多孔質吸着材料を混合しバインダを用いて結合する。このとき、これらの多孔質吸着材料やバインダは光触媒機能で分解されにくい、無機化合物質を用いる。ここで用いる多孔質吸着材料としては、一般的なゼオライト、セビオライト、多孔質ケイ酸塩鉱物、及び多孔質セラミックス等から選ばれた一つ、あるいは複数の混合物からなる材料が適当である。これらの多孔質吸着材は、なるべく表面積が大きいものを選ぶ必要がある。また、光源は紫外光を照射するもの(ブラックライト等)が望ましいが、400nm以下の波長を含む光源であればよい。しかし、本発明においては200〜360nmの波長に範囲を定めることにより、アパタイトに捕集吸着された細菌、ウィルスを高効率で除菌、不活化できることを可能にしている。First, an anatase type crystal system is desirable as a photocatalyst (titanium oxide) having a catalytic function by receiving light. Furthermore, in order to improve the deodorizing efficiency of the photocatalyst, the photocatalyst and the porous adsorbing material are mixed and combined using a binder. At this time, these porous adsorbing materials and binders use inorganic compound materials that are difficult to be decomposed by the photocatalytic function. As the porous adsorbing material used here, a material composed of one or a plurality of mixtures selected from general zeolite, ceviolite, porous silicate mineral, porous ceramics and the like is appropriate. These porous adsorbents should be selected to have as large a surface area as possible. The light source is preferably one that irradiates ultraviolet light (black light or the like), but may be any light source including a wavelength of 400 nm or less. However, in the present invention, by setting the range to a wavelength of 200 to 360 nm, it is possible to sterilize and inactivate bacteria and viruses collected and adsorbed on apatite with high efficiency.

また、近年、二酸化チタンの表面を直接アパタイト粒子が覆う技術が開発された。具体例として、フッ化アパタイト二酸化チタン光触媒やハイドロキシアパタイト二酸化チタン光触媒 等がある。これらを用いると、光触媒機能で分解されにくい、無機化合物を用いる必要がなくなり、フィルター材料の選択範囲を、さらに、広範囲から選択できるようになる。In recent years, a technique for directly covering the surface of titanium dioxide with apatite particles has been developed. Specific examples include a fluorinated apatite titanium dioxide photocatalyst and a hydroxyapatite titanium dioxide photocatalyst. When these are used, it is not necessary to use an inorganic compound that is difficult to be decomposed by the photocatalytic function, and the selection range of the filter material can be further selected from a wide range.

高効率粒子除去フィルターについては、サブミクロンの粒子を除去する集塵フィルターが望ましい。これらのフィルターとしては、ヘパフィルター(HEPA:hiohefficiency air filter)、またはウルパフィルター(ULPA:ultra low penetration air filter)を用いてることが好適である。For a high efficiency particle removal filter, a dust collection filter that removes submicron particles is desirable. As these filters, it is preferable to use a hepafilter (HEPA) or an ultra low penetration air filter (ULPA).

以下に、図1、図2に示す実施例、及び図3の実施例の殺菌・脱臭フィルターの構成を説明する。まず、光触媒フィルター(結晶化した酸化チタン、無機バインダを担持させたハニカムフィルター〈200セル/inch〉(石原産業(株))6、8は通常用いられる酸化チタンと吸着材料の比率(例えば吸着材7:酸化チタン3)よりも酸化チタンの比率を9程度まで高め、分解速度を速くした。このため、従来持つ吸着力は低下するが、これを補うために酸化チタン90〜80%に対してアパタイトを10〜20%担持し、100℃で乾燥させた。従来より3.5倍以上の吸着力を持つフィルターを作成した。また、紫外線ランプ(ブラックライト)を5、9に設置した。The configuration of the sterilizing / deodorizing filter of the embodiment shown in FIGS. 1 and 2 and the embodiment of FIG. 3 will be described below. First, photocatalytic filters (crystallized titanium oxide, honeycomb filter carrying inorganic binder <200 cells / inch 2 > (Ishihara Sangyo Co., Ltd.) 6, 8 are the ratios of titanium oxide and adsorbent materials that are usually used (for example, adsorption) Material 7: Titanium oxide ratio was increased to about 9 than titanium oxide 3), and the decomposition rate was increased, so that the adsorptive power had decreased, but to compensate for this, 90-80% of titanium oxide Then, 10 to 20% of apatite was supported and dried at 100 ° C. A filter having an adsorption power of 3.5 times or more than that of the conventional filter was prepared, and ultraviolet lamps (black light) were installed at 5 and 9.

