CN104326580B - A kind of sewage disposal micro-hole aerator - Google Patents
A kind of sewage disposal micro-hole aerator Download PDFInfo
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- CN104326580B CN104326580B CN201410577564.1A CN201410577564A CN104326580B CN 104326580 B CN104326580 B CN 104326580B CN 201410577564 A CN201410577564 A CN 201410577564A CN 104326580 B CN104326580 B CN 104326580B
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- aerator
- distribution plate
- air distribution
- micro
- diaphragm
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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
- C02F7/00—Aeration of stretches of water
-
- 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
-
- 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)
- 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 discloses a kind of sewage disposal micro-hole aerator, it comprises aerator diaphragm, rectification air distribution plate and base for supporting; Described rectification air distribution plate is fixed on described base for supporting, and and form an airtight chamber between described base for supporting; The outer wall of described rectification air distribution plate attaches described aerator diaphragm, and described aerator diaphragm is provided with some solarization air caps; Described rectification air distribution plate is provided with some flow channels, and described flow channel is connected with described solarization air cap with described airtight chamber; The bottom of described base for supporting is provided with an inlet mouth.Described rectification air distribution plate is micro-arch, protruding to aeration direction; Along aeration direction, the projection plane of described rectification air distribution plate is rectangle.The material of described aerator diaphragm is urethane.On described aerator diaphragm, adjacent two arrange between described solarization air cap as being crisscross arranged.The effective aeration area of micro-hole aerator of the present invention large and evenly, oxygenation capacity is strong, coefficient of oxygen utilization is high, Stability Analysis of Structures, installation and maintenance are easy and material capability good.
Description
Technical field
The present invention relates to a kind of sewage disposal micro-hole aerator, belong to sewage treatment area.
Background technology
The energy consumption of sewage work 45-75% is for aeration, and operation expense is high.So the oxygenation capacity and the structural stability that improve aerator are not only conducive to saving energy and reduce the cost, and also can ensure the steady running of whole aerating system.So need the structure to micro-hole aerator, function is optimized, even innovate.
Micro-hole aerator is the nucleus equipment of blast aeration oxygenation in sewage disposal.Now, sewage work's widely used micro-hole aerator shape is generally tubular type, disc type, board-like; Material is pottery, plastics, terpolymer EP rubber (EPDM) mainly; Yet there are no that material is urethanes, shape is the board-like micro-hole aerator of micro-arch.The Air Bubble Size of the generation of aerator is determined by aperture and pitch of holes, directly affects the oxygen transfer efficiency (SOTE) of aeration.In general, the bubble of generation is less, and gas liquid interfacial area is larger, is more conducive to oxygen transfer; But bubble is little, the drag losses of micro-hole aerator increases simultaneously; Rational pitch of holes not only can avoid the also poly-of bubble, can also reduce aeration resistance, and then improve oxygen transfer efficiency (SOTE).Aerator effective aeration film area is larger, and aeration film flux is larger, is more beneficial to oxygen transfer.In addition, aerator should construct science, Stability Analysis of Structures, and aeration film answers anti-pollution, anticorrosive, is so just beneficial to long-term, stable, the Effec-tive Function of aerating system.And tubular type and disc microporosity aeration unit are given vent to anger now, and area is low, the waste of part aeration area, easily produce pressure reduction in operational process, cause air flow method uneven, oxygen transfer efficiency is low.Plate-type micro-pore aerator drag losses is comparatively large, gas-liquid agitation ability.Frangible, the easy blocking of corundum ceramic material, non-easy cleaning.Ethylene Propylene Terpolymer (EPDM) rubber stable against biological contamination, oil resistance are poor, and high pressure height air flow is easily torn under running.Existing rubber film micro hole aerator material physicochemical property is lower, be not optimized according to different process and operating mode, transform, and manufacture craft is also comparatively coarse, causes aerator stability, uniform air distribution, aperture and pitch of holes homogeneity poor.
