JPH10249335A - Automatically cleaning mechanism for light transmitting tube of open-type photoirradiation device - Google Patents
Automatically cleaning mechanism for light transmitting tube of open-type photoirradiation deviceInfo
- Publication number
- JPH10249335A JPH10249335A JP9074623A JP7462397A JPH10249335A JP H10249335 A JPH10249335 A JP H10249335A JP 9074623 A JP9074623 A JP 9074623A JP 7462397 A JP7462397 A JP 7462397A JP H10249335 A JPH10249335 A JP H10249335A
- Authority
- JP
- Japan
- Prior art keywords
- light
- transmitting tube
- tube
- scale
- scraper
- 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 description 40
- 230000007246 mechanism Effects 0.000 title claims description 17
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000011737 fluorine Substances 0.000 claims abstract description 4
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 40
- 239000000126 substance Substances 0.000 claims description 27
- 241000894006 Bacteria Species 0.000 claims description 13
- 239000004809 Teflon Substances 0.000 claims description 9
- 229920006362 Teflon® Polymers 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 3
- 230000007423 decrease Effects 0.000 abstract description 4
- 238000000151 deposition Methods 0.000 abstract 2
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000007790 scraping Methods 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 11
- 230000001678 irradiating effect Effects 0.000 description 11
- 238000002834 transmittance Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 230000001954 sterilising effect Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 239000010865 sewage Substances 0.000 description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 4
- 239000011575 calcium Substances 0.000 description 4
- 229910052791 calcium Inorganic materials 0.000 description 4
- 229920006026 co-polymeric resin Polymers 0.000 description 4
- 239000011777 magnesium Substances 0.000 description 4
- 229910052749 magnesium Inorganic materials 0.000 description 4
- 238000004659 sterilization and disinfection Methods 0.000 description 4
- 238000009281 ultraviolet germicidal irradiation 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
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 238000006864 oxidative decomposition reaction Methods 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
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000005021 gait Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000000926 separation method Methods 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
- 244000043261 Hevea brasiliensis Species 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
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- UUAGAQFQZIEFAH-UHFFFAOYSA-N chlorotrifluoroethylene Chemical group FC(F)=C(F)Cl UUAGAQFQZIEFAH-UHFFFAOYSA-N 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229910001507 metal halide Inorganic materials 0.000 description 1
- 150000005309 metal halides Chemical class 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
- C02F1/325—Irradiation devices or lamp constructions
-
- 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
Abstract
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
液体を得る開放式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枠体に
着脱可能に取り付け、この光照射モジュールをハウジン
グ内に着脱可能な一体のユニットとして組み立て、透光
管の表面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機構を付設したことに特徴があ
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. It is related to the automatic cleaning mechanism of the light-transmitting tube of the open-type light irradiation device. The light-transmitting tube with the built-in light irradiation lamp is detachably attached to the frame body. It is characterized in that a mechanism for cleaning, such as peeling off, the scale attached to the surface of the light transmitting tube during the light irradiation treatment of the liquid is provided.
【０００２】[0002]
【従来の技術】従来、前述した開放式光照射装置におい
ては、光照射ランプとして、たとえば、紫外線ランプを
内蔵した石英ガラス製の透光管を枠体に着脱可能に取り
付けて紫外線照射モジュールを形成し、この紫外線照射
モジュールをハウジング内に着脱可能な一体のユニット
として組み立てて使用することが多く、開放水路型の下
水等の被処理液を処理する場合には、このユニット化し
た紫外線照射モジュールよりなる紫外線処理装置を、開
放水路型の下水等の被処理液中に浸漬し、被処理液中の
細菌、有機物、有害物質等に対し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, in the above-mentioned open-type light irradiating apparatus, an ultraviolet irradiating module is formed by detachably attaching a quartz glass transparent tube having a built-in ultraviolet lamp as a light irradiating lamp to a frame. However, in many cases, the ultraviolet irradiation module is assembled and used as an integral unit that can be attached to and detached from the housing. In the case of treating a liquid to be treated, such as open channel type sewage, the unitized ultraviolet irradiation module is used. UV treatment equipment, immersed in a liquid to be treated such as open channel type sewage, and irradiate bacteria, organic substances, harmful substances, etc. in the liquid to be treated with ultraviolet rays,
A treated liquid free of bacteria, organic substances, harmful substances, etc. has been obtained by sterilizing bacteria in liquids, oxidatively decomposing organic substances, decomposing harmful substances, and the like.
【０００３】しかし、この種の開放式紫外線処理装置に
おいては、被処理液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の表面に、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（以後スケールという）が付
着するために、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。However, in this type of open type ultraviolet processing apparatus, if the liquid to be processed is continuously irradiated with ultraviolet light, calcium, magnesium, iron, and the like contained in the liquid are deposited on the surface of the light transmitting tube having the built-in ultraviolet lamp. ,aluminum,
Since the scale of phosphorus and organic substances (hereinafter referred to as scale) adheres, the ultraviolet transmittance of the ultraviolet lamp decreases,
There are problems such as a reduction in the purity of the processing liquid and a reduction in the ultraviolet irradiation efficiency.
【０００４】従って、従来の開放式紫外線処理装置にお
いては、透光管に付着したスケールを紫外線照射処理中
に自動的に剥離する清掃機構が付設されていないことが
多く、紫外線照射処理を中断し、開放式紫外線処理装置
を解体して、ユニット化した紫外線照射モジュールを引
き上げ、枠体に取り付けられているスケールの付着した
透光管の一本、一本を取り出し、人手で剥離等の清掃を
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 open type ultraviolet treatment apparatus, there is often no cleaning mechanism for automatically peeling off the scale adhered to the light transmitting tube during the ultraviolet irradiation treatment. Disassemble the open-type UV treatment device, pull up the unitized UV irradiation module, take out one of the light-transmitting tubes with scale attached to the frame, and remove it manually to clean it. This requires a great deal of time and money, and a reduction in the efficiency of ultraviolet treatment is inevitable.
【０００５】なお、現在、実験的に使用されている開放
式紫外線処理装置には、密閉式筒内に設けた紫外線ラン
プを内蔵した一本の透光管を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の表面
に沿って反復移動させることによって、透光管の表面に
付着したスケールを紫外線照射処理中に自動的に剥離す
るものがあった。[0005] Currently, an open type ultraviolet processing apparatus which is experimentally used includes a single light-transmitting tube having a built-in ultraviolet lamp provided in a sealed cylinder and a cleaning member having a brush or a scraper attached thereto. Is slidably inserted, and by rotating the screw shaft to repeatedly move the cleaning body along the surface of the light transmitting tube, the scale attached to the surface of the light transmitting tube is automatically removed during the ultraviolet irradiation treatment. Some peeled off.
