CN203938518U - Nanometer aeration device - Google Patents
Nanometer aeration device Download PDFInfo
- Publication number
- CN203938518U CN203938518U CN201420344326.1U CN201420344326U CN203938518U CN 203938518 U CN203938518 U CN 203938518U CN 201420344326 U CN201420344326 U CN 201420344326U CN 203938518 U CN203938518 U CN 203938518U
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- CN
- China
- Prior art keywords
- nanometer aeration
- pedestal
- surge chamber
- inlet pipe
- ratio
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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 utility model discloses a kind of nanometer aeration device.Device bottom is air inlet area, is made up of inlet pipe and surge chamber.Inlet pipe connects air feeder, and surge chamber is for buffer memory gas.Device top is gas cutting area, is made up of pedestal, top cover, O-ring seal, trip bolt and nanometer aeration film.The nanometer aeration film inside orientational alignment carbon nano-tube of evenly arranging, and run through diaphragm both sides.O-ring seal and nanometer aeration film connect as one, and edge is fixed in the draw-in groove between pedestal and top cover, and draw-in groove is sealed under the effect of trip bolt.The utility model can be cut into gas the bubble of diameter 1 ~ 10nm, increases itself and the contacting of liquid phase, and strengthening mass transfer in liquid phase speed, improves aeration effective rate of utilization, cuts down actual aeration rate, saves facility investment and operation cost.Meanwhile, also can reduce the strong souring of air-flow to active sludge, reduce the possibility that its machinery runs off, increase the stability of biological treatment system, improve its operation usefulness.
Description
Technical field
The utility model relates to a kind of aerating apparatus, relates in particular to a kind of nanometer aeration device.
Background technology
The oxygen utilization rate of microporous aeration disc can reach 15% ~ 25%, and dynamic efficiency can reach 2 kgO
2/ kw.h is the aerating apparatus being most widely used in aerobe treatment system.But the bubble diameter that microporous aeration disc discharges still can reach 1.5 ~ 3.0 mm, and O
2mean diameter be about 0.346 nm, accordingly estimate, in a bubble, can comprise 8.1 × 10
19~ 6.51 × 10
20individual O
2molecule.In the process contacting with water, only has the O of bubble surface
2molecule is just had an opportunity and water molecules collision, with it in conjunction with and change dissolved oxygen into.And a large amount of O of bubble inside
2molecule can not contact with water, wastes and overflow liquid phase with upstream.If it is 10 nm left and right that bubble is cut into diameter, the O comprising in a bubble
2molecule only has 2.4 × 10
4individual, will greatly improve O
2the contact probability of molecule and water, improves its rate of mass transfer.
Carbon nanotube has high tensile strength, Young's modulus and elongation at break, is one of mechanical property best material of finding up to now.In recent years, its preparation and processing technology have also obtained tremendous development, for its widespread use in each field is laid a good foundation.On the one hand, a longitudinal growth difficult problem for carbon nanotube is broken through gradually, and it is even higher that the yardstick of the carbon nanotube of preparing is promoted to centimetre-sized by micron order.It is reported, the external existing technology of preparing the several nanometers of caliber, growing the single-walled nanotube of several centimetres, and quite ripe.Domestic in the recent period also report, can synthesize the overlength carbon nano pipe that joint length reaches half meter.
On the other hand, be less than the double-walled carbon nano-tube array of 2 nm taking internal diameter as basis, fill silicon nitride by catalystic pyrolysis, can prepare carbon nanotube nanofiltration membrane.Test result demonstration, the transmission speed of gas molecule in this nanofiltration membrane improves nearly 1 order of magnitude than the gloomy diffusion model predictor of traditional slave; The transmission speed of water molecules in this nanofiltration membrane improves approximately 3 orders of magnitude than continuous fluid mechanical model predictor.Compared with polycarbonate leaching film, this filter membrane aperture size is much smaller, but gas liquid penetrating power has therein improved several orders of magnitude.
