JPH10249334A - Automatic cleaning mechanism for light transmission tube of light irradiation device - Google Patents
Automatic cleaning mechanism for light transmission tube of light irradiation deviceInfo
- Publication number
- JPH10249334A JPH10249334A JP7462497A JP7462497A JPH10249334A JP H10249334 A JPH10249334 A JP H10249334A JP 7462497 A JP7462497 A JP 7462497A JP 7462497 A JP7462497 A JP 7462497A JP H10249334 A JPH10249334 A JP H10249334A
- Authority
- JP
- Japan
- Prior art keywords
- light
- transmitting tube
- light irradiation
- cleaning
- tube
- 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
- 238000004140 cleaning Methods 0.000 title claims abstract description 57
- 230000005540 biological transmission Effects 0.000 title description 4
- 239000007788 liquid Substances 0.000 claims abstract description 35
- 241000894006 Bacteria Species 0.000 claims abstract description 9
- 230000001954 sterilising effect Effects 0.000 claims abstract description 8
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 6
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000004809 Teflon Substances 0.000 claims abstract description 5
- 229920006362 Teflon® Polymers 0.000 claims abstract description 5
- 239000011737 fluorine Substances 0.000 claims abstract description 5
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 5
- 239000000126 substance Substances 0.000 claims description 16
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 12
- 229920006026 co-polymeric resin Polymers 0.000 claims description 10
- 238000000354 decomposition reaction Methods 0.000 claims description 4
- 238000006864 oxidative decomposition reaction Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000001678 irradiating effect Effects 0.000 description 6
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 5
- 239000011575 calcium Substances 0.000 description 5
- 229910052791 calcium Inorganic materials 0.000 description 5
- 239000010408 film Substances 0.000 description 5
- 239000011777 magnesium Substances 0.000 description 5
- 229910052749 magnesium Inorganic materials 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 238000002834 transmittance Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 230000002070 germicidal effect Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 230000003449 preventive effect Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 230000003252 repetitive effect Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 241000588724 Escherichia coli Species 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- UUAGAQFQZIEFAH-UHFFFAOYSA-N chlorotrifluoroethylene Chemical group FC(F)=C(F)Cl UUAGAQFQZIEFAH-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910001507 metal halide Inorganic materials 0.000 description 1
- 150000005309 metal halides Chemical class 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000006552 photochemical reaction Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/32—Details relating to UV-irradiation devices
- C02F2201/322—Lamp arrangement
- C02F2201/3223—Single elongated lamp located on the central axis of a turbular reactor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/32—Details relating to UV-irradiation devices
- C02F2201/324—Lamp cleaning installations, e.g. brushes
Landscapes
- Physical Water Treatments (AREA)
Abstract
(57)【要約】
【課題】 光照射ランプを内蔵した透光管に付着したス
ケールを液体の光照射処理中に剥離等の清掃を行うこと
によって、処理液体の純度を維持し、液体の光照射処理
の中断や装置の解体をせずに、液体の光照射処理効率を
向上させる。
【手段】 光照射ランプを内蔵した透光管を処理筒内に
挿填して、液体中の細菌の殺菌等の光照射処理を行う際
に、透光管の外部に設けた回転ネジ軸をモーター等の駆
動手段で正転および逆転させて、回転ネジ軸に螺動可能
に装填しているクリーニング体を透光管に沿って反復移
動させることによって、透光管に付着するスケールを剥
離等の清掃をする光照射装置において、透光管にフッ素
樹脂またはフッ素膜を被覆し、この透光管に付着するス
ケールをクリーニング体（テフロン製、突起付き）によ
って液体の光照射処理中に剥離等の清掃をする。
PROBLEM TO BE SOLVED: To maintain the purity of a treated liquid by cleaning the scale attached to a light-transmitting tube having a built-in light irradiation lamp, for example, by peeling off the scale during the light irradiation treatment of the liquid. The light irradiation efficiency of the liquid is improved without interrupting the irradiation process or dismantling the device. [MEANS FOR SOLVING PROBLEMS] When a light-transmitting tube having a built-in light-irradiating lamp is inserted into a processing tube and a light-irradiating process such as sterilization of bacteria in a liquid is performed, a rotating screw shaft provided outside the light-transmitting tube is used. By rotating the cleaning body that is screwably mounted on the rotary screw shaft along the light transmitting tube by rotating the cleaning device forward and backward by a driving means such as a motor, the scale attached to the light transmitting tube is peeled off. In a light irradiation device for cleaning, a transparent tube is coated with a fluororesin or a fluorine film, and scale attached to the transparent tube is peeled off by a cleaning body (made of Teflon, with projections) during liquid light irradiation processing. Cleaning.
Description
【０００１】[0001]
【発明の利用分野】本発明は、液体中の細菌の殺菌、有
機物の酸化分解、有害物質の分解等の光照射処理を行う
ことにより、細菌、有機物、有害物等の存在しない処理
液体を得る光照射装置の透光管の自動清掃機構に関する
もので、液体の光照射処理中に、光照射ランプを内蔵し
た透光管に付着したスケールを自動的に剥離等の清掃を
行うことに特徴がある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a treated liquid free of bacteria, organic substances, harmful substances, etc. by performing light irradiation treatment such as sterilization of bacteria in liquids, oxidative decomposition of organic substances, decomposition of harmful substances, and the like. This is related to an automatic cleaning mechanism for the light transmission tube of the light irradiation device, and is characterized in that the scale attached to the light transmission tube with the built-in light irradiation lamp is automatically cleaned, such as peeling, during the light irradiation treatment of the liquid. is there.
