JPH09299938A - Ultraviolet irradiator provided with scraper ring on light transmitting tube - Google Patents
Ultraviolet irradiator provided with scraper ring on light transmitting tubeInfo
- Publication number
- JPH09299938A JPH09299938A JP7462297A JP7462297A JPH09299938A JP H09299938 A JPH09299938 A JP H09299938A JP 7462297 A JP7462297 A JP 7462297A JP 7462297 A JP7462297 A JP 7462297A JP H09299938 A JPH09299938 A JP H09299938A
- Authority
- JP
- Japan
- Prior art keywords
- scraper ring
- light
- light transmission
- transmission tube
- 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.)
- Granted
Links
- 238000004140 cleaning Methods 0.000 claims abstract description 104
- 241000894006 Bacteria Species 0.000 claims abstract description 14
- 229920006362 Teflon® Polymers 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims description 100
- 239000007788 liquid Substances 0.000 claims description 84
- 230000001954 sterilising effect Effects 0.000 claims description 15
- 239000000126 substance Substances 0.000 claims description 12
- 238000004659 sterilization and disinfection Methods 0.000 claims description 11
- 239000004809 Teflon Substances 0.000 claims description 10
- 229920006026 co-polymeric resin Polymers 0.000 claims description 7
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 5
- 239000011737 fluorine Substances 0.000 claims description 5
- 229910052731 fluorine Inorganic materials 0.000 claims description 5
- 238000000354 decomposition reaction Methods 0.000 claims description 3
- 238000006864 oxidative decomposition reaction Methods 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 239000000565 sealant Substances 0.000 claims 1
- 230000001678 irradiating effect Effects 0.000 abstract description 13
- 239000010419 fine particle Substances 0.000 abstract description 5
- 239000012535 impurity Substances 0.000 abstract description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 22
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 11
- 238000000034 method Methods 0.000 description 11
- 229920001971 elastomer Polymers 0.000 description 10
- 239000005060 rubber Substances 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- 239000002253 acid Substances 0.000 description 6
- 230000001965 increasing effect Effects 0.000 description 6
- 238000002834 transmittance Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000003566 sealing material Substances 0.000 description 5
- 230000002195 synergetic effect Effects 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000002455 scale inhibitor Substances 0.000 description 4
- 239000013535 sea water Substances 0.000 description 4
- 239000010865 sewage Substances 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 241000588724 Escherichia coli Species 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 239000013013 elastic material Substances 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 208000004434 Calcinosis Diseases 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 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
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000002070 germicidal effect Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 229910001507 metal halide Inorganic materials 0.000 description 1
- 150000005309 metal halides Chemical class 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000010959 steel 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
- 239000002699 waste material 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
- C02F2201/322—Lamp arrangement
- C02F2201/3227—Units with two or more lamps
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、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光照射
処理を行う光照射ランプを内蔵した光透過管を洗浄液に
よって洗浄するスクレーパーリングを設けた紫外線照射
装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention cleans a light transmission tube containing a light irradiation lamp for performing light irradiation treatment such as sterilization of bacteria in a liquid to be treated, oxidative decomposition of organic substances, decomposition of harmful substances, etc. with a cleaning liquid. The present invention relates to an ultraviolet irradiation device provided with a scraper ring.
【０００２】[0002]
【従来の技術】紫外線照射装置を用いて、下水のような
不純物を含んだ被処理液から不純物を除去する場合、長
時間に渡って紫外線照射装置を使用すると、被処理液と
の接触部である、光照射ランプを内蔵した光透過管の表
面に、被処理液の鉄分、カルシウム等の硬度成分等が析
出し、光照射ランプを内蔵した光透過管の紫外線透過を
妨げ、光照射処理効率を低下して、処理液の純度等が悪
化する問題があった。2. Description of the Related Art When an ultraviolet irradiation device is used to remove impurities from a liquid to be treated containing impurities such as sewage, if the ultraviolet irradiation device is used for a long period of time, the contact portion with the liquid to be treated may be removed. The hardness of the liquid to be treated such as iron and calcium deposits on the surface of the light transmission tube with a built-in light irradiation lamp, which blocks the UV transmission of the light transmission tube with a built-in light irradiation lamp, thus improving the light irradiation processing efficiency. However, there is a problem that the purity of the processing liquid is deteriorated.
【０００３】従来、この問題の対策としては、ゴムやテ
フロン等のスクレーパーによって定期的に、光照射ラン
プを内蔵した光透過管の表面を物理的に清掃、洗浄され
てきたが、しかしながら、光照射ランプを内蔵した光透
過管の表面に析出した硬度成分等のスケールは、通常の
場合、非常に微細な粒子であって、光透過管の表面の凹
に入り込んで、従来の物理的な洗浄によっては、十分に
洗浄されないという問題があった。Conventionally, as a measure against this problem, the surface of the light transmitting tube having a built-in light irradiation lamp has been physically cleaned and washed periodically with a scraper such as rubber or Teflon. The scale of the hardness component etc. deposited on the surface of the light transmission tube with the built-in lamp is usually very fine particles, which enter into the concave of the surface of the light transmission tube and are removed by conventional physical cleaning. Had a problem that it was not washed well.
【０００４】また、他の対策としては、リン酸等弱酸溶
液やスケール防止剤溶液等の洗浄液を流入させた洗浄槽
に、硬度成分等のスケールが析出した光透過管を浸漬し
て、硬度成分等のスケール分を除去する化学的洗浄も行
われている。As another measure, the light transmitting tube on which scales such as hardness components are deposited is immersed in a cleaning tank into which a cleaning liquid such as a weak acid solution such as phosphoric acid or a scale inhibitor solution is introduced, and the hardness components Chemical cleaning is also performed to remove scales such as.
【０００５】しかし、前述した化学的洗浄には以下にの
べるような不都合がある。 紫外線照射装置を解体して、硬度成分等のスケール
が析出した光透過管を取り出し、洗浄槽に浸漬する作業
は手間がかかる。 前述した洗浄作業のために、紫外線照射処理を中断
せざるを得なく、紫外線照射処理効率が低下する。 洗浄槽内に多量の洗浄液を流入させて使用する必要
があり、洗浄処理コストが嵩み、不経済である。 洗浄処理作業の自動化を行い難く、近年求められて
いる装置のオートメーション化に適していない。However, the above-mentioned chemical cleaning has the following disadvantages. It is troublesome to disassemble the ultraviolet irradiation device, take out the light transmission tube on which scales such as hardness components are deposited, and immerse it in a cleaning tank. Due to the above-described cleaning work, the ultraviolet irradiation process has to be interrupted, and the efficiency of the ultraviolet irradiation process decreases. It is necessary to flow a large amount of cleaning liquid into the cleaning tank for use, which increases the cost of cleaning treatment and is uneconomical. It is difficult to automate the cleaning process, and it is not suitable for the automation of equipment that has been demanded in recent years.
【０００６】[0006]
【発明が解決しようとする課題】本発明は、従来のゴム
やテフロン等のスクレーパーによる物理的洗浄では洗浄
できない、光透過管の表面の凹凸部、特に凹部に入り込
んだ非常に微細な粒子を完全に洗浄をすることによっ
て、光照射ランプを内蔵した光透過管の紫外線透過効率
を高め、光照射処理結果を向上させることを目的とす
る。DISCLOSURE OF THE INVENTION The present invention completely eliminates the very fine particles that have entered the irregularities on the surface of the light transmission tube, especially the concaves, which cannot be washed by conventional physical cleaning with a scraper such as rubber or Teflon. The purpose of this is to improve the ultraviolet light transmission efficiency of the light transmission tube having the light irradiation lamp incorporated therein and to improve the result of the light irradiation treatment by cleaning the same.
