CN105502643A - Microporous aerator and manufacturing method thereof - Google Patents
Microporous aerator and manufacturing method thereof Download PDFInfo
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- CN105502643A CN105502643A CN201510970437.2A CN201510970437A CN105502643A CN 105502643 A CN105502643 A CN 105502643A CN 201510970437 A CN201510970437 A CN 201510970437A CN 105502643 A CN105502643 A CN 105502643A
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- 238000005276 aerator Methods 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000002184 metal Substances 0.000 claims abstract description 35
- 238000009826 distribution Methods 0.000 claims abstract description 34
- 239000002344 surface layer Substances 0.000 claims abstract description 22
- 230000007797 corrosion Effects 0.000 claims abstract description 8
- 238000005260 corrosion Methods 0.000 claims abstract description 8
- 239000010410 layer Substances 0.000 claims abstract description 7
- 239000003575 carbonaceous material Substances 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 34
- 238000000034 method Methods 0.000 claims description 34
- 241001233242 Lontra Species 0.000 claims description 28
- 230000008569 process Effects 0.000 claims description 14
- 229910052799 carbon Inorganic materials 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 5
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 238000011049 filling Methods 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 20
- 239000001301 oxygen Substances 0.000 abstract description 20
- 229910052760 oxygen Inorganic materials 0.000 abstract description 20
- 238000004140 cleaning Methods 0.000 abstract description 11
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000005273 aeration Methods 0.000 description 18
- 239000000463 material Substances 0.000 description 13
- 239000010865 sewage Substances 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 9
- 244000005700 microbiome Species 0.000 description 9
- 239000000047 product Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000012546 transfer Methods 0.000 description 8
- 229920001971 elastomer Polymers 0.000 description 6
- 239000011148 porous material Substances 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000006213 oxygenation reaction Methods 0.000 description 4
- 239000010802 sludge Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000004060 metabolic process Effects 0.000 description 3
- 230000000845 anti-microbial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000000241 respiratory effect Effects 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- 241000272517 Anseriformes Species 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 230000001195 anabolic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000693 micelle Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000010841 municipal wastewater Substances 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 235000008935 nutritious Nutrition 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- -1 slightly expands Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 208000011580 syndromic disease Diseases 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 239000011345 viscous material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1278—Provisions for mixing or aeration of the mixed liquor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (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 relates to a microporous aerator and a manufacturing method thereof. The microporous aerator has the advantages that water seepage is not likely to occur, the oxygen utilization rate is high and resistance is low, off-line cleaning can be achieved, and manufacturing cost is low. The invention further provides the manufacturing method of the microporous aerator. The microporous aerator comprises an air distribution pipe, a plurality of air releasers and a plurality of connection hoses. The air distribution pipe is arranged above the water surface. Each air releaser is arranged under the water surface in a drooping mode and comprises an air releaser base layer and an air releaser surface layer, wherein the air releaser base layer is a hollow cylinder made of a carbon material, the air releaser surface layer is arranged on the outer surface of the air releaser base layer and formed by compositing corrosion-resistant metal net plates, and the thickness of the air releaser surface layer is 50-80 micrometers. One end of each connection hose is connected to the air distribution pipe and communicated with the air distribution pipe, and the other end of each connection hose is connected to the corresponding air releaser and communicated with the interior of the corresponding air releaser. Macropores with the diameter of 5-6 mm are formed in the cylinder walls of the air releaser base layers, and micropores with the diameter of 30-50 micrometers are formed in the air releaser surface layers.
Description
Technical field
The present invention relates to aerobic activated sludge process technical field of sewage, relate to a kind of micro-hole aerator and manufacture method thereof specifically.