これらのフィルターを、図1、図2に示すように、空気清浄機に取付て構成し、評価用ボックス(5メートル立方)に設置した。空気清浄機の運転条件として、風量を3(m/min)に設定し、評価用ボックス内の温度を25度、湿度60%の一般家庭の雰囲気に調整した。As shown in FIGS. 1 and 2, these filters were mounted on an air purifier and installed in an evaluation box (5 meter cubic). As the operating conditions of the air cleaner, the air volume was set to 3 (m 3 / min), and the temperature in the evaluation box was adjusted to an ordinary household atmosphere of 25 degrees and a humidity of 60%.

上記の評価用ボックス内に臭気ガスを注入し、消臭速度をガスセンサを用い測定した。同じ条件で、上記空気清浄機の殺菌・脱臭フィルターから光触媒を含む多孔質吸着材料を担持させたハニカムフィルターに交換、同様に測定を行った。それぞれのフィルター構成における残存脱臭率をプロットした結果が図4である。図4に示すごとくに、本実施例のフィルタ機構による脱臭速度が最も高いことが示された。また、電源を切った状態でも臭気分子の再放出による臭いを感じることがなかった。さらに、電源再投入時にも空気清浄機内の温度上昇によるフィルターからの臭い分子の再放出による臭いを感じることがなかった。Odor gas was injected into the evaluation box and the deodorization rate was measured using a gas sensor. Under the same conditions, the sterilizing / deodorizing filter of the above air cleaner was replaced with a honeycomb filter carrying a porous adsorbing material containing a photocatalyst, and the same measurement was performed. The result of plotting the residual deodorization rate in each filter configuration is shown in FIG. As shown in FIG. 4, it was shown that the deodorizing speed by the filter mechanism of the present embodiment was the highest. In addition, even when the power was turned off, there was no odor due to re-release of odor molecules. Furthermore, when the power was turned on again, there was no odor due to the re-release of odorous molecules from the filter due to the temperature rise in the air cleaner.

次に、図1、図2に示すような、殺菌・脱臭フィルターの細菌、ウィルス捕集効果、及びヘパフィルター表面の細菌、ウィルス付着軽減効果を測定した。Next, as shown in FIG. 1 and FIG. 2, the bacteria and virus collection effect of the sterilizing / deodorizing filter and the bacteria and virus adhesion reducing effect on the surface of the hepa filter were measured.

上記の評価用ボックス内の空気清浄機の空気吸い込み口より、大腸菌、黄色ブドウ球菌をそれぞれ注入し、その後、それぞれのフィルター構成の場合での空気出口から細菌を採取し、温度35度で40〜48時間培養した。
生育したコロニーを計測し、希釈倍数を乗じて菌数を算出した。なお、あらかじめ接種直後の菌数を同様の操作で計測しておく。
[A]アパタイトを担持していないフィルターの生菌注入の生菌数
[B]アパタイトを担持していないフィルターの30分後の生菌数
[C]本発明フィルターの生菌注入の生菌数
[D]本発明フィルターの30分後の生菌数
[A]の生菌数と従来フィルター、及び[C]の生菌数と本発明フィルターの生菌数の差を比較した。同様にヘパフィルターについてもフィルター表面付着菌数の確認を行った。
性能試験の結果は、本実施例によると従来のアパタイトを担持していないフィルターよりも、本発明による殺菌・脱臭フィルターのほうが2〜3倍捕集率が高く、優れていた。また、脱臭寿命(繰り返し耐久性能)も長くなることが分かった。さらに、図2の構成実施例では、ヘパフィルターに付着する、細菌、ウィルスを従来より80%軽減させることができた。
Escherichia coli and Staphylococcus aureus are respectively injected from the air suction port of the air purifier in the evaluation box, and then bacteria are collected from the air outlet in the case of each filter configuration, and the temperature is 35 degrees and 40 to 40 Cultured for 48 hours.
The grown colonies were counted, and the number of bacteria was calculated by multiplying by the dilution factor. In addition, the number of bacteria immediately after inoculation is measured by the same operation in advance.
[A] Viable count of viable bacteria injected into a filter not carrying apatite [B] Viable count after 30 minutes of filter not carrying apatite [C] Viable count of viable bacteria injected from the filter of the present invention [D] The number of viable cells [A] after 30 minutes of the filter of the present invention [A] and the conventional filter, and the difference between the number of viable cells [C] and the number of viable cells of the present filter were compared. Similarly, the number of bacteria attached to the filter surface was also confirmed for the hepa filter.
As a result of the performance test, according to this example, the sterilization / deodorization filter according to the present invention had a higher collection rate by 2 to 3 times and was superior to the conventional filter not supporting apatite. It was also found that the deodorization life (repeated durability) was also increased. Further, in the configuration example of FIG. 2, bacteria and viruses adhering to the hepa filter can be reduced by 80% compared to the conventional case.