Application of micron, in the aeration process of aerobe treatment system, can significantly be reduced to the diameter that disengages bubble, increase O
2the contact probability of molecule and water, strengthening gas phase mass transfer in liquid phase speed, improves oxygen utilization rate, significantly cuts down actual aeration rate, saves facility investment and operation cost.In addition, if this invention is applied to anaerobic methane oxidation system, also can significantly cut down the feed rate of methane gas, save considerable methane gas acquisition cost.In addition, effectively reduce actual aeration rate, also can bring an extra benefit, can slow down the strong souring of air-flow to active sludge, reduce the possibility that its machinery runs off, improve the stability of biological treatment system, increase the handiness of operation, and then promote its operation usefulness.
Summary of the invention
The utility model object is to overcome the low defect of existing aerating apparatus gas effciency, and a kind of nanometer aeration device is provided.
Nanometer aeration device comprises air inlet area and gas cutting area, and air inlet area is positioned at gas cutting area bottom; Air inlet area comprises inlet pipe, surge chamber, and gas cutting area comprises pedestal, O-ring seal, top cover, trip bolt and nanometer aeration film.Inlet pipe is connected with the bottom of surge chamber, pedestal bottom is connected with surge chamber top, pedestal top is provided with top cover, top cover is connected with pedestal by trip bolt, the inner side, junction of top cover and pedestal is provided with draw-in groove, in draw-in groove, be provided with O-ring seal, O-ring seal inner side is provided with nanometer aeration film, and O-ring seal and nanometer aeration film connect as one.
The compressive strength of described inlet pipe, surge chamber, pedestal and top cover and the tolerance intensity of set screw all >=1.0Mpa; Surge chamber is hollow cone body, and cone angle is 90 ° ~ 120 °, and at the bottom of surge chamber, circular diameter is 10:1 ~ 15:1 with the ratio of inlet pipe internal diameter; Base thickness is 1.5:1 with the ratio of inlet pipe internal diameter, and top cover thickness is 1:2 with the ratio of base thickness, and base width is 2:1 ~ 3:1 with the ratio of inlet pipe internal diameter, and draw-in groove is 1:2 ~ 3:4 with the ratio of base width; Nanometer aeration film thickness is 5 ~ 15mm, and nanometer aeration film diameter is 1:1 with the ratio of circular diameter at the bottom of surge chamber; In nanometer aeration film, lay orientational alignment carbon nano-tube, it aligns direction perpendicular to diaphragm radially; The diameter of carbon nanotube is 1 ~ 10nm, the thickness that length is diaphragm; Carbon nanotube longitudinal pitch and diameter ratio are 15:1 ~ 25:1, and transverse pitch and diameter ratio are 15:1 ~ 25:1.
Compared with existing micro-hole aerator, the utlity model has obvious advantage: the oxygen bubbles diameter that 1) carbon nanotube cuts out is only 1 ~ 10nm, the O in single isolated bubbles
215 ~ 16 orders of magnitude of molecule number decline, O
2the probability that molecule contacts with water improves greatly, and gas phase mass transfer in liquid phase speed is accelerated, and oxygen utilization rate promotes 2 ~ 3 times, significantly cuts down actual aeration rate, saves air feed equipment investment and operation cost.2) if this invention is applied to anaerobic methane oxidation system, can significantly cut down the actual aeration rate of methane, save methane gas acquisition cost, reduce simultaneously and store the accident risk that a large amount of methane brings.3) cut down actual aeration rate, slow down the strong souring of air-flow to active sludge, reduce the possibility that its machinery runs off, improve the stability of biological treatment system, increase the handiness of its operation, and then promote its operation usefulness.
Brief description of the drawings
Fig. 1 is nanometer aeration apparatus structure vertical view;
Fig. 2 is nanometer aeration apparatus structure front view;
Fig. 3 is nanometer aeration device nanometer aeration film micro-structure diagram;
In figure: inlet pipe 1, surge chamber 2, pedestal 3, O-ring seal 4, top cover 5, trip bolt 6, nanometer aeration film 7.