Background technology
Aerobic activated sludge process is disposed of sewage existing more than 100 years history, is still the irreplaceable prevailing technology of sewage disposal so far, according to statistics, domestic built and adopt activated sludge process in the municipal wastewater process 80% of building; There is the Industrial Wastewater Treatment of 50% also to adopt or partly adopt this technique.Aerobic activated sludge process sewage treatment is based in natural water, there is a kind of microorganism (bacterium) at aerobic conditions, can using the carbon in Organic substance in water as the energy of respiratory metabolism and anabolic nutrition source, microorganism, first by organic substance decomposing, then absorbs part organic carbon and carries out respiratory metabolism.The energy produced, for Microbe synthesis metabolism, absorbs another organic carbon simultaneously, synthesizes new cell.The vital movement of microorganism, organism is converted into CO the most at last
2be cleaned with water, microorganism self is bred; Dissolved oxygen in water consumes as electron acceptor(EA) in biochemical reaction.The self-cleaning principle of this water body, through improvement, the raising of more than 100 years, forms Modern sewage treatment plant.
Modern sewage work, by the vital movement of microorganism, completes in specific environment-reaction tank.After waste water flows into reaction tank, simultaneously continuous to reaction tank oxygenation, the oxygen source of oxygenation is air, and the mode of oxygenation blasts air to reaction tank, i.e. aeration.Microorganism in reaction tank, breeds rapidly in nutritious source and energy condition, reaches certain degree to quantity, the viscous material of antimicrobial surface, make it assemble the flco of pureed, this flco has unique function in sewage disposal, so the aerodynamic energy of reaction tank must be entered by aeration, reaction solution is constantly evenly mixed, when the cotton-shaped scale of construction of microorganism has unnecessary, by precipitation, water is separated, isolated water with mud, pollutent is removed, shift out dirty treatment system, enter water body; And unnecessary mud is by mechanical dehydration, reduces volume, finally process.Therefore aeration is in sewage treatment process, is a very important key operating units.
Shi Ge high energy consumption enterprise of sewage work, day process 20000m
3the factory of sewage scale, power consumption every day about 16000 ~ 18000 degree, wherein 90% is technique electricity consumption, and aeration accounts for 60% in technique electricity consumption.So this operating unit of aeration, be the essential elements of technique and the operating unit of highly energy-consuming.Reducing the energy consumption of sewage work, take aeration as point of penetration, is optimal selection.
Blast air to reaction tank, air is the numerous bubble of quantity of formation in corresponsively, by the O in air filled cavity
2be transferred in water, this is a mass transfer process.Mass transfer is a concentration diffusion process, and the degree of passing of concentration difference is the impellent of diffusion.And gas ducks in drink, fluid surface and bubble all have a skim, are referred to as interfacial film.It is the centrostigma hindering oxygen diffusion
(1) transmittance process of oxygen, usually explain by two-film theory, its expression formula is:
KL: liquid film transfer ratio;
A: gas liquid interfacial area;
V: liquid volume;
C
s: the aerial concentration of oxygen;
C: oxygen is concentration in water.
In above formula, KL value is determined by fluid level gauge surface tension, can think definite value; (C
s-C) be the promotion of spreading, the oxygen that interface two is surveyed is dense stable, also can think definite value.
Above formula is pointed out, and only has and expands liquid-gas interface area A, could increase the transfer amount of oxygen, wear in sky aeration, by changing the size in the outgas hole of scatterer, can realize the air blasted in water and forming micro-bubble, expanding the numerical value of A.
A diameter is the bubble of 10mm, and gas-oil interfaces is 314mm
2; Bubble diameter is the gas-oil interfaces of 1mm is 3.14mm
2..A diameter is 10mm bubble, 1000 diameters can be divided into be the small bubbles of 1mm, its surface-area total amount, is the interfacial area large ten times of 10mm bubble than a diameter.Bubble diameter and oxygen transfer amount relation as follows:
Bubble diameter is little, not only can expand interfacial area A, can improve oxygen transfer amount, and bubble diameter is little, and lift velocity is also little, then the two-phase mass transfer time can move length, and this also contributes to the transfer amount of oxygen, as follows:
Theoretical analysis, passing for improving aeration operation oxygen the amount of moving, proposing concrete grammar.This of the oxygen amount blasted to water body and the oxygen be dissolved in the water claims the utilization ratio of oxygen.Obviously, the aeration method that coefficient of oxygen utilization is high, the air quantity of aeration method that must be lower than coefficient of oxygen utilization is few.So there is good energy-saving effect.Based on above-mentioned: environmental protection equipment industrial community, very active to the exploitation of micro-pore aeration.
