JP2015192975A - Air diffuser, air diffusion method, and air diffusion plate - Google Patents
Air diffuser, air diffusion method, and air diffusion plate Download PDFInfo
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- JP2015192975A JP2015192975A JP2014073167A JP2014073167A JP2015192975A JP 2015192975 A JP2015192975 A JP 2015192975A JP 2014073167 A JP2014073167 A JP 2014073167A JP 2014073167 A JP2014073167 A JP 2014073167A JP 2015192975 A JP2015192975 A JP 2015192975A
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- 238000007789 sealing Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 8
- 238000012856 packing Methods 0.000 abstract description 41
- 239000000463 material Substances 0.000 abstract description 7
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- 230000006866 deterioration Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 230000002093 peripheral effect Effects 0.000 abstract description 3
- 238000005273 aeration Methods 0.000 description 14
- 239000002351 wastewater Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
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- 239000010802 sludge Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
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- 239000007788 liquid Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
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- 229920000728 polyester Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
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- 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
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- Accessories For Mixers (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
Description
本発明は、液体中に微細な気泡を分散させるための散気装置、その散気装置を用いる散気方法、及び、その散気装置に用いる散気板に関するものである。さらに詳しくは、排水等を生物学的水処理するための曝気槽に用いる散気装置、その散気装置を用いる散気方法、及び、その散気装置に用いる散気板に関するものである。 The present invention relates to an air diffuser for dispersing fine bubbles in a liquid, an air diffuser using the air diffuser, and an air diffuser plate used in the air diffuser. More specifically, the present invention relates to an air diffuser used in an aeration tank for biological water treatment of waste water and the like, an air diffuser method using the air diffuser, and an air diffuser plate used in the air diffuser.
下水や汚水等の排水を処理する方法として、活性汚泥を用いた方法が知られている。この方法では、排水処理装置に曝気槽を設け、この曝気槽内に散気装置を設置し、この散気装置により空気を微細な気泡として排水中に分散して微生物の生育環境を調整するものである。 As a method for treating wastewater such as sewage and sewage, a method using activated sludge is known. In this method, an aeration tank is provided in the waste water treatment apparatus, and an aeration apparatus is installed in the aeration tank, and air is dispersed in the waste water as fine bubbles by this aeration apparatus to adjust the microbial growth environment. It is.
従来の散気装置１０は、図３に示すように、角型の散気板２０、ホルダ３、パッキン６０、抑え金具４及び固定ボルト５を備えたものである。ホルダ３の上には、パッキン６０及び散気板２０が載置され、抑え金具４及び固定ボルト５で固定されている。
ホルダ３の内部は空洞となっており、上部には空気供給孔３３が形成されている。また、ホルダの内部空洞は、空気通路３１、ホルダ空気配管３２と連通しており、ホルダ空気配管３２により供給された空気は、空気通路３１を介してホルダ３の内部空洞に送気され、空気供給孔３３より上部に排出される。
パッキン６０は、散気板２０の外周と略同一形状となるように角型に形成され、一定の厚みを有している。パッキン６０は、ホルダ３の空気供給孔３３を囲むように配置される。空気供給孔３３から排出された空気は、パッキン６０、散気板２０により形成された空気室の全域に拡散する。
散気板２０は、多孔質樹脂又は多孔質セラミックにより形成された板状部材であり、前記空気室に拡散した空気を微細な気泡として排水中に分散するものである。
As shown in FIG. 3, the conventional air diffuser 10 includes a square air diffuser plate 20, a holder 3, a packing 60, a holding metal fitting 4, and a fixing bolt 5. On the holder 3, the packing 60 and the diffuser plate 20 are placed and fixed by the holding metal fitting 4 and the fixing bolt 5.
The inside of the holder 3 is hollow, and an air supply hole 33 is formed in the upper part. The internal cavity of the holder communicates with the air passage 31 and the holder air pipe 32, and the air supplied by the holder air pipe 32 is sent to the internal cavity of the holder 3 through the air passage 31, and the air It is discharged from the supply hole 33 to the upper part.
The packing 60 is formed in a square shape so as to have substantially the same shape as the outer periphery of the diffuser plate 20, and has a certain thickness. The packing 60 is disposed so as to surround the air supply hole 33 of the holder 3. The air discharged from the air supply hole 33 diffuses throughout the air chamber formed by the packing 60 and the diffuser plate 20.
The diffuser plate 20 is a plate-like member formed of a porous resin or a porous ceramic, and disperses the air diffused into the air chamber as fine bubbles in the waste water.
この散気装置では、空気室に空気圧が掛かった際に、角型のパッキン６０の各辺に作用し、辺の中央に最大の撓みをもたらす等分布荷重が加わる。この荷重によりパッキンに膨らみが生じ、この部分から空気が漏れるという恐れがあった。 In this air diffuser, when air pressure is applied to the air chamber, an evenly distributed load is applied to each side of the square packing 60 and causes maximum deflection at the center of the side. Due to this load, the packing swells, and there is a fear that air leaks from this portion.
特許文献１では、この問題に対して、パッキンの隣り合う辺をたすきで連結することにより、パッキンの膨らみを防止した散気板用パッキンが記載されている。 Patent Document 1 describes a diffuser plate packing that prevents the packing from bulging by connecting adjacent sides of the packing with a claw.
パッキンは、密着性に優れたゴム製のものが使用されているが、ゴム材料は、劣化しやすいために、長期間使用すると空気室に掛かる空気圧に耐えられなくなり、パッキン部分から空気が漏れるという問題が生じる事があった。そのため、空気が漏れてしまう状態になったパッキンは交換する必要があった。
また、散気装置は、曝気槽の底部に設置されているため、設置作業中に作業者が踏んでしまうことがあり、局所的に強い力がかかると、パッキンに歪みが生じ、散気板が割れてしまうという課題もある（図３（ｂ）参照。）。
Packing made of rubber with excellent adhesion is used, but rubber material is easily deteriorated, so it will not be able to withstand the air pressure applied to the air chamber when used for a long time, and air will leak from the packing part. There was a problem. Therefore, it was necessary to replace the packing in a state where air leaked.
In addition, since the diffuser is installed at the bottom of the aeration tank, an operator may step on it during installation work. If a strong force is applied locally, the packing will be distorted and the diffuser plate There is also a problem of cracking (see FIG. 3B).
本発明者は、上記課題について鋭意検討した結果、散気板の内部に空気室を設けることにより、パッキンで空気室の周壁を構成する必要がなくなるため、パッキンの劣化による空気漏れや、上からの局所的な力により散気板が破損するという問題を解決できることを見出して本発明を完成させた。
具体的には、本発明は、以下の散気装置、その散気装置を用いた散気方法、その散気装置に用いる散気板を提供するものである。
As a result of earnestly examining the above problems, the present inventor eliminates the need to form the peripheral wall of the air chamber with the packing by providing the air chamber inside the diffuser plate. The present invention has been completed by finding that the problem that the diffuser plate is damaged by the local force of can be solved.
Specifically, the present invention provides the following air diffuser, an air diffuser using the air diffuser, and an air diffuser plate used in the air diffuser.
