JPH0352604A - Gas-liquid returning type bubble breaking device - Google Patents
Gas-liquid returning type bubble breaking deviceInfo
- Publication number
- JPH0352604A JPH0352604A JP18700589A JP18700589A JPH0352604A JP H0352604 A JPH0352604 A JP H0352604A JP 18700589 A JP18700589 A JP 18700589A JP 18700589 A JP18700589 A JP 18700589A JP H0352604 A JPH0352604 A JP H0352604A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- liquid
- pipe
- water
- water surface
- 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.)
- Granted
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 82
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 51
- 238000010992 reflux Methods 0.000 claims description 14
- 239000006260 foam Substances 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 abstract 2
- 239000010865 sewage Substances 0.000 description 15
- 239000002518 antifoaming agent Substances 0.000 description 4
- 239000013530 defoamer Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 230000003254 anti-foaming effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Landscapes
- Degasification And Air Bubble Elimination (AREA)
- Removal Of Floating Material (AREA)
Abstract
Description
【発明の詳細な説明】
《産業上の利用分野）
本発明は汚水処理槽の消泡装置に関し、特に気液を還流
せしめてその場で消泡することができる気液還流型消泡
装置に関する。[Detailed Description of the Invention] <<Industrial Application Field> The present invention relates to a defoaming device for a sewage treatment tank, and more particularly to a gas-liquid reflux type defoaming device capable of defoaming on the spot by refluxing gas and liquid. .
《従来の技術》
従来、汚水処理施設における汚水処理槽等の水面に浮遊
する泡は、汚水処理槽等の水面付近に開口せしめた気液
吸込管により吸引し、他の処理施設に配送させた上で処
理を行っていた。《Prior art》 Conventionally, foam floating on the water surface of a sewage treatment tank in a sewage treatment facility was sucked out through a gas-liquid suction pipe opened near the water surface of the sewage treatment tank, etc., and then delivered to another treatment facility. It was processed above.
しかしながら、用地の狭いところでは、このような大規
模な施設を建設することは不可能である上、施設の建設
費用は莫大なものとなるという欠点があった．
他方、汚水処理槽の水面上に散水装置を配してそこから
水面に散水を行うことにより泡を消泡する方式がある。However, the drawback was that it was impossible to construct such a large-scale facility on a narrow site, and the cost of constructing the facility would be enormous. On the other hand, there is a method of defoaming foam by disposing a water sprinkler on the water surface of the sewage treatment tank and sprinkling water onto the water surface from there.
しかしながら、この方式では、気泡の大きな泡に対して
は効果があるが、気泡の小さな泡に対しては効果が少な
く、完全に消泡を行うことは困難であるという欠点があ
った。かかる欠点は消泡剤を使用することにより緩和さ
れるが、消泡剤自体の処理が必要となるため大量に使用
す・ることかできず自ずから消泡効果には限界があった
．《発明が解決しようとする課題｝
そこで、本発明者等は上記の欠点を解決すべく鋭意検討
を重ねた結果、泡と共に吸収した処理水を散水装置に気
液分離器を介して還流せしめることにより消泡剤や他の
施設を必要とすることなく汚水処理槽内の水面に浮遊す
る泡の消泡をその場で容易に行なうことができることを
見出し、本発明に到達した。However, this method has the drawback that although it is effective for large bubbles, it is less effective for small bubbles, making it difficult to completely eliminate the bubbles. These drawbacks can be alleviated by using an antifoaming agent, but since the antifoaming agent itself must be treated, it cannot be used in large quantities, which naturally limits its antifoaming effect. <<Problems to be Solved by the Invention>> Therefore, as a result of intensive studies to solve the above-mentioned drawbacks, the present inventors have decided to make the treated water absorbed with the foam return to the water sprinkler device via a gas-liquid separator. The inventors have discovered that foam floating on the water surface in a sewage treatment tank can be easily defoamed on the spot without requiring a defoaming agent or other facilities, and have arrived at the present invention.
従って、本発明の第１の目的は汚水処理槽の水面に浮遊
する泡を同一処理槽内で消泡することができる気液還流
型消泡装置を提供することにある。Therefore, a first object of the present invention is to provide a gas-liquid reflux type defoaming device that can defoamer the foam floating on the water surface of a sewage treatment tank within the same treatment tank.
本発明の第２の目的は、気泡の小さな泡でも消泡剤を使
用することなく消泡することができる気液還流型消泡装
置を提供することにある。A second object of the present invention is to provide a gas-liquid reflux type defoaming device that can defoam even small bubbles without using a defoaming agent.
