JPH01189322A - Deodorizing device - Google Patents
Deodorizing deviceInfo
- Publication number
- JPH01189322A JPH01189322A JP63010602A JP1060288A JPH01189322A JP H01189322 A JPH01189322 A JP H01189322A JP 63010602 A JP63010602 A JP 63010602A JP 1060288 A JP1060288 A JP 1060288A JP H01189322 A JPH01189322 A JP H01189322A
- Authority
- JP
- Japan
- Prior art keywords
- adsorbent
- photocatalyst
- deodorizing device
- activated carbon
- honeycomb
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000001877 deodorizing effect Effects 0.000 title claims abstract description 41
- 239000003463 adsorbent Substances 0.000 claims abstract description 85
- 239000011941 photocatalyst Substances 0.000 claims abstract description 67
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 56
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 26
- 235000019645 odor Nutrition 0.000 claims description 35
- 238000001179 sorption measurement Methods 0.000 claims description 16
- 230000005284 excitation Effects 0.000 claims description 13
- 238000009423 ventilation Methods 0.000 claims description 10
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 8
- 229910044991 metal oxide Inorganic materials 0.000 claims description 7
- 150000004706 metal oxides Chemical class 0.000 claims description 7
- 239000011148 porous material Substances 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 6
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 4
- 239000011787 zinc oxide Substances 0.000 claims description 4
- 229910021536 Zeolite Inorganic materials 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 3
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 claims description 3
- 229910001930 tungsten oxide Inorganic materials 0.000 claims description 3
- 239000010457 zeolite Substances 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 2
- 229910002027 silica gel Inorganic materials 0.000 claims description 2
- 238000004898 kneading Methods 0.000 abstract description 4
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 abstract description 3
- ZNOKGRXACCSDPY-UHFFFAOYSA-N tungsten(VI) oxide Inorganic materials O=[W](=O)=O ZNOKGRXACCSDPY-UHFFFAOYSA-N 0.000 abstract description 3
- 102100030393 G-patch domain and KOW motifs-containing protein Human genes 0.000 abstract 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 abstract 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 1
- 229910052982 molybdenum disulfide Inorganic materials 0.000 abstract 1
- QMMFVYPAHWMCMS-UHFFFAOYSA-N Dimethyl sulfide Chemical compound CSC QMMFVYPAHWMCMS-UHFFFAOYSA-N 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- 238000000354 decomposition reaction Methods 0.000 description 8
- 238000004332 deodorization Methods 0.000 description 8
- 239000013078 crystal Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000004408 titanium dioxide Substances 0.000 description 4
- 239000010419 fine particle Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 238000010792 warming Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-NJFSPNSNSA-N Carbon-14 Chemical class [14C] OKTJSMMVPCPJKN-NJFSPNSNSA-N 0.000 description 2
- VNWKTOKETHGBQD-AKLPVKDBSA-N carbane Chemical class [15CH4] VNWKTOKETHGBQD-AKLPVKDBSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000005281 excited state Effects 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000006864 oxidative decomposition reaction Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- 238000005411 Van der Waals force Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 230000009291 secondary effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Freezing, Cooling And Drying Of Foods (AREA)
- Treating Waste Gases (AREA)
- Separation Of Gases By Adsorption (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は脱臭装置に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to a deodorizing device.
従来より用いられている脱臭装置は、通風路に活性炭等
の脱臭剤が入ったケースを配置し、臭気成分をこの吸着
剤に吸着させて除去する方式のものが用いられている。BACKGROUND ART Conventionally used deodorizing devices employ a method in which a case containing a deodorizing agent such as activated carbon is disposed in a ventilation passage, and odor components are removed by adsorption to the adsorbent.
この種の脱臭装置としては例えば実開昭４７−２２５６
６号公報にその一例が開示されている。As this type of deodorizing device, for example, Utility Model Application No. 47-2256
An example of this is disclosed in Publication No. 6.
上述したように、従来の脱臭装置は、臭気成分を活性炭
等の吸着剤に吸着させて除去するものであるが、この場
合吸着剤が濃度の高い被吸着物質にさらされると、短時
間で効果が減少し、長期にわたって脱臭効果を良好に保
持することが困難となる嫌いがある。As mentioned above, conventional deodorizing equipment removes odor components by adsorbing them to an adsorbent such as activated carbon, but in this case, if the adsorbent is exposed to a highly concentrated adsorbed substance, it loses its effectiveness in a short period of time. deodorizing effect decreases, making it difficult to maintain a good deodorizing effect over a long period of time.
本発明は、脱臭効果を長期にわたり良好に保持する脱臭
装置を提供することにある。An object of the present invention is to provide a deodorizing device that maintains a good deodorizing effect over a long period of time.
光触媒を付加、または吸着剤に光触媒を練込み、光触媒
励起源より放射する励起光で励起すると、犬
成される。By adding a photocatalyst or kneading the photocatalyst into an adsorbent and exciting it with excitation light emitted from a photocatalyst excitation source, it can be synthesized.
本発明の脱臭装置は、例えば吸着剤の表面に光触媒層を
形成し、この光触媒層を励起させる光源より光を照射し
て光触媒を励起させ、吸着剤に吸着された臭気成分を分
解して脱臭効果を長期間保持させるものである。すなわ
ち脱臭装置内通風路を通過する臭気成分のうち分解速度
の速い成分は励起光により光触媒表面に生じるＯＨラジ
カルの酸化作用により、すみやかに酸化分解される。こ
の場合、分解速度の遅い臭気成分は吸着剤に吸着される
が、吸着されることにより吸着剤表面の臭気成分の濃度
が高くなるので励起光を繰返し照射させることにより効
率よく除去することができる。The deodorizing device of the present invention, for example, forms a photocatalyst layer on the surface of an adsorbent, irradiates the photocatalyst with light from a light source that excites the photocatalyst layer, excites the photocatalyst, decomposes the odor components adsorbed on the adsorbent, and deodorizes. It maintains its effect for a long time. That is, among the odor components passing through the ventilation passage in the deodorizing device, those components having a high decomposition rate are quickly oxidized and decomposed by the oxidizing action of OH radicals generated on the photocatalyst surface by the excitation light. In this case, odor components with a slow decomposition rate are adsorbed by the adsorbent, but as the odor components are adsorbed, the concentration of the odor components on the surface of the adsorbent increases, so they can be efficiently removed by repeated irradiation with excitation light. .
このような動作を行なうことにより吸着剤を常にリフレ
ッシュして脱臭性能を長期間にわたり安定に保つことが
できる。By performing such an operation, the adsorbent can be constantly refreshed and deodorizing performance can be maintained stably over a long period of time.
