JP3890009B2 - Aeration equipment - Google Patents

Aeration equipment Download PDF

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Publication number
JP3890009B2
JP3890009B2 JP2002342825A JP2002342825A JP3890009B2 JP 3890009 B2 JP3890009 B2 JP 3890009B2 JP 2002342825 A JP2002342825 A JP 2002342825A JP 2002342825 A JP2002342825 A JP 2002342825A JP 3890009 B2 JP3890009 B2 JP 3890009B2
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Japan
Prior art keywords
diffuser
air
panel
water treatment
elastic membrane
Prior art date
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Expired - Fee Related
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JP2002342825A
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Japanese (ja)
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JP2004174354A (en
Inventor
智彦 谷口
圭祐 松田
信太郎 鈴木
イー ジャンセン ドミニック
アール モーガン チャールズ
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Tsukishima Kikai Co Ltd
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Tsukishima Kikai Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

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  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、散気設備に関し、特に、散気パネルと他の形式の散気手段とを有する散気設備に関する。
【0002】
【従来の技術】
複数の曝気槽を有する水処理設備では、主ブロワから空気を各曝気槽に分配し、各曝気槽に設置されている散気手段に供給するように構成するのが一般的である。散気手段としては、ディフューザー形式のものがよく用いられているが、近年、多数の散気孔を有する弾性膜を支持板上に配置し、支持板と弾性膜との間に気体を送気して、弾性膜を所定の膨張状態に維持しつつ前記散気孔から散気を行う、いわゆる散気パネルが注目を集めている。散気パネルは、散気面積を広くできまた微細気泡の散気が行えることから、ディフューザー形式のものより散気能力が高い。このような散気パネルの利点により、水処理設備の中には散気パネルを導入したいという要望が増えてきている。特に、複数の曝気槽を備える水処理設備では、コスト面等の問題からすべての曝気槽に一度に散気パネルを導入することが困難な場合もあり、段階的に散気パネルを導入したいという要望もある。このような要望に応えるには、散気パネルと他の形式の散気手段とが混在する散気設備の構築が必要となる。
【特許文献1】
特開2002−35785号公報
【0003】
【発明が解決しようとする課題】
しかしながら、これまで、散気パネルと他の形式の散気手段とを混在させた散気設備は構築されていない。
【0004】
そこで、本発明の主たる課題は、散気パネルを有する水処理槽と他の形式の散気手段を有する水処理槽とを有する散気設備を提供することにある。
【0005】
【課題を解決するための手段】
上記課題を解決した本発明およびその作用効果は次記のとおりである。
<請求項1記載の発明>
多数の散気孔を有する弾性膜が支持板上に配置され、前記弾性膜の所定のゾーンの周囲が前記支持板上に固定され、前記支持板と弾性膜との間に送気された気体の圧力によって、前記弾性膜が膨張状態に維持されつつ前記散気孔から散気がなされる散気パネルが、水処理槽内に前記弾性膜を上面として設置され、かつ
他の形式の散気手段が水処理槽内に設置される散気設備であって、
同一の送気源としての送気ブロワに接続された主管路から分岐した各枝管路を介して並列的に、前記散気パネルと前記散気手段とが接続され、
かつ、前記散気パネルへの枝管路及び前記散気手段への枝管路の何れか一方の管路に昇圧ブロワを設けて昇圧を図るように構成されている、
ことを特徴とする散気設備。
【0006】
【0007】
