CN101684018B - Aerator - Google Patents
Aerator Download PDFInfo
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- CN101684018B CN101684018B CN2009101781214A CN200910178121A CN101684018B CN 101684018 B CN101684018 B CN 101684018B CN 2009101781214 A CN2009101781214 A CN 2009101781214A CN 200910178121 A CN200910178121 A CN 200910178121A CN 101684018 B CN101684018 B CN 101684018B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/20—Activated sludge processes using diffusers
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/005—Valves
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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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- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The invention provides an aerator, characterized in that the aerator is equipped with an air-dispersion device that can increase the content of dissolved oxygen in water, especially, the bubbler of the air-dispersion device is arranged right in front of the outlet close to the water flow discharge port so as to enlarge the dispersion range of the air bubble and simultaneously variably adjust the size of the air bubble. The aerator bubbles the air from the air supply pipe by means of the gap formed at the lower end of the dispersion chamber, the bubble is dispersed in water along with the water flow discharged from the plurality of water flow discharge ports, wherein, a dispersion pipe that is directly or indirectly communicated with the dispersion chamber is arranged on the aerator body, the dispersion pipe comprises a chamber body, which is arranged at the bottom of the aerator body in a manner of embedding into the outside of discharge side of the air supply pipe and communicated with the dispersion chamber; and a dispersion tube, which is communicated with the chamber body, for discharging the air supplied by the chamber body in a bubble manner.
Description
Technical field
The present invention relates to aerating apparatus in a kind of water.In more detail, relate to a kind of aerating apparatus with following feature: at aerating apparatus and establish loose device of air, can increase the content of the dissolved oxygen in water, particularly, the position of the bubbler by the device of air that will fall apart is arranged on the range of scatter that can enlarge bubble near straight the place ahead of the exit end of current discharge opening, and the size that can regulate changeably bubble.
Background technology
As everyone knows, be with organism as the aerobic microorganism of prey gradually to reduce organic method to be included in sewage by propagation according to the sewage water treatment method of microorganism.
Cause the organic environment that is suitable for simultaneously microorganism existence that continues to be provided as the microorganism prey according to aerobic cleansing operation needs, therefore the content that needs to increase the dissolved oxygen in sewage is fit to the device of living environment to set up aerobic microorganism, such device is called aerating apparatus in water (or aerator: below, be called " aerating apparatus ").Such aerating apparatus is by the negative pressure that is produced by the revolving force that is connected in the impeller of electric motor in water (negative pressure), the opposite direction of processing the backward suction direction of water (sewage) from (suction housing) top suction of suction chamber spues, and make and flow in the inner air of diffuser casing (diffuser) in passing to the direction that spues of processing water, together spued, thus, cause lasting maintenance or increase process the content of the dissolved oxygen in water and activate aerobic environment.
But therefore the fundamental property of such aerating apparatus in order to increase the dissolved oxygen content of processing in water or to improve the oxygen transport, can only design many aerating apparatuss or change jumbo aerating apparatus into due to limited, thereby mounting cost and operational cost increase.
On the other hand, for the power with same level enlarges the range of scatter of oxygen and improves the content of dissolved oxygen, although can increase air demand, but air demand is too much, can't spread on the contrary, thereby produce cavitation (cavitation: the vacuum that produces on the rear sides such as the thruster of rotation).Therefore, the method that merely increases air demand is for enlarging range of scatter, improving and certain limit is arranged the content of dissolved oxygen.
In order to address this problem, the applicant proposes on aerating apparatus in patent documentation 1 and the scheme of establishing diffuser.
In above-mentioned patent documentation 1, as shown in Figure 1, loose device of air also is set on common aerating apparatus, make the bubble diffusion of discharging from the diffuser 3b of loose device of air 3 by the current of discharging from the current discharge opening 2 of the circumferential direction that is arranged in drain chamber 1 (discharge housing), thereby, except the bubble that aerating apparatus itself is discharged, produce bubble from loose device of air with also appending, increase thus the generation of bubble.
But above-mentioned document 1 because the size of the bubble of discharging from diffuser 3b is large, thereby can not be diffused at a distance by the current that spue, but directly swims on the water surface by buoyancy with for air pressure, and how many effects that therefore increases the content of dissolved oxygen has weakened.
In addition, away from current discharge opening 2, the influence power of the current that therefore spue weakens due to the position of the diffuser 3b of the bubble that spues, thereby diffusion effect reduces.In addition, this is also the key element that restriction increases dissolved oxygen content.
In addition, have a look the example in the aerating apparatus that patent documentation 2 discloses, sleeve pipe 4 as shown in Figure 2 is made of 2 layers of shell, innerly forms the space that air can circulate, be formed with a plurality of a plurality of air dispelling hole 4a towards discharge opening 5 on this sleeve 4, sleeve pipe itself plays the effect of diffuser.And, be formed with at the downside of discharge opening 5 the loose gas 7 that is connected with air-supply duct 6, with bubble discharged to above-mentioned discharge opening 5.
But there is following problem in above-mentioned patent documentation 2, that is, mix and conflict at discharge opening 5 from the bubble of sleeve pipe 4 discharges and the bubble of discharging from loose gas 7, thereby producing the buffering phenomenon between bubble, thereby weakening the power that spues of current, the diffusion effect of obstruction bubble.
In addition, via air-supply duct 6 during to central part diffuser casing 8 and loose gas 7 common air supply, due to the device of not regulating air content, therefore the possibility that provides to the sheet side is many, particularly, the air of supplying with loose gas 7 only concentrate on air-supply duct 6 near, the phenomenon that bubble can't evenly be spread.Therefore, relatively a large amount of bubbles is told to specific discharge opening, and a small amount of bubble is told to other discharge openings away from air-supply duct 6, thereby has the evenly more difficult problem of diffusion of bubble that makes.
Also have above-mentioned patent documentation 1,2 functions that all there is no to regulate Air Bubble Size.That is air dispelling hole 3b, the 4a, the 7a that, form on the sleeve pipe 4 of the diffuser 3a of patent documentation 1 and patent documentation 2 and loose gas 7 are a kind of structures that can not change the aperture.Therefore, when changing the aperture, whole aerating apparatus must be changed, so efficient is poor.
No. the 10-542865th, [patent documentation 1] Korean Patent Registration
No. the 10-2007-17429th, [patent documentation 2] Korea S publication communique
Summary of the invention
Invent problem to be solved
Therefore, the present invention proposes in order to solve existing issue as above, and main purpose of the present invention is, provide a kind of by and establish the aerating apparatus that loose device of air can increase the dissolved oxygen content in water.
The position that another object of the present invention is to provide a kind of bubbler by the device of air that will fall apart is arranged on the aerating apparatus that can further enlarge the range of scatter of bubble near straight the place ahead of the exit end of current discharge opening.
Further other purposes of the present invention are to provide a kind of mode with assembling porous plate are set, thereby by the next aerating apparatus that can regulate arbitrarily Air Bubble Size of replacing of porous plate.
Solve the method for problem
If according in order to reach the 1st embodiment of the present invention of above-mentioned purpose, in this water, aerating apparatus is characterised in that, in the aerating apparatus main body and establish diffuser, the bubbler of above-mentioned diffuser is positioned at the exit end near the current discharge opening.
In addition, if according in order to reach the 2nd embodiment of above-mentioned purpose, this aerating apparatus, the air of being supplied with by air-supply duct is carried out bubble by the gap that the lower end at diffuser casing forms, the current that this bubble retinue is spued by a plurality of current discharge openings spread in water, it is characterized in that, in above-mentioned aerating apparatus main body and be provided with the diffuser that directly or indirectly is communicated with above-mentioned diffuser casing, above-mentioned diffuser comprises: chamber body, its state with the outside of the exhaust end that is embedded in above-mentioned air-supply duct is arranged on the bottom of aerating apparatus main body, and is communicated with above-mentioned diffuser casing; Loose inflator, it is connected in the mode that is communicated with above-mentioned chamber body, discharges the air of being supplied with by above-mentioned chamber body with air bubble-shaped.
The invention effect
The present invention described above can provide the more oxygen of volume by at aerating apparatus and establish loose device of air in water (sewage).