【０００７】また、本発明は、従来のリン酸等弱酸溶液
やスケール防止剤溶液等の洗浄液による化学的洗浄では
期待できない、以下に述べる目的を達成する。 紫外線照射装置を解体せず、硬度成分等のスケール
が析出した光透過管を取り出すことなく、紫外線照射装
置内で、簡単、容易に、光透過管の硬度成分等のスケー
ルを洗浄する。 光透過管に析出した硬度成分等のスケールの洗浄作
業のために、紫外線照射処理を中断させず、紫外線照射
処理効率を向上させる。 少量の洗浄液を光透過管の表面に供給して、スクレ
ーパーリングによって光透過管に析出した硬度成分等の
スケールを洗浄し、洗浄液の使用量を低減することによ
って、洗浄処理コストを削減する。 洗浄処理作業の自動化を行い易くし、近年の装置の
オートメーション化に対応する。Further, the present invention achieves the following object which cannot be expected by conventional chemical cleaning with a cleaning solution such as a weak acid solution such as phosphoric acid or a scale inhibitor solution. The scale of hardness components and the like of the light transmission tube is easily and easily washed in the ultraviolet irradiation device without disassembling the ultraviolet irradiation device and taking out the light transmission tube on which the scale of hardness component and the like is deposited. The ultraviolet irradiation treatment is not interrupted for the purpose of cleaning the scale such as hardness components deposited on the light transmission tube, and the ultraviolet irradiation treatment efficiency is improved. By supplying a small amount of cleaning liquid to the surface of the light transmission tube and cleaning scales such as hardness components deposited on the light transmission tube by scraping, the amount of cleaning liquid used is reduced, thereby reducing the cleaning treatment cost. It facilitates automation of cleaning process work and supports recent automation of equipment.
【０００８】さらに、本発明は、光透過管の表面にフッ
素樹脂またはフッ素膜を被覆して光透過管の表面の微小
な凹凸部を少なくし、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、光透過管の表面に
微細な粒子の硬度成分等のスケールが付着し難くすると
ともに、また、この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、スケー
ルをスクレーパーリングによって、摩擦抵抗を極力低減
して、自動的に、スムースに剥離等の清掃を行い、光照
射ランプを内蔵した光透過管の光照射処理効率を向上さ
せることに目的がある。Further, according to the present invention, the surface of the light transmission tube is coated with a fluororesin or a fluorine film to reduce minute irregularities on the surface of the light transmission tube to improve the smoothness, thereby improving the light of the liquid to be treated. While performing the irradiation treatment, the scale such as the hardness component of the fine particles is less likely to adhere to the surface of the light transmission tube, and when the scale is attached to the light transmission tube whose smoothness is increased, During the light irradiation process of the liquid to be processed, the scale is scraped to reduce the frictional resistance as much as possible and automatically perform smooth cleaning such as peeling, and the light irradiation process of the light transmission tube with a built-in light irradiation lamp. The purpose is to improve efficiency.
【０００９】[0009]
【課題を解決するための手段】本発明は、光照射ランプ
を内蔵した光透過管にスクレーパーリングを設けた紫外
線照射装置に関するものであり、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光照射処理
を行うについて、光照射ランプを内蔵した光透過管の側
面に、内部に光透過管の表面に接触する洗浄液室を有す
るスクレーパーリングを、摺動可能に密着して挿填する
とともに、スクレーパーリングの洗浄液室に洗浄液供給
管を連通し、このスクレーパーリングを光透過管の側面
に沿って往復移動させることによって、光透過管の洗浄
を行うことに特徴がある。The present invention relates to an ultraviolet irradiating device having a scraper ring in a light transmission tube having a light irradiating lamp built therein, and sterilizing bacteria in a liquid to be treated, oxidative decomposition of organic matter, When performing light irradiation treatment such as decomposition of harmful substances, a scraper ring that has a cleaning liquid chamber inside that contacts the surface of the light transmission tube is slidably attached to the side surface of the light transmission tube with a built-in light irradiation lamp. The cleaning liquid supply pipe is connected to the cleaning liquid chamber of the scraper ring, and the light transmission pipe is cleaned by reciprocating the scraper ring along the side surface of the light transmission pipe.
【００１０】また、本発明は、前述した光照射ランプを
内蔵した光透過管にスクレーパーリングを設けた紫外線
照射装置において、スクレーパーリングの光透過管の表
面に接触する面であって、洗浄液室に近接する位置に、
Ｏリング等のシール材を挿填したことに特徴がある。Further, according to the present invention, in the ultraviolet irradiating device in which the scraper ring is provided in the light transmitting tube containing the above-mentioned light irradiating lamp, the surface of the scraper ring which comes into contact with the surface of the light transmitting tube, and the cleaning liquid chamber In close proximity,
It is characterized by inserting a sealing material such as an O-ring.
【００１１】さらに、本発明は、前述した光照射ランプ
を内蔵した光透過管にスクレーパーリングを設けた紫外
線照射装置において、光透過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移動枠にスクレーパ
ーリングを取り付け、スクレーパーリングを光透過管の
側面に沿って反復的に往復移動させることに特徴があ
る。Further, according to the present invention, in the ultraviolet irradiating device in which the scraper ring is provided in the light transmitting tube having the above-mentioned light irradiating lamp, the rotary screw shaft provided outside the light transmitting tube is directly driven by a driving means such as a motor. It is characterized by rotating and reversing and attaching a scraper ring to a moving frame that is screwably mounted on a rotary screw shaft, and reciprocatingly moving the scraper ring along the side surface of the light transmission tube.
【００１２】さらに、本発明は、前述した光照射ランプ
を内蔵した光透過管にスクレーパーリングを設けた紫外
線照射装置において、光照射ランプを内蔵する光透過管
の表面にフッ素樹脂またはフッ素膜を被覆して光透過管
の表面の平滑性と摺動性を高めることに特徴がある。Further, according to the present invention, in the ultraviolet irradiating device in which a scraper ring is provided in the light transmitting tube containing the light irradiating lamp, the surface of the light transmitting tube containing the light irradiating lamp is coated with a fluororesin or a fluorine film. It is characterized by enhancing the smoothness and slidability of the surface of the light transmission tube.
【００１３】さらに、本発明は、前述した光照射ランプ
を内蔵した光透過管にスクレーパーリングを設けた紫外
線照射装置において、スクレーパーリングとして、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スクレーパーリングを使用
することによって、光透過管に対する摩擦抵抗を低減す
ることに特徴がある。Further, the present invention provides an ultraviolet irradiation device in which a scraper ring is provided in a light transmission tube having a built-in light irradiation lamp as described above, wherein the scraper ring is made of tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer resin Teflon. The use of a scraper ring made of steel is characterized in that the frictional resistance to the light transmission tube is reduced.
【００１４】[0014]
【発明の実施の形態】本発明の光透過管にスクレーパー
リングを設けた紫外線照射装置を、細菌類を含む液体の
殺菌処理を例にして説明をすると、図１に示すように、
細菌類を含む液体の流入する紫外線照射処理装置の内部
に、光照射ランプとして、たとえば、紫外線ランプ１を
内蔵した石英ガラス製の光透過管２の横置状態（縦置状
態でもよい）に配置し、紫外線照射装置内に液体中の細
菌類の殺菌を行う処理流路を形成する。BEST MODE FOR CARRYING OUT THE INVENTION An ultraviolet irradiating device provided with a scraper ring on a light transmitting tube of the present invention will be described by taking a sterilizing treatment of a liquid containing bacteria as an example, as shown in FIG.
As a light irradiation lamp, for example, a quartz glass light transmission tube 2 having a built-in ultraviolet lamp 1 is arranged in a horizontal position (may be in a vertical position) inside a UV irradiation processing device into which a liquid containing bacteria flows. Then, a processing channel for sterilizing bacteria in the liquid is formed in the ultraviolet irradiation device.