【０００６】しかし、この種の紫外線処理装置は、透光
管に設けたスクリュー軸とブラシまたはスクレーパー等
のクリーニング体とが一体的に連動する機構になってお
り、スケールが付着して紫外線照射効率の低下した透光
管や切断した紫外線ランプを交換する場合には、紫外線
処理装置のハウジングを解体した後、透光管と一体にな
っているスクリュー軸とブラシ等を取り付けたクリーニ
ング体を取り出し、透光管よりスケールを剥離等の清掃
を行ったり、紫外線ランプを透光管より取り出して交換
しており、大変に面倒な作業を要し、処理効率の悪いも
のであった。However, this type of ultraviolet treatment apparatus has a mechanism in which a screw shaft provided in a light transmitting tube and a cleaning body such as a brush or a scraper are integrally linked, and a scale adheres to the ultraviolet irradiation efficiency. When replacing a translucent tube or a cut ultraviolet lamp that has been lowered, disassemble the housing of the ultraviolet processing device, then take out the cleaning body with the screw shaft and brush etc. integrated with the translucent tube, Cleaning such as peeling off the scale from the light-transmitting tube, and taking out and replacing the ultraviolet lamp from the light-transmitting tube required very troublesome work, resulting in poor processing efficiency.
【０００７】また、前述した従来のクリーニング体を用
いた自動清掃機構を有する密閉式紫外線照射筒は、紫外
線ランプを内蔵させた一本の透光管を装置内に配設し、
この一本の透光管に付着したスケールを自動的に剥離等
の清掃を行うものであって、紫外線ランプを内蔵させた
透光管の複数本をモジュールとしてハウジング内にユニ
ットとして着脱可能に組み込み、これらの複数本の透光
管に付着したスケールを同時に紫外線照射処理中に自動
的に剥離等の清掃をするものはなく、また、この種の密
閉式紫外線照射筒は処理流量が小さく、下水等を処理す
る場合には筒内面にスケールを始めとする汚染物質が付
着するために問題があった。The above-mentioned conventional closed-type ultraviolet irradiation tube having an automatic cleaning mechanism using a cleaning body is provided with a single light-transmitting tube having a built-in ultraviolet lamp inside the apparatus.
The scale attached to this single light-transmitting tube is automatically cleaned by peeling off, etc., and a plurality of light-transmitting tubes with built-in ultraviolet lamps are removably assembled as a unit in the housing as a module. However, there is nothing that automatically cleans the scales adhered to the plurality of light-transmitting tubes such as peeling off during the ultraviolet irradiation process at the same time, and this type of closed type ultraviolet irradiation tube has a small processing flow rate and sewage. When processing such as, there is a problem because contaminants such as scale adhere to the inner surface of the cylinder.
【０００８】そこで、出願人会社である株式会社日本フ
ォトサイエンスは、光照射ランプ（紫外線ランプ）を内
蔵させた透光管の複数本をモジュールとしてハウジング
内にユニットとして組み込み、光照射処理中に、各透光
管を同時に自動的に剥離等の清掃をするブラシまたはス
クレーパー等の清掃具を用いた自動清掃機構を有する開
放式光照射装置（開放式紫外線処理装置）を開発して、
特許出願（特願平７−７９３４９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。Therefore, Japan Photo Science Co., Ltd., which is the applicant company, incorporated a plurality of light-transmitting tubes incorporating a light irradiation lamp (ultraviolet lamp) as a unit in a housing as a module, and during light irradiation processing, Developed an open-type light irradiation device (open-type ultraviolet treatment device) with an automatic cleaning mechanism using a cleaning tool such as a brush or a scraper that automatically cleans each light-transmitting tube at the same time.
Although a patent application (Japanese Patent Application No. 7-79349) was filed, the light-transmitting tube incorporating the light irradiation lamp is made of quartz glass, and as a result of actually operating this device, depending on the use condition, It turned out that there was a problem as described below.
【０００９】すなわち、石英ガラス製の透光管の表面に
付着したスケールをブラシまたはスクレーパー等の単純
な清掃具を用いて完全に剥離等の清掃をすることは困難
であって、紫外線照射処理の継続中に次第に透光管にス
ケールが蓄積して行き、紫外線透過率が低下することは
避けられなかった。That is, it is difficult to completely remove the scale adhered to the surface of the quartz glass light-transmitting tube using a simple cleaning tool such as a brush or a scraper. During the continuation, it was inevitable that the scale gradually accumulated in the light-transmitting tube and the UV transmittance decreased.
【００１０】特に、石英ガラス製の透光管の表面には
０．５μｍ前後の凹凸と０．５ｍｍ前後の歪みがあるた
めに、透光管の表面にスケールが付着し易く、また透光
管の表面に付着したスケールをブラシまたはスクレーパ
ー等の清掃具によって剥離等の清掃も行い難いばかり
か、これらの凹凸と歪みによって透光管の表面の平滑性
と摺動性を損ない、ブラシまたはスクレーパー等の清掃
具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。In particular, since the surface of the light transmitting tube made of quartz glass has irregularities of about 0.5 μm and distortion of about 0.5 mm, scale easily adheres to the surface of the light transmitting tube. It is not only difficult to clean the scale adhered to the surface by peeling off with a cleaning tool such as a brush or a scraper, but also the surface smoothness and slidability of the light-transmitting tube are impaired due to these irregularities and distortion, and a brush or a scraper, etc. This causes an increase in frictional resistance when the cleaning tool slides, causing various failures.
【００１１】また、透光管の表面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、スケールの成分がカ
ルシウム、マグネシュウム、鉄、アルミニウム、リン等
である場合には、スケールは一段と強固になり、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はできず、紫外線照射効率の
低下を招くとともに、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なっていた。When the scale attached to the surface of the light-transmitting tube is observed with an electron microscope, the scale has a strong crystal structure with a film thickness of 1 μm. In particular, the components of the scale are calcium, magnesium, iron and aluminum. In the case of phosphorus, phosphorus, etc., the scale becomes even stronger, and cleaning such as peeling cannot be performed by simply rubbing with a cleaning body such as a brush or a scraper. This caused an increase in frictional resistance during movement.
【００１２】透光管の表面に付着するスケール対策とし
ては、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５９−１１５４９
４号（実願昭５８−８７３５号）の流体殺菌装置におい
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、この管の表面に汚れが付着し難くす
る技術も存在する（明細書第３頁第１２行〜第３頁下か
ら第２行）。As a measure against the scale adhering to the surface of the light-transmitting tube, attention has been paid to preventive measures for preventing the scale from adhering to the surface of the light-transmitting tube.
In the fluid sterilizer of No. 4 (Japanese Utility Model Application No. 58-8735), a chloro-trifluoroethylene polymer-coated resin is applied to the outer surface of an inner tube (7a) made of quartz glass as a light-transmitting tube having a built-in ultraviolet lamp. There is also a technique for forming a multi-layer tube (7) in which the layer (7b) is fused so as to make it difficult for dirt to adhere to the surface of the tube (from page 3, line 12 to page 3, from bottom to page 3). 2 lines).
【００１３】同様な予防手段として、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にフッ素樹脂
膜を形成するもので（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、石英保護管への付着物の付着量を最小にする、す
なわち、根本的には付着物が付き難くする技術であった
（明細書第２頁第１２行〜下から第１行）。As a similar preventive measure, for example, in a protective tube of an ultraviolet sterilizing 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. A fluororesin film is formed on the outer surface (page 1, line 5 to line 6 in the specification),
Rather than removing the deposits after they adhere as in the prior art, this technique minimizes the amount of deposits on the quartz protective tube, that is, fundamentally makes the deposits less likely to adhere ( Specification, page 2, line 12 to bottom line 1).
【００１４】以上のべた二つ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
の表面にスケールを極力付着させないようにするもので
あり、前述したように、被処理液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の
表面に、被処理液中のスケールが付着することは避けら
れず、スケールの蓄積に従って、紫外線ランプの紫外線
透過率が低下し、処理液体の純度が低下するために、結
局、紫外線照射処理を中断し、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。The above two preventive measures as measures against scale are to prevent the scale from adhering to the surface of the light transmitting tube in which the ultraviolet lamp is built as much as possible. If the UV irradiation treatment is continued, it is inevitable that the scale in the liquid to be treated adheres to the surface of the light-transmitting tube containing the UV lamp, and the UV transmittance of the UV lamp increases as the scale accumulates. In order to reduce the purity of the processing liquid, the UV irradiation process must be interrupted, the UV processing device must be disassembled, the light-transmitting tube with scale attached must be taken out, and cleaning work such as peeling must be performed. The decrease in the efficiency of ultraviolet treatment was the same as in the conventional case.
【００１５】[0015]
【発明が解決しようとする課題】本発明は、開放式光照
射装置のユニット化した光照射モジュールの枠体に取り
付けた光照射ランプを内蔵した透光管の平滑性を高める
ことによって、被処理液の光照射処理を行っている間、
透光管にスケールを付着し難くするとともに、また、平
滑性を高めた透光管にスケールが付着した場合には、被
処理液の光照射処理中に、自動的に、スケールをテフロ
ン製等のリング状のスクレーパーで剥離性を高めて、摩
擦抵抗を極力低減して、スムースにスケールの剥離等の
清掃を行い、処理液体の純度を所定の値に維持すること
に目的がある。SUMMARY OF THE INVENTION An object of the present invention is to improve the smoothness of a light-transmitting tube having a built-in light irradiation lamp mounted on a frame of a light irradiation module, which is a unit of an open-type light irradiation device. During the light irradiation treatment of the liquid,
In addition to making it difficult for the scale to adhere to the light-transmitting tube, and if the scale adheres to the light-transmitting tube with improved smoothness, the scale is automatically made of Teflon or the like during the light irradiation treatment of the liquid to be treated. It is an object of the present invention to enhance the peeling property by using the ring-shaped scraper, reduce the frictional resistance as much as possible, smoothly perform the cleaning such as the peeling of the scale, and maintain the purity of the processing liquid at a predetermined value.
【００１６】また、本発明は、開放式光照射装置のユニ
ット化した光照射モジュールの枠体に取り付けた光照射
ランプを内蔵した透光管について、被処理液の光照射処
理の中断、装置の解体をして、スケールの付着した透光
管を個々に取り出してスケールの剥離等の清掃を行うこ
となく、被処理液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飛躍的に向上させることに目的
がある。Further, the present invention relates to a light-transmitting tube having a built-in light irradiation lamp attached to a frame of a light irradiation module, which is a unitized open-type light irradiation device, for interrupting light irradiation processing of a liquid to be treated, Disassembling, without taking out the individual light-transmitting tubes with scale attached and cleaning such as peeling of scale, enables continuous light irradiation treatment of the liquid to be treated,
The purpose is to dramatically improve the light irradiation processing efficiency of a liquid.
【００１７】さらに、本発明は、開放式光照射装置にお
いてスクリュー軸等の移動手段に付設したスクリューナ
ット等の移動体（ガイト、サポーター）にリング状のス
クレーパーとを着脱可能に取り付け、リング状のスクレ
ーパーと移動体の分離を簡単、容易にし、光照射ランプ
を内蔵した複数本の透光管よりなる光照射モジュール
を、着脱可能な一体のユニットとして、ワンタッチで、
短時間に、開放式光照射装置より取り出したり、充填し
て、開放式光照射装置の製作、修理、点検等のコストを
安価にすることに目的がある。Further, in the present invention, a ring-shaped scraper is detachably attached to a moving body (gait, supporter) such as a screw nut attached to a moving means such as a screw shaft in an open-type light irradiating apparatus. Easy and easy separation of the scraper and the moving object, the light irradiation module consisting of a plurality of light-transmitting tubes with built-in light irradiation lamps, as a detachable integrated unit, with one touch,
It is an object of the present invention to take out or fill an open-type light irradiation device in a short time to reduce the costs of manufacturing, repairing, inspecting, and the like of the open-type light irradiation device.
【００１８】さらに、本発明は、光照射モジュールの複
数個の透光管のうち、切断または毀損した光照射ランプ
を交換する場合に、光照射ランプを一本一本取り出して
交換を行うことなく、光照射ランプを内蔵した複数本の
透光管よりなる光照射モジュールを、着脱可能な一体の
ユニットとして、ハウジングより簡単に取り出し、切断
または毀損した光照射ランプを枠体より容易に、短時間
に交換することに目的がある。Further, according to the present invention, when replacing a cut or damaged light irradiation lamp among a plurality of light transmitting tubes of a light irradiation module, the light irradiation lamps need not be taken out one by one and replaced. The light irradiation module consisting of a plurality of light-transmitting tubes with a built-in light irradiation lamp can be easily removed from the housing as a detachable integrated unit, and the cut or damaged light irradiation lamp can be more easily and quickly cut off from the frame. The purpose is to exchange.
【００１９】[0019]
【課題を解決するための手段】本発明は、開放式光照射
装置の透光管の自動清掃機構に関するものであり、光照
射ランプを内蔵する透光管の表面にフッ素樹脂またはフ
ッ素膜を被覆して透光管の平滑性を高め、この透光管の
複数本によって光照射モジュールを形成するとともに、
この光照射モジュールの複数個をハウジング内に着脱可
能な一体のユニットとして組み立てて、流体中の細菌の
処理等の光照射処理を行う流路を形成し、また、ハウジ
ングに付設したスクリュー軸等の移動手段にスクリュー
ナット等の移動体を付設し、移動体を透光管の表面に近
接して挿填するとともに、この移動体に透光管の外面に
沿って摺動するリング状のスクレーパーを着脱可能に取
り付け、液体の光照射処理中に、スケールの付着を極力
防止するとともに、透光管の表面に付着したスケール
を、リング状のスクレーパーの剥離性を高め、摺動の際
の摩擦抵抗を極力低減して、剥離等の清掃を行うことに
特徴がある。SUMMARY OF THE INVENTION The present invention relates to an automatic cleaning mechanism for a light-transmitting tube of an open-type light irradiating apparatus, in which a surface of a light-transmitting tube having a built-in light irradiating lamp is coated with a fluorine resin or a fluorine film. To improve the smoothness of the light-transmitting tube, and form a light irradiation module with a plurality of the light-transmitting tubes,
A plurality of the light irradiation modules are assembled as an integral unit detachable in a housing to form a flow path for performing light irradiation processing such as treatment of bacteria in a fluid, and a screw shaft or the like attached to the housing. A moving body such as a screw nut is attached to the moving means, and the moving body is inserted close to the surface of the light transmitting tube, and a ring-shaped scraper sliding along the outer surface of the light transmitting tube is attached to the moving body. Removably mounted to prevent the adhesion of scale during liquid light irradiation treatment, and to remove the scale adhering to the surface of the light-transmitting tube, improve the peelability of the ring-shaped scraper, and reduce the frictional resistance during sliding. It is characterized in that cleaning such as peeling is performed by minimizing the pressure.
【００２０】さらに、本発明は、前述した開放式光照射
装置の透光管の自動清掃機構において、リング状スクレ
ーパーとして、テフロン製、特に、テフロン製のリング
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、スケールの剥離性を高めるとともに、ス
クレーパーの摺動の際の摩擦抵抗を一層低減することに
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 open-type light irradiating apparatus, the ring-shaped scraper is made of Teflon, particularly, both ends of a Teflon-made ring. By forming projections in contact with each other, the releasability of the scale is enhanced, and the frictional resistance during sliding of the scraper is further reduced.
【００２１】[0021]
【発明の実施の形態】本発明の自動清掃機構付の光照射
モジュールよりなる開放式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
せるが、本発明においては、この石英ガラス製の透光管
２の表面にフッ素樹脂を被覆して透光管２の表面の歪み
と凹凸を解消し、透光管２の表面の平滑性を向上させ
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS An open-type light irradiating apparatus comprising a light irradiating module with an automatic cleaning mechanism according to the present invention will be described. As shown in FIG. In the present invention, the surface of the light transmitting tube 2 made of quartz glass is coated with a fluororesin to eliminate distortion and unevenness of the surface of the light transmitting tube 2. The smoothness of the surface of the tube 2 is improved.
【００２２】紫外線ランプ１としては、主波長２５４ｎ
ｍの低圧紫外線ランプ、主波長１８５ｎｍ、２５４ｎｍ
の低圧紫外線ランプ、主波長１８５ｎｍ、２５４ｎｍ、
３６５ｎｍの中・高圧紫外線ランプを使用するとよく、
また紫外線ランプ以外にも、紫外線化学反応処理の目的
に応じて、太陽紫外線ランプ、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７００ｎｍ以下の波長を発する各種のラン
プを光照射ランプとして使用できる。The ultraviolet lamp 1 has a main wavelength of 254n.
m low-pressure ultraviolet lamp, main wavelength 185 nm, 254 nm
Low-pressure ultraviolet lamp, dominant wavelengths 185 nm, 254 nm,
It is good to use a 365nm medium / high pressure ultraviolet lamp.
In addition to UV lamps, solar UV lamps, chemical lamps, black light lamps, metal halide lamps, sodium lamps, and other lamps that emit wavelengths of 700 nm or less are used as light irradiation lamps according to the purpose of the UV chemical reaction treatment. it can.
【００２３】透光管２の材質は石英ガラス以外にテフロ
ン等の紫外線透過率の高いものであればどのようなもの
でも使用でき、この透光管２は両端に開口部を有するも
のを使用し、両端を枠体４に水封状態で、かつ着脱可能
に取り付ける。As the material of the light-transmitting tube 2, any material having a high ultraviolet transmittance such as Teflon can be used other than quartz glass, and the light-transmitting tube 2 having an opening at both ends is used. Both ends are attached to the frame 4 in a water-sealed state and detachably.
【００２４】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、ＦＥＰ（テトラフロロエチレン−ヘキ
サフロロピレン共重合樹脂）が最適であるが、これ以外
のフッ素樹脂でもよく、その他、紫外線等を透過し、紫
外線等によって劣化せず、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あれば十分である。As the fluororesin coated on the surface of the light transmitting tube 2, for example, FEP (tetrafluoroethylene-hexafluoropyrene copolymer resin) is optimal, but other fluororesins may be used. Any material may be used as long as it has an appropriate physical strength and does not deteriorate due to ultraviolet rays or the like, and a coating thickness of 0.3 to 0.5 mm is sufficient.
【００２５】透光管２の表面にフッ素樹脂を被覆するに
は、たとえば、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
合わせる等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, for example, a heat-shrinkable tube-shaped fluororesin is coated on the surface of the light-transmitting tube 2 and then heated to shrink.
Alternatively, it may be performed by a known method such as laminating a thin-film fluororesin on the surface of the light transmitting tube 2.
【００２６】表面にフッ素樹脂を被覆した各透光管２に
は、その表面に沿って摺動するリング状スクレーパー３
を挿填し、これをステンレス製のコの字状の中空状の枠
体４に柵状に、すなわち、透光管２を枠体４に上下に間
隔を置いて多段に取り付け、水封状態を確保するととも
に、枠体４の中空部に配線した電気リード線５を紫外線
ランプ１に接続して紫外線照射モジュール６を形成す
る。Each light-transmitting tube 2 whose surface is coated with a fluororesin has a ring-shaped scraper 3 sliding along its surface.
Is inserted into a stainless steel U-shaped hollow frame 4 in the form of a fence, that is, the light-transmitting tubes 2 are attached to the frame 4 in multiple stages at intervals vertically, and And the electric lead wire 5 wired in the hollow portion of the frame 4 is connected to the ultraviolet lamp 1 to form the ultraviolet irradiation module 6.
【００２７】前述した紫外線照射モジュール６を、図２
に示すように、細菌、有機物、有害物質等を含む被処理
液が流入するハウジング９内に着脱可能に配置し、被処
理液中の細菌の殺菌、有機物の酸化分解、有害物質の分
解等の紫外線照射処理を行う流路８を形成するが、この
紫外線照射モジュール６は、一体化したユニットとし
て、ハウジング９内に一個設置する場合もあるが、処理
流量に応じて、複数個のユニットとして間隔を置いて多
列に並行に設置する場合もある。The above-mentioned ultraviolet irradiation module 6 is
As shown in (1), it is detachably disposed in the housing 9 into which the liquid to be treated containing bacteria, organic substances, harmful substances, etc. flows, and sterilization of bacteria in the liquid to be treated, oxidative decomposition of organic substances, decomposition of harmful substances, etc. The flow path 8 for performing the ultraviolet irradiation process is formed. The ultraviolet irradiation module 6 may be installed as one unit in the housing 9 as an integrated unit. May be installed in parallel in multiple rows.
【００２８】また、ハウジング９内の上方の液体と接触
しない位置に、移動機構として、モーター１０と連結し
たスクリュー軸１１等の移動手段を設け、スクリュー軸
１１に、図４に示すように、スクリューナット１２等の
移動体を螺挿し、スクリュー軸１１の回転によってスク
リューナット１２を移動させるように構成する。A moving mechanism such as a screw shaft 11 connected to a motor 10 is provided as a moving mechanism at a position above the housing 9 where the liquid does not come into contact with the liquid, and as shown in FIG. A moving body such as a nut 12 is screwed in, and the screw nut 12 is moved by rotation of the screw shaft 11.
【００２９】移動機構として、前述したモーター１０と
連結したスクリュー軸１１以外に、モーター１０と連結
したロープで固定軸に摺動可能に取り付けた移動板も使
用でき、その他、移動体を移動できるものであれば、ど
んなものでも使用できる。As the moving mechanism, in addition to the screw shaft 11 connected to the motor 10, a moving plate slidably mounted on a fixed shaft with a rope connected to the motor 10 can be used, and other moving mechanisms can be used. Anything can be used.
【００３０】スクリューナット１２には、スクリューナ
ット１２と一体となって移動する移動体１３を取り付け
るとともに、この移動体１３の下部の側面にリング状の
スクレーパー３を着脱可能に取り付けるが、スクレーパ
ー３の支持体としては、図３に示すように、移動体１３
の下部の側面にガイド１４を着脱可能に付設して、ガイ
ド１４にスクレーパー３を取り付けるサポーター１５を
設けてもよい。A movable body 13 that moves integrally with the screw nut 12 is attached to the screw nut 12, and a ring-shaped scraper 3 is detachably attached to a lower side surface of the movable body 13. As a support, as shown in FIG.
The guide 14 may be detachably attached to the lower side surface, and a supporter 15 for attaching the scraper 3 to the guide 14 may be provided.
【００３１】そして、サポーター１５を設けたガイド１
４を透光管２の表面に近接して挿填するとともに、図６
に示すように、リング状のスクレーパー３をコの字状の
サポーター１５によつて挟み込むように着脱可能に保持
し、サポーター１５の移動とともにスクレーパー３を、
フッ素樹脂の被覆処理を行った透光管２の外面に沿って
摺動するようにする。また、ガイド１４またはガイド１
４とともに移動体１３は、これらを上方に引き上げるこ
とによって、サポーター１５をスクレーパー３より引き
抜けるような構造にする。The guide 1 provided with the supporter 15
4 is inserted close to the surface of the light-transmitting tube 2 and FIG.
As shown in (1), the ring-shaped scraper 3 is detachably held so as to be sandwiched between U-shaped supporters 15, and the scraper 3 is moved together with the supporter 15 to move.
It slides along the outer surface of the light transmitting tube 2 which has been coated with the fluororesin. Also, guide 14 or guide 1
The moving body 13 together with 4 has a structure in which the supporters 15 can be pulled out of the scraper 3 by pulling them upward.
【００３２】サポーター１５によつてリング状のスクレ
ーパー３を着脱可能に取り付ける構造は、前述した構造
以外に、ガイド１４またはガイド１４とともに移動体１
３を上方に引き上げることによって、サポーター１５を
スクレーパー３より引き抜けるような構造であればどの
ようなものでもよい。The structure in which the ring-shaped scraper 3 is detachably attached by the supporter 15 is not limited to the above-described structure, but may be a guide 14 or the movable body 1 together with the guide 14.
Any structure may be used as long as the supporter 15 can be pulled out of the scraper 3 by pulling the supporter 15 upward.
【００３３】リング状のスクレーパー３の移動体１３と
しては、図３に示すように、櫛状の形状以外に、逆Ｕ字
状、棒状、板状も使用でき、移動体１３とガイド１４は
一体でもよく、また移動体１３とガイド１４とは分離で
きるものであってもよい。As the moving body 13 of the ring-shaped scraper 3, as shown in FIG. 3, in addition to the comb shape, an inverted U-shape, a rod shape, and a plate shape can be used. Alternatively, the moving body 13 and the guide 14 may be separable.
【００３４】枠体４の材質としては、前述したステンレ
ス製以外にも、セラミツクス製またはプラスチック製等
の物理的強度があって、不純物が溶出しない材質を使用
でき、また枠体４の形状としては、前述したコの字状以
外に、ロの字状、その他物理的強度が維持し易い形状で
あれば、どのような形状であってもよい。As the material of the frame 4, besides the stainless steel described above, a material having physical strength such as ceramics or plastic and having no impurities eluted can be used. In addition to the above-described U-shape, any shape may be used as long as it has a square shape or any other shape that can easily maintain physical strength.
【００３５】リング状のスクレーパー３としては、天然
ゴムや合成ゴム製でもよいが、テフロン製、特に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状のスクレーパー３を
使用することが望ましく、中でも、図４に示すように、
このテフロン製のリングの両端であって、透光管２に接
する部分に突起１９を形成することによって、スケール
の剥離性を高めるとともに、スクレーパーの摺動の際の
擦抵抗を一層低減するようにしたものが最適である。As the ring-shaped scraper 3, a natural rubber or a synthetic rubber may be used, but a Teflon-made ring-shaped scraper 3 made of Teflon, particularly a Teflon made of an ethylene tetrafluoro-perfluoroalkylvinyl ether copolymer resin is used. It is desirable, among others, as shown in FIG.
By forming projections 19 at both ends of the Teflon ring and in contact with the light-transmitting tube 2, the releasability of the scale is increased and the frictional resistance when the scraper slides is further reduced. The best one is best.
【００３６】なお、光照射ランプを内蔵する透光管の表
面を研磨して透光管の平滑性を高めることによって、透
光管へのスケールの付着を極力防止するとともに、リン
グ状のスクレーパーの剥離性、摩擦抵抗を極力低減し
て、スケールの剥離等を効果的に行うようにしてもよ
い。The surface of the light-transmitting tube having the built-in light irradiation lamp is polished to improve the smoothness of the light-transmitting tube, thereby preventing the scale from adhering to the light-transmitting tube as much as possible. The peeling property and the frictional resistance may be reduced as much as possible so that the peeling of the scale and the like can be effectively performed.
【００３７】本発明の装置の操作について説明すると、
第１図に示すような紫外線照射モジュール６を一体化し
たユニットを設置したハウジング９内の流路８に、細
菌、有機物、有害物等を含む液体を流入させて、この液
体に対して透光管２に内蔵されている紫外線ランプ１よ
り紫外線を照射して、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紫外線照射処理を行い、細
菌、有機物、有害物等の存在しない処理液体をハウジン
グ９より外部に流出させて貯留する。The operation of the apparatus of the present invention will be described.
A liquid containing bacteria, organic substances, harmful substances and the like is caused to flow into a flow path 8 in a housing 9 in which a unit in which an ultraviolet irradiation module 6 as shown in FIG. Ultraviolet light is emitted from an ultraviolet lamp 1 built in the tube 2 to perform ultraviolet irradiation treatment such as sterilization of bacteria in liquid, oxidative decomposition of organic substances, decomposition of harmful substances, and the presence of bacteria, organic substances, harmful substances, etc. The processing liquid that does not flow out of the housing 9 and is stored.
【００３８】前述した液体の紫外線照射処理中において
は、フッ素樹脂を被覆した透光管２の表面には液体中の
有機物等のスケールが付着し難いが、それでも紫外線照
射処理を継続していると、透光管２の表面に有機物等の
スケールが付着して紫外線照射量が低下するので、液体
の紫外線照射処理中に、連続的または間欠的にモーター
１０を駆動してスクリュー軸１１を正転および逆転させ
て、スクリューナット１２をスクリュー軸１１に沿って
往復させて移動させる。During the above-described liquid ultraviolet irradiation treatment, scales such as organic substances in the liquid are unlikely to adhere to the surface of the light transmitting tube 2 coated with the fluororesin. Since the amount of ultraviolet radiation is reduced due to the attachment of scales such as organic substances to the surface of the light transmitting tube 2, the motor 10 is driven continuously or intermittently to rotate the screw shaft 11 forward during the ultraviolet radiation treatment of the liquid. The screw nut 12 is reciprocated along the screw shaft 11 and moved.
【００３９】スクリューナット１２の往復移動ととも
に、サポーター１５付のガイド１４を設けた移動体１３
も往復移動するので、リング状のスクレーパー３も、フ
ッ素樹脂を被覆してスケールの剥離性を高めた透光管２
の表面を、摩擦抵抗を低減してスムースに往復移動し、
透光管２の表面に付着した有機物等のスケールを簡単、
容易に剥離して、透光管２を清掃する。With the reciprocating movement of the screw nut 12, a moving body 13 provided with a guide 14 with a supporter 15 is provided.
The ring-shaped scraper 3 is also coated with a fluororesin to enhance the scale releasability.
Reciprocates smoothly on the surface of the
The scale of organic substances and the like attached to the surface of the light transmitting tube 2 can be easily reduced.
The light-transmitting tube 2 is easily separated and the light-transmitting tube 2 is cleaned.
【００４０】以上述べたリング状のスクレーパー３によ
るフッ素樹脂を被覆した透光管２のスケールの剥離等の
清掃は、前述したように、紫外線照射処理を行っている
間に行ってもよいが、場合によっては、透光管２へスケ
ールが付着して紫外線ランプ１よりの紫外線照射量が低
下したことを確認してから行ってもよい。As described above, cleaning such as peeling of the scale of the light transmitting tube 2 coated with the fluororesin by the ring-shaped scraper 3 may be performed during the ultraviolet irradiation treatment as described above. Depending on the case, it may be performed after confirming that the scale adheres to the light transmitting tube 2 and the amount of ultraviolet irradiation from the ultraviolet lamp 1 is reduced.
【００４１】たとえば、ハウジング９内に紫外線ランプ
１の照射量と液体の紫外線透過率を監視する紫外線照射
モニター１８を付設して、紫外線ランプ１の照射量の減
少と液体の紫外線透過率の低下を確認することによっ
て、透光管２の清掃操作を開始し、また紫外線ランプ１
の照射量の増加と液体の紫外線透過率の向上を確認する
ことによって、清掃操作を停止させてもよく、これによ
って、前述した透光管２の清掃操作を自動化することも
可能である。For example, an ultraviolet irradiation monitor 18 for monitoring the irradiation amount of the ultraviolet lamp 1 and the ultraviolet transmittance of the liquid is provided in the housing 9 to reduce the irradiation amount of the ultraviolet lamp 1 and the ultraviolet transmittance of the liquid. By confirming, the cleaning operation of the light transmitting tube 2 is started, and
The cleaning operation may be stopped by confirming the increase in the irradiation amount of the liquid and the improvement in the ultraviolet transmittance of the liquid, whereby the above-described cleaning operation of the light transmitting tube 2 can be automated.
【００４２】なお、図示はしないが、スクリュー軸１１
の一端側面に、これと一体となって回転するセンサーの
検出物を設け、この検出物の回転回数、すなわちスクリ
ュー軸１１の回転回数をセンサーによって検出し、そし
てスクリュー軸１１の回転数をカウントチェックして、
モーター１０のオン・オフを行い、前述した透光管２の
清掃操作を自動化することも可能である。Although not shown, the screw shaft 11
A detection object of a sensor that rotates integrally with the detection object is provided on one side surface of the sensor, the number of rotations of the detection object, that is, the number of rotations of the screw shaft 11 is detected by the sensor, and the number of rotations of the screw shaft 11 is checked. do it,
It is also possible to turn on / off the motor 10 and automate the above-described cleaning operation of the light transmitting tube 2.
【００４３】スクリュー軸１１の回転数、スクレーパー
３の移動速度、反復回数は、紫外線照射処理条件や透光
管２の汚染状態に応じて適宜決定するが、通常の場合、
スクリュー軸１１の回転数は１０〜２０回／毎分にする
とよく、またスクレーパー３の移動速度は５〜１０ｃｍ
／毎分、反復頻度は２〜６回／日とすることが望まし
い。The number of rotations of the screw shaft 11, the moving speed of the scraper 3, and the number of repetitions are appropriately determined according to the conditions of the ultraviolet irradiation treatment and the state of contamination of the light transmitting tube 2.
The rotation speed of the screw shaft 11 is preferably set to 10 to 20 times / minute, and the moving speed of the scraper 3 is set to 5 to 10 cm.
It is desirable that the repetition frequency be 2 to 6 times / day.
【００４４】リング状のスクレーパー３によるフッ素樹
脂を被覆した透光管２のスケールの清掃を行う際に、ハ
ウジング９内に、気泡発生装置、加圧空気噴出装置、ス
プレイ、超音波装置等を設け、気泡、加圧空気、噴水、
超音波の作用を併用して、透光管２のスケールの剥離、
清掃を促進してもよい。When cleaning the scale of the light transmitting tube 2 coated with the fluororesin by the ring-shaped scraper 3, a bubble generator, a pressurized air jetting device, a spray, an ultrasonic device, etc. are provided in the housing 9. , Air bubbles, pressurized air, fountains,
The peeling of the scale of the light-transmitting tube 2,
Cleaning may be promoted.
【００４５】また、移動手段に付設した移動体（ガイ
ト、サポーター）とリング状のスクレーパー３とを着脱
可能に取り付けて、スクレーパー３と移動体の分離を簡
単、容易とし、紫外線照射モジュール６を、着脱可能な
一体のユニットとして、ワンタッチで、短時間で、ハウ
ジングより取り出したり、充填するようにし、さらに、
切断または毀損した紫外線ランプ１を交換するについて
も、紫外線ランプ１を一本一本取り出して交換を行わ
ず、紫外線照射モジュール６を、着脱可能な一体のユニ
ットとして、ハウジング９より簡単に取り出し、切断ま
たは毀損した光照射ランプ１を枠体４より容易に、短時
間に交換して紫外線ランプ１を交換する。Further, the movable body (gite, supporter) attached to the moving means and the ring-shaped scraper 3 are detachably attached to each other to make the separation of the scraper 3 and the movable body simple and easy. As a detachable integrated unit, it can be taken out of the housing or filled with one touch in a short time, and furthermore,
Regarding the replacement of the cut or damaged UV lamps 1, the UV lamps 1 are taken out of the housing 9 as a detachable integrated unit without taking out each UV lamp 1 one by one and performing replacement. Alternatively, the damaged light irradiation lamp 1 is replaced more easily and in a shorter time than the frame 4, and the ultraviolet lamp 1 is replaced.