（本願第１発明）
上記課題を解決するための本願第１発明は、散気板と、ホルダと、前記散気板を前記ホルダに固定する固定手段と、を備え、前記散気板は空気室を有し、前記固定手段は前記空気室を貫通しないことを特徴とする散気装置である。
（本願第２発明）
上記課題を解決するための本願第２発明は、前記散気板と前記ホルダの間にシール手段を更に備えたことを特徴とする本願第１発明に記載の散気装置である。
（本願第３発明）
上記課題を解決するための本願第３発明は、前記シール手段は、前記空気室よりも小さい空間を形成することを特徴とする本願第２発明に記載の散気装置である。
（本願第４発明）
上記課題を解決するための本願第４発明は、前記空気室は2以上に分割されていることを特徴とする本願第１〜第３発明に記載の散気装置である。
（本願第５発明）
上記課題を解決するための本願第５発明は、本願第１〜第４発明のいずれかの散気装置を用いることを特徴とする散気方法である。
（本願第６発明）
上記課題を解決するための本願第６発明は、空気が供給される空気室を有し、当該空気室にはホルダに固定するための貫通孔を有さないことを特徴とする散気板である。
(First invention of the present application)
1st invention of this application for solving the said subject is provided with the diffuser plate, the holder, and the fixing means which fixes the said diffuser plate to the said holder, The said diffuser plate has an air chamber, The fixing means is an air diffuser that does not penetrate the air chamber.
(The second invention of the present application)
A second invention of the present application for solving the above problem is the air diffusion device according to the first invention of the present application, further comprising a sealing means between the air diffusion plate and the holder.
(The third invention of the present application)
A third invention of the present application for solving the above-mentioned problems is the air diffuser according to the second invention of the present application, wherein the sealing means forms a space smaller than the air chamber.
(The fourth invention of the present application)
A fourth invention of the present application for solving the above problem is the air diffuser according to the first to third inventions of the present application, wherein the air chamber is divided into two or more.
(The fifth invention of the present application)
A fifth invention of the present application for solving the above problems is an air diffusion method characterized by using any of the air diffusion devices of the first to fourth inventions of the present application.
(The sixth invention of the present application)
A sixth aspect of the present invention for solving the above-described problem is a diffuser plate characterized by having an air chamber to which air is supplied, and the air chamber does not have a through hole for fixing to the holder. is there.
本願第１発明の散気装置によれば、散気板に設けられた空気室により空気を拡散することができるため、パッキンで空気室の周壁を形成する必要がなく、散気板用の特殊な構造のパッキンを使用しなくてよいという効果がある。
また、パッキンにより空気室を形成しないため、パッキンの劣化により空気が漏れるという問題が生じない。さらに、上から局所的な力が掛かった際に、パッキンが歪んで散気板が破損するという恐れもない。
さらには、パッキンの劣化により空気が漏れるという問題が減るため、パッキンを交換する必要もなくなる。
また、散気板をホルダに固定するための固定手段としては、多様な構造があるものの、本発明の散気装置によれば、空気室を貫通しないものを適用することにより、散気板の強度を高めることができる。さらには、固定手段が空気室の外壁に孔を設ける必要がないため、当該孔の構造より空気漏れを生じる恐れもない。
According to the air diffuser of the first invention of the present application, air can be diffused by the air chamber provided in the air diffuser plate. There is an effect that it is not necessary to use a packing having a simple structure.
Further, since no air chamber is formed by the packing, there is no problem that air leaks due to deterioration of the packing. Furthermore, when a local force is applied from above, there is no fear that the packing is distorted and the diffuser plate is damaged.
Furthermore, since the problem of air leakage due to deterioration of the packing is reduced, it is not necessary to replace the packing.
In addition, although there are various structures as fixing means for fixing the diffuser plate to the holder, according to the diffuser device of the present invention, by applying one that does not penetrate the air chamber, Strength can be increased. Furthermore, since it is not necessary for the fixing means to provide a hole in the outer wall of the air chamber, there is no possibility of air leakage from the structure of the hole.
本願第２、３発明の散気装置によれば、散気板の空気室を完全に密閉することができるため、散気板とホルダの間から空気が漏れないという効果がある。 According to the diffuser device of the second and third inventions of the present application, the air chamber of the diffuser plate can be completely sealed, so that there is an effect that air does not leak between the diffuser plate and the holder.
