JP2881570B2 - Aeration device - Google Patents
Aeration deviceInfo
- Publication number
- JP2881570B2 JP2881570B2 JP8035424A JP3542496A JP2881570B2 JP 2881570 B2 JP2881570 B2 JP 2881570B2 JP 8035424 A JP8035424 A JP 8035424A JP 3542496 A JP3542496 A JP 3542496A JP 2881570 B2 JP2881570 B2 JP 2881570B2
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- nozzle member
- water
- water passage
- stage
- 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 - Lifetime
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、曝気装置、特に各
種汚水を簡易な装置で、気泡を超微細化して水中での滞
留時間を長くし酸素の溶存効率を向上して効率的に曝気
するための曝気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 aeration apparatus, in particular, a simple apparatus for various kinds of sewage, in which air bubbles are made ultra-fine, the residence time in water is increased, and oxygen dissolution efficiency is improved to efficiently aerate. Related to an aeration device for use.
【０００２】[0002]
【従来の技術】養殖池、溜池、その他ゴルフ場内に設け
られた池、湖沼等の閉鎖された水域、或いは河川、港湾
の解放された水域等において、水域内に枯葉その他の有
機物質が流入滞留し、これが腐敗して悪臭が発生し、付
近住民に悪臭公害をもたらす原因ともなったり、さらに
は流入滞留した物質により水質が悪化し、アオコ等が発
生したりする。特に養殖池では病害を未然に防止し、養
魚の成長を促進し品質の向上を図る点で水質の浄化を図
ることが重要である。このため、養殖池では池上に撹拌
機を設置し、水面を撹拌して強制的に水と空気とを接触
させ、溶存酸素の向上を図るようにしている。或いは水
を空気中に噴射し、噴水にて空気との接触を強制的に行
うようにしている。2. Description of the Related Art Dead leaves and other organic substances flow into and out of water in closed ponds provided in aquaculture ponds, ponds, other golf courses, lakes and marshes, or in open water areas such as rivers and harbors. However, this rot causes odor, which may cause odor pollution to the local residents, and furthermore, the quality of water deteriorates due to the inflow and accumulation of substances, and water bombs and the like are generated. In particular, it is important to purify the water quality in aquaculture ponds in order to prevent disease, promote the growth of fish farming, and improve quality. For this reason, in aquaculture ponds, a stirrer is installed on the pond to stir the water surface to force water and air into contact with each other to improve dissolved oxygen. Alternatively, water is injected into the air, and the fountain is forced to contact the air.
【０００３】[0003]
【発明が解決しようとする課題】上記従来の水の撹拌曝
気機としては、一般的には水面または水中にスクリュー
を配置し、これを動力機にて強制的に回動させて撹拌
し、水中に大気を供給混合するようにしている。このた
めの水面部分における汚水の撹拌及び曝気は行えるが、
水面よりある程度以下の層における水は撹拌曝気されに
くく、また水中もしくは水が侵入する箇所に機械的駆動
部分を有しているので、水または水中に含む不純物によ
り駆動部分が磨耗又は故障しやすく、定期的に点検保守
をする必要がある。また、水中に取り入れた空気を破砕
して気泡とする場合、この空気の気泡を微細化すればす
るほどその溶存性が向上することが知られている。しか
しスクリューの回動にて水を強制的に撹拌する方法に於
いては、気泡の微細化にも限度があると共に、大きな動
力を要するという問題点があった。本発明は、上記従来
の曝気装置の有する問題点を解決し、小型で、水中での
機械的駆動部をなくし、ベンチュリー効果にて水中域に
発生する負圧を利用して水中に吸入する気体を負圧及び
水流圧を利用して可及的に微小化し、汚水をはじめとし
て畜類の***物等の粘性の高い汚物を含む汚水をも効率
的に曝気可能とした曝気装置を提供することを目的とす
る。As the above-mentioned conventional water stirring and aerator, a screw is generally arranged on the surface of the water or in the water, and the screw is forcibly rotated by a power machine to stir the water. The atmosphere is supplied and mixed. Stirring and aeration of sewage on the water surface for this purpose can be performed,
Water in the layer below the water surface to some extent is less likely to be agitated and aerated, and has a mechanical drive part in the water or where water enters, so the drive part is liable to wear or break down due to water or impurities contained in the water, Periodic inspection and maintenance is required. It is also known that when air taken into water is crushed to form air bubbles, the dissolving property is improved as the air bubbles are made finer. However, in the method of forcibly stirring water by turning the screw, there is a problem that there is a limit to fineness of bubbles and a large power is required. The present invention solves the problems of the above-described conventional aeration apparatus, is small, eliminates a mechanical drive unit in the water, and uses a negative pressure generated in the underwater area by the Venturi effect to inhale gas into the water. Using a negative pressure and a water flow pressure as much as possible to provide an aeration apparatus that can efficiently aerate even wastewater including highly viscous waste such as wastewater and livestock excrement. Aim.
【０００４】[0004]
【課題を解決するための手段】上記目的を達成するた
め、本発明の曝気装置は、加圧給水管Ｐ１を接続した吸
い込みゾーンＳ１を形成する第１段ノズル部材１に、１
段もしくは複数段よりなる気泡熟成ゾーンＳ２のノズル
部材２，３と，安定整流ゾーンＳ３となる噴出管４を同
一軸心上に配設し、かつ互いに連結固定して構成した曝
気装置において、各段ノズル部材接合位置に吸気管より
吸気するリングスリット状の各段ノズル６，７，８を夫
々形成し、かつ第１ノズル６より上流側位置にノズル孔
１２を穿設すると共に、各段ノズル位置において各段ノ
ズル部材の通水路径を順次経段毎に太径で、かつその異
径比を経段毎に小となる異径段差を形成したことを特徴
とする。In order to achieve the above object, the aeration apparatus of the present invention includes a first stage nozzle member 1 forming a suction zone S1 connected to a pressurized water supply pipe P1.
A nozzle member 2 of bubble aging zone S2, consisting of stages or multiple stages, arranged a jet pipe 4 on the same axis as the stable rectification zone S3, and the aeration apparatus constituted by connecting fixed to each other, Each of the nozzles 6, 7 and 8 in the form of a ring slit for sucking air from the suction pipe is formed at each nozzle member joining position, and a nozzle hole 12 is formed at a position upstream of the first nozzle 6 and each nozzle is formed. At the nozzle position, the diameter of the water passage of each stage nozzle member is sequentially formed to have a large diameter at each stage, and a different-diameter step having a small diameter ratio at each stage is formed.
