JPH02149314A - Method and equipment for removing ozone - Google Patents
Method and equipment for removing ozoneInfo
- Publication number
- JPH02149314A JPH02149314A JP63303077A JP30307788A JPH02149314A JP H02149314 A JPH02149314 A JP H02149314A JP 63303077 A JP63303077 A JP 63303077A JP 30307788 A JP30307788 A JP 30307788A JP H02149314 A JPH02149314 A JP H02149314A
- Authority
- JP
- Japan
- Prior art keywords
- ozone
- ozone removal
- removal member
- removing member
- heating means
- 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.)
- Pending
Links
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims abstract description 106
- 238000000034 method Methods 0.000 title claims description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 22
- 238000000354 decomposition reaction Methods 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 239000003054 catalyst Substances 0.000 description 6
- 239000002250 absorbent Substances 0.000 description 5
- 230000002745 absorbent Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 108091008695 photoreceptors Proteins 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Control Or Security For Electrophotography (AREA)
- Treating Waste Gases (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野〕
本発明は、画像形成装置において放電装置より発生する
オゾンを除去するだめのオゾン除去装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an ozone removal device for removing ozone generated from a discharge device in an image forming apparatus.
従来、静電画像形成装置において、光導電体を帯電する
工程、光導電体上のトナー像を転写部材に転写する工程
、および光導電体と転写部材を分離するための除電工程
等においてコロナ放電装置が使用されている。この、コ
ロナ放電装置はタングステン等の細線に高電圧を加えて
空気中で放電が行われるのでオゾン（０３）が大量に発
生する。Conventionally, in electrostatic image forming apparatuses, corona discharge is used in the process of charging a photoconductor, the process of transferring a toner image on the photoconductor to a transfer member, and the static elimination process of separating the photoconductor and transfer member. The device is in use. This corona discharge device applies a high voltage to a fine wire such as tungsten and discharges in the air, so a large amount of ozone (03) is generated.
このオゾンは光導電体やその他の部材を酸化する等悪影
響を与える他、機外に大量に放出されると人体にも影響
があることが知られている。従って通常は、画像形成装
置にオゾン吸収剤等を介して排気ファン等で機外へ排出
することでオゾンを除去している。This ozone not only has negative effects such as oxidizing photoconductors and other components, but is also known to have an effect on the human body if large amounts are released outside the aircraft. Therefore, ozone is usually removed by discharging it outside the image forming apparatus using an exhaust fan or the like via an ozone absorbent or the like.
しかしながら、上記オゾン吸収剤等のオゾン除去装置は
、連続使用によって劣化する。例えば活性炭で吸収分解
を行う時には表面が灰化したり、排出気体中の水分によ
って泥化して通気孔の閉塞が起こる。また、酸化マンガ
ン等の触媒によってオゾンを分解するものでも、温度が
低いとオゾンの分解が十分に行われなかったり、あるい
は表面に酸化物が付着したりして活性でなくなったりす
る。また、たとえオゾン除去部材を過剰量設けても、結
局表面が劣化すれば、オゾン除去能力は低下してしまう
。However, ozone removal devices such as the above-mentioned ozone absorbers deteriorate with continuous use. For example, when absorption and decomposition are carried out using activated carbon, the surface turns to ash or becomes muddy due to moisture in the exhaust gas, which can clog vent holes. Furthermore, even if a catalyst such as manganese oxide is used to decompose ozone, if the temperature is low, the ozone will not be decomposed sufficiently, or oxides will adhere to the surface and the catalyst will become inactive. Further, even if an excessive amount of ozone removing member is provided, if the surface eventually deteriorates, the ozone removing ability will decrease.
一方、オゾン吸収剤を加熱手段にて加熱するオゾン除去
装置（特開昭５９−１５４１２２）が提案されている。On the other hand, an ozone removal device (Japanese Unexamined Patent Publication No. 154122/1983) has been proposed in which an ozone absorbent is heated by a heating means.
