JPH09276859A - Ultraviolet irradiation treatment apparatus fitted with stream-straightening mechanism - Google Patents
Ultraviolet irradiation treatment apparatus fitted with stream-straightening mechanismInfo
- Publication number
- JPH09276859A JPH09276859A JP11715796A JP11715796A JPH09276859A JP H09276859 A JPH09276859 A JP H09276859A JP 11715796 A JP11715796 A JP 11715796A JP 11715796 A JP11715796 A JP 11715796A JP H09276859 A JPH09276859 A JP H09276859A
- Authority
- JP
- Japan
- Prior art keywords
- ultraviolet
- fluid
- ultraviolet ray
- ultraviolet irradiation
- bacteria
- 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
- 230000007246 mechanism Effects 0.000 title claims abstract description 16
- 238000011282 treatment Methods 0.000 title abstract description 26
- 239000012530 fluid Substances 0.000 claims abstract description 42
- 239000000126 substance Substances 0.000 claims abstract description 18
- 241000894006 Bacteria Species 0.000 claims abstract description 13
- 230000001954 sterilising effect Effects 0.000 claims abstract description 10
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 10
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 7
- 238000006864 oxidative decomposition reaction Methods 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims description 22
- 239000010865 sewage Substances 0.000 abstract description 4
- 229910021642 ultra pure water Inorganic materials 0.000 abstract description 4
- 239000012498 ultrapure water Substances 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 10
- 239000007789 gas Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000003814 drug Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 241000588724 Escherichia coli Species 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000000700 radioactive tracer Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 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
- C02F2201/328—Having flow diverters (baffles)
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/02—Fluid flow conditions
- C02F2301/022—Laminar
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、流体の紫外線照射処理
を行う紫外線透過管の下流側の側面にフィン状または平
板状の整流機構を設けて、紫外線透過管を通過した流体
の渦流を防止する紫外線透過管の整流機構を付設した流
体紫外線照射処理装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a fin-shaped or flat plate-shaped rectifying mechanism on the downstream side surface of an ultraviolet ray transmitting tube for irradiating an ultraviolet ray on a fluid to prevent vortex flow of the fluid passing through the ultraviolet ray transmitting tube. The present invention relates to a fluid ultraviolet irradiation processing apparatus provided with a rectifying mechanism for an ultraviolet transmission tube.
【０００２】[0002]
【従来の技術】流体の紫外線照射処理装置は、半導体や
医薬品の製造工程で使用する流体（超純水等の液体やク
リーンガス等の気体）を製造する際、各種産業排水に含
まれている有機物や有害物質を分解除去する際、下水処
理水に含まれてい細菌類を消毒する際などに用いられて
いるが、紫外線ランプを内臓した紫外線透過管の長手方
向に直角状態に流体を流入させる紫外線照射処理装置に
おいては、紫外線透過管の下流側に渦流が生じて、死に
水部分が増加し、紫外線照射を受ける部分の実滞留時閻
が短くなる結果、紫外線照射量が減少して処理効率の低
下を招く欠点があった。2. Description of the Related Art Ultraviolet irradiation processing equipment for fluids is included in various industrial wastewaters when producing fluids (liquids such as ultrapure water and gases such as clean gas) used in the manufacturing process of semiconductors and pharmaceuticals. It is used for decomposing and removing organic substances and harmful substances, and for disinfecting bacteria contained in sewage treatment water, but it allows the fluid to flow in at a right angle to the longitudinal direction of the ultraviolet ray transmission tube containing the ultraviolet lamp. In the UV irradiation treatment equipment, a vortex flow is generated on the downstream side of the UV transmission tube, the amount of water dying increases, and the area of the part that receives UV irradiation is shortened during actual residence, resulting in a decrease in UV irradiation amount and treatment efficiency. There was a drawback that caused the decrease of.
【０００３】なお、前述した紫外線透過管の長手方向に
直角状に流体を流入させる紫外線照射処理装置におい
て、紫外線透過管の上流側に各種の整流機構を付設する
ものもあったが、これによっては紫外線透過管の下流側
に渦流が生じる欠点は改善できなかった。Incidentally, in the above-mentioned ultraviolet irradiation processing apparatus in which a fluid is made to flow in at right angles to the longitudinal direction of the ultraviolet ray transmitting tube, there are some which are provided with various rectifying mechanisms on the upstream side of the ultraviolet ray transmitting tube. We could not improve the defect that eddy current is generated on the downstream side of the UV transmission tube.
