CN103359832A - Electrically pressurizing type submersible centrifugal aeration machine - Google Patents
Electrically pressurizing type submersible centrifugal aeration machine Download PDFInfo
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- CN103359832A CN103359832A CN2013103403283A CN201310340328A CN103359832A CN 103359832 A CN103359832 A CN 103359832A CN 2013103403283 A CN2013103403283 A CN 2013103403283A CN 201310340328 A CN201310340328 A CN 201310340328A CN 103359832 A CN103359832 A CN 103359832A
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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
Abstract
The invention relates to an electrically pressurizing type submersible centrifugal aeration machine. The aeration machine comprises a submersible motor, wherein the output shaft of the submersible motor is connected with a centrifugation impeller; a side, of the centrifugation impeller, close to the submersible motor is provided with a water inlet; the other side, of the centrifugation impeller, far from the submersible motor is provided with an air inlet pipe; and the air inlet pipe is provided with a turbocharger. The turbocharger is provided with a wind pressure switch used for detecting negative pressure in the air inlet pipe. The wind pressure switch is provided with a trigger state that the turbocharger is started when the negative pressure is detected, and a standby state that the turbocharger remains close when no negative pressure is detected. By utilization of the structure of the aeration machine, water-air mixing effects can be effectively enhanced and diving depths of the aeration machine are increased.
Description
Technical field
The present invention relates to a kind of submersible aerator, especially a kind of electronics boosting type submersible centrifugal aeration machine belongs to underwater jet aeration machinery technical field.
Background technology
Understand according to the applicant, at present at sewage treatment area, traditional activated sludge biochemical treatment process is occupied an leading position, especially in municipal and large-scale industrial sewage engineering of water treatment, biochemical processing process is the core of whole engineering, and the core of biochemical processing process is aerator, make the certain dissolved oxygen content of maintenance in the sewage and dissolved oxygen is evenly distributed by aerator, and the beneficial microorganism in the active sludge is survived and breeding, thereby reach the purpose of decomposing the objectionable impurities such as COD and BOD in the sewage.
Present stage, aeration mode relatively more commonly used had aeration plate/aeration tube blast aeration, mechamical xurface aeration, diving mechanical aeration etc.
Aeration plate/aeration tube blast aeration mode: provide pressurized air by gas blower (being generally roots blower), and be delivered to by the road aeration plate or the aeration tube of sewage lagoon bottom, be diffused in the water body by the micropore on aeration plate or the aeration tube again.This mode need arrange special gas blower facility, and floor space is large, investment is high, it is complicated to install, inconvenience maintenance when breaking down.This mode of the many employings of municipal wastewater treatment plant over nearly 10 years, along with a large amount of engineerings progressively enter the maintenance interval, it is day by day serious that problem is transformed in the replacing that faces.
The mechamical xurface aeration mode: usually drive disc by heavy-duty motor and rotate to stir, splash spray at the water surface, reach the oxygenation purpose, but this mode watt consumption is large, efficient is low and mechanical fault is many.
Diving mechanical aeration mode: its working process is to produce negative pressure by venturi principle or centrifugal vacuum principle, with air intake under water, through overmulling gas impeller high speed rotating and cutting, after the realization gas-vapor mix, under centrifugal force drives, be diffused in the water body, reach the purpose that increases oxygen level to water body.Existing diving mechanical aeration machine mainly contains two large classes, and a kind of is jetting type, and a kind of is centrifugal, and these two kinds of forms all are to be finished suction and the cutting of air by a underwater high-speed impeller, are difficult to reach simultaneously best effect in air amount amount and cutting degree.Jetting type is the one direction injection, and centrifugal is that circumferential direction sprays.At present because domestic sewage treatment project progressively turns to miniaturization (the especially sewerage of 5000t/d), demand to compact construction diving mechanical aeration machine simple, convenient for installation and maintenance is increasing, then limited based on the vacuum tightness of venturi principle or the generation of centrifugal vacuum principle, restricted the diving depth (generally at 3-5 rice) of this kind equipment, and along with diving depth increases, the air imbibed quantity fast reducing.
Occurred in the market mainly containing two kinds with the auxiliary improvement project of calming the anger of blower fan: a kind of is German ABS corporate agent's complete blowing-type structure, by the gas-vapor mix mechanism under the large fan hydrous water independently, the gas mixed nub structure of this mechanism does not produce negative pressure, all rely on blower fan, investment is large and pipeline is complicated, bubble chopping degree is general, and energy consumption is also higher; Another kind is the submarine drum aeration structure of U.S. Ah staying Shengong department, adopts the less common blower fan (generally below 10kPa) of pressure, and it is less that mixed gas impeller produces negative pressure, and the gas-vapor mix degree of depth is more shallow, causes gas residence time of ducking in drink shorter.
