CN102120642A - Aeration rotary brush - Google Patents
Aeration rotary brush Download PDFInfo
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- CN102120642A CN102120642A CN201110031458XA CN201110031458A CN102120642A CN 102120642 A CN102120642 A CN 102120642A CN 201110031458X A CN201110031458X A CN 201110031458XA CN 201110031458 A CN201110031458 A CN 201110031458A CN 102120642 A CN102120642 A CN 102120642A
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- blade
- rotary brush
- water
- brush
- aeration rotary
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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 relates to improvement of an aeration rotary brush for water treatment. The aeration rotary brush is characterized in that the section of the blade of the rotary brush is in a triangle or a triangle-like shape; the aeration rotary brush is installed on a hub shaft so that triangle sharp cone enters water firstly when the aeration rotary brush turns into water. When the rotary brush rapidly turns into water, the tip end of the blade rushes into water, thereby greatly reducing resistance when the blade enters into water and operates in water, further reducing operation energy consumption and improving oxygenation dynamic efficiency; and since the resistance generated when the blade enters in water and operates in water is small, the problem that the blade is easy to deform and break after long-term operation under large resistance when entering water is overcome, the long service life of the blade is ensured, oxygenation capability and plug flow velocity can be improved through improving rotation speed, the maximum work water depth of a one-meter aeration rotary brush is as high as 5 meters; and by pits and/or lugs on side surfaces of the blade, plug flow dynamics and oxygenation efficiency both can be improved. Compared with a traditional rotary brush blade with the same specification, the aeration rotary brush provided by the invention has the advantages that the oxygenation capability is improved by 35%, the length per meter reaches 11.1 kgO2/h, the overall dynamic efficiency is improved by 25% under the same electricity consumption, and dynamic efficiency can reach 3.125 kgO2/kw.h.
Description
Technical field
The present invention is to the improvement of water treatment with aeration rotary brush, relates in particular to a kind of power efficiency of oxygen supply height, and entry and running resistance are little, the aeration rotary brush of long service life.
Background technology
It is higher with respect to rotary speed to change brush, and being used for water treatment, to have a plug-flow flow velocity fast, the oxygen-transfer efficiency height, and this is its advantage.But dynamic efficiency is low, and limited by blade strength, and diameter is generally all less than 1 meter, so the relative rotating disk of operating depth is more shallow, and operating depth generally is no more than 3.5 meters, and this is its deficiency.Prior art aeration rotary brush, basic structure comprise the center hub axle and be fixed on commentaries on classics brush blade that is radial setting around it, typically as described in Chinese patent CN2175226, the CN2216524.People further improve to change the brush oxygenation capacity, have done some improvement to changeing the brush blade, and for example the described commentaries on classics brush of Chinese patent CN2425920 blade is provided with groove in the middle of leaf cross-section, improves oxygenation capacity; The shearing blade of Chinese patent CN2157188 transverse axis brush aeration machine, zigzag structure is adopted in its both sides.Application is artificial reduce the straight blades entry and in water running resistance, prevent blade long-time running distortion and fracture, and improve operating depth, propose to adopt crooked arc shaped blade (Chinese patent CN201386040).But no matter which kind of blade done improve, the existing brush blade pair cross-section structure of changeing does not make improvements, no matter be straight or arc shaped blade, all is the plane panel construction.
