JPH0657356B2 - Photochemical reactor - Google Patents
Photochemical reactorInfo
- Publication number
- JPH0657356B2 JPH0657356B2 JP63146119A JP14611988A JPH0657356B2 JP H0657356 B2 JPH0657356 B2 JP H0657356B2 JP 63146119 A JP63146119 A JP 63146119A JP 14611988 A JP14611988 A JP 14611988A JP H0657356 B2 JPH0657356 B2 JP H0657356B2
- Authority
- JP
- Japan
- Prior art keywords
- reaction
- light source
- reaction container
- container body
- central axis
- 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.)
- Expired - Fee Related
Links
- 238000006243 chemical reaction Methods 0.000 claims description 96
- 239000012295 chemical reaction liquid Substances 0.000 claims description 50
- 238000006552 photochemical reaction Methods 0.000 claims description 14
- 238000007599 discharging Methods 0.000 claims description 6
- 230000001678 irradiating effect Effects 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 239000000243 solution Substances 0.000 description 22
- 239000007788 liquid Substances 0.000 description 19
- 239000003814 drug Substances 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 229940079593 drug Drugs 0.000 description 11
- 230000000694 effects Effects 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 230000001954 sterilising effect Effects 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000002834 transmittance Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000000084 colloidal system Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 235000021056 liquid food Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000007539 photo-oxidation reaction Methods 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Physical Water Treatments (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、反応容器内を流通する反応液に光を照射して
反応を促進させる光化学反応装置にかかり、特に、攪拌
棒等の動的混合手段を用いることなく、均一な光照射と
反応液の混合との２つの作用を同時に効果的に得られる
ようにしたものであって、用水の光酸化処理やコロイド
成分等の固形物を含有する液体の薬剤・紫外線併用殺菌
処理等にも利用できるものに関する。TECHNICAL FIELD The present invention relates to a photochemical reaction device that accelerates the reaction by irradiating a reaction liquid flowing in a reaction container with light, and particularly to a dynamic reaction device such as a stirring bar. It is intended to obtain the two effects of uniform light irradiation and mixing of a reaction solution at the same time without using a mixing means, and to contain a solid substance such as photooxidation treatment of water and colloid components. The present invention also relates to a material that can be used for sterilization treatment of liquid medicine and ultraviolet rays in combination.
［従来の技術］ この種の光化学反応装置としては、従来、例えば、円筒
管等に産業用水、液体食品あるいは医薬品等の被処理液
を流通させて、これに紫外線を照射することにより、該
被処理液に殺菌処理を施すいわゆる紫外線殺菌機が知ら
れている。[Prior Art] This type of photochemical reaction device has hitherto been used, for example, by circulating a liquid to be treated such as industrial water, liquid food or pharmaceuticals through a cylindrical tube or the like, and irradiating the liquid with ultraviolet rays. A so-called ultraviolet sterilizer for sterilizing a treatment liquid is known.
ところで、一般に、光化学反応装置は、均一な反応をお
こなわせるため、流通する反応液全体に均一に光を照射
する必要がある。ところが、反応液もしくは照射する光
によっては、光の反応液に対する透過率が著しく悪く、
単に、光源の近くを反応液が流通するようにしただけで
は、光源の極く近傍を通過する一部の反応液に光が照射
されるだけで、均一な光照射ができない場合がある。By the way, in general, a photochemical reaction device needs to uniformly irradiate the whole reaction liquid flowing through it with light in order to carry out a uniform reaction. However, depending on the reaction solution or the irradiation light, the transmittance of light to the reaction solution is extremely poor,
If the reaction solution is simply allowed to flow near the light source, a part of the reaction solution passing near the light source may be irradiated with light, and uniform light irradiation may not be possible.
特に、前記紫外線殺菌機のように、紫外線という、ほと
んどの物質に対して透過率が低い光を用いる場合はこの
傾向が著しい。This tendency is particularly remarkable when ultraviolet light, which is low in transmittance for most substances, is used as in the ultraviolet sterilizer.
このため、前記紫外線殺菌機にあっては、紫外線に対し
て比較的透過率の高い液体の殺菌用としては実用化され
ているものの、牛乳等のコロイド液体，下水の二次処理
水その他の固形物含有液体のような紫外線に対する透過
率が著しく低い液体の殺菌用として適用することは極め
て困難であった。Therefore, in the ultraviolet sterilizer, although it has been put to practical use for sterilizing liquids having a relatively high transmittance to ultraviolet rays, colloid liquids such as milk, secondary treated water of sewage and other solids. It was extremely difficult to apply it for sterilization of liquids having extremely low transmittance for ultraviolet rays such as substance-containing liquids.
近年、この紫外線殺菌機を固形物含有液体の殺菌用とし
て実用化するために、処理液の液層を薄くし、同時に紫
外線照射面積を広くして照射効率を高めたり、あるい
は、処理液中に空気等の気体を吹き込んで攪拌し、処理
液全体が均一に紫外線にさらされるようにする等の試み
がなされている。In recent years, in order to put this ultraviolet sterilizer into practical use for sterilizing solid-containing liquids, thin the liquid layer of the treatment liquid, and at the same time increase the ultraviolet irradiation area to increase the irradiation efficiency, or in the treatment liquid. Attempts have been made to blow a gas such as air and stir it so that the entire treatment liquid is uniformly exposed to ultraviolet rays.
また、前記紫外線殺菌機以外の紫外線照射方式の光化学
反応装置にあっても、反応容器内面を紫外線反射鏡にす
るとともに、いわゆる「雨どい」状に形成して、この
「雨どい」状の容器中を反応液が乱流に近い状態で流通
するように導入して、前記反射鏡による紫外線の照射効
率の向上効果と、「雨どい」状の容器中を乱流となって
流通することによる攪拌効果とによって均一な光照射を
確保しようとした試み等がなされている。Even in a photochemical reaction device of an ultraviolet irradiation system other than the ultraviolet sterilizer, the inner surface of the reaction container is used as an ultraviolet reflecting mirror and is formed into a so-called "rain gutter" shape, and this "rain gutter" shape container is used. By introducing the reaction liquid so that the reaction liquid flows in a state close to turbulent flow, the effect of improving the irradiation efficiency of ultraviolet rays by the reflecting mirror and the turbulent flow in the "rain gutter" -shaped container Attempts have been made to ensure uniform light irradiation by the stirring effect.
［発明が解決しようとする課題］ しかしながら、上述の各従来例は、以下のような欠点が
あった。[Problems to be Solved by the Invention] However, each of the conventional examples described above has the following drawbacks.
すなわち、前記紫外線殺菌機のように、液層を薄くし照
射面積を広くしようとすると、流通する反応液の流通量
が制限されて処理量に限界が生ずるとともに、薄くした
液層を透過した紫外線が有効に吸収されないまま無駄に
されるおそれが高い。That is, like the ultraviolet sterilizer, when trying to thin the liquid layer and widen the irradiation area, the flow rate of the reaction liquid flowing is limited and the processing amount is limited, and the ultraviolet rays transmitted through the thin liquid layer Is highly likely to be wasted without being effectively absorbed.
また、気体吹き込みによる攪拌による方法も、局部的に
液体を均等に混合するという意味での攪拌効果は得られ
るものの、液体の各部分を均等に光源にさらすという効
果は必ずしも十分に得ることができず、これがため、必
ずしも十分均一な反応が得られないとともに、装置の構
成も複雑になるという欠点があった。Further, the method of stirring by injecting gas can also obtain the stirring effect in the sense of locally uniformly mixing the liquid, but the effect of uniformly exposing each part of the liquid to the light source can not always be sufficiently obtained. As a result, there is a drawback that a sufficiently uniform reaction cannot always be obtained and the structure of the apparatus becomes complicated.
さらに、前記「雨どい」状の容器とした場合には、も
し、反応容器内を反応液が完全な乱流となって流通する
ものであれば、理論的には、均一な光照射が得られるは
ずであるが、前記従来試みられている各方法は、流体力
学において大略「乱流」と見なせるという条件（例え
ば、管径と流速とからレイノルズ数を計算して約4000以
上であれば乱流と見なしていた）を機械的に適用して反
応容器の設計がなされていた。すなわち、例えば、反応
容器に反応液を導入する反応液導入管及び反応液を排出
する反応液排出管の前記反応容器に対する接続の仕方
は、それぞれ該反応容器の両端部において、前記導入管
及び排出管の中心線がともに前記反応容器の管中心線に
直交するように接続するか、あるいは、前記導入管及び
排出管の中心線と反応容器の管中心線が平行になるよう
に接続していた。Furthermore, in the case of the "rain gutter" -shaped container, if the reaction liquid flows as a complete turbulent flow in the reaction container, theoretically, uniform light irradiation can be obtained. However, each of the above-mentioned conventional methods has a condition that it can be regarded as a “turbulent flow” in fluid dynamics (for example, if the Reynolds number is calculated from the pipe diameter and the flow velocity to be about 4000 or more, the turbulence is Which was regarded as a flow) was mechanically applied to design the reaction vessel. That is, for example, the method of connecting the reaction liquid introducing pipe for introducing the reaction liquid to the reaction container and the reaction liquid discharging pipe for discharging the reaction liquid to the reaction container is as follows. Either the center lines of the tubes were connected so as to be orthogonal to the center lines of the reaction vessels, or the center lines of the introduction and discharge pipes and the center lines of the reaction vessels were connected in parallel. .
