JPH0728959Y2 - Air diffuser - Google Patents
Air diffuserInfo
- Publication number
- JPH0728959Y2 JPH0728959Y2 JP1990089190U JP8919090U JPH0728959Y2 JP H0728959 Y2 JPH0728959 Y2 JP H0728959Y2 JP 1990089190 U JP1990089190 U JP 1990089190U JP 8919090 U JP8919090 U JP 8919090U JP H0728959 Y2 JPH0728959 Y2 JP H0728959Y2
- Authority
- JP
- Japan
- Prior art keywords
- casing
- submersible pump
- water
- bubbles
- air
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 32
- 238000004891 communication Methods 0.000 claims description 2
- 239000006185 dispersion Substances 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin 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)
- Physical Water Treatments (AREA)
Description
【考案の詳細な説明】 ［産業上の利用分野］ 本考案は、排水処理における浮上分離処理法における気
泡発生装置に使用する散気装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an air diffuser used for a bubble generator in a floating separation treatment method in wastewater treatment.
［従来の技術］ 従来の散気装置としては、セラミック製、合成樹脂製の
多孔性散気板あるいは多孔性散気管に圧搾空気を送り込
む方法や、細い円管を流れる水流に空気を混合させる方
法が簡単な手段として用いられている。[Prior Art] As a conventional air diffuser, a method of sending compressed air to a ceramic or synthetic resin porous air diffusing plate or a porous air diffusing tube, or a method of mixing air with a water flow flowing through a thin circular tube Is used as a simple means.
［考案が解決しようとする課題］ 上記従来法における前者では、ある程度微細な気泡を発
生させることが出来るが、気泡の分散が多孔性散気板あ
るいは多孔性散気管の上部のみに限定されるので、気泡
の分散効率が低く、かつ廃水中で使用した場合のフィル
ターの目詰りによる効率の低下の問題があった。また、
後者では円管から高速で吐き出されることで分散効率は
向上するが、気泡の微細化が十分でない等の問題があっ
た。[Problems to be Solved by the Invention] In the former case of the above conventional method, fine bubbles can be generated to some extent, but the dispersion of the bubbles is limited to only the upper part of the porous diffuser plate or the porous diffuser tube. However, there is a problem that the efficiency of air bubble dispersion is low and the efficiency is lowered due to clogging of the filter when used in waste water. Also,
In the latter case, the efficiency of dispersion is improved by discharging at high speed from the circular tube, but there were problems such as insufficient micronization of bubbles.
本考案は、水槽内に設置した水中ポンプの羽根車による
強力な撹拌操作を利用し、水中ポンプの水の吐出口に細
いノズルを設けることで、水中ポンプのケーシング内に
導入した圧搾空気が羽根車で破壊され、その破壊された
気泡が、さらにケーシングに連通する吐出口に設けたノ
ズルによって高速で水中に分散されるようにして微細気
泡を得る散気装置を提供することを目的としたものであ
る。The present invention utilizes the powerful stirring operation by the impeller of the submersible pump installed in the water tank, and by providing a thin nozzle at the water outlet of the submersible pump, the compressed air introduced into the casing of the submersible pump is An object of the present invention is to provide an air diffuser which is destroyed by a car, and the destroyed bubbles are further dispersed at high speed in water by a nozzle provided at a discharge port communicating with a casing to obtain fine bubbles. Is.
［課題を解決するための手段］ 本考案に係る散気装置は、排水を入れた水槽内に水中ポ
ンプを設置し、該水中ポンプの水取入れ口を有するケー
シングに気泡供給口を設け、該気泡供給口に、外部から
圧搾空気を流量調節バルブを介して定量的に供給する供
給管を接続し、前記気泡供給口に導入された圧搾空気を
水中ポンプのケーシング内で細分化する羽根車をケーシ
ング内に備え、該ケーシング内で細分化した気泡が水と
共に吐出される吐出口を前記ケーシングに連通して一か
所設け、前記吐出口に該吐出口より小径のノズルを設け
たものである。[Means for Solving the Problems] An air diffuser according to the present invention comprises a submersible pump installed in a water tank containing drainage, and a casing having a water intake port of the submersible pump provided with a bubble supply port. A supply pipe for quantitatively supplying compressed air from the outside through a flow rate control valve is connected to the supply port, and the impeller for subdividing the compressed air introduced into the bubble supply port in the casing of the submersible pump is casing. A discharge port provided inside the casing for discharging the air bubbles subdivided in the casing together with water is provided at one place in communication with the casing, and the discharge port is provided with a nozzle having a diameter smaller than that of the discharge port.