【０００４】[0004]
【本発明が解決しようとする課題】半導体製造、医薬品
製造等においては、これらの製品の製造の際に使用する
超純水等の液体やクリーンガス等の気体の純度が問題に
なり、これらの流体への紫外線照射量を極力高めること
が技術課題になっており、また、下水処理においては、
紫外線照射処理におけるランニングコスト（電力使用
量）の低減が技術課題になっている。In the production of semiconductors, pharmaceuticals, etc., the purity of liquids such as ultrapure water and gases such as clean gas used in the production of these products becomes a problem. It has become a technical issue to increase the amount of UV irradiation to the fluid as much as possible, and in sewage treatment,
The reduction of running cost (power consumption) in the ultraviolet irradiation treatment has become a technical issue.
【０００５】本発明は、従来の流体紫外線照射装置にお
ける前述した問題を解決するもので、処理する流体に対
する紫外線照射時間を増大させ、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処理効率を向上
させることによって、純度の高い処理流体を得ること、
紫外線照射処理におけるランニングコストを低減するこ
とに目的がある。The present invention solves the above-mentioned problems in the conventional fluid ultraviolet irradiation apparatus, and increases the ultraviolet irradiation time for a fluid to be treated to sterilize bacteria in the fluid.
To obtain a highly purified processing fluid by improving the processing efficiency such as oxidative decomposition of organic substances and decomposition of harmful substances,
The purpose is to reduce the running cost in the ultraviolet irradiation treatment.
【０００６】[0006]
【課題を解決するための手段】本発明は、紫外線ランプ
を内臓した紫外線透過管の複数本を処理槽内に配設し、
この紫外線透過管の長手方向に直角状態に流体を流入さ
せる紫外線照射処理装置において、紫外線透過管の下流
側の側面に近接させて、フィン状または平板状の整流機
構を設け、紫外線透過管を通過した流体の渦流を防止し
て紫外線照射による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処理を行うことに特徴があ
る。According to the present invention, a plurality of ultraviolet ray transmitting tubes containing an ultraviolet ray lamp are disposed in a processing tank,
In this ultraviolet ray irradiation processing device that allows a fluid to flow in at a right angle to the longitudinal direction of the ultraviolet ray transmission tube, a fin-shaped or flat plate-shaped rectifying mechanism is provided close to the side surface on the downstream side of the ultraviolet ray transmission tube and passes through the ultraviolet ray transmission tube. It is characterized in that it prevents eddy currents of the generated fluid and performs treatments such as sterilization of bacteria in the fluid by ultraviolet irradiation, oxidative decomposition of organic substances, and decomposition of harmful substances.
【０００７】以下、図面に従って説明をすると、第１図
は、本発明の整流機構を付設した流体の紫外線照射処理
装置の構造を簡略化して説明するものであって、ステン
レス製の処理槽１の内部に、紫外線ランプ２を内臓した
石英ガラス製の紫外線透過管３の複数本を間隔を置いて
支持枠体５に取付具６を介して設けるが、この紫外線透
過管３は、その長手方向に直角状に流体を流入するよう
にして、紫外線照射によっ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処理を行うように構
成する。なお、紫外線透過管３は、石英ガラス以外に、
紫外線透過率が高く、かつ流体中に溶解不純物イオンが
溶出しない材質であれば使用できる。Referring to the drawings, FIG. 1 shows a simplified structure of a fluid ultraviolet irradiation processing apparatus provided with a rectifying mechanism according to the present invention. The processing tank 1 is made of stainless steel. Inside, a plurality of quartz glass-made ultraviolet ray transmission tubes 3 with a built-in ultraviolet ray lamp 2 are provided at intervals to the support frame body 5 via fixtures 6. The ultraviolet ray transmission tubes 3 are arranged in the longitudinal direction thereof. The fluid is made to flow in at a right angle so that the bacteria in the fluid are sterilized by UV irradiation, the organic substances are oxidized and decomposed, and the harmful substances are decomposed. In addition to the quartz glass, the ultraviolet ray transmission tube 3 is
Any material can be used as long as it has a high ultraviolet transmittance and does not elute dissolved impurity ions in the fluid.
