JP2006239601A - Ozone dissolving device - Google Patents

Ozone dissolving device Download PDF

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JP2006239601A
JP2006239601A JP2005059984A JP2005059984A JP2006239601A JP 2006239601 A JP2006239601 A JP 2006239601A JP 2005059984 A JP2005059984 A JP 2005059984A JP 2005059984 A JP2005059984 A JP 2005059984A JP 2006239601 A JP2006239601 A JP 2006239601A
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ozone
pipe
water distribution
injection pipe
distribution pipe
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Masabumi Matsumoto
正文 松本
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Mitsui Engineering and Shipbuilding Co Ltd
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Mitsui Engineering and Shipbuilding Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide the ozone dissolving device which is mounted in a ballast tank and constituted so as to uniformly dissolve ozone in seawater with high efficiency. <P>SOLUTION: The ozone dissolving device is constituted so that an ozone injection pipe 2 is provided to a water distribution pipe 1 for supplying seawater W to the ballast tank and ozone S ejected from the ozone injection pipe 2 is dissolved in the seawater W in the water distribution pipe 1. A screw propellar 5 for forming a vortex stream is provided on the upstream side of the ozone injection pipe 2 and a turbulent flow forming means 10a is provided on the downstream side of the ozone injection pipe 2. The turbulent flow forming means 10a is formed of a plurality of plates or rod-like bodies 8a-8f arranged on the spiral virtual line 7 drawn on the inner wall surface of the water distribution pipe 1 at a predetermined interval. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、オゾン溶解装置、更に詳しくは、バラストタンクに搭載する海水中の微生物、例えば、動物プランクトンや植物プランクトンなどの微生物、あるいは、バクテリアなどの細菌を殺滅する殺滅用のオゾンを、バラストタンクに供給中の海水中に高効率で溶解するオゾン溶解装置に関するものである。   The present invention relates to an ozone-dissolving device, more specifically, microorganisms in seawater mounted on a ballast tank, for example, microorganisms such as zooplankton and phytoplankton, or ozone for killing bacteria such as bacteria, The present invention relates to an ozone dissolving device that dissolves in seawater being supplied to a ballast tank with high efficiency.

従来、タンカー、バルク運搬船、鉱石運搬船などの船舶は、貨物を積まない空船の時に、船体の喫水を確保する必要があるため、貨物の荷揚げ時には、バラストタンク内に海水を注入し、貨物の荷積み時には、逆に、バラストタンク内の海水を船外に排出することが行われている。   Conventionally, since ships such as tankers, bulk carriers, ore carriers have to secure drafts of the hull when they are empty ships that do not carry cargo, seawater is injected into the ballast tank when cargo is unloaded. Conversely, when loading, the seawater in the ballast tank is discharged out of the ship.

しかしながら、海水中には、微生物、例えば、動物プランクトンや植物プランクトンなどの微生物、あるいは、バクテリアなどの細菌が含まれているので、貨物の荷揚げ岸壁（輸入国）に接岸してバラストタンク内に搭載した海水を、貨物の荷積み岸壁（輸出国）に接岸した状態で船外に排出すると、貨物の荷揚げ地区（輸入国）の海水に含まれていた微生物によって貨物の荷積み地区（輸出国）の海水が汚染されることになる。   However, since seawater contains microorganisms, for example, microorganisms such as zooplankton and phytoplankton, or bacteria such as bacteria, they are loaded in the ballast tank while coming in contact with the cargo unloading quay (importing country). When the discharged seawater is discharged outside the ship while berthing at the cargo loading quay (exporting country), the cargo loading area (exporting country) is caused by microorganisms contained in the seawater of the cargo unloading area (importing country). The seawater will be polluted.

このような他の海域に生存する微生物による海水の汚染問題を解消するため、バラスト水を殺菌処理することにより、無害化する国際的な決議が取り決められた。これを受けてバラストタンク内のバラスト水を無害処理化する発明が多数出願されている。   In order to solve the problem of contamination of seawater by microorganisms living in such other sea areas, an international resolution was decided to make the ballast water harmless by sterilizing it. In response to this, many inventions have been filed for detoxifying the ballast water in the ballast tank.

バラストタンクから排出中のバラスト水を殺菌する方法としては、例えば、バラストタンク内のバラスト水を船外に排出するバラスト水配管にオゾン注入管及び蒸気注入管を設け、バラスト水配管内を流れるバラスト水に対して、オゾン注入管からオゾンを注入し、かつ、オゾン注入と同時又は相前後して蒸気注入管から蒸気を注入して、オゾンと蒸気との相乗効果により、大きな殺菌浄化を目指した発明が提案されている（例えば、特許文献１参照。）。
特開２００４−１６０４３７号公報 As a method of sterilizing the ballast water being discharged from the ballast tank, for example, an ozone injection pipe and a steam injection pipe are provided in the ballast water pipe for discharging the ballast water in the ballast tank to the outside of the ship, and the ballast water flowing in the ballast water pipe is used. Injecting ozone into the water from the ozone injection pipe, and injecting steam from the steam injection pipe at the same time as or around the ozone injection, and aimed at a large sterilization purification by the synergistic effect of ozone and steam An invention has been proposed (see, for example, Patent Document 1).
JP 2004-160437 A

しかしながら、上記のように、細管状のオゾン注入管を、バラスト水配管の側面から中心に向けて差し込み、前記オゾン注入管からバラスト水配管内にオゾンを注入するだけの簡便な方法では、オゾンをバラスト水配管内を流れる海水に均一に溶解させることができない。   However, as described above, in a simple method of inserting a narrow tubular ozone injection pipe from the side surface of the ballast water pipe toward the center and injecting ozone from the ozone injection pipe into the ballast water pipe, ozone is not injected. It cannot be uniformly dissolved in seawater flowing through the ballast water pipe.

他方、液体中に気体を均一に混合させる方法や装置は、従来からいろいろ知られているが、高効率、高性能を有するものは、必ずしも多くない。   On the other hand, various methods and apparatuses for uniformly mixing a gas in a liquid have been known in the past, but there are not necessarily many that have high efficiency and high performance.

例えば、３０万トンのタンカーの場合は、約１０万トンのバラスト水を必要とするが、約１０万トンの海水を２４時間以内にバラストタンク内に注入しようとすると、約３０００トン／分の割合で海水を効率的に殺菌処理する必要がある。   For example, a 300,000-ton tanker requires about 100,000 tons of ballast water, but if about 100,000 tons of seawater is poured into a ballast tank within 24 hours, about 3000 tons / minute It is necessary to sterilize seawater efficiently at a rate.

本発明は、このような知見や要望に基づいてなされたものであり、その目的とするところは、バラストタンクに搭載する海水中にオゾンを高効率で均一に溶解させるオゾン溶解装置を提供することにある。   The present invention has been made on the basis of such knowledge and demands, and the object of the present invention is to provide an ozone dissolving apparatus that dissolves ozone uniformly and efficiently in seawater mounted on a ballast tank. It is in.

上記の課題を解決するため、本発明は、次のように構成されている。   In order to solve the above problems, the present invention is configured as follows.

請求項１に記載の発明に係るオゾン溶解装置は、海水をバラストタンクに供給する配水管にオゾン注入管を設け、該オゾン注入管から噴出したオゾンを前記配水管内の海水に溶解させるオゾン溶解装置において、前記オゾン注入管の上流側に渦流発生用スクリュープロペラを設け、かつ、前記オゾン注入管の下流側に乱流発生手段を設け、該乱流発生手段を、前記配水管の内壁面に描いた螺旋状の仮想ライン上に所定の間隔で配置した複数の板又は棒状体により形成したことを特徴とするオゾン溶解装置。   The ozone dissolution apparatus according to the invention of claim 1 is provided with an ozone injection pipe in a water distribution pipe that supplies seawater to a ballast tank, and the ozone injection apparatus that dissolves ozone ejected from the ozone injection pipe in sea water in the water distribution pipe A vortex generating screw propeller is provided upstream of the ozone injection pipe, and turbulent flow generating means is provided downstream of the ozone injection pipe, and the turbulent flow generating means is drawn on the inner wall surface of the water distribution pipe. An ozone dissolving apparatus, comprising: a plurality of plates or rods arranged at predetermined intervals on a spiral virtual line.

請求項２に記載の発明に係るオゾン溶解装置は、前記板又は棒状体を、前記配水管の内壁面から配水管の軸線に向けて直立させたことを特徴とする請求項１記載のオゾン溶解装置である。   The ozone dissolution apparatus according to the invention described in claim 2 is characterized in that the plate or rod-like body is erected from the inner wall surface of the water distribution pipe toward the axis of the water distribution pipe. Device.

請求項３に記載の発明に係るオゾン溶解装置は、前記板又は棒状体の横断面を楕円形状に形成し、かつ、該楕円形の長軸方向が配水管の円周方向を向くように、前記板又は棒状体を前記配水管の内壁面に装着することを特徴とする請求項２記載のオゾン溶解装置である。   The ozone dissolution apparatus according to the invention described in claim 3 is such that the cross section of the plate or rod-like body is formed in an elliptical shape, and the major axis direction of the elliptical shape faces the circumferential direction of the water pipe. The ozone dissolution apparatus according to claim 2, wherein the plate or rod-like body is attached to an inner wall surface of the water pipe.

請求項４に記載の発明に係るオゾン溶解装置は、海水をバラストタンクに供給する配水管にオゾン注入管を設け、該オゾン注入管から噴出したオゾンを前記配水管内の海水に溶解させるオゾン溶解装置において、前記オゾン注入管の上流側に渦流発生用スクリュープロペラを設け、かつ、前記オゾン注入管の下流側に乱流発生手段を設け、該乱流発生手段を、前記配水管の軸線の方向に所定の間隔で設置した複数の板又は棒状体により形成し、かつ、前記配水管をその軸線方向から見た場合、前記板又は棒状体どうしが互いに交差するように、前記配水管の円周方向に位相をずらして配置することを特徴とする請求項１記載のオゾン溶解装置である。   An ozone dissolving apparatus according to the invention of claim 4 is provided with an ozone injection pipe in a water distribution pipe that supplies seawater to a ballast tank, and ozone dissolved from the ozone injection pipe is dissolved in sea water in the water distribution pipe. A vortex generating screw propeller is provided on the upstream side of the ozone injection pipe, and turbulent flow generating means is provided on the downstream side of the ozone injection pipe, and the turbulent flow generating means is arranged in the direction of the axis of the water distribution pipe. The circumferential direction of the water distribution pipe is formed by a plurality of plates or rod-like bodies installed at a predetermined interval, and when the water pipe is viewed from the axial direction, the plates or rod-like bodies intersect each other. The ozone dissolving apparatus according to claim 1, wherein the ozone dissolving apparatus is arranged with a phase shift.

請求項５に記載の発明に係るオゾン溶解装置は、前記板又は棒状体の後端に抵抗低減用の凹凸を設けたことを特徴とする請求項４記載のオゾン溶解装置である。   The ozone dissolving apparatus according to claim 5 is the ozone dissolving apparatus according to claim 4, wherein unevenness for reducing resistance is provided at a rear end of the plate or rod-like body.

上記のように、請求項１に記載の発明は、海水をバラストタンクに供給する配水管にオゾン注入管を設け、該オゾン注入管から噴出したオゾンを前記配水管内の海水に溶解させるオゾン溶解装置において、前記オゾン注入管の上流側に渦流発生用スクリュープロペラを設け、かつ、前記オゾン注入管の下流側に乱流発生手段を設け、該乱流発生手段を、前記配水管の内壁面に描いた螺旋状の仮想ライン上に所定の間隔で配置した複数の板又は棒状体により形成したので、スクリュープロペラが、高速、例えば、１０００〜１００００ｒｐｍで回転すると、スクリュープロペの後方にらせん状の渦流が発生する。   As described above, the invention according to claim 1 is an ozone dissolving apparatus in which an ozone injection pipe is provided in a water distribution pipe that supplies seawater to a ballast tank, and ozone ejected from the ozone injection pipe is dissolved in seawater in the water distribution pipe. A vortex generating screw propeller is provided upstream of the ozone injection pipe, and turbulent flow generating means is provided downstream of the ozone injection pipe, and the turbulent flow generating means is drawn on the inner wall surface of the water distribution pipe. When the screw propeller is rotated at a high speed, for example, 1000 to 10000 rpm, a spiral vortex flow is formed behind the screw propeller. appear.

そして、スクリュープロペラの後方に位置しているオゾン注入管のノズルからオゾンを噴出すると、オゾンは、細かな気泡となって上述したらせん状の渦流に巻き込まれる。   And if ozone is ejected from the nozzle of the ozone injection pipe located behind the screw propeller, the ozone becomes fine bubbles and is entrained in the spiral vortex described above.

オゾンが混入したらせん状の渦流は、オゾン注入管の後方に位置している乱流発生手段、すなわち、配水管の内壁面に描いた螺旋状の仮想ライン上に所定の間隔で配置した複数の板又は棒状体に衝突して激しく攪拌され、小さな気泡状のオゾンがより微細な気泡となって海水中に均一に溶解する。その結果、海水中に含まれているプランクトンやバクテリアなどの微生物が海水内に均一に溶解したオゾンによって殺滅することができる。   When ozone is mixed, spiral vortex flows are turbulent flow generating means located behind the ozone injection pipe, that is, a plurality of spiral vortices arranged at predetermined intervals on a spiral virtual line drawn on the inner wall surface of the water distribution pipe. It collides with a plate or rod-like body and is vigorously stirred, so that small bubble-like ozone becomes finer bubbles and dissolves uniformly in seawater. As a result, microorganisms such as plankton and bacteria contained in the seawater can be killed by ozone that is uniformly dissolved in the seawater.

請求項２に記載の発明に係るオゾン溶解装置は、前記板又は棒状体を、前記配水管の内壁面から配水管の軸線に向けて直立させたので、より効果的に乱流を発生させることができる。   In the ozone dissolution apparatus according to the second aspect of the present invention, the plate or the rod-like body is erected from the inner wall surface of the water distribution pipe toward the axis of the water distribution pipe, so that the turbulent flow is generated more effectively. Can do.

請求項３に記載の発明に係るオゾン溶解装置は、前記板又は棒状体の横断面を楕円形状に形成し、かつ、該楕円形の長軸方向が配水管の円周方向を向くように、前記板又は棒状体を前記配水管の内壁面に装着したので、らせん状に旋回する渦流Ａを剪断する作用が促進することができる。   The ozone dissolution apparatus according to the invention described in claim 3 is such that the cross section of the plate or rod-like body is formed in an elliptical shape, and the major axis direction of the elliptical shape faces the circumferential direction of the water pipe. Since the plate or rod-like body is mounted on the inner wall surface of the water pipe, the action of shearing the spiral swirling vortex A can be promoted.

請求項４に記載の発明に係るオゾン溶解装置は、海水をバラストタンクに供給する配水管にオゾン注入管を設け、該オゾン注入管から噴出したオゾンを前記配水管内の海水に溶解させるオゾン溶解装置において、前記オゾン注入管の上流側に渦流発生用スクリュープロペラを設け、かつ、前記オゾン注入管の下流側に乱流発生手段を設け、該乱流発生手段を、前記配水管の軸線の方向に所定の間隔で設置した複数の板又は棒状体により形成し、かつ、前記配水管をその軸線方向から見た場合、前記板又は棒状体どうしが互いに交差するように、前記配水管の円周方向に位相をずらして配置したので、請求項１に記載の発明と同等か、それ以上の効果を得ることができる。   An ozone dissolving apparatus according to the invention of claim 4 is provided with an ozone injection pipe in a water distribution pipe that supplies seawater to a ballast tank, and ozone dissolved from the ozone injection pipe is dissolved in sea water in the water distribution pipe. A vortex generating screw propeller is provided on the upstream side of the ozone injection pipe, and turbulent flow generating means is provided on the downstream side of the ozone injection pipe, and the turbulent flow generating means is arranged in the direction of the axis of the water distribution pipe. The circumferential direction of the water distribution pipe is formed by a plurality of plates or rod-like bodies installed at a predetermined interval, and when the water pipe is viewed from the axial direction, the plates or rod-like bodies intersect each other. Since the phase is shifted, the effect equivalent to or more than that of the invention of claim 1 can be obtained.

請求項５に記載の発明に係るオゾン溶解装置は、前記板又は棒状体の後端に抵抗低減用の凹凸を設けたので、板又は棒状体の摩擦抵抗を大幅、例えば、３２％程度、低減することができる。この結果、ポンプ動力を抑制することも期待することができる。   Since the ozone dissolution apparatus according to the invention described in claim 5 is provided with unevenness for reducing resistance at the rear end of the plate or rod-like body, the frictional resistance of the plate or rod-like body is greatly reduced, for example, by about 32%. can do. As a result, it can also be expected to suppress the pump power.

以下、本発明の実施の形態を図面を用いて説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図１は本発明に係るオゾン溶解装置の概略構成図、図２は図１のＸ−Ｘ’線断面図である。   FIG. 1 is a schematic configuration diagram of an ozone dissolving apparatus according to the present invention, and FIG. 2 is a cross-sectional view taken along line X-X ′ of FIG. 1.

図１において、符号１は、海水Ｗをバラストタンク（図示せず）に供給する配水管である。この配水管１は、オゾン注入管２を備え、Ｌ字型に屈曲した注入管先端部３に装着したノズル４から配水管１内の海水Ｗにオゾン（Ｏ3 ）Ｓを噴出するようになっている。 In FIG. 1, the code | symbol 1 is a water pipe which supplies seawater W to a ballast tank (not shown). This water distribution pipe 1 includes an ozone injection pipe 2, and ozone (O 3 ) S is ejected to seawater W in the water distribution pipe 1 from a nozzle 4 attached to an injection pipe distal end portion 3 bent in an L shape. ing.

このオゾン注入管２の上流側には、渦流発生用スクリュープロペラ５を設けている。このスクリュープロペラ５は、高速、例えば、３０００〜６０００ｒｐｍの高速で回転し、配水管１内を流れる海水Ｗに高速の渦流Ａを発生させるようになっている。   A vortex generating screw propeller 5 is provided upstream of the ozone injection pipe 2. The screw propeller 5 rotates at a high speed, for example, 3000 to 6000 rpm, and generates a high-speed vortex A in the seawater W flowing in the water distribution pipe 1.

このスクリュープロペラ５の駆動軸６は、Ｌ字型に屈曲した配水管１の管壁を貫通し、図示しないモーター又はエンジンによって回転するようになっている。   The drive shaft 6 of the screw propeller 5 passes through the pipe wall of the water distribution pipe 1 bent in an L shape and is rotated by a motor or an engine (not shown).

他方、上記オゾン注入管２の下流側には、乱流発生手段１０を設けている。この乱流発生手段１０には、複数の実施形態があるので、先ず、第１の乱流発生手段１０ａについて説明する。   On the other hand, a turbulent flow generation means 10 is provided on the downstream side of the ozone injection pipe 2. Since there are a plurality of embodiments of the turbulent flow generation means 10, first, the first turbulent flow generation means 10a will be described.

この第１の乱流発生手段１０ａは、図１に示すように、配水管１の内壁面に描いた螺旋状の仮想ライン７上に所定の間隔で配置した複数（この実施形態の場合は、６本）の板又は棒状体８ａ，８ｂ，８ｃ，８ｄ，８ｅ，８ｆにより形成している。   As shown in FIG. 1, the first turbulent flow generation means 10 a includes a plurality of (in the case of this embodiment, arranged at predetermined intervals on a spiral virtual line 7 drawn on the inner wall surface of the water distribution pipe 1. 6) plates or rods 8a, 8b, 8c, 8d, 8e, 8f.

ここで、隣接する二つの板又は棒状体８の軸線Ｏ方向の間隔Ｌは、配水管１の直径Ｄや海水Ｗの流速等と関係するが、１０〜５０（ｍｍ）、あるいは、２０〜３０（ｍｍ）の範囲が好ましい。この範囲を外れると、乱流が発生し難くなる。   Here, the interval L in the direction of the axis O between two adjacent plates or rods 8 is related to the diameter D of the water distribution pipe 1, the flow velocity of the seawater W, etc., but is 10 to 50 (mm), or 20 to 30. A range of (mm) is preferable. Outside this range, turbulence is unlikely to occur.

また、この板又は棒状体８ａ〜８ｆは、図１及び図２に示すように、配水管１の内壁面から配水管１の軸線Ｏに向けて直立している。   In addition, as shown in FIGS. 1 and 2, the plates or rod-like bodies 8 a to 8 f stand upright from the inner wall surface of the water distribution pipe 1 toward the axis O of the water distribution pipe 1.

更に、この板又は棒状体８ａ〜８ｆは、その横断面が、図３に示すように、楕円形状に形成されている。そして、この板又は棒状体８ａ〜８ｆは、楕円形の長軸１１の方向が配水管１の円周方向Ｅを向くように、配水管１の内壁面に装着されている。なお、符号１２は、楕円形の短軸を示している。   Furthermore, as shown in FIG. 3, the plates or rod-like bodies 8 a to 8 f are formed in an elliptical shape in cross section. And this board or rod-shaped body 8a-8f is mounted | worn with the inner wall surface of the water pipe 1 so that the direction of the elliptical long axis 11 may face the circumferential direction E of the water pipe 1. As shown in FIG. Reference numeral 12 denotes an elliptical short axis.

上記のように、板又は棒状体８ａ〜８ｆの横断面を楕円形状に形成することにより、らせん状に旋回する渦流Ａを剪断する作用が促進される。   As described above, the action of shearing the spiral swirling vortex A is promoted by forming the cross sections of the plates or rod-like bodies 8a to 8f into an elliptical shape.

次に、上記オゾン溶解装置の作用について説明する。   Next, the operation of the ozone dissolving apparatus will be described.

今、上記スクリュープロペラ５が、高速、例えば、３０００〜６０００ｒｐｍの高速で回転すると、図１に示すように、スクリュープロペラ５の後流側にらせん状の渦流Ａが発生する。   When the screw propeller 5 is rotated at a high speed, for example, 3000 to 6000 rpm, a spiral vortex A is generated on the downstream side of the screw propeller 5 as shown in FIG.

そして、スクリュープロペラ５の後方に位置しているオゾン注入管２のノズル４からオゾンＳを噴出すると、オゾンＳは、細かな気泡となって上述したらせん状の渦流Ａに巻き込まれる。   And if ozone S is ejected from the nozzle 4 of the ozone injection pipe 2 located behind the screw propeller 5, the ozone S becomes a fine bubble and is entrained in the spiral vortex A described above.

オゾンＳが混入したらせん状の渦流Ａは、オゾン注入管２の後方に位置している乱流発生手段１０ａ、すなわち、配水管１の内壁面に描いた螺旋状の仮想ライン７上に所定の間隔で配置した複数の板又は棒状体８ａ〜８ｆに衝突して激しく攪拌され、小さな気泡状のオゾンＳがより微細な気泡となって海水Ｗ中に均一に溶解される。   When the ozone S is mixed, the spiral vortex A flows on the turbulent flow generating means 10a located behind the ozone injection pipe 2, that is, on the spiral virtual line 7 drawn on the inner wall surface of the water distribution pipe 1. It collides with a plurality of plates or rods 8a to 8f arranged at intervals and is vigorously stirred, so that small bubble-like ozone S becomes finer bubbles and is uniformly dissolved in the seawater W.

従って、海水Ｗ中に含まれているプランクトンやバクテリアなどの微生物が海水Ｗ内に均一に溶解したオゾンＳによって殺滅される。   Therefore, microorganisms such as plankton and bacteria contained in the seawater W are killed by the ozone S uniformly dissolved in the seawater W.

乱流発生手段としては、既に説明した第１の乱流発生手段１０ａ以外にも幾つか考えられる。例えば、第２の乱流発生手段１０ｂとしては、図４及び図５のように、前記配水管１の軸線Ｏの方向に所定の間隔で設置した複数（この実施形態の場合は、３本）の板又は棒状体９ａ，９ｂ，９ｃにより形成する。この場合、前記配水管１を、その軸線Ｏの方向から見た場合、３本の板又は棒状体９ａ，９ｂ，９ｃどうしが互いに交差するように、前記配水管１の円周方向に位相を６０°ずつずらして配置する。   There are several possible turbulent flow generation means other than the first turbulent flow generation means 10a already described. For example, as the second turbulent flow generation means 10b, as shown in FIGS. 4 and 5, a plurality of (three in the case of this embodiment) installed at predetermined intervals in the direction of the axis O of the water distribution pipe 1 The plate or rod-like body 9a, 9b, 9c is used. In this case, when the water distribution pipe 1 is viewed from the direction of the axis O, the phase in the circumferential direction of the water distribution pipe 1 is such that the three plates or rods 9a, 9b, 9c intersect each other. Shift by 60 °.

上記の構成により、第２の乱流発生手段１０ｂの場合も、既に説明した第１の乱流発生手段１０ａと同等かそれ以上の効果を得ることができる。   With the above configuration, the second turbulent flow generation means 10b can obtain an effect equal to or greater than that of the first turbulent flow generation means 10a already described.

また、この板又は棒状体９ａ，９ｂ，９ｃの後端に抵抗低減用の凹凸１３、つまり、凹部１３ａと突部１３ｂを交互に設けることにより、板又は棒状体９ａ，９ｂ，９ｃの摩擦抵抗を大幅、例えば、３２％程度、低減することができる。この結果、ポンプ動力を抑制することも期待することができる。   In addition, by providing the resistance-reducing irregularities 13 at the rear ends of the plates or rod-like bodies 9a, 9b, 9c, that is, the recesses 13a and the protrusions 13b alternately, the friction resistance of the plates or rod-like bodies 9a, 9b, 9c. Can be significantly reduced, for example, by about 32%. As a result, it can also be expected to suppress the pump power.

ここで、隣接する二つの板又は棒状体９の軸線Ｏ方向の間隔Ｌは、配水管１の直径Ｄや海水Ｗの流速等と関係するが、１０〜５０（ｍｍ）、あるいは、２０〜３０（ｍｍ）の範囲が好ましい。この範囲を外れると、乱流が発生し難くなる。   Here, the distance L in the direction of the axis O between two adjacent plates or rods 9 is related to the diameter D of the water distribution pipe 1, the flow velocity of the seawater W, etc., but is 10 to 50 (mm) or 20 to 30. A range of (mm) is preferable. Outside this range, turbulence is unlikely to occur.

本発明に係るオゾン溶解装置の概略構成図である。It is a schematic block diagram of the ozone dissolution apparatus which concerns on this invention. 図１のＸ−Ｘ’線断面図である。FIG. 2 is a sectional view taken along line X-X ′ in FIG. 1. 板又は棒状体の横断面図である。It is a cross-sectional view of a plate or a rod-shaped body. 第２の乱流発生手段の正面図である。It is a front view of the 2nd turbulent flow generation means. 第２の乱流発生手段の側面図である。It is a side view of the 2nd turbulent flow generation means.

符号の説明Explanation of symbols

１ 配水管
２ オゾン注入管
５ 渦流発生用スクリュープロペラ
７ 螺旋状の仮想ライン
８ａ〜８ｆ 板又は棒状体
９ａ〜９ｃ 板又は棒状体
１０ａ，１０ｂ 乱流発生手段
Ｓ オゾン
Ｗ 海水
DESCRIPTION OF SYMBOLS 1 Water distribution pipe 2 Ozone injection pipe 5 Screw propeller for eddy current generation 7 Spiral virtual line 8a-8f Plate or rod 9a-9c Plate or rod 10a, 10b Turbulence generating means S Ozone W Seawater

Claims (5)

海水をバラストタンクに供給する配水管にオゾン注入管を設け、該オゾン注入管から噴出したオゾンを前記配水管内の海水に溶解させるオゾン溶解装置において、前記オゾン注入管の上流側に渦流発生用スクリュープロペラを設け、かつ、前記オゾン注入管の下流側に乱流発生手段を設け、該乱流発生手段を、前記配水管の内壁面に描いた螺旋状の仮想ライン上に所定の間隔で配置した複数の板又は棒状体により形成したことを特徴とするオゾン溶解装置。 In an ozone dissolving apparatus for providing an ozone injection pipe in a water distribution pipe for supplying seawater to a ballast tank and dissolving ozone ejected from the ozone injection pipe in seawater in the water distribution pipe, a screw for generating eddy currents upstream of the ozone injection pipe A propeller is provided, and turbulent flow generating means is provided downstream of the ozone injection pipe, and the turbulent flow generating means is arranged at predetermined intervals on a spiral virtual line drawn on the inner wall surface of the water distribution pipe. An ozone dissolving apparatus formed by a plurality of plates or rods. 前記板又は棒状体を、前記配水管の内壁面から配水管の軸線に向けて直立させたことを特徴とする請求項１記載のオゾン溶解装置。 The ozone dissolution apparatus according to claim 1, wherein the plate or rod-like body is erected from the inner wall surface of the water distribution pipe toward the axis of the water distribution pipe. 前記板又は棒状体の横断面を楕円形状に形成し、かつ、該楕円形の長軸方向が配水管の円周方向を向くように、前記板又は棒状体を前記配水管の内壁面に装着することを特徴とする請求項２記載のオゾン溶解装置。 Mount the plate or rod on the inner wall of the water pipe so that the cross section of the plate or rod is elliptical and the long axis of the ellipse faces the circumferential direction of the water pipe The ozone dissolution apparatus according to claim 2, wherein 海水をバラストタンクに供給する配水管にオゾン注入管を設け、該オゾン注入管から噴出したオゾンを前記配水管内の海水に溶解させるオゾン溶解装置において、前記オゾン注入管の上流側に渦流発生用スクリュープロペラを設け、かつ、前記オゾン注入管の下流側に乱流発生手段を設け、該乱流発生手段を、前記配水管の軸線の方向に所定の間隔で設置した複数の板又は棒状体により形成し、かつ、前記配水管をその軸線方向から見た場合、前記板又は棒状体どうしが互いに交差するように、前記配水管の円周方向に位相をずらして配置することを特徴とする請求項１記載のオゾン溶解装置。 In an ozone dissolving apparatus for providing an ozone injection pipe in a water distribution pipe for supplying seawater to a ballast tank and dissolving ozone ejected from the ozone injection pipe in seawater in the water distribution pipe, a screw for generating eddy currents upstream of the ozone injection pipe A propeller is provided, and a turbulent flow generating means is provided on the downstream side of the ozone injection pipe, and the turbulent flow generating means is formed by a plurality of plates or rods installed at predetermined intervals in the direction of the axis of the water distribution pipe. And when the said water pipe is seen from the axial direction, it arrange | positions so that the phase may be shifted in the circumferential direction of the said water pipe so that the said board or rod-shaped body may mutually cross | intersect. 1. The ozone dissolving apparatus according to 1. 前記板又は棒状体の後端に抵抗低減用の凹凸を設けたことを特徴とする請求項４記載のオゾン溶解装置。
5. The ozone dissolution apparatus according to claim 4, wherein unevenness for reducing resistance is provided at a rear end of the plate or rod-like body.
JP2005059984A 2005-03-04 2005-03-04 Ozone dissolving device Pending JP2006239601A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100804221B1 (en) 2006-12-26 2008-02-18 주식회사 부강테크 Waste water treatment method using turbulence reactor
JP2009125681A (en) * 2007-11-26 2009-06-11 Mitsui Eng & Shipbuild Co Ltd Ozone mixer
KR101608475B1 (en) * 2014-04-02 2016-04-04 주식회사 정원 apparatus for manufacturing hydrogen water of high density
KR102355078B1 (en) * 2021-11-17 2022-02-08 송하정 Polluted water treatment system using ozone and ultraviolet rays

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001009315A (en) * 1999-06-24 2001-01-16 Sanwa Marine Ltd Pulverizer for microbe in liquid
JP2001293474A (en) * 2000-04-12 2001-10-23 Nippon Mitsubishi Oil Corp Cleaning method of seawater and cleaning device for seawater
JP2003514648A (en) * 1999-11-15 2003-04-22 フォーリノーバ、アクティーゼルスカブ Method and apparatus for regulating undesirable organisms in water systems

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001009315A (en) * 1999-06-24 2001-01-16 Sanwa Marine Ltd Pulverizer for microbe in liquid
JP2003514648A (en) * 1999-11-15 2003-04-22 フォーリノーバ、アクティーゼルスカブ Method and apparatus for regulating undesirable organisms in water systems
JP2001293474A (en) * 2000-04-12 2001-10-23 Nippon Mitsubishi Oil Corp Cleaning method of seawater and cleaning device for seawater

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100804221B1 (en) 2006-12-26 2008-02-18 주식회사 부강테크 Waste water treatment method using turbulence reactor
JP2009125681A (en) * 2007-11-26 2009-06-11 Mitsui Eng & Shipbuild Co Ltd Ozone mixer
KR101608475B1 (en) * 2014-04-02 2016-04-04 주식회사 정원 apparatus for manufacturing hydrogen water of high density
KR102355078B1 (en) * 2021-11-17 2022-02-08 송하정 Polluted water treatment system using ozone and ultraviolet rays

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