［作用］ 本考案は、排水を入れた水槽内に水中ポンプを設置す
る。コンプレッサー等の圧搾空気供給源から圧搾空気
を、流量調節バルブおよび供給管を介して定量的に水中
ポンプのケーシング内に供給する。次いで、水と一緒に
ケーシング内に吸引導入された気泡を、水中ポンプの水
取入れ口を有するケーシング内の羽根車の高速回転によ
る強力な撹拌力を利用して細かく破壊して微細な気泡と
する。この微細化された気泡を吐出口に設けた小径のノ
ズルから高速で水中に噴出させると、生成した微細な気
泡は速やかに液中に分散される。微細な気泡を水槽内の
排水粒子に付着させて効果的に該排水粒子を浮上分離処
理させることができる。[Operation] The present invention installs a submersible pump in a water tank containing drainage. Compressed air from a compressed air supply source such as a compressor is quantitatively supplied into the casing of the submersible pump through a flow rate control valve and a supply pipe. Next, the bubbles sucked and introduced into the casing together with water are finely broken down into fine bubbles by utilizing the strong stirring force of the impeller in the casing having the water intake of the submersible pump at high speed. . When these microscopic bubbles are jetted into water at a high speed from a small-diameter nozzle provided at the discharge port, the generated microscopic bubbles are promptly dispersed in the liquid. By attaching fine bubbles to the waste water particles in the water tank, the waste water particles can be effectively floated and separated.
［実施例］ 以下、本考案の一実施例を図面に基いて具体的に説明す
る。[Embodiment] An embodiment of the present invention will be specifically described below with reference to the drawings.
第１図は本考案の一実施例を示す散気装置の概略説明図
である。第２図は本考案に係る水中ポンプの概略断面図
である。FIG. 1 is a schematic explanatory view of an air diffuser showing an embodiment of the present invention. FIG. 2 is a schematic sectional view of the submersible pump according to the present invention.
１は水中ポンプで、電動機２と、該電動機２により回転
する羽根車３と、該羽根車３を囲む水取入れ口４を有す
るケーシング５と、該ケーシングに連通して水と気泡を
吐出させる吐出口６を備えている。また、ケーシング５
には気泡供給口７を設ける。この気泡供給口７に、コン
プレッサー８等の圧搾空気供給源から圧搾空気を供給す
る供給管９を接続する。供給管９の途中には流量調節バ
ルブ10を設け、定量的に圧搾空気を水中ポンプ１のケー
シング５内に供給するようにしている。このように水中
ポンプ１のケーシング５内に導入する圧搾空気の導入量
を制限することとしたのは、．過剰の空気が水中ポン
プ１のケーシング５内に入り込むと羽根車３が空転して
しまうことになり、また、．微細気泡の存在密度が高
くなり過ぎると、気泡同士が再結合してしまうのでこれ
を防止するためである。A submersible pump 1 includes an electric motor 2, an impeller 3 rotated by the electric motor 2, a casing 5 having a water intake 4 surrounding the impeller 3, and a discharge communicating with the casing to discharge water and bubbles. An outlet 6 is provided. Also, the casing 5
An air bubble supply port 7 is provided in this. A supply pipe 9 for supplying compressed air from a compressed air supply source such as a compressor 8 is connected to the bubble supply port 7. A flow rate control valve 10 is provided in the middle of the supply pipe 9 to quantitatively supply compressed air into the casing 5 of the submersible pump 1. In this way, the reason for limiting the amount of compressed air introduced into the casing 5 of the submersible pump 1 is as follows. If excess air enters the casing 5 of the submersible pump 1, the impeller 3 will spin idle. This is to prevent the bubbles from being recombined with each other if the density of the fine bubbles becomes too high.
そして、吐出口６には該吐出口６より径の小さいノズル
11を設け、該小径のノズル11から微細気泡が水と共に高
速で分散されるようにする。なお、圧搾空気の圧力につ
いては、水中ポンプが設置された水深での水圧に抗して
所定の量の空気を注入できる圧力であればよい。A nozzle having a smaller diameter than the discharge port 6 is provided in the discharge port 6.
11 is provided so that fine bubbles can be dispersed at a high speed together with water from the small-diameter nozzle 11. The compressed air may have any pressure as long as it can inject a predetermined amount of air against the water pressure at the water depth where the submersible pump is installed.
第３図は本考案に係る散気装置の運転時を示す概略説明
図である。FIG. 3 is a schematic explanatory view showing an operation of the air diffuser according to the present invention.