【００１５】紫外線照射装置９内に配設した紫外線ラン
プ１を内蔵した光透過管２の側面には、図２に示すよう
に、カバー４を被せたゴム製のスクレーパーリング３を
摺動可能に、すなわち、光透過管２の側面に沿って左右
に往復移動可能に挿填するが、このスクレーパーリング
３の内部には、洗浄液供給管５と連通したリン酸溶液等
の洗浄液室６を設ける。なお、紫外線ランプ１を内蔵し
た石英ガラス製の光透過管２は縦置状態に配置し、スク
レーパーリング３を光透過管２の側面に沿って上下に往
復移動可能に挿填してもかまわない。As shown in FIG. 2, a rubber scraper ring 3 covered with a cover 4 is slidable on the side surface of a light transmitting tube 2 having a built-in ultraviolet lamp 1 arranged in an ultraviolet irradiator 9. That is, it is inserted so as to be capable of reciprocating right and left along the side surface of the light transmission tube 2, and inside the scraper ring 3, a cleaning liquid chamber 6 for communicating with the cleaning liquid supply pipe 5 such as a phosphoric acid solution is provided. The light transmission tube 2 made of quartz glass with the built-in ultraviolet lamp 1 may be arranged vertically, and the scraper ring 3 may be vertically reciprocally inserted along the side surface of the light transmission tube 2. .
【００１６】なお、紫外線ランプ１を内蔵させた石英ガ
ラス製の光透過管２の表面にフッ素樹脂を被覆し、光透
過管２の表面の凹凸部と歪みを解消し、平滑性と摺動性
を高めることによって、光透過管２に対するスクレーパ
ーリング３の摩擦抵抗を低減してもよく、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。The surface of the light transmitting tube 2 made of quartz glass containing the ultraviolet lamp 1 is coated with a fluororesin to eliminate irregularities and distortion on the surface of the light transmitting tube 2, thereby smoothing and slidability. The friction resistance of the scraper ring 3 with respect to the light transmission tube 2 may be reduced by increasing the value of FEP (tetrafluoroethylene-hexafluoropyrene copolymer resin). Fluorine resin other than those may be used.
Any material may be used as long as it does not deteriorate due to ultraviolet rays and has appropriate physical strength, and a coating film thickness of 0.3 to 0.5 mm is sufficient.
【００１７】光透過管２の表面にフッ素樹脂を被覆する
具体的な方法としては、たとえば、熱収縮性チューブ状
のフッ素樹脂を光透過管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
光透過管２の表面に張り合わせる等の公知の方法で行え
ばよい。また、光透過管２の表面の凹凸部と歪みを解消
する他の方法として、光透過管の表面を研磨してもかま
わない。As a specific method for coating the surface of the light transmitting tube 2 with a fluororesin, for example, a heat-shrinkable tubular fluororesin is covered on the surface of the light transmitting tube 2 and then heated to shrink. Alternatively, a known method such as bonding a thin film fluororesin to the surface of the light transmission tube 2 may be used. Further, as another method for eliminating the irregularities and distortion on the surface of the light transmission tube 2, the surface of the light transmission tube may be polished.
【００１８】スクレーパーリング３は、前述したよう
に、ゴム等の弾力性のある材質で製作した場合には、ス
クレーパーリング３の洗浄液室６の先端部分７も弾力性
があるので、光透過管２の表面に密着して接触するよう
にして、洗浄液室６に貯留しているリン酸溶液等の洗浄
液が、スクレーパーリング３と洗浄液室６との間隙より
漏洩しないようにできる。As described above, when the scraper ring 3 is made of an elastic material such as rubber, the tip portion 7 of the cleaning liquid chamber 6 of the scraper ring 3 is also elastic, so that the light transmitting tube 2 is provided. The cleaning liquid such as the phosphoric acid solution stored in the cleaning liquid chamber 6 can be prevented from leaking through the gap between the scraper ring 3 and the cleaning liquid chamber 6 by closely contacting the surface of the cleaning liquid chamber 6.
【００１９】スクレーパーリング３を、テフロンやステ
ンレスのような弾力性のない材質で製作した場合には、
スクレーパーリング３の先端部分７、すなわち、光透過
管２の表面に接触する面であって、洗浄液室６に近接す
る位置に、Ｏリング等のシール材８を挿填することによ
って、洗浄液がスクレーパーリング３と洗浄液室６との
間隙より漏洩しないようにできる。When the scraper ring 3 is made of an inelastic material such as Teflon or stainless steel,
By inserting a sealing material 8 such as an O-ring at the tip portion 7 of the scraper ring 3, that is, the surface which comes into contact with the surface of the light transmission tube 2 and is close to the cleaning liquid chamber 6, the cleaning liquid is scraped. It is possible to prevent leakage from the gap between the ring 3 and the cleaning liquid chamber 6.
【００２０】なお、スクレーパーリング３をゴム等の弾
力性のある材質で製作した場合にも、スクレーパーリン
グ３の先端部分７であって、洗浄液室６に近接する位置
に、Ｏリング等のシール材８を挿填して、洗浄液がスク
レーパーリング３と洗浄液室６との間隙より漏洩するこ
とを確実に防止してもかまわない。Even when the scraper ring 3 is made of an elastic material such as rubber, a sealing material such as an O-ring is provided at the tip portion 7 of the scraper ring 3 in the vicinity of the cleaning liquid chamber 6. 8 may be inserted to surely prevent the cleaning liquid from leaking through the gap between the scraper ring 3 and the cleaning liquid chamber 6.
【００２１】スクレーパー３としては、天然ゴム製、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
なるテフロン製のスクレーパーリング３を使用すること
が摩擦抵抗を一段と低減することから最適である。The scraper 3 may be made of natural rubber or synthetic rubber, but it is preferable to use a scraper ring 3 made of Teflon, particularly Teflon made of tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer resin. Is most suitable because it is further reduced.
【００２２】スクレーパーリング３は、光透過管２の側
面に沿って往復移動させて、スクレーパーリング３と、
スクレーパーリング３の洗浄液室６に貯留しているリン
酸溶液等の洗浄液の相乗作業によって、光透過管２の表
面に付着、析出した硬度成分等のスケールを始めとし
て、光透過管２の表面の微小な凹部に侵入した微細な粒
子状の硬度成分等のスケールを、剥離、洗浄するが、こ
のスクレーパーリング３の往復移動は、手動でもよい
し、油圧シリンダー等の公知の移動手段を利用してスク
レーパーリング３の往復移動を自動化させてもよい。The scraper ring 3 is reciprocally moved along the side surface of the light transmission tube 2 so that the scraper ring 3 and
By the synergistic work of the cleaning liquid such as the phosphoric acid solution stored in the cleaning liquid chamber 6 of the scraper ring 3, the scale of hardness components and the like adhered to and deposited on the surface of the light transmission tube 2 and the surface of the light transmission tube 2 The scale of fine particle-like hardness components and the like that has penetrated into the minute recesses is peeled off and washed. The scraper ring 3 may be reciprocally moved manually or by using a known moving means such as a hydraulic cylinder. The reciprocating movement of the scraper ring 3 may be automated.
【００２３】たとえば、図１に示すように、紫外線照射
処理装置９内の、光透過管２の外部に設けた回転ネジ軸
１１をモーター等の駆動手段１０で正転および逆転させ
て、回転ネジ軸１１に螺動可能に装填している移動枠１
２にスクレーパーリング３を取り付け、スクレーパーリ
ング３を光透過管２の側面に沿って、自動的に、反復し
て往復移動させると便利である。For example, as shown in FIG. 1, a rotating screw shaft 11 provided outside the light transmitting tube 2 in the ultraviolet irradiation processing device 9 is rotated forward and backward by a driving means 10 such as a motor to rotate the rotating screw. Moving frame 1 that is screwably mounted on the shaft 11.
