CN201132799Y - Impeller inhaling jet aerator for oxidating ditch - Google Patents
Impeller inhaling jet aerator for oxidating ditch Download PDFInfo
- Publication number
- CN201132799Y CN201132799Y CNU2008203005721U CN200820300572U CN201132799Y CN 201132799 Y CN201132799 Y CN 201132799Y CN U2008203005721 U CNU2008203005721 U CN U2008203005721U CN 200820300572 U CN200820300572 U CN 200820300572U CN 201132799 Y CN201132799 Y CN 201132799Y
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- China
- Prior art keywords
- impeller
- oxidation ditch
- air suction
- axial
- flow
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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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- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The utility model discloses an impeller air-suction-type jet aerator for an oxidation ditch. The aerator comprises a floating body fixed on mixed liquid surface in the oxidation ditch. The floating body is provided with a motor and an air suction pipe one end of which is submerged in the mixed liquid in the oxidation ditch and is communicated with a subpressure air admission chamber positioned in the mixed liquid. A jet cylinder which is arranged downwards in the inclination way is connected with an outlet of the subpressure air admission chamber. An axial-flow impeller is arranged at the internal joint of the subpreaaure air admission chamber and the inner part of the cylinder. The power interface of the axial-flow impeller is connected with the motor. The impeller air-suction-type jet aerator can realize the oxygen supply and the flow propelling concurrently, and has the advantages of simpler structure, lower manufacture cost, longer service life, convenient installation and maintenance, higher efficiency, better oxygen supply and flow propelling performance and lower noise.
Description
Technical field
The utility model relates to a kind of impeller air suction type jet aerator that is used for oxidation ditch, belongs to aeration in sewage treatment, plug-flow equipment.
Background technology
The traditional array mode of the aeration of oxidation ditch and plug-flow mainly contains three kinds: a kind of is aeration rotary brush, when transmission shaft rotates, water is under the commentaries on classics brush blade effect of rotation, be the air intense mixing that the shape that splashes is tangentially dished out the water surface and entrained into, finish oxygen in water transfer and to the plug-flow of mixed solution, but it is inhomogeneous in vertical direction oxygenation and plug-flow, make the bottom of oxidation ditch be difficult to obtain sufficient oxygen supply, and active sludge will form sludge blanket in bottom deposit, active sludge is in anoxic or even anaerobic state for a long time in the sludge blanket, can cause the mud come-up, influence wastewater treatment efficiency.Another kind is to adopt forced blast aeration system.It is to utilize malleation to be pressed into the aerator of air, usually form by air pressurization device, air transmission ﹠ distribution pipeline and air-diffuser, air pressurized equipment comprises air purifier, gas blower or air compressor machine, the main effect of air pressurized equipment is to make the air of q.s with enough big pressure process air distributing system, enters air-diffuser.Though this type of aerating apparatus oxygen transfer rate is higher, in actual applications, air-diffuser is easily by sludge blockage, and time stops when opening, and maintenance cost is higher, and working efficiency is lower, and work-ing life is also shorter; In addition, its structure is comparatively complicated, the total cost costliness, and the gas blower noise is big; Because air-diffuser itself does not possess the plug-flow function, also need dispose independently plug-flow system separately when in oxidation ditch, using again, increase the input of cost.The third is a jet aerator.Because it has gas blower and water pump, makes that the operation noise of equipment is bigger, and jet-flow aeration integral body fixedly mounts comparatively inconvenience of installation and maintenance maintenance under water.In order to overcome above-mentioned shortcoming, develop the aerator (as Chinese patent 94212639.4 disclosed underwater aerators) that adopts impeller at present, but as aerator under water, its channel architecture complexity is used submersible machine, manufacturing cost is higher; Because the passage loss is higher during the channel architecture complex work, cause working efficiency to descend.
Summary of the invention
Problem to be solved in the utility model is: provide a kind of while can be to oxygen supply and plug-flow in the ditch of oxidation ditch, structure is comparatively simple, cost is comparatively cheap, work-ing life is longer, convenient for installation and maintenance, working efficiency is higher, and oxygen supply and plug-flow effect are better, the impeller air suction type jet aerator that is used for oxidation ditch that noise is less is to overcome the deficiencies in the prior art.