【００４６】[0046]
【実施例】本発明装置として、図２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１６０ｗの紫外線ランプ（株式会社日本フォトサイエ
ンス製ＡＹ−１０）を内蔵した石英ガラス製の透過管を
２０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）の約
０．５ｍｍの被膜を形成するとともに、図４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各透光管に摺動
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 160 W ultraviolet lamp (AY-10 manufactured by Nihon Photo Science Co., Ltd.) for irradiating ultraviolet rays near 254 nm in an ultraviolet sterilizer having a structure as shown in FIG. 20 permeation tubes are formed, and a coating of about 0.5 mm of tetrafluoroethylene-hexafluoropyrene copolymer resin (FEP) is formed on the surface of each permeation tube, and as shown in FIG. A ring-shaped cleaning body made of a tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer resin and having a projecting scraper at both ends was slidably inserted into each light transmitting tube.
【００４７】前述した５本の透光管を、図１に示すよう
な、ステンレス製のコの字状の中空状の枠体に上下に間
隔を置いて多段に取り付けて紫外線照射モジュールを形
成し、このモジュール４個を、モーター、スクリュー
軸、スクリューナット等を付設したハウジング内に着脱
可能に装填するとともに、モジュールの各透光管のリン
グ状のスクレーパーをガイドに設けたサポーターに着脱
可能に取り付けた。The five light-transmitting tubes described above are mounted in multiple stages at intervals vertically on a stainless steel U-shaped hollow frame as shown in FIG. 1 to form an ultraviolet irradiation module. The four modules are detachably mounted in a housing provided with a motor, a screw shaft, a screw nut, etc., and the ring-shaped scraper of each light-transmitting tube of the module is detachably mounted on a supporter provided on a guide. Was.
【００４８】従来の比較装置として、２５４ｎｍ付近の
紫外線を照射する１６０ｗの紫外線ランプ（株式会社日
本フォトサイエンス製ＡＹ−１０）を内蔵した通常の石
英ガラス製の透過管を２０本を、前述した構造と同様の
構造の紫外線殺菌装置内に配設し、スクレーパーとして
リング状のプラスチック製のものを摺動可能に挿填し
た。As a conventional comparison device, 20 ordinary quartz glass transmission tubes having a built-in 160 W ultraviolet lamp (AY-10 manufactured by Japan Photo Science Co., Ltd.) for irradiating ultraviolet light having a wavelength of about 254 nm were used. The device was disposed in an ultraviolet sterilizer having the same structure as that described above, and a ring-shaped plastic material was slidably inserted as a scraper.
【００４９】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
２５５ｍ3 ／時の流速で流入させるとともに、スクリュ
ー軸の回転数は１０回／毎分、スクレーパーの移動速度
は５ｃｍ／毎分、運転頻度は４反復回／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 255 m 3 / hour, and the rotation speed of the screw shaft was 10 times / min, the moving speed of the scraper 5 cm / min, the operating frequency performs sterilization of coliforms by ultraviolet irradiation at a 4 iterations / day conditions, coliforms 10 0
10 1 pieces / ml of treated water were obtained.
【００５０】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０．６９４円／ｍ
3 と安価であった。In the apparatus of the present invention, even if the above-mentioned ultraviolet irradiation treatment is continued for one year, the scale of calcium, magnesium and the like 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 is 0.694 yen / m
It was 3 and cheap.
【００５１】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
０．９５円／ｍ3 に上昇した。On the other hand, in the conventional comparison device, when the above-described ultraviolet irradiation process is continued for two months, the scale of calcium, magnesium, or the like in the liquid adheres to the light transmitting tube while the ultraviolet irradiation process is continued. 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. As a result, the processing cost increased to 0.95 yen / m 3 .
【００５２】[0052]
【効果】本発明によると、開放式光照射装置のユニット
化した光照射モジュールの枠体に取り付けた光照射ラン
プを内蔵した透光管について、被処理液の光照射処理を
行っている間、平滑性を高めた透光管にスケールを付着
し難くすることが可能であり、また、フッ素樹脂を被覆
した透光管にスケールが付着した場合には、被処理液の
光照射処理中に、平滑性を高めた透光管に付着したスケ
ールをテフロン製等のスクレーパーによって、摩擦抵抗
を極力低減して、スムースに、自動的に剥離等の清掃を
行い、紫外線照射効率を低下させずに、処理液体の純度
を所定の値に維持することが可能である。According to the present invention, a light-transmitting tube having a built-in light-irradiation lamp attached to a frame of a light-irradiation module, which is a unit of an open-type light-irradiation device, is subjected to light-irradiation treatment of a liquid to be treated. It is possible to make it difficult for the scale to adhere to the light-transmitting tube with improved smoothness, and if the scale adheres to the light-transmitting tube coated with fluororesin, during the light irradiation treatment of the liquid to be treated, Using a scraper made of Teflon etc. to reduce the frictional resistance of the scale attached to the light transmitting tube with improved smoothness as much as possible, smoothly and automatically cleaning such as peeling, without lowering the UV irradiation efficiency, It is possible to maintain the purity of the processing liquid at a predetermined value.
【００５３】また、本発明は、開放式光照射装置のユニ
ット化した光照射モジュールの枠体に取り付けた光照射
ランプを内蔵した透光管について、被処理液の光照射処
理の中断、装置の解体をして、スケールの付着した透光
管を個々に取り出してスケールの剥離等の清掃作業を行
うことなく、被処理液の連続的な光照射処理が可能であ
り、液体の光照射処理効率を飛躍的に向上させるという
優れた効果を達成できる。The present invention also relates to a light-transmitting tube having a built-in light irradiation lamp mounted on a frame of a light irradiation module, which is a unitized open light irradiation device. Disassembly and continuous light irradiation of the liquid to be treated are possible without removing the light-transmitting tubes to which the scale adheres and performing cleaning work such as peeling of the scale. An excellent effect of dramatically improving the above can be achieved.
【００５４】さらに、本発明は、開放式光照射装置にお
ていスクリュー軸等の移動手段に付設したスクリューナ
ット等の移動体（ガイト、サポーター）にリング状のス
クレーパーとを着脱可能に取り付け、スクレーパーと移
動体の分離を簡単、容易にし、光照射ランプを内蔵した
複数本の透光管よりなる光照射モジュールを、着脱可能
な一体のユニットとして、ワンタッチで、短時間に、ハ
ウジングより取り出したり、充填して、開放式光照射装
置の製作、修理、点検等のコストを安価にすることが可
能である。Further, in the present invention, a ring-shaped scraper is detachably attached to a moving body (gait, supporter) such as a screw nut attached to a moving means such as a screw shaft in an open-type light irradiation device. The light irradiation module consisting of a plurality of light-transmitting tubes with built-in light irradiation lamps can be easily and easily separated from the housing as a detachable integrated unit. By filling, it is possible to reduce the cost of manufacturing, repairing, checking and the like of the open type light irradiation device.
【００５５】さらに、本発明は、光照射モジュールの複
数個の透光管のうち、切断または毀損した光照射ランプ
を交換する場合に、光照射ランプを一本一本取り出して
交換を行うことなく、光照射モジュールを一体のユニッ
トとして、ハウジングより簡単に取り出し、切断または
毀損した光照射ランプを枠体より容易、短時間に交換す
ることが可能である。Further, according to the present invention, when replacing a cut or damaged light irradiation lamp among a plurality of light transmitting tubes of a light irradiation module, the light irradiation lamps need not be taken out one by one and replaced. The light irradiation module can be easily taken out of the housing as an integral unit, and the cut or damaged light irradiation lamp can be replaced more easily and in a shorter time than the frame.
【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、この透光管にリング状のスクレーパーを挿填し
て、枠体に取り付けた状態を示す紫外線照射モジュール
の斜視図である。FIG. 1 is a perspective view of an ultraviolet irradiation module showing a state in which a light-transmitting tube having a built-in ultraviolet lamp is coated with a fluororesin, a ring-shaped scraper is inserted into the light-transmitting tube, and the light-emitting tube is attached to a frame. .
【図２】紫外線照射モジュールを着脱可能な一体のユニ
ットとして多列に配列し、移動手段に付設した移動体に
よって、透光管に挿填したリング状のスクレーパーを摺
動する状態を示す開放式紫外線照射装置の断面図であ
る。FIG. 2 is an open type showing a state in which ultraviolet irradiation modules are arranged in multiple rows as a detachable integrated unit, and a ring-shaped scraper inserted into a light transmitting tube is slid by a moving body attached to a moving means. It is sectional drawing of an ultraviolet irradiation device.
【図３】スクリューナットと一体の移動体に設けたガイ
ドに固定したサポーターによって、紫外線照射モジュー
ルのフッ素樹脂を被覆した透光管に挿填されているリン
グ状のスクレーパーを着脱可能に保持した状態を示す断
面図である。FIG. 3 shows a state in which a ring-shaped scraper inserted into a fluororesin-coated light-transmitting tube of an ultraviolet irradiation module is detachably held by a supporter fixed to a guide provided on a movable body integrated with a screw nut. FIG.
【図４】紫外線ランプを内蔵した透光管にフッ素樹脂を
被覆し、この透光管にテフロン製であって、その両端に
突起を形成したリング状のスクレーパーを挿着した状態
を示す説明図である。FIG. 4 is an explanatory view showing a state in which a light-transmitting tube having a built-in ultraviolet lamp is coated with a fluororesin, and a ring-shaped scraper made of Teflon and having projections formed at both ends thereof is inserted into the light-transmitting tube. It is.
１ 紫外線ランプ ２ フッ素樹脂を被覆した透光管 ３ リング状のスクレーパー ４ 枠体 ５ 電気リード線 ６ 紫外線照射モジュール ７ コネクター ８ 流路 ９ ハウジング 10 モーター 11 スクリュー軸 12 スクリューナット 13 移動体 14 ガイド 15 サポーター 16 ホールダー 17 バッキング 18 光照射モニター 19 突起 DESCRIPTION OF SYMBOLS 1 Ultraviolet lamp 2 Translucent tube coated with fluorocarbon resin 3 Ring-shaped scraper 4 Frame 5 Electric lead wire 6 Ultraviolet irradiation module 7 Connector 8 Flow path 9 Housing 10 Motor 11 Screw shaft 12 Screw nut 13 Moving body 14 Guide 15 Supporter 16 Holder 17 Backing 18 Light irradiation monitor 19 Projection
Claims (3)
フッ素樹脂またはフッ素膜を被覆して透光管の平滑性を
高め、この透光管の複数本を枠体に柵状に取り付けて光
照射モジュールを形成するとともに、この光照射モジュ
ールの複数個をハウジング内に着脱可能な一体のユニッ
トとして組み立てて、流体中の細菌の殺菌、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を形
成し、ハウジングに取り付けたスクリュー軸等の移動手
段にスクリューナット等の移動体を付設し、移動体の先
端を透光管の表面に近接して挿填するとともに、この移
動体の先端に透光管の外面に沿って摺動するスクレーパ
ーを着脱可能に取り付け、透光管の表面に付着するスケ
ールを、液体の光照射処理中に、剥離等の清掃を行う開
放式光照射装置の透光管の自動清掃機構。1. A surface of a light-transmitting tube containing a light irradiation lamp is coated with a fluororesin or a fluorine film to enhance the smoothness of the light-transmitting tube, and a plurality of the light-transmitting tubes are mounted on a frame in a fence shape. To form a light irradiation module, and assemble a plurality of the light irradiation modules as an integral unit that can be attached to and detached from the housing, to sterilize bacteria in fluids, oxidatively decompose organic substances, decompose harmful substances, etc. A flow path for processing is formed, a moving body such as a screw nut is attached to a moving means such as a screw shaft attached to the housing, and a tip of the moving body is inserted close to the surface of the light transmitting tube. An open type that detachably attaches a scraper that slides along the outer surface of the light-transmitting tube to the tip of the moving object, and cleans the scale that adheres to the surface of the light-transmitting tube during peeling of the liquid during light irradiation processing. Light irradiation device Automatic light tube cleaning mechanism.
レーパーを使用する請求項１記載の開放式光照射装置の
透光管の自動清掃機構。2. The automatic cleaning mechanism for a light-transmitting tube of an open-type light irradiation device according to claim 1, wherein a Teflon scraper is used as the scraper.
レーパーの両端であって、透光管に接する部分に突起を
形成する請求項２記載の開放式光照射装置の透光管の自
動清掃機構。3. The automatic cleaning mechanism for a light-transmitting tube of an open-type light irradiation device according to claim 2, wherein protrusions are formed at both ends of the Teflon-made scraper and in contact with the light-transmitting tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9074623A JPH10249335A (en) | 1997-03-12 | 1997-03-12 | Automatically cleaning mechanism for light transmitting tube of open-type photoirradiation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9074623A JPH10249335A (en) | 1997-03-12 | 1997-03-12 | Automatically cleaning mechanism for light transmitting tube of open-type photoirradiation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10249335A true JPH10249335A (en) | 1998-09-22 |
Family
ID=13552510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9074623A Pending JPH10249335A (en) | 1997-03-12 | 1997-03-12 | Automatically cleaning mechanism for light transmitting tube of open-type photoirradiation device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10249335A (en) |
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| WO2000026144A1 (en) * | 1998-11-03 | 2000-05-11 | Trojan Technologies Inc. | Radiation source module and cleaning apparatus therefor |
| WO2000051943A1 (en) * | 1999-02-26 | 2000-09-08 | Trojan Technologies Inc. | Radiation source module and cleaning apparatus therefor |
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| US6342188B1 (en) | 1998-11-03 | 2002-01-29 | Trojan Technologies, Inc. | Radiation source module and cleaning apparatus therefor |
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| JP4866244B2 (en) * | 2003-11-12 | 2012-02-01 | ヴェオリア・ウォーター・ソリューションズ・アンド・テクノロジーズ・サポート | Device for cleaning the protective sheath of the UV lamp of a water sterilizer using UV rays |
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| JP2014226631A (en) * | 2013-05-24 | 2014-12-08 | 国立大学法人埼玉大学 | Ultraviolet irradiation water treatment device |
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| CN106540940A (en) * | 2016-10-31 | 2017-03-29 | 重庆市南川区庆岩福利碱厂 | Flue gas ash removal case with dedusting mechanism |
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