CN101774681B - Micro-pore aeration system - Google Patents
Micro-pore aeration system Download PDFInfo
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- CN101774681B CN101774681B CN2010101016386A CN201010101638A CN101774681B CN 101774681 B CN101774681 B CN 101774681B CN 2010101016386 A CN2010101016386 A CN 2010101016386A CN 201010101638 A CN201010101638 A CN 201010101638A CN 101774681 B CN101774681 B CN 101774681B
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- 238000005273 aeration Methods 0.000 title claims abstract description 142
- 239000011148 porous material Substances 0.000 title claims abstract description 102
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 35
- 239000007901 soft capsule Substances 0.000 claims abstract description 17
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 79
- 238000006073 displacement reaction Methods 0.000 claims description 17
- 210000004907 gland Anatomy 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 230000003075 superhydrophobic effect Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000010865 sewage Substances 0.000 abstract description 16
- 238000007789 sealing Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 7
- 238000005276 aerator Methods 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 6
- 230000005484 gravity Effects 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 6
- 230000003245 working effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 208000034189 Sclerosis Diseases 0.000 description 2
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- 230000032683 aging Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 239000010431 corundum Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920010741 Ultra High Molecular Weight Polyethylene (UHMWPE) Polymers 0.000 description 1
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 230000029052 metamorphosis Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
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- 238000012545 processing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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- 230000009711 regulatory function Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- -1 θ=114 °) Polymers 0.000 description 1
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Classifications
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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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- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The invention discloses a micro-pore aeration system, which is used for the bottom aerobic aeration of the sewage biological treatment, and mainly consists of a micro-power aeration device, an air distribution pipe network, an air supply main pipe, a water-sealing safety device, a main valve, a blower, an air filter and an end drain device. The micro-pore aeration device mainly consists of a hydrophobic effect micro-pore aeration diaphragm, a soft capsule, an elevation-type check valve plate, a press cover and a base; the water-sealing safety device consists of a Y-shaped tee pipe, a U-shaped pipe, an adjusting pipe and a pressure stabilizing pipe; and the end drain device mainly consists of a drain tank, a drain pipe, a drain valve, a discharging pipe and an air release valve. Compared with the similar advanced technologies both at home and abroad, the micro-pore aeration system has the advantages that the service life is greatly prolonged, while the aeration efficiency is improved and the running power consumption is reduced, and the service life can reach more than 20 years, so the total cost of the sewage treatment is greatly reduced, and the vast economic benefit can be realized.
Description
Technical field
The present invention relates to a kind of sewage disposal technology, specifically is a kind of micro-pore aeration system that is used for the sewage biochemical treatment.
Background technology
Aeration in sewage treatment equipment mainly contains two types: pump (umbrella) type, commentaries on classics are brushed equipment such as (dish) surface aeration and micro-hole aerator (pipe), are revolved bottom aerators such as mixed aerator, air diffusion aerator.Micro-pore aeration equipment has higher dynamicefficiency, is more than 2 times of surface aeration equipment, can greatly reduce the operation power consumption of WWT, has obtained on the engineering using widely.
Micro-pore aeration equipment roughly is divided into two kinds of forms: in use there are following shortcoming in the micro-pore aeration equipment of corundum class constant aperture and the micro-pore aeration equipment of rubber-like variable aperture:
1. the former is prone to water inlet and causes that microorganism growth stops up, cleaning inconvenience in the micropore in aeration operation start and stop alternation procedure, and the continuous hypertonic in latter aperture in aeration process causes the rubber diaphragm easy fatigue to break, can not repair;
2. because the obstruction gradually of aerating pore or ageing of rubber sclerosis descend specified aeration rate, increase the atmospheric drag loss and then increase watt consumption;
3. when carrying out intermittent blast aeration operation scheme, sewage gets in the air pipe network easily, can not keep the cleaning in the air pipe network, when the gas blower run-down time is long, also needs the emptying aeration tank, and management not making;
Work-ing life short, generally about 5 years, with about 15 years work-ing life and the surface aeration apparatus in comparison of easy maintenance very big gap is arranged;
5. the workload of the micro-pore aeration equipment of replacing or cleaning breakage, obstruction is big, expense is high, and the cycle is long and influence surface is big.
The above-mentioned shortcoming of micro-pore aeration equipment; It is the major cause of the administrative and maintenance expense rising of WWT; Integrated operation economic benefit and surface aeration apparatus in comparison are not in superiority; These shortcomings are due to present equipment and materials performance and the technical deficiency, also are difficult to improve on the original basis and break through.
Summary of the invention
In order to overcome the deficiency of prior art, the present invention provides a kind of micro-pore aeration system that comprises air line, micro-pore aeration equipment and water seal security device.
In order to solve the problems of the technologies described above, technical scheme of the present invention is:
A kind of micro-pore aeration system, system comprises gas distributing network 2, air feed main 3-1,3-2, main valve 5, gas blower 6 and air filter 6-1, on gas distributing network 2, connects several micro-pore aeration equipment 1, micro-pore aeration equipment 1 places the bottom of aeration tank 17; Gas distributing network 2 is connected with air feed main 3-1 and terminal water-freeing arrangement respectively; On horizontal air feed main 3-2, insert the water seal security device; The water seal security device is made up of breeches pipe 4, U-shaped pipe 7, adjustable pipe 8 and voltage stabilizing tube 9; Promptly on horizontal air feed main 3-2, insert breeches pipe 4, the below mouth of pipe of breeches pipe 4 is connected with an end of U-shaped pipe 7, the lower end of another termination adjustable pipe 8 of U-shaped pipe 7; The lower end of voltage stabilizing tube 9 is connected with the upper end of adjustable pipe 8, its upper end mouth of pipe and atmosphere; The lower end absolute altitude of adjustable pipe 8
is positioned between the absolute altitude
of point of crossing absolute altitude
and horizontal air feed main 3-2 of breeches pipe 4; Upper end absolute altitude
is higher than absolute altitude
breeches pipe 4 of horizontal air feed main 3-2 and is made up of the pipeline section of large, medium and small different inner diameters; What wherein be connected with gas blower 6 does; What be connected with air feed main 3-1 is big, and what be connected with U-shaped pipe 7 is little; Gas blower 5 inlets are connected with air filter 6-1 outlet.
Above-mentioned micro-pore aeration equipment 1 is made up of hydrophobic effect micro-pore aeration diaphragm 1-1, soft capsule 1-2, lift check valve plate 1-9, base 1-3, gland 1-4 and fitting nut 1-5; By order base 1-3, soft capsule 1-2, hydrophobic effect micro-pore aeration diaphragm 1-1 engage in twos from top to bottom; Soft capsule 1-2 and base 1-3 are tight fastening with fitting nut 1-5, and hydrophobic effect micro-pore aeration diaphragm 1-1 and soft capsule 1-2 are tight fastening with gland 1-4 and base 1-3; Form between soft capsule 1-2 and the hydrophobic effect micro-pore aeration diaphragm 1-1 and regulate chamber 1-6, have the hole 1-7 that makes the two sides penetrating on the base 1-3; Lift check valve plate 1-9 places and regulates between interior inlet mouth 1-8 of chamber 1-6 and the hydrophobic effect micro-pore aeration diaphragm 1-1, is fixed with locating slide rod 1-10 on the lift check valve plate 1-9, and locating slide rod 1-10 inserts in the inlet mouth 1-8.
Above-mentioned terminal water-freeing arrangement is made up of displacement can 11 and water shoot 12, water discharge valve 13, vent pipe 14-1,14-2, water intaking valve 15 and blow-off valve 16, an end of water shoot 12 and 2 terminal connections of gas distributing network, and the other end inserts displacement can 11; Pick out vent pipe 14-1 downwards from displacement can 11 bottoms; Drop to absolute altitude
the back mouth of pipe and turn to connection vent pipe 14-2; The other end mouth of pipe of vent pipe 14-2 is located and atmosphere at absolute altitude
; Absolute altitude
displacement can 11 tops and bottom that absolute altitude
is higher than horizontal air feed main 3-2 are respectively equipped with water intaking valve 15 and blow-off valve 16, and water shoot 12 is provided with water discharge valve 13.