しかし、このようにして得た装置は、設計時における計
算で予定された所期の性能が得られず、結局、設計上で
は必要のないはずの大型の光源を用いて光量を確保する
等の手当てをしないと均一な反応が得られないという欠
点があった。発明者の考察によれば、これは、前記従来
の反応容器の設計の際には、単にレイノルズ数をもとに
して、管径と流速とを設定し、これにより前記反応容器
内に導入された反応液が完全な「乱流」になっているも
のと見なしている点に原因があると思われる。すなわ
ち、レイノルズ数からすれば「乱流」と見なすことがで
きても、「反応液の各部に均一に光が照射される」とい
う観点、つまり、反応液の各部の軌跡が光源となす距離
の平均値が統計的に同じになるという観点では、単にレ
イノルズ数のみでなく、反応容器内部の流体の線流速ベ
クトル等も考慮にいれないかぎり、「乱流」と見なすこ
とはできず、これがため、このような配慮なしに設計し
た従来の反応容器では、均一な光照射が得られなかった
ものと思われる。However, the device thus obtained does not provide the expected performance in the calculation at the time of design, and in the end, a large light source, which should not be necessary in the design, is used to secure the amount of light. There was a drawback that a uniform reaction could not be obtained without care. According to the inventor's consideration, when designing the conventional reaction vessel, this is set by simply setting the pipe diameter and the flow rate based on the Reynolds number, and thereby introducing into the reaction vessel. It is believed that the cause is that the reaction solution is regarded as being completely "turbulent". In other words, even if it can be regarded as “turbulent flow” from the Reynolds number, the point of “irradiating light uniformly to each part of the reaction solution”, that is, the distance between the trajectory of each part of the reaction solution and the light source From the viewpoint that the average values are statistically the same, it cannot be considered as "turbulent flow" unless not only the Reynolds number but also the linear velocity vector of the fluid inside the reaction vessel is taken into consideration. It seems that the conventional reaction vessel designed without such consideration did not provide uniform light irradiation.
均一な光照射が得られないと、例えば、用水の処理の場
合のように、用水に薬剤を混入して反応させるような場
合には、不均一な光照射による反応ムラによって反応容
器内で積極的に薬剤の濃度ムラを発生させることにな
り、前記反応ムラとの相乗作用によってさらに反応の不
均一性を助長するという悪循環をもたらす。If uniform light irradiation cannot be obtained, for example, when treating chemicals by mixing chemicals in water, as in the case of treating water, the reaction unevenness due to uneven light irradiation causes positive reaction in the reaction vessel. Therefore, the concentration unevenness of the drug is generated, and a synergistic effect with the reaction unevenness further promotes the non-uniformity of the reaction, which brings about a vicious circle.
本発明の目的は、上述の欠点を除去した光化学反応装置
を提供することにある。An object of the present invention is to provide a photochemical reaction device which eliminates the above-mentioned drawbacks.
［課題を解決するための手段］ 上述の課題を解決するために本発明にかかる光化学反応
装置は、 略円筒状の反応容器本体と、 この反応容器本体内に該反応容器本体の長手方向に沿う
ようにして配置された棒状光源とを備え、前記反応容器
本体内に反応液を導入して該反応容器本体内を流通させ
て前記光源から放射される光を照射することにより反応
を促進させる光化学反応装置であって、 前記反応容器本体には、該反応容器内に反応液を導入す
るための反応液導入管及びこの導入された反応液を排出
するための排出管とが接続され、 前記反応液導入管は、該反応液導入管の中心軸線が、前
記反応容器本体の円筒の中心軸線と該反応容器本体の内
周面との間の部分を通りかつ前記反応容器本体の円筒の
中心軸線と平行な直線にほぼ直交するように前記反応容
器本体に接続されたものであり、 前記棒状光源は、前記反応容器本体内に該反応容器本体
の中心軸線から外れた位置に該中心軸線とほぼ平行にな
るように配置されたものであり、 前記反応容器本体の内径と、前記反応液導入管の内径
と、前記光源の外径と、前記反応液の流速との関係が、
前記反応液導入管を通じて反応容器本体内に反応液を導
入した場合に、該反応液が反応容器本体の中心軸線をそ
の中心軸線とする層流状のラセン流となり、かつ、前記
光源が前記層流状のラセン流となって進む反応液の流れ
を切ると同時にこの層流状のラセン流の層流状態を大略
崩すことなく該光源の後方にカルマン渦を形成させるよ
うな関係に設定されたものであることを特徴とした構成
とした。[Means for Solving the Problems] In order to solve the above-mentioned problems, a photochemical reaction device according to the present invention comprises a reaction container body having a substantially cylindrical shape, and a reaction container body extending in the longitudinal direction of the reaction container body. And a rod-shaped light source arranged as described above, and a photochemistry for accelerating the reaction by introducing a reaction solution into the reaction container body, circulating the reaction solution in the reaction container body, and irradiating light emitted from the light source. A reaction apparatus, wherein the reaction container body is connected to a reaction liquid introducing pipe for introducing a reaction liquid into the reaction container and a discharge pipe for discharging the introduced reaction liquid, The liquid introduction pipe has a central axis of the reaction liquid introduction pipe that passes through a portion between the central axis of the cylinder of the reaction container body and the inner peripheral surface of the reaction container body, and the central axis of the cylinder of the reaction container body. Almost orthogonal to a straight line parallel to As described above, the rod-shaped light source is arranged in the reaction container body so as to be substantially parallel to the center axis line at a position deviated from the center axis line of the reaction container body. The relationship between the inner diameter of the reaction container body, the inner diameter of the reaction liquid introduction tube, the outer diameter of the light source, and the flow velocity of the reaction liquid is
When the reaction liquid is introduced into the reaction container main body through the reaction liquid introduction pipe, the reaction liquid becomes a laminar flow spiral flow having the central axis of the reaction container main body as its central axis, and the light source is the layer. It was set so that a Karman vortex was formed behind the light source without breaking the laminar flow state of the laminar spiral flow at the same time as cutting off the flow of the reaction liquid that progressed as a stream-like spiral flow. The configuration is characterized by being a thing.
［作用］ 上述の構成において、前記反応容器本体内に導入された
反応液は、前記反応容器本体内をラセン流となって進
み、前記排出管から排出される。[Operation] In the above-described configuration, the reaction liquid introduced into the reaction container body proceeds in the reaction container body as a spiral flow, and is discharged from the discharge pipe.
その際、前記反応液は前記光源によって繰り返しその流
れが切られる。これにより、この光源の周囲には次式で
示されるような規則的なカルマン渦が生ずる。At that time, the reaction liquid is repeatedly cut off by the light source. As a result, a regular Karman vortex as shown by the following equation is generated around this light source.
ｆ＝Ｓｔ・ｖ／ｄ ただし、 ｆ；周波数 Ｓｔ；ストローハル数（約0.2） ｖ；流速 ｄ；光源の径 とする。f = St · v / d, where f: frequency St: Strouhal number (about 0.2) v: flow velocity d: diameter of light source.
このように、前記反応液はその流れが繰り返し光源に切
られ、その度にカルマン渦を形成する。すなわち、導入
された反応液の一部は、まず、その流れを切られるとき
に光源の極近傍を通るから、その際、十分な光照射をう
ける。次に、流れが切られると同時に、カルマン渦が形
成されるから、光源の極近傍を通過した反応液の一部と
比較的離れた部位を通過した反応液の他の一部とが均等
に混合される。均等に混合された反応液は再び前記光源
によってその流れが切られ、同様にして光照射と混合が
なされる。このような作用が前記反応液のラセン流に応
じて次々と繰り返し行われる。In this way, the flow of the reaction solution is repeatedly cut by the light source, and a Karman vortex is formed each time. That is, since a part of the introduced reaction liquid first passes through the immediate vicinity of the light source when the flow is cut off, it is sufficiently irradiated with light at that time. Next, as the flow is cut off, a Karman vortex is formed at the same time, so that a part of the reaction liquid that has passed through the vicinity of the light source and another part of the reaction liquid that has passed through a relatively distant portion are evenly distributed. Mixed. The flow of the uniformly mixed reaction liquid is cut off by the light source again, and similarly, light irradiation and mixing are performed. Such an action is repeated one after another according to the spiral flow of the reaction solution.