【０００５】上記の構成からなる本発明の曝気装置は、
加圧給水管を接続する筒状の第１段ノズル部材及び第２
段ノズル部材、第３段ノズル部材を同一軸心上に配設
し、かつ互いに連結固定して構成し、かつ各段ノズル部
材接合位置に吸気管より吸気するリングスリーブ状の各
段ノズルを夫々形成し、さらに各段ノズル部材の接合位
置でリングスリーブ状各段ノズル位置において通水路径
を順次経段毎に太径で、その異径比を経段毎に小となる
よう異径段差を形成しているので、細い通水路から太い
通水路へ圧力水が通水するときこの通水路径の段部にて
負圧が発生して吸気管から空気等の気体を吸引し易く、
この吸引空気を太い径の通水路へ吐出される高圧水の圧
力にて破砕され、これが少なくとも２段以上繰り返され
るので、吸引する空気はミクロン単位まで極めて微小化
されかつ吐出水と混合撹拌され、所定水深の汚水中に高
圧水と共に吐出されるため、深い水深でも曝気でき、ま
た空気中の酸素又は気体の溶存率が向上し、動力を少な
くして曝気効率が従来に比べ飛躍的に向上するものとな
り、さらに水中での駆動部がなく保守点検が容易とな
る。[0005] The aeration apparatus of the present invention having the above-described structure is as follows.
A cylindrical first stage nozzle member for connecting a pressurized water supply pipe and a second stage nozzle member;
The stage nozzle member and the third stage nozzle member are arranged on the same axis, are connected and fixed to each other, and each of the ring sleeve-shaped stage nozzles for suctioning from the intake pipe to each stage nozzle member joining position is provided. In addition, at the joint position of each stage nozzle member, the diameter of the water passage is gradually increased at each stage at the position of the ring sleeve at each stage nozzle, and the different diameter step is set so that the different diameter ratio becomes smaller at each stage. Because it is formed, when pressure water flows from a thin water channel to a thick water channel, a negative pressure is generated at the step portion of this water channel diameter and it is easy to suck gas such as air from the intake pipe,
This suction air is crushed by the pressure of the high-pressure water discharged into the water passage having a large diameter, and this is repeated at least two or more stages. Thus, the suction air is extremely miniaturized to the micron unit and mixed and stirred with the discharge water, Since it is discharged together with high-pressure water into sewage at a predetermined depth, it can be aerated even at deep water depths, and the dissolved rate of oxygen or gas in the air is improved. And there is no drive part in water, and maintenance and inspection are easy.
【０００６】さらに、本発明の曝気装置は、吸気管Ｐ２
を接続するノズル部材１０を一端に接合した外筒内奥部
に気泡熱成ゾーンＳ２となる通水路５０１を連通し、こ
のノズル部材１０の通水路１１には基端側の小径部１１
ａと、出口側の大径部１１ｂとを、この内周面にて段差
を形成するようにして構成し、さらにノズル部材１０の
出口側と外筒５０の奥端底面とによりリングスリット状
のノズル６０を形成すると共に、ノズル部材１０内の段
差位置と、入口側にそれぞれノズル孔１２、１７を通水
路内に開口するように穿孔し、外筒５０の後端に所要長
の安定整流ゾーンＳ３となる噴出管４０を接合して構成
することを特徴とする。[0006] Further, the aeration apparatus of the present invention comprises an intake pipe P2
A water passage 501 serving as a bubble heat generation zone S2 is communicated with the inner part of the outer cylinder having a nozzle member 10 connected to one end thereof, and a small diameter portion 11 on the base end side is connected to the water passage 11 of the nozzle member 10.
a and the large-diameter portion 11b on the outlet side are formed so as to form a step on this inner peripheral surface, and a ring-slit shape is formed by the outlet side of the nozzle member 10 and the bottom end bottom surface of the outer cylinder 50. A nozzle 60 is formed, and a hole is formed in the nozzle member 10 at a stepped position and at the inlet side so that the nozzle holes 12 and 17 are respectively opened in the water passage. It is characterized in that the ejection pipe 40 serving as S3 is joined.
【０００７】上記の構成からなる本発明の曝気装置は、
構成が簡単で安価となり、特に小容量の曝気用に適して
いる。[0007] The aeration apparatus of the present invention having the above-described structure includes:
The structure is simple and inexpensive, and is particularly suitable for small volume aeration.
【０００８】[0008]
【発明の実施の形態】以下、本発明の曝気装置の実施の
形態を図面に基づいて説明する。本発明の曝気装置Ａ
は、池、湖沼等の閉鎖された水域内、或いは河川、港湾
等の解放水域内、又は汚水貯留槽等の水中所定位置に配
設するもので、この曝気装置Ａにはポンプ又は水中ポン
プ（図示せず）から所要の圧力水を供給する加圧給水管
Ｐ１と、大気から自吸または加圧空気或いは酸素、その
他の気体を吸気する吸気管Ｐ２とが接続される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the aeration apparatus of the present invention will be described below with reference to the drawings. Aeration device A of the present invention
Are disposed in closed water areas such as ponds and lakes, in open water areas such as rivers and harbors, or at predetermined positions in water such as sewage storage tanks. A pressurized water supply pipe P1 that supplies required pressure water from a not-shown) and an intake pipe P2 that self-primes or pressurizes air, oxygen, or other gas from the atmosphere are connected.
【０００９】そしてこの曝気装置Ａは図１に詳示するよ
うに加圧給水管Ｐ１が端部に接続されて引き込みゾーン
Ｓ１と、引き込みゾーンにて汚水又は水中に吸気された
気泡が混合され、かつこの気泡を微細化してより水と確
実に混合されるようにした気泡熟成ゾーンＳ２と、混合
水を整流して水域内に吐出する安定整流ゾーンＳ３とを
同一軸心上に配設して構成される。即ち引き込みゾーン
Ｓ１の筒状をした第１ノズル部材１の端部に、気泡の熟
成ゾーンとなる一段又は二段以上のノズル部材、例えば
図示のように第２ノズル部材２、第３ノズル部材３を同
一軸心上に配列配置し、互いに連結固定し、この第３ノ
ズル部材３の先端に他のノズル部材と同様に同一軸心上
に配設して安定整流ゾーンとなる筒状の吐出管４を一体
に結合し、各ノズル部材の結合位置にそれぞれ細かいリ
ングスリット状のノズル６、７、８を形成して構成され
る。In this aeration apparatus A, as shown in detail in FIG. 1, a pressurized water supply pipe P1 is connected to an end, and a suction zone S1 is mixed with sewage or air sucked into water in the suction zone. In addition, a bubble aging zone S2 in which the bubbles are miniaturized so as to be more surely mixed with water, and a stable rectification zone S3 in which mixed water is rectified and discharged into a water area are arranged on the same axis. Be composed. That is, at the end of the cylindrical first nozzle member 1 of the drawing zone S1, one or more stages of nozzle members serving as a bubble aging zone, for example, the second nozzle member 2 and the third nozzle member 3 as shown in the drawing. Are arranged on the same axis, are connected and fixed to each other, and are disposed on the same axis as the other nozzle members at the tip of the third nozzle member 3 so as to form a stable rectification zone. 4 are integrally connected, and fine ring slit-shaped nozzles 6, 7, 8 are formed at the connection positions of the respective nozzle members.
【００１０】引き込みゾーンの第１ノズル部材１は、図
１に示すように所要の内径とＬ１＋Ｌ２の長さを備えた
筒形で、基端側に加圧給水管Ｐ１の先端を接合し、かつ
加圧給水管Ｐ１からの加圧水が加圧給水管Ｐ１の内径よ
り細い第１ノズル部材１の通水路１１内へスムースに導
かれるように通水路１１の基端部をラッパ状、ロート状
に形成すると共に、この通水路１１は基端側の小径部１
１ａと、先端側即ち出口側の大径部１１ｂとより、そし
てこの内周面にて段差を形成するようにして構成し、さ
らに第１ノズル部材１の出口側外周形を円錐形の先端円
錐面１４として、第２ノズル部材２の基端側端面とによ
りリングスリット状のノズル６を形成する。As shown in FIG. 1, the first nozzle member 1 in the drawing zone has a cylindrical shape having a required inner diameter and a length of L1 + L2, and a distal end of a pressurized water supply pipe P1 is joined to a base end thereof. The base end of the water passage 11 is formed in a trumpet or funnel shape so that the pressurized water from the pressurized water supply pipe P1 is smoothly guided into the water passage 11 of the first nozzle member 1 smaller than the inner diameter of the pressurized water supply pipe P1. At the same time, the water passage 11 is formed in the small diameter portion 1 on the base end side.
1a and a large-diameter portion 11b on the distal end side, that is, on the outlet side, and a step is formed on the inner peripheral surface. Further, the outer peripheral shape of the first nozzle member 1 on the outlet side is a conical tip cone. As the surface 14, a ring slit-shaped nozzle 6 is formed by the base end surface of the second nozzle member 2.
【００１１】また、第１ノズル部材１内の段差位置に、
即ち通水路大径部１１ｂの段差位置に望ましくは小径部
１１ａに可及的に近接して１又は内周に沿って２以上の
ノズル孔１２を通水路内に開口するように穿孔して通水
路１１内流水に吸気管Ｐ２より吸気するようにする。こ
のノズル孔１２は第１ノズル部材１の外周部と第２ノズ
ル部材２の基端側内周面との間に形成したリング状の吸
気溝１３と導通していると共に、通水路１１の長さＬ１
を有する小径部１１ａの内径ｇは、長さＬ２を有する大
径部１１ｂの内径ａより予め定めた差を有するようにし
て小径となるように定められる。即ち、第１ノズル部材
１の小径部１１ａの長さＬ１と内径ｇとの関係は次式の
範囲内にて定められる。Further, at the step position in the first nozzle member 1,
That is, two or more nozzle holes 12 are desirably drilled so as to open into the water passage along one or more inner circumferences, preferably as close as possible to the small diameter portion 11a at the step position of the water passage large diameter portion 11b. The water flowing in the water channel 11 is taken in from the intake pipe P2. The nozzle hole 12 is electrically connected to a ring-shaped intake groove 13 formed between the outer peripheral portion of the first nozzle member 1 and the inner peripheral surface on the base end side of the second nozzle member 2. L1
Is determined so as to have a predetermined difference from the inner diameter a of the large diameter portion 11b having the length L2 so as to have a small diameter. That is, the relationship between the length L1 of the small diameter portion 11a of the first nozzle member 1 and the inner diameter g is determined within the range of the following expression.
【００１２】[0012]
【式１】 これは小径部１１ａの長さＬ１が短いと内周面にそった
水流面が乱流になって内周面から剥離するので、この乱
流が生じないようにそして剥離しないよう直線流とする
ために所要の長さが必要であり、前記式にて表される長
さが適しており、また反対に長すぎる時には製作上不具
合となる。(Equation 1) This is because if the length L1 of the small diameter portion 11a is short, the water flow surface along the inner circumferential surface becomes turbulent and separates from the inner circumferential surface. Therefore, the required length is necessary, and the length represented by the above formula is suitable. On the contrary, if the length is too long, there is a problem in production.
【００１３】大径部の内周面で乱流が生じると水流中に
吸引された気泡が乱れると共に、大径部内で発生する負
圧が低くなって空気の吸引力が低下するため、この大径
部での乱流を防ぐ必要がある。従って上述のように通水
路内径の段差、及び大径部の長さを上述の範囲内とする
ことにより大径部内での水流に乱流発生を防止し、これ
により内周面１１ｂよりの水流剥離を防ぐものである。If a turbulent flow occurs on the inner peripheral surface of the large diameter portion, the air bubbles sucked into the water flow are disturbed, and the negative pressure generated in the large diameter portion is reduced to lower the air suction force. It is necessary to prevent turbulence at the diameter. Therefore, as described above, by setting the step of the inner diameter of the water passage and the length of the large-diameter portion within the above-mentioned ranges, turbulence is prevented from being generated in the water flow in the large-diameter portion. This is to prevent peeling.
【００１４】また、気泡熟成ゾーンＳ２を構成する第２
ノズル部材２は、中央に通水路２１を備え混気整流とな
るに必要な長さＬ３を有する筒状とし、この第２ノズル
部材２は、その基端側内周面に内奥底面をテーパ形とし
た接合孔を形成し、この接合孔の内周面に雌ねじ２６を
刻設しこれに第１ノズル部材の外周に形成したねじ１６
を螺合して第１ノズル部材１と第２ノズル部材２とを同
一軸心上に接合する共に、このねじ１６，２６のねじ込
み量によって第１ノズル部材１の先端円錐面１４と第２
ノズル部材２のテーパ形接合孔の底面２２間にて形成さ
れるリングスリット状の第１段ノズル６の幅（スリット
幅）を定める。[0014] The second cell constituting the bubble aging zone S2 is also provided.
The nozzle member 2 has a water passage 21 in the center and has a cylindrical shape having a length L3 necessary for air-flow rectification. The second nozzle member 2 has a tapered inner bottom surface at the base inner peripheral surface. A female screw 26 is engraved on the inner peripheral surface of the joint hole, and a screw 16 formed on the outer periphery of the first nozzle member is formed on the female screw 26.
And the first nozzle member 1 and the second nozzle member 2 are joined on the same axis, and the tip conical surface 14 of the first nozzle member 1 and the second
The width (slit width) of the ring-slit first stage nozzle 6 formed between the bottom surfaces 22 of the tapered joining holes of the nozzle member 2 is determined.
【００１５】さらに、この第２ノズル部材２にはテーパ
形接合孔の底面外周位置に空気供給溝２３を形成し、こ
の空気供給溝２３を前記リング状の第１段ノズル６へ空
気を供給すると共に、第１ノズル部材１に形成した空気
供給溝１５を介して第１ノズル部材１のノズル孔１２へ
導通させて空気を供給するようにする。Further, an air supply groove 23 is formed in the second nozzle member 2 at the outer peripheral position of the bottom surface of the tapered joining hole, and the air supply groove 23 supplies air to the ring-shaped first stage nozzle 6. At the same time, the air is supplied to the nozzle hole 12 of the first nozzle member 1 through the air supply groove 15 formed in the first nozzle member 1 by conducting the air.
【００１６】また、通水路２１はその入り口側の内径ｂ
と、出口側の内径ｃと等しくするか、或いは異なるよう
にして定めるが、入り口側の内径ｂは通水路１１の大径
部１１ｂの内径ａよりも大とすると共に、通水路２１の
内周面には螺旋状又はリング状、さらには直線状の溝２
７を全内周面にわたって若しくは図示のように通水路２
１の入り口側半分に形成することもある。この溝２７を
螺旋形又はリング状に設ける場合は水流を旋回させて水
流を収束する効果があり、また直線状の溝とする場合は
水流を整流する効果がある。そして第２ノズル部材２の
出口側端面の形状を円錐形とし、この円錐端面２４の外
周にはねじ２５を刻設し、このねじ２５を介して第３ノ
ズル部材３と接合可能とする。The water passage 21 has an inner diameter b at its entrance side.
The inner diameter b of the inlet side is larger than the inner diameter a of the large diameter portion 11b of the water passage 11, and the inner diameter of the water passage 21 is set to be equal to or different from the inner diameter c of the outlet side. Spiral or ring-shaped or even straight grooves 2 on the surface
7 over the entire inner peripheral surface or as shown
It may be formed on the half of the entrance side. When the groove 27 is provided in a spiral or ring shape, the water flow is swirled to converge the water flow, and when the groove 27 is formed as a linear groove, the water flow is rectified. The outlet side end surface of the second nozzle member 2 has a conical shape, and a screw 25 is engraved on the outer periphery of the conical end surface 24 so that the second nozzle member 2 can be joined to the third nozzle member 3 via the screw 25.
【００１７】気泡熟成ゾーンＳ２を２段のノズルとして
構成する場合は、第２ノズル部材２の後端に第３ノズル
部材３を接合する。この第３ノズル部材３は内部に、第
２ノズル部材２の出口側通水路２１の内径ｃより少し大
径の内径ｄと、混気整流となるに必要な長さをＬ４を有
する通水路３１を形成し、先端側即ち入口側の内径を大
きくしてその内周面に第２ノズル部材と螺合する雌ねじ
３３を刻設し、かつこの大径部の内奥端面をテーパ形面
３２とし、これにより雌ねじ３３に第２ノズル部材２の
ねじ２５を螺合して一体とすると共に、テーパ形面３２
と円錐端面２４との間にリング状の第２段ノズル７を形
成する。そしてこの第２段ノズル７の幅は第３ノズル部
材３と第２ノズル部材２とのねじ２５，３３の螺合によ
って調整可能とする。また、通水路３１の内周面にも第
２ノズル部材２の通水路２１と同様に、通水路３１の内
周面には螺旋状又はリング状の溝を全内周面にわたって
若しくは図示のように通水路３１の入り口側部分に形成
することもある。When the bubble aging zone S2 is configured as a two-stage nozzle, the third nozzle member 3 is joined to the rear end of the second nozzle member 2. The third nozzle member 3 has an inside diameter d slightly larger than the inside diameter c of the outlet side water passage 21 of the second nozzle member 2 and a water passage 31 having a length L4 necessary for airflow rectification. The inner diameter of the tip side, that is, the inlet side, is increased, and a female screw 33 screwed with the second nozzle member is engraved on the inner peripheral surface thereof. Thereby, the screw 25 of the second nozzle member 2 is screwed and integrated with the female screw 33, and the tapered surface 32 is formed.
And the conical end face 24 to form a ring-shaped second stage nozzle 7. The width of the second stage nozzle 7 can be adjusted by screwing the screws 25 and 33 between the third nozzle member 3 and the second nozzle member 2. Similarly to the water passage 21 of the second nozzle member 2, a spiral or ring-shaped groove is formed on the inner surface of the water passage 31 over the entire inner surface or as shown in the drawing. May be formed at the entrance side of the water passage 31.
【００１８】さらに、通水路３１はその入り口側の内径
ｄと、出口側の内径ｅとを図示のように等しくするか、
或いは異なるようにして定めるものとすると共に、内奥
端面のテーパ形面３２の外周部には空気供給溝３４を形
成してリングスリット状の第２段ノズル７より通水路３
１内に空気を噴出するようにする。なお、気泡熟成ゾー
ンＳ２を１段のみのノズルとして構成する場合は、第３
ノズル部材は使用せず、さらに３段以上とする場合は図
４に示すように第４ノズル部材３′、さらに第５ノズル
部材を順次接合して構成するものである。Further, the inner diameter d of the inlet of the water passage 31 is made equal to the inner diameter e of the outlet as shown in FIG.
Alternatively, the air supply groove 34 is formed in the outer peripheral portion of the tapered surface 32 on the inner rear end surface, and the water passage 3 is formed from the ring-slit second stage nozzle 7.
1 so that air is blown into it. When the bubble aging zone S2 is configured as a single-stage nozzle, the third
In the case where the nozzle member is not used and three or more stages are provided, the fourth nozzle member 3 'and the fifth nozzle member are sequentially joined as shown in FIG.
【００１９】安定整流ゾーンＳ３は気泡熟成ゾーンＳ２
の最終段のノズル部材に、例えば図１に示すように第３
ノズル部材３あるいは図２に示す第４ノズル部材３′に
噴出管４を接合して構成する。この噴出管４は継手金具
９を介して第３ノズル部材３の出口側に継合する。第３
ノズル部材３と個別に製作される場合、この噴出管４の
基端側外周に雄ねじ４２を刻設して、第３ノズル部材後
端に螺合した継手金具９の雌ねじ９２と螺合し、第３ノ
ズル部材３と噴射管４とは同一軸心上に継合される。そ
してこの第３ノズル部材３端面と噴出管４の先端面との
間にリング状の第３ノズル８を形成すると共に、この第
３段ノズル８を第３ノズル部材３端部外周と継手金具４
間に設けた空気供給溝９１と導通させ、この空気供給溝
９１は第３ノズル部材３に設けた空気供給溝３５と互い
に導通している。The stable rectification zone S3 is a bubble aging zone S2
For example, as shown in FIG.
The ejection pipe 4 is joined to the nozzle member 3 or the fourth nozzle member 3 'shown in FIG. The ejection pipe 4 is connected to an outlet side of the third nozzle member 3 via a joint fitting 9. Third
When manufactured separately from the nozzle member 3, the male screw 42 is engraved on the base end side outer periphery of the ejection pipe 4 and screwed with the female screw 92 of the fitting 9 screwed to the rear end of the third nozzle member. The third nozzle member 3 and the injection pipe 4 are joined on the same axis. A ring-shaped third nozzle 8 is formed between the end face of the third nozzle member 3 and the tip end face of the ejection pipe 4, and the third stage nozzle 8 is connected to the outer periphery of the end of the third nozzle member 3 and the joint fitting 4.
The air supply groove 91 is electrically connected to the air supply groove 91 provided therebetween, and the air supply groove 91 is electrically connected to the air supply groove 35 provided in the third nozzle member 3.
【００２０】又、所要長の噴出管４の内部にはテーパ形
の通水路４１が形成されるが、この噴出管４の入口端側
の内径ｆを第３ノズル部材の出口側内径ｅより少し太径
として定め、これにより第３段ノズル位置で段差を生じ
させる。この噴出管４内の通水路４１のテーパ形状のテ
ーパ角ρは本発明曝気装置の設置される水深、汚水の粘
度等によって変わるもので、水深が深いほどテーパ角ρ
を大きくするか、もしくは噴出管長Ｌ５を長く、水深が
浅い場合はテーパ角ρを小とする。なおこのテーパ角
は２°から５°の範囲で定めるのが望ましい。また、噴
出管４のテーパ角の入口側と出口側との断面積比の関係
は次式で表される範囲とする。A tapered water passage 41 is formed inside the ejection pipe 4 having a required length. The inside diameter f at the inlet end of the ejection pipe 4 is slightly smaller than the inside diameter e at the outlet side of the third nozzle member. The diameter is determined as a large diameter, thereby causing a step at the position of the third stage nozzle. The taper angle ρ of the tapered shape of the water passage 41 in the jet pipe 4 varies depending on the water depth at which the aeration apparatus of the present invention is installed, the viscosity of sewage, and the like.
Or if the jet pipe length L5 is long and the water depth is shallow, the taper angle ρ is made small. This taper angle
Is preferably set in the range of 2 ° to 5 °. Further, the relationship of the cross-sectional area ratio between the inlet side and the outlet side of the taper angle of the ejection pipe 4 is in a range represented by the following equation.
【式２】 (Equation 2)
【００２１】更に、前記各ゾーンの通水路各段の内径比
は次式の範囲とする。Further, the inner diameter ratio of each stage of the water passage in each zone is in the range of the following equation.
【式３】 これにより気泡をより微細化（送気量は小となる）する
時はαを小とし、送気量を大とする必要のある時（気泡
径は上記より大となる）にはαを大きくする。αが１．
２より大となるときは、吸引力が弱くなるため空気管が
つまりやすい。また、各ゾーンの通水路各段の内径とそ
の長さとの関係は次式により表される範囲内とする。(Equation 3) Thus, when the air bubbles are made finer (the air supply amount is small), α is small, and when the air supply amount needs to be large (the bubble diameter is larger than the above), α is large. I do. α is 1.
When the value is larger than 2, the suction force is weakened, so that the air tube is easily clogged. The relationship between the inner diameter of each stage of the water passage in each zone and its length is within the range represented by the following equation.
【式４】 (Equation 4)
【００２２】従って気泡を液体中に充分溶存させるため
には所要の長さが必要であり、長すぎるときには製作上
不具合となると同時に、製品として全長が長くなりすぎ
て合理的でない。なお、４．５＜β＜８が最適である。
外筒５は互いに連結した第１ノズル部材１，第２ノズル
部材２，第３ノズル部材３の外周面を覆うようにした筒
体で、内部に空気室５１を形成し、各ノズル部材２，３
に形成した空気供給溝２３，３４，３５と空気室５１と
導通し、空気がこの各空気供給溝２３，３４，３５を経
てリング状の全ノズル６，７，８へ空気が供給できるよ
うにする。この外筒５は第２ノズル部材２の先端と継手
金具９に気密的に嵌合して固定され、この一部に吸気管
止具５２を設け、これに吸気管Ｐ２を接合し大気などの
空気又は気体を空気室５１内へ吸入できるようにする。Therefore, a required length is necessary to sufficiently dissolve the bubbles in the liquid. If the length is too long, it will cause a problem in production, and at the same time, the overall length of the product will be too long to be reasonable. Note that 4.5 <β <8 is optimal.
The outer cylinder 5 is a cylindrical body that covers the outer peripheral surfaces of the first nozzle member 1, the second nozzle member 2, and the third nozzle member 3 that are connected to each other, and has an air chamber 51 formed therein. 3
The air supply grooves 23, 34, 35 formed in the air passage 51 communicate with the air chamber 51 so that air can be supplied to all the ring-shaped nozzles 6, 7, 8 via the air supply grooves 23, 34, 35. I do. The outer cylinder 5 is airtightly fitted and fixed to the tip of the second nozzle member 2 and the fitting 9. An intake pipe stopper 52 is provided in a part of the outer cylinder 5, and an intake pipe P <b> 2 is joined to the outer pipe stop 52 so that the atmosphere can be prevented. Air or gas can be sucked into the air chamber 51.
【００２３】吸気管Ｐ２は曝気装置Ａが所定の水深位置
にセットされたとき、常に水面上方にその先端が突出す
るようにしてその長さを定め、その先端開口部を単に大
気中に開口しておくか、又は必要に応じてブロアー、圧
力空気源、酸素タンク等に接続し、曝気装置Ａ内の通水
路１１，２１，３１に圧力水を供給流水させるとき、こ
の通水路内にノズル部で生じる負圧にて空気を自吸する
ようにする。なお、大気中に開口する端部をフロートに
設けることもある。また、図中１０は噴出管４と継手金
具９とを固定するセット用のナットである。When the aeration device A is set at a predetermined water depth, the length of the suction pipe P2 is determined such that its tip always projects above the water surface, and its opening is simply opened to the atmosphere. Or when connected to a blower, a pressure air source, an oxygen tank, or the like as necessary, and when supplying pressurized water to the water passages 11, 21, 31 in the aeration apparatus A, a nozzle portion is provided in the water passage. The air is self-primed by the negative pressure generated in the step. The float may be provided with an end opening to the atmosphere. Reference numeral 10 in the figure denotes a setting nut for fixing the ejection pipe 4 and the fitting 9.
【００２４】図２に示す実施例は気泡熟成ゾーンを３段
式すなわち３つのノズル部材２、３、３′にて構成した
もので、これにより曝気装置全体の長さは増すが、２０
乃至８０ｍｍ径の中型から大型までの曝気に適する。こ
の実施例は第２ノズル部材或いは第３ノズル部材をその
通水孔径を変えて用いる。In the embodiment shown in FIG. 2, the bubble aging zone is constituted by a three-stage type, that is, by three nozzle members 2, 3, and 3 ', thereby increasing the length of the entire aeration apparatus.
It is suitable for aeration of medium to large diameters of up to 80 mm in diameter. In this embodiment, the second nozzle member or the third nozzle member is used by changing its water passage hole diameter.
【００２５】図３に示す実施例は２０ｍｍ以下の小口径
の曝気装置に適したもので、吸気管Ｐ２を接続した外筒
５０内奥部にテーパ形内底面５２を形成し、このテーパ
形内底面の中央位置には気泡熱成ゾーンＳ２となる通水
路５０１を連通し、この外筒５０の一端側に吸込ゾーン
Ｓ１となるノズル部材１０を螺合して一体とする。この
ノズル部材１０は図１に示すものとほぼ同じ形状とする
もので、このノズル部材１０の通水路１１内へスムース
に導かれるように通水路１１の基端部をラッパ状、ロー
ト状に形成し、この通水路１１は基端側の小径部１１ａ
と、出口側の大径部１１ｂとを、この内周面にて段差を
形成するようにして構成し、さらにノズル部材１０の出
口側外周形を円錐形の先端円錐面１４として、外筒５０
の奥端底面とによりリングスリット状のノズル６０を形
成する。The embodiment shown in FIG. 3 is suitable for an aerator having a small diameter of 20 mm or less. A tapered inner bottom surface 52 is formed at the inner part of an outer cylinder 50 to which an intake pipe P2 is connected. A water passage 501 serving as a bubble heat generation zone S2 communicates with the center position of the bottom surface, and a nozzle member 10 serving as a suction zone S1 is screwed into one end of the outer cylinder 50 to be integrated. The nozzle member 10 has substantially the same shape as that shown in FIG. 1. The base end of the water passage 11 is formed in a trumpet shape or a funnel shape so as to be smoothly guided into the water passage 11 of the nozzle member 10. The water passage 11 has a small diameter portion 11a on the base end side.
And the large-diameter portion 11b on the outlet side are formed so as to form a step on the inner peripheral surface. Further, the outer peripheral side of the nozzle member 10 on the outlet side is formed as a conical tip conical surface 14, and the outer cylinder 50 is formed.
A nozzle 60 having a ring slit shape is formed by the bottom surface of the rear end of the nozzle.
【００２６】また、ノズル部材１０内の段差位置に、即
ち通水路大径部１１ｂの段差位置に望ましくは小径部１
１ａに可及的に近接して１又は内周に沿って２以上のノ
ズル孔１２をまたこれより入口側にもノズル孔１７を夫
々通水路内に開口するように穿孔する。この通水路１１
の前後部のノズル孔１２、１７はノズル部材１０の外筒
５０との間に形成した吸気孔５１と導通している。通水
路１１の小径部１１ａの内径ｇは大径部１１ｂの内径ａ
より予め定めた差を有するようにして小径となるように
定められる。このノズル孔１７はノズル孔１２の上流側
にしかもノズル孔１２と同様にして穿孔形成され、吸気
はこの前後のノズル孔１２，１７とリングスリット状の
ノズル６０とにて行われるものである。そしてこの外筒
５０の後端に所要長の安定整流ゾーンＳ３となる噴出管
４０を接合するものである。尚、吸気は第１実施例と同
じであるため、その詳細説明は省略する。The small-diameter portion 1 is preferably located at a step position in the nozzle member 10, that is, at a step position of the large-diameter portion 11b of the water passage.
Two or more nozzle holes 12 are formed as close as possible to 1a, and two or more nozzle holes 12 are formed along the inner circumference, and nozzle holes 17 are formed on the inlet side so as to open into the water passage. This water channel 11
The nozzle holes 12 and 17 at the front and rear portions of the nozzle member 10 are electrically connected to the intake hole 51 formed between the nozzle member 10 and the outer cylinder 50. The inner diameter g of the small diameter portion 11a of the water passage 11 is the inner diameter a of the large diameter portion 11b.
It is determined so as to have a smaller diameter with a more predetermined difference. The nozzle hole 17 is formed in the upstream side of the nozzle hole 12 and is formed in the same manner as the nozzle hole 12, and the suction is performed by the front and rear nozzle holes 12 and 17 and the ring-slit nozzle 60. Then, an ejection pipe 40 serving as a stable rectification zone S3 of a required length is joined to the rear end of the outer cylinder 50. Since the intake is the same as in the first embodiment, a detailed description thereof will be omitted.
【００２７】上述の如く構成した図１に示す本発明の第
１実施例の曝気装置において、その作用を以下に説明す
る。曝気装置Ａを所定水位に設置し、給気管Ｐ２の開口
端を水面上方に、そして加圧給水管Ｐ１にポンプ又は水
中ポンプに接続し、このポンプを稼働すると加圧水は加
圧給水管Ｐ１より第１ノズル部材１の通水路１１内を加
圧給水管Ｐ１と通水路１１の断面積差により加速されて
流通する。この時通水路１１内にノズル孔１２を穿孔し
た位置において通水路内においてその前半と後半とに段
差があるため、太径となったノズル孔１２を有する後半
の通水路内にて負圧が発生する。これは通水路内を流下
する水流圧及び流速により予め定められる。この負圧に
よりノズル孔１２より吸気管Ｐ２、空気室５１、空気供
給溝２３等を経て給気し、流水中へ吐出される。この高
圧流水圧と水流とにより吐出気泡は破砕され、水と混合
されて流下する。そしてさらにこの流水が通水路１１よ
り通水路２１へ移る際にもその通水路１１内の内直径
ａ、ｇ間において段差があり、通水路１１ｂ側が太径と
なっているので、ここでも負圧が発生する。この負圧が
生じる位置にリングスリット状の第１ノズル６が形成さ
れているので、この第１ノズル６からも同様に吸気さ
れ、その気泡は破砕し微細化されて水流に混合されて流
下する。The operation of the above-structured aeration apparatus of the first embodiment of the present invention shown in FIG. 1 will be described below. The aeration device A is installed at a predetermined water level, the open end of the air supply pipe P2 is connected above the water surface, and a pump or a submersible pump is connected to the pressurized water supply pipe P1. The gas flows through the water passage 11 of the one nozzle member 1 at an accelerated speed due to a difference in cross-sectional area between the pressurized water supply pipe P1 and the water passage 11. At this time, since there is a step between the first half and the second half in the water passage at the position where the nozzle hole 12 is drilled in the water passage 11, the negative pressure is reduced in the second half water passage having the nozzle hole 12 having a large diameter. Occur. This is determined in advance by the pressure and flow rate of the water flowing down the water passage. With this negative pressure, air is supplied from the nozzle hole 12 through the intake pipe P2, the air chamber 51, the air supply groove 23, and the like, and is discharged into flowing water. The discharged bubbles are crushed by the high flow pressure and the water flow, mixed with water, and flow down. Further, when the flowing water moves from the water passage 11 to the water passage 21, there is a step between the inner diameters a and g in the water passage 11, and the water passage 11 b side has a large diameter. Occurs. Since the first nozzle 6 in the form of a ring slit is formed at the position where this negative pressure is generated, the air is also sucked in from the first nozzle 6 as well, and the bubbles are crushed and miniaturized, mixed with the water flow and flow down. .
【００２８】同様に第２ノズル２の通水路２１より第３
段ノズル部材３の通水路３１へ移る際にも通水路内径ｃ
とｄにおいて異なり下流側の通水路径ｄが太径のためこ
こでも負圧が発生し、リングスリット状の第２ノズル７
からも吸気し破砕されて水流内に混合される。ここで第
３ノズル８がない場合、この状態で噴出管４にて整流さ
れ汚水中へ噴出されるが、図１のように第３段ノズル部
材３と噴出管４間に第３ノズル８を有する場合、この第
３ノズル８からも同様に吸気破砕されて水流内に混合さ
れる。このようにして少なくとも流下水流中に異なる２
位置以上にて発生する負圧にて順次吸気された気泡が破
砕し混合されるので、水との混合が確実となり微細化さ
れる気泡はミクロン単位ともなるので酸素又は気体の溶
存性が向上するものである。さらにノズルがリング状ス
リット形としているのでノズルの詰まりも防止すること
ができる。Similarly, the third passage from the water passage 21 of the second nozzle 2
Even when moving to the water passage 31 of the step nozzle member 3, the water passage inner diameter c
And d, the downstream side water passage diameter d is large, so that a negative pressure is also generated here, and the ring slit-shaped second nozzle 7
The air is also sucked and crushed and mixed into the water stream. Here, if there is no third nozzle 8, in this state, it is rectified by the ejection pipe 4 and is ejected into the sewage, but the third nozzle 8 is inserted between the third-stage nozzle member 3 and the ejection pipe 4 as shown in FIG. If so, the air is crushed by suction from the third nozzle 8 and mixed into the water stream. In this way, at least two different
Bubbles sequentially sucked at the negative pressure generated above the position are crushed and mixed, so that mixing with water is ensured and the micronized bubbles are on the order of microns, so the solubility of oxygen or gas is improved. Things. Further, since the nozzle has a ring-shaped slit shape, clogging of the nozzle can be prevented.
【００２９】[0029]
【発明の効果】本発明の曝気装置においては、加圧給水
管を接続する筒状の第１段ノズル部材及び第２段ノズル
部材、第３段ノズル部材を同一軸心上に配設し、かつ互
いに連結固定して構成し、かつ各段ノズル部材接合位置
に吸気管より吸気するリングスリット状の各段ノズルを
夫々形成し、さらに各段ノズル部材の接合位置でリング
スリット状各段ノズル位置において通水路径を順次経段
毎に太い径となるよう異径段差を形成しているので、細
い通水路から太い通水路へ圧力水が通水するときこの通
水路径の段部にて負圧が発生して吸気管から空気等の気
体を吸引し易く、この吸引空気を太い径の通水路へ吐出
される高圧水の圧力にて破砕され、これが少なくとも２
段以上繰り返されるので、吸引する空気はミクロン単位
まで極めて微小化されかつ吐出水と混合撹拌され、所定
水深の汚水中に高圧水と共に吐出されるため、深い水深
でも曝気でき、また空気中の酸素又は気体の溶存率が向
上し、動力を少なくして曝気効率が従来に比べ飛躍的に
向上するものとなり、さらに水中での駆動部がなく保守
点検が容易となるなどの利点を有する。さらに、第１段
ノズル部材のリングスリット状のノズルより上流側位置
にノズル孔を穿設しているので、空気の吸引がより効果
的に行われ、微細化が促進される。また、構成が簡単で
安価となり、特に小容量の曝気用に適している。According to the aeration apparatus of the present invention, the first, second, and third cylindrical nozzle members connected to the pressurized water supply pipe are arranged on the same axis. And each stage nozzle member is connected and fixed to each other, and each of the stage nozzle members is formed with a ring slit-shaped stage nozzle to be sucked from the intake pipe at a joint position of each stage nozzle member. Since the diameter of the water passages is formed so that the diameter of the water passages becomes larger in each step, the pressure water flows from the narrow water passage to the thick water passage. Pressure is generated, and gas such as air is easily sucked from the intake pipe. This sucked air is crushed by the pressure of high-pressure water discharged into a large-diameter water passage, and this is crushed by at least 2 pressures.
The air to be sucked is extremely miniaturized down to the micron level and mixed and agitated with the discharge water, and is discharged together with the high-pressure water into the sewage at a predetermined depth. Alternatively, the gas dissolution rate is improved, the power is reduced, and the aeration efficiency is dramatically improved as compared with the related art. Further, there are no driving parts in water, and maintenance and inspection are facilitated. Further, since the nozzle hole is formed at a position on the upstream side of the ring-slit nozzle of the first-stage nozzle member, the air is sucked more effectively and the miniaturization is promoted. In addition, the structure is simple and inexpensive, and it is particularly suitable for small-volume aeration.
【図１】本発明曝気装置の第１実施例を示す断面図であ
る。FIG. 1 is a sectional view showing a first embodiment of the aeration apparatus of the present invention.
【図２】本発明曝気装置の第２実施例の断面図である。FIG. 2 is a sectional view of a second embodiment of the aeration apparatus of the present invention.
【図３】本発明曝気装置の第３実施例の断面図である。FIG. 3 is a sectional view of a third embodiment of the aeration apparatus of the present invention.
Ａ 曝気装置 Ｐ１ 加圧給水管 Ｐ２ 吸気管 １ 第１ノズル部材 １１ 通水路 １２ ノズル孔 ２ 第２ノズル部材 ２１ 通水路 ３ 第３ノズル部材 ３１ 通水路 ３４ 空気供給溝 ３５ 空気供給溝 ４ 噴出管 ４１ 通水路 ５ 外筒 ５１ 空気室 ６ 第１段ノズル ７ 第２段ノズル ８ 第３段ノズル A Aeration device P1 Pressurized water supply pipe P2 Intake pipe 1 First nozzle member 11 Water passage 12 Nozzle hole 2 Second nozzle member 21 Water passage 3 Third nozzle member 31 Water passage 34 Air supply groove 35 Air supply groove 4 Spout tube 41 Water passage 5 Outer cylinder 51 Air chamber 6 First stage nozzle 7 Second stage nozzle 8 Third stage nozzle
Claims (2)
ゾーン（Ｓ１）を形成する第１段ノズル部材（１）に、
１段もしくは複数段よりなる気泡熟成ゾーン（Ｓ２）の
ノズル部材（２），（３）と，安定整流ゾーン（Ｓ３）
となる噴出管（４）を同一軸心上に配設し、かつ互いに
連結固定して構成した曝気装置において、各段ノズル部
材接合位置に吸気管より吸気するリングスリット状の各
段ノズル（６），（７），（８）を夫々形成し、かつ第
１ノズル（６）より上流側位置にノズル孔（１２）を穿
設すると共に、各段ノズル位置において各段ノズル部材
の通水路径を順次経段毎に太径で、かつその異径比を経
段毎に小となる異径段差を形成したことを特徴とする曝
気装置。1. A first stage nozzle member (1) forming a suction zone (S1) connected to a pressurized water supply pipe (P1),
The nozzle member of one stage or multiple stages consisting bubble ripening zone (S2) (2), ( 3) and, stable rectifying zone (S3)
In the aeration apparatus in which the ejection pipes (4) are disposed on the same axis and are connected and fixed to each other, each of the ring slit-shaped stage nozzles (6) sucking air from the intake pipe to each stage nozzle member joining position. ), (7) and (8) are formed respectively, and a nozzle hole (12) is formed at a position upstream of the first nozzle (6), and a water passage diameter of each stage nozzle member at each stage nozzle position. Characterized by sequentially forming a step having a large diameter at each step and a step having a small diameter ratio at each step.
（１０）を一端に接合した外筒内奥部に気泡熱成ゾーン
（Ｓ２）となる通水路（５０１）を連通し、このノズル
部材（１０）の通水路（１１）には基端側の小径部（１
１ａ）と、出口側の大径部（１１ｂ）とを、この内周面
にて段差を形成するようにして構成し、さらにノズル部
材（１０）の出口側と外筒５０の奥端底面とによりリン
グスリット状のノズル（６０）を形成すると共に、ノズ
ル部材（１０）内の段差位置と、入口側にそれぞれノズ
ル孔（１２）、（１７）を通水路内に開口するように穿
孔し、外筒（５０）の後端に所要長の安定整流ゾーン
（Ｓ３）となる噴出管（４０）を接合して構成すること
を特徴とする曝気装置。2. A water passage (501) serving as a bubble heat generation zone (S2) communicates with an inner portion of an outer cylinder having a nozzle member (10) connected to an intake pipe (P2) connected to one end thereof. The water passage (11) of (10) has a small-diameter portion (1
1a) and the large-diameter portion (11b) on the outlet side are formed so as to form a step on the inner peripheral surface. Further, the outlet side of the nozzle member (10) and the bottom end bottom surface of the outer cylinder 50 To form a nozzle (60) in the form of a ring slit, and pierced so as to open the nozzle holes (12) and (17) into the water passage at the step position in the nozzle member (10) and the inlet side, respectively. An aeration apparatus characterized in that an ejection pipe (40) serving as a stable rectification zone (S3) of a required length is joined to a rear end of an outer cylinder (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8035424A JP2881570B2 (en) | 1995-02-20 | 1996-01-29 | Aeration device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5674795 | 1995-02-20 | ||
| JP7-56747 | 1995-02-20 | ||
| JP8035424A JP2881570B2 (en) | 1995-02-20 | 1996-01-29 | Aeration device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08290192A JPH08290192A (en) | 1996-11-05 |
| JP2881570B2 true JP2881570B2 (en) | 1999-04-12 |
Family
ID=26374405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8035424A Expired - Lifetime JP2881570B2 (en) | 1995-02-20 | 1996-01-29 | Aeration device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2881570B2 (en) |
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| JP3443728B2 (en) * | 1998-02-09 | 2003-09-08 | 孝 山本 | Wastewater purification equipment |
| JP2003112024A (en) * | 2001-10-04 | 2003-04-15 | Cyber Techno:Kk | Apparatus for producing ozone water |
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1996
- 1996-01-29 JP JP8035424A patent/JP2881570B2/en not_active Expired - Lifetime
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019093375A (en) * | 2017-11-24 | 2019-06-20 | 山本 孝 | Air mixing nozzle |
| KR20200028613A (en) * | 2018-09-07 | 2020-03-17 | 주식회사 이앤에이치 | Nano Bubble Water Generator with Self-aligned Air Gap Structure |
| KR102150865B1 (en) * | 2018-09-07 | 2020-09-02 | 주식회사 이앤에이치 | Nano Bubble Water Generator with Self-aligned Air Gap Structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08290192A (en) | 1996-11-05 |
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