The hydrophobic effect micro-pore aeration diaphragm 1-1 of above-mentioned micro-pore aeration equipment 1 adopts the surface to have the made of good hydrophobic property or superhydrophobic characteristic, and the aerating pore aperture is in 250 μ m.
The internal space that forms between the hydrophobic effect micro-pore aeration diaphragm 1-1 of above-mentioned micro-pore aeration equipment 1 and the water seal security device comprises the volume adjusted of equilibrium air pressure and hydraulic pressure.
The breeches pipe 4 of above-mentioned water seal arrangement can also be other forms of Y-tube.
The characteristics of the present invention and prior art comparison are:
1. the micro-pore aeration membrane surface of micro-pore aeration system of the present invention possesses good hydrophobic property, even possesses superhydrophobic characteristic and self-cleaning net work ability, and sewage is difficult for getting in the micro-pore aeration equipment, avoids mikrobe blocking aeration micropore;
2. the micropore on the aeration membrane of micro-pore aeration system of the present invention is a constant aperture, and the duct is straight, and aeration rate is constant, and resistance was less when air passed through micropore, and power consumption is lower;
3. the micropore size on the aeration membrane of micro-pore aeration system of the present invention reaches in the 100 μ m, can produce littler bubble, makes aerator have higher oxygen-transfer efficiency and dynamicefficiency;
4. but the aeration membrane of micro-pore aeration system of the present invention does not exist easy ageing sclerosis and fatigue rupture and the corundum class constant aperture micro-pore aeration cover easy blocking of rubber-like reducing micro-pore aeration film and the vice proper of easy to clean not; Work-ing life with overlength; Suitable with the natural life-span of manufactured materials; Can reach more than 20 years, and production cost is lower;
5. micro-pore aeration system of the present invention is during gas blower shuts down, and the water seal security device guarantees that the air in the air, ducted systems can not let out from the gas blower oral area;
6. the air, ducted systems of micro-pore aeration system of the present invention has the self-adaptation regulatory function, can adapt to the variation and the fluctuation of aeration tank hydraulic pressure automatically, guarantees that aeration tank sewage can not get in the air pipe network from the micro-pore aeration film, keeps the inner cleaning of pipe network;
7. when micro-pore aeration system of the present invention was carried out intermittent blast aeration operation scheme, the quiescent interval can be unrestricted, needn't the emptying aeration tank, and convenient management;
8. micro-pore aeration system of the present invention can be understood sealed state in the air pipe network in real time through observing the change of level situation in the terminal water-freeing arrangement, and the discovery effluent seepage gets into and can in time get rid of, and is easy and simple to handle.
Accompanying drawing is described
Figure the-1st, air, ducted systems synoptic diagram of the present invention.
Figure the-2nd, structural representation when micro-pore aeration equipment of the present invention is opened.
Figure the-3rd, structural representation during micro-pore aeration device shutdown of the present invention.
Among the figure-1: micro-pore aeration equipment 1, gas distributing network 2, air feed main 3-1,3-2, breeches pipe 4; Main valve 5, gas blower 6, air filter 6-1, U-shaped pipe 7; Adjustable pipe 8, pressurize pipe 9, water intaking valve 10, draining regulating tank 11; Water shoot 12, water discharge valve 13, vent pipe 14-1,14-2, water intaking valve 15; Blow-off valve 16, aeration tank 17, absolute altitude
Among figure-2 and the figure-3: hydrophobic effect micro-pore aeration diaphragm 1-1, soft capsule 1-2, base 1-3, gland 1-4, fitting nut 1-5 regulates chamber 1-6, hole 1-7, inlet mouth 1-8, lift check valve plate 1-9, locating slide rod 1-10.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
When tubing system was provided with the water seal security device, the lift check valve plate 1-9 and the locating slide rod 1-10 of micro-pore aeration equipment 1 can cancel.
One, system flow
A kind of micro-pore aeration system is used for the aerobic aeration of sewage biochemical treatment.
According to figure-1 and above-mentioned, working order of the present invention is divided into aeration operation condition, intermittently operating mode and initial operating mode, and division is following:
1. aeration operation condition
Air is pressurizeed by gas blower 6 after the clean processing of air filter 6-1; In the inlet mouth 1-8 of main valve 5, breeches pipe 4, air feed main 3-2,3-1, gas distributing network 2, micro-pore aeration equipment 1 gets into adjusting chamber 1-6; Be discharged in the aeration tank 17 through hydrophobic effect micro-pore aeration diaphragm 1-1 again, sewage carried out aeration biochemical handle.
Under normal aeration state, the water in the breeches pipe 4 stores in U-shaped pipe 7 is pressed into adjustable pipe 8 under the effect of blast; Possibly produce in the gas distributing network 2 a spot of condense or percolating water through water shoot 12 from flowing in the displacement can 11 of terminal water-freeing arrangement, lean on the effect of blast to be discharged to outside the system through vent pipe 14.Water discharge valve 13 is in normally open, and water intaking valve 15 is in normally off with blow-off valve 16; Aqueous vapor interface in the U-shaped pipe 7 when the gravity of water column in blast and the voltage stabilizing tube 9 reaches balance, is on the stable position behind the decline certain altitude, and water can not overflow from voltage stabilizing tube 9.
Under normal aeration state; When blast in the displacement can 11 of terminal water-freeing arrangement and the water column gravity in the vent pipe 14-2 reach balance; Aqueous vapor interface in the vent pipe 14-1 is on the stable position, and the interior air of pipe network can not be let out from vent pipe 14-2.
2. operating mode intermittently
When aerating system is taked intermittent operation scheme or needed repairing because of the power-equipment fault; When gas blower 5 shuts down; Blast in the air line drops near atmospheric pressure thereupon, and at this moment, the gravity of water column is greater than the blast in the air line in the voltage stabilizing tube 9; Under the effect of gravity; The water that stores in the adjustable pipe 8 carries out hydraulic seal in U-shaped pipe 7 in time is back to breeches pipe 4, the air in the gas distributing network 2 can not let out from the oral area of gas blower 6, guarantees to be full of air in the gas distributing network 2; To stop aeration tank 17 sewage to get in the gas distributing network 2, make aeration tank 17 hydraulic pressure, gas distributing network 2 internal gas pressures and breeches pipe 4 interior hydraulic pressure three partss be in the equilibrium state that pressure equates from micro-pore aeration equipment 1.
During gas blower 6 shut down, can the aerating pore through micro-pore aeration equipment 1 to get into aeration tank 17 soluble in water or because of pipeline continues a small amount of seepage because of air, causes gas distributing network 2 internal gas pressures to descend; Produce pressure reduction with aeration tank 17 hydraulic pressure; This pressure reduction acts on the soft capsule 1-2 through the hole 1-7 on the micro-pore aeration equipment 1 base 1-3, makes it to produce distortion, the space in the 1-6 of compression adjustment chamber; In time play self-adaptation and regulate the effect that distortion offsets pressure reduction; The equilibrium state that the above-mentioned tripartite pressure of instant recovery equates makes pressure difference always less than the anti-hydraulic pressure that penetrates of aerating pore, guarantees that sewage can not get in the air pipe network from aerating pore; Cause water impact and the water pressure fluctuations of local moment because of the water generation disturbance in the aeration tank 17; Can all regulate under the acting in conjunction of distortion in wicking property and the soft capsule 1-2 self-adaptation of hydrophobic effect micro-pore aeration diaphragm 1-1; Eliminate the disadvantageous effect that it possibly bring, guarantee that sewage can not get in the gas distributing network 2 from aerating pore.
Gas distributing network 2 issuable a small amount of percolating waters store from flowing in the displacement can 11 through water shoot 12 during gas blower 6 shuts down; Close water discharge valve 13 in the time of at the expiration earlier; Open blow-off valve 16 again and carry out the emptying draining, finish and promptly close blow-off valve 16 earlier, open water discharge valve 13 again.The full autoalarm of water can be set in the displacement can 11 monitors with convenient management at any time.
3. initial operating mode
System installs and begins to get into debugging and operation phase, before 17 water inlets of aeration tank, must operate by following precedence:
1. close water intaking valve 15 and blow-off valve 16 on the displacement can 11 earlier; Open water intaking valve 10 water filling in adjustable pipe 8; In lower end absolute altitude
time that water level rises to adjustable pipe 8 in waiting to manage, close, and this water level is called the sealing water level;
2. open water intaking valve 15 water filling in displacement can 11, treat to close when water level rises to the position of jar internal volume 1/2nd:
3. open water discharge valve 13
4. close main valve 5.
After accomplishing aforesaid operations; Beginning mild water inlet in aeration tank 17 reaches trial run water level
or design and operation water level
until the water surface and then starts and open main valve 5 beginning aerations when gas blower 6 is waited to reach specified speed.
When underwater portion pipeline and equipment are carried out repair and maintenance, need constructing again after the slow emptying of the level of aeration tank 17, repair and maintenance finishes and puts into operation by the aforesaid operations step.
When air, ducted systems is not established the water seal security device; Can regard system as with atmosphere; During gas blower 6 operations, air is discharged in the aeration tank 17 through hydrophobic effect micro-pore aeration diaphragm 1-1 by the lift check valve plate 1-9 entering adjusting chamber 1-6 that blast backs down micro-pore aeration equipment 1 again; When gas blower 6 is out of service; Lift check valve plate 1-9 related locating slide rod 1-10 under the effect of gravity falls after rise and closes; The air of regulating in the 1-6 of chamber can not reflux from inlet mouth 1-8; Between hydrophobic effect micro-pore aeration diaphragm 1-1 and soft capsule 1-2, form air bag, the self-adaptation of soft capsule 1-2 is regulated metamorphosis makes air bag internal gas pressure and aeration tank 17 hydraulic pressure maintain equilibrium state, guarantees that sewage can not get in the adjusting chamber 1-6 from aerating pore.
Two, type selection calculation
Type selection calculation of the present invention mainly is to confirm the material requirement of micro-pore aeration equipment 1 and specification, the size of breeches pipe 4, U-shaped pipe 7, adjustable pipe 8, voltage stabilizing tube 9 and terminal water-freeing arrangement.
1. micro-pore aeration equipment 1
Hydrophobic effect of the present invention is meant: the side at the micro-pore aeration film that possesses hydrophobic property applies certain hydraulic pressure, and water can not get into opposite side from micropore under the capillary action of micropore, and peak the present invention of this hydraulic pressure is called the anti-hydraulic pressure that penetrates.According to the capillary action principle of water, the anti-size that penetrates hydraulic pressure of hydrophobic effect micro-pore aeration diaphragm 1-1 of the present invention is according to computes
h＝10
3|2δcosθ/(rρg)|(1)
H-micro-pore aeration film is anti-in the formula penetrates hydraulic pressure, water column, mm
The surface tension of δ-water, N.m
-1, when water temperature changed in 10～50 ℃ scope, the δ value was 74.14～67.67 * 10
-3N.m
-1Change in the scope
The density of ρ-water, 1 * 10
3Kg.m
-3
The contact angle on θ-water and aeration film surface
R-aerating pore radius, μ m
G-universal gravity constant, 9.8N.kg
-1
10
3-unit transformation constant
Find out that by formula (1) the micro-pore aeration film is anti-to penetrate that hydraulic pressure is directly proportional with the size of contact angle θ, and the aerating pore radius relation of being inversely proportional to.Aeration film of different nature surface has different contact angle θ; When contact angle θ＞90 °, show that the film surface has hydrophobic property; Fluoroplastic 46 (FEP, θ=115 °), tetrafluoroethylene (PTFE, θ=114 °), ultrahigh molecular weight polyethylene(UHMWPE) (UHMWPE; θ=107 °) and fluoro-containing coating etc. all have the good hydrophobic characteristic, all can be used to make the micro-pore aeration diaphragm.Use lotus leaf effect coating covering surfaces; Make the aeration film possess superhydrophobic characteristic, reach near 180 ° with the contact angle θ of water, thereby obtain fabulous anti-penetrativity; And possessing excellent self-cleaning net work ability, is to make hydrophobic effect micro-pore aeration diaphragm-operated ideal material.