It is convenient to attach the scraper ring 3 to 2 and to automatically and repeatedly reciprocate the scraper ring 3 along the side surface of the light transmission tube 2.
【００２４】紫外線照射処理装置９内に紫外線ランプ１
を内蔵した光透過管２の多数本を間隔をおいて配設した
場合には、各光透過管２にスクレーパーリング３を摺動
可能に、すなわち、光透過管２の側面に沿って往復移動
可能に挿填し、これらのスクレーパーリング３を、前述
した回転ネジ軸１１に螺動可能に装填した移動枠１２の
支持体１３に取り付けて一体として移動するように構成
してもよい。An ultraviolet lamp 1 is provided in the ultraviolet irradiation processing device 9.
When a large number of light transmitting tubes 2 each having a built-in are arranged at intervals, the scraper ring 3 can slide on each light transmitting tube 2, that is, reciprocating along the side surface of the light transmitting tube 2. The scraper rings 3 may be inserted as much as possible, and the scraper rings 3 may be attached to the supporting body 13 of the moving frame 12 screwably mounted on the rotary screw shaft 11 to move integrally.
【００２５】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・高圧ランプを使用することができ、その
他には、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７００ｎｍ以下の波長を
発する各種の光照射ランプを使用することができる。The main wavelength of the ultraviolet lamp 1 is 254n.
m low pressure germicidal lamp, dominant wavelengths 185 nm, 254 nm low pressure ozone lamp, dominant wavelengths 185 nm, 254 nm, 3
65nm medium and high pressure lamps can be used. In addition, solar lamps, chemical lamps, black light lamps, metal halide lamps, sodium lamps, and various other lamps that emit a wavelength of 700 nm or less can be used depending on the purpose of treatment. Light illumination lamps can be used.
【００２６】紫外線ランプ１を内臓した光透過管２の材
質としては、安価であることから石英ガラスを使用する
ことが多いが、前述したテフロンも使用でき、これらの
もの以外にも、フッ素樹脂等の紫外線透過率が高く、か
つ流体中に溶出物が流出しない材質であれば、どのよう
なものでも使用できる。Quartz glass is often used as the material of the light transmission tube 2 containing the ultraviolet lamp 1 because it is inexpensive, but the above-mentioned Teflon can also be used. Any material can be used as long as it has a high ultraviolet transmittance and the eluate does not flow out into the fluid.
【００２７】なお、スクレーパーリング３の材質は、前
述したゴム等の弾力性のある材質やテフロンやステンレ
スのような材質で製作する以外に、セラミックスやポリ
プロピレン、ポリエチレンのような耐薬品性のあるプラ
スチックを使用することができ、このスクレーパーリン
グ３には、前述したように、その内部に洗浄液室６を設
けて洗浄液供給管５と連通するとともに、スクレーパー
リング３の空間部を紫外線ランプ１を内臓した光透過管
２の側面に沿って往復移動可能に挿填するようにする。The scraper ring 3 may be made of elastic material such as rubber or Teflon or stainless steel as described above, or chemical resistant plastic such as ceramics, polypropylene or polyethylene. As described above, the scraper ring 3 is provided with the cleaning liquid chamber 6 to communicate with the cleaning liquid supply pipe 5, and the space portion of the scraper ring 3 has the ultraviolet lamp 1 incorporated therein. The light transmission tube 2 is inserted so as to be reciprocally movable along the side surface thereof.
【００２８】スクレーパーリング３の洗浄液室６に自動
的に供給する洗浄液としては、リン酸溶液が安価な点か
ら使用し易いが、リン酸溶液以外に、クエン酸溶液等の
弱酸溶液、その他、硬度成分等のスケールを洗浄して除
去できるものが使用でき、これらの溶液の濃度は、たと
えば、リン酸溶液等の弱酸溶液の場合には５〜１０％の
ものが適している。また、洗浄液はスクレーパーリング
３の洗浄液室６に加圧状態で満杯に供給し、洗浄液を光
透過管２の側面全体に接触させることが望ましい。As the cleaning liquid to be automatically supplied to the cleaning liquid chamber 6 of the scraper ring 3, a phosphoric acid solution is easy to use because it is inexpensive, but in addition to the phosphoric acid solution, a weak acid solution such as a citric acid solution, and hardness It is possible to use those capable of washing components such as scales to be removed, and the concentration of these solutions is preferably 5 to 10% in the case of a weak acid solution such as phosphoric acid solution. Further, it is desirable that the cleaning liquid is supplied to the cleaning liquid chamber 6 of the scraper ring 3 under pressure so that the cleaning liquid is brought into contact with the entire side surface of the light transmission tube 2.
【００２９】洗浄液による光透過管２の洗浄頻度として
は、光透過管２の側面に付着、析出した硬度成分等のス
ケールの量、特に、光透過管２の表面の微小な凹部に侵
入した微細な粒子状の硬度成分等のスケールの量、洗浄
液の種類や洗浄液の濃度等の条件に従って適宜決定する
が、通常の場合、２〜３回／日程度、光透過管２の側面
を洗浄するように、スクレーパーリング３を移動すれば
よい。The frequency of cleaning the light transmission tube 2 with the cleaning liquid is the amount of scale such as hardness component adhered to and deposited on the side surface of the light transmission tube 2, and in particular, the amount of fine particles penetrating into minute recesses on the surface of the light transmission tube 2. It is appropriately determined according to conditions such as the amount of scale such as a granular hardness component, the type of cleaning liquid, the concentration of cleaning liquid, etc., but normally, the side surface of the light transmission tube 2 should be cleaned about 2 to 3 times / day. Then, the scraper ring 3 may be moved.
【００３０】次に、本発明の光透過管２にスクレーパー
リング３を設けた紫外線照射装置９の操作について説明
すると、細菌類を含む被処理液を紫外線照射処理装置９
に流入させ、被処理液中の細菌類の殺菌処理を行ってい
ると、紫外線ランプ１を内蔵した光透過管２の側面に、
被処理液に含まれている鉄成分やカルシウム成分の硬度
成分等のスケールが付着、析出するとともに、光透過管
２の側面の微小な凹部に、微細な粒子状の硬度成分等の
スケールが侵入して、光透過管２に内蔵した紫外線ラン
プ１の紫外線照射量が低下する。Next, the operation of the ultraviolet irradiator 9 in which the scraper ring 3 is provided on the light transmission tube 2 of the present invention will be described. The liquid to be treated containing bacteria is treated with the ultraviolet irradiator 9.
When the bacteria in the liquid to be treated are sterilized, the side surface of the light transmission tube 2 containing the ultraviolet lamp 1
Scales such as hardness components such as iron components and calcium components contained in the liquid to be treated adhere and deposit, and scales such as fine particle-shaped hardness components penetrate into minute recesses on the side surface of the light transmission tube 2. As a result, the ultraviolet irradiation amount of the ultraviolet lamp 1 built in the light transmission tube 2 is reduced.
【００３１】そこで、紫外線ランプ１を内蔵した光透過
管２に挿填しているスクレーパーリング３の洗浄液室６
内に、洗浄液タンク（図示せず）から洗浄液供給管５を
経て、リン酸溶液等の洗浄液を加圧して満杯状態に供給
し、モーター等の駆動手段１０によって回転ネジ軸１１
を回転させて移動枠１２を往復移動させることによっ
て、スクレーパーリング３を光透過管２の側面に沿って
往復移動させて光透過管２の洗浄を行う。なお、この場
合、洗浄液室６と洗浄液タンクを洗浄液流出管（図示せ
ず）で連通し、洗浄液室６の洗浄液を循環させて洗浄し
てもよく、また、汚染した洗浄液を洗浄液タンクに戻さ
ずに、洗浄排液タンク（図示せず）に流出させてもよ
い。Therefore, the cleaning liquid chamber 6 of the scraper ring 3 inserted in the light transmission tube 2 containing the ultraviolet lamp 1 therein.