本発明の一実施例を第１図〜第５図により説明する。１
は吸着材であり、表面積を太き（する目的からハニカム
状に形成し、多数のハニカム状孔２を有している。３は
ハニカム状に形成した吸着材の表面に付加した光触媒で
ある。光触媒３は吸着材１に混練してもよい。４は光触
媒を励起させる励起源である。本実施例においては紫外
線ランプを示している。５は紫外線ランプのソケットで
ある。第２図において、６はハニカム状に形成した吸着
材の周囲に設けた緩衝バンドである。第３ 図は第１図
の部分拡大図であり、ハニカム活性炭を形成する吸着材
の表面に金属酸化物から成る光触媒の粒子を示す。７は
吸着材の母材である活性炭である。７ａ、７ｂ、７ｃは
活性炭が有する細孔であり、数十オングストロームの細
孔である。An embodiment of the present invention will be described with reference to FIGS. 1 to 5. 1
is an adsorbent, which is formed into a honeycomb shape for the purpose of increasing the surface area and has a large number of honeycomb-shaped pores 2. 3 is a photocatalyst added to the surface of the adsorbent formed into a honeycomb shape. The photocatalyst 3 may be kneaded into the adsorbent 1. 4 is an excitation source that excites the photocatalyst. In this embodiment, an ultraviolet lamp is shown. 5 is a socket for the ultraviolet lamp. In FIG. 6 is a buffer band provided around the adsorbent formed into a honeycomb shape. Fig. 3 is a partially enlarged view of Fig. 1, in which a photocatalyst made of metal oxide is placed on the surface of the adsorbent forming the honeycomb activated carbon. The particles are shown. 7 is activated carbon, which is the base material of the adsorbent. 7a, 7b, and 7c are pores possessed by the activated carbon, each having a diameter of several tens of angstroms.
８は光触媒の微粒子であり、活性炭７の表面に多数付加
させる。この微粒子は数百オングストロームの径をもち
、活性炭の細孔径の１０倍と大きく吸着材の細孔をふさ
がないよう充分の大きさをもつよう選択する。次に光触
媒の作用について説明する。Numeral 8 denotes photocatalyst fine particles, which are added to the surface of activated carbon 7 in large numbers. The fine particles have a diameter of several hundred angstroms, and are selected to be ten times larger than the pore diameter of the activated carbon, and are large enough not to block the pores of the adsorbent. Next, the action of the photocatalyst will be explained.
光触媒となる金属酸化物の粒子は半導体であり、第４図
のＧに示すようなバンドギャップを有している。Ｅは価
電子帯であり、Ｄは伝導帯を示している。この半導体に
紫外線ランプ４から発生する紫外線（ＵＶ：波長＝２５
４ｎｍ）を照射させると価電子帯Ｅにある電子ｅ−が紫
外線（Ｕｖ）のエネルギーを得て伝導帯りに飛び上り、
電子」−が飛び出た正孔ｈ０が価電子帯にできる。この
状態が光触媒の励起状態である。この励起状態における
半導体即ち光触媒の表面からＯＨラジカルが発生する。The metal oxide particles serving as the photocatalyst are semiconductors and have a band gap as shown in G in FIG. E is the valence band and D is the conduction band. Ultraviolet light (UV: wavelength = 25
When irradiated with 4nm), electrons e- in the valence band E gain energy from ultraviolet (Uv) and jump to the conduction band.
A hole h0 from which an electron has jumped out is created in the valence band. This state is the excited state of the photocatalyst. OH radicals are generated from the surface of the semiconductor, ie, the photocatalyst, in this excited state.
正孔（ｈ゛）土表面水酸基（ＯＨ−） −ＯＨラジカル
このＯＨラジカルは酸化力が非常に強い。吸着材にファ
ンデルワールスの力により吸着されている臭気成分で特
に悪臭成分として知られているメチルメルカプタン（Ｃ
Ｈ，ＳＨ）の酸化分解を例にとると、次式の化学反応に
よって酸化分解が起こり悪臭がなくなる。Hole (h゛) Soil surface hydroxyl group (OH-) -OH radical This OH radical has a very strong oxidizing power. Methyl mercaptan (C
Taking the oxidative decomposition of H, SH) as an example, oxidative decomposition occurs through the following chemical reaction and the bad odor disappears.
０Ｈａ８Ｈ＋ＯＨラジカル → ０ＨＩＳ＋ｆ（１０他
の悪臭成分もＯＨラジカルの酸化力によって酸化分解し
吸着材１に集めた臭気を脱臭することができる。光触媒
としてアナターゼ結晶の酸化チタンを用い、吸着材に活
性炭を用いた時の実験結果を第５図に示す。内容積２５
０ｔの容器にジメチルサルファイドを５ｐｐｍ入れ脱臭
装置を運転したときの臭気ガス残存率、即ちジメチルサ
ルファイドの残存率を求めた結果が第５図である。横軸
に時間を示し、縦軸に臭気ガスの残存率を示す。0Ha8H+OH radical → 0HIS+f (10Other malodorous components are also oxidized and decomposed by the oxidizing power of OH radicals, and the odor collected in the adsorbent 1 can be deodorized.Anatase crystal titanium oxide is used as a photocatalyst, and activated carbon is used as an adsorbent. Figure 5 shows the experimental results when the internal volume was 25.
FIG. 5 shows the results of determining the residual rate of odor gas, that is, the residual rate of dimethyl sulfide when the deodorizing device was operated with 5 ppm of dimethyl sulfide placed in a 0 ton container. The horizontal axis shows time, and the vertical axis shows the residual rate of odor gas.
人はジメチルサルファイドの自然減衰である。Ｂは吸着
材を用いず金属板にアナターゼ結晶の酸化チタンを付加
し紫外線ランプを点灯したときの減衰特性を示している
。Ｃは吸着材としてノ１ニカム状の活性炭を用い、その
表面にアナターゼ結晶の酸化メタンを付加させたときの
減衰特性を示している。Ｂの特性から光触媒のみ使用し
ても臭気濃度は低下し、脱臭が行なわれていることが判
る。Man is a natural decay of dimethyl sulfide. B shows the attenuation characteristics when anatase crystal titanium oxide is added to a metal plate without using an adsorbent and an ultraviolet lamp is turned on. C shows the attenuation characteristics when oxidized methane of anatase crystals is added to the surface of activated carbon in the form of a unicorn as an adsorbent. From the characteristics of B, it can be seen that even if only a photocatalyst is used, the odor concentration is reduced and deodorization is performed.
吸着材を使用すると吸着材に臭気を集めて分解すること
ができるので脱臭のスピードが速くなることが実証でき
た。脱臭は臭気を流しながら紫外線ランプを点灯させ連
続的に脱臭するが、吸着材のファンデルワールス力によ
る吸着が速く行なわれることから、吸着材に臭気成分を
集めてから紫外線ランプを点灯させる間欠照射によって
も脱臭できる。ハニカム状に吸着材を形成すると外周部
はもろ（なるので外周に緩衝バンドを設けることにより
外周部の割れ等を防止でき、実用範囲が広（なる。吸着
材としてはハニカム活性炭を用いる。We were able to demonstrate that the use of adsorbents can speed up deodorization by collecting and decomposing odors in the adsorbent. Deodorization is carried out continuously by lighting an ultraviolet lamp while flushing odor, but since adsorption occurs quickly due to the van der Waals force of the adsorbent, intermittent irradiation is performed by collecting odor components in the adsorbent and then turning on an ultraviolet lamp. It can also be deodorized by When an adsorbent is formed in a honeycomb shape, the outer periphery becomes fragile, so by providing a buffer band around the outer periphery, cracks in the outer periphery can be prevented and the range of practical use is widened. Honeycomb activated carbon is used as the adsorbent.