China is in the eighties, and existing micro-pore aeration scatterer product appears at market, and the tubular Yi Tu of this product moulds fabric and opens and form with finedraw, withdraws from the market because work-ing life is short.Product in the market, mainly with the scatterer of the raw material such as rubber and terpolymer EP rubber, structure formation has tubular and dish type two kinds.
The micro-pore aeration scatterer of these two kinds of structures, although structure is different, (1) outgas plate (pipe) material is identical, is all have employed polymer material; (2) principle of generation microbubble is identical is all the finedraw opened made in pressure effect on material, slightly expands, and air shooting in the finedraw of diffusion forms micro-bubble; (3) all fixedly mount under pond.
Macromolecular material kind is a lot, and performance differs.Have data to show, only 0.5 ~ 2 year domestic general diaphragm usage period, some import diaphragm economiclifes also only have 2-3, the import of the silicon rubber of high-quality France can use 5-8, but price is very expensive.
Diaphragm made by high score material, and maximum feature is that macromolecular material has certain elasticity, and when shutting down, the finedraw opened can restore to the original state by elasticity---and closed state, does not have water and infiltrates pipeline.Objective effect, opinions vary.But have a bit, be provided with water shoot in design, must consider that it is possible for there is infiltration.Causing infiltration to enter gas distribution pipe to existing product analysis basis, market is thought, very important reason is that rubber works for a long time under 80 DEG C of air themperature, and material produces fatigue deformation, and pore produces tearing and becoming large slowly; Easily stifled, resistance increases; In addition surface material surface be full of cracks under acid-base function; Accelerate pass and become large.This is material syndromes.
Reliever is fixed on basin bottom, and that negative effect is fairly obvious.Because the antimicrobial surface exposed to the sun in pond has sticky shape carbohydrate substance microbes in polymer surface attachment breeding, even agglomerating, film has become the carrier of microorganism growth, and this can make resistance increase undoubtedly, therefore needs to clean with formic acid.According to use experience, every two weeks needs cleaning once.After cleaning, oxygenation capacity could recover to some extent.
Microorganism causes film surface contamination, can cause the event that burst occurs time serious.When after film surface contamination, the air output of film reduces gradually, and the mixing effect of such aeration also obviously weakens; make mud be pressed on above aeration membrane, mud is more long-pending, deflates just fewer and feweri; and mud reduces with air capacity and adds layer deposition, finally have to shut down process.
The state analysis that present market product runs, generally believes, brings into use effect good, but decline is very fast, and can this enlightens us, have a kind of aerating apparatus energy repeated regeneration or change a small amount of part, the product innovation that can repair sth. old and make it as good as new, and replace expensive inward with cheap price.
Summary of the invention
The object of this invention is to provide a kind of micro-hole aerator, overcome the deficiencies in the prior art part, have not easily seep water, the feature of the high and low resistance of coefficient of oxygen utilization, and can off-line cleaning, manufacturing cost is also relatively low.
Another object of the present invention is to provide a kind of manufacture method of above-mentioned micro-hole aerator.
The object of the present invention is achieved like this:
A kind of micro-hole aerator, comprising:
Gas distribution pipe, described gas distribution pipe is arranged on above the water surface;
Some outgas devices, under be located in underwater, comprise outgas device basic unit and outgas device surface layer, described outgas device basic unit is the hollow cylinder be made up of carbon materials, described outgas device surface layer is located at the outside surface of described outgas device basic unit, be composited by corrosion resistant metal web plate, the thickness of described outgas device surface layer is 50 ~ 80 μm;
Some connecting hoses, every root connecting hose one end is connected to described gas distribution pipe and is communicated with described gas distribution pipe, and the other end is connected to described outgas device and is communicated with described outgas device inside;
Wherein, the barrel of described outgas device basic unit is provided with the macropore that diameter is 5 ~ 6mm, and described outgas device surface layer is provided with the aperture that diameter is 30 ~ 50 μm.
Further, described gas distribution pipe is provided with arm, and one end of described every root connecting hose is connected to the arm of described gas distribution pipe, is communicated with described gas distribution pipe by described arm.
Wherein, the other end of described connecting hose is connected to the upper top of described outgas device basic unit.Particularly, the upper top of described outgas device basic unit is provided with interface, and the other end of described connecting hose is connected to described interface, and described gas distribution pipe is communicated with described outgas device inside.
Further, described outgas device surface layer and outgas device link base layer overprotection hoop are fixed.
The present invention additionally provides the manufacture method of above-mentioned micropore simultaneously, and the method comprises the following steps:
(1) adopt carbon element base, become hollow cylinder by turnery processing, and carry out holing, polishing on the barrel of obtained hollow cylinder;
(2) corrosion resistant metal web plate is spliced into a metal otter board cylinder by argon arc welding, the perimeter of section of described metal otter board cylinder is slightly less than the perimeter of section of hollow cylinder described in step (1);
(3) the metal otter board cylinder obtained by step (2) is composite and fixed on the outer wall of described hollow cylinder by hot cover process: metal otter board cylinder is heated to 150 ~ 160 DEG C, be enclosed within described hollow cylinder outer wall, quenching is shunk and is made described metal otter board cylinder be compounded on the outer wall of described hollow cylinder, obtained outgas device;
(4) the obtained multiple outgas device in repeating step (1)-(3);
(5) obtained outgas device is connected to gas distribution pipe by connecting hose.
Wherein, in described step (1), the barrel of obtained hollow cylinder is holed, and the diameter in the hole of boring is 5 ~ 6mm; In described step (2), the thickness of described metal otter board is 50 ~ 80 μm, and the aperture of described metal otter board is 30 ~ 50 μm.
Further, carry out water filling test after described step (3) to obtained outgas device, guarantee that water can only be flowed out by the hole on the hole on the barrel of described hollow cylinder and described metal otter board cylinder successively, then outgas device is salable product.
Preferably, in described step (3), described metal otter board cylinder is composite and fixed on the outer wall of described hollow cylinder, and fixing by protection hoop.
Micro-hole aerator of the present invention is composited by the outgas device basic unit adopting the good carbon element base of rotproofness to obtain and the outgas device surface layer that obtained by 50 ~ 80 μm of thick corrosion resistant metal otter boards, wherein outgas device basic unit has the macropore of 5 ~ 6mm, in order to control the flux of air; The aperture of 30 ~ 50 μm of outgas device surface layer will be divided into the microbubble of about 1mm from macropore air pocket out.
Due to the employing of outgas device surface layer is thin material, and the pipe type rubber resistance of resistance ratios prior art wants little 100 ~ 120KAP.When shutting down, the pore of surfacing can stop the micelle in pond can not enter in blast main.As for the colloidal solid (zeta current potential about-100 ~ 120mv) of the stable state of < 50 μm, can open water escape valve after entering scatterer, water can flow out, when Vent water pipe has air out from Vent water pipe automatically, closedown water escape valve, not only convenient but also safe.
And by gas distribution pipe is arranged on above the water surface, only outgas device is arranged in water by connecting hose, outgas device can be left the water very easily and be carried out overhauling and cleaning, and be suspended on gas distribution pipe due to outgas device, insert formula standard interface with pressurized air to connect, it is very convenient that off-line washes down dismounting; Off-line cleaning performance is good more than on-line cleaning, and after off-line cleaning, aerator becomes clean and can recover to continue to use; Gas distribution pipe is on the water surface, can not form liquid resistance, uses resistance will be far smaller than hard-wired resistance.Under identical supply gas pressure, the flow velocity in aperture is just large like this, and the kinetic energy had is also large.Such mixing effect is good, and mud can not precipitate the end, ground.
In addition, if need when overhauling or clean to change outgas device surface layer, as long as outgas device is heated to 150 DEG C ~ 160 DEG C, outgas device surface layer can fall automatically, very convenient.
Micro-hole aerator provided by the present invention, owing to have employed technique scheme, compared with prior art has following beneficial effect:
(1) energy-saving effect can save 5% power consumption compared with quality of rubber materials, and coefficient of oxygen utilization will be enhanced about more than once compared with boring aeration.Even if field working conditions has uncertain situation, power consumption may be affected, but on-the-spot reality and theory want numerical value to differ general about 30%;
(2) the materials'use life-span is long, and thin-walled plane materiel very easily cleans, and after cleaning, function can not decay, and uses and can use by iterative cycles;
(3) configuration air filter and Fieldable chemical cleaning device is not needed;
(4) compared with rubber diaphragm, overhaul need not more conversion materials, so once can save overhaul material about 200 ~ 4,000,000/50,000 m
3/ d scale;
(5) comparatively imported product is low by more than 50% for price.
Accompanying drawing explanation
By following embodiments of the invention and description taken together with the accompanying drawings, other advantage of the present invention and feature are shown, this embodiment provides by way of example, but is not limited to this, wherein:
Fig. 1 is the structural representation of a preferred embodiment of micro-hole aerator of the present invention.
Figure 2 shows that the structural representation of the outgas device of embodiment in Fig. 1.
Embodiment
As depicted in figs. 1 and 2, micro-hole aerator comprises: gas distribution pipe 1, and gas distribution pipe 1 connects aeration house steward 2, and gas distribution pipe 1 is arranged on above the water surface of aeration tank 5.The arm of gas distribution pipe 1 is connected with some connecting hoses 3, every root connecting hose 3 one end is connected to the arm of gas distribution pipe 1 and is communicated with gas distribution pipe 1, and the other end connects an outgas device 4 and is communicated with outgas device 4 inside.
Outgas device is located in underwater 4 times, and shown in composition graphs 2, outgas device 4 comprises outgas device basic unit 41 and outgas device surface layer 42.Outgas device basic unit 41 is the hollow cylinder be made up of carbon materials, and barrel is provided with the macropore that diameter is 5 ~ 6mm, and upper top is provided with interface, and the other end of connecting hose 3 is connected to this interface, and gas distribution pipe 1 is communicated with the inside of outgas device 4.Outgas device surface layer 42 is located at the outside surface of outgas device basic unit 41, and is fixed by protection hoop 43.Outgas device surface layer 42 is composited by corrosion resistant metal web plate, and thickness can be 50 ~ 80 μm, is 50 μm in the present embodiment, and the aperture of metal otter board is 50 μm.
The present invention additionally provides the manufacture method of above-mentioned micropore simultaneously, and the method comprises the following steps:
(1) adopt the carbon element base of buying, become hollow cylinder by turnery processing, and carry out holing, polishing on the barrel of obtained hollow cylinder, the diameter in the hole of boring is 5 ~ 6mm.
(2) corrosion resistant metal web plate is spliced into a metal otter board cylinder by argon arc welding, the perimeter of section of described metal otter board cylinder is slightly less than the perimeter of section of hollow cylinder described in step (1).Wherein the thickness of metal otter board is 50 μm, and the aperture of metal otter board is 50 μm.
(3) the metal otter board cylinder obtained by step (2) is composite and fixed on the outer wall of described hollow cylinder by hot cover process: metal otter board cylinder is heated to 150 ~ 160 DEG C; be enclosed within described hollow cylinder outer wall; quenching is shunk and is made described metal otter board cylinder be compounded on the outer wall of described hollow cylinder; and fixing by protection hoop, obtained outgas device.Carry out water filling test to obtained outgas device, guarantee that water can only be flowed out by the hole on the hole on the barrel of described hollow cylinder and described metal otter board cylinder successively, then outgas device is salable product.
(4) the obtained multiple outgas device in repeating step (1)-(3);
(5) obtained outgas device is connected to gas distribution pipe by connecting hose.
Although the present invention is illustrated hereinbefore according to preferred embodiment, but this does not represent that scope of the present invention is confined to above-mentioned structure, as long as the equivalent substitution structure that those skilled in the art can develop easily after reading above-mentioned explanation, the equalization done under the spirit not departing from the present invention and scope changes and modifies, and all should be covered by within the scope of the claims of the present invention.
Claims (10)
1. a micro-hole aerator, is characterized in that, comprising:
Gas distribution pipe, described gas distribution pipe is arranged on above the water surface;
Some outgas devices, under be located in underwater, comprise outgas device basic unit and outgas device surface layer, described outgas device basic unit is the hollow cylinder be made up of carbon materials, described outgas device surface layer is located at the outside surface of described outgas device basic unit, be composited by corrosion resistant metal web plate, the thickness of described outgas device surface layer is 50 ~ 80 μm;
Some connecting hoses, every root connecting hose one end is connected to described gas distribution pipe and is communicated with described gas distribution pipe, and the other end is connected to described outgas device and is communicated with described outgas device inside;
Wherein, the barrel of described outgas device basic unit is provided with the macropore that diameter is 5 ~ 6mm, and described outgas device surface layer is provided with the aperture that diameter is 30 ~ 50 μm.
2. micro-hole aerator as claimed in claim 1, it is characterized in that: described gas distribution pipe is provided with arm, one end of described every root connecting hose is connected to the arm of described gas distribution pipe, is communicated with described gas distribution pipe by described arm.
3. micro-hole aerator as claimed in claim 1 or 2, is characterized in that: the other end of described connecting hose is connected to the upper top of described outgas device basic unit.
4. micro-hole aerator as claimed in claim 3, is characterized in that: the upper top of described outgas device basic unit is provided with interface, and the other end of described connecting hose is connected to described interface, and described gas distribution pipe is communicated with described outgas device inside.
5. micro-hole aerator as claimed in claim 1, is characterized in that: described outgas device surface layer and outgas device link base layer overprotection hoop are fixed.
6. a manufacture method for micro-hole aerator, is characterized in that, the method comprises the following steps:
(1) adopt carbon element base, become hollow cylinder by turnery processing, and carry out holing, polishing on the barrel of obtained hollow cylinder;
(2) corrosion resistant metal web plate is spliced into a metal otter board cylinder by argon arc welding, the perimeter of section of described metal otter board cylinder is slightly less than the perimeter of section of hollow cylinder described in step (1);
(3) the metal otter board cylinder obtained by step (2) is composite and fixed on the outer wall of described hollow cylinder by hot cover process: metal otter board cylinder is heated to 150 ~ 160 DEG C, be enclosed within described hollow cylinder outer wall, quenching is shunk and is made described metal otter board cylinder be compounded on the outer wall of described hollow cylinder, obtained outgas device;
(4) the obtained multiple outgas device in repeating step (1)-(3);
(5) obtained outgas device is connected to gas distribution pipe by connecting hose.
7. manufacture method as claimed in claim 6, is characterized in that: in described step (1), and the barrel of obtained hollow cylinder is holed, and the diameter in the hole of boring is 5 ~ 6mm.
8. manufacture method as claimed in claim 6, it is characterized in that: in described step (2), the thickness of described metal otter board is 50 ~ 80 μm, and the aperture of described metal otter board is 30 ~ 50 μm.
9. manufacture method as claimed in claim 6, it is characterized in that: after described step (3), water filling test is carried out to obtained outgas device, guarantee that water can only be flowed out by the hole on the hole on the barrel of described hollow cylinder and described metal otter board cylinder successively, then outgas device is salable product.
10. manufacture method as claimed in claim 6, is characterized in that: be composite and fixed on the outer wall of described hollow cylinder by described metal otter board cylinder in described step (3), and fixing by protection hoop.
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| CN201510970437.2A CN105502643B (en) | 2015-12-21 | 2015-12-21 | A kind of micro-hole aerator and its manufacture method |
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| CN201510970437.2A CN105502643B (en) | 2015-12-21 | 2015-12-21 | A kind of micro-hole aerator and its manufacture method |
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| CN105502643B CN105502643B (en) | 2018-01-05 |
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| CN108033554A (en) * | 2017-10-11 | 2018-05-15 | 南京元凯生物能源环保工程有限公司 | A kind of Efficient micropore aeration device |
| 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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| CN105502643B (en) | 2018-01-05 |
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