A cleaning solution such as a phosphoric acid solution is pressurized and supplied to a full state from a cleaning solution tank (not shown) through a cleaning solution supply pipe 5, and a rotary screw shaft 11 is driven by a driving means 10 such as a motor.
Is rotated to reciprocate the moving frame 12, whereby the scraper ring 3 is reciprocated along the side surface of the light transmission tube 2 to clean the light transmission tube 2. In this case, the cleaning liquid chamber 6 and the cleaning liquid tank may be connected by a cleaning liquid outflow pipe (not shown) to circulate the cleaning liquid in the cleaning liquid chamber 6 for cleaning, or the contaminated cleaning liquid may not be returned to the cleaning liquid tank. Alternatively, it may be allowed to flow out to a cleaning drainage tank (not shown).
【００３２】すなわち、スクレーパーリング３を光透過
管２の側面に沿って往復移動させて、スクレーパーリン
グ３の剥離作用と、スクレーパーリング３の洗浄液室６
に貯留している少量のリン酸溶液等の洗浄液の洗浄作用
との相乗作用によって、光透過管２の表面に付着、析出
した硬度成分等のスケールを始めとして、光透過管２の
表面の微小な凹部に侵入した微細な粒子状の硬度成分等
のスケールを、紫外線照射処理を中断せずに、連続的
に、剥離、洗浄することによって、光透過管２に内蔵し
た紫外線ランプ１の紫外線照射量を回復させる。That is, the scraper ring 3 is reciprocally moved along the side surface of the light transmitting tube 2 so that the scraper ring 3 is peeled off and the cleaning liquid chamber 6 of the scraper ring 3 is moved.
By the synergistic action with the cleaning action of a small amount of cleaning solution such as phosphoric acid solution stored in the, the scale of the hardness component and the like adhered to and deposited on the surface of the light transmission tube 2 and the minute surface of the light transmission tube 2 Ultraviolet irradiation of the ultraviolet lamp 1 built in the light transmission tube 2 by continuously peeling off and cleaning the scale of fine particle-like hardness components, etc. that have entered the large concave portion without interrupting the ultraviolet irradiation treatment. Restore the amount.
【００３３】前述したスクレーパーリング３を光透過管
２の側面に沿って往復移動させて光透過管２を洗浄する
操作は、紫外線照射による殺菌処理中に、光透過管２の
紫外線ランプ１の紫外線照射量の低下を、公知の紫外線
測定機器によって検知して自動的に行ってもよいし、あ
るいは、被処理液中の細菌類含有量や紫外線照射による
殺菌処理条件等を確認して、殺菌処理中に、タイマー等
で設定して、定期的に、間欠的に行ってもよい。The operation of cleaning the light transmitting tube 2 by reciprocating the scraper ring 3 along the side surface of the light transmitting tube 2 is performed by sterilizing the ultraviolet ray during the sterilization treatment. The decrease in the irradiation dose may be detected automatically by a known ultraviolet ray measuring device, or it may be sterilized by confirming the bacterial content in the liquid to be treated and the sterilization condition by ultraviolet irradiation. Alternatively, a timer or the like may be set, and the operation may be performed periodically or intermittently.
【００３４】なお、フッ素樹脂を被覆した光透過管２を
使用して被処理液の紫外線照射による殺菌処理を行った
場合には、本来、光透過管２の表面にフッ素樹脂を被覆
して光透過管２の表面の凹部を極力少なくしているの
で、フッ素樹脂を被覆していない場合に比較して、光透
過管２の表面の凹部に侵入して行く微細な粒子状の硬度
成分等のスケールの量は非常に少なく、また、光透過管
２の表面にフッ素樹脂を被覆して平滑性を高めているの
で、液体中の硬度成分等のスケールは付着し難いため
に、硬度成分等のスケールによる光透過管２の汚染は少
ない。When the liquid to be treated is sterilized by irradiation of ultraviolet rays using the light-transmitting tube 2 coated with a fluororesin, the surface of the light-transmitting tube 2 is originally coated with a fluororesin to prevent light irradiation. Since the recesses on the surface of the transmission tube 2 are made as small as possible, compared with the case where the fluororesin is not coated, the fine particle-like hardness components entering the recesses on the surface of the light transmission tube 2 can be prevented. The scale amount is very small, and since the surface of the light transmission tube 2 is coated with a fluororesin to improve the smoothness, the scale such as the hardness component in the liquid is hard to adhere to the surface, so that the hardness component The light transmission tube 2 is less contaminated by the scale.
【００３５】しかし、被処理液の紫外線照射による殺菌
処理を継続していると、光透過管２の表面に僅かに残存
する凹部に微細な粒子状の硬度成分等のスケールが侵入
し、また光透過管２の表面にも硬度成分等のスケールが
付着し始めて、紫外線照射量が低下するので、被処理液
の紫外線照射による殺菌処理を継続しながら、摺動性を
高めるとともに摩擦抵抗を軽減したスクレーパーリング
３とスクレーパーリング３の洗浄液室６内の洗浄液の相
乗作用によって、光透過管２の表面の凹部に侵入した硬
度成分等のスケールを溶解し、同時に、光透過管２の表
面に付着、析出した硬度成分等のスケールを剥離、洗浄
して、光透過管２に内蔵した光照射ランプ１の光照射量
を簡単、確実に回復させ、紫外線照射処理流量を増加さ
せる。However, if the sterilization treatment of the liquid to be treated is continued by irradiating it with ultraviolet rays, scales such as fine particle-like hardness components intrude into the slightly remaining recesses on the surface of the light transmission tube 2, and the Since scales such as hardness components start to adhere to the surface of the transmission tube 2 and the amount of UV irradiation decreases, the slidability is increased and the frictional resistance is reduced while continuing the sterilization treatment by UV irradiation of the liquid to be treated. Due to the synergistic action of the scraper ring 3 and the cleaning liquid in the cleaning liquid chamber 6 of the scraper ring 3, the scale such as the hardness component that has entered the concave portion of the surface of the light transmission tube 2 is dissolved, and at the same time, adhered to the surface of the light transmission tube 2, The scale of the deposited hardness component and the like is peeled off and washed to easily and surely recover the light irradiation amount of the light irradiation lamp 1 built in the light transmission tube 2 and increase the ultraviolet irradiation processing flow rate.
【００３６】[0036]
【実施例１】株式会社日本フォトサイエンス製の（製品
番号ＡＹ−４）の下水処理用の２５３．７ｎｍの波長、
１００Ｖの低圧水銀ランプを内蔵させた石英ガラス製の
光透過管を配設した紫外線殺菌装置を３セット設置し、
本発明装置である第一セットの光透過管には、５ｃｃの
容量を有する洗浄液室を設けたゴム製のスクレーパーリ
ングを往復移動可能に挿填し、従来装置である第二セッ
トの光透過管には、単なるゴム製のスクレーパーリング
を往復移動可能に挿填し、従来装置である第三セットの
光透過管には、スクレーパーリングを挿填しなかった。[Example 1] 253.7 nm wavelength for sewage treatment (product number AY-4) manufactured by Nippon Photoscience Co., Ltd.,
Installed 3 sets of UV sterilizer equipped with a quartz glass light transmission tube with a built-in 100V low-pressure mercury lamp,
A rubber scraper ring provided with a cleaning liquid chamber having a capacity of 5 cc is reciprocally inserted into the first set of light transmission tubes which is the device of the present invention, and the second set of light transmission tubes which is the conventional device. In the above, a simple rubber scraper ring was inserted so as to be capable of reciprocating, and the scraper ring was not inserted in the third set of light transmission tubes, which is a conventional device.
【００３７】そして、前述した紫外線殺菌装置の各セッ
ト内に、大腸菌１０3 個／ｍｌを含む下水二次処理水を
０．０８〜１．１ｍ／秒の流速で流入させ、紫外線を
２．４ｍｗ／ｃｍ2 の条件で照射して、下水二次処理水
中の大腸菌の殺菌処理を行い、本発明装置の第一セット
においては、スクレーパーリングの洗浄液室に５％リン
酸溶液を供給しながら、スクレーパーリングを１日に２
回往復移動させて光透過管の洗浄を行い、従来装置の第
二セットにおいては、スクレーパーリングを１日に２回
往復移動させて光透過管の洗浄を行い、従来装置の第三
セットにおいては、光透過管の洗浄を行わなかった。Then, sewage secondary treated water containing 10 3 cells / ml of Escherichia coli was caused to flow into each set of the above-mentioned ultraviolet sterilizer at a flow rate of 0.08 to 1.1 m / sec, and ultraviolet rays were 2.4 mw. Irradiation under the condition of / cm 2 to sterilize the Escherichia coli in the sewage secondary treated water. In the first set of the device of the present invention, the scraper ring is supplied with a 5% phosphoric acid solution while being supplied with the scraper. 2 rings a day
The light transmitting tube is washed back and forth twice to clean the light transmitting tube. In the second set of the conventional apparatus, the scraper ring is moved back and forth twice a day to clean the light transmitting tube. The light transmission tube was not washed.
【００３８】前述した紫外線殺菌処理を６ケ月行ったと
ころ下記のような結果になった。 紫外線透過率 99% 殺菌流量 消費電力 効率比 (石英カ゛ラス管) (ランフ゜1本当り) (99%殺菌に要する) 本発明装置 98 ％ 9.8ｍ3 ／hr 10.2W/m3 2.33 （第一セット） 従来装置 65 ％ 6.5ｍ3 ／hr 15.4W/m3 1.55 （第二セット） 従来装置 42 ％ 4.2ｍ3 ／hr 23.8W/m3 1.00 （第三セット） ＊紫外線透過率は光透過管内の紫外線透過率を示す。 ＊99% 殺菌流量は大腸菌を99％殺菌するための低圧水銀ランプ１本当た りの処理流量を示す。When the above-mentioned ultraviolet sterilization treatment was carried out for 6 months, the following results were obtained. Ultraviolet transmittance 99% Sterilization flow rate Power consumption efficiency ratio (quartz glass tube) (per lamp) (99% sterilization required) Device of the present invention 98% 9.8m 3 / hr 10.2W / m 3 2.33 (1st set) Conventional device 65% 6.5m 3 / hr 15.4W / m 3 1.55 (2nd set) Conventional device 42% 4.2m 3 / hr 23.8W / m 3 1.00 (3rd set) * UV transmittance is the UV in the light transmission tube The transmittance is shown. * The 99% sterilization flow rate indicates the processing flow rate per low-pressure mercury lamp for 99% sterilization of E. coli.
【００３９】[0039]
【実施例２】本発明装置として、密閉式紫外線装置内
に、２５４ｎｍ付近の紫外線を照射する１６０Ｖの紫外
線ランプ（株式会社日本フォトサイエンス製ＡＹ−１
０）を内蔵させた石英ガラス製の光透過管を６本配設す
るが、各透光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、この各光透過管には、５ｃｃ
の容量を有する洗浄液室を設けた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、両端に突起を付けたスクレーパーリングを摺動可能
に挿填した。[Embodiment 2] As a device of the present invention, a 160 V ultraviolet lamp (AY-1 manufactured by Nippon Photoscience Co., Ltd.) for irradiating ultraviolet light of around 254 nm in a closed ultraviolet device.
0) built-in six quartz glass light-transmitting tubes, each of which has a coating of about 0.5 mm of tetrafluoroethylene-hexafluoropyrene copolymer resin (FEP) on the surface. While forming, each light transmission tube has 5 cc
A scraper ring made of tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer resin having a cleaning liquid chamber having a capacity of 3 and having protrusions at both ends was slidably inserted.
【００４０】従来の比較装置として、前述した構造と同
様の構造の紫外線殺菌装置であるが、表面にテトラフロ
ロエチレン−ヘキサフロロピレン共重合樹脂を被覆しな
い光透過管であって、この各光透過管にゴム製スクレー
パーリングを摺動可能に挿填した。As a conventional comparison device, an ultraviolet sterilizer having a structure similar to that described above is used, but a light transmission tube whose surface is not coated with tetrafluoroethylene-hexafluoropyrene copolymer resin, and each of the light transmission tubes A rubber scraper ring was slidably inserted into the tube.
【００４１】前述した本発明装置と従来の比較装置内
に、１０5 個／ｍｌの一般細菌を含む海水を３０ｍ3 ／
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１８回／毎分、スクレーパーリングの移動速度は９ｃ
ｍ／毎分、運転頻度は２往復／日の条件で紫外線照射を
して一般細菌の殺菌を行い、一般細菌１０2 個／ｍｌ以
下の処理水を得た。In the above-mentioned device of the present invention and the conventional comparison device, sea water containing 10 5 bacteria / ml of general bacteria was added in an amount of 30 m 3 / m 2 .
At the same time, the rotation speed of the screw shaft was 18 times / min, and the moving speed of the scraper ring was 9c.
m / min, operating frequency was 2 reciprocations / day, and ultraviolet irradiation was performed to sterilize general bacteria to obtain treated water of 10 2 general bacteria / ml or less.
【００４２】本発明装置においては、前述した紫外線照
射処理を１年間継続しても海水中の硬度成分、鉄分等が
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、一定の殺菌効果を維持した。この時の処理コスト
は１．９４円／ｍ3 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, hardness components in the seawater, iron components, etc. do not adhere to the translucent tube, and the ultraviolet transmittance of the ultraviolet lamp does not decrease, so that it is constant. Maintained the bactericidal effect. The processing cost at this time was as low as 1.94 yen / m 3 .
【００４３】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３ケ月間継続した時点
で、紫外線照射処理継続中に海水中の硬度成分、鉄分等
が透光管に付着し、紫外線ランプの紫外線透過率は６０
％に低下し、海水中の一般細菌も１０5 〜１０4 個／ｍ
ｌと増加したため、２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光透過筒を
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２．２５円／ｍ3 と上昇
した。On the other hand, in the conventional comparison device, when the above-mentioned ultraviolet irradiation treatment was continued for three months, hardness components, iron components, etc. in seawater adhered to the light-transmitting tube while the ultraviolet irradiation treatment was continued. , The UV transmittance of UV lamp is 60
%, And general bacteria in seawater are 10 5 to 10 4 / m
Since it increased to 1, the UV treatment had to be interrupted once every two months to dismantle the apparatus, and the light-transmitting cylinder to which the scale had adhered was taken out and the cleaning work such as peeling and cleaning had to be performed. Therefore, the processing cost increased to 2.25 yen / m 3 .
【００４４】[0044]
【発明の効果】本発明は、スクレーパーリングの剥離作
用と、スクレーパーリングの洗浄液室に貯留している少
量の洗浄液の洗浄作用との相乗作用によって、光透過管
の表面に侵入、付着、析出した硬度成分等のスケールを
剥離、洗浄できることは無論のこと、従来装置のゴムや
テフロン等のスクレーバーリングによる物理的洗浄では
洗浄できない、光透過管の表面の微小な凹部に入り込ん
た微細な粒子状の硬度成分等のスケールを、スクレーパ
ーリングと少量の洗浄液によって、剥離、洗浄して、光
透過管に内蔵した光照射ランプの光照射量を、簡単、確
実に回復（９８％程度）させる効果、光照射処理流量の
増加（１．５〜２倍）させる効果、光照射ランプの電力
効率（１．５〜２．３倍）を向上できる効果を達成で
き、光照射効率を格段に改善できるメリットがある。INDUSTRIAL APPLICABILITY According to the present invention, by the synergistic effect of the scraping action of the scraper ring and the washing action of a small amount of the washing liquid stored in the washing liquid chamber of the scraper ring, the invasion, adhesion and deposition on the surface of the light transmission tube are performed. Needless to say, it is possible to remove and clean the scale of hardness components, etc., which cannot be cleaned by the physical cleaning of the conventional equipment such as rubber or Teflon with a scraper ring. The scale of hardness component etc. is peeled and washed by scraper ring and a small amount of cleaning liquid, and the light irradiation amount of the light irradiation lamp built in the light transmission tube is easily and surely recovered (about 98%). The effect of increasing the irradiation processing flow rate (1.5 to 2 times) and the effect of improving the power efficiency of the light irradiation lamp (1.5 to 2.3 times) can be achieved, and the light irradiation efficiency can be improved. There is a merit that can be improved on.
【００４５】また、本発明は、従来の弱酸溶液やスケー
ル防止剤溶液等の化学的洗浄の場合と比較して、少量の
洗浄液を無駄なく光透過管の表面に供給して、光透過管
に侵入、付着、析出した硬度成分等のスケールの全てを
洗浄できるので、洗浄液の使用量を低減して洗浄処理コ
ストを飛躍的に削減することが可能である。Further, according to the present invention, a small amount of cleaning liquid is supplied to the surface of the light transmission tube without waste as compared with the conventional chemical cleaning of a weak acid solution or a scale inhibitor solution. Since it is possible to clean all scales such as hardness components that have penetrated, adhered, and precipitated, it is possible to reduce the amount of cleaning liquid used and dramatically reduce the cleaning processing cost.
【００４６】さらに、本発明は、従来の弱酸溶液やスケ
ール防止剤溶液等の化学的洗浄の場合と異なり、光照射
装置を解体せず、硬度成分等のスケールが析出した光透
過管を取り出すことなく、光照射装置内で、簡単、確実
に、光透過管の硬度成分等のスケールを洗浄できる効
果、光照射処理を中断させない効果、洗浄処理作業の自
動化して装置のオートメーション化に対応できる効果が
あるために、光照射効率を大幅に向上させる利点があ
る。Further, according to the present invention, unlike the case of the conventional chemical cleaning with a weak acid solution or a scale inhibitor solution, the light irradiation device is not disassembled, and the light transmission tube on which scales such as hardness components are deposited is taken out. Effect that can easily and reliably clean the scale of the hardness component of the light transmission tube in the light irradiation device, the effect that does not interrupt the light irradiation process, and the effect that the cleaning process work can be automated and the device can be automated. Therefore, there is an advantage that the light irradiation efficiency is significantly improved.
【００４７】本発明は、光透過管の外部に設けた回転ネ
ジ軸の回転によって移動枠にスクレーパーリングを取り
付けて、クレーパーリングを光透過管の側面に沿って反
復的に往復移動させて光透過管を洗浄することによっ
て、光照射装置の自動化に応じることが可能であり、ま
た、光照射ランプを内蔵した光透過管を多数本設けた処
理量の多い光照射装置に対応することが可能である。According to the present invention, the scraper ring is attached to the moving frame by the rotation of the rotating screw shaft provided outside the light transmission tube, and the scraper ring is repeatedly moved back and forth along the side surface of the light transmission tube to generate light. By cleaning the transmission tube, it is possible to respond to automation of the light irradiation device, and it is also possible to support a high-throughput light irradiation device that is equipped with multiple light transmission tubes with built-in light irradiation lamps. Is.
【００４８】本発明は、スクレーパーリングの光透過管
の表面に接触する面であって、洗浄液室に近接する位置
に、Ｏリング等のシール材を挿填することによって、洗
浄液がスクレーパーリングと洗浄液室との間隙より漏洩
することを確実に防止することも可能である。According to the present invention, by inserting a sealing material such as an O-ring in the surface of the scraper ring which comes into contact with the surface of the light transmission tube and in the vicinity of the cleaning liquid chamber, the cleaning liquid is separated from the cleaning liquid. It is also possible to reliably prevent leakage from the gap with the chamber.
【００４９】本発明は、特に、光透過管にフッ素樹脂等
を被覆して平滑性を付与することによって、硬度成分
等のスケールが付着し難くなり、付着したスケールも剥
離し易くなり、スクレーパーリングの摺動性を向上
し、摩擦抵抗を軽減してスケールを剥離でき、スクレ
ーパーリングの洗浄液室の洗浄液によってスケールを凹
部の隅々まで洗浄して剥離すること等の相乗効果によっ
て、光透過管の表面に侵入、付着、析出した全てのスケ
ールを相乗的に剥離、洗浄して、光透過管に内蔵した光
照射ランプの光照射量を、簡単、確実に回復（９９％程
度）させ、光照射処理流量の増加（１．８〜２．３倍）
させ、光照射ランプの電力効率（１．７〜２．５倍）を
向上でき、光照射効率を格段に改善できるメリットがあ
る。According to the present invention, in particular, by coating the light transmission tube with a fluororesin or the like to impart smoothness, it becomes difficult for scales such as hardness components to adhere, and the adhered scales are easily peeled off. The scale can be peeled off by improving the sliding property of the scale and reducing the frictional resistance, and by the synergistic effect of cleaning and peeling the scale to every corner of the recess with the cleaning liquid in the cleaning liquid chamber of the scraper ring, Synergistically removes and scales all scales that have invaded, adhered or deposited on the surface, and recovers the light irradiation amount of the light irradiation lamp built into the light transmission tube easily and surely (about 99%). Increase in processing flow rate (1.8 to 2.3 times)
Therefore, the power efficiency of the light irradiation lamp (1.7 to 2.5 times) can be improved, and the light irradiation efficiency can be remarkably improved.
【図１】各光透過管の側面に摺動可能に挿填したスクレ
ーパーリングを移動枠に一体的に取り付けて、光透過管
の側面に沿って往復移動可能に構成した紫外線照射装置
の説明図である。FIG. 1 is an explanatory view of an ultraviolet irradiation device in which a scraper ring slidably inserted into a side surface of each light transmission tube is integrally attached to a moving frame so that the scraper ring can reciprocate along the side surface of the light transmission tube. Is.
【図２】紫外線ランプを内蔵した光透過管の側面に、洗
浄液室を設けたスクレーパーリングを摺動可能に挿填し
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 scraper ring provided with a cleaning liquid chamber is slidably inserted into a side surface of a light transmission tube having a built-in ultraviolet lamp.
１ 紫外線ランプ ２ 光透過管 ３ スクレーパーリング ４ カバー ５ 洗浄液供給管 ６ 洗浄液室 ７ 先端部分 ８ シール材 ９ 紫外線照射装置 10 駆動手段 11 回転ネジ軸 12 移動枠 13 支持体 1 UV lamp 2 Light transmission tube 3 Scraper ring 4 Cover 5 Cleaning liquid supply pipe 6 Cleaning liquid chamber 7 Tip part 8 Sealing material 9 Ultraviolet irradiation device 10 Driving means 11 Rotating screw shaft 12 Moving frame 13 Support
Claims (5)
分解、有害物質の分解等の光照射処理を行う光照射ラン
プを内蔵した光透過管の側面に、内部に光透過管の表面
に接触する洗浄液室を有するスクレーパーリングを、摺
動可能に密着して挿填するとともに、スクレーパーリン
グの洗浄液室に洗浄液供給管を連通し、このスクレーパ
ーリングを光透過管の側面に沿って往復移動させること
によって、光透過管の洗浄を行う光透過管にスクレーパ
ーリングを設けた紫外線照射装置。1. A surface of a light-transmitting tube inside a light-transmitting tube having a light-irradiating lamp for performing light irradiation treatment such as sterilization of bacteria in a liquid to be treated, oxidative decomposition of organic substances, decomposition of harmful substances, etc. The scraper ring that has a cleaning liquid chamber that comes into contact with is slidably and closely inserted, and the cleaning liquid supply pipe is connected to the cleaning liquid chamber of the scraper ring, and this scraper ring is reciprocated along the side of the light transmission pipe. An ultraviolet irradiation device in which a scraper ring is provided on the light transmission tube for cleaning the light transmission tube.
接触する面であって、洗浄液室に近接する位置に、Ｏリ
ング等のシール材を挿填した請求項１記載のスクレーパ
ーリングを設けた紫外線照射装置。2. The ultraviolet ray provided with the scraper ring according to claim 1, wherein a sealant such as an O-ring is inserted in a position of the scraper ring that comes into contact with the surface of the light transmission tube and is close to the cleaning liquid chamber. Irradiation device.
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移動枠にスクレーパーリン
グを取り付け、スクレーパーリングを光透過管の側面に
沿って反復的に往復移動させる請求項１または請求項２
記載のスクレーパーリングを設けた紫外線照射装置。3. A rotating screw shaft provided outside the light transmission tube is rotated forward and backward by a driving means such as a motor, and a scraper ring is attached to a moving frame screwably mounted on the rotating screw shaft. The scraper ring is repeatedly reciprocated along the side surface of the light transmission tube.
An ultraviolet irradiation device provided with the scraper ring described.
にフッ素樹脂またはフッ素膜を被覆した請求項１または
請求項２あるいは請求項３記載のスクレーパーリングを
設けた紫外線照射装置。4. An ultraviolet irradiation device provided with the scraper ring according to claim 1, 2 or 3, wherein the surface of a light transmission tube containing a light irradiation lamp is coated with a fluorine resin or a fluorine film.
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スクレーパーリ
ングを設けた紫外線照射装置。5. An ultraviolet irradiation device provided with a scraper ring using a Teflon ring made of tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer resin as the scraper ring.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7462297A JP3801720B2 (en) | 1996-03-14 | 1997-03-12 | Ultraviolet irradiation device with scraper ring on light transmission tube |
| US09/038,343 US6013917A (en) | 1997-03-12 | 1998-03-11 | UV ray irradiation apparatus having scraper rings fitted to light transmission tubes |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8-84549 | 1996-03-14 | ||
| JP8454996 | 1996-03-14 | ||
| JP7462297A JP3801720B2 (en) | 1996-03-14 | 1997-03-12 | Ultraviolet irradiation device with scraper ring on light transmission tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09299938A true JPH09299938A (en) | 1997-11-25 |
| JP3801720B2 JP3801720B2 (en) | 2006-07-26 |
Family
ID=26415788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7462297A Expired - Fee Related JP3801720B2 (en) | 1996-03-14 | 1997-03-12 | Ultraviolet irradiation device with scraper ring on light transmission tube |
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| Country | Link |
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| JP (1) | JP3801720B2 (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006187697A (en) * | 2005-01-04 | 2006-07-20 | Hitachi Ltd | Filtration cleaning apparatus |
| JP2006526498A (en) * | 2003-06-02 | 2006-11-24 | オテヴェ・ソシエテ・アノニム | UV water sterilizer |
| JP2008532738A (en) * | 2005-03-03 | 2008-08-21 | ニコライ，ライオネル | Spray device with excellent decontamination |
| JP2011050828A (en) * | 2009-08-31 | 2011-03-17 | Chiyoda Kohan Co Ltd | Ultraviolet irradiation device |
| JP2014057964A (en) * | 2013-12-03 | 2014-04-03 | Chiyoda Kohan Co Ltd | Ultraviolet irradiation apparatus |
| JP2014161768A (en) * | 2013-02-22 | 2014-09-08 | Saitama Univ | Ultraviolet irradiating water treatment apparatus |
| JP2016059867A (en) * | 2014-09-17 | 2016-04-25 | 月島機械株式会社 | Treatment method for water purification plant and facility therefor |
| JP2019516367A (en) * | 2016-05-11 | 2019-06-20 | ウラジミロヴィッチ クレヴァキン，ラスラン | Ultraviolet processing module unit for powdery grain products |
| KR20190124375A (en) * | 2018-04-26 | 2019-11-05 | 주식회사 포스코 | Degreasing reinforcement cleaning apparatus for surface of material and cleaning method using the same |
| CN111704200A (en) * | 2020-06-24 | 2020-09-25 | 荆门宁杰机电技术服务有限公司 | Water purification unit with function of disinfecting |
| CN112569762A (en) * | 2019-09-30 | 2021-03-30 | 夏万春 | Ultraviolet printing waste gas treatment system |
| WO2022265118A1 (en) * | 2021-06-18 | 2022-12-22 | 株式会社 潤工社 | Deposit suppression structure for heat exchanger and heat exchanger having deposit suppression structure |
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| KR101775845B1 (en) * | 2016-11-04 | 2017-09-06 | 김형규 | Sterilizing method of waste nutrient solution using uv lamp |
-
1997
- 1997-03-12 JP JP7462297A patent/JP3801720B2/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006526498A (en) * | 2003-06-02 | 2006-11-24 | オテヴェ・ソシエテ・アノニム | UV water sterilizer |
| JP2006187697A (en) * | 2005-01-04 | 2006-07-20 | Hitachi Ltd | Filtration cleaning apparatus |
| JP2008532738A (en) * | 2005-03-03 | 2008-08-21 | ニコライ，ライオネル | Spray device with excellent decontamination |
| JP2011050828A (en) * | 2009-08-31 | 2011-03-17 | Chiyoda Kohan Co Ltd | Ultraviolet irradiation device |
| JP2014161768A (en) * | 2013-02-22 | 2014-09-08 | Saitama Univ | Ultraviolet irradiating water treatment apparatus |
| JP2014057964A (en) * | 2013-12-03 | 2014-04-03 | Chiyoda Kohan Co Ltd | Ultraviolet irradiation apparatus |
| JP2016059867A (en) * | 2014-09-17 | 2016-04-25 | 月島機械株式会社 | Treatment method for water purification plant and facility therefor |
| JP2019516367A (en) * | 2016-05-11 | 2019-06-20 | ウラジミロヴィッチ クレヴァキン，ラスラン | Ultraviolet processing module unit for powdery grain products |
| KR20190124375A (en) * | 2018-04-26 | 2019-11-05 | 주식회사 포스코 | Degreasing reinforcement cleaning apparatus for surface of material and cleaning method using the same |
| CN112569762A (en) * | 2019-09-30 | 2021-03-30 | 夏万春 | Ultraviolet printing waste gas treatment system |
| CN111704200A (en) * | 2020-06-24 | 2020-09-25 | 荆门宁杰机电技术服务有限公司 | Water purification unit with function of disinfecting |
| WO2022265118A1 (en) * | 2021-06-18 | 2022-12-22 | 株式会社 潤工社 | Deposit suppression structure for heat exchanger and heat exchanger having deposit suppression structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3801720B2 (en) | 2006-07-26 |
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