【０００２】[0002]
【従来の技術】従来、前述した光照射装置としては、光
照射ランプ、たとえば、紫外線ランプを石英ガラス製の
透光管を処理槽内に配設した構造のものであって、この
処理槽内に、細菌、有機物、有害物質等を含む液体を流
入させて、紫外線照射を行い、液体中の細菌の殺菌、有
機物の酸化分解、有害物質の分解処理等をすることによ
って、細菌、有機物、有害物等の存在しない処理液体を
得ていた。2. Description of the Related Art Conventionally, the above-mentioned light irradiating apparatus has a structure in which a light irradiating lamp, for example, an ultraviolet lamp is provided with a transparent tube made of quartz glass in a processing tank. Into the liquid containing bacteria, organic substances, harmful substances, etc., and irradiate with ultraviolet light to sterilize bacteria in the liquid, oxidatively decompose organic substances, decompose harmful substances, etc. In this case, a processing liquid free of any matter was obtained.
【０００３】しかし、この種の紫外線処理装置において
は、液体に対する紫外線照射処理を継続していると、紫
外線ランプを内蔵した透光管に、液体中のカルシウム、
マグネシュウム、鉄、アルミニウム、リン、有機物等が
付着してスケールとなるために、紫外線ランプの紫外線
透過率が低下し、処理液体の純度の低下、紫外線照射効
率の低下等の問題があった。[0003] However, in this type of ultraviolet processing apparatus, if the liquid is continuously irradiated with ultraviolet light, calcium in the liquid is added to the light-transmitting tube containing the ultraviolet lamp.
Magnesium, iron, aluminum, phosphorus, organic substances, and the like are attached to form scales, so that the ultraviolet ray transmittance of the ultraviolet lamp is reduced, the purity of the processing liquid is reduced, and the ultraviolet irradiation efficiency is reduced.
【０００４】従って、従来の紫外線処理装置において
は、紫外線処理を中断し、場合によっては紫外線処理装
置を解体し、スケールの付着した透光管を取り出し、人
手で剥離等の清掃作業を行っており、多大の時間と費用
を要し、紫外線処理効率の低下は避けられなかった。Therefore, in the conventional ultraviolet processing apparatus, the ultraviolet processing is interrupted, and in some cases, the ultraviolet processing apparatus is disassembled, the light-transmitting tube on which the scale is adhered is taken out, and cleaning work such as peeling is performed manually. This requires a great deal of time and money, and a decrease in the efficiency of ultraviolet treatment is inevitable.
【０００５】そこで、出願人会社の一社である株式会社
日本フォトサイエンスは、処理槽内に設けた光照射ラン
プ（紫外線ランプ）を内蔵した透光管に、ブラシまたは
スクレーパー等を取り付けたクリーニング体を摺動可能
に挿填し、スクリュー軸を回転させてクリーニング体を
透光管に沿って反復移動させることによって、透光管に
付着したスケールを自動的に剥離等の清掃をする自動清
掃機構を有する光照射装置（紫外線処理装置）を開発し
て、特許出願（実願平５−５５９８７号）を行ったが、
光照射ランプを内蔵させる透光管としては、石英ガラス
製のものであって、この光照射装置を実際に運転した結
果、使用状態によっては以下に述べるような問題がある
ことが判った。[0005] Therefore, Japan Photo Science Co., Ltd., one of the applicant companies, has developed a cleaning body in which a brush or a scraper is attached to a light-transmitting tube having a built-in light irradiation lamp (ultraviolet lamp) provided in a processing tank. Slidably inserted, the screw shaft is rotated, and the cleaning body is repeatedly moved along the light transmitting tube, thereby automatically removing the scale adhered to the light transmitting tube, for example, by automatically cleaning the surface. Developed a light irradiation device (ultraviolet treatment device) having the following, and filed a patent application (Japanese Utility Model Application No. 5-55987).
The light-transmitting tube in which the light irradiation lamp is built is made of quartz glass, and as a result of actually operating this light irradiation device, it has been found that there are the following problems depending on the use condition.
【０００６】すなわち、紫外線ランプを内蔵する石英ガ
ラス製の透光管を電子顕微鏡で観察すると、透光管に
０．５ｍｍ前後の歪みがあるとともに、透光管の表面に
０．５μｍ前後の凹凸があり、これらの歪みと凹凸のた
めに平滑性を損ない、ブラシまたはスクレーパー等のク
リーニング体によるスケールの剥離等の清掃が不完全に
なり、透光管の表面の凹みにスケールが残留する恐れが
あるとともに、クリーニング体の摺動に際して摩擦抵抗
の増大の原因となり、種々の故障の原因になっていた。That is, when an optical microscope is used to observe a quartz glass light-transmitting tube incorporating an ultraviolet lamp, the light-transmitting tube has a distortion of about 0.5 mm, and the surface of the light-transmitting tube has irregularities of about 0.5 μm. These distortions and irregularities impair the smoothness, and cleaning such as peeling of the scale by a cleaning body such as a brush or a scraper may be incomplete, and the scale may remain in the dent on the surface of the light transmitting tube. In addition, when the cleaning member slides, it causes an increase in frictional resistance and causes various failures.
【０００７】また、透光管に付着したスケールを電子顕
微鏡で観察すると、このスケールは膜厚１μｍの強固な
結晶構造をしており、特に、成分がカルシウム、マグネ
シュウム、鉄、アルミニウム、リン等よりなるスケール
は、一段と強固であって、ブラシまたはスクレーパー等
のクリーニング体によって簡単に擦るだけでは剥離等の
清掃ができず、さらに、クリーニング体の摺動の際の摩
擦抵抗を増大させる原因にもなっていた。When the scale attached to the light-transmitting tube is observed with an electron microscope, the scale has a strong crystal structure with a thickness of 1 μm. In particular, the component is composed of calcium, magnesium, iron, aluminum, phosphorus and the like. The scale is more robust and cannot be easily cleaned such as peeling off by simply rubbing with a cleaning body such as a brush or a scraper, and also causes an increase in frictional resistance when the cleaning body slides. I was
【０００８】他方、透光管に付着するスケール対策とし
ては、前述したブラシまたはスクレーパー等のクリーニ
ング体による物理的除去手段以外に、透光管の表面にス
ケールを付着させない予防手段が注目されており、たと
えば、実開昭５９−１１５４９４号（実願昭５８−８７
３５号）の液体殺菌装置においては、紫外線ランプを内
蔵する透光管として、石英ガラス製の内側管（７ａ）の
外面にクロロ・トリフルオロエチレン重合体の被覆樹脂
層（７ｂ）を融着した複層管（７）を形成して、この管
に汚れが付着し難くしたものである（明細書第３頁第１
２行〜第３頁下から第２行）。On the other hand, as a measure against scale adhering to the light-transmitting tube, attention has been paid to preventive means for preventing the scale from adhering to the surface of the light-transmitting tube, in addition to the above-mentioned physical removal means using a cleaning body such as a brush or a scraper. For example, Japanese Utility Model Laid-Open No. 59-115494 (Japanese Utility Model Application No. 58-87)
In the liquid sterilizer of No. 35), a coating resin layer (7b) of a chlorotrifluoroethylene polymer was fused to the outer surface of an inner tube (7a) made of quartz glass as a light-transmitting tube having a built-in ultraviolet lamp. A multi-layer tube (7) is formed to make it difficult for dirt to adhere to the tube (see page 3, page 1 of the specification).
2nd line to 2nd line from the bottom of page 3).
【０００９】同様な予防手段としては、たとえば、特開
平２−４８０９２号（特願昭６３−１９７１９０号）の
紫外線殺菌ランプの保護管においては、紫外線ランプを
内蔵する透光管として、石英保護管の外表面がフッ素樹
脂膜からなり（明細書第１頁第５行〜第６行）、従来技
術のように付着物が付着してから除去するのではなく
て、石英保護管への付着物が最小になるような、根本的
には付着物が付き難くするために、紫外線殺菌ランプを
保護する石英保護管の外表面を、フッ素樹脂で被覆し、
フッ素樹脂膜を形成するものである（明細書第２頁第１
２行〜下から第１行）。As a similar preventive measure, for example, in a protective tube of an ultraviolet germicidal lamp disclosed in Japanese Patent Application Laid-Open No. 2-48092 (Japanese Patent Application No. 63-197190), a quartz protective tube is used as a transparent tube having a built-in ultraviolet lamp. Is made of a fluororesin film (page 1, lines 5 to 6 in the specification). In order to minimize the adherence, the outer surface of the quartz protective tube that protects the UV germicidal lamp is coated with fluororesin,
This is to form a fluororesin film (see page 2, page 1
2 lines to the first line from the bottom).
【００１０】以上のべたように、２件のスケール対策と
しての予防手段は、いずれも、紫外線ランプを内蔵させ
る透光管にスケールを極力付着させないようにするもの
であるが、しかし、前述したように、液体に対する紫外
線照射処理を継続していると、紫外線ランプを内蔵した
透光管に、液体中のカルシウム、マグネシュウム、鉄、
アルミニウム、リン、有機物等のスケールが付着するこ
とは避けられず、スケールの付着に従って、紫外線ラン
プの紫外線透過率が低下し、処理液体の純度の低下する
ために、結局、紫外線処理を中断し、紫外線処理装置を
解体し、スケールの付着した透光管を取り出して剥離、
清掃等の清掃作業を行わざるを得なく、紫外線処理効率
の低下を招くことは、従来の場合と同様であった。As described above, the two preventive measures as measures against scale are to prevent the scale from adhering to the light-transmitting tube in which the ultraviolet lamp is built as much as possible. If the liquid is continuously irradiated with ultraviolet light, calcium, magnesium, iron,
It is inevitable that the scale of aluminum, phosphorus, organic matter, etc. adheres, and as the scale adheres, the UV transmittance of the UV lamp decreases and the purity of the processing liquid decreases, so the UV treatment is interrupted, Disassemble the UV treatment device, take out the light-transmitting tube with the scale attached, and peel it off.
As in the case of the related art, cleaning work such as cleaning has to be performed, and the ultraviolet light treatment efficiency is lowered.
【００１１】[0011]
【発明が解決しようとする課題】本発明は、光照射ラン
プを内蔵した透光管に付着したスケールを、液体の光照
射処理中に、自動的に、摩擦抵抗を極力低減して、剥離
等の清掃を完全に行い、処理液体の純度を維持すること
に目的がある。SUMMARY OF THE INVENTION According to the present invention, a scale adhered to a light-transmitting tube having a built-in light irradiating lamp is automatically removed as much as possible during the light irradiating treatment of the liquid, and the scale is peeled off. The purpose of this is to completely clean and maintain the purity of the processing liquid.
【００１２】また、本発明は、液体の光照射処理の中
断、装置の解体をすることなく、液体の連続的な光照射
処理を可能として、液体の光照射処理効率を向上させる
ことに目的がある。Another object of the present invention is to improve the efficiency of liquid light irradiation by enabling continuous light irradiation of the liquid without interrupting the light irradiation of the liquid or dismantling the apparatus. is there.
【００１３】[0013]
【課題を解決するための手段】本発明は、光照射装置の
透光管の自動清掃機構に関するもので、光照射ランプを
内蔵した透光管を処理筒内に挿填して、液体中の細菌の
殺菌、有機物の酸化分解、有害物質の分解等の光照射処
理を行う際に、透光管の外部に設けた回転ネジ軸をモー
ター等の駆動手段で正転および逆転させて、回転ネジ軸
に螺動可能に装填しているクリーニング体を透光管に沿
って反復移動させることによって、透光管に付着するス
ケールを剥離等の清掃をする光照射装置において、光照
射ランプを内蔵する透光管にフッ素樹脂またはフッ素膜
を被覆して、透光管に付着するスケールを、液体の光照
射処理中に、剥離等の清掃をすることに特徴がある。SUMMARY OF THE INVENTION The present invention relates to a mechanism for automatically cleaning a light transmitting tube of a light irradiating apparatus. When performing light irradiation processing such as sterilization of bacteria, oxidative decomposition of organic substances, decomposition of harmful substances, etc., the rotating screw shaft provided outside the light transmitting tube is rotated forward and reverse by a driving means such as a motor to rotate the rotating screw shaft. A light irradiation lamp is incorporated in a light irradiation apparatus that cleans a scale attached to the light transmitting tube by peeling off the scale by repeatedly moving the cleaning body screwably mounted on the shaft along the light transmitting tube. It is characterized in that the light-transmitting tube is coated with a fluororesin or a fluorine film, and the scale attached to the light-transmitting tube is cleaned or peeled off during the light irradiation treatment of the liquid.
【００１４】また、本発明は、前述した光照射装置の透
光管の自動清掃機構において、透光管に被覆するフッ素
樹脂またはフッ素膜として、テトラフロロエチレン−ヘ
キサフロロピレン共重合樹脂を被覆することによって、
透光管に付着するスケールを、液体の光照射処理中に、
容易に剥離等の清掃をすることに特徴がある。Further, according to the present invention, in the above-mentioned automatic cleaning mechanism for the light transmitting tube of the light irradiation apparatus, the fluororesin or the fluorine film coated on the light transmitting tube is coated with a tetrafluoroethylene-hexafluoropyrene copolymer resin. By
During the light irradiation treatment of the liquid,
It is characterized by easy cleaning such as peeling.
【００１５】さらに、本発明は、前述した光照射装置の
透光管の自動清掃機構において、クリーニング体とし
て、４フッ化エチレン−パーフロロアルキルビニルエー
テル共重合樹脂よりなるテフロン製のリングを使用する
ことによって、透光管に付着するスケールを、液体の光
照射処理中に、より容易に、摩擦抵抗を低減して、剥離
等の清掃をすることに特徴がある。Further, according to the present invention, in the above-described automatic cleaning mechanism for the light transmitting tube of the light irradiation device, a Teflon ring made of a tetrafluoroethylene-perfluoroalkylvinyl ether copolymer resin is used as a cleaning body. Thus, it is characterized in that the scale attached to the light transmitting tube is more easily cleaned during the light irradiation treatment of the liquid, by reducing the frictional resistance and peeling off.
【００１６】さらに、本発明は、前述した光照射装置の
透光管の自動清掃機構において、クリーニング体とし
て、４フッ化エチレン−パーフロロアルキルビニルエー
テル共重合樹脂よりなるテフロン製のリングを使用する
とともに、リングの両端であって、透光管に接する部分
に突起を形成することによって、透光管に付着するスケ
ールを、液体の光照射処理中に、より一段と容易に、摩
擦抵抗をより低減して、剥離等の清掃をすることに特徴
がある。Further, according to the present invention, in the above-mentioned automatic cleaning mechanism for the light transmitting tube of the light irradiation device, a Teflon ring made of a tetrafluoroethylene-perfluoroalkylvinyl ether copolymer resin is used as a cleaning body. By forming projections at both ends of the ring and in contact with the light-transmitting tube, the scale adhering to the light-transmitting tube can be more easily reduced during the light irradiation treatment of the liquid, and the frictional resistance can be further reduced. It is characterized by cleaning such as peeling.
【００１７】[0017]
【発明の実施の形態】本発明の自動清掃機構付の光照射
装置について説明をすると、図１に示すように、光照射
ランプとして、たとえば、紫外線ランプ１を石英ガラス
製の透光管２に内蔵させ、これを処理槽３内に配設し
て、紫外線照射装置を構成するが、本発明においては、
この石英ガラス製の透光管２の歪みと凹凸を解消し、平
滑性を向上し、摩擦抵抗を低減するために、透光管２の
表面にフッ素樹脂を被覆する。DESCRIPTION OF THE PREFERRED EMBODIMENTS A light irradiation apparatus with an automatic cleaning mechanism according to the present invention will be described. As shown in FIG. 1, for example, an ultraviolet lamp 1 is used as a light irradiation lamp in a light transmitting tube 2 made of quartz glass. The ultraviolet irradiation device is configured to be built in and disposed in the processing tank 3, and in the present invention,
The surface of the light-transmitting tube 2 is coated with a fluororesin in order to eliminate distortion and unevenness of the light-transmitting tube 2 made of quartz glass, improve smoothness, and reduce frictional resistance.
【００１８】透光管２の表面にフッ素樹脂を被覆するに
は、熱収縮性チューブ状のフッ素樹脂を透光管２の表面
に被せた後、これを加熱して収縮させたり、あるいは、
薄膜状のフッ素樹脂を透光管２の表面に張り合わせるな
ど、その他の公知の方法で行えばよい。In order to cover the surface of the light-transmitting tube 2 with a fluororesin, a heat-shrinkable tube-shaped fluororesin is coated on the surface of the light-transmitting tube 2 and then heated to shrink.
It may be performed by other known methods, such as laminating a thin-film fluororesin on the surface of the light transmitting tube 2.
【００１９】石英ガラス製の透光管２の表面に被覆する
フッ素樹脂としては、たとえば、テトラフロロエチレン
−ヘキサフロロピレン共重合樹脂（ＦＥＰ）) が最適で
あるが、これ以外にも、２５３．７ｎｍの紫外線を透過
し、紫外線によって劣化せず、適度な物理的強度を有す
るものであれば、どのようなものでもよく、被覆膜厚と
しては０．３〜０．５ｍｍの範囲内で十分である。As the fluororesin that covers the surface of the light transmitting tube 2 made of quartz glass, for example, tetrafluoroethylene-hexafluoropyrene copolymer resin (FEP) is most suitable. Any material may be used as long as it transmits 7 nm ultraviolet light, does not deteriorate by ultraviolet light, and has an appropriate physical strength, and the coating film thickness is in the range of 0.3 to 0.5 mm. It is.
【００２０】前述のフッ素樹脂を被覆した石英ガラス製
の透光管２（１本または複数本）を処理槽３内に配設し
て、液体中の細菌の殺菌、有機物の酸化分解、有害物質
の分解等の光照射処理を行う流路４を形成するが、この
透光管２には、クリーニング体５として、たとえば、４
フッ化エチレン−パーフロロアルキルビニルエーテル共
重合樹脂（ＰＦＡ）よりなるリング状のクリーニング体
５を嵌め込むとともに、このクリーニング体５の端部
を、処理槽内に設けた回転ネジ軸６に螺動可能に装填す
る。A transparent tube 2 (one or more) made of quartz glass coated with the above-mentioned fluororesin is disposed in the treatment tank 3 to sterilize bacteria in the liquid, oxidize and decompose organic substances, and remove harmful substances. A flow path 4 for performing a light irradiation treatment such as decomposition of the light is formed.
A ring-shaped cleaning body 5 made of fluorinated ethylene-perfluoroalkylvinyl ether copolymer resin (PFA) is fitted, and the end of the cleaning body 5 can be screwed to a rotary screw shaft 6 provided in a processing tank. To load.
【００２１】すなわち、回転ネジ軸６をモーター７によ
って正転および逆転させて、リング状のクリーニング体
５の内面を、透光管２の表面に接触して摺動し、上下に
反復移動させ、透光管２の表面に付着したスケールを剥
離等の清掃をして透光管２をクリーンアップするように
構成する。That is, the rotary screw shaft 6 is rotated forward and backward by the motor 7, and the inner surface of the ring-shaped cleaning body 5 is slid in contact with the surface of the light transmitting tube 2 to be repeatedly moved up and down. The scale attached to the surface of the light-transmitting tube 2 is cleaned by peeling or the like to clean up the light-transmitting tube 2.
【００２２】以上述べたクリーニング体５の反復移動に
よる紫外線透過筒２のスケールの剥離等の清掃は、紫外
線照射処理を行っている間、常時行ってもよいし、定期
的に間欠的に行ってもよく、また透光管２にスケールが
付着して処理効率が低下したことを確認して行ってもよ
い。The cleaning such as peeling of the scale of the ultraviolet ray transmitting tube 2 by the repetitive movement of the cleaning body 5 described above may be performed at all times during the ultraviolet irradiation process, or may be performed periodically and intermittently. Alternatively, it may be performed after confirming that the scale has adhered to the light transmitting tube 2 and the processing efficiency has been reduced.
【００２３】回転ネジ軸６の回転数、回転速度（正転・
逆転）は、透光管２と回転ネジ軸４の長さ、太さおよび
回転ネジ軸４のピッチ等の条件によって適宜決定する
が、通常の場合、回転数は１５０〜２５０回転にすると
よく、また回転速度は２０〜４０回転／毎分とするとよ
い。さらに、クリーニング体５の移動速度、反復回数
は、紫外線照射処理条件や紫外線透過筒２の汚染状態に
応じて適宜決定するが、通常の場合、移動速度は２０〜
３０ｃｍ／毎分、反復頻度は１〜３回数／ｈｒとするこ
とが望ましい。The rotation speed and rotation speed of the rotary screw shaft 6 (forward rotation
The reverse rotation) is appropriately determined depending on conditions such as the length and thickness of the light transmitting tube 2 and the rotary screw shaft 4 and the pitch between the rotary screw shaft 4 and the like. The rotation speed is preferably 20 to 40 rotations / minute. Further, the moving speed and the number of repetitions of the cleaning body 5 are appropriately determined according to the conditions of the ultraviolet irradiation treatment and the contamination state of the ultraviolet transmitting tube 2. In a normal case, the moving speed is 20 to
It is desirable that the repetition frequency is 30 cm / minute and the repetition frequency is 1 to 3 times / hr.
【００２４】紫外線ランプ１としては、主波長２５４ｎ
ｍの低圧殺菌ランプ、主波長１８５ｎｍ、２５４ｎｍの
低圧オゾンランプ、主波長１８５ｎｍ、２５４ｎｍ、３
６５ｎｍの中・高圧ランプを用いるとよく、また紫外線
ランプ１以外にも、光化学反応処理の目的に応じて、太
陽光ランプ、ケミカルランプ、ブラックライトランプ、
メタルハライドランプ、ナトリウムランプ、その他７０
０ｎｍ以下の波長を発する各種のランプを使用してもよ
い。The ultraviolet lamp 1 has a main wavelength of 254n.
m low pressure germicidal lamp, dominant wavelengths 185 nm, 254 nm low pressure ozone lamp, dominant wavelengths 185 nm, 254 nm, 3
A medium / high pressure lamp of 65 nm is preferably used, and in addition to the ultraviolet lamp 1, depending on the purpose of the photochemical reaction treatment, a solar lamp, a chemical lamp, a black light lamp,
Metal halide lamp, sodium lamp, other 70
Various lamps emitting a wavelength of 0 nm or less may be used.
【００２５】クリーニング体５のとしては、前述の４フ
ッ化エチレン−パーフロロアルキルビニルエーテル共重
合樹脂のリング状のものが適しているが、こがこれに限
らず、他の種類のテフロンのリング状のものでもよく、
場合によっては、セラミックまたはゴムのリング状のも
のでもよい。As the cleaning member 5, a ring-shaped one of the above-mentioned ethylene tetrafluoride-perfluoroalkylvinyl ether copolymer resin is suitable, but the present invention is not limited to this. May be
In some cases, it may be a ceramic or rubber ring.
【００２６】なお、クリーニング体５として、図２に示
すように、リングの両端であって、透光管２に接する部
分に突起８を形成することによって、透光管２の表面に
付着するスケールを、液体の光照射処理中に、一段と容
易に、摩擦抵抗を低減して、剥離等の清掃をすることが
でき、特に、リングをテフロン製にすることによって、
より一段と容易に、摩擦抵抗をより低減して、剥離等の
清掃をすることができる。As shown in FIG. 2, as the cleaning body 5, as shown in FIG. 2, by forming projections 8 on both ends of the ring and in contact with the light-transmitting tube 2, a scale attached to the surface of the light-transmitting tube 2 is formed. During the light irradiation treatment of the liquid, the frictional resistance can be more easily reduced, and the cleaning such as peeling can be performed.In particular, by making the ring made of Teflon,
Cleaning such as peeling can be more easily performed with reduced frictional resistance.
【００２７】[0027]
【実施例】本発明装置として、図１に示すような構造の
紫外線殺菌装置内に、２５４ｎｍ付近の紫外線を照射す
る６５ｗの紫外線ランプ（株式会社日本フォトサイエン
ス製ＡＹ−４）を内蔵した石英ガラス製の透過管を６本
配設するが、各透過管の表面にはテトラフロロエチレン
−ヘキサフロロピレン共重合樹脂（ＦＥＰ）を約０．５
ｍｍの被膜を形成するとともに、図２に示すような４フ
ッ化エチレン−パーフロロアルキルビニルエーテル共重
合樹脂製であって、両端に突起状のスクレーパーを形成
したリング状のクリーニング体を摺動可能に挿填した。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As an apparatus of the present invention, a quartz glass having a built-in 65 W ultraviolet lamp (AY-4 manufactured by Japan Photo Science Co., Ltd.) for irradiating an ultraviolet ray near 254 nm in an ultraviolet sterilizer having a structure as shown in FIG. 6 permeation tubes are provided, and tetrafluoroethylene-hexafluoropyrene copolymer resin (FEP) is coated on the surface of each permeation tube by about 0.5%.
2 mm, and a ring-shaped cleaning body made of a tetrafluoroethylene-perfluoroalkylvinyl ether copolymer resin as shown in FIG. Inserted.
【００２８】従来の比較装置として、前述の構造の紫外
線殺菌装置内に、２５４ｎｍ付近の紫外線を照射する６
５ｗの紫外線ランプ（株式会社日本フォトサイエンス製
ＡＹ−４）を内蔵した石英ガラス製の透過管を６本配設
するとともに、リング状のクリーニング体を摺動可能に
挿填した。As a conventional comparative device, an ultraviolet ray near 254 nm is irradiated into an ultraviolet sterilizer having the above-mentioned structure.
Six quartz glass transmission tubes incorporating a 5 w ultraviolet lamp (AY-4 manufactured by Japan Photo Science Co., Ltd.) were provided, and a ring-shaped cleaning body was slidably inserted.
【００２９】前述した本発明装置と従来の比較装置内
に、１０3 個／ｍｌの大腸菌類を含む下水二次処理水を
４０ｍ3 ／時の流速で流入させるとともに、回転ネジ軸
の回転数を約１６／毎分、クリーニング体の移動速度を
約８ｃｍ／毎分、反復頻度は約４回数／日の条件で紫外
線照射をして大腸菌類の殺菌を行い、大腸菌類１０0 〜
１０1 個／ｍｌの処理水を得た。Into the above-described apparatus of the present invention and the conventional comparison apparatus, secondary sewage water containing 10 3 cells / ml of Escherichia coli was introduced at a flow rate of 40 m 3 / hour, and the rotation speed of the rotary screw shaft was reduced. about 16 / min, about 8 cm / min the speed of movement of the cleaning member, repetitive frequency by the ultraviolet irradiation performed sterilization coliforms under conditions of about 4 times / day, coliforms 10 0
10 1 pieces / ml of treated water were obtained.