しがし、オゾン除去部材を加熱することによって分解反
応が促進され、また触媒等の表面も活性化されるという
点では好適であるが、活性炭などを使用して、酸化力の
強いオゾンを大量に含有する気体と接触しながら加熱す
ると急激な酸化が進行して、燃焼したり爆発したりする
危険性がある。また、発生ずるオゾンを効率よく排出さ
れるためには排出口をオゾンを発生するコロナ放電装置
からの風の流れを最も適切になるように設けなければな
らず、また排出口は機内の冷却作用も兼ねているため、
オゾン吸収剤の加熱手段を設けることが困難になる。However, heating the ozone removal member is preferable in that it accelerates the decomposition reaction and also activates the surface of the catalyst, etc. However, it is preferable to use activated carbon etc. to remove a large amount of ozone, which has strong oxidizing power. If it is heated while coming into contact with gases contained in it, oxidation will proceed rapidly and there is a risk of combustion or explosion. In addition, in order to efficiently discharge the ozone generated, the exhaust port must be installed in such a way that the airflow from the corona discharge device that generates ozone is optimally controlled, and the exhaust port must be placed so that it can be used to cool the inside of the aircraft. Because it also serves as
It becomes difficult to provide heating means for the ozone absorbent.
従って、本発明の目的は、オゾン除去装置を効率よく使
用し、常に活性なオゾン除去装置を従供することにある
。Therefore, an object of the present invention is to use an ozone removal device efficiently and to provide an ozone removal device that is always active.
また、本発明の他の目的は、画像形成装置内の余熱を有
効に利用してオゾン除去装置の活性をはかることにある
。Another object of the present invention is to effectively utilize residual heat within the image forming apparatus to activate the ozone removal apparatus.
［問題点を解決するための手段］
上記目的を達成するために、第１の発明ではオゾン発生
源付近に設けたオゾン除去部材がオゾンを処理した後、
オゾン除去部材を加熱手段において加熱して再度使用可
能にすることを特徴りしており、第２の発明では連続的
に配設したオゾン除去部材を、オゾン発生源付近と加熱
手段の間に循環させることを特徴としている。[Means for Solving the Problems] In order to achieve the above object, in the first invention, after the ozone removal member provided near the ozone generation source processes ozone,
The invention is characterized in that the ozone removal member is heated by the heating means to make it usable again, and in the second invention, the continuously disposed ozone removal member is circulated between the vicinity of the ozone generation source and the heating means. It is characterized by allowing
第１の発明では排気口でオゾンを吸収したオゾン除去部
材が加熱手段に移動して加熱されオゾンを効率的に分解
することができる。またはオゾン除去部材の表面を活性
化することによりほぼ初期のオゾン除去能力に回復する
ので排気口に設けるオゾン除去部材を常に活性な状態に
することができる。その作用は、オゾン除去部材の種類
によって異なっている。たとえばオゾン除去部材の基体
にアルミナ、シリカ等をの吸収剤を使用した場合は、排
気口でオゾンや気体に含有された水分を吸収して表面に
それ以上オゾンが吸着しなくなる。In the first invention, the ozone removing member that has absorbed ozone at the exhaust port is moved to the heating means and heated, thereby making it possible to efficiently decompose ozone. Alternatively, by activating the surface of the ozone removing member, the ozone removing ability is restored to approximately the initial level, so that the ozone removing member provided at the exhaust port can be kept in an active state at all times. Its action differs depending on the type of ozone removal member. For example, if an absorbent such as alumina or silica is used in the base of the ozone removal member, the ozone and moisture contained in the gas will be absorbed at the exhaust port, and no more ozone will be adsorbed on the surface.
このような吸収剤を加熱するとオゾンが加熱分解し、ま
た乾燥して初期の活性を回復させることができる。すな
わち、吸収と分解を別の場所で行い、連続して吸収と分
解を繰り返すので効率がよく、また劣化しにくくなる。When such an absorbent is heated, ozone is thermally decomposed and dried to restore its initial activity. In other words, absorption and decomposition are performed in different locations, and absorption and decomposition are repeated continuously, making it more efficient and less susceptible to deterioration.