Find through retrieval, the Chinese utility model patent of application number 2012203262981 Granted publication CN202729878U discloses the confession blower fan and has stirred pump diffusion aerator, the oxygenation structure that adopts axial flow turbine blower fan, taper air duct, back taper supercharging airduct, Lavalle cylinder to form can improve oxygenation efficient.Yet its structure is comparatively complicated on the one hand, realizes that difficulty is higher, is not the improvement of making for centrifugal aeration machine specially on the other hand, is difficult to directly apply to centrifugal aeration machine.
Summary of the invention
Primary technical problem to be solved by this invention is: overcome the problem that prior art exists, a kind of electronics boosting type submersible centrifugal aeration machine is provided, can effectively strengthen the gas-vapor mix effect, improve the aerator diving depth.
The technical scheme that the present invention solves primary technical problem is as follows:
A kind of electronics boosting type submersible centrifugal aeration machine comprises that output shaft is connected with the submersible machine of centrifugal impeller, and described centrifugal impeller is provided with water-in near a side of submersible machine, and described centrifugal impeller is provided with inlet pipe away from the opposite side of submersible machine; It is characterized in that, described inlet pipe is provided with turbo-supercharger, described turbo-supercharger has the blast switch of negative pressure in the inlet pipe of detecting, described blast switch has when detecting negative pressure the triggering state that starts turbo-supercharger, and the holding state that keeps turbo-supercharger to close when not detecting negative pressure.
This structure is when bringing into operation, and centrifugal impeller mixed gas and water body are also gone out the air-water mixture centrifugal atomization, makes simultaneously to produce negative pressure in the inlet pipe, and outside air is sucked in the inlet pipe; Blast switch starts turbo-supercharger after detecting this negative pressure, and turbo-supercharger produces large flow pressurized air and delivers to centrifugal impeller, thereby reaches the purpose that increases air input, strengthens the gas-vapor mix effect, and the diving depth of whole aerator is improved.
The second technical problem that the present invention will solve is: optimize the structure of turbo-supercharger, further guarantee air input and gas-vapor mix effect.
That is correlated with therewith is improved to: described turbo-supercharger comprises the tubular shell coaxial with inlet pipe, is provided with booster electric machine in the described housing, and described booster electric machine output shaft is connected with the rotation axis of supercharging impeller, and described rotation axis overlaps with the inlet pipe central shaft; Described booster electric machine controlled end is connected with blast switch.The rotating speed of described booster electric machine is at least 10000rpm; Described supercharging impeller is the ternary curved blade impeller; The boosting capability of described turbo-supercharger is at least 20kPa.
Like this, the turbocharger arrangement of employing is simple and boosting capability is strong, can effectively guarantee air input and gas-vapor mix effect.After adopting this preferred structure, can make the diving depth of whole aerator reach 4.5-7 rice, air input increases more than 30% than conventional centrifugal aerator, and turbo-supercharger is located on the inlet pipe simultaneously, and compact construction need not additionally set gas blower and gas distribution pipeline.
The 3rd technical problem that the present invention will solve is: reach from inlet pipe the process of centrifugal impeller in charge air flow, how to avoid the loss of airshed.
Relevant being improved to therewith: described inlet pipe is led to centrifugal impeller through airway, and described airway is curved, described airway the centrifugal impeller rotation the outer rim of projection on the circular plane and this circular flat substantially tangent.
Like this, charge air flow required resistance in reaching the process of centrifugal impeller is minimum, thereby avoids losing airshed, further effectively guarantees the air input of whole aerator.
The 4th technical problem that the present invention will solve is: how further to strengthen the gas-vapor mix effect.
That is correlated with therewith is improved to: described airway inwall is provided with by one group of groove and one group of spiral rifling that land forms.In the airway cross section, described groove and land space distribute and the centrosymmetric image of composition take the airway cross section center of circle as symmetry centre.In the airway cross section, described groove is the circular arc that the center of circle overlaps with the described cross section center of circle, and described land is to be connected with adjacent groove and towards the projection of extending away from described cross section center of circle direction.
Like this, can make charge air flow produce rotation, can further strengthen on the one hand the negative pressure in the inlet pipe, the air inlet effect is further improved; Can increase the movement rate that air-flow reaches centrifugal impeller on the other hand, thereby strengthen the gas-vapor mix effect.
The present invention further perfect technical scheme is as follows:
Preferably, described submersible machine output shaft straight down, described centrifugal impeller is positioned at submersible machine below; Described inlet pipe has the inlet end that communicates with the external world and the outlet side that is communicated with airway; Described submersible machine also has the strut member that is positioned at around the centrifugal impeller, and described strut member has the inlet mouth that is communicated with inlet pipe, the water inlet that is communicated with water-in.