ハニカム活性炭は焼成温度が１，０００℃と高温である
ので有機物が含まれないから紫外線照射に対しても充分
実用できるものである。第６図にハニカム活性炭の製造
工程を示す。また第７図にアナターゼ結晶を有するチタ
ニアゾルにハニカム活性炭を浸漬させハニカム活性炭表
面にアナターゼ結晶のチタニア粒子、即ち光触媒を付加
させる工程を示した。吸着材はハニカム活性炭にかぎら
ず吸着材であれば、ゼオライト、多孔質のセラミック、
シリカゲルを用いても同様の脱臭性能が得られる。Since the firing temperature of honeycomb activated carbon is as high as 1,000° C., it does not contain organic substances, so it can be used effectively even when exposed to ultraviolet rays. FIG. 6 shows the manufacturing process of honeycomb activated carbon. Further, FIG. 7 shows a process of immersing honeycomb activated carbon in a titania sol having anatase crystals and adding titania particles of anatase crystals, that is, a photocatalyst, to the surface of the honeycomb activated carbon. The adsorbent is not limited to honeycomb activated carbon, but also zeolite, porous ceramic,
Similar deodorizing performance can be obtained using silica gel.
光触媒もアナターゼ結晶の酸化チタンにかぎらず酸化チ
タン、酸化タングステン、酸化亜鉛などの金属酸化物の
単体およびその複合体を用いても同様の脱臭性能を得る
ことができる。光触媒を励起させる励起源は次の表に宗
すように光触媒固有のバンドギャップ以上のエネルギー
を与えることが必要である。The photocatalyst is not limited to titanium oxide of anatase crystals, but also single metal oxides such as titanium oxide, tungsten oxide, and zinc oxide, as well as composites thereof, can be used to obtain similar deodorizing performance. The excitation source that excites the photocatalyst must provide energy greater than the band gap inherent to the photocatalyst, as shown in the table below.
吸着材の形状はできるだけ表面積を大きくとることが脱
臭性能の改善となることから、ハニカム状の他にスポン
ジ状、網状、同心円状、同心角状にでき実装する機謹に
合わせて選定できる。また吸着材の吸着性能を低下させ
ないため吸着材表面に付加させる光触媒の粒径は吸着材
の吸着細孔より充分大きくとることが必要である。本発
明による脱臭装置を冷蔵庫に実装した具体例を次に説明
する。Since the deodorizing performance is improved by increasing the surface area as much as possible, the shape of the adsorbent material can be selected from honeycomb shapes, sponge shapes, net shapes, concentric circles, and concentric square shapes depending on the mounting mechanism. Furthermore, in order not to reduce the adsorption performance of the adsorbent, the particle size of the photocatalyst added to the surface of the adsorbent must be sufficiently larger than the adsorption pores of the adsorbent. A specific example in which the deodorizing device according to the present invention is installed in a refrigerator will be described next.
励起させる光源の波長＝上口１
Ｖ
冷蔵庫への実施例を第８図により説明する。第８図は本
発明の脱臭装置を冷蔵庫に設置した場合の一実施例を示
す縦断面図である。Wavelength of excitation light source=upper opening 1 V An example of application to a refrigerator will be described with reference to FIG. FIG. 8 is a longitudinal sectional view showing an embodiment of the deodorizing device of the present invention installed in a refrigerator.
第８図において、９は冷蔵庫、１０は冷凍室、１１は冷
蔵室、１２は冷気通路である。１３は本発明の脱臭装置
で、１４は繊維状活性炭、１５はハニカム状活性炭、１
６はそれぞれの表面に形成した光触媒層、１７は紫外線
ランプ、１８．１９は遮光板を示す。２，０は冷気を発
生する冷却器、２１は冷気送風用ファン、２２は冷凍室
２、冷蔵室１１を区画する中仕切である。In FIG. 8, 9 is a refrigerator, 10 is a freezer compartment, 11 is a refrigerator compartment, and 12 is a cold air passage. 13 is a deodorizing device of the present invention, 14 is fibrous activated carbon, 15 is honeycomb activated carbon, 1
6 is a photocatalyst layer formed on each surface, 17 is an ultraviolet lamp, and 18 and 19 are light shielding plates. 2 and 0 are coolers that generate cold air; 21 is a fan for blowing cold air; and 22 is a partition that partitions the freezer compartment 2 and the refrigerator compartment 11.
この実施例を示す冷蔵庫では、冷却器２０より生じた冷
気は送風ファン２１の動作により、図の矢印に示すよう
に冷凍室１０および冷蔵室１１より冷気通路１２を通っ
そ循環する。In the refrigerator according to this embodiment, cold air generated by a cooler 20 is circulated from a freezer compartment 10 and a refrigerator compartment 11 through a cold air passage 12 by the operation of a blower fan 21, as shown by the arrows in the figure.
本発明の脱臭装置１３は冷気通路１２の中にセットされ
、光触媒励起用光源として紫外線ランプ１７を中央にし
てその周辺部に吸着剤としてハニカム状活性炭１５、繊
維状活性炭１４が配置され、それぞれの表面に光触媒層
１６が形成しである。The deodorizing device 13 of the present invention is set in a cold air passage 12, with an ultraviolet lamp 17 in the center as a photocatalyst excitation light source, and honeycomb-shaped activated carbon 15 and fibrous activated carbon 14 as adsorbents are arranged around the ultraviolet lamp 17 as a photocatalyst excitation light source. A photocatalyst layer 16 is formed on the surface.
光触媒１６には例えばゾル状に形成されたアナターゼ型
二酸化チタンに上記の各活性炭１４および１５を浸漬し
、ついで乾燥させた微粉状のアナターゼ型二酸化チタン
が用いられている。The photocatalyst 16 uses, for example, finely powdered anatase-type titanium dioxide obtained by soaking each of the activated carbons 14 and 15 in anatase-type titanium dioxide formed in the form of a sol, and then drying the resulting activated carbons 14 and 15.
紫外線ランプ１７を点灯せず、通風のみを行なった場合
は各活性炭１４．１５の吸着により脱臭を行なうことに
なる。紫外線ランプエフを点灯すると光触媒層１６が励
起状態となり、各活性炭の吸着した臭気成分を分解する
と同時に通風していれば、流入空気中の臭気も分解する
。When the ultraviolet lamp 17 is not turned on and only ventilation is performed, deodorization is performed by adsorption of each activated carbon 14 and 15. When the ultraviolet lamp F is turned on, the photocatalyst layer 16 becomes excited and decomposes the odor components adsorbed by each activated carbon, and at the same time, if ventilation is provided, the odor in the incoming air is also decomposed.