(作用効果)
散気パネルは、気体を送気して散気を行うものであるので、散気パネルと他の散気手段とを、同一の送気源に接続された主管路から分岐した各枝管路を介して並列的に接続することで、散気設備を構築することができる。
【0008】
一方、散気パネルと他の散気手段とは、必要となる送気圧力が異なる場合があるので、同一の送気源に接続された主管路から各枝管路を分岐させて並列的に散気パネルと他の散気手段に送気を行うにあたって、前記散気パネルと他の散気手段の設置高さを同じにすると、散気パネルへの送気量と他の散気手段への送気量に偏差が生じ、各水処理槽で好適な散気がされない事態が生ずる可能性がある。そこで、散気パネルと他の散気手段の設置高さを異なることとすると、散気パネル面に受ける水圧が調節でき、もって、散気パネルからの散気に必要となる送気圧が調整でき、散気パネルへの空気量とその他の散気手段への空気量を調整することが可能となり、散気パネルを有する水処理槽と他の散気手段を有する水処理槽の両方で好適な水処理を行うことが可能な散気設備を構築することができる。
【0009】
特に、散気パネルと他の散気手段とを比較して、散気パネルのほうが低い送気圧で散気を行うものである場合には、散気パネルを、他の散気手段のよりも、低い位置に設置することで、散気パネルへの空気量とその他の散気手段への空気量が調整される。もちろん、散気パネルと他の散気手段とを比較して、ほぼ同等の送気圧で散気がなされるものである場合には、前記散気パネルと前記散気手段の設置高さを実質的に同一にすることができる。
【0010】
他方、散気パネルと他の散気手段とは、必要となる送気圧力が異なる場合においては、枝管路に昇圧ブロアを設けて昇圧を図ることにより、散気パネルへの空気量とその他の散気手段への空気量を調整し、散気パネルを有する水処理槽と他の散気手段を有する水処理槽の両方で好適な水処理を行うようにして、散気設備を構築することもできる。この昇圧ブロアを設ける場合には、散気パネルと他の散気手段との設置高さを任意の設置高さとすることができるようになる。従って、散気パネルと他の散気手段とが異なる送気圧力を必要とする場合であっても、設置高さを実質的に同一にすることができる。
【0011】
【発明の実施の形態】
次いで、本発明の実施の形態を図面を参照しながら以下に詳述する。
(第1の実施の形態)
第1の実施の形態を図1〜3を参照しながら説明する。図1は、本実施の形態にかかる散気設備を備える水処理設備の概略であり、図2は本実施の形態にかかる散気パネルの例を示す図である。図3は散気状態にある散気パネルの一部を示す図である。
【0012】
図1に示される水処理設備は、同形状の二つの水処理水槽A,Bを備え、各水処理槽にはほぼ同量の処理水が保持されている。水処理槽Aにはディフューザー形式の散気手段D(以下、DF散気装置と記載)が設けられており、水処理槽Bには、散気パネルPが散気面となる弾性膜10を上面として固定されている。
【0013】
かかる散気パネルPおよびDF散気装置Dは、水処理設備内に設けられている同一の主ブロアBmに接続されている送気管Lから枝分かれした枝管L1,L2に並列的に接続されており、前記主ブロワBmからの空気が散気パネルPとDF散気装置Dとに分配されて送気されるように構成されている。散気パネルPおよびDF散気装置Dへ連通する枝管の途中には各散気手段への送気圧を測定するための図示されない圧力計および送気圧の微調整を行うためのバルブV1,V2が設けられている。
【0014】
水処理槽Aに設けられているDF散気装置Dは、水処理槽Aの底に円筒型のディフューザーd,d…が散気口部を上方に向けて多数固定設置され、それらディフューザーd,d…に空気が送気されるように前記枝管L1からさらに分岐された接続管が接続され、前記主ブロワBmから送気されると各ディフューザーd,d…から一斉に散気がなされるように構成されている。
【0015】
水処理槽Bに設置される散気パネルPは、合成樹脂製の支持板11上に多数の散気孔Hを有する樹脂製の弾性膜10が配置され、前記弾性膜が支持板に対して、ステンレス製の外周縁フレームF1およびチャンネルフレームF2によって固定されて構成されている。図2中、16はチャンネルフレームによって分けられる領域すべてに送気がなされるようにする溝である。15は水処理槽内に固定するための固定部材である。
【0016】
この散気パネルPは、弾性膜面側に設けられた送気口12を介して、弾性膜10と支持板11との間に連通するように枝管L2が接続されており、前記主ブロアBmから送気された空気が送気管Lおよび枝管L2を通って弾性膜10と支持板11との間に供給される。送気がなされると図3に示されるように、弾性膜10が支持板に密着していた状態(図中Aに示す状態)から膨張した状態(図中Bに示す状態)となり弾性膜上の散気孔Hが開き、送気圧が弾性膜10上にかかる水頭圧を超えると散気が開始される。散気パネルPは、散気面の面積が広く、また、散気にあたって弾性膜を膨張させる必要性があるため、DF散気装置Dと比較して散気のために必要となる送気圧が高い。従って、散気パネルとディフューザーとを同じ設置位置とすると、各散気手段に送気される送気量に偏差が生じて各水処理槽において好適な水処理が行えない。