Preferably, described inlet pipe is provided with sound damper away from the end of centrifugal impeller; Described submersible machine is provided with annular seal space near the water inlet; Described centrifugal impeller is coaxial sheathed mixed gas dish circumferentially.
After adopting structure of the present invention, can effectively strengthen the gas-vapor mix effect, improve the aerator diving depth.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention.
Fig. 2 is that Fig. 1 embodiment airway is arranged synoptic diagram.
Fig. 3 is the cross sectional representation of Fig. 1 embodiment airway.
Fig. 4 is the A-A part sectioned view of Fig. 3.
Embodiment
With reference to the accompanying drawings and in conjunction with the embodiments the present invention is described in further detail.But the invention is not restricted to given example.
Embodiment
The electronics boosting type submersible centrifugal aeration machine basic structure of present embodiment as shown in Figures 1 to 4, comprise that output shaft is connected with the submersible machine 1 of centrifugal impeller 2, centrifugal impeller 2 is provided with water-in 3 near a side of submersible machine 1, and centrifugal impeller 2 is provided with inlet pipe 4 away from the opposite side of submersible machine 1; Inlet pipe 4 is provided with turbo-supercharger 5, turbo-supercharger 5 has the blast switch 5-1 of the inlet pipe of detecting 4 interior negative pressure, blast switch 5-1 has when detecting negative pressure the triggering state that starts turbo-supercharger 5, and the holding state that keeps turbo-supercharger 5 to close when not detecting negative pressure.
Turbo-supercharger 5 comprises the tubular shell 5-2 coaxial with inlet pipe 4, is provided with booster electric machine 5-3 in the housing 5-2, and booster electric machine 5-3 output shaft is connected with the rotation axis of supercharging impeller 5-4, and supercharging impeller 5-4 rotation axis overlaps with inlet pipe 4 central shafts; Booster electric machine 5-3 controlled end is connected with blast switch 5-1.The rotating speed of booster electric machine 5-3 is at least 10000rpm; Supercharging impeller 5-4 is the ternary curved blade impeller; The boosting capability of turbo-supercharger 5 is at least 20kPa.
Inlet pipe 4 is led to centrifugal impeller 2 through airway 6, and airway 6 is curved, airway 6 centrifugal impeller 2 rotation the outer rim of projection on the circular plane and this circular flat substantially tangent.
Airway 6 inwalls are provided with by one group of groove 7-1 and one group of spiral rifling that land 7-2 forms.In airway 6 cross sections, groove 7-1 and land 7-2 space distribute and the centrosymmetric image of composition take the airway 6 cross section centers of circle as symmetry centre.In airway 6 cross sections, groove 7-1 is the circular arc that the center of circle overlaps with the cross section center of circle, and land 7-2 is connected with adjacent groove 7-1 and towards the projection of extending away from cross section center of circle direction.
In addition, submersible machine 1 output shaft straight down, centrifugal impeller 2 is positioned at submersible machine 1 below; Inlet pipe 4 has the inlet end that communicates with the external world and the outlet side that is communicated with airway 6.
Submersible machine 1 also has the strut member that is positioned at around the centrifugal impeller 2, and strut member has the inlet mouth that is communicated with inlet pipe 4, the water inlet that is communicated with water-in 3.
Inlet pipe 4 is provided with sound damper 8 away from the end of centrifugal impeller 2; Submersible machine 1 is provided with annular seal space 9 near water-in 3 places; Centrifugal impeller 2 circumferential coaxial sheathed mixed gas dishes 10.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (9)
1. an electronics boosting type submersible centrifugal aeration machine comprises that output shaft is connected with the submersible machine of centrifugal impeller, and described centrifugal impeller is provided with water-in near a side of submersible machine, and described centrifugal impeller is provided with inlet pipe away from the opposite side of submersible machine; It is characterized in that, described inlet pipe is provided with turbo-supercharger, described turbo-supercharger has the blast switch of negative pressure in the inlet pipe of detecting, described blast switch has when detecting negative pressure the triggering state that starts turbo-supercharger, and the holding state that keeps turbo-supercharger to close when not detecting negative pressure.
2. electronics boosting type submersible centrifugal aeration machine according to claim 1, it is characterized in that, described turbo-supercharger comprises the tubular shell coaxial with inlet pipe, be provided with booster electric machine in the described housing, described booster electric machine output shaft is connected with the rotation axis of supercharging impeller, and described rotation axis overlaps with the inlet pipe central shaft; Described booster electric machine controlled end is connected with blast switch.
3. electronics boosting type submersible centrifugal aeration machine according to claim 2 is characterized in that the rotating speed of described booster electric machine is at least 10000rpm; Described supercharging impeller is the ternary curved blade impeller; The boosting capability of described turbo-supercharger is at least 20kPa.
4. electronics boosting type submersible centrifugal aeration machine according to claim 1, it is characterized in that, described inlet pipe is led to centrifugal impeller through airway, and described airway is curved, described airway centrifugal impeller rotation the outer rim of projection on the circular plane and this circular flat substantially tangent.
5. electronics boosting type submersible centrifugal aeration machine according to claim 1 is characterized in that, described airway inwall is provided with by one group of groove and one group of spiral rifling that land forms.
6. electronics boosting type submersible centrifugal aeration machine according to claim 5 is characterized in that, in the airway cross section, described groove and land space distribute and the centrosymmetric image of composition take the airway cross section center of circle as symmetry centre.
7. electronics boosting type submersible centrifugal aeration machine according to claim 6, it is characterized in that, in the airway cross section, described groove is the circular arc that the center of circle overlaps with the described cross section center of circle, and described land is to be connected with adjacent groove and towards the projection of extending away from described cross section center of circle direction.
8. according to claim 1 to 7 each described electronics boosting type submersible centrifugal aeration machines, it is characterized in that, described submersible machine output shaft straight down, described centrifugal impeller is positioned at submersible machine below; Described inlet pipe has the inlet end that communicates with the external world and the outlet side that is communicated with airway; Described submersible machine also has the strut member that is positioned at around the centrifugal impeller, and described strut member has the inlet mouth that is communicated with inlet pipe, the water inlet that is communicated with water-in.
9. according to claim 1 to 7 each described electronics boosting type submersible centrifugal aeration machines, it is characterized in that described inlet pipe is provided with sound damper away from the end of centrifugal impeller; Described submersible machine is provided with annular seal space near the water inlet; Described centrifugal impeller is coaxial sheathed mixed gas dish circumferentially.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310340328.3A CN103359832B (en) | 2013-08-06 | 2013-08-06 | Electrically pressurizing type submersible centrifugal aeration machine |
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| CN201310340328.3A CN103359832B (en) | 2013-08-06 | 2013-08-06 | Electrically pressurizing type submersible centrifugal aeration machine |
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| CN103359832A true CN103359832A (en) | 2013-10-23 |
| CN103359832B CN103359832B (en) | 2014-07-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105347519A (en) * | 2015-11-13 | 2016-02-24 | 徐州工程学院 | A nanobubble generator and applications thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04200699A (en) * | 1990-11-29 | 1992-07-21 | Shin Meiwa Ind Co Ltd | Underwater aerator |
| CN2835224Y (en) * | 2005-09-16 | 2006-11-08 | 河南中科环保产业有限公司 | Pressurized magnetized screw aerator |
| CN201132804Y (en) * | 2007-11-30 | 2008-10-15 | 上海东方泵业(集团)有限公司 | Submersible centrifugal aeration machine with stirring device |
| CN202729879U (en) * | 2012-07-06 | 2013-02-13 | 王大志 | Self-sufficient fan stirs pump diffusion oxygenation aeration machine |
| CN203451278U (en) * | 2013-08-06 | 2014-02-26 | 南京贝特环保通用设备制造有限公司 | Electronic pressurized submersible centrifugal aeration machine |
-
2013
- 2013-08-06 CN CN201310340328.3A patent/CN103359832B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04200699A (en) * | 1990-11-29 | 1992-07-21 | Shin Meiwa Ind Co Ltd | Underwater aerator |
| CN2835224Y (en) * | 2005-09-16 | 2006-11-08 | 河南中科环保产业有限公司 | Pressurized magnetized screw aerator |
| CN201132804Y (en) * | 2007-11-30 | 2008-10-15 | 上海东方泵业(集团)有限公司 | Submersible centrifugal aeration machine with stirring device |
| CN202729879U (en) * | 2012-07-06 | 2013-02-13 | 王大志 | Self-sufficient fan stirs pump diffusion oxygenation aeration machine |
| CN203451278U (en) * | 2013-08-06 | 2014-02-26 | 南京贝特环保通用设备制造有限公司 | Electronic pressurized submersible centrifugal aeration machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105347519A (en) * | 2015-11-13 | 2016-02-24 | 徐州工程学院 | A nanobubble generator and applications thereof |
| CN105347519B (en) * | 2015-11-13 | 2017-10-31 | 徐州工程学院 | A kind of nano-bubble generator and its application |
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| CN103359832B (en) | 2014-07-30 |
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