In addition, be arranged on straight the place ahead near the exit end of current discharge opening by the position with the bubbler of said apparatus, can further enlarge the range of scatter of bubble.
And then, in the mode of assembling, porous plate is set, can according to circumstances regulate Air Bubble Size by the alternately next of porous plate.
Description of drawings
Fig. 1 is an embodiment of aerating apparatus in the water that has of existing loose device of air.
Fig. 2 is other embodiment of aerating apparatus in the water that has of existing loose device of air.
Fig. 3 is the whole assembling stereogram of aerating apparatus in water of the present invention.
Fig. 4 is the longitudinal sectional view of Fig. 3.
Fig. 5 is the orthographic plan of loose device of air of the present invention.
Fig. 6 extracts illustrated stereographic map afterwards with loose device of air of the present invention.
＜Reference numeral 〉
10: the aerating apparatus main body
20: diffuser
21: chamber body
22: loose air ring
23: pad
24: pipe connecting
25: the first bridge pipes
26: the second bridge pipes
220: loose air ring main body
221: chamber section
225: bubbler
226: perforated portion
227: porous plate
228: guide plate
Embodiment
Be described in detail referring to the technology contents of accompanying drawing to aerating apparatus of the present invention.
Fig. 3 is the whole assembling stereogram of aerating apparatus of the present invention, and Fig. 4 is the longitudinal sectional view of Fig. 3, and Fig. 5 is the orthographic plan of loose device of air of the present invention, and Fig. 6 extracts illustrated stereographic map afterwards with loose device of air of the present invention.
The present invention includes aerating apparatus main body 10 consists of, this aerating apparatus consists of as follows: the gap 12a that forms via the lower end at diffuser casing 12 will carry out bubble by the air that air-supply duct 11 is supplied with, and make this bubble along with the current that spue to a plurality of current discharge openings 13 spread in water.
In the bottom of above-mentioned aerating apparatus 10 and be provided with and diffuser 20 that above-mentioned diffuser casing 12 directly or indirectly is communicated with, can improve the diffuser efficiency of air.
Herein, observe the structure of an example of above-mentioned diffuser 20, it comprises that chamber body 21 and loose air ring 22 consists of, and wherein, described chamber body is threadedly connected to the bottom of aerating apparatus main body 10 and is communicated with above-mentioned diffuser casing 12 with the state of the outside of the exhaust end 11a that is embedded in above-mentioned air-supply duct 11; Described loose inflator 22 is connected with above-mentioned chamber body 21 in the mode that is communicated with, and discharges with air bubble-shaped the air of being supplied with by above-mentioned chamber body 21.
In above-mentioned, chamber body 21 is formed with the airflow hand-hole 21a that is connected with the medium pore 10b of the bottom surface 10a that is formed on aerating apparatus main body 10, and this chamber body 21 is so that delivered to the mode that the part of air of the inside of diffuser casing 12 can flow into the inside of chamber body 21 and consist of by air-supply duct 11.Herein, chamber body 21 can directly be connected with diffuser casing 12, perhaps, also can indirectly be connected with diffuser casing 12 by the other media thing.
In addition, the end of the underpunch 21c that forms on the 21b of the bottom surface of above-mentioned chamber body 21 is provided with the pad 23 that air seal is used.Above-mentioned pad 23 is to form from the mode of extending to air-supply duct 11 direction in long ways with the air-supply duct 11 contacted end of underpunch 21c, and by the top of above-mentioned chamber body 21 from air-supply duct exhaust end 11a is embedded downwards, and the part of the pad 23 that extends from the contact end of above-mentioned underpunch 21c is bent upwards.At this moment, above-mentioned pad 23 makes bend 23a be crushed on the face side of air-supply duct 11 by the internal pressure in chamber body 21, thereby can keep gas tightness.
Above-mentioned chamber body 21 and loose inflator 22 are provided with more than one pipe connecting 24.At this moment, above-mentioned pipe connecting 24 is connected with chamber body and is connected in the mode that is interconnected by Bridge 1 formula pipe 25, and above-mentioned pipe connecting 24 connects in the mode that is interconnected by more than one Bridge 2 formula pipe 26 with the inflator 22 that is connected.Therefore, flow into the air of above-mentioned chamber body 21, by after Bridge 1 formula pipe 25, pipe connecting 24, Bridge 2 formula pipe 26, be discharged in water via loose inflator 22 successively.
In above-mentioned, preferably be provided with the open and close valve 25a that controls this pipe switch on Bridge 1 formula pipe 25.This open and close valve 25a plays and regulates by the air capacity of Bridge 1 formula pipe 25 or the effect of partition.
On the one hand, above-mentioned loose inflator 22 comprises loose inflator main body 220 and bubbler 225, and wherein, this loose inflator main body 220 has the chamber section 221 that is communicated with above-mentioned pipe connecting 24 by Bridge 2 formula pipe 26; This bubbler 225 is arranged at above-mentioned loose inflator main body 220, and the air in above-mentioned chamber section 221 are carried out tiny bubble.
Above-mentioned bubbler 225 comprises: the perforated portion 226 that forms on 222 on above-mentioned loose inflator main body 220; Be arranged on above-mentioned perforated portion 226 and the air of discharging via perforated portion 226 carried out the porous plate 227 of tiny bubble.Owing to being formed be used to the pore 227a that makes the air tiny bubble at above-mentioned porous plate 227, therefore in the time of will carrying out further tinyization or make bubble become a little large bubble, just can access the bubble of desired size as long as replace present porous plate with other porous plates.
Above-mentioned bubbler 225 preferably is close to the exit end 13a of above-mentioned current discharge opening 13 and is arranged, to be subject to significantly the impact of current.
In addition, top 222 of above-mentioned loose inflator main body 220 preferably tilt with the angle similar to the vergence direction of current discharge opening 13.Its reason is, has same angle of inclination above front line direction by making the current that spue from current discharge opening 14 and the loose inflator main body 220 that is close to this, current are moved ahead smoothly becomes possibility, and the bubble of discharging above loose inflator main body is also overcome possibly to diffusion at a distance by the moving ahead of current that moves ahead smoothly.
On the other hand, in the both sides of the bubbler 225 of above-mentioned loose inflator main body 220, guide plate 228 is set preferably, this guide plate 228 is guide its not dispersed mode when current and bubble are spued.Above-mentioned guide plate 228 plays the effect that current and bubble is guided to certain position, in order to avoid current and bubble be to disperseing, and makes it have rectilinearity everywhere, thereby can improve the diffustivity of bubble.
The effect of the present invention that consists of as above structure is elaborated, as follows.
The air that provides via air-supply duct 11 flow into the inside of diffuser casing 12.Flow into the airborne part of diffuser casing 12 via the gap 12a in the formation of the lower end of diffuser casing 12, the current that flow to the bottom in the top of retinue's suction chamber 14 are discharged from via current discharge opening 13.
On the other hand, above-mentioned airborne other parts that flow into diffuser casing 12 flow into chamber body 21 via the medium pore 10b that forms on the 10a of the bottom surface of aerating apparatus main body 10, the air that flow into chamber body 21 is successively by after Bridge 1 formula pipe 25, pipe connecting 24, Bridge 2 formula pipe 26, is discharged in water via the porous plate 227 of loose inflator 22.
At this moment, arrange by the exit end 13a that the bubbler 225 of above-mentioned loose inflator 22 is close to current discharge opening 13, can be subject to significantly the impact of current that spues, be diffused at a distance thereby make from the bubble of bubbler 225 discharges.Therefore in addition, because the mode of above-mentioned porous plate 227 with assembling arranges, when being judged as Air Bubble Size unaccommodated the time, can replacing the porous plate of different pore openings and arrange.
On the other hand, in above-mentioned, although after having exemplified out current and sucking from the top of aerating apparatus main body 10 from current discharge opening 13 spue under the mode that spues, suck afterwards from the mode that spues that current discharge opening 13 spues also applicable technology of the present invention from the bottom of aerating apparatus main body 10.
Claims (12)
1. aerating apparatus in a water, the negative pressure that it is produced by the revolving force that is connected in the impeller of electric motor in water, the opposite direction of processing water or the backward suction direction of sewage from top or the bottom suction of suction chamber spues, and make the air that flows in diffuser casing inside in passing to the direction that spues of processing water or sewage, together spued, it is characterized in that, in the aerating apparatus main body and be provided with the diffuser with loose inflator main body that is communicated with diffuser casing, the bubbler of above-mentioned diffuser is positioned at the exit end near the current discharge opening, described bubbler comprises: perforated portion, its be formed on loose inflator main body above, porous plate, it is installed on perforated portion, and the air of discharging via perforated portion is carried out tiny bubble.
2. aerating apparatus in water according to claim 1, is characterized in that, above-mentioned diffuser directly is communicated with diffuser casing.
3. aerating apparatus in water according to claim 1, is characterized in that, above-mentioned diffuser is situated between by other media thing and diffuser casing indirect communication.
4. aerator in a water, the negative pressure that it is produced by the revolving force that is connected in the impeller of motor in water, the opposite direction of processing water or the backward suction direction of sewage from top or the bottom suction of suction chamber spues, and make to flow in the air of diffuser casing inside in passing to the direction that spues of processing water or sewage, together spued, and the air of being supplied with by air supply pipe is carried out to bubble by the gap that the lower end at diffuser casing forms, the current that this bubble retinue is spued by a plurality of current discharge openings spread in water, it is characterized in that
In above-mentioned aerating apparatus main body and be provided with the diffuser that directly or indirectly is communicated with above-mentioned diffuser casing,
Above-mentioned diffuser comprises: chamber body, and its state with the outside of the exhaust end that is embedded in above-mentioned air-supply duct is arranged on the bottom of aerating apparatus main body, and is communicated with above-mentioned diffuser casing; Loose inflator, it is connected in the mode that is communicated with above-mentioned chamber body, discharges the air of being supplied with by above-mentioned chamber body with air bubble-shaped.
5. aerating apparatus in water according to claim 4, is characterized in that, is provided with pipe connecting between above-mentioned chamber body and loose inflator, and above-mentioned chamber body is connected Bridge 1 formula pipe and is connected with pipe connecting, and above-mentioned pipe connecting connects by Bridge 2 formula pipe with the inflator that is connected.
6. aerating apparatus in water according to claim 5, is characterized in that, comprises be used to the open and close valve that opens and closes above-mentioned Bridge 1 formula pipe.
7. aerating apparatus in water according to claim 5, is characterized in that, above-mentioned loose inflator comprises: loose inflator main body, and it has the chamber section that is communicated with above-mentioned pipe connecting by Bridge 2 formula pipe; Bubbler, it is arranged at above-mentioned loose inflator main body, when the air in above-mentioned chamber section is discharged from, air is carried out tiny bubble.
8. aerating apparatus in water according to claim 7, is characterized in that, above-mentioned bubbler comprises: perforated portion, its be formed on above-mentioned loose inflator main body above; Porous plate, it is installed on above-mentioned perforated portion, and the air of discharging via perforated portion is carried out tiny bubble.
9. aerating apparatus according to claim 7 or 8 described water, is characterized in that, the both sides of the bubbler of above-mentioned loose inflator main body are provided with guide plate, and this guide plate is guide its mode of not disperseing when current and bubble are spued.
10. aerating apparatus in water according to claim 9, is characterized in that, the top of above-mentioned loose inflator main body tilts with the angle similar to the vergence direction of current discharge opening.
11. aerating apparatus in water according to claim 5 is characterized in that, is provided with pad in above-mentioned chamber body with the end that contacts of air-supply duct.
12. aerating apparatus in water according to claim 11, it is characterized in that, above-mentioned pad forms in the mode of extending to air-supply duct side direction in long way from above-mentioned contact end, by the top of above-mentioned chamber body from the air-supply duct exhaust end is embedded, the part of the pad that extends from above-mentioned contact end is out of shape downwards in the mode that is bent upwards.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20080094871A KR100899379B1 (en) | 2008-09-26 | 2008-09-26 | Aerator |
| KR1020080094871 | 2008-09-26 | ||
| KR10-2008-0094871 | 2008-09-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101684018A CN101684018A (en) | 2010-03-31 |
| CN101684018B true CN101684018B (en) | 2013-05-22 |
Family
ID=40862474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101781214A Active CN101684018B (en) | 2008-09-26 | 2009-09-27 | Aerator |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4943482B2 (en) |
| KR (1) | KR100899379B1 (en) |
| CN (1) | CN101684018B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101125133B1 (en) * | 2009-08-12 | 2012-03-16 | 주식회사 부강테크 | submersible aerator with diffusional chambers |
| KR102143790B1 (en) * | 2017-07-20 | 2020-08-12 | (주)네이처와이드 | High efficiency micro bubble generator, floatation plant using the same and operating method of the same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9616838D0 (en) * | 1996-08-10 | 1996-09-25 | Smith Robert H | A water oxygenating device |
| CN2337140Y (en) * | 1998-02-17 | 1999-09-08 | 烟台龙达水处理技术公司 | Underwater turbine aerator |
| CN2563151Y (en) * | 2002-08-05 | 2003-07-30 | 诸暨市宏宇环保机械有限公司 | Under water aerator |
| CN2613144Y (en) * | 2002-12-10 | 2004-04-28 | 博利源科技股份有限公司 | Aerator |
| JP4017339B2 (en) * | 2000-11-29 | 2007-12-05 | 荏原機電株式会社 | Underwater aeration equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58223492A (en) * | 1982-03-01 | 1983-12-26 | Ebara Corp | Aerator |
| JPS588589A (en) * | 1981-07-09 | 1983-01-18 | Ebara Corp | Aerator |
| JPS5820297A (en) * | 1981-07-29 | 1983-02-05 | Ebara Corp | Aerator |
| JPS58114796A (en) | 1981-12-28 | 1983-07-08 | Ebara Corp | Method and device for aeration |
| JPS58114798A (en) * | 1981-12-28 | 1983-07-08 | Ebara Corp | Aerator |
| JPS58114797A (en) * | 1981-12-28 | 1983-07-08 | Ebara Corp | Impeller of aerating device |
| JPS5916597A (en) * | 1982-07-21 | 1984-01-27 | Ebara Corp | Aerator |
| JPS63119899A (en) * | 1986-11-07 | 1988-05-24 | Ebara Res Co Ltd | Aeration device |
| JP3437787B2 (en) * | 1999-04-14 | 2003-08-18 | 株式会社荏原製作所 | Underwater aerator air supply system |
| JP4503870B2 (en) | 2001-03-16 | 2010-07-14 | 株式会社鶴見製作所 | Underwater air mixer |
| KR100542865B1 (en) | 2004-12-16 | 2006-01-20 | 주식회사 유천엔바이로 | Aerator |
| JP4542521B2 (en) * | 2006-04-28 | 2010-09-15 | 住友重機械エンバイロメント株式会社 | Underwater aeration equipment |
| KR20070017429A (en) * | 2007-01-22 | 2007-02-09 | 한상배 | Submersible Aerator and Mixer with the Increased Aeration Capacity and Stability |
-
2008
- 2008-09-26 KR KR20080094871A patent/KR100899379B1/en active IP Right Review Request
-
2009
- 2009-09-25 JP JP2009221207A patent/JP4943482B2/en active Active
- 2009-09-27 CN CN2009101781214A patent/CN101684018B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9616838D0 (en) * | 1996-08-10 | 1996-09-25 | Smith Robert H | A water oxygenating device |
| CN2337140Y (en) * | 1998-02-17 | 1999-09-08 | 烟台龙达水处理技术公司 | Underwater turbine aerator |
| JP4017339B2 (en) * | 2000-11-29 | 2007-12-05 | 荏原機電株式会社 | Underwater aeration equipment |
| CN2563151Y (en) * | 2002-08-05 | 2003-07-30 | 诸暨市宏宇环保机械有限公司 | Under water aerator |
| CN2613144Y (en) * | 2002-12-10 | 2004-04-28 | 博利源科技股份有限公司 | Aerator |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4943482B2 (en) | 2012-05-30 |
| KR100899379B1 (en) | 2009-05-26 |
| CN101684018A (en) | 2010-03-31 |
| JP2010075924A (en) | 2010-04-08 |
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