【００３０】本発明装置においては、前述した紫外線照
射処理を１年間継続しても下水二次処理水中のカルシウ
ム、マグネシュウム等のスケールが透光管に付着せず、
紫外線ランプの紫外線透過率も低下せず、所定の殺菌効
果を維持した。この時の処理コストは０．８円／ｍ3 と
安価であった。In the apparatus of the present invention, even if the above-described ultraviolet irradiation treatment is continued for one year, the scale of calcium, magnesium, etc. in the secondary sewage water does not adhere to the light transmitting tube.
The ultraviolet light transmittance of the ultraviolet lamp did not decrease, and a predetermined sterilizing effect was maintained. The processing cost at this time was as low as 0.8 yen / m 3 .
【００３１】これに対して、従来の比較装置において
は、前述した紫外線照射処理を２ケ月間継続した時点
で、紫外線照射処理継続中に液体中のカルシウム、マグ
ネシュウム等のスケールが透光管に付着し、紫外線ラン
プの紫外線透過率は７０％に低下し、処理水中の大腸菌
類も１０1 〜１０2 個／ｍｌと増加したため、１ケ月に
１回の割合で紫外線処理を中断して装置を解体し、スケ
ールの付着した透光管を取り出して剥離、清掃等の清掃
作業を行わざるを得なかった。そのために処理コストは
１．１４円／ｍ3 と高価であった。On the other hand, in the conventional comparison apparatus, when the above-described ultraviolet irradiation treatment is continued for two months, the scale of calcium, magnesium or the like in the liquid adheres to the light transmitting tube during the ultraviolet irradiation treatment. However, the UV transmittance of the UV lamp dropped to 70%, and the number of coliform bacteria in the treated water also increased to 10 1 to 10 2 / ml, so the UV treatment was interrupted once a month to dismantle the device. However, it was necessary to take out the light-transmitting tube to which the scale was attached and perform cleaning operations such as peeling and cleaning. Therefore, the processing cost was as high as 1.14 yen / m 3 .
【００３２】[0032]
【効果】以上述べたように、本発明においては、光照射
ランプを内蔵した透光管に付着したスケールを、液体の
光照射処理中に、自動的に、完全に剥離等の清掃を行
い、連続的な液体の光照射処理を継続しながら、所望の
殺菌処理を行うことが可能である。As described above, in the present invention, the scale attached to the light-transmitting tube having the built-in light irradiation lamp is automatically completely and completely cleaned during the light irradiation treatment of the liquid. It is possible to perform a desired sterilization treatment while continuing the continuous liquid light irradiation treatment.
【００３３】また、本発明によると、透光管の摩擦抵抗
を極力低減してスケールを除去できるために、従来行わ
れていたクリーニング体の摩耗による定期的な交換が不
要になる利点があり、かつ、液体の光照射処理を中断、
装置を解体することなく、透光管のスケールを除去でき
るため、光照射装置のランニングコストを２５〜３５％
削減することが可能であるなど液体の光照射処理効率を
向上させることが可能である。Further, according to the present invention, since the scale can be removed by minimizing the frictional resistance of the light-transmitting tube, there is an advantage that the regular replacement due to the wear of the cleaning body which has been conventionally performed becomes unnecessary. And interrupting the liquid light irradiation process,
Since the scale of the light transmitting tube can be removed without dismantling the device, the running cost of the light irradiation device can be reduced by 25 to 35%.
It is possible to improve the light irradiation efficiency of the liquid, for example, by reducing it.
【図１】紫外線ランプを内蔵した透光管にフッ素樹脂を
被覆し、この透光管にクリーニング体を摺動可能に嵌め
込んで、処理槽内に配設した紫外線殺菌筒の断面図であ
る。FIG. 1 is a cross-sectional view of an ultraviolet sterilizing tube in which a transparent tube having a built-in ultraviolet lamp is coated with a fluororesin, a cleaning body is slidably fitted into the transparent tube, and is disposed in a processing tank. .
【図２】両端に突起を形成したクリーニング体を紫外線
ランプを内蔵した透光管に摺動可能に挿填した状態を示
す断面図である。FIG. 2 is a cross-sectional view showing a state in which a cleaning body having projections formed at both ends is slidably inserted into a light transmitting tube having a built-in ultraviolet lamp.
１ 紫外線ランプ ２ フッ素樹脂を被覆した透光管 ３ 処理筒 ４ 流路 ５ クリーニング体 ６ 回転軸 ７ モーター ８ 突起 DESCRIPTION OF SYMBOLS 1 Ultraviolet lamp 2 Translucent tube coated with fluororesin 3 Processing cylinder 4 Flow path 5 Cleaning body 6 Rotating shaft 7 Motor 8 Projection
Claims (4)
内に挿填して、液体中の細菌の殺菌、有機物の酸化分
解、有害物質の分解等の光照射処理を行う際に、透光管
の外部に設けた回転ネジ軸をモーター等の駆動手段で正
転および逆転させて、回転ネジ軸に螺動可能に装填して
いるクリーニング体を透光管の外側面に沿って反復移動
させることによって、透光管に付着するスケールを剥離
等の清掃を行う光照射装置において、光照射ランプを内
蔵する透光管にフッ素樹脂またはフッ素膜を被覆し、透
光管に付着するスケールを液体の光照射処理中に剥離等
の清掃を行う光照射装置の透光管の自動清掃機構。1. A light-transmitting tube having a built-in light irradiation lamp inserted into a processing tube to perform light irradiation processing such as sterilization of bacteria in a liquid, oxidative decomposition of organic substances, and decomposition of harmful substances. The rotating screw shaft provided outside the light transmitting tube is rotated forward and backward by a driving means such as a motor, and the cleaning body which is screwably mounted on the rotating screw shaft is repeated along the outer surface of the light transmitting tube. In a light irradiator that cleans the scale attached to the light-transmitting tube by peeling it by moving it, the light-transmitting tube containing the light irradiation lamp is coated with a fluororesin or a fluorine film, and the scale attached to the light-transmitting tube is removed. An automatic cleaning mechanism for the light-transmitting tube of the light irradiator that performs cleaning such as peeling during the light irradiation treatment of the liquid.