光触媒は光エネルギーを化学的エネルギーに変換する物
質であり、バンドギャップ（二酸化チタンの場合３ｅＶ
、光の波長として約４１０ 、 ｍ）以上のエネルギー
を与えると価電子帯にある電子が伝導帯に飛揚して二極
分化した状態となり、伝導体の電子や価電子帯に生じた
正孔が化学的反応を誘引することになる。例えば光触媒
表面に存在する水酸基ＯＨ−が上記の正孔によりラジカ
ルの状態となり、このＯＨラジカルが活性種となり臭気
成分を酸化分解することになる。この場合、臭気成分の
うち分解されやすいものは各活性炭１４．１５に吸着さ
れる前に分解し、分解速度の遅い臭気成分は各活性炭１
４．１５に吸着して濃縮した後、表面の光触媒層１６に
より表面から除々に分解する。A photocatalyst is a substance that converts light energy into chemical energy, and has a band gap (3 eV in the case of titanium dioxide).
When energy of more than 410 m) is applied to the wavelength of light, the electrons in the valence band jump to the conduction band and become polarized, and the electrons in the conductor and the holes generated in the valence band become polarized. This will induce a chemical reaction. For example, the hydroxyl group OH- present on the surface of the photocatalyst becomes a radical due to the above holes, and this OH radical becomes an active species to oxidize and decompose the odor component. In this case, odor components that are easily decomposed are decomposed before being adsorbed by each activated carbon 14.15, and odor components that have a slow decomposition rate are decomposed by each activated carbon 14.15.
4.15 and is concentrated, it is gradually decomposed from the surface by the photocatalyst layer 16 on the surface.
紫外線の照射は連続照射でも、あるいは間欠照射でも何
れを用いてもよい。光触媒の分解量と紫外線の量にはほ
ぼ比例関係があり、紫外線強度を適切に選定することに
より、例えば１日に１〜２時間照射でもあるいは冷蔵庫
の除霜運転時に同期してもよい。The ultraviolet rays may be irradiated continuously or intermittently. There is a nearly proportional relationship between the amount of decomposition of the photocatalyst and the amount of ultraviolet rays, and by appropriately selecting the intensity of ultraviolet rays, the irradiation may be performed for 1 to 2 hours a day or synchronized with the defrosting operation of the refrigerator.
なお光触媒層の材料としてはアナターゼ型二酸化チタン
（Ｔ ｔ ｏ、 ）の他に酸化亜鉛（ｚ ｎ ｏ）、三
酸化タングステン（ＷＯ，） 等を用いて好結果を得
ることができる。吸着剤としては活性炭の他に、ゼオラ
イト、多孔質セラミック等も使用できる。In addition to anatase-type titanium dioxide (T t o, ), zinc oxide (z no ), tungsten trioxide (WO, ), etc. can be used as the material for the photocatalyst layer to obtain good results. In addition to activated carbon, zeolite, porous ceramics, etc. can also be used as adsorbents.
本脱臭装置の運転動作を詳細に説明すると、脱臭器に送
風するファンの運転、および吸着材に添加した光触媒を
励起させる光源の運転状況は第９図に示すとおりである
。第９図の横軸は経過時間を示している。縦軸は各運転
動作項目を示す。スタート時をａとすればファン（１）
の運転時間、即ち８〜６間では第９図に示すように吸着
（３）作用を行ない、ｂｗｃ間のファン（１）を停止さ
せている時間は光源（２）を点灯させて吸着材に添加さ
せた光触媒の作用により吸着した臭気成分を分解（４）
させる。ｃ−ｄ間で再びファン（１）を運転させると同
時に光源（２）を消灯させるとｃｗｄ間で再び吸着（３
）が行なわれる。前記吸着（３）と分解（４）を繰り返
すことにより脱臭装置としての作用を成す。なお第９図
に図示していないがファンの運転と同期させ、ファン運
転中は光源も同時に点灯させるようにしても吸着と分解
は同時に行なえるので同様の作用をなす、例えば脱臭装
置運転ボタンを押すとファンと光源は同時に運転でき任
意の時間後脱臭装置を停止させるとファンと光源は同時
に停止と消灯にさせるようにしてもよい。又、光源を間
欠的に点灯させる方マ
法として夕べより一定時間毎に点灯、消灯を繰り返し行
なう方法や１日に１回一定時間点灯させるとか、１日２
回点灯点灯るよう点灯時間を選択できる。さらに本発明
による脱臭装置を実装させる機器特有の運転モードと同
期させて光源の点灯即ち臭気の分解を行なうよう選択で
きる。−例を記すと、冷蔵庫に本脱臭装置を実装し、冷
蔵庫内の冷却器に付く霜を定期的に取る除霜運転時に光
源を点灯させるようにすることもできる。なお光源
袖囃ｐ点灯させるとき光源を吸着材に近づけて設定する
と光源点灯時に吸着材を暖ためるので、吸着材に吸収し
ている臭気成分を追い出す作用があり、吸着材のクリー
ニング効果を高めることができる。実験によれば２ワツ
トの紫外線発生ランプを点灯させ、ファンを停止させる
と吸着材の温度は周辺の温度より１０℃程高（なるので
、ファンを停止させて光源を点灯させると、吸着材を暖
ためる効果があり、熱により臭気成分の追い出しができ
る。光源の出力を高めると、前記吸着材の温度上昇を高
めるのでより効果的である。光源の近くに設ける光触媒
付□吸着材の構造はハニカム状の他にも吸着材の表面を
太きくれる構造としてスポンジ状、あるいは第１０図に
示すよう繊維状活性炭などを用いた金網状、あるいは第
１１図に示すような同心円状、第１２図に示すような通
風孔を抜いた円筒又は平角の厚い板。第１３図に示すよ
うな同心角状の光触媒付吸着材を用いることができる。To explain the operation of this deodorizing device in detail, the operation of the fan that blows air to the deodorizer and the operating status of the light source that excites the photocatalyst added to the adsorbent are as shown in FIG. 9. The horizontal axis in FIG. 9 indicates elapsed time. The vertical axis shows each driving action item. If the start time is a, the fan (1)
During the operation time of 8 to 6, adsorption (3) is performed as shown in Fig. 9, and during the time when the fan (1) between bwc is stopped, the light source (2) is turned on to absorb the adsorbent. Decomposes the adsorbed odor components by the action of the added photocatalyst (4)
let When the fan (1) is operated again between c and d and the light source (2) is turned off at the same time, adsorption (3) occurs again between cwd.