【0017】
前記水処理設備では、前記散気パネルPは、ディフューザーd,d…の設置位置より浅い位置に設置されている。すなわち、(ディフューザーの上面から水面までの距離h1)>(水面から散気パネルの上面から水面までの距離=h2)となっている。散気パネルPとディフューザーd,d…の設置位置をこのような位置関係にすることで、散気パネルPの散気面に受ける水圧が低くなり、散気に必要な圧力すなわち弾性膜の膨張に必要な圧力や散気穴から気泡が発生するために必要な圧力が相対的に減少し、DF散気装置Dにおいて散気が開始される送気圧と、散気パネルPにおいて散気が開始される送気圧とが調整され、主ブロアBmからの空気が散気パネルとDF散気装置に必要量分配されて送気されるようになり各水処理槽において好適な水処理が行われる。
【0018】
なお、前記散気パネルPをディフューザーd,d…よりもどの程度高い位置に設置するかについては限定されない。散気パネルPの散気面にうける水圧やディフューザーd,d…からの散気に必要となる送気圧などを考慮して、散気パネルPから散気するのに必要な送気量と、DF散気装置Dから散気するのに必要な送気量が確保される位置に散気パネルPを設置する。
【0019】
ここで、散気パネルPは、水処理水槽の底に設けるのが好ましいが、本発明者らが実験を行ったところ、散気パネルにより発生させられる気泡が非常に微細であるので、水処理槽内で十分に気泡が拡散し、設置位置が高くとも水処理が可能であることを確認している。
【0020】
また、本実施の形態においては、ディフューザーd,d…と散気パネルPの水処理槽底からの設置高さを同じにしたときに、散気パネルの送気圧がDF散気装置の送気圧より高くなる場合であるので、散気パネルPの設置高さをディフューザーd,d…の設置高さよりも高い位置としたが、水処理槽内に保持される処理水の水位や散気パネルの形状や大きさによっては、ディフューザーd,d…と散気パネルPの設置高さを同じにすると、散気パネルの送気圧がDF散気装置の送気圧よりも低くなる場合もあるので、その場合には、ディフューザーよりも散気パネルを低い位置に設置する。
【0021】
また、図示はしないが、散気パネルの送気圧とDF散気装置の送気圧との調節を図るべく、散気パネルに接続される枝管路の途中に昇圧ブロワB1を設けてもよい。
【0022】
(第2の実施の形態)
第2の実施の形態は、散気パネルとDF散気装置とを水処理槽に同様の深さで設置した散気設備である。図4に本実施の形態にかかる水処理設備の概略をしめす。図4に示す第2の実施の形態の水処理設備では、散気パネルPおよびDF散気装置Dのディフューザーd,d…ともに、水処理槽の底に設置されており、(ディフューザーの上面から水面までの距離h1)=(水面から散気パネルの上面から水面までの距離=h2)となっている。本実施の形態においては、散気パネルへの送気量とDF散気装置への送気量との調整を図るべく、散気パネルに接続される枝管路の途中に昇圧ブロワB1を設けている。この昇圧ブロワB1によって散気パネルに送気される空気量を必要量となるまで昇圧し、散気パネルに必要量の空気が送気されるようにしている。それとともに、DF散気装置Dへ過度の送気がなされないように主ブロアBmの送気量を調整している。本実施の形態においても第1の実施の形態と同様に、主ブロアBmからの空気が散気パネルとDF散気装置に必要量分配されて送気されるようになり各水処理槽において好適な水処理が行われる。
【0023】
なお、散気パネルの送気圧とDF散気装置の送気圧との調節を図る必要がない場合には、昇圧ブロワB1を省略することができる。
【0024】
(その他)
上記に示す第1および第2の実施の形態では、DF散気装置が設けられている水処理槽Aと散気パネルが設けられている水処理槽Bとの二つの水処理槽を有する水処理設備を例に説明したが、水処理槽の数は二つに限定されるわけではない。二以上の水処理槽を有する水処理設備において、少なくともひとつの水処理槽に散気パネルを設置するように構成されている散気設備であってもよい。また、他の散気手段は、DF散気装置に限られるものでもない。
【0025】
【発明の効果】
以上詳述のとおり、本発明によれば、散気パネルと他の散気手段とが混在する散気設備が提供される。
【図面の簡単な説明】
【図1】 第1の実施の形態を説明するための図である。
【図2】 散気パネルを示す図である。
【図3】 散気状態の弾性膜を示す散気パネルの一部断面図である。
【図4】 第2の実施の形態を説明するための図である。
【符号の説明】
1…水処理設備、10…弾性膜、11…支持板、12…送気口、Bm…主ブロア、B1…昇圧ブロア、L…送気管、L1,L2…枝管、P…散気パネル、V1,V2…バルブ。
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air diffuser, and more particularly to an air diffuser having an air diffuser panel and another type of air diffuser.
[0002]
[Prior art]
In a water treatment facility having a plurality of aeration tanks, it is general that air is distributed from the main blower to each aeration tank and supplied to the aeration means installed in each aeration tank. As a diffuser, a diffuser type is often used. However, in recent years, an elastic membrane having a large number of diffused holes is arranged on a support plate, and gas is supplied between the support plate and the elastic membrane. Thus, a so-called diffused panel that draws air from the diffused holes while maintaining the elastic membrane in a predetermined expanded state is drawing attention. The diffuser panel has a larger diffuser capacity than the diffuser type because it can widen the diffused area and diffuse fine bubbles. Due to the advantages of such an air diffuser panel, there is an increasing demand for introducing an air diffuser panel in water treatment facilities. In particular, in water treatment facilities with multiple aeration tanks, it may be difficult to introduce an aeration panel to all aeration tanks at once due to cost and other problems. There is also a request. In order to meet such demands, it is necessary to construct a diffuser facility in which a diffuser panel and other types of diffuser means are mixed.
[Patent Document 1]
Japanese Patent Laid-Open No. 2002-35785
[Problems to be solved by the invention]
However, until now, no aeration facility in which an aeration panel and other types of aeration means are mixed has been constructed.
[0004]
Then, the main subject of this invention is providing the aeration equipment which has the water treatment tank which has an aeration panel, and the water treatment tank which has another type of aeration means.
[0005]
[Means for Solving the Problems]
The present invention that has solved the above-described problems and the effects thereof are as follows.
<Invention of Claim 1>
An elastic membrane having a large number of air diffusion holes is disposed on a support plate, and a periphery of a predetermined zone of the elastic membrane is fixed on the support plate, and the gas supplied between the support plate and the elastic membrane An air diffuser panel in which air is diffused from the air diffuser while the elastic membrane is maintained in an expanded state by pressure is installed in the water treatment tank with the elastic membrane as an upper surface; and
Another type of air diffuser is an air diffuser installed in the water treatment tank,
In parallel with each branch pipe branched from the main pipe connected to the air supply blower as the same air supply source, the air diffuser panel and the air diffuser are connected,
And it is configured so as to increase the pressure by providing a booster blower in one of the branch line to the diffuser panel and the branch line to the diffuser.
A diffuser characterized by that.
[0006]
[0007]
(Function and effect)
Since the air diffuser panel diffuses air by supplying gas, each branch pipe branching off the air diffuser panel and other air diffusers from the main pipe connected to the same air supply source A diffuser facility can be constructed by connecting in parallel.