本願第４発明の散気装置によれば、空気室を設けることにより薄くなった散気板の強度を高めることができるため、局所的な力がかかった際に散気板が破損する危険性が低いという効果がある。 According to the air diffuser of the present invention, since the strength of the thin diffuser plate can be increased by providing the air chamber, there is a risk that the diffuser plate will be damaged when a local force is applied. Is effective.
本願第５発明の散気方法によれば、パッキンの劣化による空気漏れがないため、定期的に曝気槽の排水を抜いてパッキンを交換する必要がなくなるという効果がある。 According to the aeration method of the fifth invention of the present application, there is no air leakage due to deterioration of the packing, and therefore, there is an effect that it is not necessary to periodically drain the aeration tank and replace the packing.
本願第６発明の散気板によれば、従来の散気装置の散気板を取り換えることにより、本願発明の散気装置を構成することができる。 According to the diffuser plate of the sixth invention of the present application, the diffuser device of the present invention can be configured by replacing the diffuser plate of the conventional diffuser.
以下の実施例では、本発明の散気装置、その散気装置を用いた散気方法、その散気装置に用いる散気板について説明する。 In the following embodiments, an air diffuser according to the present invention, an air diffuser using the air diffuser, and an air diffuser used in the air diffuser will be described.
図１は、本発明の第１の実施例の散気装置の構成を示す概略説明図である。（ａ）本発明の第１の実施例の散気装置の分解図である。（ｂ）本発明の第１の実施例の散気装置の組立図である。 FIG. 1 is a schematic explanatory diagram showing the configuration of the air diffuser according to the first embodiment of the present invention. (A) It is an exploded view of the air diffusion apparatus of the 1st Example of this invention. (B) It is an assembly drawing of the air diffusion apparatus of the 1st Example of this invention.
本発明の第１の実施例の散気装置１は、内部に空気室２１が形成された散気板２、ホルダ３、パッキン６、抑え金具４及び固定ボルト５を有するものである。
従来の散気装置と同様に、ホルダ３の上に、パッキン６及び散気板２が載置され、抑え金具４及び固定ボルト５で固定されている。
The air diffuser 1 according to the first embodiment of the present invention includes an air diffuser plate 2 in which an air chamber 21 is formed, a holder 3, a packing 6, a holding metal fitting 4, and a fixing bolt 5.
Similarly to the conventional air diffuser, the packing 6 and the air diffuser plate 2 are placed on the holder 3 and fixed by the holding metal fitting 4 and the fixing bolt 5.
（ホルダ）
ホルダ３は、従来の散気装置と同様に、ホルダ空気通路３１及びホルダ空気配管３２と連通した内部空洞を有し、上部に内部空洞を開放する空気供給孔３３を備えている。
これらの材質は、特に限定されるものではないが、例えば、ステンレス鋼のような金属材料や、コンクリートなどが挙げられる。大型の曝気槽の底部にコンクリートでホルダを形成すると、部品が少なくなり、組み付け作業が簡易なものとなるため好ましい。また、金属材料を用いる場合には、耐腐食性の観点からステンレス鋼で形成されたものが好ましい。
(holder)
The holder 3 has an internal cavity communicating with the holder air passage 31 and the holder air pipe 32 as in the conventional air diffuser, and is provided with an air supply hole 33 that opens the internal cavity at the top.
These materials are not particularly limited, and examples thereof include metal materials such as stainless steel and concrete. Forming a holder with concrete at the bottom of a large aeration tank is preferable because it reduces the number of parts and simplifies the assembly work. Moreover, when using a metal material, what was formed with stainless steel from a corrosion-resistant viewpoint is preferable.