この場合、カルマン渦による混合はほぼ理想的な混合と
みることができるから、その前に光源の極近傍を通過し
て比較的強い光照射を受けた部分とそうでない部分とは
均一に混合される。したがって、次に流れが切られると
きに光源の極近傍を通過するのは、この均一に混合され
た反応液の一部であり、光源の極近傍を通過した部分が
そのまま再度近傍を通過したり、あるいは、光源から比
較的離れた部位を通過した反応液の一部が再び比較的離
れた部位を通過する等のことがない。すなわち、光照射
にムラが生ずるようなことなく、反応が均一に促進され
る。In this case, the mixing due to Karman vortex can be regarded as almost ideal mixing, and therefore, the part that has passed relatively close to the light source and is irradiated with relatively strong light before that is uniformly mixed. It Therefore, when the flow is cut off next time, it is a part of this uniformly mixed reaction liquid that passes through the immediate vicinity of the light source, and the portion that has passed through the immediate vicinity of the light source passes through the immediate vicinity again. Alternatively, a part of the reaction liquid that has passed through the portion relatively far from the light source does not pass through the portion relatively far again. That is, the reaction is uniformly promoted without causing unevenness in light irradiation.
しかも、例えば、上述の用水処理の場合のように、用水
に薬剤を混合して反応させるようなときは、用水と薬剤
との均一な混合と均一な光照射との２つ作用を同時に得
られる。これにともなって、薬剤濃度の均一化によって
化学反応の安定化効果が得られ、また、光量子吸収の均
一化によって反応速度の増幅度が反応液の各部分で均一
となって光量効果のよい結果が得られる。Moreover, for example, when the chemicals are mixed with the water for reaction as in the case of the above-mentioned water treatment, two effects of uniform mixing of the water and the chemicals and uniform light irradiation can be obtained at the same time. . Along with this, the stabilization effect of the chemical reaction is obtained by making the drug concentration uniform, and the amplification of the reaction rate is made uniform in each part of the reaction solution by making the photon absorption uniform. Is obtained.
［実施例］ 第１図は本発明の一実施例にかかる光化学反応装置の一
部破断正面図、第２図は第１図における光化学反応装置
のＡ矢視図、第３図は第１図におけるIII−III線断面図
である。[Embodiment] FIG. 1 is a partially cutaway front view of a photochemical reaction device according to an embodiment of the present invention, FIG. 2 is a view of the photochemical reaction device in FIG. 1 taken along arrow A, and FIG. 3 is FIG. 3 is a sectional view taken along line III-III in FIG.
図において、符号１は反応容器本体である。In the figure, reference numeral 1 is a reaction container body.
この反応容器本体１は、略円筒状をなしたもので、その
内部に棒状光源としての紫外線ランプ２，３，４が設け
られている。これら紫外線ランプ２，３，４はそれぞれ
円筒状をなした透明石英製の保護管２ａ，３ａ，４ａ内
に収納され、前記反応容器本体１の中心軸線Ｃ１のまわ
りにほぼ等間隔でかつ該中心軸線Ｃ１にその長手方向が
ほぼ沿うように配置されている。また、前記反応容器本
体１の両端部にはフランジ部１ａ，１ｂがそれぞれ形成
され、これらフランジ部１ａ，１ｂには合フランジ１
ｃ，１ｄがそれぞれパッキン等のシール部材を介して固
定されている。そして前記紫外線ランプ２，３，４及び
保護管２ａ，３ａ，４ａの両端部は、前記合フランジ１
ｃ，１ｄに設けられた支持孔に挿通され、パッキンもし
くはブッシュ等のシール部材を介して支持されている。
なお、前記各紫外線ランプ２，３，４には電源５からケ
ーブル５ａを介して電力が供給される。The reaction container body 1 has a substantially cylindrical shape, and ultraviolet lamps 2, 3 and 4 as rod-shaped light sources are provided therein. These UV lamps 2, 3 and 4 are housed in cylindrical transparent quartz protection tubes 2a, 3a and 4a, respectively, which are arranged at substantially equal intervals around the central axis C1 of the reaction vessel body 1 and at the center thereof. It is arranged so that its longitudinal direction is substantially along the axis C1. Further, flange portions 1a and 1b are formed at both ends of the reaction vessel body 1, and the flange portions 1a and 1b are formed with a mating flange 1
c and 1d are fixed via a sealing member such as packing. Both ends of the ultraviolet lamps 2, 3, 4 and the protection tubes 2a, 3a, 4a are attached to the joint flange 1
It is inserted through the support holes provided in c and 1d, and is supported via a seal member such as packing or bush.