Embodiment
As shown in Figure 1,2 and 3, a kind of nanometer aeration device comprises air inlet area I and gas cutting area II, and air inlet area I is positioned at gas cutting area II bottom; Air inlet area I comprises inlet pipe 1, surge chamber 2, and gas cutting area II comprises pedestal 3, O-ring seal 4, top cover 5, trip bolt 6 and nanometer aeration film 7.Inlet pipe 1 is connected with the bottom of surge chamber 2, pedestal 3 bottoms are connected with surge chamber 2 tops, pedestal 3 tops are provided with top cover 5, top cover 5 is connected with pedestal 3 by trip bolt 6, top cover 5 is provided with draw-in groove with the inner side, junction of pedestal 3, in draw-in groove, be provided with O-ring seal 4, O-ring seal 4 inner sides are provided with nanometer aeration film 7, and O-ring seal 4 connects as one with nanometer aeration film 7.
The described compressive strength of inlet pipe 1, surge chamber 2, pedestal 3 and top cover 5 and the tolerance intensity of set screw 6 all >=1.0Mpa; Surge chamber 2 is hollow cone body, and cone angle is 90 ° ~ 120 °, and 2 end of surge chamber circular diameter is 10:1 ~ 15:1 with the ratio of inlet pipe 1 internal diameter; Pedestal 3 thickness are 1.5:1 with the ratio of inlet pipe 1 internal diameter, and top cover 5 thickness are 1:2 with the ratio of pedestal 3 thickness, and pedestal 3 width are 2:1 ~ 3:1 with the ratio of inlet pipe 1 internal diameter, and draw-in groove is 1:2 ~ 3:4 with the ratio of pedestal 3 width; Nanometer aeration film 7 thickness are 5 ~ 15mm, and nanometer aeration film 7 diameters are 1:1 with the ratio of 2 end of surge chamber circular diameter; The interior laying orientational alignment carbon nano-tube of nanometer aeration film 7, it aligns direction perpendicular to diaphragm radially; The diameter of carbon nanotube is 1 ~ 10nm, the thickness that length is diaphragm; Carbon nanotube longitudinal pitch and diameter ratio are 15:1 ~ 25:1, and transverse pitch and diameter ratio are 15:1 ~ 25:1.
A kind of nanometer aeration device is except nanometer aeration film and O-ring seal, and all the other physical constructions all can be made of steel plate.The making processes of nanometer aeration film is as follows: first, adopt catalystic pyrolysis, growth of vertical carbon nano pipe array that arrange, that have certain length on monocrystalline silicon piece or quartz plate; Then, with airtight material filling carbon nano-pipe gap, and in the filling liquid of the reserved certain width of array edges, form and there is certain thickness continuous film; Finally, film is peeled off from substrate, to the perforate of carbon nanotube two ends, thus the nanometer aeration film of acquisition peripheral zone O-ring seal.
Its working process is as follows: gas (oxygen, air or methane) enters surge chamber 2 via inlet pipe 1, under the driving of nanometer aeration film 7 inside and outside differential pressures, enter the orientational alignment carbon nano-tube of arranging in nanometer aeration film 7, and be cut into the minimum bubble that diameter is 1 ~ 10nm, minimum bubble is released into liquid phase after arriving nanometer aeration film 7 outer surfaces, the gas molecule of bubble surface contacts with water molecules, is converted into solubilised state with water molecules; Do not occur effectively to contact with water molecules, or the gas molecule that can not contact with water molecules in bubble inside is with bubble rising, contacts and be converted into solubilised state with the water molecules on upper strata; Arrive liquid phase top, but the gas molecule that still can effectively not contact with water molecules, with bubble loss to environment.
In the utility model, the effectively key of work of gas cutting area II, is the processing of nanometer aeration film and the resistance to air loss of whole device.Must make carbon nano tube growth to desired length, align in film inside, and run through whole film.Airtight material must by between carbon nanotube space effective sealing.In addition, must ensure the stopping property of whole device, make gas diffuse to liquid phase by carbon nanotube cavity, and can not have other passage.
Claims (6)
1. a nanometer aeration device, is characterized in that: device comprises air inlet area (I) and gas cutting area (II), and air inlet area (I) is positioned at gas cutting area (II) bottom; Air inlet area (I) comprises inlet pipe (1), surge chamber (2), and gas cutting area (II) comprises pedestal (3), O-ring seal (4), top cover (5), trip bolt (6) and nanometer aeration film (7);
Inlet pipe (1) is connected with the bottom of surge chamber (2), pedestal (3) bottom is connected with surge chamber (2) top, pedestal (3) top is provided with top cover (5), top cover (5) is connected with pedestal (3) by trip bolt (6), top cover (5) is provided with draw-in groove with the inner side, junction of pedestal (3), in draw-in groove, be provided with O-ring seal (4), O-ring seal (4) inner side is provided with nanometer aeration film (7), and O-ring seal (4) connects as one with nanometer aeration film (7).
2. a kind of nanometer aeration device according to claim 1, is characterized in that: the described compressive strength of inlet pipe (1), surge chamber (2), pedestal (3) and top cover (5) and the tolerance intensity of set screw (6) all >=1.0MPa.
3. a kind of nanometer aeration device according to claim 1, is characterized in that: described surge chamber (2) is hollow cone body, and cone angle is 90 ° ~ 120 °, and the ratio of surge chamber (2) end circular diameter and inlet pipe (1) internal diameter is 10:1 ~ 15:1.
4. a kind of nanometer aeration device according to claim 1, it is characterized in that: the ratio of described pedestal (3) thickness and inlet pipe (1) internal diameter is 1.5:1, the ratio of top cover (5) thickness and pedestal (3) thickness is 1:2, the ratio of pedestal (3) width and inlet pipe (1) internal diameter is 2:1 ~ 3:1, and the ratio of draw-in groove and pedestal (3) width is 1:2 ~ 3:4.
5. a kind of nanometer aeration device according to claim 1, is characterized in that: described nanometer aeration film (7) thickness is 5 ~ 15mm, and the ratio of nanometer aeration film (7) diameter and surge chamber (2) end circular diameter is 1:1.
6. a kind of nanometer aeration device according to claim 1, is characterized in that: in described nanometer aeration film (7), lay orientational alignment carbon nano-tube, it aligns direction perpendicular to diaphragm radially; The diameter of carbon nanotube is 1 ~ 10nm, the thickness that length is diaphragm; Carbon nanotube longitudinal pitch and diameter ratio are 15:1 ~ 25:1, and transverse pitch and diameter ratio are 15:1 ~ 25:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420344326.1U CN203938518U (en) | 2014-06-26 | 2014-06-26 | Nanometer aeration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420344326.1U CN203938518U (en) | 2014-06-26 | 2014-06-26 | Nanometer aeration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203938518U true CN203938518U (en) | 2014-11-12 |
Family
ID=51857851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420344326.1U Withdrawn - After Issue CN203938518U (en) | 2014-06-26 | 2014-06-26 | Nanometer aeration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203938518U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104030434A (en) * | 2014-06-26 | 2014-09-10 | 浙江大学 | Nanometer aeration device and nanometer aeration method |
-
2014
- 2014-06-26 CN CN201420344326.1U patent/CN203938518U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104030434A (en) * | 2014-06-26 | 2014-09-10 | 浙江大学 | Nanometer aeration device and nanometer aeration method |
| CN104030434B (en) * | 2014-06-26 | 2016-03-02 | 浙江大学 | A kind of nanometer aeration devices and methods therefor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141112 Effective date of abandoning: 20160302 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |