JPH11277053A - Ultraviolet irradiation apparatus - Google Patents
Ultraviolet irradiation apparatusInfo
- Publication number
- JPH11277053A JPH11277053A JP9820598A JP9820598A JPH11277053A JP H11277053 A JPH11277053 A JP H11277053A JP 9820598 A JP9820598 A JP 9820598A JP 9820598 A JP9820598 A JP 9820598A JP H11277053 A JPH11277053 A JP H11277053A
- Authority
- JP
- Japan
- Prior art keywords
- pressure mercury
- ultraviolet
- low
- ultraviolet irradiation
- lamp
- 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
Landscapes
- Physical Water Treatments (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
Abstract
Description
【０００１】[0001]
【発明の利用分野】本発明は、低圧水銀ランプより照射
する１８５ｎｍの紫外線によって、液体中の有機物の分
解処理またはオゾンガスの生成等の紫外線照射処理を行
う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 relates to an ultraviolet irradiation apparatus for performing an ultraviolet irradiation treatment such as a decomposition treatment of an organic substance in a liquid or an ozone gas generation by using a 185 nm ultraviolet light emitted from a low-pressure mercury lamp.
【０００２】[0002]
【従来の技術】従来、低圧水銀ランプより照射される１
８５ｎｍの紫外線によって、液体中の有機物の分解また
はオゾンガスの生成等の紫外線照射処理を行う場合、こ
の低圧水銀ランプとしては管体の管径が１７〜３５ｍｍ
と１４〜１６ｍｍのものを使用することが考えられる。2. Description of the Related Art Heretofore, radiation from a low-pressure mercury lamp has
When performing ultraviolet irradiation treatment such as decomposition of organic matter in a liquid or generation of ozone gas with ultraviolet light of 85 nm, the low-pressure mercury lamp has a tube diameter of 17 to 35 mm.
It is conceivable to use one having a thickness of 14 to 16 mm.
【０００３】しかし、低圧水銀ランプの管体の管径が１
７〜３５ｍｍのものは１８５ｎｍの紫外線を発光するた
めの効率の点で不具合であるために、管体の管径が１４
〜１６ｍｍのものを使用することが多く、この場合の低
圧水銀ランプのランプ電流は０．２〜０．８Ａ未満であ
ることが通常であった。However, the diameter of the low pressure mercury lamp tube is 1
A tube having a diameter of 7 to 35 mm is inferior in terms of efficiency for emitting 185 nm ultraviolet light.
の も の 16 mm is often used, and the low-pressure mercury lamp in this case usually has a lamp current of less than 0.2 to 0.8 A.
【０００４】管体の管径を１５ｍｍにした低圧水銀ラン
プのランプ電流を０．２〜０．８Ａ未満にして紫外線照
射を行って、ランプ電流（Ａ）と１８５ｎｍの紫外線の
照度（μＷ／ｃｍ2 ）との関係を調べると、図１に示す
ように、１８５ｎｍの紫外線の照度が小さい問題があ
り、また、ランプ電流（Ａ）と消費電力当たりの１８５
ｎｍの紫外線の照度（％）との関係を調べると、図２の
ように、ランプ電流が１．１Ａ以上では消費電力当たり
の１８５ｎｍの紫外線の出力が小さい問題があった。A low-pressure mercury lamp having a tube diameter of 15 mm has a lamp current of 0.2 to less than 0.8 A, and is irradiated with ultraviolet light. The lamp current (A) and the illuminance of ultraviolet light of 185 nm (μW / cm) 2 ), there is a problem that the illuminance of the 185 nm ultraviolet light is small as shown in FIG. 1, and the lamp current (A) and 185 per power consumption are problematic.
When examining the relationship with the illuminance (%) of ultraviolet light of nm, there was a problem that the output of ultraviolet light of 185 nm per power consumption was small when the lamp current was 1.1 A or more, as shown in FIG.
【０００５】したがって、前述した管体の管径の低圧水
銀ランプと電流で紫外線照射を行うと、紫外線の照度が
小さく、消費電力当たりの紫外線の出力が小さくなるた
めに、液体中の有機物の分解が不完全になったり、オゾ
ンガスの生成量が低下する等の紫外線照射処理に問題が
発生することが多く、このような事態をさけるために、
低圧水銀ランプの本数を多くして対応することになり、
どうしても、紫外線照射装置のイニシヤルコスト及びラ
ンニングコストが増大する欠点があった。Therefore, when ultraviolet rays are irradiated with a low-pressure mercury lamp having a tube diameter as described above and an electric current, the illuminance of the ultraviolet rays is small and the output of the ultraviolet rays per power consumption is small. Is incomplete, or a problem often occurs in the ultraviolet irradiation treatment such as a decrease in the amount of generated ozone gas. In order to avoid such a situation,
By increasing the number of low-pressure mercury lamps,
Inevitably, there is a disadvantage that the initial cost and the running cost of the ultraviolet irradiation device increase.
【０００６】[0006]
【発明が解決しようとする課題】本発明は、管体の管径
を１４〜１６ｍｍにした低圧水銀ランプで、液体中の有
機物の分解処理またはオゾンガスの生成等の紫外線照射
処理を行うについて、１８５ｎｍの紫外線の照度を大き
くするとともに、消費電力当たりの１８５ｎｍの紫外線
の出力を大きくせさて、紫外線照射処理効率を向上させ
ることに目的がある。SUMMARY OF THE INVENTION The present invention relates to a low-pressure mercury lamp having a tube diameter of 14 to 16 mm, which is used for decomposing organic substances in a liquid or performing ultraviolet irradiation such as generation of ozone gas at 185 nm. It is an object to increase the illuminance of ultraviolet rays and to increase the output of 185 nm ultraviolet rays per power consumption, thereby improving the efficiency of ultraviolet irradiation treatment.
【０００７】また、本発明は、前述した管径の低圧水銀
ランプで、液体中の有機物の分解処理またはオゾンガス
の生成等の紫外線照射処理を行うについて、１８５ｎｍ
の紫外線の照度を大きくするとともに、消費電力当たり
の１８５ｎｍの紫外線の出力を大きくさせて、低圧水銀
ランプの本数を少なくすることによって、紫外線照射装
置のイニシヤルコスト及びランニングコストを安価に
し、これらのコストを削減することに目的がある。The present invention also relates to a method for decomposing an organic substance in a liquid or performing an ultraviolet irradiation treatment such as generation of ozone gas with a low-pressure mercury lamp having the above-mentioned tube diameter of 185 nm.
By reducing the number of low-pressure mercury lamps by increasing the illuminance of ultraviolet light of 185 nm per power consumption and reducing the number of low-pressure mercury lamps, the initial cost and running cost of the ultraviolet irradiation device can be reduced. The goal is to reduce costs.
【０００８】[0008]
【課題を解決するための手段】本発明は、液体中の有機
物の分解またはオゾンガスの生成等の紫外線照射処理を
行う紫外線照射装置に関するもので、紫外線を照射する
ランプの管体の管径を１４〜１６ｍｍにした低圧水銀ラ
ンプまたはこの低圧水銀ランプを挿填した透光管を、処
理槽内に設置して液体の紫外線照射処理を行うについ
て、この低圧水銀ランプの電流を０．８〜１．１Ａにす
ることによって、１８５ｎｍの紫外線の照度を大きくす
るとともに、消費電力当たりの１８５ｎｍの紫外線の出
力を大きくさせることに特徴がある。SUMMARY OF THE INVENTION The present invention relates to an ultraviolet irradiation apparatus for performing ultraviolet irradiation treatment such as decomposition of organic substances in a liquid or generation of ozone gas. When a low-pressure mercury lamp having a size of about 16 mm or a light-transmitting tube into which the low-pressure mercury lamp is inserted is installed in a treatment tank to perform ultraviolet irradiation of a liquid, the current of the low-pressure mercury lamp is set to 0.8 to 1. The characteristic is that the illuminance of 185 nm ultraviolet rays is increased by setting to 1 A, and the output of 185 nm ultraviolet rays per power consumption is increased.
【０００９】[0009]
【発明の実施の態様】本発明の紫外線照射装置において
は、管体の管径を１４〜１６ｍｍにした低圧水銀ランプ
の電流を、従来の場合の０．２〜０．８Ａ未満の範囲で
はなく、その下限を０．８Ａを超えて、上限を１．１Ａ
として紫外線照射を行うことによって、１８５ｎｍの紫
外線の照度と消費電力当たりの１８５ｎｍの紫外線の出
力を大きくすることにある。DESCRIPTION OF THE PREFERRED EMBODIMENTS In the ultraviolet irradiation apparatus of the present invention, the current of a low-pressure mercury lamp having a tube diameter of 14 to 16 mm is not limited to the range of 0.2 to less than 0.8 A in the conventional case. , The lower limit of which exceeds 0.8A and the upper limit of which is 1.1A
Is to increase the illuminance of 185 nm ultraviolet light and the output of 185 nm ultraviolet light per power consumption.
【００１０】たとえば、本発明の低圧水銀ランプ１とし
て、株式会社日本フォトサイエンス製の１８５ｎｍの紫
外線を照射する低圧水銀ランプＡＹ一９（発光長１４７
Ｏｍｍ・管径１５ｍｍ）を用いて、ランプ電流を変化さ
せて、ランプ電流に対する１８５ｎｍの紫外線の照度の
関係を調べると、前述した図１に示すように、ランプ電
流が、０．２〜０．８Ａ未満（従来の場合）であると１
８５ｎｍの紫外線の照度が小さく、０．８Ａを超えたと
ころから、急激に、１８５ｎｍの紫外線の照度が大きく
なり、１．７Ａ付近をピークとして、１．７Ａを超える
と、逆に次第に、１８５ｎｍの紫外線の照度は小さくな
ることを確認した。For example, as the low-pressure mercury lamp 1 of the present invention, a low-pressure mercury lamp AY-19 (light emission length: 147, manufactured by Nippon Photo Science Co., Ltd.) which emits 185 nm ultraviolet rays.
Omm / tube diameter 15 mm), the lamp current was varied to examine the relationship between the lamp current and the illuminance of the 185 nm ultraviolet light. As shown in FIG. If it is less than 8A (conventional case), 1
When the illuminance of the 85 nm ultraviolet light is small and exceeds 0.8 A, the illuminance of the 185 nm ultraviolet light rapidly increases, peaks at around 1.7 A, and when it exceeds 1.7 A, the 185 nm ultraviolet light gradually increases. It was confirmed that the illuminance of ultraviolet rays was reduced.
【００１１】一方、同じランプを用いて、ランプ電流を
変化させて、ランプ電流に対する消費電力あたりの１８
５ｎｍの紫外線照射出力の関係を調べると、前述した図
２に示すように、ランプ電流が０．８Ａを超えたところ
から、急激に、ランプ電流に対する消賞電力あたりの１
８５ｎｍの紫外線出カが大きくなり、１Ａ付近をピーク
として、１．１Ａを超えると、逆に急激に、消賢電力あ
たりの１８５ｎｍ紫外線出力が小さくなって行くことを
把握した。On the other hand, using the same lamp and changing the lamp current, 18 per power consumption with respect to the lamp current is used.
When examining the relationship between the UV irradiation outputs of 5 nm, as shown in FIG. 2 described above, when the lamp current exceeds 0.8 A, the lamp current suddenly drops by 1 per prize power to the lamp current.
It was found that the UV output at 85 nm increased and peaked at around 1 A, and when it exceeded 1.1 A, the UV output at 185 nm per quenching power rapidly decreased.
【００１２】換言すると、前述した図１に示すランプ電
流と１８５ｎｍの紫外線の照度の現象、図２に示すラン
プ電流と消費電力あたりの１８５ｎｍの紫外線出力の現
象より、管体の管径を１４〜１６ｍｍにした低圧水銀ラ
ンプの電流を０．８〜１．１Ａにすることによって、低
圧水銀ランプの１８５ｎｍの紫外線の照度を大きくで
き、消費電力当たりの１８５ｎｍの紫外線の出力も大き
くできることを知見し、これによって本発明を構成した
のである。In other words, based on the above-described phenomenon of the lamp current and the illuminance of the 185 nm ultraviolet ray shown in FIG. 1 and the phenomenon of the lamp current and the 185 nm ultraviolet output per power consumption shown in FIG. By setting the current of the low-pressure mercury lamp of 16 mm to 0.8 to 1.1 A, the illuminance of ultraviolet light of 185 nm of the low-pressure mercury lamp can be increased, and the output of ultraviolet light of 185 nm per power consumption can be increased. This constituted the present invention.
【００１３】同様のことは、株式会社日本フォトサイエ
ンス製の１８５ｎｍの紫外線を照射する低圧水銀ランプ
ＡＹ一１１（発光長２７６ｍｍ・管径１５ｍｍ）、ＡＹ
一１２（発光長３５１ｍｍ・管径１５ｍｍ）、ＡＹ−５
（発光長７６Ｏｍｍ・管径１５ｍｍ）、ＡＹ−６（発光
長１４７Ｏｍｍ・管径１５ｍｍ）、ＡＹ−７（発光長７
６Ｏｍｍ・管径１５ｍｍ）についても確認し、これらの
低圧水銀ランプの電流を変化させて、１８５ｎｍの紫外
線照度と消費電力当たりの１８５ｎｍの紫外線の出力を
調べた結果、図３と図４に示すように、いずれの低圧水
銀ランプも、図１と図２の結果と同様になった。The same applies to a low-pressure mercury lamp AY-11 (irradiation length: 276 mm, tube diameter: 15 mm), irradiating 185 nm ultraviolet rays, manufactured by Japan Photo Science Co., Ltd.
1-12 (light emission length 351 mm, tube diameter 15 mm), AY-5
(Emission length: 76 Omm, tube diameter: 15 mm), AY-6 (Emission length: 147 Omm, tube diameter: 15 mm), AY-7 (Emission length: 7
6 Omm and a tube diameter of 15 mm), and by changing the current of these low-pressure mercury lamps, the illuminance of ultraviolet rays at 185 nm and the output of ultraviolet rays at 185 nm per power consumption were examined. As a result, as shown in FIGS. In each of the low-pressure mercury lamps, the results were the same as those shown in FIGS.
【００１４】低圧水銀ランプの照度については、図１と
図３に示すように、ランプ電流が０．５〜１．７Ａまで
の範囲では、ランプ電流が大きい方が１８５ｎｍの紫外
線の出力が大きいので、このことは、低圧水銀ランプと
して、ＡＹ−６をランプ電流０．５Ａで２本使用した場
合と、ＡＹ−６をランプ電流１．０Ａで１本使用した場
合に、１８５ｎｍの紫外線の出力が同じであるので、紫
外線照射装置としての設備を考える時、ランプ本数が少
ない方がイニシヤルコストが低くなることから、一本の
ＡＹ一６をランプ電流１．０Ａで使用した方が得策であ
ることが判る。As shown in FIGS. 1 and 3, when the lamp current is in the range of 0.5 to 1.7 A, the output of the 185 nm ultraviolet ray is larger when the lamp current is larger. This means that when two AY-6 lamps are used at a lamp current of 0.5 A and one AY-6 lamp is used at a lamp current of 1.0 A, the output of ultraviolet light of 185 nm is low. Since the same is true, when considering the equipment as an ultraviolet irradiation device, the smaller the number of lamps, the lower the initial cost. Therefore, it is better to use one AY-16 at a lamp current of 1.0 A. You can see that.
【００１５】また、このことは、発光長が異なる低圧水
銀ランプである、ＡＹ−６をランプ電流０．５Ａで２本
使用した場合と、ＡＹ−９をランプ電流１．０Ａで１本
使用した場合においても、全く同様であって、ＡＹ−６
をランプ電流０．５Ａで２本使用するより、ＡＹ−９を
ランプ電流１．０Ａで１本使用したようが得策であると
いえる。[0015] This also means that two low-pressure mercury lamps having different emission lengths, AY-6 at a lamp current of 0.5 A, and one AY-9 at a lamp current of 1.0 A were used. In the case, the same is true, and AY-6
It can be said that it is better to use one AY-9 at a lamp current of 1.0 A than to use two AY-9 at a lamp current of 0.5 A.
【００１６】また、ランプ電流に対する消費電力あたり
の１８５ｎｍ紫外線の出カについては、図２と図４に示
すように、ランプ電流が０．８〜１．１Ａまでの範囲で
は、ランプ電流が大きい方が消費電力あたりの１８５ｎ
ｍの紫外線の出力は大きく、ランプ電流が１．１Ａを超
えると消費電力あたりの１８５ｎｍの紫外線の出力が小
さくなって行く。As shown in FIGS. 2 and 4, with respect to the output of 185 nm ultraviolet light per power consumption with respect to the lamp current, when the lamp current is in the range of 0.8 to 1.1 A, the larger the lamp current, Is 185n per power consumption
The output of ultraviolet light of m is large, and when the lamp current exceeds 1.1 A, the output of ultraviolet light of 185 nm per power consumption decreases.
【００１７】したがって、低圧水銀ランプとして、ＡＹ
−６をランプ電流０．５Ａで２本使用した場合と、ＡＹ
−６をランプ電流１．０Ａで１本使用した場合に、消費
電力あたりの１８５ｎｍの紫外線の出力が同じであるの
で、紫外線照射装置としての設備を考える時、ランプ本
数が少ない方がイニシヤルコストが低くなることから、
一本のＡＹ一６をランプ電流１．０Ａで使用した方が得
策であり、このことは、発光長が異なる低圧水銀ランプ
においても同じである。Therefore, as a low-pressure mercury lamp, AY
-6 at a lamp current of 0.5 A and AY
When one lamp is used at a lamp current of 1.0 A, the output of ultraviolet light of 185 nm per power consumption is the same. Therefore, when considering equipment as an ultraviolet irradiation device, the smaller the number of lamps, the lower the initial cost. Is lower,
It is better to use one AY-16 at a lamp current of 1.0 A, which is the same for low-pressure mercury lamps having different emission lengths.
【００１８】以上で明らかなように、前述した管体の管
径の低圧水銀ランプにおいては、１８５ｎｍの紫外線の
照度を大きく、かつ、消費電力当たりの１８５ｎｍの紫
外線の出力を大きくするためには、換言すると、ランプ
本数を少なくしてイニシヤルコストとランニングコスト
を低くするためには、低圧水銀ランプの電流を０．８〜
１．１Ａの範囲にすればよいという知見に到達した。As is apparent from the above, in the low-pressure mercury lamp having the tube diameter described above, in order to increase the illuminance of the 185 nm ultraviolet ray and to increase the output of the 185 nm ultraviolet ray per power consumption, In other words, in order to reduce the number of lamps and the initial cost and running cost, the current of the low-pressure mercury lamp must be 0.8 to 0.8.
It has been found that the range may be 1.1A.
【００１９】以下に本発明の紫外線照射装置の実施態様
の一例を図５に従って説明すると、従来の低圧水銀ラン
プと同じように、紫外線を照射する低圧水銀ランプ１
は、石英ガラス製の管体２の管径を１４〜１６ｍｍに
し、この管体２の両端に一対の電極３ａ、３ｂを取り付
けるとともに、管体２の中に数ｍｇの水銀と数Ｔｏｒｒ
のアルゴンガスを封入する。An example of an embodiment of the ultraviolet irradiation apparatus according to the present invention will be described below with reference to FIG. 5. A low-pressure mercury lamp 1 for irradiating ultraviolet light, similarly to a conventional low-pressure mercury lamp.
Is to make the tube diameter of the quartz glass tube 2 14 to 16 mm, attach a pair of electrodes 3a and 3b to both ends of the tube 2, and put several mg of mercury and several Torr in the tube 2.
Of argon gas.
【００２０】前述した低圧水銀ランプ１の管体２を、石
英ガラス製の透光管５内に収納するが、その収納の一例
としては、低圧水銀ランプ１の管体２の両端に設けた口
金４ａ、４ｂに、透光管５の位置だしを兼ねたソケット
６ａ、６ｂと嵌合して、低圧水銀ランプ１の管体２を透
光管５に内に収納すればよい。The tube 2 of the low-pressure mercury lamp 1 described above is housed in a light transmitting tube 5 made of quartz glass. As an example of the housing, the bases provided at both ends of the tube 2 of the low-pressure mercury lamp 1 are used. The tube 2 of the low-pressure mercury lamp 1 may be housed in the light-transmitting tube 5 by fitting the light-transmitting tube 5 with the sockets 6a, 6b also serving as the positioning of the light-transmitting tube 5.
【００２１】透光管５内に収納した低圧水銀蒸気放電灯
１は、液槽７内に設置したリード線８ａ、８ｂに接続
し、このリード線８ａ、８ｂを電源（図示せず）に接続
して、液槽７内に流入する被処理液９に浸漬して、紫外
線照射処理を行う流路を形成する。なお、低圧水銀ラン
プ１の管体２は、石英ガラス製の透光管５内に収納せず
に、直接、液槽７内に挿填して被処理液９に浸漬しても
かまわない。The low-pressure mercury vapor discharge lamp 1 housed in the light transmitting tube 5 is connected to lead wires 8a and 8b installed in a liquid tank 7, and these lead wires 8a and 8b are connected to a power source (not shown). Then, it is immersed in the liquid to be treated 9 flowing into the liquid tank 7 to form a flow path for performing the ultraviolet irradiation treatment. The tube 2 of the low-pressure mercury lamp 1 may be directly inserted into the liquid tank 7 and immersed in the liquid 9 to be treated, without being housed in the light transmitting tube 5 made of quartz glass.
【００２２】[0022]
【実施例１】株式会社日本フォトサイエンス製の石英ガ
ラスよりなる１３５ｗの低圧水銀ランプＡＹ一９（発光
長１４７Ｏｍｍ、管体管径１５ｍｍ）を内蔵した石英ガ
ラス製の透光管（内径２０ｍｍ、長さ１５６０ｍｍ）の
４本を間隔（３０ｍｍ）を置いて、シリンダー型の処理
槽（内径８３ｍｍ、長さ１５００ｍｍ）に挿填した紫外
線照射装置を３基用意し、第１基においてはランプの電
流を１．０Ａとして本発明の紫外線照射装置（Ａ）と
し、第２基においてはランプの電流を０．７Ａとして従
来の紫外線照射装置（Ｂ）とし、第３基においてはラン
プの電流を１．３Ａとして従来の紫外線照射装置（Ｃ）
とした。Embodiment 1 A quartz glass light-transmitting tube (inner diameter 20 mm, long) incorporating a 135 w low-pressure mercury lamp AY-19 (light emission length 147 Omm, tube diameter 15 mm) made of quartz glass manufactured by Japan Photo Science Co., Ltd. (1560 mm) at intervals (30 mm), and three ultraviolet irradiation devices were prepared which were inserted into a cylindrical processing tank (inner diameter: 83 mm, length: 1500 mm). 1.0A is the ultraviolet irradiation device (A) of the present invention, the second unit is 0.7A and the conventional ultraviolet irradiation device (B) is 0.7A, and the third unit is 1.3A. As conventional UV irradiation equipment (C)
And
【００２３】そして、ＴＯＣ成分（メタノールとして）
を３０ｐｐｂ含む純水製造装置の二次純水である原液
を、前述した本発明の紫外線照射装置（Ａ）、従来の紫
外線照射装置（Ｂ）と（Ｃ）に、それぞれ４ｍ3 ／ｈｒ
の流量で通液して、原液中のＴＯＣ成分の分解処理を行
い、（Ａ）、（Ｂ）、（Ｃ）の各装置について、（イ）
１８５ｎｍの紫外線の照度（μＷ／ｃｍ2 ）、（ロ）消
費電力当たりの１８５ｎｍの紫外線の出力（％）、
（ハ）処理液中のＴＯＣ成分量（ｐｐｂ）、（ニ）消費
電力費（円／ｍ3 ）を測定したところ、以下に述べるよ
うな結果になった。And a TOC component (as methanol)
Of the secondary water of a pure water production apparatus containing 30 ppb of the above-mentioned solution to the ultraviolet irradiation apparatus (A) of the present invention and the conventional ultraviolet irradiation apparatuses (B) and (C), respectively, at 4 m 3 / hr.
And the decomposition of the TOC component in the undiluted solution is carried out at the flow rates of (A), (B) and (C).
Illuminance of 185 nm ultraviolet ray (μW / cm 2 ), (b) Output of 185 nm ultraviolet ray per power consumption (%),
(C) The amount of the TOC component (ppb) in the treatment liquid and (d) the power consumption cost (yen / m 3 ) were measured, and the following results were obtained.
【００２４】 本発明装置（Ａ） 従来装置（Ｂ） 従来装置（Ｃ） ( 1.0 A ) ( 0.7 A ) ( 1.3 A ) （イ）１８５ｎｍの 紫外線の照度 １１０ ８５ １２７ (μｗ／ｃｍ2 ） （２６０ｍｍの距離で測定） （ロ）消費電力当たり の１８５ｎｍの 紫外線の出力 １．６７ １．６０ １．５３ （％） （ハ）処理液中の ＴＯＣ成分量 ５．０ ７．５ ３．８ （ｐｐｂ） （イオン交換装置の出口で測定） （ニ）消費電力費 （円／ｍ3 ） ２．０３ １．４２ ２．６３ （１２円／ｋｗｈととして） Apparatus of the Present Invention (A) Conventional Apparatus (B) Conventional Apparatus (C) (1.0 A) (0.7 A) (1.3 A) (A) Illuminance of 185 nm Ultraviolet Ray 110 85 127 (μw / cm 2 ) (260 mm (B) Output of ultraviolet light of 185 nm per power consumption 1.67 1.60 1.53 (%) (c) TOC component amount in processing solution 5.0 7.5 3.8 (ppb) (Measured at the exit of the ion exchanger) (d) Power consumption (yen / m 3 ) 2.03 1.42 2.63 (as 12 yen / kwh)
【００２５】[0025]
【実施例２】株式会社日本フォトサイエンス製の石英ガ
ラスよりなる７２ｗの低圧水銀ランプＡＹ−６（発光長
１４７Ｏｍｍ・管体管径１５ｍｍ）１本を、シリンダー
型の処理槽（内径１５０ｍｍ、長さ１５００ｍｍ）に挿
填した紫外線照射装置を３基用意し、第１基においては
ランプの電流を１．０Ａとして本発明の紫外線照射装置
（Ａ）とし、第２基においてはランプの電流を０．７Ａ
として従来の紫外線照射装置（Ｂ）とし、第３基におい
てはランプの電流を１．３Ａとして従来の紫外線照射装
置（Ｃ）とした。Embodiment 2 A low-pressure mercury lamp AY-6 (luminous length: 147 Omm, tube diameter: 15 mm) made of quartz glass manufactured by Nippon Photo Science Co., Ltd. was used in a cylindrical processing tank (inner diameter: 150 mm, length) (1500 mm), three ultraviolet irradiation devices were prepared. The first one had a lamp current of 1.0 A, and the ultraviolet irradiation device (A) of the present invention was used. 7A
And a conventional ultraviolet irradiation device (C) with a lamp current of 1.3 A for the third unit.
【００２６】そして、空気を前述した本発明の紫外線照
射装置（Ａ）、従来の紫外線照射装置（Ｂ）と（Ｃ）
に、それぞれ１ｍ3 ／ｈｒの流量で通過して、空気中の
ＴＯＣ成分の分解処理を行い、（Ａ）、（Ｂ）、（Ｃ）
の各装置について、（イ）１８５ｎｍの紫外線の照度
（μＷ／ｃｍ2 ）、（ロ）消費電力当たりの１８５ｎｍ
の紫外線の出力（％）、（ハ）処理液中のオゾン成分量
（ｐｐｂ）、（ニ）消費電力費（円／リットル）を測定
したところ、以下のような結果になった。Then, the above-mentioned ultraviolet irradiation apparatus (A) of the present invention and the conventional ultraviolet irradiation apparatuses (B) and (C)
At a flow rate of 1 m 3 / hr to decompose the TOC component in the air, and (A), (B), (C)
(B) the illuminance (μW / cm 2 ) of 185 nm ultraviolet light, and (b) 185 nm per power consumption.
The UV output (%), (c) the amount of ozone component in the treatment liquid (ppb), and (d) the power consumption cost (yen / liter) were measured, and the following results were obtained.
【００２７】 本発明装置（Ａ） 従来装置（Ｂ） 従来装置（Ｃ） ( 1.0 A ) ( 0.7 A ) ( 1.3 A ) （イ）１８５ｎｍの 紫外線の照度 １１０ ８５ １２７ (μｗ／ｃｍ2 ） （２６０ｍｍの距離で測定） （ロ）消費電力当たり の１８５ｎｍの 紫外線の出力 １．６７ １．６０ １．５３ （％） （ハ）処理空気中の オゾン成分量 ５００ ３３０ ６２０ （ｐｐｂ） （ニ）消費電力費 （円／ｍ3 ） ２．０５ １．４４ ２．６５ （１２円／ｋｗｈととして） Apparatus of the Present Invention (A) Conventional Apparatus (B) Conventional Apparatus (C) (1.0 A) (0.7 A) (1.3 A) (A) Illuminance of 185 nm Ultraviolet Ray 110 85 127 (μw / cm 2 ) (260 mm (B) Output of ultraviolet light of 185 nm per power consumption 1.67 1.60 1.53 (%) (c) Ozone component amount in treated air 500 330 620 (ppb) (d) Power consumption Expense (yen / m 3 ) 2.05 1.44 2.65 (assuming 12 yen / kwh)
【００２８】[0028]
【発明の効果】以上述べたように、液体中の有機物の分
解またはオゾンガスの生成等の紫外線照射処理を行うに
ついて、本発明装置によると、従来装置に比較して、１
８５ｎｍの紫外線の照度を１．１〜３倍大きくすること
が可能であるとともに、消費電力当たりの１８５ｎｍの
紫外線の出力も併せてを１．１〜２倍大きくすることが
可能であり、紫外線照射処理効率を飛躍的に向上させる
ことができる優れた効果がある。As described above, according to the apparatus of the present invention, the ultraviolet irradiation treatment such as the decomposition of organic matter in the liquid or the generation of ozone gas is performed by one time as compared with the conventional apparatus.
The illuminance of the ultraviolet light of 85 nm can be increased by 1.1 to 3 times, and the output of the ultraviolet light of 185 nm per power consumption can also be increased by 1.1 to 2 times. There is an excellent effect that processing efficiency can be dramatically improved.
【００２９】また、本発明装置によると、従来装置に比
較して、低圧水銀ランプの本数を少なくすることが可能
であり（同性能の紫外線照射装置を設計する場合）、紫
外線照射装置のイニシヤルコストを１／１．１〜１／
２．５に低減することが可能であり、さらにランニング
コストも１／１．１〜１／２に削減できるメリットがあ
る。Further, according to the apparatus of the present invention, it is possible to reduce the number of low-pressure mercury lamps as compared with the conventional apparatus (in the case of designing an ultraviolet irradiation apparatus having the same performance). Cost is 1 / 1.1-1 / 1 /
There is an advantage that the running cost can be reduced to 2.5 and the running cost can also be reduced to 1 / 1.1-2.
【図１】株式会社日本フォトサイエンス製の低圧水銀ラ
ンプＡＹ一９（管径１５ｍｍ）の電流を０．５〜２．２
Ａに変化させた場合の１８５ｎｍの紫外線の変化を示す
グラフである。FIG. 1 shows that the current of a low-pressure mercury lamp AY-19 (tube diameter 15 mm) manufactured by Nippon Photoscience Inc. is 0.5 to 2.2.
6 is a graph showing a change in ultraviolet light at 185 nm when the wavelength is changed to A.
【図２】株式会社日本フォトサイエンス製の低圧水銀ラ
ンプＡＹ一９（管径１５ｍｍ）の電流を０．７〜２．２
Ａに変化させた場合の消費電力あたりの１８５ｎｍの紫
外線出力の変化を示すグラフである。FIG. 2 shows that the current of a low-pressure mercury lamp AY-19 (tube diameter: 15 mm) manufactured by Nippon Photoscience Co., Ltd. is 0.7 to 2.2.
6 is a graph showing a change in ultraviolet output at 185 nm per power consumption when the power is changed to A.
【図３】株式会社日本フォトサイエンス製の低圧水銀ラ
ンプＡＹ一６等（管径１５ｍｍ）の電流を０．４〜２．
２Ａに変化させた場合の１８５ｎｍの紫外線の変化を示
すグラフである。FIG. 3 shows that the current of a low-pressure mercury lamp AY-16 (tube diameter: 15 mm) manufactured by Japan Photo Science Co., Ltd.
It is a graph which shows the change of 185 nm ultraviolet rays when changing it to 2A.
【図４】株式会社日本フォトサイエンス製の低圧水銀ラ
ンプＡＹ一６等（管径１５ｍｍ）の電流を０．４〜２．
１Ａに変化させた場合の消費電力あたりの１８５ｎｍの
紫外線出力の変化を示すグラフである。FIG. 4 shows that the current of a low-pressure mercury lamp AY-16 (tube diameter: 15 mm) manufactured by Japan Photo Science Co., Ltd.
It is a graph which shows the change of the 185 nm ultraviolet output per power consumption at the time of changing to 1A.
【図５】管体の管径を１４〜１６ｍｍにした低圧水銀ラ
ンプを透光管に収納して処理槽内に挿填した紫外線照射
装置の断面説明図である。FIG. 5 is a cross-sectional explanatory view of an ultraviolet irradiation device in which a low-pressure mercury lamp having a tube diameter of 14 to 16 mm is housed in a light-transmitting tube and inserted into a processing tank.
１ 低圧水銀ランプ ２ 管体 ３ 電極 ４ 口金 ５ 透光管 ６ ソケット ７ 液槽 ８ リード線 ９ 被処理液 DESCRIPTION OF SYMBOLS 1 Low-pressure mercury lamp 2 Tube 3 Electrode 4 Cap 5 Translucent tube 6 Socket 7 Liquid tank 8 Lead wire 9 Liquid to be treated
Claims (1)
４〜１６ｍｍにした低圧水銀ランプまたはこの低圧水銀
ランプを挿填した透光管を、処理槽内に設置して紫外線
照射処理を行うについて、この低圧水銀ランプの電流を
０．８〜１．１Ａにすることによって、１８５ｎｍの紫
外線の照度を大きくするとともに、消費電力当たりの１
８５ｎｍの紫外線の出力を大きくする紫外線照射装置。1. The tube of a lamp for irradiating ultraviolet rays has a diameter of 1
When a low-pressure mercury lamp having a size of 4 to 16 mm or a light-transmitting tube into which the low-pressure mercury lamp is inserted is installed in a processing tank to perform an ultraviolet irradiation process, the current of the low-pressure mercury lamp is 0.8 to 1.1 A. To increase the illuminance of 185 nm ultraviolet light,
An ultraviolet irradiation device that increases the output of 85 nm ultraviolet light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9820598A JPH11277053A (en) | 1998-03-27 | 1998-03-27 | Ultraviolet irradiation apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9820598A JPH11277053A (en) | 1998-03-27 | 1998-03-27 | Ultraviolet irradiation apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11277053A true JPH11277053A (en) | 1999-10-12 |
Family
ID=14213502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9820598A Pending JPH11277053A (en) | 1998-03-27 | 1998-03-27 | Ultraviolet irradiation apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11277053A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006037578A2 (en) * | 2004-10-01 | 2006-04-13 | Dr. Hönle AG | Gas discharge lamp, system and method for hardening materials hardenable by means of uv-light, and material hardened by uv-light |
| KR100795275B1 (en) * | 2001-11-07 | 2008-01-15 | 가부시키가이샤 니혼포토사이언스 | Ultraviolet ray irradiation device and operation method thereof |
| JP2014022574A (en) * | 2012-07-18 | 2014-02-03 | Disco Abrasive Syst Ltd | Processing apparatus including ultraviolet irradiation means |
-
1998
- 1998-03-27 JP JP9820598A patent/JPH11277053A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100795275B1 (en) * | 2001-11-07 | 2008-01-15 | 가부시키가이샤 니혼포토사이언스 | Ultraviolet ray irradiation device and operation method thereof |
| WO2006037578A2 (en) * | 2004-10-01 | 2006-04-13 | Dr. Hönle AG | Gas discharge lamp, system and method for hardening materials hardenable by means of uv-light, and material hardened by uv-light |
| WO2006037578A3 (en) * | 2004-10-01 | 2009-03-12 | Hoenle Ag Dr | Gas discharge lamp, system and method for hardening materials hardenable by means of uv-light, and material hardened by uv-light |
| JP2014022574A (en) * | 2012-07-18 | 2014-02-03 | Disco Abrasive Syst Ltd | Processing apparatus including ultraviolet irradiation means |
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