本発明の第３の目的は、短時間で効率良く泡を消泡する
ことができる気液還流型消泡装置を提供することにある
．
（課題を解決するための手段〉
本発明の上記の諸目的は、水面下から水面に向けて開口
せしめた気液吸込管、気液配送管、気液配送管から分岐
した空気供給管及び水面上方に配置した散水装置並びに
排気口を有する気液分離器とからなる消泡装置であって
、前記気液吸込管と散水装置とを気液分離器を介して気
液配送管で接続すると共に、水面に浮遊する泡を処理水
と共に気液吸込管から散水装置側へ配送せしめる如く前
記気液配送管に空気供給管を分岐接続してエアリフトポ
ンプを形成せしめたことを特徴とする気液還流型消泡装
置によって達成された。A third object of the present invention is to provide a gas-liquid reflux defoaming device that can defoamer efficiently in a short time. (Means for Solving the Problems) The above-mentioned objects of the present invention are to provide a gas-liquid suction pipe that opens from below the water surface toward the water surface, a gas-liquid delivery pipe, an air supply pipe branched from the gas-liquid delivery pipe, and a water surface. A defoaming device comprising a water sprinkling device disposed above and a gas-liquid separator having an exhaust port, the gas-liquid suction pipe and the water sprinkling device being connected by a gas-liquid delivery pipe via the gas-liquid separator. A gas-liquid reflux characterized in that an air supply pipe is branched and connected to the gas-liquid delivery pipe to form an air lift pump so that the bubbles floating on the water surface are delivered from the gas-liquid suction pipe to the sprinkler side together with the treated water. Achieved by mold defoaming device.
以下本発明の構威を図に従って詳述する。The structure of the present invention will be explained in detail below with reference to the drawings.
第１図は本発明の気液還流型消泡装置の断面図であり、
第２図は第１図のＡ−Ａ線上で切断した断面図である．
図中、符号（１）は、曝気槽等の汚水処理槽（１０）（
以下単に処理槽（１０）とする）の水面付近に水面下か
ら水面に向けて開口せしめた気液吸込管である。従って
、開口部の位置は水面に浮遊する泡を効率良く吸引する
ことができる位置に設定することは当然である．又、上
記開口部の口径は１００００１程度とすることが好まし
い．符号（２）は気液配送管であり、気液を気液吸込管
（１）から後記する気液分離器（３）及び散水装置（４
）へ配送するための気液還流経路を構成する．
符号（３）は、気液分離器であり、特に、一端を散水装
置（４）側に、他端を気液吸込管（１）から配管された
気液配送管（２）側に接続せしめたメインパイプ（９）
と、一端がメインパイプ（９）の上方に接続され他端が
解放された排気口（８）を有する逆Ｕ字型の分岐管（７
）とからなるものが好ましい．散水装置（４）は、公知
のものの中から適宜選択して使用することができる．符
号（５）は、気液配送管（２）に分岐接続した空気供給
管であり、気液配送管（２）内に空気を供給することに
より泡を含む気液を気液吸込管（１）から散水装置へ配
送せしめる如くエアリフトポンプを形戒する。従って、
気液吸込管（１）側に空気が送られることがないように
接続することは当然である．
符号（６）は、気液吸込管（１）が、水位の変化に応じ
て上下に摺動できるように必要に応じて気液吸込管（１
）に設けることができるフロートである．フロートには
水や砂を適宜入れることにより気液吸込管（１）の開口
部の位置を調整することができるように、着脱自在の蓋
を有する開口部を設けておく．気液配送管（２）をでき
るだけ鉛直に保つと共に、泡が気液吸込管（１）に吸入
されるのを妨げないために、フロートは２個とすること
が好ましい。又、泡がフロートに付着することを避ける
ために、フロートとフロートの間隔を４００閣以上とす
ることが好ましく、特に４５０圓程度とすることが好ま
しい。FIG. 1 is a sectional view of the gas-liquid reflux defoaming device of the present invention,
Figure 2 is a sectional view taken along line A-A in Figure 1. In the figure, code (1) indicates a sewage treatment tank (10) such as an aeration tank (
This is a gas-liquid suction pipe opened near the water surface of the treatment tank (10) from below the water surface toward the water surface. Therefore, it is natural to set the opening at a position where bubbles floating on the water surface can be efficiently sucked. Further, it is preferable that the diameter of the opening is approximately 100,001 mm. Reference numeral (2) is a gas-liquid delivery pipe, which transports gas and liquid from the gas-liquid suction pipe (1) to a gas-liquid separator (3) (described later) and a water sprinkler (4).
) to construct a gas-liquid reflux route. Reference numeral (3) is a gas-liquid separator, in particular, one end is connected to the water sprinkler (4) side, and the other end is connected to the gas-liquid delivery pipe (2) piped from the gas-liquid suction pipe (1). main pipe (9)
and an inverted U-shaped branch pipe (7) having an exhaust port (8) with one end connected above the main pipe (9) and the other end open.
) is preferable. The water sprinkler (4) can be appropriately selected from known ones and used. Reference numeral (5) is an air supply pipe branch-connected to the gas-liquid delivery pipe (2), and by supplying air into the gas-liquid delivery pipe (2), gas and liquid containing bubbles are transferred to the gas-liquid suction pipe (1). ) to the sprinkler system. Therefore,
It goes without saying that the connection should be made so that air is not sent to the gas-liquid suction pipe (1) side. Reference numeral (6) indicates that the gas-liquid suction pipe (1) can be moved up and down as needed so that the gas-liquid suction pipe (1) can slide up and down according to changes in the water level.
) is a float that can be installed on the The float is provided with an opening with a removable lid so that the position of the opening of the gas-liquid suction pipe (1) can be adjusted by filling water or sand as appropriate. In order to keep the gas-liquid delivery pipe (2) as vertical as possible and not to prevent bubbles from being sucked into the gas-liquid suction pipe (1), it is preferable to use two floats. Further, in order to prevent bubbles from adhering to the floats, the distance between the floats is preferably 400 mm or more, and particularly preferably about 450 mm.
《作 用｝
気液吸込管（１）より吸引された泡を含む気液はエアリ
フトポンプの作用により気液配送管（２）を通って気液
分離器（３）へ配送される．処理水と共に配送された泡
は気液分離器（３）内で水中から放出され、この瞬間に
破泡する結果、泡中の気体が空気と共に気液分離器（３
）の上方に開口する分岐管（７）を通って排気口（８）
から排気される。気液分離器（３）のメインパイプ（９
）を通過した泡を含まない液体は散水装置（４）へ配送
され汚水処理槽（１０）の水面に散水される．この散水
は、汚水処理槽内の大きな泡を消滅せしめると共に、泡
を気液吸込管（１）の方に集め、吸い込まれ易くする作
用を有する．従って散水装置（４）の位置は、泡が汚水
処理槽（ｌＯ）の周辺に溜まらないように設置すること
が好ましい。《Operation》 The gas-liquid containing bubbles sucked through the gas-liquid suction pipe (1) is delivered to the gas-liquid separator (3) through the gas-liquid delivery pipe (2) by the action of the air lift pump. The bubbles delivered together with the treated water are released from the water in the gas-liquid separator (3), and as a result of the bubbles breaking at this moment, the gas in the bubbles is released together with the air into the gas-liquid separator (3).
) through the branch pipe (7) that opens above the exhaust port (8).
is exhausted from. Main pipe (9) of gas-liquid separator (3)
) The bubble-free liquid is delivered to the water sprinkler (4) and sprinkled on the water surface of the sewage treatment tank (10). This water sprinkling has the effect of eliminating large bubbles in the sewage treatment tank, and also collects the bubbles toward the gas-liquid suction pipe (1), making them easier to be sucked in. Therefore, it is preferable to install the sprinkler device (4) so that foam does not accumulate around the sewage treatment tank (lO).
以上の如く、本発明の気液還流型消泡装置は、汚水処理
槽（１ ０）内で気液を還流せしめるので、汚水処理ｆ
！（１０）内の水位は本装置を使用することによっては
変化せず、固定式の気液吸込管であっても、頻繁にその
開口部の位置を１！整する必要はない．又、一回目の気
液循環で泡が完全に消泡されなくても、この循環は連続
して繰り返されるので短時間で完全に泡を消泡せしめる
ことができる．
《発明の効果｝
以上詳述した如く、本発明の消泡装置は、汚水処理槽内
の気液を還流することによって泡を消泡するので、他の
施設を必要とせず、経済的である。As described above, the gas-liquid reflux type defoaming device of the present invention allows gas and liquid to reflux in the sewage treatment tank (10), so the sewage treatment f
! The water level in (10) does not change by using this device, and even with a fixed gas-liquid suction pipe, the opening position is frequently changed to 1! There is no need to adjust it. Furthermore, even if the bubbles are not completely extinguished in the first gas-liquid circulation, this circulation is repeated continuously, so that the bubbles can be completely extinguished in a short period of time. <<Effects of the Invention>> As detailed above, the defoaming device of the present invention defoams foam by refluxing the gas and liquid in the sewage treatment tank, so it does not require any other facilities and is economical. .
又、泡の消泡は、散水と気液分離器との併用で行うので
、その効果は大であり、更に消泡時間を短縮することが
できる．In addition, defoaming is achieved by using water sprinkling and a gas-liquid separator, which is highly effective and further reduces defoaming time.
第ｌ図は本発明の消泡装置の断面図であり、第２図は第
１図のＡ−Ａ線上で切断した断面図である。
・気液吸込管
・気液配送管
・気液分離器
・散水装置
・空気供給管
・フロート
・分岐管
・排気口
・メインパイプ
・汚水処理槽FIG. 1 is a sectional view of the defoaming device of the present invention, and FIG. 2 is a sectional view taken along line A--A in FIG. - Gas-liquid suction pipe, gas-liquid delivery pipe, gas-liquid separator, water sprinkler, air supply pipe, float, branch pipe, exhaust port, main pipe, sewage treatment tank
Claims (1)
１）、気液配送管（２）、気液配送管（２）から分岐し
た空気供給管及び水面上方に配置した散水装置（４）並
びに排気口（８）を有する気液分離器（３）とからなる
消泡装置であって、前記気液吸込管（１）と散水装置（
４）とを気液分離器（３）を介して気液配送管（２）で
接続すると共に、 水面に浮遊する泡を処理水と共に気液吸込管（１）から
散水装置（４）側へ配送せしめる如く前記気液配送管（
２）に空気供給管（５）を分岐接続してエアリフトポン
プを形成せしめたことを特徴とする気液還流型消泡装置
。 ２）気液分離器（３）が、一端を散水装置（４）側に、
他端を気液配送管（２）側に接続せしめたメインパイプ
（９）と、一端が前記メインパイプ（９）の上方に接続
され、他端が解放された排気口（８）を有する逆Ｕ字型
の分岐管（７）とからなる請求項１に記載の気液還流型
消泡装置。 ３）気液吸込管（１）にフロートを固定し、水位の変化
に応じて上下に摺動する如く、該気液吸込管（１）を気
液配送管（２）に接続せしめた請求項１に記載の気液還
流型消泡装置。[Claims] 1) A gas-liquid suction pipe (
1), a gas-liquid separator (3) having a gas-liquid delivery pipe (2), an air supply pipe branched from the gas-liquid delivery pipe (2), a water sprinkler device (4) arranged above the water surface, and an exhaust port (8). A defoaming device consisting of the gas-liquid suction pipe (1) and a water sprinkler device (
4) via the gas-liquid separator (3) with the gas-liquid delivery pipe (2), and the foam floating on the water surface is transferred together with the treated water from the gas-liquid suction pipe (1) to the water sprinkler (4) side. The gas-liquid delivery pipe (
A gas-liquid reflux type defoaming device characterized in that an air supply pipe (5) is branched and connected to (2) to form an air lift pump. 2) The gas-liquid separator (3) has one end facing the water sprinkler (4) side,
A reverse side having a main pipe (9) whose other end is connected to the gas-liquid distribution pipe (2) side, and an exhaust port (8) whose one end is connected above the main pipe (9) and whose other end is open. The gas-liquid reflux defoaming device according to claim 1, comprising a U-shaped branch pipe (7). 3) A claim in which a float is fixed to the gas-liquid suction pipe (1), and the gas-liquid suction pipe (1) is connected to the gas-liquid distribution pipe (2) so as to slide up and down according to changes in the water level. 1. The gas-liquid reflux defoaming device according to 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1187005A JPH082405B2 (en) | 1989-07-19 | 1989-07-19 | Gas-liquid reflux type defoaming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1187005A JPH082405B2 (en) | 1989-07-19 | 1989-07-19 | Gas-liquid reflux type defoaming device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0352604A true JPH0352604A (en) | 1991-03-06 |
| JPH082405B2 JPH082405B2 (en) | 1996-01-17 |
Family
ID=16198538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1187005A Expired - Fee Related JPH082405B2 (en) | 1989-07-19 | 1989-07-19 | Gas-liquid reflux type defoaming device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH082405B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115784568A (en) * | 2022-12-01 | 2023-03-14 | 湖南洪康新材料科技有限公司 | Glass bubbling device and control method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59109289A (en) * | 1983-11-28 | 1984-06-23 | Toshiba Corp | Waste water treating device |
| JPS62125897A (en) * | 1985-11-26 | 1987-06-08 | Nippon Kentetsu Co Ltd | Defoaming method for activated sludge |
-
1989
- 1989-07-19 JP JP1187005A patent/JPH082405B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59109289A (en) * | 1983-11-28 | 1984-06-23 | Toshiba Corp | Waste water treating device |
| JPS62125897A (en) * | 1985-11-26 | 1987-06-08 | Nippon Kentetsu Co Ltd | Defoaming method for activated sludge |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115784568A (en) * | 2022-12-01 | 2023-03-14 | 湖南洪康新材料科技有限公司 | Glass bubbling device and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH082405B2 (en) | 1996-01-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |