JP2006014964A - Purifier - Google Patents

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JP2006014964A
JP2006014964A JP2004196194A JP2004196194A JP2006014964A JP 2006014964 A JP2006014964 A JP 2006014964A JP 2004196194 A JP2004196194 A JP 2004196194A JP 2004196194 A JP2004196194 A JP 2004196194A JP 2006014964 A JP2006014964 A JP 2006014964A
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photocatalyst
porous adsorbent
porous
ultraviolet
ultraviolet lamp
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Michio Kato
道大 加藤
Akio Mukai
昭雄 向井
Akihiro Kato
陽弘 加藤
Shigeru Obara
茂 小原
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Okaya Electric Industry Co Ltd
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Okaya Electric Industry Co Ltd
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  • Physical Water Treatments (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a purifier capable of securing a large area of the surface of a photocatalyst. <P>SOLUTION: This purifier 10 is characterized by an ultraviolet lamp 12 for radiating ultraviolet rays of the wavelength with an effect of activating the photocatalyst, surrounded by a cylindrical net-like casing 14 with a number of though apertures 30, and a number of translucent porous adsorbent materials 16 holding the photocatalyst and stored inside the net-like casing 14. The porous adsorbent material 16 is, for example, made of silica gel or porous glass. A reflector 42 may be stored together with the porous adsorbent materials 16 in the net-like casing 14. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

この発明は、光触媒と、該光触媒を活性化させる光源を備えた浄化装置に係り、特に、光触媒の表面積を大きく確保することのできる浄化装置に関する。   The present invention relates to a purification device including a photocatalyst and a light source that activates the photocatalyst, and more particularly, to a purification device that can ensure a large surface area of the photocatalyst.

酸化チタン（ＴｉＯ２）等の光触媒は、紫外線等の光の照射を受けると活性化して強力な酸化還元作用を生じ、窒素酸化物（ＮＯＸ）、硫黄酸化物（ＳＯＸ）等の有害化合物や汚濁物等を効果的に分解する作用を発揮するものであることから、この光触媒と、該光触媒を活性化させる光源を備えた浄化装置が従来から用いられている。
ところで、上記光触媒による有害化合物や汚濁物等の分解は、これら有害化合物や汚濁物等が光触媒に接触することによって生じる作用である。従って、光触媒による空気や水の浄化能力を向上させるためには、光触媒の表面積をできるだけ拡大することが望ましい。 Photocatalysts such as titanium oxide (TiO 2 ) are activated when irradiated with light such as ultraviolet rays to produce a strong redox effect, and harmful compounds such as nitrogen oxides (NO X ) and sulfur oxides (SO X ) Therefore, a purification device including this photocatalyst and a light source for activating the photocatalyst has been conventionally used.
By the way, decomposition of harmful compounds, pollutants and the like by the photocatalyst is an effect caused by contact of these harmful compounds and pollutants with the photocatalyst. Therefore, in order to improve the ability of the photocatalyst to purify air and water, it is desirable to increase the surface area of the photocatalyst as much as possible.

このため、本出願人は、先に、吸気口及び排気口を備えた筐体内に、紫外線ランプを収納すると共に、該紫外線ランプで生成される紫外線の照射範囲内に、表面を光触媒で被覆された多数の繊維状体を、基体表面に対して立設状態で被着して構成した光触媒担持体を配置して成る空気浄化装置を提案した（特開２００３−２２０１２３号）。
この空気浄化装置にあっては、紫外線ランプで生成される紫外線の照射範囲内に、光触媒で被覆された多数の繊維状体を、基体表面に対して立設状態で被着して構成した光触媒担持体を配置したことから、光触媒の配置される基体の表面積が、被着された多数の繊維状体の表面積分増大することとなり、光触媒の表面積を飛躍的に拡大することができるようになっている。
特開２００３−２２０１２３号 For this reason, the applicant of the present invention first accommodates the ultraviolet lamp in a housing having an intake port and an exhaust port, and the surface is coated with a photocatalyst within an ultraviolet irradiation range generated by the ultraviolet lamp. In addition, an air purifying apparatus has been proposed in which a photocatalyst carrier formed by adhering a large number of fibrous bodies in a standing state with respect to the substrate surface is disposed (Japanese Patent Laid-Open No. 2003-220123).
In this air purification apparatus, a photocatalyst constructed by adhering a large number of fibrous bodies coated with a photocatalyst in an upright state with respect to the substrate surface within an irradiation range of ultraviolet rays generated by an ultraviolet lamp. Since the support is disposed, the surface area of the substrate on which the photocatalyst is disposed increases the surface integral of a large number of attached fibrous bodies, and the surface area of the photocatalyst can be greatly increased. ing.
JP 2003-220123 A

しかしながら、光触媒による空気や水の浄化能力を向上させるためには光触媒の表面積をできるだけ拡大することが望ましいことから、光触媒の表面積を、より一層大きく確保できる浄化装置の出現が望まれていた。   However, since it is desirable to increase the surface area of the photocatalyst as much as possible in order to improve the ability of the photocatalyst to purify air and water, it has been desired to develop a purifying device that can secure a larger surface area of the photocatalyst.

本発明は、上記従来の問題点に鑑みてなされたものであり、その目的とするところは、光触媒の表面積を大きく確保することのできる浄化装置の実現にある。   The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to realize a purification device capable of ensuring a large surface area of a photocatalyst.

上記の目的を達成するため、本発明に係る浄化装置は、光触媒活性化作用を有する波長の光を放射する光源を、多数の連通孔を備えた網状容器で囲繞すると共に、該網状容器内に、光触媒を保持して成る多数の透光性の多孔質吸着材を収納したことを特徴とする。   In order to achieve the above object, a purification device according to the present invention surrounds a light source that emits light having a wavelength having a photocatalytic activation action with a mesh container having a large number of communication holes, and in the mesh container. A large number of light-transmitting porous adsorbents holding a photocatalyst are accommodated.

上記多孔質吸着材と共に反射材を、上記網状容器内に収納するようにしても良い。   A reflective material may be housed in the mesh container together with the porous adsorbent.

上記多孔質吸着材としては、シリカゲル又は多孔質ガラスが該当する。   Silica gel or porous glass corresponds to the porous adsorbent.

本発明の浄化装置にあっては、光源を囲繞する網状容器内に、比表面積が極めて大きい多数の多孔質吸着材を収納すると共に、これら多孔質吸着材の表面及び細孔内に光触媒を保持せしめたことから、光触媒の表面積を大きく確保することができる。   In the purification apparatus of the present invention, a large number of porous adsorbents having a very large specific surface area are housed in a mesh container surrounding a light source, and a photocatalyst is held on the surfaces and pores of these porous adsorbents. As a result, it is possible to secure a large surface area of the photocatalyst.

尚、上記多孔質吸着材と共に反射材を、上記網状容器内に収納した場合には、光触媒を活性化させる光を様々な方向に反射させて光触媒への照射効率を向上させることができる。   In addition, when a reflecting material is accommodated in the mesh container together with the porous adsorbent, the light for activating the photocatalyst can be reflected in various directions to improve the irradiation efficiency to the photocatalyst.

以下、図面に基づき、本発明に係る浄化装置の実施形態を説明する。
図１は、本発明に係る浄化装置10の模式的断面図であり、この浄化装置10は、光源としての紫外線ランプ12と、該紫外線ランプ12を囲繞する略円筒状の網状容器14と、該網状容器14内に収納された光触媒（図示せず）を保持して成る多数の透光性の多孔質吸着材16を備えている。
上記紫外線ランプ12は、略円筒状の網状容器14の中心軸線上に配置されている。 Hereinafter, an embodiment of a purification device according to the present invention will be described with reference to the drawings.
FIG. 1 is a schematic cross-sectional view of a purification apparatus 10 according to the present invention. The purification apparatus 10 includes an ultraviolet lamp 12 as a light source, a substantially cylindrical mesh container 14 surrounding the ultraviolet lamp 12, and the A large number of translucent porous adsorbents 16 holding a photocatalyst (not shown) housed in the mesh container 14 are provided.
The ultraviolet lamp 12 is disposed on the central axis of a substantially cylindrical mesh container 14.