[0008]
On the other hand, since the required air supply pressure may be different between the air diffuser panel and the other air diffuser means, each branch pipe is branched from the main pipe connected to the same air supply source in parallel. When air is supplied to the air diffuser panel and the other air diffuser, if the installation height of the air diffuser panel and the other air diffuser is the same, the air supply amount to the air diffuser panel and the other air diffuser There is a possibility that a deviation may occur in the amount of air supplied, and there is a possibility that a suitable aeration is not performed in each water treatment tank. Therefore, if the installation height of the diffuser panel is different from that of other diffuser means, the water pressure applied to the diffuser panel surface can be adjusted, and the air pressure required for the diffuser from the diffuser panel can be adjusted. It is possible to adjust the amount of air to the diffuser panel and the amount of air to the other diffuser means, which is suitable for both the water treatment tank having the diffuser panel and the water treatment tank having the other diffuser means. It is possible to construct an air diffuser capable of performing water treatment.
[0009]
In particular, when the diffuser panel is compared with other diffuser means and the diffuser panel diffuses at a lower air supply pressure, the diffuser panel is more than the other diffuser means. By installing at a low position, the amount of air to the diffuser panel and the amount of air to the other diffuser are adjusted. Of course, when the diffuser panel is compared with other diffuser means and the diffuser is made with substantially the same air pressure, the installation height of the diffuser panel and the diffuser means is substantially the same. Can be made identical.
[0010]
On the other hand, if the required air supply pressure differs between the air diffuser panel and the other air diffuser, the amount of air to the air diffuser panel and other factors can be increased by providing a pressure booster blower in the branch pipe. Aeration equipment is constructed by adjusting the amount of air to the air diffusion means and performing suitable water treatment in both the water treatment tank having the air diffusion panel and the water treatment tank having other air diffusion means. You can also When this booster blower is provided, the installation height of the air diffusion panel and other air diffusion means can be set to an arbitrary installation height. Therefore, even when the air diffuser panel and the other air diffusers require different air supply pressures, the installation height can be made substantially the same.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described in detail below with reference to the drawings.
(First embodiment)
A first embodiment will be described with reference to FIGS. FIG. 1 is a schematic view of a water treatment facility including an air diffusion facility according to the present embodiment, and FIG. 2 is a diagram illustrating an example of an air diffusion panel according to the present embodiment. FIG. 3 is a view showing a part of the diffuser panel in the diffuse state.
[0012]
The water treatment facility shown in FIG. 1 includes two water treatment water tanks A and B having the same shape, and substantially the same amount of treated water is held in each water treatment tank. The water treatment tank A is provided with a diffuser-type diffuser D (hereinafter referred to as a DF diffuser), and the water treatment tank B is provided with an elastic membrane 10 on which the diffuser panel P serves as a diffuser surface. It is fixed as the top surface.
[0013]
The diffuser panel P and the DF diffuser D are connected in parallel to branch pipes L1 and L2 branched from an air supply pipe L connected to the same main blower Bm provided in the water treatment facility. The air from the main blower Bm is distributed and sent to the diffuser panel P and the DF diffuser D. In the middle of the branch pipes communicating with the diffuser panel P and the DF diffuser D, a pressure gauge (not shown) for measuring the air pressure supplied to each air diffuser and a valve V 1 for performing fine adjustment of the air pressure, V 2 is provided.
[0014]
In the DF diffuser D provided in the water treatment tank A, a large number of cylindrical diffusers d, d... Are fixedly installed on the bottom of the water treatment tank A with the diffuser ports facing upward, and the diffusers d, A connecting pipe further branched from the branch pipe L1 is connected so that air is supplied to d..., and when diffused from the main blower Bm, air is diffused from the diffusers d, d. It is configured as follows.
[0015]
The diffuser panel P installed in the water treatment tank B has a resin-made elastic membrane 10 having a large number of diffused holes H on a synthetic resin-made support plate 11, and the elastic membrane is located on the support plate. The outer peripheral frame F 1 and the channel frame F 2 are made of stainless steel. In FIG. 2, reference numeral 16 denotes a groove that allows air to be supplied to all areas divided by the channel frame. Reference numeral 15 denotes a fixing member for fixing in the water treatment tank.
