JPH06218367A - Water passing vessel to be irradiated with laser beam - Google Patents
Water passing vessel to be irradiated with laser beamInfo
- Publication number
- JPH06218367A JPH06218367A JP874693A JP874693A JPH06218367A JP H06218367 A JPH06218367 A JP H06218367A JP 874693 A JP874693 A JP 874693A JP 874693 A JP874693 A JP 874693A JP H06218367 A JPH06218367 A JP H06218367A
- Authority
- JP
- Japan
- Prior art keywords
- laser
- vessel
- aquatic
- spherical
- water tank
- 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.)
- Withdrawn
Links
Landscapes
- Physical Water Treatments (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、レーザー照射装置の
改良に関し、より詳細には、レーザービームの反射を良
好に行い、水中の被照射物へのレーザー照射率を高める
ためのレーザー照射用通水槽に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a laser irradiation device, and more particularly to a laser irradiation device for reflecting a laser beam well and increasing the laser irradiation rate to an object to be irradiated in water. Regarding the aquarium.
【０００２】この発明によるレーザー照射用通水槽は、
たとえば、ムラサキイガイ、カキなどの貝類や、フギツ
ボなどの水生動物、藻類などの水生植物あるいは水生微
生物など生態上付着性を有する生物（これらを総称して
「水生生物」と呼ぶ）が、発電所または各種工場の機
器、配管および水路などの内面に付着し、成長および繁
殖するために、同照射用通水槽内に海水を流し海水中の
水生生物をレーザー照射により効果的に殺傷するのに使
用される。The water tank for laser irradiation according to the present invention is
For example, ecologically adherent organisms such as shellfish such as mussels and oysters, aquatic animals such as barnacles, aquatic plants such as algae, and aquatic microorganisms (collectively referred to as "aquatic organisms") It adheres to the inner surfaces of equipment, pipes and waterways of various factories, and is used to effectively kill the aquatic life in the seawater by laser irradiation by flowing seawater into the irradiation water tank in order to grow and reproduce. It
【０００３】[0003]
【従来の技術】従来のレーザー照射装置は、図２に示す
ように構成されている。すなわち、レーザー照射用通水
槽(11)は円筒状であって、内面が反射面になされてい
る。同通水槽(11)の一端はガラス板(12)を介して窓(13)
付き反射板(14)で閉じられ、他端は反射板(15)で閉じら
れている。レーザー照射用通水槽(11)の一端上部には海
水導入口(16)が設けられ、他端下部には海水排出口(17)
が設けられている。2. Description of the Related Art A conventional laser irradiation device is constructed as shown in FIG. That is, the water tank for laser irradiation (11) has a cylindrical shape, and the inner surface is a reflecting surface. One end of the water tank (11) has a window (13) through a glass plate (12).
It is closed by a reflection plate (14) and the other end is closed by a reflection plate (15). A seawater inlet (16) is provided at the upper end of one end of the water tank (11) for laser irradiation, and a seawater outlet (17) is provided at the lower end of the other end.
Is provided.
【０００４】レーザー照射用通水槽(11)の軸線上には窓
(13)に向かってレーザーを発振するレーザー発振器(18)
が設けられ、また、レーザー照射用通水槽(1) とレーザ
ー発振器(18)の間にはレーザービームを走査させるスキ
ャナ(19)が配置されている。There is a window on the axis of the water tank (11) for laser irradiation.
Laser oscillator that oscillates a laser toward (13) (18)
Further, a scanner (19) for scanning a laser beam is arranged between the laser irradiation water tank (1) and the laser oscillator (18).
【０００５】[0005]
【発明が解決すべき課題】上記構成のレーザー照射装置
では、レーザー照射用通水槽(11)は円筒状であるため、
レーザービームの反射が十分になされず、したがって水
生生物へのレーザー照射が効果的になされないうちに、
レーザービームは減衰してしまう。In the laser irradiation apparatus having the above structure, since the laser irradiation water tank (11) is cylindrical,
Before the laser beam is reflected sufficiently, and thus the aquatic organism is not effectively lasered,
The laser beam will be attenuated.
【０００６】この発明は、上記の点に鑑み、レーザービ
ームの反射を十分になし得、これにより水生生物へのレ
ーザー照射を効果的になし得るレーザー照射用通水槽を
提供することにある。In view of the above points, the present invention is to provide a water tank for laser irradiation which can sufficiently reflect a laser beam and thereby effectively irradiate aquatic organisms with laser.
【０００７】[0007]
【課題を解決するための手段】この発明によるレーザー
照射用通水槽は、上記目的を達成すべく工夫されたもの
であり、球形をなすことを特徴とするものである。The water tank for laser irradiation according to the present invention has been devised to achieve the above object, and is characterized by having a spherical shape.