【０００８】本発明は、前述した紫外線照射処理装置に
おいて、図２に示すように、紫外線透過管３の下流側の
側面に近接させて、紫外線透過管３と同じ長さで、その
外径より厚みのない整流機構、たとえばフィン状の整流
板４を設け、これによって紫外線透過管３を通過した流
体の渦流を防止するが、フィン状の整流板４が整流機構
の容積を小さくする点で最適であるが、これ以外にも、
紫外線透過管３と同じ長さで、紫外線透過管３の外径よ
り厚みがない平板状の整流機構も使用でき、また、この
平板状の整流機構の変形として、断面が三角形状、菱形
状の整流機構も使用できる。According to the present invention, in the above-described ultraviolet irradiation processing apparatus, as shown in FIG. 2, the ultraviolet ray transmitting tube 3 is brought close to the side surface on the downstream side, has the same length as the ultraviolet ray transmitting tube 3, and has an outer diameter larger than that. A rectifying mechanism having no thickness, for example, a fin-shaped rectifying plate 4 is provided to prevent vortex flow of the fluid passing through the ultraviolet ray transmitting tube 3. However, the fin-shaped rectifying plate 4 is optimal in that it reduces the volume of the rectifying mechanism. However, besides this,
A flat plate rectification mechanism having the same length as the ultraviolet transmission tube 3 and having a thickness smaller than the outer diameter of the ultraviolet transmission tube 3 can also be used. Further, as a modification of the flat plate rectification mechanism, a cross section having a triangular shape or a rhombus shape can be used. A rectifying mechanism can also be used.
【０００９】フィン状の整流板４の材質を紫外線透過性
の弗素樹脂で作成すると、整流板４の影をなくして紫外
線照射量の増加をはかることができるので好ましいが、
弗素樹脂以外にもステンレスで作成してもよく、また、
これらの材質以外にも、紫外線照射処理をした処理水中
に溶解不純物イオンが溶出しない材質で、腐食性がな
く、紫外線耐性があり、物理的強度のある材質であれ
ば、どのようなものでもかまわない。It is preferable that the fin-shaped rectifying plate 4 is made of an ultraviolet-transparent fluororesin, because the shadow of the rectifying plate 4 can be eliminated and the amount of ultraviolet irradiation can be increased.
Other than fluororesin, it may be made of stainless steel.
In addition to these materials, any material may be used as long as it does not dissolve dissolved impurity ions in the treated water that has been subjected to UV irradiation treatment, is not corrosive, has UV resistance, and has physical strength. Absent.
【００１０】フィン状の整流板４を紫外線透過管３の下
流側の側面に近接させて取り付けるためには、紫外線透
過管３の支持枠体５に固定具（図示せず）を介して取り
付けることが望ましいが、これ以外にも、整流板４を紫
外線透過管３の下流側の側面に近接させて取り付けるこ
とができる機構であればどのようなものでもよい。In order to attach the fin-shaped rectifying plate 4 close to the downstream side surface of the ultraviolet ray transmitting tube 3, it is attached to the supporting frame 5 of the ultraviolet ray transmitting tube 3 via a fixture (not shown). However, in addition to this, any mechanism may be used as long as it can attach the rectifying plate 4 in close proximity to the downstream side surface of the ultraviolet ray transmitting tube 3.
【００１１】前述したように、フィン状の整流板４の厚
さは、紫外線透過管３の外径より薄くし、通常は２〜４
ｍｍあればよく、また、整流板４の巾は、長いほど整流
作用があるが、紫外線照射の妨げになることもあるの
で、紫外線透過管３の管径の１〜１．５倍あればよく、
さらに、フィン状の整流板４の長さは、紫外線透過管３
と同じ長さか、多少長くするとよいが、この整流板４の
厚さ、巾、長さは、紫外線透過管３の配列や本数、紫外
線照射処理槽の構造、流体の組成、流体の流速、紫外線
照射量の処理条件等に応じて適宜決定すればよい。As described above, the fin-shaped straightening plate 4 has a thickness smaller than the outer diameter of the ultraviolet ray transmitting tube 3, and is usually 2 to 4.
mm, and the longer the width of the rectifying plate 4, the more it has a rectifying action, but it may hinder the irradiation of ultraviolet rays. Therefore, the diameter of the ultraviolet transmitting tube 3 should be 1 to 1.5 times. ,
Further, the length of the fin-shaped straightening plate 4 is equal to that of the ultraviolet ray transmitting tube 3.
The length, width, and length of the rectifying plate 4 may be the same as or slightly longer than the above, but the thickness, width, and length of the rectifying plate 4 are the arrangement and the number of the ultraviolet ray transmitting tubes 3, the structure of the ultraviolet ray irradiation treatment tank, the composition of the fluid, the flow velocity of the fluid, the ultraviolet ray It may be appropriately determined according to the processing conditions of the irradiation amount.
【００１２】被処理流体を紫外線透過管の長手方向に直
角状態に流体を流入させると、被処理流体は紫外線透過
管を経て、紫外線透過管の下流側の側面に近接させて設
けたフィン状または平板状の整流機構に沿って通過する
ので、従来の被処理流体を紫外線透過管の長手方向に直
角状態に流入させる紫外線照射処理装置において問題と
なっいた紫外線透過管の下流側の流体の渦流が発生せ
ず、紫外線照射処理を行う流体に対する実質滞留時間、
すなわち紫外線照射時間が長くなり、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処理効率が
向上、または紫外線ランプ２を内臓した紫外線透過管３
の１本当たりの処理流量が増加する。When the fluid to be processed is flowed in at a right angle to the longitudinal direction of the ultraviolet ray transmitting tube, the fluid to be treated passes through the ultraviolet ray transmitting tube and is provided in a fin-like shape provided close to the side surface on the downstream side of the ultraviolet ray transmitting tube. Since it passes along the flat plate rectifying mechanism, the eddy current of the fluid on the downstream side of the ultraviolet ray transmitting tube, which was a problem in the conventional ultraviolet ray irradiation processing apparatus for inflowing the fluid to be treated at a right angle to the longitudinal direction of the ultraviolet ray transmitting tube, Real residence time for the fluid that does not generate UV irradiation treatment,
That is, the ultraviolet irradiation time becomes long, the processing efficiency such as sterilization of bacteria in the fluid, oxidative decomposition of organic substances, decomposition of harmful substances, etc. is improved, or the ultraviolet ray transmitting tube 3 having the ultraviolet ray lamp 2 incorporated therein.
The processing flow rate per one of the above increases.
【００１３】[0013]
【実施例】２５３．７ｎｍ付近の紫外線を照射する１０
００ｗの紫外線ランプ（日本フォトサイエンス製ＡＶ−
１７）を内臓した石英ガラス製の紫外線透過管（長さ１
９００ｍｍ、外径８５ｍｍ）１本をステンレス製の処理
槽の内部に配設した紫外線照射処理装置を２基用意し、
一方を本発明の紫外線照射処理装置として、この紫外線
透過管の下流側の側面に近接させて、紫外線透過性のあ
る弗素樹脂製で長さ１３００ｍｍ、巾８０ｍｍ、厚さ２
ｍｍのフィン状の整流板１枚を設け、また、他方を従来
の紫外線照射処理装置として、この紫外線透過管の下流
側の側面には何も設けなかった。[Example] Irradiation of ultraviolet rays in the vicinity of 253.7 nm 10
00w UV lamp (Japan Photo Science AV-
17) Built-in quartz glass UV transmission tube (length 1
900 mm, outer diameter 85 mm) two ultraviolet irradiation processing devices, each of which is installed inside a stainless steel processing tank,
One of them is the ultraviolet irradiation processing device of the present invention, which is made of a fluororesin having a UV transparency and has a length of 1300 mm, a width of 80 mm, and a thickness of 2 in close proximity to the side surface on the downstream side of the UV transmission tube.
One fin-shaped straightening plate of mm was provided, and the other was used as a conventional ultraviolet irradiation processing device, and nothing was provided on the downstream side surface of this ultraviolet transmission tube.
【００１４】そして、大腸菌群数１４００個／ｍｌの下
水を、前述した本発明と従来の紫外線照射処理装置の紫
外線透過管に直角状に流速０．０７ｍ／秒で流入して、
紫外線照射による細菌の殺菌処理を行ったところ、以下
のような結果となった。 本発明の処理装置 従来の処理装置 ・被処理液の平均滞留時間 ７．２秒 ５．６秒 （トレーサーテスト） ・紫外線照射量 15.73 mw.s/m2 12.24 mw.s/m2 ・処理液の菌数（３回平均値） ３個 １３個 ・殺菌率 ９９．８％ ９９．１％ ・大腸菌群９９％殺菌 に要する電力 １８．３ｗｈ／ｍ3 ２３．５ｗｈ／ｍ3 以上のことから明らかなように、本発明の処理装置によ
ると、従来の処理装置と比較して処理液の殺菌率が高
く、電力は従来装置の８０％になり、殺菌処理経費の大
幅な節減効果があった。Then, sewage containing 1400 coliforms / ml was introduced at a flow rate of 0.07 m / sec at a right angle into the ultraviolet transmission tube of the ultraviolet irradiation processing apparatus of the present invention and the conventional apparatus described above,
When bacteria were sterilized by UV irradiation, the following results were obtained. Treatment apparatus of the present invention Conventional treatment apparatus-Average residence time of treated liquid 7.2 seconds 5.6 seconds (tracer test) -UV irradiation amount 15.73 mw.s / m 2 12.24 mw.s / m 2 -treatment liquid Number of bacteria (average of 3 times) 3 13 ・ Sterilization rate 99.8% 99.1% ・ Escherichia coli 99% Electric power required for sterilization 18.3 wh / m 3 23.5 wh / m 3 or more As described above, according to the treatment apparatus of the present invention, the sterilization rate of the treatment liquid is higher than that of the conventional treatment apparatus, the power is 80% of that of the conventional apparatus, and the sterilization treatment cost is significantly reduced.
【００１５】[0015]
【発明の効果】以上述べたように、本発明によると、被
処理流体に対する実質滞留時間、すなわち紫外線照射時
間を従来装置に比較して１．２〜１．３倍に増加させる
ことが可能であり、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処理効率を向上させることに
よって、細菌、有機物、有害物質の極めて少ない、純度
の高い処理流体を得ることができるという優れた効果を
達成でき、また、この純度の高い処理流体は、たとえ
ば、高品質の半導体や医薬品等の製品を製造する際に使
用する超純水等の液体やクリーンガス等の気体として最
適である。As described above, according to the present invention, it is possible to increase the substantial residence time of the fluid to be treated, that is, the ultraviolet irradiation time by 1.2 to 1.3 times as compared with the conventional apparatus. Yes, by improving the treatment efficiency such as sterilization of bacteria in the fluid, oxidative decomposition of organic substances, decomposition of harmful substances, etc., it is possible to obtain a highly purified processed fluid containing extremely few bacteria, organic substances and harmful substances. The processing fluid of high purity can be achieved, and it is optimal as a liquid such as ultrapure water or a gas such as clean gas used when manufacturing products such as high quality semiconductors and pharmaceuticals. .
【００１６】また、本発明は、紫外線照射量を従来装置
と同じにすれば、その分だけ流体の処理流量も増加する
ことも可能であり、所定純度の処理流体を得るための紫
外線照射処理の消費電力を低減できるので、流体の紫外
線照射処理のランニングコストを安価にすることができ
る。Further, according to the present invention, if the amount of UV irradiation is the same as that of the conventional apparatus, it is possible to increase the processing flow rate of the fluid by that amount. Since the power consumption can be reduced, the running cost of ultraviolet irradiation treatment of the fluid can be reduced.
【図１】本発明の紫外線照射処理装置の内部に配設した
紫外線ランプを内臓した紫外線透過管を設けた状態を示
す説明図である。FIG. 1 is an explanatory view showing a state in which an ultraviolet ray transmitting tube incorporating an ultraviolet ray lamp disposed inside an ultraviolet ray irradiation processing apparatus of the present invention is provided.
【図２】本発明の紫外線照射処理装置の内部に配設した
紫外線ランプを内臓した紫外線透過管の下流側にフィン
状の整流板を設けた状態を示す断面説明図である。FIG. 2 is a cross-sectional explanatory view showing a state in which a fin-shaped rectifying plate is provided on the downstream side of an ultraviolet ray transmitting tube containing an ultraviolet ray lamp arranged inside the ultraviolet ray irradiation processing apparatus of the present invention.
１ 処理装置 ２ 紫外線ランプ ３ 紫外線透過管 ４ フィン状の整流板 ５ 紫外線透過管の支持枠体 DESCRIPTION OF SYMBOLS 1 Processing apparatus 2 Ultraviolet lamp 3 Ultraviolet transmission tube 4 Fin-shaped straightening plate 5 Support frame for ultraviolet transmission tube
Claims (1)
複数本を間隔を置いて処理槽内に配設し、この紫外線透
過管の長手方向に直角状に流体を流入させて、紫外線照
射によって流体中の細菌の殺菌、有機物の酸化分解、有
害物質の分解等の処理を行う紫外線照射処理装置におい
て、紫外線透過管の下流側の側面に近接させて、紫外線
透過管と同じ長さを有するとともに紫外線透過管の外径
より厚みのないフィン状または平板状の整流機構を設
け、紫外線透過管を通過した流体の渦流を防止する整流
機構付の紫外線照射処理装置。1. A plurality of ultraviolet ray transmitting tubes containing an ultraviolet ray lamp are arranged at intervals in a processing tank, and a fluid is flowed in at right angles to the longitudinal direction of the ultraviolet ray transmitting tubes, and the fluid is irradiated by ultraviolet rays. In an ultraviolet irradiation processing device that performs processing such as sterilization of bacteria in bacteria, oxidative decomposition of organic substances, decomposition of harmful substances, etc., it has the same length as the ultraviolet transmission tube and is close to the side surface on the downstream side of the ultraviolet transmission tube. An ultraviolet irradiation processing device with a rectifying mechanism that prevents the eddy current of the fluid that has passed through the ultraviolet ray transmission tube by providing a fin-shaped or flat plate rectification mechanism that is thinner than the outer diameter of the transmission tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11715796A JPH09276859A (en) | 1996-04-16 | 1996-04-16 | Ultraviolet irradiation treatment apparatus fitted with stream-straightening mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11715796A JPH09276859A (en) | 1996-04-16 | 1996-04-16 | Ultraviolet irradiation treatment apparatus fitted with stream-straightening mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09276859A true JPH09276859A (en) | 1997-10-28 |
Family
ID=14704874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11715796A Pending JPH09276859A (en) | 1996-04-16 | 1996-04-16 | Ultraviolet irradiation treatment apparatus fitted with stream-straightening mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09276859A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002072480A1 (en) * | 2001-03-12 | 2002-09-19 | Photoscience Japan Corporation | Uv-irradiation water purification apparatus with turbulent flow |
| WO2012045378A1 (en) * | 2010-10-08 | 2012-04-12 | Itt Manufacturing Enterprises, Inc. | Flow straightener for closed pipelines |
| US8459861B2 (en) | 2008-11-26 | 2013-06-11 | Calgon Carbon Corporation | Method and apparatus for use of mixing elements in wastewater / recycle water UV disinfection system |
| JP2014200731A (en) * | 2013-04-04 | 2014-10-27 | 住友電気工業株式会社 | Ultraviolet lamp for water treatment and ballast water treatment apparatus |
-
1996
- 1996-04-16 JP JP11715796A patent/JPH09276859A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002072480A1 (en) * | 2001-03-12 | 2002-09-19 | Photoscience Japan Corporation | Uv-irradiation water purification apparatus with turbulent flow |
| US8459861B2 (en) | 2008-11-26 | 2013-06-11 | Calgon Carbon Corporation | Method and apparatus for use of mixing elements in wastewater / recycle water UV disinfection system |
| WO2012045378A1 (en) * | 2010-10-08 | 2012-04-12 | Itt Manufacturing Enterprises, Inc. | Flow straightener for closed pipelines |
| US8907302B2 (en) | 2010-10-08 | 2014-12-09 | Xylem Ip Holdings Llc | Flow rectifier for closed pipelines |
| JP2014200731A (en) * | 2013-04-04 | 2014-10-27 | 住友電気工業株式会社 | Ultraviolet lamp for water treatment and ballast water treatment apparatus |
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