CN103466788A - Improved aerating rotating brush device and method capable of improving aeration capacity and saving energy - Google Patents
Improved aerating rotating brush device and method capable of improving aeration capacity and saving energy Download PDFInfo
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- CN103466788A CN103466788A CN2013104675374A CN201310467537A CN103466788A CN 103466788 A CN103466788 A CN 103466788A CN 2013104675374 A CN2013104675374 A CN 2013104675374A CN 201310467537 A CN201310467537 A CN 201310467537A CN 103466788 A CN103466788 A CN 103466788A
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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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Abstract
The invention belongs to the field of sewage treatment, and relates to an improved aerating rotating brush device and method capable of improving aeration capacity and saving energy, in particular to an improved aerating device capable of treating sewage by carrying out aeration in a mechanical rotating mode and a method capable of improving aeration capacity and saving energy. The improved aerating device and method mainly solve the problem that the aeration capacity of an existing aerating rotating brush is not fully utilized and energy consumption is high. The improved aerating rotating brush device comprises a motor, a transmission device, couplings, a water baffle, a main shaft, rotating brush blades, bearing pedestals and a supporting structure. The method includes the steps of first, setting the rotation rate of the main shaft to be 40-70r/min and the immersion depth to be 15mm, and second, starting the motor. The improved aerating device and method are applied to the field of sewage treatment.
Description
Technical field
The invention belongs to sewage treatment area, be specifically related to a kind ofly in the mechanical rotation mode, carry out the modified version aerating apparatus that aeration processed sewage and improve oxygenation capacity and the method for saving energy consumption.
Background technology
Along with socioeconomic development; sewage disposal has become the indispensable important step of protection Urban Water Environment; and the sewage water quantity and quality is all in continuous variation; along with the development of sewage disposal technology many outstanding sewage water treatment methods that have been born, wherein biological treatment has occupied main status in sewage disposal.In biologic treating technique, majority is the strengthening of having applied self purification of water body, and suitable envrionment conditions is provided, and utilizes microorganism to carry out purifying treatment to sewage.Aerobic activated sludge process has been proved to be a kind of effective sewage water treatment method in long-term development and application process, and create aerobic environment, is the key link very.Traditional aeration mode has blast aeration and mechanical aeration.The oxygenation capacity of blast aeration is better, and oxygen transfer efficiency is generally 30%, but the larger gas blower of blast aeration required power, and energy consumption is higher, the airline complexity; Mechanical aeration fully mixes waste water and mud in the activated sludge process aeration tank by mechanical means (as blade, impeller etc.), and the continuous renewal of mixed solution liquid level is contacted with air, increase the dissolved oxygen in water, although this method oxygenation capacity is inferior to blast aeration, but can be effectively the current oxygenation, and without complicated airline, and current are had to prograding preferably, and then often adopt in the techniques such as oxidation ditch.In existing straight aeration rotary brush device operational process, the water conservancy condition is poor, the waste energy consumption, and oxygenation capacity is generally 1.0-2.0kgO
2/ (kWh), oxygenation capacity is poor, and the oxygenation that more and more can not meet in sewage disposal has required.
Summary of the invention
The present invention will solve existing aeration rotary brush oxygenation capacity to fail the problem taken full advantage of and energy consumption is large, and a kind of oxygenation capacity and modified version aeration rotary brush apparatus and method of saving energy consumption of improving are provided.
Modified version aeration rotary brush device comprises electric motor, transmission mechanism, shaft coupling, water eliminator, main shaft, a plurality of brush blade, bearing support and supporting structure of turning;
Described main shaft is fixed by the supporting structure that is arranged on both sides, described main shaft is connected by shaft coupling with bearing support, describedly turn brush blade setting and be arranged on main shaft, described turning between brush blade and supporting structure is provided with water eliminator, described supporting structure one side is provided with transmission mechanism, be connected with electric motor on described transmission mechanism, it is characterized in that the described brush blade that turns adopts arcuate structure, turn the brush blade and be provided with and turn the brush perforation.
Improving oxygenation capacity carries out as follows with the method for saving energy consumption:
One, the main shaft slewing rate being set is 40～70r/min, and submergence H is 15mm;
Two, actuating motor, the brush blade that turns on main shaft carries out regular operation thereupon, with linear velocity 4～5m/s revolution, turns the brush blade in the process horizontally rotated with main shaft, airborne oxygen constantly is poured into water, has completed and improved oxygenation capacity and the method for saving energy consumption.
Principle of work:
During the operation of modified version brush aeration device, electric motor is started by electric control system controls, driving main shaft by transmission mechanism rotates, the brush blade that turns on main shaft carries out regular operation thereupon, with certain speed revolution, turn the brush blade in the process horizontally rotated with main shaft, airborne oxygen constantly is poured into water; In addition, by turning the running of brush blade, promote sewage and circulate in oxidation ditch with certain flow velocity, can prevent the precipitation of active sludge, can make again organism, microorganism fully mix and contact with oxygen, thus effectively reach oxidation ditch, the technique such as AAO to mixing, the needs of oxygenation; For the transformation of aeration rotary brush blade, guaranteed that air fully contacts with water, the hydraulics while greatly having optimized wheel rotation, thus reached the effect that improves oxygen transfer rate and save energy consumption.In operational process, owing to boring a hole on the radian of impeller and blade, motor can suitably improve rotating speed, thereby turn the mixing effect that brush produces in the unit time, can significantly strengthen.
The oxygen transport velocity (dC/dt) of mechanical aeration=K
la(C
s-C), the influence factor shifted at dirty water oxygen:
1. sewage quality/impurity; 2. water temperature; 3. oxygen partial pressure.
Oxygen partial pressure is relevant with travelling speed and the aeration rate of aeration rotary brush, while boring a hole on turning brush employing arc-shaped bend and blade, motor speed can suitably improve, and now the water oxygen dividing potential drop can increase greatly, thereby improved the oxygen transfer rate of aerator, thereby promoted the effect that aeration reaches.Because turn brush, take on blade perforation to process again, the resistance turned in the brush rotation process has reduced, thereby the power loss that is wasted in before blade rubbing etc. has reduced, so offer the available energy of aeration, has partly increased.In the deoxidation clear water oxygenation test of the aeration rotary brush of having taked these operations, the more traditional Mechanical aerator of the oxygenation capacity of aeration rotary brush device of the present invention has promoted nearly 30%.
The invention effect:
The improvement of utilization to existing straight blades, improved the oxygenation capacity of aeration rotary brush, and make aeration rotary brush can better resist flow resistance by structure of modification, frangibility not, increase the service life, turn the brush blade for the combination hood type, installation and maintenance are convenient, brushing piece is spiral arranges, enter water evenly, load steadily.Adopt self-aligning bearing, both can overcome certain installation error, can compensate again and turn the brush transverse axis because of stretching that the temperature difference causes, guarantee to turn the normal operation of brush, improve equipment life.
The present invention has made improvement for the straight not good problem of brush blade hydraulics that turns of tradition, main innovate point is to replace whole straight blades with the punched-type arc shaped blade, good hydraulics while having guaranteed operation, and then guarantee oxygen transfer rate and the oxygenation capacity that it is good.Traditional integral is straight, and to turn brush blade hydraulics not good, in rotating operational process, the resistance that whole straight blades is subject in rotation process is very big, according to force analysis, now rotational energy waste is more, and the transformation of blade should be the crooked arc of punched-type, and hydraulics is better like this, and arc shaped blade be should be antecurvature or palintrope through force analysis and experiment repeatedly, learn, swept-back vane is relatively saved energy.The runner of swept-back vane is milder, and camber is little, and the loss of trough inner water head is little, is conducive to improve the efficiency of impeller.Repeatedly determine through overtesting, finally think, antecurvature formula bending angle is between 45 °～70 ° the time, and its energy-saving effect is better.
The present invention is directed in the intact leaf operational process resistance large, the problem of serious wear, improved procedure is to bore a hole turning on the brush blade, the resistance while having reduced to turn the brush operation, the wearing and tearing while also having reduced operation.At the enterprising eleven punch 11 of blade, blade is in rotation process, current can pass aperture, and then the generation eddy current, the turbulent fluctuation effect that improves current, again because the perforation on blade, resistance in the blades turning process is less, cause like this power consumption of motor greatly to reduce, the wearing and tearing of blade reduce greatly, extend its work-ing life.
For the transformation of aeration rotary brush impeller, guaranteed that air fully contacts with water in the present invention, the hydraulics while greatly having optimized wheel rotation, thus reached effect energy-conservation and raising oxygen transfer rate and oxygenation capacity.In operational process, owing to boring a hole on the radian of impeller and blade, motor can suitably improve rotating speed, thereby turn the mixing effect that brush produces in the unit time, can significantly strengthen.
Adopt the modified version aeration rotary brush and utilize the modified version aeration rotary brush to improve oxygenation capacity and the method for saving energy consumption, operating depth can improve approximately 15%, and due to the structure of perforated vanes, motor speed can promote 20%, and the aeration rotary brush working life extends.
The accompanying drawing explanation
Fig. 1 is modified version aeration rotary brush side cutaway view of the present invention (Fig. 1 is the left view of Fig. 4); Wherein, the angle that α is arc shaped blade and rotating vane tangential direction, the degree of crook of sign blade;
Fig. 2 is modified version aeration rotary brush blade perforation schematic diagram of the present invention;
Fig. 3 is that modified version aeration rotary brush of the present invention is installed the effect front view;
Fig. 4 is the installation site figure of modified version aeration rotary brush blade of the present invention on main shaft.
Embodiment
Embodiment one: the modified version aeration rotary brush device of present embodiment comprises electric motor 1, transmission mechanism 2, shaft coupling 3, water eliminator 4, main shaft 5, a plurality of brush blade 6, bearing support 7 and supporting structure 8 of turning;
Described main shaft 5 is fixed by the supporting structure 8 that is arranged on both sides, described main shaft 5 is connected by shaft coupling 3 with bearing support 7, the described brush blade 6 that turns arranges and is arranged on main shaft 5, described brush blade 6 and 8 of the supporting structures of turning is provided with water eliminator 4, described supporting structure 8 one sides are provided with transmission mechanism 2, be connected with electric motor 1 on described transmission mechanism 2, it is characterized in that the described brush blade 6 that turns adopts arcuate structures, turn the brush blade and be provided with and turn brush perforation 9.
In present embodiment, turn brush blade 6 for the combination hood type, installation and maintenance are convenient, turn the brush blade enter water evenly, load steadily.
Improving oxygenation capacity carries out as follows with the method for saving energy consumption:
One, main shaft 5 slewing rates being set is 40～70r/min, and submergence H is 15mm;
Two, actuating motor 1, the brush blade that turns on main shaft carries out regular operation thereupon, with linear velocity 4～5m/s revolution, turns the brush blade in the process horizontally rotated with main shaft, airborne oxygen constantly is poured into water, has completed and improved oxygenation capacity and the method for saving energy consumption.
Principle of work:
During the operation of modified version brush aeration device, electric motor is started by electric control system controls, driving main shaft by transmission mechanism rotates, the brush blade that turns on main shaft carries out regular operation thereupon, with certain speed revolution, turn the brush blade in the process horizontally rotated with main shaft, airborne oxygen constantly is poured into water; In addition, by turning the running of brush blade, promote sewage and circulate in oxidation ditch with certain flow velocity, can prevent the precipitation of active sludge, can make again organism, microorganism fully mix and contact with oxygen, thus effectively reach oxidation ditch, the technique such as AAO to mixing, the needs of oxygenation; For the transformation of aeration rotary brush blade, guaranteed that air fully contacts with water, the hydraulics while greatly having optimized wheel rotation, thus reached the effect that improves oxygen transfer rate and save energy consumption.In operational process, owing to boring a hole on the radian of impeller and blade, motor can suitably improve rotating speed, thereby turn the mixing effect that brush produces in the unit time, can significantly strengthen.
The oxygen transport velocity (dC/dt) of mechanical aeration=K
la(C
s-C), the influence factor shifted at dirty water oxygen:
1. sewage quality/impurity; 2. water temperature; 3. oxygen partial pressure.
Oxygen partial pressure is relevant with travelling speed and the aeration rate of aeration rotary brush, while boring a hole on turning brush employing arc-shaped bend and blade, motor speed can suitably improve, and now the water oxygen dividing potential drop can increase greatly, thereby improved the oxygen transfer rate of aerator, thereby promoted the effect that aeration reaches.Because turn brush, take on blade perforation to process again, the resistance turned in the brush rotation process has reduced, thereby the power loss that is wasted in before blade rubbing etc. has reduced, so offer the available energy of aeration, has partly increased.In the deoxidation clear water oxygenation test of the aeration rotary brush of having taked these operations, the more traditional Mechanical aerator of the oxygenation capacity of aeration rotary brush device of the present invention has promoted nearly 30%.
The present embodiment effect:
The improvement of utilization to existing straight blades, improved the oxygenation capacity of aeration rotary brush, and make aeration rotary brush can better resist flow resistance by structure of modification, frangibility not, increase the service life, turn the brush blade for the combination hood type, installation and maintenance are convenient, brushing piece is spiral arranges, enter water evenly, load steadily.Adopt self-aligning bearing, both can overcome certain installation error, can compensate again and turn the brush transverse axis because of stretching that the temperature difference causes, guarantee to turn the normal operation of brush, improve equipment life.
Present embodiment has been made improvement for the straight not good problem of brush blade hydraulics that turns of tradition, main innovate point is to replace whole straight blades with the punched-type arc shaped blade, good hydraulics while having guaranteed operation, and then guarantee oxygen transfer rate and the oxygenation capacity that it is good.Traditional integral is straight, and to turn brush blade hydraulics not good, in rotating operational process, the resistance that whole straight blades is subject in rotation process is very big, according to force analysis, now rotational energy waste is more, and the transformation of blade should be the crooked arc of punched-type, and hydraulics is better like this, and arc shaped blade be should be antecurvature or palintrope through force analysis and experiment repeatedly, learn, swept-back vane is relatively saved energy.The runner of swept-back vane is milder, and camber is little, and the loss of trough inner water head is little, is conducive to improve the efficiency of impeller.Repeatedly determine through overtesting, finally think, antecurvature formula bending angle is between 45 °～70 ° the time, and its energy-saving effect is better.
Present embodiment is large for resistance in the intact leaf operational process, the problem of serious wear, and improved procedure is to bore a hole on blade turning brush, the resistance while having reduced to turn the brush operation, the wearing and tearing while also having reduced operation.At the enterprising eleven punch 11 of blade, blade is in rotation process, current can pass aperture, and then the generation eddy current, the turbulent fluctuation effect that improves current, again because the perforation on blade, resistance in the blades turning process is less, cause like this power consumption of motor greatly to reduce, the wearing and tearing of blade reduce greatly, extend its work-ing life.
For the transformation of aeration rotary brush impeller, guaranteed that air fully contacts with water in present embodiment, the hydraulics while greatly having optimized wheel rotation, thus reached effect energy-conservation and raising oxygen transfer rate and oxygenation capacity.In operational process, owing to boring a hole on the radian of impeller and blade, motor can suitably improve rotating speed, thereby turn the mixing effect that brush produces in the unit time, can significantly strengthen.
Adopt the modified version aeration rotary brush and utilize the modified version aeration rotary brush to improve oxygenation capacity and the method for saving energy consumption, operating depth can improve approximately 15%, and due to the structure of perforated vanes, motor speed can promote 20%, and the aeration rotary brush working life extends.
Embodiment two: present embodiment is different from embodiment one: described electric motor 1 is by electric control system controls.Other step and parameter are identical with embodiment one.
Embodiment three: present embodiment is different from embodiment one or two: the described brush blade 6 that turns adopts the combination hood type with being connected of main shaft 5, turns brush blade 6 and arranges along the axial employing spiral of main shaft 5.Other step and parameter are identical with embodiment one or two.
Embodiment four: present embodiment is different from one of embodiment one to three: described brush blade 6 crooked radians that turn are 45～70 degree, vertical cross section is rectangle, width is 40cm, and the installing space on rotation axis is 20cm, and on blade, penetration hole diameter is 5～10cm.Other step and parameter are identical with one of embodiment one to three.
Embodiment five: present embodiment is different from one of embodiment one to four: the described brush blade 6 that turns adopts metallic substance or macromolecular material to make.Other step and parameter are identical with one of embodiment one to four.
Embodiment six: present embodiment is different from one of embodiment one to five: described main shaft 5 is connected by shaft coupling 3 with bearing support 7, and mode of connection adopts self-aligning bearing.Other step and parameter are identical with one of embodiment one to five.
Embodiment seven: improve oxygenation capacity and carry out as follows with the method for saving energy consumption:
One, main shaft 5 slewing rates being set is 40～70r/min, and submergence H is 15mm;
Two, actuating motor 1, the brush blade that turns on main shaft carries out regular operation thereupon, with linear velocity 4～5m/s revolution, turns the brush blade in the process horizontally rotated with main shaft, airborne oxygen constantly is poured into water, has completed and improved oxygenation capacity and the method for saving energy consumption.
Claims (7)
1. one kind is improved oxygenation capacity and the modified version aeration rotary brush device of saving energy consumption, and modified version aeration rotary brush device comprises electric motor (1), transmission mechanism (2), shaft coupling (3), water eliminator (4), main shaft (5), a plurality of brush blade (6), bearing support (7) and supporting structure (8) of turning;
Described main shaft (5) is fixed by the supporting structure (8) that is arranged on both sides, described main shaft (5) is connected by shaft coupling (3) with bearing support (7), the described brush blade (6) that turns arranges and to be arranged on main shaft (5), described turning between brush blade (6) and supporting structure (8) is provided with water eliminator (4), described supporting structure (8) one sides are provided with transmission mechanism (2), be connected with electric motor (1) on described transmission mechanism (2), it is characterized in that the described brush blade (6) that turns adopts arcuate structure, turn the brush blade and be provided with and turn brush perforation (9).
2. a kind of oxygenation capacity and modified version aeration rotary brush device of saving energy consumption of improving according to claim 1, is characterized in that described electric motor (1) is by electric control system controls.
3. a kind of oxygenation capacity and modified version aeration rotary brush device of saving energy consumption of improving according to claim 1, it is characterized in that the described brush blade (6) that turns adopts the combination hood type with being connected of main shaft (5), turns brush blade (6) and arranges along the axial employing spiral of main shaft (5).
4. according to claim 1,2 or 3 described a kind of oxygenation capacity and modified version aeration rotary brush devices of saving energy consumption of improving, it is characterized in that described brush blade (6) the crooked radian α that turns is 45～70 degree, vertical cross section is rectangle, width is 40cm, installing space on rotation axis is 20cm, and on blade, penetration hole diameter is 5～10cm.
5. a kind of oxygenation capacity and modified version aeration rotary brush device of saving energy consumption of improving according to claim 1, is characterized in that the described brush blade (6) that turns adopts metallic substance or macromolecular material to make.
6. a kind of oxygenation capacity and modified version aeration rotary brush device of saving energy consumption of improving according to claim 1, is characterized in that described main shaft (5) is connected by shaft coupling (3) with bearing support (7), and mode of connection adopts self-aligning bearing.
7. a kind of control method that improves oxygenation capacity and the aeration rotary brush device of saving energy consumption as claimed in claim 1 is characterized in that improving oxygenation capacity and carries out as follows with the method for saving energy consumption:
One, main shaft (5) slewing rate being set is 40～70r/min, and submergence H is 15mm;
Two, actuating motor (1), the brush blade that turns on main shaft carries out regular operation thereupon, with linear velocity 4～5m/s revolution, turns the brush blade in the process horizontally rotated with main shaft, airborne oxygen constantly is poured into water, has completed and improved oxygenation capacity and the method for saving energy consumption.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013104675374A CN103466788A (en) | 2013-10-09 | 2013-10-09 | Improved aerating rotating brush device and method capable of improving aeration capacity and saving energy |
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| CN2013104675374A CN103466788A (en) | 2013-10-09 | 2013-10-09 | Improved aerating rotating brush device and method capable of improving aeration capacity and saving energy |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106145398A (en) * | 2015-04-05 | 2016-11-23 | 赵洪喜 | A kind of sewage disposal horizontal axle rotating brush type aerator |
| CN107381793A (en) * | 2017-08-08 | 2017-11-24 | 凌志环保股份有限公司 | A kind of brush aeration device |
| CN109266524A (en) * | 2018-09-21 | 2019-01-25 | 中国科学院生态环境研究中心 | A kind of closed micro-organism aerosol generating apparatus |
| CN110078233A (en) * | 2019-05-31 | 2019-08-02 | 凌志环保股份有限公司 | A kind of cylinder tank body plate-spinning surface aeration machine mounting structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201560144U (en) * | 2009-11-04 | 2010-08-25 | 北京基亚特环保工程有限公司 | Novel rotary brush aerator |
| CN101844835A (en) * | 2009-03-25 | 2010-09-29 | 江苏凌志环保有限公司 | Aeration rotary brush |
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2013
- 2013-10-09 CN CN2013104675374A patent/CN103466788A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844835A (en) * | 2009-03-25 | 2010-09-29 | 江苏凌志环保有限公司 | Aeration rotary brush |
| CN201560144U (en) * | 2009-11-04 | 2010-08-25 | 北京基亚特环保工程有限公司 | Novel rotary brush aerator |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106145398A (en) * | 2015-04-05 | 2016-11-23 | 赵洪喜 | A kind of sewage disposal horizontal axle rotating brush type aerator |
| CN107381793A (en) * | 2017-08-08 | 2017-11-24 | 凌志环保股份有限公司 | A kind of brush aeration device |
| CN109266524A (en) * | 2018-09-21 | 2019-01-25 | 中国科学院生态环境研究中心 | A kind of closed micro-organism aerosol generating apparatus |
| CN109266524B (en) * | 2018-09-21 | 2021-07-06 | 中国科学院生态环境研究中心 | Closed microorganism aerosol generating device |
| CN110078233A (en) * | 2019-05-31 | 2019-08-02 | 凌志环保股份有限公司 | A kind of cylinder tank body plate-spinning surface aeration machine mounting structure |
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Application publication date: 20131225 |