コンプレッサー８を作動させ、圧搾空気を、流量調節バ
ルブ10で流量調整して定量的に供給管９から水中ポンプ
１のケーシング５内に供給する。一方、水中ポンプ１の
水取入れ口４を有するケーシング５内の羽根車３は電動
機２により高速回転し、該羽根車３により強力な撹拌力
を利用して水と一緒にケーシング５内に吸引導入された
気泡を細かく破壊して微細な気泡とする。この微細気泡
12は吐出口６に設けた小径のノズル11から高速で水中に
噴出し、生成した微細気泡12は速やかに液中に分散する
こととなる。The compressor 8 is operated, and the compressed air is quantitatively supplied to the casing 5 of the submersible pump 1 through the supply pipe 9 with its flow rate adjusted by the flow rate control valve 10. On the other hand, the impeller 3 in the casing 5 having the water intake port 4 of the submersible pump 1 is rotated at a high speed by the electric motor 2, and the impeller 3 sucks and introduces it into the casing 5 together with water by using a strong stirring force. The formed bubbles are finely broken into fine bubbles. This fine bubble
12 jets into the water at a high speed from a small-diameter nozzle 11 provided in the discharge port 6, and the generated fine bubbles 12 are quickly dispersed in the liquid.
次に、本考案による散気装置を150リットルの水を入れ
た透明な水槽13に設置し、気泡微細化助剤として界面活
性剤750mgを添加し、コンプレッサー８からの空気供給
量を流量調整バルブ10により調節し2000cc/minとして散
気を行なった。この時の水中ポンプ１の吐出口６の直径
は50mmのものとし、該吐出口６に異径ソケット等の小径
のノズル11を設け、該ノズル径を12.5mmとすることによ
り、吐出流速は小径のノズル11を設ける前の0.47m/sec
から小径のノズル11を設けた後の流速が7.5m/secと高速
になるようにした。散気操作開始後10秒後には水槽内は
気泡が均一に分散し、5cm先が見えない状態となった。
なお、小径のノズル11を設けない吐出口６のままで同様
の散気操作を行なった場合は、水槽13内の気泡分散状態
が上記と同様になるまで約３分を要した。Next, the air diffuser according to the present invention is installed in a transparent water tank 13 containing 150 liters of water, 750 mg of a surfactant is added as an air bubble refining aid, and an air supply amount from the compressor 8 is adjusted by a flow control valve. It was adjusted by 10 and aeration was performed at 2000 cc / min. At this time, the discharge port 6 of the submersible pump 1 has a diameter of 50 mm, and the discharge port 6 is provided with a small-diameter nozzle 11 such as a socket with a different diameter. 0.47m / sec before installing the nozzle 11
The flow velocity after providing the small-diameter nozzle 11 was 7.5 m / sec. After 10 seconds from the start of the air diffusing operation, the air bubbles were uniformly dispersed in the water tank, and it became impossible to see the point 5 cm ahead.
When the same diffusing operation was performed with the discharge port 6 without the small-diameter nozzle 11 provided, it took about 3 minutes until the bubble dispersion state in the water tank 13 became similar to the above.
［考案の効果］ 本考案は、排水を入れた水槽内に設置した水中ポンプの
ケーシング内に導入された圧搾空気が、ケーシング内の
羽根車により連続的に破壊されて微細な気泡となる。さ
らにケーシングに連通した吐出口を一か所設け、該吐出
口に設けた小径のノズルより前記ケーシング内の羽根車
により連続的に破壊された微細な気泡を高速で噴出させ
ることができるので、流速の高速化と、この高速水流に
よる乱流で気泡の二次的な破壊を促し、微細な気泡を速
やかに液中に分散させることが可能である。[Effect of the Invention] In the present invention, the compressed air introduced into the casing of the submersible pump installed in the water tank containing the drainage is continuously broken by the impeller in the casing to form fine bubbles. Further, a discharge port communicating with the casing is provided at one place, and fine air bubbles continuously destroyed by the impeller inside the casing can be jetted at high speed from a small diameter nozzle provided at the discharge port. The turbulent flow due to the high-speed water flow promotes secondary destruction of bubbles, and fine bubbles can be promptly dispersed in the liquid.
したがって、本案装置の使用によって水槽内の排水処理
における浮上分離処理は、微細な気泡を排水中の粒子に
付着させて効果的に浮上分離させることができる。Therefore, by using the device of the present invention, in the floating separation treatment in the wastewater treatment in the water tank, it is possible to effectively attach and separate fine bubbles to the particles in the wastewater so that the fine particles are floated and separated.
