JPH0131357Y2 - - Google Patents
Info
- Publication number
- JPH0131357Y2 JPH0131357Y2 JP1984053560U JP5356084U JPH0131357Y2 JP H0131357 Y2 JPH0131357 Y2 JP H0131357Y2 JP 1984053560 U JP1984053560 U JP 1984053560U JP 5356084 U JP5356084 U JP 5356084U JP H0131357 Y2 JPH0131357 Y2 JP H0131357Y2
- Authority
- JP
- Japan
- Prior art keywords
- diffuser plate
- hole
- plate support
- gas
- gas conduit
- 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
Links
- 238000004891 communication Methods 0.000 claims description 10
- 239000007789 gas Substances 0.000 description 41
- 239000000463 material Substances 0.000 description 6
- 238000012856 packing Methods 0.000 description 6
- 238000005273 aeration Methods 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 239000010802 sludge Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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
【考案の詳細な説明】
本考案は汚水、廃水等を生物学的に処理する活
性汚泥法の曝気槽等に用いる散気装置の改良に関
するものである。[Detailed Description of the Invention] The present invention relates to an improvement of an aeration device used in an aeration tank of an activated sludge method for biologically treating sewage, wastewater, etc.
省エネルギー型の装置を使用することがごく当
然となつた今日、活性汚泥法の曝気槽等に設置さ
れている従来の散気板や散気筒に比べて酸素溶解
効率が高く、電力消費量が少なく、さらには活性
汚泥フロツクの破壊が少ない、微細気泡を発生す
る多数の微細孔を有するデイスク型の散気装置が
注目されている。 Nowadays, it has become natural to use energy-saving equipment, and compared to the conventional diffuser plates and cylinders installed in the aeration tanks of the activated sludge method, oxygen dissolution efficiency is higher and power consumption is lower. Moreover, a disk-type air diffuser, which has a large number of micropores that generate microbubbles and which causes less destruction of activated sludge flocs, is attracting attention.
従来のデイスク型の散気装置の形状は例えば第
１図に示すように気体導管１の上面に孔２を設
け、当該孔２上に散気板支持体４を載置して溶接
または接着により固定し、さらに当該散気板支持
体４の上にパツキング９を介して散気板３を載置
し連通孔６を穿つたオリフイスボルト１０によつ
て散気板３を散気板支持体４に螺着して気体室５
を形成し、気体導管１に供給した気体を孔２、連
通孔６、気体室５を介して散気板３より吐出させ
るもの、あるいは第２図に示すように気体導管１
の上面に孔２を、下面に孔２′を設け、当該孔２
上にその中心部に連通孔６を有する散気板支持体
４を載置し、ツバ１１を有するロツドボルト１２
を連通孔６、孔２′に貫通しツバ１１とナツト１
３により散気板支持体４を気体導管１に固定する
とともに、ロツドボルト１２の上部でナツト１
３′により散気板３をパツキング９を介して散気
板支持体４上に固定し気体室５を形成し、気体導
管１に供給した気体を孔２、連通孔６、気体室５
を介して散気板３より吐出させるもの等がある。
しかしながら第１図に示した散気装置は気体導管
１と散気板支持体４を接着あるいは溶接するため
に同じ材質の材料を使用しなければならず、さら
にはオリフイスボルト１０に連通孔６を穿つため
加工費が高価になるという欠点を有しており、ま
た第２図に示した散気装置では気体導管１のナツ
ト１３による押圧部に集中荷重がかかるため気体
導管１は比較的機械強度が低いPVC等の材質の
ものを使用できないという欠点を有している。 The shape of a conventional disk-type air diffuser is, for example, as shown in FIG. Furthermore, the diffuser plate 3 is placed on the diffuser plate support 4 through the packing 9, and the diffuser plate 3 is attached to the diffuser plate support 4 by means of orifice bolts 10 with communication holes 6 bored therein. Gas chamber 5
, and the gas supplied to the gas conduit 1 is discharged from the diffuser plate 3 through the hole 2, the communication hole 6, and the gas chamber 5, or the gas conduit 1 as shown in FIG.
A hole 2 is provided on the top surface and a hole 2' is provided on the bottom surface of the hole 2.
A diffuser plate support 4 having a communication hole 6 in the center thereof is placed on top of the rod bolt 12 having a collar 11.
pass through the communicating hole 6 and hole 2', and connect the collar 11 and nut 1.
3 to fix the diffuser plate support 4 to the gas conduit 1, and tighten the nut 1 at the top of the rod bolt 12.
3' fixes the diffuser plate 3 on the diffuser plate support 4 through the packing 9 to form a gas chamber 5, and the gas supplied to the gas conduit 1 is passed through the hole 2, the communication hole 6, and the gas chamber 5.
There is a method in which the air is discharged from the air diffuser plate 3 through the air diffuser plate 3.
However, in the air diffuser shown in FIG. It has the disadvantage that the processing cost is high because it is drilled, and in addition, in the aeration device shown in FIG. It has the disadvantage that it cannot use materials such as PVC, which has a low carbon content.
本考案は上記欠点に鑑みてなされたもので、気
体導管１と散気板支持体４の材質が異なる場合で
も、気体導管１に比較的機械強度が低いPVC等
の材質のものを使用した場合でも簡単に確実に散
気板支持体４を気体導管１に固定することができ
る散気装置を提供することを目的とするものであ
り、略水平に設置した気体導管１の上面に孔２を
設けるとともに当該孔２上に、多孔質の散気板３
を上部に有する散気板支持体４を載置し、散気板
３と散気板支持体４とによつて形成される気体室
５と気体導管１の孔２とを連通孔６により連通し
てなる散気装置において、散気板支持体４の下部
に、短管２２を連通するとともに、当該短管２２
に気体導管１の上面に密着する固定板７を設け、
前記短管２２を気体導管１の孔２に挿着して固定
板７と気体導管１とをバンド８により着脱自在に
固定することを特徴とする散気装置に関するもの
である。 The present invention was made in view of the above drawbacks, and even if the materials of the gas conduit 1 and the diffuser plate support 4 are different, if the gas conduit 1 is made of a material such as PVC that has relatively low mechanical strength. However, the purpose is to provide an air diffuser that can easily and reliably fix the air diffuser plate support 4 to the gas conduit 1. A porous air diffuser plate 3 is provided above the hole 2.
The air diffuser plate support 4 having the air diffuser plate support 4 on the upper side is placed, and the gas chamber 5 formed by the air diffuser plate 3 and the air diffuser plate support 4 is communicated with the hole 2 of the gas conduit 1 through the communication hole 6. In the air diffuser, a short pipe 22 is connected to the lower part of the air diffuser plate support 4, and the short pipe 22
A fixing plate 7 is provided in close contact with the upper surface of the gas conduit 1,
This invention relates to an air diffuser characterized in that the short tube 22 is inserted into the hole 2 of the gas conduit 1 and the fixing plate 7 and the gas conduit 1 are removably fixed by a band 8.
以下本考案を図面に基づいて説明する。 The present invention will be explained below based on the drawings.
第３図は本考案の実施態様の例を示す正面説明
図、第４図は第３図のＡ−Ａ断面を示す縦断面説
明図であり、曝気槽等の底面に略水平に設置した
気体導管１の上面に孔２を設け、当該孔２内に散
気板支持体４の下部に連通した短管２２を挿着す
る。なお当該短管２２には気体導管１の上面に密
着する形状の固定板７が付設されており、孔２の
孔径とほぼ同じ大きさの孔を有するパツキング１
４を短管２２に通して、通常２本のバンド８を固
定板７および気体導管１に周設しバンド８に付設
したボルト・ナツト１５を締め込むことにより固
定板７を気体導管１に押圧して散気板支持体４を
気体導管１に着脱自在に固定する。また散気板支
持体４の上部にはＯリング１６を介して微細気泡
を発生する微細孔を多数有するデイスク型の散気
板３を載置し、パツキング１７および座金１８を
挿嵌したボルト１９を散気板３の中心部に穿つた
孔から差し込み散気板支持体４の中心部に埋め込
んだナツト２０に螺着することにより散気板３を
散気板支持体４に固定する。また散気板支持体４
には、散気板３と散気板支持体４とによつて形成
される気体室５と気体導管１とを連通する通常２
〜４個の比較的小さな連通孔６を設ける。なお連
通孔６の上部に連通孔６より吐出する気体を気体
室５内に均一に分散するためのバツフル板２１を
設けるとよい。また固定板７は孔２を覆い尽くし
かつバンド８が周設できる程度の大きさを有する
ことが必要であり、望ましくは散気板支持体４の
安定のために気体導管１の半分程度を覆う大きさ
であるとよい。また気体導管１と散気板支持体４
の固定板７を締結するのにバンド８を使用するこ
とにより、気体導管１および固定板７の周方向全
体に締結圧力が分散されるので、気体導管１には
比較的機械強度の低いPVC等の材質のものも使
用できる。当該バンド８には第３図で示したボル
ト・ナツト１５で締結するもの以外にバンドの接
線方向に取り付けたスクリユーボルトを回転する
ことにより締め付けを行う厚肉帯状バンド（通称
ジユビリーバンド）、あるはワイヤーバンド等が
使用できる。 FIG. 3 is a front explanatory view showing an example of the embodiment of the present invention, and FIG. 4 is a longitudinal cross-sectional view showing the A-A cross section in FIG. A hole 2 is provided in the upper surface of the conduit 1, and a short tube 22 communicating with the lower part of the diffuser plate support 4 is inserted into the hole 2. Note that the short pipe 22 is attached with a fixing plate 7 having a shape that tightly fits on the upper surface of the gas conduit 1, and a packing 1 having a hole approximately the same size as the hole 2 is attached.
4 through the short pipe 22, usually two bands 8 are placed around the fixing plate 7 and the gas conduit 1, and the fixing plate 7 is pressed against the gas conduit 1 by tightening the bolts and nuts 15 attached to the bands 8. Then, the diffuser plate support 4 is removably fixed to the gas conduit 1. Further, on the upper part of the air diffuser plate support 4, a disc-shaped air diffuser plate 3 having a large number of micropores for generating micro air bubbles is placed via an O-ring 16, and a bolt 19 into which a packing 17 and a washer 18 are fitted is mounted. The diffuser plate 3 is fixed to the diffuser plate support 4 by inserting it through a hole drilled in the center of the diffuser plate 3 and screwing it onto a nut 20 embedded in the center of the diffuser plate support 4. Also, the diffuser plate support 4
In this case, there is usually a gas chamber 5 formed by the diffuser plate 3 and the diffuser plate support 4, which communicates with the gas conduit 1.
~4 relatively small communicating holes 6 are provided. It is preferable to provide a baffle plate 21 above the communication hole 6 to uniformly disperse the gas discharged from the communication hole 6 into the gas chamber 5. Furthermore, the fixing plate 7 needs to be large enough to completely cover the hole 2 and allow the band 8 to be placed around it, and preferably covers about half of the gas conduit 1 in order to stabilize the diffuser plate support 4. The size is good. In addition, the gas conduit 1 and the diffuser plate support 4
By using the band 8 to fasten the fixing plate 7, the fastening pressure is distributed over the entire circumferential direction of the gas conduit 1 and the fixing plate 7. Materials of can also be used. In addition to the bolts and nuts 15 shown in FIG. 3, the band 8 includes a thick band-like band (commonly known as a jubilee band) which is tightened by rotating a screw bolt attached in the tangential direction of the band. Or you can use a wire band, etc.
次に本考案装置の機能を説明する。例えば本考
案装置を活性汚泥法の曝気槽に設置した場合、ブ
ロワー等により気体導管１に供給された気体（空
気、酸素等）は孔２、短管２２、連通孔６を通
り、気体室５に入る。当該気体室５に供給された
気体は散気板３の微細孔を通り、微細気泡となつ
て液中に分散し上昇する。この微細気泡の液中へ
の分散上昇により、微細気泡中の酸素が液側に移
動し、液中の溶存酸素濃度が高まる。 Next, the functions of the device of the present invention will be explained. For example, when the device of the present invention is installed in an aeration tank for the activated sludge method, gas (air, oxygen, etc.) supplied to the gas conduit 1 by a blower or the like passes through the hole 2, the short pipe 22, and the communication hole 6, and then passes through the gas chamber 5. to go into. The gas supplied to the gas chamber 5 passes through the fine holes of the air diffuser plate 3, becomes fine bubbles, is dispersed in the liquid, and rises. Due to the increased dispersion of the fine bubbles into the liquid, the oxygen in the fine bubbles moves to the liquid side, increasing the dissolved oxygen concentration in the liquid.
当該散気装置を長時間使用していると散気板３
が目詰まりを起こしたり、破損したり、あるいは
散気板支持体４が破損したりすることがある。そ
のような場合には散気板３はボルト１９を外すこ
とにより散気板支持体４から取り外し、洗浄ある
いは交換を行い、散気板支持体４はバンド８を緩
めることにより気体導管１から取り外し、修理あ
るいは交換を行う。 If the air diffuser is used for a long time, the air diffuser plate 3
may become clogged or damaged, or the diffuser plate support 4 may be damaged. In such a case, the diffuser plate 3 can be removed from the diffuser plate support 4 by removing the bolts 19 and cleaned or replaced, and the diffuser plate support 4 can be removed from the gas conduit 1 by loosening the band 8. , repair or replacement.
以上説明したように本考案装置は気体導管と散
気板支持体をバンドで締結する構造のものとする
ことにより、気体導管と散気板支持体の材質が異
なる場合でも、あるいは気体導管に比較的機械強
度が低い材質を使用する場合でも簡単に確実に散
気板支持体を気体導管に固定することができ、ま
た散気板支持体が破損した場合でも簡単に取り外
すことができるので修理あるいは交換を容易に行
うことができるものである。 As explained above, the device of the present invention has a structure in which the gas conduit and the diffuser plate support are fastened together with a band, so that even when the materials of the gas conduit and the diffuser plate support are different, or when the gas conduit and the diffuser plate support are Even when using materials with low mechanical strength, the diffuser plate support can be easily and securely fixed to the gas conduit, and even if the diffuser plate support is damaged, it can be easily removed, making it easy to repair or repair. It can be easily replaced.
第１図および第２図はいずれも従来の散気装置
の例を示す縦断面説明図、第３図および第４図は
いずれも本考案の散気装置の実施態様の例を示す
ものであり、第３図はその正面説明図、第４図は
第３図のＡ−Ａ断面を示す縦断面説明図である。
１……気体導管、２……孔、３……散気板、４
……散気板支持体、５……気体室、６……連通
孔、７……固定板、８……バンド、９……パツキ
ング、１０……オリフイスボルト、１１……ツ
バ、１２……ロツドボルト、１３……ナツト、１
４……パツキング、１５……ボルト・ナツト、１
６……Ｏリング、１７……パツキング、１８……
座金、１９……ボルト、２０……ナツト、２１…
…バツフル板、２２……短管。
1 and 2 are longitudinal cross-sectional explanatory views showing examples of conventional air diffusers, and FIGS. 3 and 4 both show examples of embodiments of the air diffusers of the present invention. , FIG. 3 is an explanatory front view thereof, and FIG. 4 is an explanatory longitudinal sectional view taken along the line AA in FIG. 3. 1... Gas conduit, 2... Hole, 3... Diffuser plate, 4
... Diffusion plate support, 5 ... Gas chamber, 6 ... Communication hole, 7 ... Fixing plate, 8 ... Band, 9 ... Packing, 10 ... Orifice bolt, 11 ... Collar, 12 ... Rodvolt, 13...Natsuto, 1
4...Patsuking, 15...Boruto Natsuto, 1
6...O-ring, 17...Packing, 18...
Washer, 19... Bolt, 20... Nut, 21...
...Batsuful plate, 22...Short tube.
Claims (1)
けるとともに当該孔２上に、多孔質の散気板３を
上部に有する散気板支持体４を載置し、散気板３
と散気板支持体４とによつて形成される気体室５
と気体導管１の孔２とを連通孔６により連通して
なる散気装置において、散気板支持体４の下部に
短管２２を連通するとともに、当該短管２２に気
体導管１の上面に密着する固定板７を設け、前記
短管２２を気体導管１の孔２に挿着して固定板７
と気体導管１とをバンド８により着脱自在に固定
することを特徴とする散気装置。 A hole 2 is provided on the upper surface of the gas conduit 1 which is installed approximately horizontally, and a diffuser plate support 4 having a porous diffuser plate 3 on top is placed on the hole 2.
and a gas chamber 5 formed by the diffuser plate support 4
In the air diffuser in which the gas pipe 1 and the hole 2 of the gas pipe 1 are connected to each other through the communication hole 6, a short pipe 22 is connected to the lower part of the diffuser plate support 4, and a short pipe 22 is connected to the upper surface of the gas pipe 1. A fixing plate 7 that fits tightly is provided, and the short pipe 22 is inserted into the hole 2 of the gas conduit 1, and the fixing plate 7 is installed.
and a gas conduit 1 are detachably fixed by a band 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984053560U JPS60168599U (en) | 1984-04-13 | 1984-04-13 | air diffuser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984053560U JPS60168599U (en) | 1984-04-13 | 1984-04-13 | air diffuser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60168599U JPS60168599U (en) | 1985-11-08 |
| JPH0131357Y2 true JPH0131357Y2 (en) | 1989-09-26 |
Family
ID=30574542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984053560U Granted JPS60168599U (en) | 1984-04-13 | 1984-04-13 | air diffuser |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60168599U (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5062138B2 (en) * | 2007-12-27 | 2012-10-31 | Ｊｆｅエンジニアリング株式会社 | Cleaning method for air diffuser |
| JP5336136B2 (en) * | 2008-09-24 | 2013-11-06 | 株式会社ダイヘン | Automatic voltage regulator for power distribution |
| JP5284223B2 (en) * | 2009-09-01 | 2013-09-11 | ダイセン・メンブレン・システムズ株式会社 | Air diffuser holder and metal band fixture used to fix it |
-
1984
- 1984-04-13 JP JP1984053560U patent/JPS60168599U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60168599U (en) | 1985-11-08 |
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