また、オゾン除去剤として活性炭を使用したときも表面
の灰化した部分を加熱することにより十分酸化して除去
することができ、また吸着した水分を除去して表面を活
性にすることができる。さらに、酸化マンガン等のオゾ
ン分解触媒をオゾン除去部材として使用したときは、排
気口で付着した異物や水分を加熱することにより除去し
て表面を活性化するとかできる。Furthermore, when activated carbon is used as an ozone remover, by heating the ashed portion of the surface, it can be sufficiently oxidized and removed, and the adsorbed moisture can be removed to make the surface active. Furthermore, when an ozone decomposition catalyst such as manganese oxide is used as an ozone removal member, foreign matter and moisture attached at the exhaust port can be removed by heating to activate the surface.
また、劣化を防止する作用のみならず、触媒を加熱して
排気口に供給することができるので、オゾンの分解効率
を大幅に改善することができる。Furthermore, in addition to the effect of preventing deterioration, the catalyst can be heated and supplied to the exhaust port, so that the ozone decomposition efficiency can be significantly improved.
また、通常排気口に設けなければならないオゾン除去部
材よりも少ない量を設けるだけで十分なので、通気を妨
げるものの量が少なくなり、圧力の損失が少なくなり、
効率良く排気するとかでき第２の発明では、排気口で劣
化したオゾン除去部材を取り外して加熱部にて加熱する
ことができるので一度劣化したオゾン除去部材を簡単な
構成で再び活性化して使用することができる。また加熱
部はオゾン除去部材の設置場所とは関係なく任意に設け
ることができるので、画像形成装置内の熱源を利用する
ことができる。この手段に使用するオゾン除部材として
は、劣化の進行が比較的遅く十分に加熱が必要なオゾン
分解触媒等が適している。In addition, since it is sufficient to install a smaller amount of ozone removal material than normally required at the exhaust port, the amount of obstructions to ventilation is reduced, resulting in less pressure loss.
In the second invention, the ozone removal member that has deteriorated at the exhaust port can be removed and heated in the heating section, so that the ozone removal member that has deteriorated once can be reactivated and used with a simple configuration. be able to. Further, since the heating section can be provided arbitrarily regardless of the installation location of the ozone removal member, the heat source within the image forming apparatus can be used. As the ozone removal member used in this means, an ozone decomposition catalyst or the like, which deteriorates relatively slowly and requires sufficient heating, is suitable.
第１図に、本発明のオゾン除去装置を備えた画像形成装
置の断面図を示す。FIG. 1 shows a sectional view of an image forming apparatus equipped with an ozone removal device of the present invention.
図中１は回転軸１ａにより時計形りに回転する感光体ド
ラム、２は感光体ドラム１０表面を一様に帯電させるコ
ロナ放電装置、３は原稿に対応する光を感光体ドラムに
照射するための露光ランプであり、４は現像装置、５は
感光体ドラム１の表面ノトナー像ヲ転写紙に点やするた
めのコロナ放型装置、６は転写紙および感光体表面を除
電するために交流電圧を印加ずろ二１０ナ放電装置、７
は転写紙を定着装置８に搬送するヘルド、９は感光体ト
ラム１の表面を清掃するクリーニングユニットである。In the figure, 1 is a photoconductor drum that rotates clockwise around a rotating shaft 1a, 2 is a corona discharge device that uniformly charges the surface of the photoconductor drum 10, and 3 is a device for irradiating the photoconductor drum with light corresponding to the document. 4 is a developing device, 5 is a corona discharge device for illuminating the toner image on the surface of the photoreceptor drum 1 onto the transfer paper, and 6 is an AC voltage for eliminating static on the transfer paper and the surface of the photoreceptor. Applying the two 10n discharge device, 7
9 is a heald that conveys the transfer paper to the fixing device 8, and 9 is a cleaning unit that cleans the surface of the photoreceptor tram 1.
このような画像形成装置を作動させると、コロナ放電装
置２．５．６からオゾンが発生ずる。特に負に帯電する
時にオゾンが大量に発生ずる。例えばセレンのような正
帯電用の感光体を使用した場合には、コロナ放電装Ｗ２
．５よりも交流電圧が印加される除電用コロナ放電装置
６から大量にオゾンが発生ずることになる。このような
形成装置では第１図に示すように、搬送ヘルドの下にフ
ァン１０とオゾン除去装置２０を設けるごとにより最も
効率的にオゾンを排出できる。When such an image forming apparatus is operated, ozone is generated from the corona discharge device 2.5.6. Particularly when it becomes negatively charged, a large amount of ozone is generated. For example, when using a positively charged photoreceptor such as selenium, corona discharge device W2
．． A larger amount of ozone is generated from the static eliminating corona discharge device 6 to which an alternating current voltage is applied than from the case 5. In such a forming apparatus, as shown in FIG. 1, ozone can be discharged most efficiently by providing a fan 10 and an ozone removal device 20 under the conveyor heald.
第２図はオゾン除去装置の斜視図である。オゾン除去部
材２１はヘルド状に形成されており、２本のギア２２に
巻回され、ギア２２の回転に伴って移動するようになっ
ている。第３図はオゾン除去装置の断面図であり、第１
図ｘ−Ｘの断面に対応１−る。ファン１０で吸引された
オゾンを含有す分解する。劣化したオゾン除去部材３０
は着脱自在であり定着装置の熱源イ」近に設けた加熱部
に装着することができるようになっており、加熱するこ
とによって活性化することができる。FIG. 2 is a perspective view of the ozone removal device. The ozone removing member 21 is formed in a heald shape, is wound around two gears 22, and moves as the gears 22 rotate. FIG. 3 is a sectional view of the ozone removal device, and the first
1- corresponds to the cross-section of Figure XX. The ozone contained therein sucked in by the fan 10 is decomposed. Deteriorated ozone removal member 30
is removable and can be attached to a heating section provided near the heat source of the fixing device, and can be activated by heating.
第５図は画像形成装置の裏面からの斜視図である。搬送
ヘルド下のファン吸引された気体が排出口１１に設けた
オゾン除去部材３０を通って機外に排出されるようにな
っている。オゾン除去部材は着脱自在で定着装置付近に
もうけた加熱部に装着できる。定着装置イ」近に設けた
ファン３１はオゾン等を排出するものではなく定着装置
の熱が機内に入らないように設けたものであり常に熱風
が加熱部のオゾン除去部材に当たるようになる。第５図
に示すように予備フィルタ３２．３３を常に設けておい
て交換しながら使用すると効果的である。FIG. 5 is a perspective view of the image forming apparatus from the back side. The gas sucked in by the fan under the transport heald passes through an ozone removal member 30 provided at the discharge port 11 and is discharged to the outside of the machine. The ozone removal member is removable and can be attached to a heating section provided near the fixing device. The fan 31 provided near the fixing device A is not designed to discharge ozone or the like, but is provided to prevent the heat of the fixing device from entering the machine, so that hot air always hits the ozone removal member of the heating section. As shown in FIG. 5, it is effective to always provide preliminary filters 32 and 33 and use them while replacing them.
本発明によれば、オゾン除去効率の高く、オゾン除去部
材を有効に使用することができるオゾン除去装置を提供
することができる。According to the present invention, it is possible to provide an ozone removal device that has high ozone removal efficiency and can effectively use an ozone removal member.
る機内の空気は図中矢印に従ってオゾン除去物質に導か
れる。気中のオゾンはオゾン物質に吸収され、または分
解されて機外へ排出される。オゾン除去物質２１は、別
に設けたモータ２３によって回転するギア２２に従って
移動し、加熱部２４で加熱され吸収したオゾンを熱分解
し、また、オゾン除去物質に吸着した水分や異物を加熱
除去して再び活性になり排出口に移動する。The air inside the aircraft is guided to the ozone removal substance according to the arrows in the diagram. Ozone in the air is absorbed by ozone substances or decomposed and discharged outside the aircraft. The ozone removing substance 21 moves according to a gear 22 rotated by a separately provided motor 23, thermally decomposes the ozone that has been heated and absorbed by the heating section 24, and heats and removes moisture and foreign substances adsorbed on the ozone removing substance. It becomes active again and moves to the outlet.