) is carried out. By repeating the adsorption (3) and decomposition (4), it functions as a deodorizing device. Although not shown in Fig. 9, adsorption and decomposition can be performed simultaneously by synchronizing the operation of the fan and turning on the light source at the same time while the fan is operating. When pressed, the fan and light source can be operated at the same time, and when the deodorizing device is stopped after an arbitrary period of time, the fan and light source may be stopped and turned off at the same time. In addition, there are ways to turn on the light source intermittently, such as turning it on and off repeatedly at regular intervals starting in the evening, turning it on once a day for a certain period of time, or turning it on twice a day.
You can select the lighting time so that it turns on twice. Further, it is possible to select to turn on the light source, that is, to decompose the odor, in synchronization with the operation mode specific to the device in which the deodorizing device according to the present invention is installed. - To give an example, the present deodorizing device can be installed in a refrigerator, and the light source can be turned on during defrosting operation to periodically remove frost from the cooler inside the refrigerator. If the light source is set close to the adsorbent when the light source is turned on, the adsorbent will be warmed when the light source is turned on, which will have the effect of expelling odor components absorbed by the adsorbent, increasing the cleaning effect of the adsorbent. Can be done. According to experiments, when a 2-watt ultraviolet lamp is turned on and the fan is stopped, the temperature of the adsorbent is about 10°C higher than the surrounding temperature (so, when the fan is stopped and the light source is turned on, the adsorbent is heated). It has a warming effect, and the heat can drive out odor components.Increasing the output of the light source increases the temperature rise of the adsorbent, which is more effective.The structure of the adsorbent with a photocatalyst installed near the light source is In addition to the honeycomb shape, structures that thicken the surface of the adsorbent include a sponge shape, a wire mesh shape using fibrous activated carbon as shown in Figure 10, a concentric circle shape as shown in Figure 11, and a concentric shape as shown in Figure 12. A cylindrical or rectangular thick plate with ventilation holes as shown in Fig. 13.A photocatalyst-attached adsorbent with concentric squares as shown in Fig. 13 can be used.
第１０図〜第１３図における２２はいずれも複数の通風
孔を示し、２３はいずれも光触媒付吸着材を示す。脱臭
装置の実装にあたり構造はハニカム状、金網状、同心角
状など前記構造体のうち単一の構造体あるいは複数の構
造体を選択して実装することができる。In FIGS. 10 to 13, 22 indicates a plurality of ventilation holes, and 23 indicates an adsorbent with a photocatalyst. When mounting the deodorizing device, a single structure or a plurality of structures can be selected from among the structures described above, such as a honeycomb shape, a wire mesh shape, and a concentric square shape.
以上、記したように光触媒を付加させた吸着材を光源な
どの光触媒励起源で適時光触媒を励起させることにより
、吸着材に吸収された臭気を効率よく酸化分解させるこ
とができ、吸着材を常にクリーニングしながら使用する
ことができる。従って脱臭効果を長時間にわたり良好に
保持させることができる。As mentioned above, by exciting the photocatalyst at the appropriate time with a photocatalyst excitation source such as a light source, the odor absorbed by the adsorbent can be efficiently oxidized and decomposed, and the adsorbent can be constantly Can be used while cleaning. Therefore, the deodorizing effect can be maintained well for a long time.
４キ１升功墳−≠ナー
面に光触媒を付加するか、又は吸着材に光触媒を練込ん
で、その近（に前記光触媒を励起させる励起源を設けた
ことにより吸着材の吸着スピードを有効活用し脱臭スピ
ードを速めるとともに、吸着材に吸着された臭気成分を
連続あるいは断続的に酸化分解させることができ、吸着
材の吸着性を継続させる効果があり、メンテナンスフリ
ーの脱臭装置を提供できる。吸着材に酸化チタン、酸化
タングステン、酸化亜鉛などの金属酸化物の単体または
その複合物を混練したことにより金属酸化物の光触媒作
用により太陽光あるいは可視光によっても吸着材に吸着
した成分を分解させることかできる。従って脱臭は吸着
材の吸着作用で行ない、定期的に前に金属酸化物を有す
る吸着材を太陽光にさらすか、可視光にさらすことによ
り吸着材をリフレッシュさせることができ、これまで行
なわれなかった吸着材の繰返し使用ができる効果が大で
ある。また、吸着材をハニカム構造にしたことにより吸
着材の表面積が大きくとれ、臭気成分をより速く吸着さ
せることができるから脱臭スピードが速くなる効果があ
る。また吸着材の吸着細孔より充分大きい粒径をもつ光
触媒を吸着材表面に付加させることにより、吸着材の吸
着性能をさまたげずに脱臭および臭気の分解ができる。4-ki-1-sho gong tomb - ≠ By adding a photocatalyst to the inner surface or kneading the photocatalyst into the adsorbent and providing an excitation source near it to excite the photocatalyst, the adsorption speed of the adsorbent can be increased. In addition to increasing the speed of deodorization, the odor components adsorbed on the adsorbent can be continuously or intermittently oxidized and decomposed, which has the effect of continuing the adsorption properties of the adsorbent, and it is possible to provide a maintenance-free deodorizing device. By kneading single or composite metal oxides such as titanium oxide, tungsten oxide, and zinc oxide into the adsorbent, the components adsorbed on the adsorbent are decomposed by sunlight or visible light due to the photocatalytic action of the metal oxide. Therefore, deodorization is carried out by the adsorption action of the adsorbent, and the adsorbent can be periodically refreshed by exposing the adsorbent with metal oxides to sunlight or visible light, and this This has the great effect of allowing the adsorbent to be used repeatedly, which was previously not possible.In addition, the honeycomb structure of the adsorbent increases the surface area of the adsorbent, allowing it to adsorb odor components more quickly, resulting in faster deodorization. In addition, by adding a photocatalyst with a particle size sufficiently larger than the adsorption pores of the adsorbent to the surface of the adsorbent, deodorization and decomposition of odors can be performed without interfering with the adsorption performance of the adsorbent.
これはあたかも砂の上に大粒の砂利をひき、上から水を
かけると水は砂に吸着される現象に例えることができ、
このときの水が臭気成分であると考えれば容易に吸着現
象を説明できる。吸着材の再生は砂の上の砂利を緩ため
ると水分は砂利の熱で蒸気となり蒸発する。このときの
蒸気は吸着材から出て（る臭気成分が酸化分解したもの
と考えられ、売気成分を集めておき効率よく脱臭できか
つ吸着材の再生は吸着材表面に付加、あるいは吸着材に
練込んだ光触媒の作用で行なうので再生効果が大である
。光触媒を励起させる光源を吸着材に接して設置するこ
とにより光源の熱で吸着材を暖ためる派生効果があり、
吸着材を暖ためると吸着した臭気成分を吸着材から出し
易くできるので再生スピードを速める効果を有する。This phenomenon can be compared to the phenomenon in which when large grains of gravel are placed on top of sand and water is poured over it, the water is absorbed by the sand.