The plane panel construction changes the brush blade, and high rotating speed changes in the water when work, and the blade whole plane strikes waters, not only to go into water resistance big for blade, increased power consumption, starting current and running current are all bigger, and this also is to cause dynamic efficiency to be usually less than a reason of rotating disk; And the high speed entry water surface is big to the plane blade surging force, and long time continuous working causes blade (metal or macromolecular material) bending easily, fractures at last, causes shorten work-ing life, has increased the maintain and replace workload; Secondly, plane blade running resistance in water is big, cause rotating speed can not improve (80 rev/mins of existing maximum speeds), therefore be difficult to improve oxygen-transfer efficiency by improving rotating speed again, and consider and clap water and running resistance and operation energy consumption, width of blade also is limited usually, for example is generally 8cm, and this has also limited the oxygen-transfer efficiency raising.Besides, because of resistance makes that greatly rotating speed is limited, little to the bottom water flow reactive force thus, thereby it is little to bottom plug-flow ability, easily cause the easily heavy mud of oxidation ditch, make operating depth more shallow relatively, for example diameter is traditional aeration rotary brush of 1 meter, the general work depth of water is restricted to 3.0-3.5 rice (mud does not precipitate flow velocity need 〉=0.15m/s in the water treatment ditch, and mean flow rate is 0.3 m/s in the maintenance ditch).For this reason, people usually can only be in brush aeration device downstream about 3 meters flow deflector is set, increase bottom velocity by reducing surface velocity.Though increased bottom velocity and increased operating depth yet flow deflector is set, also can improve oxygenation capacity, but set up flow deflector and can increase flow resistance, worsen the waterpower proterties, and the increase operation energy consumption, test shows increases flow deflector need increase the 15%-30% power consumption, thereby the actual overall dynamic efficiency does not only improve, descend to some extent on the contrary, actual and uneconomical.And if flow deflector designs inconsiderately, also can cause in the oxidation ditch change of level bigger, for example water level reduces and makes flow-stopping plate reveal the top, causes the serious hydraulic jump phenomenon that dabbles, and this phenomenon often has generation in the brush aeration oxidation ditch process.Therefore, change the brush blade and still remain improved place.Yet changeing brush plane lath blade, all has been so since the invention of rotation brush, does not all change, and mainly is to it is believed that to form plug-flow that the certain width face must be arranged, and thinks that the oxygenation that strikes waters also needs certain width.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, and a kind of power efficiency of oxygen supply height is provided, and entry and running resistance are little, the aeration rotary brush of long service life.
The object of the invention realizes, the main improvement is straight blades or the crooked arc shaped blade that the cross section is two dimensional structure, making the cross section into is triangle or class trilateral, make that changeing the brush blade is changing the water surface over to, the pyrometric cone point has one " splitting water " effect (first entry of blade point, cut in the water gradually according to wide bottom, inclined-plane then), can reduce greatly into water resistance, also reduced simultaneously running resistance in water, entry and running resistance are little, not only reduced damage, prolonged blade work-ing life, and power consumption reduces and also improved power efficiency of oxygen supply blade; In addition, resistance reduces, and also helps the raising travelling speed, thereby also can improve power efficiency of oxygen supply, thereby overcome above-mentioned the deficiencies in the prior art, realizes the object of the invention.Specifically, aeration rotary brush of the present invention, comprise the center hub axle and be fixed on the commentaries on classics brush blade that its circumference is radial setting, it is characterized in that said commentaries on classics brush blade section is triangle or class trilateral, on hub spindle, install when changing the water surface over to the entry of triangled tip conical surface elder generation.
The said blade section of the present invention is triangle or class trilateral, and it can be a standard wedge angle trilateral, also can be a little big similar trilateral, and for example wedge angle is the trilateral of circular arc, and it is one faceted similar trapezoidal that wedge angle has.
In addition, change the brush oxygenation capacity in order further to improve, a kind ofly more preferably be shaped on alternate pit and/or projection in the delta-blade two sides, carrying more air by blade side pit (for example circular) enters in the water, when producing the water surface pit again portability part water droplet throw in the air, the increase water droplet contacts with air, and both have improved oxygenation capacity at acting in conjunction; Blade side projection (for example triangular bump, trapezoidal projection) had both helped strengthening the plug-flow effect, and increased and to bring contacting of air and air and water into, can improve oxygenation capacity equally.A kind ofly better can also also be manufactured with alternate pit, strengthen when blade produces and throw water function, can increase oxygenation capacity equally on back side (wide end face, pointed cone opposite).Circular pit and trilateral, trapezoidal projection help adopting the macromolecular material compression molding demoulding.
Change brush blade sharp conical surface and can also be processed into spination, this also helps improving oxygenation capacity.
Change brush blade radial top end face, a kind of better is also can make triangle body, also helps reducing entry and rotates operation end resistance, and strengthen the anti-ability that fractures of blade tip.
It is fixing on hub spindle to change the brush blade, and its root both sides can increase strengthening rib strip, and this structure helps strengthening root of blade and hub spindle strength of joint.
The said commentaries on classics brush of the present invention blade can be a straight structure, also can be arcuate structure.
Change the brush blade, same prior art, can adopt metal blade, wherein a kind of better employing macromolecular material (for example glass fiber resin base reinforced plastics) compression molding, help improving labor productivity, and can make commentaries on classics brush blade become whole syndeton with hub spindle, trouble is installed thereby reduce blade.The mold pressing blade, a kind of is to adopt symmetrical halves, the structure that makes up after the moulding, this structure formation helps the mold pressing demoulding.
Aeration rotary brush of the present invention, because it is plane blade that employing is different from the prior art cross section, adopt the cross section to be triangle or class triangular vane, and make blade entry and operation from the triangle pointed cone, change brush like this and change the water surface fast over to, in point of blade elder generation " splitting " water, greatly reduced the blade entry and running resistance in water, thereby reduced operation energy consumption, improved power efficiency of oxygen supply, compared dynamic efficiency with same specification tradition aeration rotary brush equipment and improve 20%; Entry simultaneously and running resistance are little, have overcome blade and have gone into the problem that water resistance greatly enhances phase operation distortion and fractures, and guarantee the work-ing life that blade is long.The pit of blade two sides and/or projection not only can improve plug-flow power, and have improved oxygen-transfer efficiency.And entry and running resistance are little, can also improve oxygenation capacity by improving rotating speed, in addition, the raising of rotating speed (identical consumed power can improve rotating speed 25%), improved the plug-flow flow velocity, thereby can strengthen operating depth, and test comparison diameter is 1 meter a aeration rotary brush, operating depth reaches as high as 5 meters.Aeration rotary brush of the present invention, existing same specification changes the brush blade, and oxygenation capacity can improve 35%, and every meter length can reach 11.1kgO
2/ h, integral power efficient can improve 25% under the identical power consumption, and dynamic efficiency can reach 3.125kgO
2/ kw.h.Aeration rotary brush of the present invention adopts cross section triangle or class triangular vane, reaches and improved oxygen-transfer efficiency when cutting down the consumption of energy, and prolonged work-ing life.
Below in conjunction with two specific embodiments; essence of the present invention is further understood in exemplary illustration and help; but the embodiment detail only is for the present invention is described; do not represent the present invention to conceive whole technical schemes down; therefore should not be construed as the technical scheme qualification total to the present invention, some are In the view of the technician, and the unsubstantiality that does not depart from the present invention's design increases and/or change; for example simple the change or replacement of technical characterictic to have same or similar technique effect all belongs to protection domain of the present invention.
Description of drawings
Fig. 1 is the aeration rotary brush first example structure synoptic diagram of the present invention.
Fig. 2 is the side-looking structural representation of Fig. 1.
Fig. 3 changes brush blade section synoptic diagram for Fig. 1.
Fig. 4 changes brush vane end faces synoptic diagram for Fig. 1.
Fig. 5 changes brush blade side synoptic diagram for Fig. 1.
Fig. 6 changes brush blade end face synoptic diagram for Fig. 1.
Fig. 7 changes brush blade side synoptic diagram for aeration rotary brush second embodiment of the present invention.
Embodiment
Embodiment 1: referring to Fig. 1-6, aeration rotary brush of the present invention is made up of central shaft 1 and the straight commentaries on classics brush of the radial fixed of periphery blade 2, and its transfer brush blade section is triangular in shape, it is fixing in rotating shaft to change the brush blade, so that blade triangle pointed cone elder generation entry during the aeration rotary brush operation.Change that brush blade triangle two sides are alternate respectively circular pit 3 and a triangular bump 4 (wherein projection triangle and blade section triangle are in the same way), the adjacent blades upper protruding block is staggered, back side (triangle end face) 5 has alternate circular pit 6, vane end faces (Fig. 4) also triangular in shape.Change the brush blade by galss fiber reinforced resin mold pressing symmetric two involutory compositions, it is fixing on hub spindle to change the brush blade, and its root both sides have strengthening rib strip root of blade both sides that strengthening rib strip is arranged.
Embodiment 2: referring to Fig. 7, and as embodiment 1, its transfer brush blade two sides triangular bump 4 and opposite setting of commentaries on classics brush blade section triangle, changeing brush blade triangled tip tapering has sawtooth 7.
To those skilled in the art; under this patent design and specific embodiment enlightenment; some distortion that can directly derive or associate from this patent disclosure and general knowledge; for example those of ordinary skills will recognize also and can adopt additive method; or the substituting of known technology commonly used in the prior art; and the mutual various combination between feature; for example changeing the brush blade can be an integral body; change the change of brush blade material; for example other resin base fortifying fibres or other macromolecular materials; metal blade; blade is fixedlyed connected the change of mode with hub spindle; pit; the change of projection shape, or have only pit or projection separately, or two sides do not have pit; projection; blade can also be crooked arc; or the like these unsubstantialities change, can be employed equally, can both realize and basic identical function of the foregoing description and effect; launch for example no longer one by one to describe in detail, all belong to this patent protection domain.
Claims (9)
1. aeration rotary brush comprises the center hub axle and is fixed on the commentaries on classics brush blade that its circumference is radial setting, it is characterized in that said commentaries on classics brush blade section is triangle or class trilateral, installs on hub spindle when changing the water surface over to the entry of triangled tip conical surface elder generation.
2. according to the described aeration rotary brush of claim 1, it is characterized in that there are alternate pit and/or projection in the delta-blade two sides.
3. according to the described aeration rotary brush of claim 2, it is characterized in that the delta-blade back side has alternate pit.
4. according to the described aeration rotary brush of claim 1, it is characterized in that changeing brush blade radial top end face and become triangle body.
5. according to the described aeration rotary brush of claim 1, it is characterized in that blade is by the compression molding of fiber resin matrix reinforced plastics.
6. according to the described aeration rotary brush of claim 5, it is characterized in that blade is made up of symmetrical two semi-involutions.
7. according to claim 1,2,3,4,5 or 6 described aeration rotary brushs, it is characterized in that blade sharp conical surface engrail.
8. according to claim 1,2,3,4,5 or 6 described aeration rotary brushs, it is fixing on hub spindle to it is characterized in that changeing the brush blade, and there is strengthening rib strip its root both sides.
9. according to claim 2 or 3 described aeration rotary brushs, it is characterized in that pit is circular, projection is a triangular shape or trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110031458XA CN102120642A (en) | 2011-01-29 | 2011-01-29 | Aeration rotary brush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110031458XA CN102120642A (en) | 2011-01-29 | 2011-01-29 | Aeration rotary brush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102120642A true CN102120642A (en) | 2011-07-13 |
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ID=44249328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110031458XA Pending CN102120642A (en) | 2011-01-29 | 2011-01-29 | Aeration rotary brush |
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| CN (1) | CN102120642A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105565520A (en) * | 2014-11-11 | 2016-05-11 | 凌志环保股份有限公司 | Aeration rotary disk with lugs |
| CN107381793A (en) * | 2017-08-08 | 2017-11-24 | 凌志环保股份有限公司 | A kind of brush aeration device |
| CN108862570A (en) * | 2018-07-24 | 2018-11-23 | 黄志优 | A kind of self-cleaning aeration tank with brush-wash function |
| CN113402024A (en) * | 2021-05-26 | 2021-09-17 | 山东华城城建设计工程有限公司 | Sewage denitrification treatment device and process method thereof |
| CN114538632A (en) * | 2022-03-04 | 2022-05-27 | 浙江金佰利环境科技有限公司 | Frequency conversion jet aeration device for improving dissolved oxygen in water |
-
2011
- 2011-01-29 CN CN201110031458XA patent/CN102120642A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105565520A (en) * | 2014-11-11 | 2016-05-11 | 凌志环保股份有限公司 | Aeration rotary disk with lugs |
| CN105565520B (en) * | 2014-11-11 | 2018-06-15 | 凌志环保股份有限公司 | A kind of aeration turn plate containing convex block |
| CN107381793A (en) * | 2017-08-08 | 2017-11-24 | 凌志环保股份有限公司 | A kind of brush aeration device |
| CN108862570A (en) * | 2018-07-24 | 2018-11-23 | 黄志优 | A kind of self-cleaning aeration tank with brush-wash function |
| CN108862570B (en) * | 2018-07-24 | 2021-05-14 | 湖州光正水质净化有限公司 | Self-cleaning aeration tank with scrubbing function |
| CN113402024A (en) * | 2021-05-26 | 2021-09-17 | 山东华城城建设计工程有限公司 | Sewage denitrification treatment device and process method thereof |
| CN114538632A (en) * | 2022-03-04 | 2022-05-27 | 浙江金佰利环境科技有限公司 | Frequency conversion jet aeration device for improving dissolved oxygen in water |
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| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110713 |