上記紫外線ランプ12は、図２に示すように、石英ガラス等の紫外線透過ガラスより成る略円筒状の一対の直管部18，18と、両直管部18，18を連通接続する曲管部20と、上記直管部18，18の開口を溶融封止して成る封止部22とから構成される気密容器24と、該気密容器24内の封止部22近傍にそれぞれ配置された一対の放電電極26，26と、各放電電極26に接続されたリード線28とを備えて成る。
上記気密容器24内には、アルゴンと水銀とを混合してなる紫外線放射ガス、或いは、キセノンを主体とした紫外線放射ガス、アルゴンとキセノンとを混合してなる紫外線放射ガスが充填されている。
上記放電電極26は、モリブデン、タングステン等より成り、先端部は直管部18内に露出すると共に、基端部は気密容器24の封止部22内に埋設されている。封止部22内に埋設された放電電極26の基端部には、リード線28の一端が接続され、該リード線28の他端は、気密容器24の外部に導出されている。 As shown in FIG. 2, the ultraviolet lamp 12 includes a pair of substantially cylindrical straight pipe portions 18, 18 made of ultraviolet transmissive glass such as quartz glass, and a curved pipe portion that connects the straight pipe portions 18, 18 in communication with each other. 20 and a hermetic container 24 comprising a sealing part 22 formed by melting and sealing the openings of the straight pipe parts 18 and 18, and a pair disposed in the vicinity of the sealing part 22 in the hermetic container 24, respectively. The discharge electrodes 26, 26 and lead wires 28 connected to the respective discharge electrodes 26 are provided.
The airtight container 24 is filled with an ultraviolet radiation gas formed by mixing argon and mercury, an ultraviolet radiation gas mainly composed of xenon, or an ultraviolet radiation gas formed by mixing argon and xenon.
The discharge electrode 26 is made of molybdenum, tungsten, or the like. The distal end portion is exposed in the straight tube portion 18 and the proximal end portion is embedded in the sealing portion 22 of the airtight container 24. One end of a lead wire 28 is connected to the base end portion of the discharge electrode 26 embedded in the sealing portion 22, and the other end of the lead wire 28 is led out of the hermetic container 24.

上記網状容器14は、多数の連通孔30を備えた内筒32と、該内筒32より大径と成され、多数の連通孔30を備えた外筒34を有すると共に、上記内筒32と外筒34間の下端開口を閉塞する略環状の底蓋36と、上記内筒32と外筒34間の上端開口及び内筒32の上端開口を閉塞する略円盤状の天蓋38を有している。
上記多孔質吸着材16は、網状容器14の内筒32と外筒34間に形成された空間内に収容されている。
上記内筒32及び外筒34は、金属や樹脂等の適宜な材料で構成することができる。尚、光触媒への紫外線の照射効率を向上させるため、上記網状容器14を透光性樹脂等の透光性材料で構成し、紫外線ランプ12から放射される紫外線が網状容器14によって遮られないようにしても良い。
上記天蓋38は、内方に向けて傾斜する断面略Ｖ字状の傾斜部40が形成されており、該傾斜部40の内面は、紫外線ランプ12から放射される紫外線を反射する反射面40ａと成されている。反射面40ａを有する天蓋38は、アルミニウム等の光反射率の高い材料で構成することができる。また、光反射率の高い白色と成された部材で天蓋38を構成しても良い。
尚、光触媒の表面積を拡大させるため、上記網状容器14にも光触媒を担持させるようにしても良い。 The net-like container 14 includes an inner cylinder 32 having a large number of communication holes 30, and an outer cylinder 34 having a larger diameter than the inner cylinder 32 and having a large number of communication holes 30, and the inner cylinder 32 A substantially annular bottom lid 36 for closing the lower end opening between the outer cylinders 34, and an upper end opening between the inner cylinder 32 and the outer cylinder 34 and a substantially disc-shaped canopy 38 for closing the upper end opening of the inner cylinder 32. Yes.
The porous adsorbent 16 is accommodated in a space formed between the inner cylinder 32 and the outer cylinder 34 of the mesh container 14.
The inner cylinder 32 and the outer cylinder 34 can be made of an appropriate material such as metal or resin. In addition, in order to improve the irradiation efficiency of the ultraviolet rays to the photocatalyst, the mesh container 14 is made of a translucent material such as a translucent resin so that the ultraviolet rays emitted from the ultraviolet lamp 12 are not blocked by the mesh container 14. Anyway.
The canopy 38 is formed with an inclined portion 40 having a substantially V-shaped cross section inclined inward, and an inner surface of the inclined portion 40 is a reflective surface 40a that reflects ultraviolet rays emitted from the ultraviolet lamp 12. It is made. The canopy 38 having the reflecting surface 40a can be made of a material having a high light reflectance such as aluminum. Further, the canopy 38 may be formed of a member made of white having a high light reflectance.
In order to increase the surface area of the photocatalyst, the net-like container 14 may also carry the photocatalyst.

上記透光性の多孔質吸着材16は、径が１０ｎｍ〜５０ｎｍ程度の細孔を多数有する直径０．１ｍｍ〜５ｍｍ程度のビーズ状のシリカゲルで構成されており、細孔の比表面積が５０ｍ２／ｇ〜３００ｍ２／ｇ程度と極めて大きいものである。光触媒は、上記多孔質吸着材16の表面のみならず、細孔内にも吸着保持されている。
光触媒としては、ＴｉＯ２、ＺｎＯ、ＳｒＴｉＯ３、ＢａＴｉＯ３、Ｆｅ２Ｏ３等、光触媒作用を有する種々の金属酸化物を用いることができるが、アナターゼ型の酸化チタンが、光触媒活性に優れており最も好適に使用できる。
上記多孔質吸着材16の表面及び細孔内に光触媒を保持させるには、例えば、粒径が多孔質吸着材16の細孔径より小さい光触媒微粒子の分散液中に、多孔質吸着材16を浸漬した後、乾燥・焼成させることにより行うことができる。 The translucent porous adsorbent 16 is composed of bead-shaped silica gel having a diameter of about 0.1 mm to 5 mm having a large number of pores having a diameter of about 10 nm to 50 nm, and the specific surface area of the pores is 50 m 2. / G to about 300 m 2 / g. The photocatalyst is adsorbed and held not only on the surface of the porous adsorbent 16 but also in the pores.
As the photocatalyst, various metal oxides having a photocatalytic action such as TiO 2 , ZnO, SrTiO 3 , BaTiO 3 , Fe 2 O 3 can be used, but anatase type titanium oxide has excellent photocatalytic activity. It can be most preferably used.
In order to retain the photocatalyst on the surface and pores of the porous adsorbent 16, for example, the porous adsorbent 16 is immersed in a dispersion of photocatalyst fine particles whose particle diameter is smaller than the pore diameter of the porous adsorbent 16. Then, it can be performed by drying and firing.

本発明の浄化装置10にあっては、紫外線ランプ12の一対の放電電極26，26間で放電が生成されると、電子が紫外線放射ガスに衝突して様々な波長の紫外線が生成される。生成された紫外線は気密容器24を透過した後、連通孔30を通過して網状容器14内に収納された多孔質吸着材16に保持された光触媒に照射される。この結果、光触媒が活性化して空気や水の浄化を行うことができるのである。
而して、本発明の浄化装置10は、紫外線ランプ12を囲繞する網状容器14内に、比表面積が極めて大きい多数の多孔質吸着材16を収納すると共に、これら多孔質吸着材16の表面及び細孔内に光触媒を保持せしめたことから、光触媒の表面積を大きく確保することができる。
上記紫外線ランプ12は、略円筒状の網状容器14の中心軸線上に配置されているので、紫外線ランプ12から放射される紫外線を、効率良く多孔質吸着材16に保持された光触媒に照射することができる。 In the purification device 10 of the present invention, when a discharge is generated between the pair of discharge electrodes 26, 26 of the ultraviolet lamp 12, electrons collide with the ultraviolet radiation gas to generate ultraviolet rays having various wavelengths. The generated ultraviolet light passes through the airtight container 24, passes through the communication hole 30, and is irradiated to the photocatalyst held in the porous adsorbent 16 accommodated in the mesh container 14. As a result, the photocatalyst is activated and air and water can be purified.
Thus, the purification device 10 of the present invention accommodates a large number of porous adsorbents 16 having a very large specific surface area in a mesh container 14 surrounding the ultraviolet lamp 12, and the surface of the porous adsorbents 16 and Since the photocatalyst is held in the pores, a large surface area of the photocatalyst can be secured.
Since the ultraviolet lamp 12 is arranged on the central axis of the substantially cylindrical net-like container 14, the ultraviolet light emitted from the ultraviolet lamp 12 is efficiently irradiated to the photocatalyst held by the porous adsorbent 16. Can do.

上記の通り、多孔質吸着材16は透光性を有していることから、多孔質吸着材16の表面及び細孔内に保持した光触媒に紫外線を十分に照射することが可能である。また、多数の細孔を有する多孔質吸着材16は、通気性、通水性に優れていることから、光触媒と、空気や水との接触効率が良好である。
尚、紫外線ランプ12から放射された紫外線の一部は、網状容器14へ向かわず、天蓋38の方向へ向かうが、上記の通り、天蓋38には断面略Ｖ字状の傾斜部40が形成され、該傾斜部40の内面が反射面40ａと成されているので、紫外線を反射して網状容器14内の多孔質吸着材16へ導くことができる。 As described above, since the porous adsorbent 16 has translucency, it is possible to sufficiently irradiate the photocatalyst held on the surface and pores of the porous adsorbent 16 with ultraviolet rays. Further, since the porous adsorbent 16 having a large number of pores is excellent in air permeability and water permeability, the contact efficiency between the photocatalyst and air or water is good.
A part of the ultraviolet rays emitted from the ultraviolet lamp 12 does not go to the mesh container 14 but goes to the canopy 38. As described above, the canopy 38 is formed with the inclined portion 40 having a substantially V-shaped cross section. Since the inner surface of the inclined portion 40 is formed as the reflecting surface 40a, the ultraviolet light can be reflected and guided to the porous adsorbent 16 in the mesh container 14.

上記紫外線ランプ12としては、光触媒活性化作用に優れた３００〜４００ｎｍ（特に３６０ｎｍ）の波長の紫外線を発光するものを好適に用いることができる。
また、紫外線ランプ12として、殺菌作用が顕著な２５４ｎｍの波長の紫外線を発光するものを用いた場合には、光触媒による脱臭・殺菌効果と共に、２５４ｎｍ波長の紫外線による殺菌効果を得ることができる。
さらに、紫外線ランプ12として、オゾン生成作用が顕著な１８５ｎｍ波長の紫外線及び殺菌作用が顕著な２５４ｎｍの波長の紫外線を発光するものを用いた場合には、光触媒による脱臭・殺菌効果、２５４ｎｍ波長の紫外線による殺菌効果及び１８５ｎｍ波長の紫外線で生成されたオゾンによる殺菌・脱臭効果を得ることができる。 As the ultraviolet lamp 12, a lamp that emits ultraviolet rays having a wavelength of 300 to 400 nm (especially 360 nm) excellent in photocatalytic activation can be suitably used.
Further, when the ultraviolet lamp 12 that emits ultraviolet light having a wavelength of 254 nm, which has a remarkable sterilizing action, is used, a sterilizing effect by ultraviolet light having a wavelength of 254 nm can be obtained together with a deodorizing and sterilizing effect by a photocatalyst.
Further, when an ultraviolet lamp 12 that emits ultraviolet light with a wavelength of 185 nm, which has a remarkable ozone generating action, and ultraviolet light with a wavelength of 254 nm, which has a remarkable bactericidal action, is used, the deodorizing / sterilizing effect by the photocatalyst is obtained. The sterilizing effect by ozone and the sterilizing / deodorizing effect by ozone generated by ultraviolet rays having a wavelength of 185 nm can be obtained.

図３は、上記浄化装置10の変形例を示すものであり、該浄化装置10の変形例は、網状容器14内に、多数の多孔質吸着材16と共に複数のビーズ状の反射材42を収納した点に特徴を有するものである。
上記反射材42は、アルミニウム等の光反射率の高い材料で構成することができる。また、表面が光反射率の高い白色と成された部材で反射材42を構成しても良い。
このように、多孔質吸着材16と共に反射材42を網状容器14内に収納することにより、紫外線ランプ12から放射される紫外線を様々な方向に反射させて、多孔質吸着材16に保持された光触媒への照射効率を向上させることができる。 FIG. 3 shows a modified example of the purification device 10. The modified example of the purification device 10 houses a plurality of bead-like reflectors 42 together with a large number of porous adsorbents 16 in a mesh container 14. It has the characteristics in the point.
The reflector 42 can be made of a material having high light reflectance such as aluminum. Further, the reflecting material 42 may be formed of a member whose surface is white with high light reflectance.
In this way, by storing the reflective material 42 together with the porous adsorbent 16 in the mesh container 14, the ultraviolet light emitted from the ultraviolet lamp 12 is reflected in various directions and held in the porous adsorbent 16. Irradiation efficiency to the photocatalyst can be improved.

図４は、本発明の浄化装置10を用いて構成した空気浄化装置50を示すものである。この空気浄化装置50は、ガラス等の透光性材料より成る筒状体52の内部に、本発明の浄化装置10を配置すると共に、これら筒状体52及び浄化装置10を、筐体54上に載置して成る。   FIG. 4 shows an air purification device 50 constructed using the purification device 10 of the present invention. The air purifying device 50 includes the purifying device 10 of the present invention disposed inside a cylindrical body 52 made of a translucent material such as glass, and the cylindrical body 52 and the purifying device 10 are mounted on a casing 54. It is mounted on.

上記筒状体52の内壁面には、紫外線ランプ12から放射される紫外線で励起されて所定色の可視光を発光する蛍光体56が被着されている。筒状体52の上端には、フランジ部58が形成されており、該フランジ部58には排気口60が形成されている。また、筒状体52のフランジ部58には、芳香を発するエッセンシャルオイル用の蒸発皿62が載置され、該蒸発皿62によって筒状体52の上端開口が閉塞されている。この蒸発皿62には、通気孔64が形成されている。   On the inner wall surface of the cylindrical body 52, a phosphor 56 that is excited by ultraviolet rays emitted from the ultraviolet lamp 12 and emits visible light of a predetermined color is attached. A flange portion 58 is formed at the upper end of the cylindrical body 52, and an exhaust port 60 is formed in the flange portion 58. An evaporating dish 62 for essential oil that emits aroma is placed on the flange portion 58 of the cylindrical body 52, and the upper end opening of the cylindrical body 52 is closed by the evaporating dish 62. A vent hole 64 is formed in the evaporating dish 62.

上記筐体54の下面には、空気を筐体54内部に取り入れるための吸気口66が形成され、筐体54の上面には、吸気口66から取り入れた空気を筒状体52内部へ送るための開口68が形成されている。また、筐体54内部には、ファン70と、ファン70及び紫外線ランプ12の駆動を制御する駆動部72が収納されている。   An intake port 66 for taking air into the housing 54 is formed on the lower surface of the housing 54, and air taken from the intake port 66 is sent to the inside of the cylindrical body 52 on the upper surface of the housing 54. The opening 68 is formed. In addition, a fan 70 and a driving unit 72 that controls driving of the fan 70 and the ultraviolet lamp 12 are housed in the housing 54.

以下において、上記空気浄化装置50を用いて、空気の浄化処理を行う手順を説明する。
先ず、駆動部72から上記ファン70及び浄化装置10の紫外線ランプ12に電源供給することにより、ファン70を駆動させると共に紫外線ランプ12を点灯させる。
上記ファン70の駆動により、外部の空気が吸気口66より筐体54内に導入され、吸気口66から、上記筒状体52の排気口60及び蒸発皿62の通気孔64へ向かう空気の流路が形成される。
また、上記紫外線ランプ12の点灯によって生成された紫外線の照射を受けて、網状容器14内に収納された多孔質吸着材16に保持された光触媒が活性化することとなる。
筐体54内部に導入された空気は、排気口60及び通気孔64に向かって上昇していく過程で、活性化した上記光触媒と接触することにより、該空気中の有害化合物や汚濁物等が分解されて浄化されるのである。 Hereinafter, a procedure for performing an air purification process using the air purification device 50 will be described.
First, by supplying power from the driving unit 72 to the fan 70 and the ultraviolet lamp 12 of the purification device 10, the fan 70 is driven and the ultraviolet lamp 12 is turned on.
By driving the fan 70, external air is introduced into the housing 54 from the air inlet 66, and the air flow from the air inlet 66 toward the exhaust port 60 of the cylindrical body 52 and the vent hole 64 of the evaporating dish 62. A path is formed.
In addition, the photocatalyst held in the porous adsorbent 16 accommodated in the mesh container 14 is activated by the irradiation of the ultraviolet rays generated by turning on the ultraviolet lamp 12.
The air introduced into the housing 54 comes into contact with the activated photocatalyst in the process of rising toward the exhaust port 60 and the vent hole 64, so that harmful compounds and pollutants in the air are removed. It is decomposed and purified.

また、紫外線ランプ12から放射された紫外線の一部は、筒状体52の内壁面の蛍光体56に照射され、その結果、蛍光体56から所定色の可視光が発光され、この可視光が筒状体52を透過して外部へ放射されることとなる。このため、この空気浄化装置50は、放射される可視光によって、照明、或いは室内装飾等にも利用することができる。
さらに、上記蒸発皿62に、エッセンシャルオイルを所定量垂らしたり、或いはエッセンシャルオイルを含浸させた不織布等を載置しておけば、紫外線ランプ12の熱で暖められた空気によってエッセンシャルオイルの蒸発が促進され、芳香が放出される。 Further, a part of the ultraviolet rays radiated from the ultraviolet lamp 12 is irradiated onto the phosphor 56 on the inner wall surface of the cylindrical body 52. As a result, visible light of a predetermined color is emitted from the phosphor 56, and this visible light is emitted. The light passes through the cylindrical body 52 and is emitted to the outside. For this reason, the air purification device 50 can be used for illumination, interior decoration, and the like by the emitted visible light.
Further, if a predetermined amount of the essential oil is hung on the evaporating dish 62 or a non-woven fabric impregnated with the essential oil is placed on the evaporating dish 62, the evaporation of the essential oil is promoted by the air warmed by the heat of the ultraviolet lamp 12, and the fragrance Is released.

尚、本発明の浄化装置10を空気浄化のために用いる場合には、上記多孔質吸着材16の表面をシリコン樹脂や、テトラフルオロエチレンの重合体（ポリテトラフルオロエチレン、ＰＴＦＥ）であるテフロン（登録商標）等の撥水性のある気体透過性樹脂で被覆しても良い。
このように、多孔質吸着材16の表面を撥水性のある気体透過性樹脂で被覆すると、多孔質吸着材16が空気中の水分を細孔内に吸着することが抑制され、その結果、浄化対象の空気を効率よく細孔内に吸着して、細孔内の光触媒と接触させることができる。 When the purification device 10 of the present invention is used for air purification, the surface of the porous adsorbent 16 is made of silicon resin or Teflon (polytetrafluoroethylene, PTFE), which is a polymer of tetrafluoroethylene (polytetrafluoroethylene, PTFE). You may coat | cover with gas permeable resin with water repellency, such as a registered trademark.
As described above, when the surface of the porous adsorbent 16 is coated with a water-repellent gas-permeable resin, the porous adsorbent 16 is suppressed from adsorbing moisture in the air into the pores. The target air can be efficiently adsorbed in the pores and brought into contact with the photocatalyst in the pores.

上記においては、透光性の多孔質吸着材16をシリカゲルで構成した場合を例に挙げて説明したが、本発明はこれに限定されるものではなく、バイコールガラス等のｎｍ単位の多数の細孔を有する多孔質ガラスで上記多孔質吸着材16を構成しても良い。   In the above description, the case where the translucent porous adsorbent 16 is made of silica gel has been described as an example. However, the present invention is not limited to this, and a large number of fine units of nm such as Vycor glass are used. The porous adsorbent 16 may be made of porous glass having pores.

また、上記光触媒は、紫外線の照射を受けて活性化する光触媒だけでなく、可視光の照射を受けて活性化する可視光型光触媒を用いることもできる。この場合、光源には、上記紫外線ランプ12に代えて可視光型光触媒を活性化させる波長の可視光を放射する放電管を用いれば良い。
尚、光源は、光触媒活性化作用を有する波長の紫外線や可視光等の光を放射するものであれば良く、上記紫外線ランプ12に限らず、発光ダイオード（ＬＥＤ）等を用いることもできる。 The photocatalyst can be not only a photocatalyst that is activated by irradiation with ultraviolet rays but also a visible light photocatalyst that is activated by irradiation with visible light. In this case, the light source may be a discharge tube that emits visible light having a wavelength that activates the visible light photocatalyst instead of the ultraviolet lamp 12.
The light source is not limited to the ultraviolet lamp 12 but may be a light emitting diode (LED) or the like as long as it emits light such as ultraviolet light or visible light having a wavelength having a photocatalytic activation effect.

本発明に係る浄化装置を模式的に示す概略断面図である。It is a schematic sectional drawing which shows typically the purification apparatus which concerns on this invention. 本発明の紫外線ランプを示す正面図である。It is a front view which shows the ultraviolet lamp of this invention. 本発明に係る浄化装置の変形例を模式的に示す概略断面図である。It is a schematic sectional drawing which shows typically the modification of the purification apparatus which concerns on this invention. 本発明に係る浄化装置を用いて形成した空気浄化装置を模式的に示す概略断面図である。It is a schematic sectional drawing which shows typically the air purification apparatus formed using the purification apparatus which concerns on this invention.

符号の説明Explanation of symbols

10 浄化装置
12 紫外線ランプ
14 網状容器
16 多孔質吸着材
30 連通孔
32 内筒
34 外筒
36 底蓋
38 天蓋
40 傾斜部
40ａ反射面
42 反射材
50 空気浄化装置
10 Purification device
12 UV lamp
14 Mesh container
16 Porous adsorbent
30 communication hole
32 inner cylinder
34 outer cylinder
36 Bottom cover
38 Canopy
40 Slope
40a reflective surface
42 Reflector
50 Air purifier

Claims (3)

光触媒活性化作用を有する波長の光を放射する光源を、多数の連通孔を備えた網状容器で囲繞すると共に、該網状容器内に、光触媒を保持して成る多数の透光性の多孔質吸着材を収納したことを特徴とする浄化装置。   A light source that emits light having a wavelength having a photocatalytic activation action is surrounded by a reticulated container having a large number of communicating holes, and a large number of light-transmitting porous adsorptions that hold the photocatalyst in the reticulated container. A purification device characterized by containing a material. 上記多孔質吸着材と共に反射材を、上記網状容器内に収納して成ることを特徴とする請求項１に記載の浄化装置。   The purification apparatus according to claim 1, wherein a reflecting material is housed in the mesh container together with the porous adsorbent. 上記多孔質吸着材が、シリカゲル又は多孔質ガラスであることを特徴とする請求項１又は２に記載の浄化装置。


The purification apparatus according to claim 1 or 2, wherein the porous adsorbent is silica gel or porous glass.


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JP2014529318A (en) * 2011-06-08 2014-11-06 ゼネックス・ディスインフェクション・サービシィズ・エルエルシイ UV discharge lamp device
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US9773658B2 (en) 2011-06-08 2017-09-26 Xenex Disinfection Services, Llc. Ultraviolet discharge lamp apparatuses having lamp housings which are transparent to ultraviolet light
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US10004822B2 (en) 2011-06-08 2018-06-26 Xenex Disinfection Services, Llc. Mobile ultraviolet lamp apparatuses having a reflector system that redirects light to a high touch area of a room
US9698003B2 (en) 2011-06-08 2017-07-04 Xenex Disinfection Services, Llc. Ultraviolet discharge lamp apparatuses with one or more reflectors
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US11929247B2 (en) 2011-06-08 2024-03-12 Xenex Disinfection Services Inc. Ultraviolet lamp apparatuses having automated mobility while emitting light
US9773658B2 (en) 2011-06-08 2017-09-26 Xenex Disinfection Services, Llc. Ultraviolet discharge lamp apparatuses having lamp housings which are transparent to ultraviolet light
US11000608B2 (en) 2011-06-08 2021-05-11 Xenex Disinfection Services Inc. Ultraviolet lamp room/area disinfection apparatuses having integrated cooling systems
US10410853B2 (en) 2011-06-08 2019-09-10 Xenex Disinfection Services, Llc. Ultraviolet lamp apparatuses with one or more moving components
US10335506B2 (en) 2011-06-08 2019-07-02 Xenex Disinfection Services, Llc. Mobile ultraviolet lamp apparatuses having a reflector system that redirects light to a high touch area of a room
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JP2017023897A (en) * 2015-07-16 2017-02-02 株式会社フジコー Deodorization device
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