素膜として、テトラフロロエチレン−ヘキサフロロピレ
ン共重合樹脂を被覆する請求項１記載の光照射装置の透
光管の自動清掃機構。2. The automatic cleaning mechanism for a light-transmitting tube of a light irradiation device according to claim 1, wherein the fluororesin or the fluorine film coated on the light-transmitting tube is coated with a tetrafluoroethylene-hexafluoropyrene copolymer resin.
ン−パーフロロアルキルビニルエーテル共重合樹脂より
なるテフロン製のリングを使用する請求項１または請求
項２記載の光照射装置の透光管の自動清掃機構。3. A mechanism for automatically cleaning a light-transmitting tube of a light irradiation device according to claim 1, wherein a Teflon ring made of a tetrafluoroethylene-perfluoroalkylvinyl ether copolymer resin is used as the cleaning body. .
あって透光管に接する部分に突起を形成する請求項３記
載の光照射装置の透光管の自動清掃機構。4. The automatic cleaning mechanism for a light-transmitting tube of a light irradiation device according to claim 3, wherein projections are formed at both ends of the ring and in contact with the light-transmitting tube as the cleaning body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7462497A JPH10249334A (en) | 1997-03-12 | 1997-03-12 | Automatic cleaning mechanism for light transmission tube of light irradiation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7462497A JPH10249334A (en) | 1997-03-12 | 1997-03-12 | Automatic cleaning mechanism for light transmission tube of light irradiation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10249334A true JPH10249334A (en) | 1998-09-22 |
Family
ID=13552541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7462497A Pending JPH10249334A (en) | 1997-03-12 | 1997-03-12 | Automatic cleaning mechanism for light transmission tube of light irradiation device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10249334A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030046088A (en) * | 2001-12-05 | 2003-06-12 | 주식회사 성광엔비텍 | A pipe cleaner and ultraviolet disinfect device using of it |
| GB2389577A (en) * | 2002-06-13 | 2003-12-17 | Malcolm Robert Snowball | Fluid treatment apparatus comprising UV lamps and means for cleaning said lamps |
| US6911655B2 (en) | 2002-06-13 | 2005-06-28 | Malcolm Robert Snowball | Fluid treatment apparatus |
| CN1305775C (en) * | 1999-06-21 | 2007-03-21 | 通达商业集团国际公司 | Local used type water treatment system for treatment of water |
| JP2012210571A (en) * | 2011-03-31 | 2012-11-01 | Iwasaki Electric Co Ltd | Method for treating fluid of ultraviolet treatment apparatus, and ultraviolet treatment apparatus |
| JP2014500137A (en) * | 2010-10-26 | 2014-01-09 | エンパイア テクノロジー ディベロップメント エルエルシー | Water treatment equipment and system |
| JP2015174026A (en) * | 2014-03-14 | 2015-10-05 | 日機装株式会社 | light irradiation device |
| CN117696502A (en) * | 2023-12-28 | 2024-03-15 | 江苏远燕医疗设备有限公司 | Ultraviolet disinfection and sterilization device |
-
1997
- 1997-03-12 JP JP7462497A patent/JPH10249334A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1305775C (en) * | 1999-06-21 | 2007-03-21 | 通达商业集团国际公司 | Local used type water treatment system for treatment of water |
| KR20030046088A (en) * | 2001-12-05 | 2003-06-12 | 주식회사 성광엔비텍 | A pipe cleaner and ultraviolet disinfect device using of it |
| GB2389577A (en) * | 2002-06-13 | 2003-12-17 | Malcolm Robert Snowball | Fluid treatment apparatus comprising UV lamps and means for cleaning said lamps |
| US6911655B2 (en) | 2002-06-13 | 2005-06-28 | Malcolm Robert Snowball | Fluid treatment apparatus |
| GB2389577B (en) * | 2002-06-13 | 2005-09-14 | Malcolm Robert Snowball | Fluid treatment apparatus |
| JP2014500137A (en) * | 2010-10-26 | 2014-01-09 | エンパイア テクノロジー ディベロップメント エルエルシー | Water treatment equipment and system |
| JP2012210571A (en) * | 2011-03-31 | 2012-11-01 | Iwasaki Electric Co Ltd | Method for treating fluid of ultraviolet treatment apparatus, and ultraviolet treatment apparatus |
| JP2015174026A (en) * | 2014-03-14 | 2015-10-05 | 日機装株式会社 | light irradiation device |
| CN117696502A (en) * | 2023-12-28 | 2024-03-15 | 江苏远燕医疗设备有限公司 | Ultraviolet disinfection and sterilization device |
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| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20020326 |