[0016]
The diffuser panel P is connected to a branch pipe L2 so as to communicate between the elastic membrane 10 and the support plate 11 via an air supply port 12 provided on the elastic membrane surface side. The air supplied from Bm is supplied between the elastic membrane 10 and the support plate 11 through the air supply pipe L and the branch pipe L2. When the air is supplied, as shown in FIG. 3, the elastic film 10 is in an expanded state (shown as B in the figure) from a state where the elastic film 10 is in close contact with the support plate (shown as A in the figure). When the air diffusion hole H is opened and the air supply pressure exceeds the water head pressure applied on the elastic membrane 10, the air diffusion is started. The air diffuser panel P has a large area of the air diffuser surface, and it is necessary to expand the elastic membrane during the air diffuser. Therefore, compared with the DF air diffuser D, the air supply pressure required for air diffuser is smaller. high. Therefore, if the diffuser panel and the diffuser are set at the same installation position, a deviation occurs in the amount of air supplied to each diffuser, and a suitable water treatment cannot be performed in each water treatment tank.
[0017]
In the water treatment facility, the diffuser panel P is installed at a position shallower than the installation position of the diffusers d, d. That is, (distance h1 from the upper surface of the diffuser to the water surface)> (distance from the upper surface of the diffuser panel to the water surface = h2). By setting the installation position of the diffuser panel P and the diffusers d, d... In such a positional relationship, the water pressure received on the diffuser surface of the diffuser panel P is reduced, and the pressure required for the diffuser, that is, the expansion of the elastic film The pressure required for air bubbles and the pressure required to generate bubbles from the air diffuser holes are relatively reduced, and the air supply pressure at which the air diffuser starts in the DF air diffuser D and the air diffuser starts at the air diffuser panel P. The air pressure to be supplied is adjusted, and the air from the main blower Bm is distributed to the air diffuser panel and the DF air diffuser in a necessary amount and supplied, so that suitable water treatment is performed in each water treatment tank.
[0018]
In addition, it is not limited as to how much the diffuser panel P is installed at a position higher than the diffusers d, d. In consideration of the water pressure applied to the diffuser surface of the diffuser panel P and the air pressure required for diffuser from the diffusers d, d..., The amount of air necessary to diffuse from the diffuser panel P; The diffuser panel P is installed at a position where an air supply amount necessary to diffuse from the DF diffuser D is secured.
[0019]
Here, it is preferable to provide the diffuser panel P at the bottom of the water treatment water tank. However, when the present inventors conducted experiments, the bubbles generated by the diffuser panel are very fine. It has been confirmed that air bubbles are sufficiently diffused in the tank and water treatment is possible even when the installation position is high.
[0020]
In this embodiment, when the installation height of the diffusers d, d... And the diffuser panel P from the bottom of the water treatment tank is the same, the air pressure of the diffuser panel is the same as that of the DF diffuser. In this case, the height of the diffuser panel P is set higher than the height of the diffusers d, d... But the water level of the treated water held in the water treatment tank and the diffuser panel Depending on the shape and size, if the installation height of the diffusers d, d... And the diffuser panel P is the same, the air pressure of the diffuser panel may be lower than the air pressure of the DF diffuser. In some cases, the diffuser panel is installed at a lower position than the diffuser.
[0021]
Although not shown, a booster blower B1 may be provided in the middle of the branch pipe connected to the air diffuser panel in order to adjust the air pressure of the air diffuser panel and the air pressure of the DF diffuser.
[0022]
(Second Embodiment)
The second embodiment is a diffuser facility in which a diffuser panel and a DF diffuser are installed in a water treatment tank at the same depth. FIG. 4 shows an outline of the water treatment facility according to the present embodiment. In the water treatment facility of the second embodiment shown in FIG. 4, both the diffuser panels P and the diffusers d, d of the DF diffuser D are installed at the bottom of the water treatment tank (from the upper surface of the diffuser). The distance h1) to the water surface = (the distance from the water surface to the upper surface of the diffuser panel = h2). In the present embodiment, a booster blower B1 is provided in the middle of the branch pipe connected to the air diffusion panel in order to adjust the air supply amount to the air diffusion panel and the air supply amount to the DF air diffusion device. ing. The booster blower B1 boosts the amount of air supplied to the diffuser panel until the required amount is reached, so that the required amount of air is supplied to the diffuser panel. At the same time, the air supply amount of the main blower Bm is adjusted so that excessive air supply to the DF diffuser D is not performed. Also in the present embodiment, as in the first embodiment, the air from the main blower Bm is distributed in a necessary amount to the diffuser panel and the DF diffuser and is sent to the water treatment tank. Water treatment is performed.