また、排水を入れた水槽内に設置した水中ポンプのケー
シング内に導入する圧搾空気の導入量は、流量調節バル
ブで流量調整して定量的に供給管から水中ポンプのケー
シング内に供給することとしたので、過剰の空気が水中
ポンプのケーシング内に入り込むことがなく、羽根車が
空転することも解消され、また、微細気泡の存在密度も
適度なものとなり、気泡同士が再結合することがない。In addition, the amount of compressed air introduced into the casing of the submersible pump installed in the water tank containing the drainage is adjusted by the flow rate control valve to quantitatively supply it from the supply pipe into the casing of the submersible pump. Therefore, excess air does not enter the casing of the submersible pump, the impeller is prevented from idling, and the existence density of fine bubbles is moderate, so that bubbles do not recombine with each other. .
第１図は本考案の一実施例を示す散気装置の概略説明図
である。第２図は本考案に係る水中ポンプの概略断面
図、第３図は本考案に係る散気装置の運転時を示す概略
説明図である。 １……水中ポンプ、３……羽根車、４……水取入れ口、
５……ケーシング、６……吐出口、７……気泡供給口、
８……コンプレッサー、９……供給管、10……流量調節
バルブ、11……小径のノズル、12……微細気泡、13……
水槽FIG. 1 is a schematic explanatory view of an air diffuser showing an embodiment of the present invention. FIG. 2 is a schematic cross-sectional view of the submersible pump according to the present invention, and FIG. 3 is a schematic explanatory view showing the operation of the air diffuser according to the present invention. 1 ... Submersible pump, 3 ... Impeller, 4 ... Water intake,
5 ... Casing, 6 ... Discharge port, 7 ... Bubble supply port,
8 ... Compressor, 9 ... Supply pipe, 10 ... Flow control valve, 11 ... Small diameter nozzle, 12 ... Fine bubbles, 13 ...
Aquarium
Claims (1)
を有するケーシングに気泡供給口を設け、該気泡供給口
に、外部から圧搾空気を流量調節バルブを介して定量的
に供給する供給管を接続し、前記気泡供給口に導入され
た圧搾空気を水中ポンプのケーシング内で細分化する羽
根車をケーシング内に備え、該ケーシング内で細分化し
た気泡が水と共に吐出される吐出口を前記ケーシングに
連通して一か所設け、前記吐出口に該吐出口より小径の
ノズルを設けたことを特徴とする散気装置。1. A supply pipe provided with a bubble supply port in a casing having a water intake port of a submersible pump installed in a water tank, and supplying compressed air from the outside quantitatively to the bubble supply port through a flow control valve. And an impeller that subdivides the compressed air introduced into the bubble supply port into the casing of the submersible pump, and the ejection port through which the subdivided bubbles in the casing are discharged together with water. An air diffuser which is provided at one place in communication with a casing and has a nozzle having a diameter smaller than that of the discharge port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990089190U JPH0728959Y2 (en) | 1990-08-28 | 1990-08-28 | Air diffuser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990089190U JPH0728959Y2 (en) | 1990-08-28 | 1990-08-28 | Air diffuser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0450198U JPH0450198U (en) | 1992-04-28 |
| JPH0728959Y2 true JPH0728959Y2 (en) | 1995-07-05 |
Family
ID=31823010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990089190U Expired - Lifetime JPH0728959Y2 (en) | 1990-08-28 | 1990-08-28 | Air diffuser |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0728959Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9492735B2 (en) | 2008-01-28 | 2016-11-15 | Cfph, Llc | Electronic gaming based on intermediate points in an event |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5652758B2 (en) * | 2010-06-24 | 2015-01-14 | 雅 田篭 | Pump aeration device |
| JP7390660B2 (en) * | 2020-05-11 | 2023-12-04 | 株式会社丸山製作所 | Pump with bubble generation mechanism |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5412932Y2 (en) * | 1972-12-29 | 1979-06-04 | ||
| JPS5479947A (en) * | 1977-12-08 | 1979-06-26 | Kosutaru Kk | Underwater air supply aerating device |
| JP2568417B2 (en) * | 1987-11-16 | 1997-01-08 | 海洋工業株式会社 | Deep aeration equipment such as reservoirs |
-
1990
- 1990-08-28 JP JP1990089190U patent/JPH0728959Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9492735B2 (en) | 2008-01-28 | 2016-11-15 | Cfph, Llc | Electronic gaming based on intermediate points in an event |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0450198U (en) | 1992-04-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
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Free format text: JAPANESE INTERMEDIATE CODE: R250 |
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