（散気板）
散気板２は、空気を通過する微細孔を有した板状部材であり、その内部に空気室２１を有している。空気室２１は、散気板２の下面においてのみ開放し、散気板２の全体に広がるように形成されている。下面の開放部は、散気板全体に広がって形成されてもよいし、ホルダ３の空気供給孔３３と同程度の大きさの穴を形成して内部の空気室２１に連通するように構成してもよい。図１に図示するように、下面の開放部が散気板全体に広がって形成された散気板２は、簡素な形状であるので容易に成形加工することができる。
散気板２は、空気室２１がホルダ３の内部空洞と空気供給孔３３を介して連通するように固定される。その際、空気供給孔３３から流出した空気が散気装置の外に漏れないように、空気供給孔３３の全体を覆うように散気板２を載置する。このようにして、空気供給孔３３から流出した空気は、散気板２の空気室２１内の全体に拡散することができる。
(Air diffuser)
The diffuser plate 2 is a plate-like member having fine holes that allow air to pass therethrough, and has an air chamber 21 therein. The air chamber 21 is formed so as to open only on the lower surface of the diffuser plate 2 and spread over the entire diffuser plate 2. The open portion of the lower surface may be formed so as to spread over the entire diffuser plate, or may be formed so as to communicate with the internal air chamber 21 by forming a hole having the same size as the air supply hole 33 of the holder 3. May be. As shown in FIG. 1, the diffuser plate 2 formed with the open portion of the lower surface spreading over the entire diffuser plate has a simple shape and can be easily molded.
The diffuser plate 2 is fixed so that the air chamber 21 communicates with the internal cavity of the holder 3 through the air supply hole 33. At this time, the diffuser plate 2 is placed so as to cover the entire air supply hole 33 so that the air flowing out from the air supply hole 33 does not leak out of the diffuser. In this way, the air that has flowed out of the air supply hole 33 can diffuse throughout the air chamber 21 of the diffuser plate 2.
散気板２の形状は、どのようなものでもよく、角型、丸型でもよい。角型は、曝気槽の底部に隙間なく配置することができるという利点がある。一方、丸型は、空気供給孔３３から空気室に流入した空気を散気板全体に均等な空気圧で拡散することができるという利点がある。 The shape of the diffuser plate 2 may be any shape, and may be a square shape or a round shape. The square type has the advantage that it can be arranged without a gap at the bottom of the aeration tank. On the other hand, the round shape has an advantage that the air flowing into the air chamber from the air supply hole 33 can be diffused with uniform air pressure throughout the diffuser plate.
散気板２の材質は、特に限定されないが、例えば、ＡＢＳ等の合成樹脂製のものやセラミック製のものがある。
ＡＢＳ等の合成樹脂の散気板は、軽量であり散気板の組み立てが容易であることや、軟らかくて割れにくいという利点がある。
一方、セラミック製の散気板は、排水処理により有機物が微細孔に詰まった際に、焼成して再生することができるという利点がある。
The material of the diffuser plate 2 is not particularly limited, and for example, there is a synthetic resin such as ABS or a ceramic.
A diffuser plate made of synthetic resin such as ABS is advantageous because it is lightweight and easy to assemble the diffuser plate, and is soft and difficult to break.
On the other hand, the ceramic diffuser plate has an advantage that it can be fired and regenerated when the organic matter is clogged in the micropores by the waste water treatment.
（シール手段）
本発明の第１の実施例の散気装置では、ホルダ３と散気板２の間にパッキン６を備えている。このパッキン６は、従来の散気装置１０のように空気室を形成する必要がない。すなわち、パッキン６はホルダ３と散気板２の間から空気が漏れないようにするための単なるシール手段である。
(Sealing means)
In the air diffuser of the first embodiment of the present invention, a packing 6 is provided between the holder 3 and the air diffuser plate 2. The packing 6 does not need to form an air chamber unlike the conventional air diffuser 10. That is, the packing 6 is merely a sealing means for preventing air from leaking between the holder 3 and the diffuser plate 2.
シール手段としては、クロロプレン、ニトリルゴム、フッ素ゴム、ウレタンゴム、シリコーンゴム等のゴム材料で形成されたパッキンのほか、シリコーン系、変性シリコーン系、ポリウレタン系の樹脂等のコーキング剤や、エポキシパテ、ポリエステルパテ、石膏パテ、炭酸カルシウムパテ等の粘土状のパテでもよい。 Sealing means include packing made of rubber materials such as chloroprene, nitrile rubber, fluorine rubber, urethane rubber, silicone rubber, caulking agents such as silicone-based, modified silicone-based and polyurethane-based resins, epoxy putty, polyester Clay-like patties such as putty, gypsum putty and calcium carbonate putty may also be used.
シール手段としてパッキンを設ける場合、パッキンの厚みは、空気漏れを防止することができれば、極めて薄くすることができる。また、その設置位置は、散気板２とホルダ３の空気供給孔３３の態様に合わせて適宜設定することができる。そのため、散気板２の外周に合わせる必要がなく、空気供給孔３３の外周に合わせて設置してもよい。すなわち、散気板、ホルダ及びシール手段により形成される空間は、散気板の空気室より小さい空間であることが好ましい。
このように、本発明の散気装置では、パッキンを薄く、かつ、小さくすることができるため、材料費を格段に抑えることができる。
また、薄く小さいパッキンは、耐久性が高く、交換する頻度が極めて低くなる。そのため、パッキンの交換部品の費用、交換作業費用等も抑えることができる。
When packing is provided as a sealing means, the thickness of the packing can be extremely reduced if air leakage can be prevented. Further, the installation position can be appropriately set in accordance with the mode of the air diffuser plate 2 and the air supply hole 33 of the holder 3. Therefore, it is not necessary to match the outer periphery of the diffuser plate 2, and it may be installed according to the outer periphery of the air supply hole 33. That is, the space formed by the diffuser plate, the holder, and the sealing means is preferably a space smaller than the air chamber of the diffuser plate.
Thus, in the air diffusing device of the present invention, the packing can be made thin and small, so that the material cost can be remarkably suppressed.
Further, the thin and small packing has high durability and the frequency of replacement is extremely low. Therefore, it is possible to reduce the cost of replacement parts for the packing, the cost of replacement work, and the like.
シール手段として、コーキング剤やパテを使用する場合は、散気板２の下面とホルダ３の上面との間に挟むように充填したり、散気板２の下面の周囲を囲むように散気板２とホルダ３の隙間を塞いでもよい。 When a caulking agent or putty is used as the sealing means, it is filled so as to be sandwiched between the lower surface of the diffuser plate 2 and the upper surface of the holder 3 or diffused so as to surround the periphery of the lower surface of the diffuser plate 2. The gap between the plate 2 and the holder 3 may be closed.
なお、本発明の散気装置においてシール手段は必須の構成ではなく、ホルダ３と散気板２の密着性が高く、空気漏れが無い場合には、シール手段を設けなくてもよい。 In the air diffuser of the present invention, the sealing means is not an essential configuration, and when the holder 3 and the air diffusing plate 2 have high adhesion and there is no air leakage, the sealing means may not be provided.
（固定手段）
本発明の実施例１の散気装置では、ホルダ３の上面に散気板２を固定するための固定手段として、２組の押え金具４及び固定ボルト５を備えている。
押え金具４は、固定ボルトが貫通するための孔を有する板状の小片部材であり、散気板２を上面から押さえ付けるものである。固定ボルト５は、ホルダ３とネジ止めして前記押え金具４を固定するものである。
押え金具４及び固定ボルト５の材質は、特に限定されないが、耐腐食性の観点から、ステンレス鋼であることが好ましい。
実施例１の散気装置では、２組の固定手段を角型の散気板の対向する２辺において固定しているが、固定手段の組数は、装置のサイズ等に応じて適宜設定される。
(Fixing means)
In the air diffuser according to the first embodiment of the present invention, two sets of presser fittings 4 and fixing bolts 5 are provided as fixing means for fixing the air diffuser plate 2 to the upper surface of the holder 3.
The presser fitting 4 is a plate-like small piece member having a hole through which the fixing bolt passes, and presses the diffuser plate 2 from the upper surface. The fixing bolt 5 is used to fix the presser fitting 4 by screwing to the holder 3.
The material of the presser fitting 4 and the fixing bolt 5 is not particularly limited, but stainless steel is preferable from the viewpoint of corrosion resistance.
In the air diffusing device of the first embodiment, two sets of fixing means are fixed on the two opposite sides of the rectangular air diffusing plate, but the number of fixing means sets is appropriately set according to the size of the device. The
本発明の固定手段は、空気室２１を貫通しないように固定することを特徴とする。空気室２１にボルト等を貫通して固定すると、その部分の強度が弱くなるため、局所的な力がかかったときに割れやすくなり、本発明の課題を解決することができない。また、空気室を貫通する部分より、空気漏れを生じる恐れもない。 The fixing means of the present invention is characterized by fixing so as not to penetrate the air chamber 21. If a bolt or the like is passed through and fixed to the air chamber 21, the strength of the portion is weakened, so that it is easily broken when a local force is applied, and the problem of the present invention cannot be solved. Further, there is no risk of air leakage from the portion that penetrates the air chamber.
その他の固定手段としては、空気室を貫通しないものであればどのような手段でもよい。例えば、接着剤により固定する手段等が挙げられる。また、ホルダ３の内部空洞の上面にボルトが貫通する孔を設け、散気板２の下面（空気室２１の外周壁の下面）にボルトを直接ネジ止めする手段としてもよい。さらに、ホルダ３と散気板２を一体として成形加工してもよい。 As other fixing means, any means may be used as long as it does not penetrate the air chamber. For example, means for fixing with an adhesive may be used. Alternatively, a hole through which the bolt penetrates may be provided on the upper surface of the internal cavity of the holder 3, and the bolt may be directly screwed to the lower surface of the air diffuser plate 2 (the lower surface of the outer peripheral wall of the air chamber 21). Further, the holder 3 and the diffuser plate 2 may be integrally molded.
図２は、本発明の散気装置に使用する散気板の他の態様を示す概略説明図である。（ａ）本発明の第２の実施例の散気板を示す概略説明図である。（ｂ）本発明の第３の実施例の散気板を示す概略説明図である。 FIG. 2 is a schematic explanatory view showing another embodiment of the air diffuser used in the air diffuser of the present invention. (A) It is a schematic explanatory drawing which shows the diffuser board of the 2nd Example of this invention. (B) It is a schematic explanatory drawing which shows the diffuser board of the 3rd Example of this invention.
第２の実施例の散気板２Ａは、空気室２１を空気室２１ａ及び２１ｂに２分割する分割壁２２が形成されている。分割壁２２を設けることにより、散気板２Ａの強度が高まるため、局所的な力がかかった際にも割れにくいという効果を奏する。 The diffuser plate 2A of the second embodiment is formed with a dividing wall 22 that divides the air chamber 21 into air chambers 21a and 21b. By providing the dividing wall 22, the strength of the diffuser plate 2 </ b> A is increased, so that an effect is obtained that it is difficult to break even when a local force is applied.
散気板２Ａをホルダ３上に設置する際には、空気室２１ａ及び２１ｂの各空気室と、ホルダ３の内部空洞が、空気供給孔３３を介して連通するように固定される。このように設置することにより、空気供給孔３３より流出する空気が各空気室に流れ込み、散気板２Ａの全体に拡散する。 When the diffuser plate 2A is installed on the holder 3, the air chambers of the air chambers 21a and 21b and the internal cavity of the holder 3 are fixed so as to communicate with each other via the air supply hole 33. By installing in this way, the air which flows out from the air supply hole 33 flows into each air chamber, and is spread | diffused to the whole diffuser board 2A.
第３の実施例の散気板２Ｂは、空気室２１を空気室２１ｃ、２１ｄ、２１ｅ及び２１ｆに４分割するように分割壁を形成したものである。分割壁を増加することにより、より強度の高い散気板とすることができる。
また、第２の実施例同様、各空気室とホルダ３の内部空洞は、空気供給孔３３を介して連通する。
The diffuser plate 2B of the third embodiment is formed by forming a dividing wall so that the air chamber 21 is divided into four air chambers 21c, 21d, 21e, and 21f. By increasing the dividing wall, a diffuser plate with higher strength can be obtained.
As in the second embodiment, each air chamber and the internal cavity of the holder 3 communicate with each other through the air supply hole 33.
なお、本発明の第２の実施例及び第３の実施例では、分割された各空気室がホルダ３の内部空洞と直接連通するように構成されているが、分割壁に連通口を設けて各空気室を連通させ、この連通口を介して各空気室とホルダ３の内部空洞を間接的に連通させてもよい。分割壁に設ける連通口は、各空気室を連通すればどのような形状でもよく、例えば、複数の孔を設けた分割壁が挙げられる。また、分割壁の高さが空気室より低く、分割壁の上部又は下部において、隣接する空気室同士が連通している態様としてもよい。 In the second and third embodiments of the present invention, each divided air chamber is configured to communicate directly with the internal cavity of the holder 3, but a communication port is provided in the dividing wall. The air chambers may be communicated, and the air chambers and the internal cavity of the holder 3 may be indirectly communicated with each other through the communication port. The communication port provided in the dividing wall may have any shape as long as the air chambers communicate with each other, and examples thereof include a dividing wall provided with a plurality of holes. Moreover, it is good also as an aspect with which the height of a division wall is lower than an air chamber, and adjacent air chambers are connecting in the upper part or the lower part of a division wall.
本発明の散気装置、散気方法及び散気板は、下水処理場等の有機性汚泥や、食品工場や医薬品工場等の有機性排水の好気性微生物処理槽及びその処理方法に使用することができる。 The aeration apparatus, the aeration method and the aeration plate of the present invention are used for organic sludge such as sewage treatment plants, aerobic microorganism treatment tanks for organic wastewater such as food factories and pharmaceutical factories, and treatment methods thereof. Can do.
また、本発明の散気板は、従来の散気装置を本発明の散気装置に改変するための交換部品として利用することができる。 Moreover, the diffuser plate of the present invention can be used as a replacement part for modifying a conventional diffuser to the diffuser of the present invention.
１，１０ 散気装置、２，２Ａ，２Ｂ，２０ 散気板、２１，２１ａ，２１ｂ，２１ｃ，２１ｄ，２１ｅ，２１ｆ 空気室、２２ 分割壁、３ ホルダ、３１ ホルダ空気通路、３２ ホルダ空気配管、３３ 空気供給孔、４ 抑え金具、５ 固定ボルト、６，６０ パッキン 1, 10 Air diffuser, 2, 2A, 2B, 20 Air diffuser plate, 21, 21a, 21b, 21c, 21d, 21e, 21f Air chamber, 22 Dividing wall, 3 Holder, 31 Holder air passage, 32 Holder air piping 33 Air supply hole, 4 holding bracket, 5 fixing bolt, 6,60 packing
Claims (6)
ホルダと、
前記散気板を前記ホルダに固定する固定手段と、
を備え、
前記散気板は空気室を有し、
前記固定手段は前記空気室を貫通しないことを特徴とする散気装置。 A diffuser,
A holder,
Fixing means for fixing the diffuser plate to the holder;
With
The air diffuser has an air chamber;
The air diffuser characterized in that the fixing means does not penetrate the air chamber.
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| US11525200B2 (en) | 2019-01-31 | 2022-12-13 | Ecolab Usa Inc. | Controller for a rinse water reuse system and methods of use |
| US11572652B2 (en) | 2019-01-31 | 2023-02-07 | Ecolab Usa Inc. | Controlling water levels and detergent concentration in a wash cycle |
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