Summary of the invention
The object of this invention is to provide a kind of sewage disposal micro-hole aerator, this micro-hole aerator shape, scientific and reasonable for structure, material capability is good.Effective aeration area large and evenly, oxygenation capacity is strong, coefficient of oxygen utilization is high, Stability Analysis of Structures, installation and maintenance are easy.
Sewage disposal micro-hole aerator provided by the invention, it comprises aerator diaphragm, rectification air distribution plate and base for supporting;
Described rectification air distribution plate is fixed on described base for supporting, and and form an airtight chamber between described base for supporting;
The outer wall of described rectification air distribution plate attaches described aerator diaphragm, and described aerator diaphragm is provided with some solarization air caps;
Described rectification air distribution plate is provided with some flow channels, and the two ends of described flow channel are connected with described solarization air cap with described airtight chamber respectively;
The bottom of described base for supporting is provided with an inlet mouth.
In use, foreign gas enters in described airtight chamber from described inlet mouth above-mentioned micro-hole aerator, discharges, form bubble and realize aeration in sewage along described flow channel from the described solarization air cap described aerator diaphragm.
In above-mentioned micro-hole aerator, the inwall of described rectification air distribution plate is provided with a groove, described groove is connected with the Single port of described flow channel, namely the Single port of described groove is located on the sidewall of described groove, described groove accumulates an inlet end the gas inlet end of some described flow channels, flow in flow channel described in each bar by described groove after foreign gas enters described airtight chamber, and then play buffering air pressure and aeration acts on uniformly, reduce high-throughput and run shock action to aerator top.
In above-mentioned micro-hole aerator, described flow channel distributes radially centered by described groove.
In above-mentioned micro-hole aerator, described inlet mouth place connects a ventpipe, realizes aeration by following two kinds of modes:
1) the other end of described ventpipe is communicated with described groove, and foreign gas is directly discharged along described flow channel from described solarization air cap from described ventpipe;
2) the other end of described ventpipe is free end, foreign gas is diffused in described airtight chamber from described ventpipe, further, the gas stored in groove is discharged along described flow channel from described solarization air cap, this principle is identical with principle when not arranging described ventpipe, and the setting of described ventpipe can conveniently be connected with air line.
In above-mentioned micro-hole aerator, described rectification air distribution plate is micro-arch, protruding to aeration direction; Along aeration direction, the projection plane of described rectification air distribution plate is rectangle, i.e. micro-arch plank frame, combines tubular type in prior art, board-like, the shape of disc type aerator, the feature of structure, effective aeration area is large, and the ability that is uniformly mixed is strong and coalescence is less likely to occur bubble.
In above-mentioned micro-hole aerator, because described rectification aerator and described base for supporting seal, along its length, the central angle variation range corresponding to described rectification air distribution plate cambered surface is 10 ~ 30 degree, and the central angle of the camber line at the vertex place of described rectification air distribution plate can be 20 degree ~ 30 degree.
In above-mentioned micro-hole aerator, the effective aspect ratio of described rectification air distribution plate and described aerator diaphragm is 5:1 ~ 10:1, the useful length of described aerator diaphragm is specially 1000mm, effective width specifically can be 200mm, larger long-width ratio is conducive to reducing aeration resistance, avoids the local deformaton of described aerator diaphragm.
In above-mentioned micro-hole aerator, the material of described aerator diaphragm is urethane, full name is polyurethane(s), English polyurethane by name, affiliated aerator diaphragm specifically can be obtained after cutting by urethanes, its good physical and chemical properties, has acid and alkali-resistance, oil resistant, stable against biological contamination, the advantages such as intensity is high, lear energy is strong;
The thickness of described aerator diaphragm is 0.5 ~ 1.0mm, and the thickness of conventional three-way ethylene-propylene rubber(EPR) diaphragm is 1.8 ~ 3.8mm, and adopt urethanes film aeration resistance greatly to reduce, in aeration process, drag losses reduces, and improves aeration efficiency, is conducive to saving energy and reduce the cost.
In above-mentioned micro-hole aerator, described aerator diaphragm is provided with some solarization air caps, and described solarization air cap specifically can be covered with described aerator diaphragm;
Described aerator diaphragm is provided with the described solarization air cap of some rows, and is arranged in parallel;
For being crisscross arranged between the described solarization air cap of adjacent two row, effectively can reduce aeration resistance, under equal conditions, also can increase polyurethane film tensile strength, specifically can to rubber diaphragm of polyurethane mechanical punching by the default lathe computer program of basis and round pin mould;
The aperture of described solarization air cap is 100 ~ 300 μm, the bubble that size is 0.8 ~ 1.5mm can be produced, the Air Bubble Size that traditional rubber membrane micropore aerator produces is 1.0 ~ 3.0mm, the bubble that aerator of the present invention produces is little, increases specific surface area, and coefficient of oxygen utilization improves, oxygenation capacity significantly improves, pitch of holes size arranges rationally, can prevent bubble and the generation of poly-phenomenon, improve oxygen transfer efficiency.
In above-mentioned micro-hole aerator, described base for supporting periphery is provided with draw-in groove and hickey, and described aerator diaphragm and described rectification air distribution plate are fixed in described draw-in groove, adopts the structure formation of housing compacting locking simultaneously, under avoiding high pressure high tolerance condition, rubber model washes from base for supporting.
Described inlet mouth place is provided with a hickey, and described hickey is connected with described ventpipe, is specifically connected with air line by micro-hole aerator of the present invention by described hickey, for aerator of the present invention provides source of the gas.
Tool of the present invention has the following advantages:
(1) aperture of micro-hole aerator of the present invention and pitch of holes are rationally, evenly, can effectively optimize to produce bubble size, reduce bubble and poly-phenomenon; Coefficient of oxygen utilization can be improved, effectively reduce aeration resistance.
(2) micro-hole aerator of the present invention adopts micro-arch plate-like construction, enhances micro-hole aerator resistance to overload shock power and structural stability; Make effective aeration area reach maximization, reduce bubble and gather, improve coefficient of oxygen utilization, reduce drag losses.
(3) in micro-hole aerator of the present invention, the material of aerator diaphragm is urethane, can reduce the thickness of rubber diaphragm in prior art, can stable against biological contamination, acid and alkali-resistance, oil resistant, and intensity is high, stretch capability is strong.Meanwhile, can effectively prevent microorganism enrichment, thus prevent sludge blockage solarization air cap, not only improve the work-ing life of aerator, also strengthen the stability of aerating system.
Accompanying drawing explanation
Fig. 1 is the structural representation of micro-hole aerator of the present invention.
Fig. 2 is the vertical view of micro-hole aerator of the present invention.
Fig. 3 is the schematic diagram of flow channel in rectification air distribution plate in micro-hole aerator of the present invention.
In figure, each mark is as follows:
1 aerator diaphragm, 2 rectification air distribution plates, 3 base for supporting, 4 solarization air caps, 5 flow channels, 6 ventpipes, 7 hickeys.
Embodiment
The experimental technique used in following embodiment if no special instructions, is ordinary method.
Material used in following embodiment, reagent etc., if no special instructions, all can obtain from commercial channels.
Below in conjunction with Figure of description, the present invention will be further described, but the present invention is not limited to following embodiment.
As shown in Figure 1, sewage disposal micro-hole aerator of the present invention comprises that the thickness of urethanes material is 0.5 ~ 1.0mm aerator diaphragm 1, thickness is 0.5 ~ 1.0mm rectification air distribution plate 2 and stainless steel base for supporting 3.Rectification air distribution plate 2 is micro-arch, protruding to aeration direction; Along aeration direction, the projection plane of rectification air distribution plate 2 is rectangle, and along its length, the central angle variation range corresponding to described rectification air distribution plate cambered surface is 10 ~ 30 degree, and the central angle of the camber line at the vertex place of described rectification air distribution plate can be 20 degree ~ 30 degree.Rectification air distribution plate 2 is fixed on base for supporting 3, and and forms an airtight chamber between base for supporting 3.The outer wall of rectification air distribution plate 2 attaches aerator diaphragm 1, the useful length of aerator diaphragm 1 is 1000mm, and effective width is 200mm.It is 100 ~ 300 μm of solarization air caps 4 that aerator diaphragm 1 is provided with many rows aperture arranged in parallel, the solarization air cap 4 of adjacent two rows is for being crisscross arranged, as shown in Figure 2, by obtaining rubber diaphragm of polyurethane mechanical punching according to default lathe computer program and round pin mould.The central position of rectification air distribution plate 2 internal surface is provided with a groove, is provided with many flow channels 5 in the inside of rectification air distribution plate 2, and centered by groove radially, as shown in Figure 3, the two ends of flow channel 5 are communicated with groove respectively at solarization air cap flow channel 5.The bottom of base for supporting 3 is provided with an inlet mouth.Inlet mouth place connects a ventpipe 6, realizes aeration by following two kinds of modes:
1) one end of ventpipe 6 is communicated with groove, and foreign gas is directly discharged along flow channel 5 from solarization air cap 4 from ventpipe 6;
2) the other end of ventpipe is free end, foreign gas is diffused in airtight chamber from ventpipe 6, and further, the gas in groove is discharged along flow channel 5 from solarization air cap 4, this principle is identical with principle when not arranging ventpipe 6, and the setting of ventpipe 6 can conveniently be connected with air line.
Base for supporting 3 periphery is provided with draw-in groove and hickey 7, and aerator diaphragm 1 and rectification air distribution plate 2 are fixed in draw-in groove, and aerator diaphragm 1 and rectification air distribution plate 2 are also provided with sealing-ring with the junction of draw-in groove.Inlet mouth place is provided with a hickey 7, and hickey 7 is connected with ventpipe 6 and an air line respectively.
Sewage disposal micro-hole aerator of the present invention and conventional sewage process rubber film micro hole aerator is utilized to carry out oxygenation capacity test (testing method reference standard: " aerator clear water oxygenation capacity mensuration " (CJ/T3015.2-93)) respectively, wherein the shape of conventional sewage process rubber film micro hole aerator is tubular type or disc type, material is terpolymer EP rubber (EPDM), thickness is 1.8 ~ 3.8mm, foreign gas directly forms bubble through aerating pore through air cavity and realizes aeration, and test result as shown in Table 1 and Table 2.
A kind of sewage disposal of table 1 the present invention oxygenation capacity test result of new and effective micro-hole aerator
The oxygenation capacity test result of table 2 conventional sewage process rubber film micro hole aerator
The data of contrast table 1 and table 2 are known, and under micropore aerator aeration film stationary state of the present invention, aperture is less, and the bubble diameter of generation reduces, and then gas liquid interfacial area improves, and coefficient of oxygen utilization improves greatly; Micro-hole aerator of the present invention is micro-domes, and aeration film fully contacts with liquid phase, and avoid mud in the alluvial of aerator surface, under unit consumption of energy, dynamic efficiency significantly improves, and reduces the operation energy consumption in aeration process.
Claims (6)
1. a sewage disposal micro-hole aerator, is characterized in that: it comprises aerator diaphragm, rectification air distribution plate and base for supporting;
Described rectification air distribution plate is fixed on described base for supporting, and and form an airtight chamber between described base for supporting;
The outer wall of described rectification air distribution plate attaches described aerator diaphragm, and described aerator diaphragm is provided with some row's solarization air caps, and is arranged in parallel; For being crisscross arranged between the described solarization air cap of adjacent two row; The aperture of described solarization air cap is 100 ~ 300 μm;
The material of described aerator diaphragm is urethane; The thickness of described aerator diaphragm is 0.5 ~ 1.0mm;
Described rectification air distribution plate is provided with some flow channels, and the two ends of described flow channel are connected with described solarization air cap with described airtight chamber respectively;
Described rectification air distribution plate is micro-arch, protruding to aeration direction; Along aeration direction, the projection plane of described rectification air distribution plate is rectangle; Along its length, the camber line that described rectification air distribution plate is 10 ~ 30 degree by several central angles forms;
The bottom of described base for supporting is provided with an inlet mouth.
2. micro-hole aerator according to claim 1, is characterized in that: the inwall of described rectification air distribution plate is provided with a groove, and described groove is connected with the Single port of described flow channel.
3. micro-hole aerator according to claim 2, is characterized in that: described flow channel distributes radially centered by described groove.
4. the micro-hole aerator according to Claims 2 or 3, is characterized in that: described inlet mouth place connects a ventpipe.
5. micro-hole aerator according to claim 4, is characterized in that: described base for supporting periphery is provided with draw-in groove and hickey, and described aerator diaphragm and described rectification air distribution plate are fixed in described draw-in groove;
Described inlet mouth place is provided with a hickey, and described hickey is connected with described ventpipe.
6. the micro-hole aerator according to any one of claim 1-3, is characterized in that: the effective aspect ratio of described rectification air distribution plate and described aerator diaphragm is 5:1 ~ 10:1.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410577564.1A CN104326580B (en) | 2014-10-24 | 2014-10-24 | A kind of sewage disposal micro-hole aerator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410577564.1A CN104326580B (en) | 2014-10-24 | 2014-10-24 | A kind of sewage disposal micro-hole aerator |
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| CN104326580A CN104326580A (en) | 2015-02-04 |
| CN104326580B true CN104326580B (en) | 2016-04-06 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104686443A (en) * | 2015-03-26 | 2015-06-10 | 贺永彪 | Microporous aeration type aerator |
| CN104944605B (en) * | 2015-06-16 | 2016-08-31 | 江苏溢洋水工业有限公司 | A kind of highly efficient durable self sealss micro-hole aerator |
| CN105984970A (en) * | 2016-05-05 | 2016-10-05 | 上海冕丰工程技术有限公司 | Plate-type microporous aerator and aerating system |
| CN107311322B (en) * | 2017-08-18 | 2020-02-07 | 河北新天地环保工程有限公司 | Disc type aerator |
| CN107353044A (en) * | 2017-09-07 | 2017-11-17 | 广州市净水有限公司 | A kind of sludge composting fermentation integral processing device |
| CN108298674A (en) * | 2017-12-23 | 2018-07-20 | 南京伊博特环保科技有限公司 | A kind of Novel sewage processing aeration membrane |
| CN111947723B (en) * | 2019-05-17 | 2023-05-09 | 森德(中国)暖通设备有限公司 | Measuring tuyere |
| CN111039428B (en) * | 2019-12-20 | 2022-06-07 | 江苏优联环境发展有限公司 | Ozone aeration cavity manufacturing method |
| CN111410347B (en) * | 2020-03-29 | 2021-11-05 | 肇庆中彩机电技术研发有限公司 | Anti-clogging sewage treatment device convenient for purifying domestic wastewater |
| CN114805721A (en) * | 2022-04-19 | 2022-07-29 | 北京博汇特环保科技股份有限公司 | Self-closing aeration hose and preparation method thereof |
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| JP2014079729A (en) * | 2012-10-18 | 2014-05-08 | Kobelco Eco-Solutions Co Ltd | Elastic membrane for gas diffusion and gas diffused body provided with the same |
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| CN201071321Y (en) * | 2007-07-11 | 2008-06-11 | 江苏神州环境工程有限公司 | Rubber diaphragm microhole aerator |
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