The utility model is to constitute like this: it comprises that is fixed on a buoyancy aid 1 that mixes in the oxidation ditch on the liquid level, on buoyancy aid 1, be provided with motor 5 and air suction pipe 2, one end of air suction pipe 2 mixed solution in the oxidation ditch that submerges, and be communicated with negative pressure inlet chamber 3 in being located at mixed solution, outlet in negative pressure inlet chamber 3 is connected with the jet tube 4 that oblique direction down is provided with, be provided with axial-flow impeller 6 in negative pressure inlet chamber 3 and jet tube 4 inner intersections, the power interface of axial-flow impeller 6 is connected with motor 5.
The above-mentioned impeller air suction type jet aerator that is used for oxidation ditch is fixed with control hand wheel 7 on buoyancy aid 1, and control hand wheel 7 is socketed in air suction pipe 2 and places an end that mixes on the liquid level.
The aforesaid impeller air suction type jet aerator that is used for oxidation ditch, described jet tube 4 is 30 °～70 ° with the angle α that mixes liquid level.
The aforesaid impeller air suction type jet aerator that is used for oxidation ditch, described buoyancy aid 1 is the annular buoyancy aid.
The aforesaid impeller air suction type jet aerator that is used for oxidation ditch, the supply lead that the power interface of axial-flow impeller 6 is connected with motor 5 is through in the guard tube 8, and the top of guard tube 8 also is provided with the control hand wheel 7 that connects by screw rod.
Owing to adopted above-mentioned technical scheme, compared with the prior art, the utility model is simple in structure, has the dual function of aeration and plug-flow, and because motor is installed on the mixing liquid level, makes it can adopt the low price common electric machine, has reduced production cost.In addition, the utility model is that integral body floats on the mixed solution liquid level, proposes liquid level easily and just can safeguard, installs, and significantly prolonged work-ing life.In addition, the utility model can keep long-play, and working efficiency is higher, and many group air suction pipes, negative pressure inlet chamber, jet tube, motor and axial-flow impeller can be installed on buoyancy aid, makes oxygen supply and plug-flow effect significantly strengthen.Besides, the utility model does not use gas blower and water pump, and noise is less when making its work.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Being labeled as of accompanying drawing: 1-buoyancy aid, 2-air suction pipe, 3-negative pressure inlet chamber, 4-jet tube, 5-motor, 6-axial-flow impeller, 7-control hand wheel, 8-guard tube, α-jet tube and the angle that mixes liquid level.
Specific implementation method:
Embodiment 1 of the present utility model: originally be used for oxidation ditch impeller air suction type jet aerator structure as shown in Figure 1, it comprises an existing commercially available buoyancy aid 1, buoyancy aid 1 is fixed in the oxidation ditch mixes on the liquid level, motor 5 and air suction pipe 2 are installed on buoyancy aid 1, with submerge mixed solution in the oxidation ditch of an end of air suction pipe 2, and air suction pipe 2 is communicated with negative pressure inlet chamber 3 in being installed in mixed solution, negative pressure inlet chamber 3 is enclosed spaces that adopt the arbitrary shape that existing commercially available water-proof material makes, outlet in negative pressure inlet chamber 3 connects a jet tube 4, jet tube 4 is cylindrical structural body that adopt existing commercially available water-proof material to make, and with the 4 oblique directions down installations of jet tube, in negative pressure inlet chamber 3 and jet tube 4 inner intersections axial-flow impeller 6 is installed, the power interface of axial-flow impeller 6 is connected with motor 5, mix on the liquid level because motor 5 is installed in, make it can adopt existing commercially available common electric machine finished product.
When use is used for the impeller air suction type jet aerator of oxidation ditch, after opening motor 5, motor 5 drives axial-flow impeller 6 high speed rotating, will form a negative pressuren zone at the rear of axial-flow impeller 6, at this moment, empty G﹠W is inhaled into negative pressure inlet chamber 3 and is guided to jet tube 4 under the effect of negative pressure.Air is through the impeller of high speed rotating the time, because the cutting action of axial-flow impeller 6, and airflow is converted into trickle, uniform bubble, its mean diameter is about 2mm.In axial-flow impeller 6 and jet tube 4, bubble and water are under the rotation of axial-flow impeller 6 drives, mix tempestuously and stir, airborne oxygen has been realized good diffusion and mass transfer in water, simultaneously because jet tube 4 is oblique direction setting down, the air water mixed solution leaves behind the jet tube 4 also with the dive certain depth, and after being released at a distance by the plug-flow effect of axial-flow impeller 6, bubble floating under buoyancy is finished aeration and plug-flow preferably.