The adsorption phenomenon can be easily explained if water at this time is considered to be an odor component. To regenerate the adsorbent, the gravel on top of the sand is loosened, and the moisture is turned into steam by the heat of the gravel and evaporated. The steam at this time is thought to be the result of oxidation and decomposition of odor components released from the adsorbent, and the odor components can be collected and deodorized efficiently. The regeneration effect is great because it is carried out by the action of the photocatalyst that has been kneaded in. By placing the light source that excites the photocatalyst in contact with the adsorbent, there is a secondary effect of warming the adsorbent with the heat of the light source.
Warming the adsorbent makes it easier to release the adsorbed odor components from the adsorbent, which has the effect of increasing the regeneration speed.
第１図は本発明の脱臭装置の一実施例を示す斜視図、第
２図は他の実施例を示す斜視図、第３図は第１図の部分
拡大断面図、第４図は光触媒の作用の原理を説明する図
、第５図は光触媒の特性図、第６図、第７図は製造工程
のフロー図、第８図は本発明の脱臭袋ａを組込んだ冷蔵
庫の縦断面図、第９図は本発明による脱臭装置の動作を
説明する図、第１０図〜第１３図は本発明の他の実施例
を示す活性炭の斜視図である。
１・・・吸着材、２・・・ハニカム孔、３・・・光触媒
、４・・・光触媒励起源、５・・・ソケット、６・・・
緩衝バンド、７・・・活性炭、８・・・光触媒の微粒子
、９・・・冷蔵庫、１０・・・冷凍室、１１・・・冷蔵
室、１２・・・冷気通路、１３・・・脱臭装置、１４・
・・ハニカム状活性炭、１５・・・繊維状活性炭、１６
・・・光触媒層、１７・・・紫外線ランプ、１８．１９
・・・遮光板、２０・・・冷却器、２１・・・送風ファ
ン、２２・・・通風孔、２３・・・光触媒付吸着材。
（゛Fig. 1 is a perspective view showing one embodiment of the deodorizing device of the present invention, Fig. 2 is a perspective view showing another embodiment, Fig. 3 is a partially enlarged sectional view of Fig. 1, and Fig. 4 is a perspective view of a photocatalyst. Figure 5 is a diagram explaining the principle of action, Figure 5 is a characteristic diagram of the photocatalyst, Figures 6 and 7 are flow diagrams of the manufacturing process, and Figure 8 is a longitudinal sectional view of a refrigerator incorporating the deodorizing bag a of the present invention. , FIG. 9 is a diagram for explaining the operation of the deodorizing device according to the present invention, and FIGS. 10 to 13 are perspective views of activated carbon showing other embodiments of the present invention. DESCRIPTION OF SYMBOLS 1... Adsorbent, 2... Honeycomb hole, 3... Photocatalyst, 4... Photocatalyst excitation source, 5... Socket, 6...
Buffer band, 7... Activated carbon, 8... Photocatalyst fine particles, 9... Refrigerator, 10... Freezer compartment, 11... Refrigerator compartment, 12... Cold air passage, 13... Deodorizing device , 14・
...Honeycomb activated carbon, 15...Fibrous activated carbon, 16
... Photocatalyst layer, 17 ... Ultraviolet lamp, 18.19
... light shielding plate, 20 ... cooler, 21 ... ventilation fan, 22 ... ventilation hole, 23 ... adsorbent with photocatalyst. (゛
Claims (1)
、前記臭気成分を吸着する吸着材の表面に光触媒を付加
した、または吸着材に光触媒を練込んだ部材と、前記光
触媒を励起させる励起源とを設けたことを特徴とする脱
臭装置。 ２、吸着材をハニカム状に形成し、ハニカム孔に通風し
ながら光触媒を励起させる特許請求の範囲第１項に記載
の脱臭装置。 ３、吸着材をハニカム状に形成し、ハニカム孔に通風し
ながら臭気成分を吸着して集めておき間欠的に光触媒を
励起させる特許請求の範囲第１項記載の脱臭装置。 ４、吸着材が活性炭、ゼオライト、多孔質のセラミック
、シリカゲルの単体またはその複合体から成る特許請求
の範囲第１項記載の脱臭装置。 ５、光触媒は酸化チタン、酸化タングステン、酸化亜鉛
などの金属酸化物の単体またはその複合体から成る特許
請求の範囲第１項記載の脱臭装置。 ６、吸着材の吸着細孔より充分大きい粒径をもつ光触媒
を吸着材表面に付加させた特許請求の範囲第１項記載の
脱臭装置。[Scope of Claims] 1. In a deodorizing device that removes odors by installing an adsorbent, a member in which a photocatalyst is added to the surface of the adsorbent that adsorbs the odor component, or a photocatalyst is kneaded into the adsorbent; A deodorizing device comprising: an excitation source that excites the photocatalyst. 2. The deodorizing device according to claim 1, in which the adsorbent is formed into a honeycomb shape and the photocatalyst is excited while ventilation is passed through the honeycomb holes. 3. The deodorizing device according to claim 1, wherein the adsorbent is formed into a honeycomb shape, and the odor components are adsorbed and collected while ventilation is passed through the honeycomb holes, and the photocatalyst is intermittently excited. 4. The deodorizing device according to claim 1, wherein the adsorbent is made of activated carbon, zeolite, porous ceramic, or silica gel, or a composite thereof. 5. The deodorizing device according to claim 1, wherein the photocatalyst is made of a single metal oxide such as titanium oxide, tungsten oxide, or zinc oxide or a composite thereof. 6. The deodorizing device according to claim 1, wherein a photocatalyst having a particle size sufficiently larger than the adsorption pores of the adsorbent is added to the surface of the adsorbent.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63010602A JP2574840B2 (en) | 1988-01-22 | 1988-01-22 | Deodorizing device |
| EP89100265A EP0325133B1 (en) | 1988-01-22 | 1989-01-09 | Apparatus for removing unpleasant odours |
| DE8989100265T DE68904311T2 (en) | 1988-01-22 | 1989-01-09 | DEVICE FOR REMOVING UNPLEASANT ODORS. |
| ES198989100265T ES2037881T3 (en) | 1988-01-22 | 1989-01-09 | DEVICE TO ELIMINATE UNPLEASANT ODOR. |
| EP19910120358 EP0476724A3 (en) | 1988-01-22 | 1989-01-09 | Apparatus for removing stink |
| US07/295,754 US4954465A (en) | 1988-01-22 | 1989-01-11 | Apparatus for removing stink |
| KR1019890000436A KR910002360B1 (en) | 1988-01-22 | 1989-01-17 | Deodorizing apparatus |
| CN89100966A CN1018616B (en) | 1988-01-22 | 1989-01-21 | Deodorization utensil |
| US07/461,928 US4955208A (en) | 1988-01-22 | 1990-01-08 | Refrigerating apparatus having a stink removing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63010602A JP2574840B2 (en) | 1988-01-22 | 1988-01-22 | Deodorizing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01189322A true JPH01189322A (en) | 1989-07-28 |
| JP2574840B2 JP2574840B2 (en) | 1997-01-22 |
Family
ID=11754794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63010602A Expired - Lifetime JP2574840B2 (en) | 1988-01-22 | 1988-01-22 | Deodorizing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2574840B2 (en) |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0394814A (en) * | 1989-09-04 | 1991-04-19 | Matsushita Electric Ind Co Ltd | Deodorizing method with photocatalyst |
| JPH04117644U (en) * | 1991-03-29 | 1992-10-21 | アイシン精機株式会社 | Deodorizing device |
| JPH05180555A (en) * | 1991-06-13 | 1993-07-23 | Samsung Electronics Co Ltd | Noxious-gas removing device for refrigerator vegetable room |
| EP0630679A1 (en) * | 1992-11-10 | 1994-12-28 | Toto Ltd. | Air treating method using photocatalyst under interior illumination |
| US5616532A (en) * | 1990-12-14 | 1997-04-01 | E. Heller & Company | Photocatalyst-binder compositions |
| JPH09190712A (en) * | 1995-11-10 | 1997-07-22 | Daiko Denki Kk | Lighting system with deodorizing function |
| US5790934A (en) * | 1996-10-25 | 1998-08-04 | E. Heller & Company | Apparatus for photocatalytic fluid purification |
| US5849200A (en) * | 1993-10-26 | 1998-12-15 | E. Heller & Company | Photocatalyst-binder compositions |
| JPH11128630A (en) * | 1997-10-23 | 1999-05-18 | Nitto Denko Corp | Solar irradiation system air cleaning element and cleaning of air |
| US5939194A (en) * | 1996-12-09 | 1999-08-17 | Toto Ltd. | Photocatalytically hydrophilifying and hydrophobifying material |
| JPH11276906A (en) * | 1998-03-30 | 1999-10-12 | Nitto Denko Corp | Air permeable photocatalytic sheet and its utilization |
| US6013372A (en) * | 1995-03-20 | 2000-01-11 | Toto, Ltd. | Method for photocatalytically rendering a surface of a substrate superhydrophilic, a substrate with superhydrophilic photocatalytic surface, and method of making thereof |
| JP2000135418A (en) * | 1998-08-26 | 2000-05-16 | Kg Pack Kk | Gas treating element and gas treating device |
| US6090489A (en) * | 1995-12-22 | 2000-07-18 | Toto, Ltd. | Method for photocatalytically hydrophilifying surface and composite material with photocatalytically hydrophilifiable surface |
| JP2000315420A (en) * | 1999-04-30 | 2000-11-14 | Shimadzu Corp | Lighting system with air purifying function |
| JP2005052785A (en) * | 2003-08-07 | 2005-03-03 | Nippon Kasei Kk | Deodorant for treating odor and deodorization apparatus consisting of deodorant for treating odor |
| JP2005322506A (en) * | 2004-05-10 | 2005-11-17 | Matsushita Electric Ind Co Ltd | Fuel cell power generating device |
| JP4702724B2 (en) * | 1998-10-30 | 2011-06-15 | ビーエーエスエフ ソシエタス・ヨーロピア | Molded member |
| DE102012000206A1 (en) * | 2011-10-11 | 2013-04-11 | IBL Umwelt- und Biotechnik GmbH | Process for fluid purification, preferably of organic compounds |
| KR20150039812A (en) | 2012-11-22 | 2015-04-13 | 후지코 가부시키가이샤 | Air purifying device |
| WO2021240774A1 (en) * | 2020-05-29 | 2021-12-02 | 大陽工業株式会社 | Air cleaning apparatus |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11207149A (en) * | 1998-01-23 | 1999-08-03 | Akio Komatsu | Metal carrying photocatalyst type air purifier |
| JP3521748B2 (en) | 1998-07-23 | 2004-04-19 | トヨタ自動車株式会社 | Air purification filter and air purifier |
| KR102495976B1 (en) * | 2022-11-22 | 2023-02-07 | 주식회사 한새 | Corrugated deodorizing filter having a multi layer structure and manufacturing method thereof |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5474271A (en) * | 1977-11-25 | 1979-06-14 | Takeda Chem Ind Ltd | Odor removal |
| JPS57177328A (en) * | 1981-04-24 | 1982-11-01 | Ebara Infilco Co Ltd | Treatment of malodorant gas |
| JPS60118236A (en) * | 1983-11-30 | 1985-06-25 | Giken Kogyo Kk | Molded photo-oxidation catalyst body |
| JPS60118289A (en) * | 1983-11-30 | 1985-06-25 | Giken Kogyo Kk | Water purifying method |
| JPS60187322A (en) * | 1984-03-06 | 1985-09-24 | Toyota Central Res & Dev Lab Inc | Purifying method of waste |
| JPS60216827A (en) * | 1984-04-10 | 1985-10-30 | Tsutomu Kagitani | Process for oxidizing decomposition of oxidizable sulphur compound |
| JPS6159775A (en) * | 1984-08-30 | 1986-03-27 | Mitsubishi Electric Corp | Semiconductor device |
| JPS61135669A (en) * | 1984-12-05 | 1986-06-23 | 鍵谷 勤 | Ultraviolet oxidative decomposition deodorizing method |
| JPS61151738U (en) * | 1985-03-12 | 1986-09-19 | ||
| JPS61282776A (en) * | 1985-06-07 | 1986-12-12 | 株式会社日立製作所 | Deodorizing device for refrigerator |
| JPS6253657A (en) * | 1985-09-02 | 1987-03-09 | 株式会社 高エネルギ−利用技術研究所 | Deodorizing apparatus |
| JPS62171960A (en) * | 1986-01-22 | 1987-07-28 | 松下電器産業株式会社 | Manufacture of thermal shock-resistant ceramics |
| JPS62176538A (en) * | 1986-01-31 | 1987-08-03 | Nippon Shokubai Kagaku Kogyo Co Ltd | Deodorant |
| JPS6380833A (en) * | 1986-09-25 | 1988-04-11 | Toyota Central Res & Dev Lab Inc | Method and apparatus for purifying malodor in compartment |
-
1988
- 1988-01-22 JP JP63010602A patent/JP2574840B2/en not_active Expired - Lifetime
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5474271A (en) * | 1977-11-25 | 1979-06-14 | Takeda Chem Ind Ltd | Odor removal |
| JPS57177328A (en) * | 1981-04-24 | 1982-11-01 | Ebara Infilco Co Ltd | Treatment of malodorant gas |
| JPS60118236A (en) * | 1983-11-30 | 1985-06-25 | Giken Kogyo Kk | Molded photo-oxidation catalyst body |
| JPS60118289A (en) * | 1983-11-30 | 1985-06-25 | Giken Kogyo Kk | Water purifying method |
| JPS60187322A (en) * | 1984-03-06 | 1985-09-24 | Toyota Central Res & Dev Lab Inc | Purifying method of waste |
| JPS60216827A (en) * | 1984-04-10 | 1985-10-30 | Tsutomu Kagitani | Process for oxidizing decomposition of oxidizable sulphur compound |
| JPS6159775A (en) * | 1984-08-30 | 1986-03-27 | Mitsubishi Electric Corp | Semiconductor device |