The ultraviolet lamps 2, 3, 4 are supplied with electric power from a power source 5 via a cable 5a.
また、前記反応容器本体１の両端部近傍の外周部には、
それぞれ該反応容器本体１に反応液を導入する反応液導
入管６及び導入した反応液を排出する反応液排出管７が
接続されている。Further, in the outer peripheral portion near both ends of the reaction container body 1,
A reaction liquid introducing pipe 6 for introducing the reaction liquid and a reaction liquid discharging pipe 7 for discharging the introduced reaction liquid are connected to the reaction container body 1, respectively.
前記反応液導入管６は、該反応液導入管６の中心軸線Ｃ
６が前記反応容器本体１の中心軸線Ｃ１と該反応容器本
体１の内周面との間の部分を通るように該反応容器本体
１に溶接等により接続されている。The reaction liquid introducing pipe 6 has a central axis C of the reaction liquid introducing pipe 6.
6 is connected to the reaction container body 1 by welding or the like so as to pass through a portion between the central axis C1 of the reaction container body 1 and the inner peripheral surface of the reaction container body 1.
また、前記反応液排出管７も、前記反応液導入管６とほ
ぼ同様の方法で前記反応容器本体１に接続されている
が、第２図に示されるように、第１図における矢印Ａで
示される方向から見た場合に、この反応液排出管７は、
前記反応液導入管６と交差してみえるようになってい
る。The reaction solution discharge pipe 7 is also connected to the reaction container body 1 in a manner substantially similar to the reaction solution introduction pipe 6, but as shown in FIG. When viewed from the direction shown, this reaction solution discharge pipe 7 is
It can be seen so as to intersect with the reaction solution introducing pipe 6.
さらに、前記反応液導入管６には、該反応液導入管６に
薬剤を注入するための薬剤注入管８の一端が接続されて
おり、この薬剤注入管８の他端は薬剤供給装置９に接続
されている。Further, one end of a drug injection pipe 8 for injecting a drug into the reaction liquid introduction pipe 6 is connected to the reaction liquid introduction pipe 6, and the other end of the drug injection pipe 8 is connected to the drug supply device 9. It is connected.
上述の構成において、図中矢印ｐで示されるように、前
記反応液導入管６から用水等の反応液を導入し、矢印ｒ
で示されるように前記薬剤注入管８を介して薬剤供給装
置９から薬剤を注入すると、これら用水と薬剤とは前記
反応容器本体１内で反応が行われて矢印ｑで示されるよ
うに反応液排出管７から排出される。In the above-mentioned configuration, as shown by an arrow p in the figure, a reaction liquid such as water is introduced from the reaction liquid introduction pipe 6, and an arrow r
When a drug is injected from the drug supply device 9 through the drug injecting tube 8 as shown in FIG. 3, the water and the drug react with each other in the reaction container body 1 and the reaction liquid is supplied as indicated by an arrow q. It is discharged from the discharge pipe 7.
この場合、第３図に示されるように、前記反応液導入管
６から導入された用水と薬剤との混合液は、矢印ｓで示
されるように、いわゆるサイクロン流とよばれるラセン
流となって進む。その際、前記紫外線ランプ２，３，４
を収容した保護管２ａ，３ａ，４ａによってこのラセン
流が次々と切られる。これにより、これら保護管２ａ，
３ａ，４ａ周囲には次々に規則的なカルマン渦ｋが生ず
る。いま、容器本体１の内径を０．５ｍ、紫外線ランプ
２，３，４の外径ｄを０．０４ｍ、反応液の流速ｖを
０．０８５ｍ／ｓｅｃ、ストローハル定数Ｓｔを０．２
とすると、カルマン渦ｋの周波数ｆは約０．４２５Ｈｚ
となる。これにより、前記［作用］の欄で詳述したよう
に、極めて均一な混合と均一な光照射とが同時に行われ
る。In this case, as shown in FIG. 3, the mixed liquid of the water and the chemical introduced from the reaction liquid introducing pipe 6 becomes a spiral flow called a cyclone flow as indicated by an arrow s. move on. At that time, the ultraviolet lamps 2, 3, 4
The spiral flow is cut off one after another by the protective tubes 2a, 3a, 4a containing therein. As a result, these protection tubes 2a,
Regular Karman vortices k are successively generated around 3a and 4a. Now, the inner diameter of the container body 1 is 0.5 m, the outer diameter d of the ultraviolet lamps 2, 3 and 4 is 0.04 m, the flow rate v of the reaction solution is 0.085 m / sec, and the Strouhal constant St is 0.2.
Then, the frequency f of the Karman vortex k is about 0.425 Hz
Becomes As a result, extremely uniform mixing and uniform light irradiation are simultaneously carried out, as described in detail in the section [Action].
本発明者等は、前記実施例にかかる光化学反応装置を用
いて、実際にプール水の浄化処理を行う実験を行ってい
るので以下にその結果の一部を掲げる。なお、この場合
の消費電力は従来の1/2以下であった。The present inventors have conducted an experiment of actually purifying the pool water using the photochemical reaction device according to the above-mentioned embodiment, and therefore some of the results are listed below. The power consumption in this case was less than half that of the conventional one.
実験条件 方法……プール水（反応液）を循環浄化させる流路途中
に本実施例の光化学反応装置を設置して薬剤を注入しつ
つ光照射と混合を行った。Experimental conditions Method: The photochemical reaction device of this example was installed in the middle of a flow path for circulating and purifying pool water (reaction liquid), and light irradiation and mixing were performed while injecting a drug.
注入薬剤……次亜塩素酸ナトリウム（有効塩素12％含
有） 定量ポンプにて注入 使用光源……600Ｗ低圧水銀ランプ プール水（反応液）の循環量……約60m3／時間 積算光照射時間……720時間（循環照射） 積算循環処理量……1000m3 汚染有機物量の表示方法……過マンガン酸カリウム消費
量に換算 結果 ［発明の効果］ 以上、詳述したように、本発明は、反応溶液導入管によ
り溶液を導入することによって容器内に層流状のラセン
流を形成するようにし、この形成された層流状のラセン
流を崩さずに該ラセン流を光源が次々と切り、その都度
光源の後方にカルマン渦が生ずるように光源を形成した
ものであり、これにより、邪魔板等を設けることなく、
極めて単純な構成により、均一な光照射と反応液の混合
との２つの作用を同時に効果的に得られるようにしたも
のである。Injecting agent: Sodium hypochlorite (containing 12% of available chlorine) Injection with a metering pump Light source: 600W Low-pressure mercury lamp Pool water (reaction solution) circulation rate: Approximately 60m 3 / hour Accumulated light irradiation time ... … 720 hours (circulation irradiation) Cumulative amount of circulating treatment… 1000m 3 Display method of amount of polluted organic matter …… Converted to potassium permanganate consumption [Advantages of the Invention] As described in detail above, the present invention is configured to form a laminar flow helical flow in a container by introducing a solution through a reaction solution introducing pipe. The light source cuts the spiral flow one after another without breaking the spiral flow, and the light source is formed so that a Karman vortex is generated behind the light source each time, whereby a baffle plate or the like is not provided.
With a very simple structure, the two effects of uniform light irradiation and mixing of the reaction solution can be effectively obtained at the same time.
第１図は本発明の一実施例にかかる光化学反応装置の一
部破断正面図、第２図は第１図における光化学反応装置
のＡ矢視図、第３図は第１図におけるIII−III線断面図
である。 １……反応容器本体、２，３，４……光源たる紫外線ラ
ンプ、６……反応液導入管、７……反応液排出管。FIG. 1 is a partially cutaway front view of a photochemical reaction device according to an embodiment of the present invention, FIG. 2 is a view of the photochemical reaction device in FIG. 1 as seen in the direction of arrow A, and FIG. 3 is III-III in FIG. It is a line sectional view. 1 ... Reactor main body, 2, 3, 4 ... Ultraviolet lamp as light source, 6 ... Reactant introducing pipe, 7 ... Reactant ejecting pipe.
Claims (1)
ようにして配置された棒状光源とを備え、前記反応容器
本体内に反応液を導入して該反応容器本体内を流通させ
て前記光源から放射される光を照射することにより反応
を促進させる光化学反応装置であって、 前記反応容器本体には、該反応容器内に反応液を導入す
るための反応液導入管及びこの導入された反応液を排出
するための排出管とが接続され、 前記反応液導入管は、該反応液導入管の中心軸線が、前
記反応容器本体の円筒の中心軸線と該反応容器本体の内
周面との間の部分を通りかつ前記反応容器本体の円筒の
中心軸線と平行な直線にほぼ直交するように前記反応容
器本体に接続されたものであり、 前記棒状光源は、前記反応容器本体内に該反応容器本体
の中心軸線から外れた位置に該中心軸線とほぼ平行にな
るように配置されたものであり、 前記反応容器本体の内径と、前記反応液導入管の内径
と、前記光源の外径と、前記反応液の流速との関係が、
前記反応液導入管を通じて反応容器本体内に反応液を導
入した場合に、該反応液が反応容器本体の中心軸線をそ
の中心軸線とする層流状のラセン流となり、かつ、前記
光源が前記層流状のラセン流となって進む反応液の流れ
を切ると同時にこの層流状のラセン流の層流状態を大略
崩すことなく該光源の後方にカルマン渦を形成させるよ
うな関係に設定されたものであることを特徴とした光化
学反応装置。1. A reaction container body having a substantially cylindrical shape, and a rod-shaped light source arranged in the reaction container body along the longitudinal direction of the reaction container body. A photochemical reaction device which promotes the reaction by introducing and circulating the light in the reaction container body and irradiating light emitted from the light source, wherein the reaction container body contains a reaction liquid in the reaction container. A reaction liquid introducing pipe for introducing and a discharge pipe for discharging the introduced reaction liquid are connected, and the reaction liquid introducing pipe has a central axis of the reaction liquid introducing pipe, and is a cylinder of the reaction container body. Connected to the reaction vessel body so as to pass through a portion between the central axis of the reaction vessel body and the inner peripheral surface of the reaction vessel body and substantially orthogonal to a straight line parallel to the central axis of the cylinder of the reaction vessel body. , The rod-shaped light source is the reaction container book It is arranged in the body at a position deviated from the central axis of the reaction container body so as to be substantially parallel to the central axis, the inner diameter of the reaction container body, the inner diameter of the reaction solution introducing pipe, and the light source. The relationship between the outer diameter of the and the flow rate of the reaction solution,
When the reaction liquid is introduced into the reaction container main body through the reaction liquid introduction pipe, the reaction liquid becomes a laminar flow spiral flow having the central axis of the reaction container main body as its central axis, and the light source is the layer. It was set so that a Karman vortex was formed behind the light source without breaking the laminar flow state of the laminar spiral flow at the same time as cutting off the flow of the reaction liquid that progressed as a stream-like spiral flow. Photochemical reaction device characterized by being a thing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63146119A JPH0657356B2 (en) | 1988-06-14 | 1988-06-14 | Photochemical reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63146119A JPH0657356B2 (en) | 1988-06-14 | 1988-06-14 | Photochemical reactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01315386A JPH01315386A (en) | 1989-12-20 |
| JPH0657356B2 true JPH0657356B2 (en) | 1994-08-03 |
Family
ID=15400586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63146119A Expired - Fee Related JPH0657356B2 (en) | 1988-06-14 | 1988-06-14 | Photochemical reactor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0657356B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2263514T3 (en) * | 1999-10-12 | 2006-12-16 | Pureuv (Proprieatry) Limited | STERILIZATION OF LIQUIDS USING ULTRAVIOLET LIGHT. |
| NZ518658A (en) * | 2002-04-30 | 2004-10-29 | Lionel Evans | Method of water treatment |
| JP5803215B2 (en) * | 2011-03-31 | 2015-11-04 | 岩崎電気株式会社 | UV treatment equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4719437U (en) * | 1971-03-01 | 1972-11-04 | ||
| JPS5027305A (en) * | 1973-07-12 | 1975-03-20 |
-
1988
- 1988-06-14 JP JP63146119A patent/JPH0657356B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01315386A (en) | 1989-12-20 |
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