[0023]
Note that the booster blower B1 can be omitted when there is no need to adjust the air supply pressure of the diffuser panel and the air supply pressure of the DF diffuser.
[0024]
(Other)
In 1st and 2nd embodiment shown above, the water which has two water treatment tanks, the water treatment tank A in which the DF diffuser is provided, and the water treatment tank B in which the diffuser panel is provided Although the treatment facility has been described as an example, the number of water treatment tanks is not limited to two. In the water treatment facility having two or more water treatment tanks, it may be an air diffusion facility configured to install an air diffusion panel in at least one water treatment tank. Further, the other air diffuser is not limited to the DF air diffuser.
[0025]
【The invention's effect】
As described above in detail, according to the present invention, an air diffuser facility in which an air diffuser panel and other air diffuser are mixed is provided.
[Brief description of the drawings]
FIG. 1 is a diagram for explaining a first embodiment;
FIG. 2 is a view showing an air diffusion panel.
FIG. 3 is a partial cross-sectional view of an air diffuser panel showing an elastic film in an air diffuse state.
FIG. 4 is a diagram for explaining a second embodiment;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Water treatment equipment, 10 ... Elastic membrane, 11 ... Support plate, 12 ... Air supply port, Bm ... Main blower, B1 ... Booster blower, L ... Air supply pipe, L1, L2 ... Branch pipe, P ... Air diffuser panel, V 1 , V 2 ... valves.

Claims (1)

多数の散気孔を有する弾性膜が支持板上に配置され、前記弾性膜の所定のゾーンの周囲が前記支持板上に固定され、前記支持板と弾性膜との間に送気された気体の圧力によって、前記弾性膜が膨張状態に維持されつつ前記散気孔から散気がなされる散気パネルが、水処理槽内に前記弾性膜を上面として設置され、かつAn elastic membrane having a large number of air diffusion holes is disposed on a support plate, and a periphery of a predetermined zone of the elastic membrane is fixed on the support plate, and the gas supplied between the support plate and the elastic membrane An air diffuser panel in which air is diffused from the air diffuser while the elastic membrane is maintained in an expanded state by pressure is installed in the water treatment tank with the elastic membrane as an upper surface; and
他の形式の散気手段が水処理槽内に設置される散気設備であって、Another type of air diffuser is an air diffuser installed in the water treatment tank,
同一の送気源としての送気ブロワに接続された主管路から分岐した各枝管路を介して並列的に、前記散気パネルと前記散気手段とが接続され、In parallel with each branch pipe branched from the main pipe connected to the air supply blower as the same air supply source, the air diffuser panel and the air diffuser are connected,
かつ、前記散気パネルへの枝管路及び前記散気手段への枝管路の何れか一方の管路に昇圧ブロワを設けて昇圧を図るように構成されている、And it is configured so as to increase the pressure by providing a booster blower in one of the branch line to the diffuser panel and the branch line to the diffuser.
ことを特徴とする散気設備。A diffuser characterized by that.
JP2002342825A 2002-11-26 2002-11-26 Aeration equipment Expired - Fee Related JP3890009B2 (en)

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JP4716805B2 (en) * 2005-06-23 2011-07-06 三菱電線工業株式会社 Porous membrane material and diffuser
JP4687961B2 (en) * 2005-06-24 2011-05-25 有限会社中島工業 Floating water purification system
KR100555627B1 (en) * 2005-09-13 2006-03-03 송기수 Downward type bubble apparatus
AT506717A1 (en) * 2008-05-02 2009-11-15 Aquaconsult Anlagenbau Gmbh DEVICE FOR REGISTERING GAS BLOCKS INTO A LIQUID
JP7545197B2 (en) 2019-03-18 2024-09-04 住友重機械エンバイロメント株式会社 Air diffusion system, air diffusion system operation method, and fan renewal method

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