発明の効果The invention's effect

本発明によると、従来の吸着物質や集塵フィルターにより集塵、吸着した場合に起きる集塵、吸着した臭気、細菌、ウィルスが脱臭、除菌、不活化処理をされないままで残され、それが室内に再放出されて臭いがしたり、細菌感染する問題、また、空気清浄機の電源が入っていない場合に光触媒が働かないため起きる、未処理のまま残された細菌、ウィルス、臭気分子がフィルターから離脱し、室内に放出されるという問題、電源再投入時の装置内の温度上昇に伴うフィルターからの、臭気分子、細菌、ウィルスの再放出のいずれも生じることが無くなるため、より効果的にかつ安定的に脱臭と除菌、不活化の両方の機能を発揮することが出来る殺菌・脱臭フィルターを備えた空気清浄機や空気殺菌・脱臭装置が実現できる。また、本発明の殺菌・脱臭フィルターは、上記した利点に加えて、フィルター寿命が長いため、煩雑にフィルター交換する必要がないことから、ユーザーに快適な居住環境を提供する事に貢献し得る。According to the present invention, dust collected by a conventional adsorbing substance or dust collecting filter, dust collection that occurs when adsorbed, adsorbed odor, bacteria, and virus are left undeodorized, sterilized, and inactivated. Problems such as odors and bacterial infections that are re-released indoors, and bacteria, viruses, and odor molecules left untreated, caused by the lack of photocatalysis when the air cleaner is turned off, It is more effective because it is released from the filter and released into the room, and no odor molecules, bacteria, or viruses are released again from the filter due to the temperature rise in the device when the power is turned on again. In addition, an air purifier or an air sterilization / deodorization apparatus equipped with a sterilization / deodorization filter that can exhibit both functions of deodorization, sterilization, and inactivation can be realized. In addition to the above-described advantages, the sterilizing / deodorizing filter of the present invention has a long filter life, so that it is not necessary to replace the filter in a complicated manner. Therefore, it can contribute to providing a comfortable living environment for the user.

本発明による殺菌・脱臭フィルターを空気清浄機に適用した一実例形態を説明するための概略構成図である。It is a schematic block diagram for demonstrating the example form which applied the sterilization / deodorizing filter by this invention to the air cleaner. 本発明による殺菌・脱臭フィルターを空気清浄機に適用した他の実例形態を説明するための概略形態図である。It is a schematic form diagram for demonstrating the other example form which applied the sterilization / deodorizing filter by this invention to the air cleaner. 本発明による殺菌・脱臭フィルターを空気殺菌・脱臭機に適用した実施形態を説明するための概略構成図である。It is a schematic block diagram for demonstrating embodiment which applied the sterilization / deodorizing filter by this invention to the air sterilization / deodorizing machine.

符号の説明Explanation of symbols

1…空気吹き出し口
2…プレフィルター
3…高効率粒子除去フィルター(ヘパフィルター)
4…送風機
5…紫外線発光体
6…殺菌・脱臭フィルター
7…空気吹き出し口
8…殺菌・脱臭フィルター
9…紫外線発光体
10…紫外線発光体(波長253.7nm)
1 ... Air outlet 2 ... Pre-filter 3 ... High-efficiency particle removal filter (hepa filter)
4 ... Blower 5 ... Ultraviolet emitter 6 ... Sterilization / deodorization filter 7 ... Air outlet 8 ... Sterilization / deodorization filter 9 ... Ultraviolet emitter 10 ... Ultraviolet emitter (wavelength 253.7nm)

Claims (4)