When use is used for the impeller air suction type jet aerator of oxidation ditch, rotates control hand wheel 7 and can promote or reduce air suction pipe 2, thereby adjust jet tube 4 and the angle α that mixes liquid level.After opening motor 5, motor 5 drives axial-flow impeller 6 high speed rotating, will form a negative pressuren zone at the rear of axial-flow impeller 6, and at this moment, empty G﹠W is inhaled into negative pressure inlet chamber 3 and is guided to jet tube 4 under the effect of negative pressure.Air is through the impeller of high speed rotating the time, because the cutting action of axial-flow impeller 6, and airflow is converted into trickle, uniform bubble, its mean diameter is about 2mm.In axial-flow impeller 6 and jet tube 4, bubble and water are under the rotation of axial-flow impeller 6 drives, mix tempestuously and stir, airborne oxygen has been realized good diffusion and mass transfer in water, simultaneously because jet tube 4 is oblique direction setting down, the air water mixed solution leaves behind the jet tube 4 also with the dive certain depth, and after being released at a distance by the plug-flow effect of axial-flow impeller 6, bubble floating under buoyancy is finished aeration and plug-flow preferably.
Claims (5)
1. impeller air suction type jet aerator that is used for oxidation ditch, it comprises that is fixed on a buoyancy aid (1) that mixes in the oxidation ditch on the liquid level, it is characterized in that: on buoyancy aid (1), be provided with motor (5) and air suction pipe (2), one end of air suction pipe (2) mixed solution in the oxidation ditch that submerges, and be communicated with negative pressure inlet chamber (3) in being located at mixed solution, outlet in negative pressure inlet chamber (3) is connected with the jet tube (4) that oblique direction down is provided with, be provided with axial-flow impeller (6) in negative pressure inlet chamber (3) and the inner intersection of jet tube (4), the power interface of axial-flow impeller (6) is connected with motor (5)
2. the impeller air suction type jet aerator that is used for oxidation ditch according to claim 1 is characterized in that: be fixed with control hand wheel (7) on buoyancy aid (1), and control hand wheel (7) is socketed in air suction pipe (2) and places an end that mixes on the liquid level.
3. the impeller air suction type jet aerator that is used for oxidation ditch according to claim 1 is characterized in that: described jet tube (4) is 30 °～70 ° with the angle that mixes liquid level (α).
4. the impeller air suction type jet aerator that is used for oxidation ditch according to claim 1, it is characterized in that: described buoyancy aid (1) is the annular buoyancy aid.
5. the impeller air suction type jet aerator that is used for oxidation ditch according to claim 1, it is characterized in that: the supply lead that the power interface of axial-flow impeller (6) is connected with motor (5) is through in the guard tube (8), and the top of guard tube (8) also is provided with the control hand wheel (7) that connects by screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203005721U CN201132799Y (en) | 2008-04-16 | 2008-04-16 | Impeller inhaling jet aerator for oxidating ditch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203005721U CN201132799Y (en) | 2008-04-16 | 2008-04-16 | Impeller inhaling jet aerator for oxidating ditch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201132799Y true CN201132799Y (en) | 2008-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008203005721U Ceased CN201132799Y (en) | 2008-04-16 | 2008-04-16 | Impeller inhaling jet aerator for oxidating ditch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201132799Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116789285A (en) * | 2023-08-22 | 2023-09-22 | 山东省科学院生态研究所(山东省科学院中日友好生物技术研究中心) | Inclined stirring oxygenation device and oxygenation method for sewage treatment |
-
2008
- 2008-04-16 CN CNU2008203005721U patent/CN201132799Y/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116789285A (en) * | 2023-08-22 | 2023-09-22 | 山东省科学院生态研究所(山东省科学院中日友好生物技术研究中心) | Inclined stirring oxygenation device and oxygenation method for sewage treatment |
| CN116789285B (en) * | 2023-08-22 | 2024-05-03 | 山东省科学院生态研究所(山东省科学院中日友好生物技术研究中心) | Inclined stirring oxygenation device and oxygenation method for sewage treatment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20090810 Decision number of declaring invalidation: 13653 Granted publication date: 20081015 |