【０００８】レーザー照射用通水槽は一側部にレーザー
入光口を有し、内面はレーザーを効果的に反射する反射
面になされている。The water tank for laser irradiation has a laser light entrance on one side, and the inner surface is a reflecting surface that effectively reflects the laser.
【０００９】使用可能なレーザーは、ＹＡＧレーザー、
窒素ガスレーザーなどを光源（励起源）とした色素レー
ザーや、同種２原子からなるエキシマレーザー、たとえ
ばＸｅ2 （１７３ｎｍ）、Ｋｒ2 （１４５．７ｎｍ）、
Ａｒ2 （１２６．１ｎｍ）など、異種２原子からなるエ
キシマレーザー、たとえばＫｒＦ（２４８．５ｎｍ、２
４９．５ｎｍ）、ＸｅＦ（３５３．１ｎｍ、３５１．１
ｎｍ）、ＸｅＣｌ（３０８ｎｍ）、エキシマからのエネ
ルギー移動を用いたもの、たとえばＨｅ−Ｎ（４２７．
５ｎｍなどである。色素レーザーは単一波長、単一使
用、または複数波長、複合使用で用いる。水生生物の殺
傷にはアルゴンレーザーやＹＡＧレーザーがよく用いら
れる。A laser that can be used is a YAG laser,
A dye laser using a nitrogen gas laser as a light source (excitation source), an excimer laser composed of two atoms of the same kind, such as Xe 2 (173 nm), Kr 2 (145.7 nm),
An excimer laser composed of two different atoms such as Ar 2 (126.1 nm), for example, KrF (248.5 nm, 2
49.5 nm), XeF (353.1 nm, 351.1)
nm), XeCl (308 nm), using energy transfer from excimer, such as He—N (427.
5 nm or the like. Dye lasers are used in single wavelength, single use, or multiple wavelength, combined use. Argon lasers and YAG lasers are often used to kill aquatic organisms.
【００１０】レーザー照射の水生生物に対する殺傷作用
は、レーザーの波長、照射単位面積当たりの光エネルギ
ーなどにより左右される。使用可能なレーザーの波長は
３５０〜１０００ｎｍ位である。The killing action of laser irradiation on aquatic organisms depends on the wavelength of the laser, the light energy per unit area of irradiation, and the like. A usable laser wavelength is about 350 to 1000 nm.
【００１１】レーザー照射用通水槽とレーザー発振器の
間には、レーザービームを走査させるスキャナを配置す
ることも好ましい。It is also preferable to dispose a scanner for scanning the laser beam between the laser irradiation water tank and the laser oscillator.
【００１２】[0012]
【作用】この発明によるレーザー照射用通水槽は球形を
なすので、レーザー発振器から出たレーザービームはレ
ーザー入光口を経て球形のレーザー照射用通水槽に入
り、その内面で反射され、反射ビームはさらに球形内面
で反射される。レーザービームはこのように反射を繰り
返す結果、減衰するまで球形内面で何回も反射し、レー
ザー照射用通水槽内を流通する海水中の水生生物へのレ
ーザー照射が効果的になされる。Since the laser irradiation water tank according to the present invention has a spherical shape, the laser beam emitted from the laser oscillator enters the spherical laser irradiation water tank through the laser light entrance port and is reflected by the inner surface of the laser irradiation water tank. Furthermore, it is reflected on the spherical inner surface. As a result of repeating the reflection in this way, the laser beam is reflected many times on the spherical inner surface until it attenuates, and the aquatic organisms in the seawater flowing in the laser irradiation water tank are effectively irradiated with the laser.
【００１３】[0013]
【実施例】つぎに、この発明の実施例を示す。EXAMPLES Examples of the present invention will be described below.
【００１４】レーザー照射装置は、図１に示すように構
成されている。すなわち、レーザー照射用通水槽(1) は
球形であって、一側にレーザー入光口(5) が設けられて
いる。レーザー入光口(5) はガラス板(2) を介して窓
(3) 付き反射板(4) で閉じられている。レーザー照射用
通水槽(1) の一端上部には海水導入口(6) が設けられ、
他端下部には海水排出口(7) が設けられている。The laser irradiation device is constructed as shown in FIG. That is, the water tank for laser irradiation (1) is spherical, and the laser light entrance (5) is provided on one side. The laser entrance (5) is opened through the glass plate (2) to the window.
(3) Closed with a reflector (4). A seawater inlet (6) is provided at the upper part of one end of the water tank (1) for laser irradiation.
A seawater discharge port (7) is provided at the bottom of the other end.
【００１５】球形のレーザー照射用通水槽(1) の内面は
レーザー反射面になされている。The inner surface of the spherical laser irradiation water tank (1) is a laser reflecting surface.
【００１６】レーザー照射用通水槽(1) の軸線上には窓
(3) に向かってレーザーを発振するレーザー発振器(8)
が設けられている。また、レーザー照射用通水槽(1) と
レーザー発振器(8) の間にはレーザービームを走査させ
るスキャナ(9) が配置されている。A window is provided on the axis of the water tank (1) for laser irradiation.
Laser oscillator that oscillates a laser toward (3) (8)
Is provided. Further, a scanner (9) for scanning a laser beam is arranged between the laser irradiation water tank (1) and the laser oscillator (8).
【００１７】球形のレーザー照射用通水槽(1) の内部に
は、水生生物を含んだ海水が海水導入口(6) から導入さ
れ、同内部を流通し、海水排出口(7) から排出される。Seawater containing aquatic organisms is introduced into the spherical laser irradiation water tank (1) from the seawater inlet (6), flows through the inside, and is discharged from the seawater outlet (7). It
【００１８】上記構成のレーザー照射装置では、レーザ
ー発振器(8) から出たレーザービームは、図１中に破線
で示すように、スキャナ(9) でスキャンされ、窓(3) お
よびレーザー入光口(5) を経て球形のレーザー照射用通
水槽(1) に入り、その内面で反射され、反射ビームはさ
らに球形内面で反射される。このように反射を繰り返す
結果、レーザービームは減衰するまで球形内面で何回も
反射し、レーザー照射用通水槽(1) 内を流通する海水中
の水生生物へのレーザー照射が効果的になされる。In the laser irradiating device having the above structure, the laser beam emitted from the laser oscillator (8) is scanned by the scanner (9) as shown by a broken line in FIG. 1, and the window (3) and the laser light entrance port are scanned. After passing through (5), it enters a spherical laser irradiation water tank (1), is reflected by its inner surface, and the reflected beam is further reflected by the spherical inner surface. As a result of repeated reflections in this way, the laser beam is reflected multiple times on the spherical inner surface until it attenuates, effectively irradiating the aquatic organisms in the seawater flowing in the laser irradiation water tank (1). .
【００１９】[0019]
【発明の効果】この発明によるレーザー照射用通水槽は
球形をなすので、レーザー発振器から出たレーザービー
ムはレーザー入光口を経て球形のレーザー照射用通水槽
に入り、その内面で反射され、反射ビームはさらに球形
内面で反射される。このように反射を繰り返す結果、レ
ーザービームは減衰するまで球形内面で何回も反射す
る。したがって、レーザー照射用通水槽内を流通する海
水中の水生生物へのレーザー照射を効果的になし得るの
で、貝類などの水生動物、藻類などの水生植物および水
生微生物などの浮遊生活期幼生および付着後の幼生ない
し成体が、機器、配管および冷却水路に付着、成長およ
び繁殖するのを確実に防止することができる。Since the water tank for laser irradiation according to the present invention has a spherical shape, the laser beam emitted from the laser oscillator enters the spherical water tank for laser irradiation through the laser light entrance port, and is reflected and reflected on the inner surface thereof. The beam is further reflected on the spherical inner surface. As a result of this repeated reflection, the laser beam is reflected multiple times on the spherical inner surface until it is attenuated. Therefore, since it is possible to effectively irradiate aquatic organisms in seawater flowing in the laser irradiation water tank, aquatic animals such as shellfish, aquatic plants such as algae, and floating life-stage larvae and attachment of aquatic microorganisms and the like. It is possible to reliably prevent the subsequent larvae or adults from adhering to, growing in, and growing on the equipment, piping and cooling water channels.
【図１】実施例で用いたレーザー照射装置を示す垂直断
面図である。FIG. 1 is a vertical sectional view showing a laser irradiation apparatus used in an example.
【図２】従来のレーザー照射装置を示す垂直断面図であ
る。FIG. 2 is a vertical sectional view showing a conventional laser irradiation device.
(1) …レーザー照射用通水槽 (2) …ガラス板 (3) …窓 (4) …反射板 (5) …レーザー入光口 (6) …海水導入口 (7) …海水排出口 (8) …レーザー発振器 (9) …スキャナ (1)… Water tank for laser irradiation (2)… Glass plate (3)… Window (4)… Reflector (5)… Laser entrance (6)… Seawater inlet (7)… Seawater outlet (8) )… Laser oscillator (9)… Scanner
───────────────────────────────────────────────────── フロントページの続き (72)発明者 北村 雅裕 大阪市此花区西九条５丁目３番28号 日立 造船株式会社内 (72)発明者 真野 洋樹 大阪市此花区西九条５丁目３番28号 日立 造船株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Masahiro Kitamura 5-3-28 Nishikujo, Konohana-ku, Osaka City Hitachi Shipbuilding Co., Ltd. (72) Hiroki Mano 5-28-3, Nishikujo, Konohana-ku, Osaka Within Hitachi Shipbuilding Co., Ltd.
Claims (1)
射用通水槽。1. A water tank for laser irradiation, which has a spherical shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP874693A JPH06218367A (en) | 1993-01-22 | 1993-01-22 | Water passing vessel to be irradiated with laser beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP874693A JPH06218367A (en) | 1993-01-22 | 1993-01-22 | Water passing vessel to be irradiated with laser beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06218367A true JPH06218367A (en) | 1994-08-09 |
Family
ID=11701504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP874693A Withdrawn JPH06218367A (en) | 1993-01-22 | 1993-01-22 | Water passing vessel to be irradiated with laser beam |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06218367A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4854410A (en) * | 1987-02-20 | 1989-08-08 | Mazda Motor Corporation | Method of incorporating four-wheel steering system in vehicle and four-wheel steering system |
| US4880072A (en) * | 1987-02-06 | 1989-11-14 | Mazda Motor Corporation | Method of and apparatus for checking four-wheel steering characteristics of four-wheel-steered vehicle |
| WO1996037439A1 (en) * | 1995-05-26 | 1996-11-28 | Marcelino Fernandez Fernandez | Laser device for purifying contaminated waters |
| ES2097092A1 (en) * | 1992-07-01 | 1997-03-16 | Fernandez Marcelino Fernandez | Laser device for the purification of polluted water |
| WO2011126422A1 (en) * | 2010-04-06 | 2011-10-13 | Anders Lundqvist | Purification device and method for treating liquids with lasers |
| WO2014027402A1 (en) | 2012-08-14 | 2014-02-20 | 中国電力株式会社 | Method for stopping attachment-period larvae from swimming or crawling |
| US11134669B2 (en) | 2014-03-24 | 2021-10-05 | The Chugoku Electric Power Co., Inc. | Method for killing Pteriomorphia and barnacles using light irradiation |
| US11134670B2 (en) | 2014-12-08 | 2021-10-05 | The Chugoku Electric Power Co., Inc. | Methods of suppressing settlement of barnacles |
| US11134671B2 (en) | 2015-03-27 | 2021-10-05 | The Chugoku Electric Power Co., Inc. | Method for preventing settlement of sessile organisms |
| US11140893B2 (en) | 2014-03-24 | 2021-10-12 | The Chugoku Electric Power Co., Inc. | Method for stopping swimming or crawling of adhesion-stage larvae |
-
1993
- 1993-01-22 JP JP874693A patent/JPH06218367A/en not_active Withdrawn
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4880072A (en) * | 1987-02-06 | 1989-11-14 | Mazda Motor Corporation | Method of and apparatus for checking four-wheel steering characteristics of four-wheel-steered vehicle |
| US4854410A (en) * | 1987-02-20 | 1989-08-08 | Mazda Motor Corporation | Method of incorporating four-wheel steering system in vehicle and four-wheel steering system |
| ES2097092A1 (en) * | 1992-07-01 | 1997-03-16 | Fernandez Marcelino Fernandez | Laser device for the purification of polluted water |
| WO1996037439A1 (en) * | 1995-05-26 | 1996-11-28 | Marcelino Fernandez Fernandez | Laser device for purifying contaminated waters |
| WO2011126422A1 (en) * | 2010-04-06 | 2011-10-13 | Anders Lundqvist | Purification device and method for treating liquids with lasers |
| WO2014027402A1 (en) | 2012-08-14 | 2014-02-20 | 中国電力株式会社 | Method for stopping attachment-period larvae from swimming or crawling |
| US11134669B2 (en) | 2014-03-24 | 2021-10-05 | The Chugoku Electric Power Co., Inc. | Method for killing Pteriomorphia and barnacles using light irradiation |
| US11140893B2 (en) | 2014-03-24 | 2021-10-12 | The Chugoku Electric Power Co., Inc. | Method for stopping swimming or crawling of adhesion-stage larvae |
| US11134670B2 (en) | 2014-12-08 | 2021-10-05 | The Chugoku Electric Power Co., Inc. | Methods of suppressing settlement of barnacles |
| US11134671B2 (en) | 2015-03-27 | 2021-10-05 | The Chugoku Electric Power Co., Inc. | Method for preventing settlement of sessile organisms |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20000404 |