このような構成にすることにより同量のオゾン除去部材
を全て排出口に設けた時に比べるとオゾン除去能力が長
時間に亘って衰えず、寿命もはるかに長くなった。With this configuration, the ozone removal ability does not decline over a long period of time and the lifespan is much longer than when the same amount of ozone removal members are all provided at the discharge ports.
第４図は着脱自在なオゾン除去装置を備えた画像形成装
置の断面の略図を示す。前述したものと同様に感光体ド
ラム１の周囲にコロナ放電装置２．５．６を備えたもの
でこれらのコロナ放電装置から発生したオゾンは搬送ベ
ルト８の下方に設けたファン１０で吸引し排気口を通っ
て機外に排出される。この排気口にオゾン除去部材３０
が設げられており、気体に含有されるオゾンを吸着また
はFIG. 4 shows a schematic cross-sectional view of an image forming apparatus equipped with a detachable ozone removal device. Similar to the one described above, a corona discharge device 2.5.6 is provided around the photoreceptor drum 1, and the ozone generated from these corona discharge devices is sucked in and exhausted by a fan 10 provided below the conveyor belt 8. It is ejected out of the machine through the mouth. An ozone removal member 30 is attached to this exhaust port.
is installed to adsorb or absorb ozone contained in the gas.
第１図は本発明のオゾン除去装置を備えた画像形成装置
の断面図、第２図は本発明のオゾン除去部材の実施例の
斜視図、第３図は本発明のオゾン除去装置の断面図、第
４図、第５図は本発明のオゾン除去装置を備えた画像形
成装置他の実施例を示す図である。
図中引照数字はそれぞれ以下の内容を表す。
２０−オゾン除去装置、
２１．３０−オゾン除去部材、
２４−加熱手段
特許出願人 三田工業株式会社FIG. 1 is a sectional view of an image forming apparatus equipped with an ozone removing device of the present invention, FIG. 2 is a perspective view of an embodiment of an ozone removing member of the present invention, and FIG. 3 is a sectional view of the ozone removing device of the present invention. , FIG. 4, and FIG. 5 are diagrams showing other embodiments of the image forming apparatus equipped with the ozone removal device of the present invention. The reference numbers in the figure represent the following contents. 20-Ozone removal device, 21.30-Ozone removal member, 24-Heating means patent applicant Sanda Kogyo Co., Ltd.
Claims (2)
ンを処理した後、該オゾン除去部材を加熱手段において
加熱して、該オゾン除去部材を再度使用可能にすること
を特徴とするオゾン除去方法。(1) An ozone removal method characterized in that after an ozone removal member provided near an ozone generation source processes ozone, the ozone removal member is heated by a heating means to make the ozone removal member usable again. .
源と加熱手段に対向するように循環させることを特徴と
するオゾン除去装置。(2) An ozone removal device characterized by circulating a continuously disposed ozone removal member so as to face an ozone generation source and a heating means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63303077A JPH02149314A (en) | 1988-11-30 | 1988-11-30 | Method and equipment for removing ozone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63303077A JPH02149314A (en) | 1988-11-30 | 1988-11-30 | Method and equipment for removing ozone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02149314A true JPH02149314A (en) | 1990-06-07 |
Family
ID=17916618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63303077A Pending JPH02149314A (en) | 1988-11-30 | 1988-11-30 | Method and equipment for removing ozone |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02149314A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07199749A (en) * | 1993-12-28 | 1995-08-04 | Sharp Corp | Image forming device |
| JP2008030503A (en) * | 2006-07-26 | 2008-02-14 | Kinugawa Rubber Ind Co Ltd | Mounting structure of weatherstrip for automobile |
-
1988
- 1988-11-30 JP JP63303077A patent/JPH02149314A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07199749A (en) * | 1993-12-28 | 1995-08-04 | Sharp Corp | Image forming device |
| JP2008030503A (en) * | 2006-07-26 | 2008-02-14 | Kinugawa Rubber Ind Co Ltd | Mounting structure of weatherstrip for automobile |
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