| JPS61135669A (en) * | 1984-12-05 | 1986-06-23 | 鍵谷 勤 | Ultraviolet oxidative decomposition deodorizing method |
| JPS61151738U (en) * | 1985-03-12 | 1986-09-19 | ||
| JPS61282776A (en) * | 1985-06-07 | 1986-12-12 | 株式会社日立製作所 | Deodorizing device for refrigerator |
| JPS6253657A (en) * | 1985-09-02 | 1987-03-09 | 株式会社 高エネルギ−利用技術研究所 | Deodorizing apparatus |
| JPS62171960A (en) * | 1986-01-22 | 1987-07-28 | 松下電器産業株式会社 | Manufacture of thermal shock-resistant ceramics |
| JPS62176538A (en) * | 1986-01-31 | 1987-08-03 | Nippon Shokubai Kagaku Kogyo Co Ltd | Deodorant |
| JPS6380833A (en) * | 1986-09-25 | 1988-04-11 | Toyota Central Res & Dev Lab Inc | Method and apparatus for purifying malodor in compartment |
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0394814A (en) * | 1989-09-04 | 1991-04-19 | Matsushita Electric Ind Co Ltd | Deodorizing method with photocatalyst |
| JPH07114925B2 (en) * | 1989-09-04 | 1995-12-13 | 松下電器産業株式会社 | Photocatalytic deodorization method |
| US5616532A (en) * | 1990-12-14 | 1997-04-01 | E. Heller & Company | Photocatalyst-binder compositions |
| JPH04117644U (en) * | 1991-03-29 | 1992-10-21 | アイシン精機株式会社 | Deodorizing device |
| JPH05180555A (en) * | 1991-06-13 | 1993-07-23 | Samsung Electronics Co Ltd | Noxious-gas removing device for refrigerator vegetable room |
| EP0630679A4 (en) * | 1992-11-10 | 1997-07-16 | Toto Ltd | Air treating method using photocatalyst under interior illumination. |
| EP0630679A1 (en) * | 1992-11-10 | 1994-12-28 | Toto Ltd. | Air treating method using photocatalyst under interior illumination |
| US5849200A (en) * | 1993-10-26 | 1998-12-15 | E. Heller & Company | Photocatalyst-binder compositions |
| US5854169A (en) * | 1993-10-26 | 1998-12-29 | E. Heller & Company | Photocatalyst-binder compositions |
| US6093676A (en) * | 1993-10-26 | 2000-07-25 | E. Heller & Company | Photocatalyst-binder compositions |
| US6013372A (en) * | 1995-03-20 | 2000-01-11 | Toto, Ltd. | Method for photocatalytically rendering a surface of a substrate superhydrophilic, a substrate with superhydrophilic photocatalytic surface, and method of making thereof |
| JPH09190712A (en) * | 1995-11-10 | 1997-07-22 | Daiko Denki Kk | Lighting system with deodorizing function |
| US6090489A (en) * | 1995-12-22 | 2000-07-18 | Toto, Ltd. | Method for photocatalytically hydrophilifying surface and composite material with photocatalytically hydrophilifiable surface |
| US5790934A (en) * | 1996-10-25 | 1998-08-04 | E. Heller & Company | Apparatus for photocatalytic fluid purification |
| US5939194A (en) * | 1996-12-09 | 1999-08-17 | Toto Ltd. | Photocatalytically hydrophilifying and hydrophobifying material |
| JPH11128630A (en) * | 1997-10-23 | 1999-05-18 | Nitto Denko Corp | Solar irradiation system air cleaning element and cleaning of air |
| JPH11276906A (en) * | 1998-03-30 | 1999-10-12 | Nitto Denko Corp | Air permeable photocatalytic sheet and its utilization |
| JP2000135418A (en) * | 1998-08-26 | 2000-05-16 | Kg Pack Kk | Gas treating element and gas treating device |
| JP4702724B2 (en) * | 1998-10-30 | 2011-06-15 | ビーエーエスエフ ソシエタス・ヨーロピア | Molded member |
| JP2000315420A (en) * | 1999-04-30 | 2000-11-14 | Shimadzu Corp | Lighting system with air purifying function |
| JP2005052785A (en) * | 2003-08-07 | 2005-03-03 | Nippon Kasei Kk | Deodorant for treating odor and deodorization apparatus consisting of deodorant for treating odor |
| JP2005322506A (en) * | 2004-05-10 | 2005-11-17 | Matsushita Electric Ind Co Ltd | Fuel cell power generating device |
| DE102012000206A1 (en) * | 2011-10-11 | 2013-04-11 | IBL Umwelt- und Biotechnik GmbH | Process for fluid purification, preferably of organic compounds |
| KR20150039812A (en) | 2012-11-22 | 2015-04-13 | 후지코 가부시키가이샤 | Air purifying device |
| WO2021240774A1 (en) * | 2020-05-29 | 2021-12-02 | 大陽工業株式会社 | Air cleaning apparatus |
| JPWO2021240774A1 (en) * | 2020-05-29 | 2021-12-02 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2574840B2 (en) | 1997-01-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH01189322A (en) | Deodorizing device | |
| JP3710323B2 (en) | Deodorizing device | |
| JP2017035645A (en) | Adsorbent, method for producing adsorbent, filter for air cleaning and air cleaning machine | |
| JPH01234729A (en) | Air conditioner | |
| JP3488496B2 (en) | Poison-resistant deodorizing photocatalyst | |
| WO2001062307A1 (en) | Apparatus for removing chemical substance | |
| JPH09206558A (en) | Device for removing harmful material in gas | |
| JP2000218161A (en) | Photo-catalyst body | |
| JP2002172157A (en) | Air cleaner | |
| JPH08173512A (en) | Deodorizing element | |
| JP2006217995A (en) | Deodorant, method of manufacturing deodorant, and deodorizer using the deodrant | |
| JP2000279493A (en) | Deodorization device and refrigeration device using the same | |
| JP3521748B2 (en) | Air purification filter and air purifier | |
| JP2005296859A (en) | Harmful substance decomposition method and harmful substance decomposition apparatus | |
| JP2002306587A (en) | Air cleaner and air cleaning filter | |
| JP2004313844A (en) | Harmful substance decomposing method | |
| JPH01159579A (en) | Deodorizer for refrigerator | |
| JPWO2002051454A1 (en) | Apparatus and method for treating contaminated air | |
| JP2004166918A (en) | Indoor air cleaning instrument | |
| JP2005034776A (en) | Purifying facility | |
| JP2000217897A (en) | Air purifying material and air purifying device using same | |
| JP2001293071A (en) | Deodorizing equipment and photocatalyst | |
| JP2000042093A (en) | Deodorant material, deodorization filter and air conditioning unit for vehicle | |
| JPH11276906A (en) | Air permeable photocatalytic sheet and its utilization | |
| JP5072795B2 (en) | Photocatalyst structure |