臭気物質、細菌、ウィルスの分解触媒として働く光励起触媒保持層と臭気物質、細菌、ウィルスを吸着する吸着剤として働くアパタイトを担持した、殺菌・脱臭フィルターに空気を流通させるための手段とを備えて成る空気清浄機。  It has a photoexcitation catalyst holding layer that acts as a decomposition catalyst for odorous substances, bacteria, and viruses, and a means for circulating air through a sterilizing / deodorizing filter that supports apatite that acts as an adsorbent that adsorbs odorous substances, bacteria, and viruses. Consisting of an air purifier. 請求項1記載の殺菌・脱臭フィルターにおいて前記光励起触媒として酸化チタンを用いることを特徴とする殺菌・脱臭フィルター。  The sterilization / deodorization filter according to claim 1, wherein titanium oxide is used as the photoexcitation catalyst. 請求項1又は2記載の殺菌・脱臭フィルターはさらに無機多孔質材料を含み、臭気吸着材料(ゼオライト、活性炭等)とを混合された状態で用いられることを特徴とする殺菌・脱臭フィルター。  The sterilization / deodorization filter according to claim 1 or 2, further comprising an inorganic porous material, wherein the sterilization / deodorization filter is used in a mixed state with an odor adsorbing material (zeolite, activated carbon, etc.). 請求項1及至3のいずれか1記載の殺菌・脱臭フィルターにおいて前記光励起触媒を励起させる光を発生する光源に波長200nm〜360nmを用いることを特徴とする殺菌・脱臭フィルター。  The sterilization / deodorization filter according to any one of claims 1 to 3, wherein a wavelength of 200 nm to 360 nm is used as a light source for generating light that excites the photoexcitation catalyst.
JP2004101258A 2004-03-02 2004-03-02 Bactericidal and deodorizing filter, and air purifier equipped with the same Pending JP2005245998A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010505258A (en) * 2006-09-28 2010-02-18 シーメンス アクチエンゲゼルシヤフト Energy storage module
KR101211278B1 (en) 2005-09-22 2012-12-11 엘지전자 주식회사 Air conditioning apparatus
JP2015171440A (en) * 2014-03-11 2015-10-01 株式会社Nbcメッシュテック Method and apparatus for virus inactivation by irradiation of deep uv light
EP2562481B1 (en) * 2011-08-22 2019-01-02 BSH Hausgeräte GmbH Fume hood device with an air preparation device
CN113027643A (en) * 2021-03-04 2021-06-25 四川百纳科技有限责任公司 Double-section crawler type all-terrain armored vehicle air inlet system
CN113069879A (en) * 2021-04-29 2021-07-06 成渝钒钛科技有限公司 Odor filtering device for toilet pipeline and use method thereof
CN114396721A (en) * 2021-12-08 2022-04-26 山西通德滤材有限公司 Air new trend clarifier inactivation virus filter core
DE102020007515A1 (en) 2020-12-09 2022-06-09 Heinrich Iglseder Room air purifier platform with antiviral and antibacterial high-performance filter system

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101211278B1 (en) 2005-09-22 2012-12-11 엘지전자 주식회사 Air conditioning apparatus
JP2010505258A (en) * 2006-09-28 2010-02-18 シーメンス アクチエンゲゼルシヤフト Energy storage module
US8233266B2 (en) 2006-09-28 2012-07-31 Siemens Aktiengesellschaft Energy storage module
EP2562481B1 (en) * 2011-08-22 2019-01-02 BSH Hausgeräte GmbH Fume hood device with an air preparation device
JP2015171440A (en) * 2014-03-11 2015-10-01 株式会社Nbcメッシュテック Method and apparatus for virus inactivation by irradiation of deep uv light
DE102020007515A1 (en) 2020-12-09 2022-06-09 Heinrich Iglseder Room air purifier platform with antiviral and antibacterial high-performance filter system
CN113027643A (en) * 2021-03-04 2021-06-25 四川百纳科技有限责任公司 Double-section crawler type all-terrain armored vehicle air inlet system
CN113027643B (en) * 2021-03-04 2021-12-17 四川百纳科技有限责任公司 Double-section crawler type all-terrain armored vehicle air inlet system
CN113069879A (en) * 2021-04-29 2021-07-06 成渝钒钛科技有限公司 Odor filtering device for toilet pipeline and use method thereof
CN114396721A (en) * 2021-12-08 2022-04-26 山西通德滤材有限公司 Air new trend clarifier inactivation virus filter core

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