The micropore size of hydrophobic effect micro-pore aeration diaphragm 1-1 is controlled in the 250 μ m, generally in 100 μ m, about micropore arrangement pitch 2mm.
Self-adaptation through the adjusting chamber 1-6 volume accumulative total sum of calculating micro-pore aeration equipment 1 is in the air, ducted systems is regulated cubic capacity.
Micro-pore aeration equipment 1 physical dimension and same category of device sizableness, except that hydrophobic effect micro-pore aeration diaphragm 1-1 and soft capsule 1-2, other parts can adopt plastic hot such as PVC, PE and ABS to cast the type manufacturing.
2.Y shape Y-tube 4, U-shaped pipe 7, adjustable pipe 8 and voltage stabilizing tube 9
The volume of pipeline section during the volume of the big pipeline section of breeches pipe 4 is not less than, promptly
V
d＝KV
Z (2)
V in the formula
dThe big pipeline section volume of-breeches pipe (4)
V
ZPipeline section volume in the-breeches pipe (4)
The K-SF, 2.0
The volume of adjustable pipe 8 is relevant with the sealing water level height of breeches pipe 4; Be the volume sum below the sealing water level in the left and right pipeline section; When sealing water level elevation when
is in
with
middle, then do
V
j＝(V
d+V
Z)/2(3)
Or
V
j＝(K+1)V
Z/2(4)
V in the formula
j-adjustable pipe (8) volume
The internal diameter of voltage stabilizing tube 9 is less than the internal diameter of U-shaped pipe 7; Generally the ratio of both internal diameters is between 1/2～2/3; The differential water pressures of upper end mouth of pipe absolute altitude
and U-shaped pipe 7 bottom absolute altitudes
is greater than the maximum wind pressure of aeration operation condition; When the surperficial absolute altitude
of U-shaped pipe 7 bottom absolute altitudes
and hydrophobic effect micro-pore aeration diaphragm 1-1 during at sustained height, mouth of pipe absolute altitude
is not less than atmospheric drag sum under aeration tank 17 operating water levels
and the hydrophobic effect micro-pore aeration diaphragm 1-1 maximum duty.
3. terminal water-freeing arrangement
The volume of displacement can 11 is vent pipe 14-1, more than 2 times of 14-2 volume sum; The discrepancy in elevation of vent pipe 14-2 mouth of pipe absolute altitude
and 11 end of displacement can absolute altitude
equal the aeration tank water level indicator with
with the discrepancy in elevation of hydrophobic effect micro-pore aeration diaphragm 1-1 surface absolute altitude
, 11 end of displacement can absolute altitude
is not less than the atmospheric drag Xia the hydrophobic effect micro-pore aeration diaphragm 1-1 maximum duty with the discrepancy in elevation of vent pipe 14-1 lower end
.
Other
Air line adopts antibiotic anti-mildew plastic pipe;
Aerating system adopts no mist of oil air source;
The type selecting of gas blower, the design calculation of air line are undertaken by the requirement of water supply and drainage related specifications, and construct and final acceptance of construction by checking and accepting standard.
Three, conclusion
It is to build the indispensable important step of environmental protection society that sewage purification is handled, and sewage treatment facility needs a large amount of electric power to keep day-to-day operation, and unit WWT current consumption is generally 0.15～0.28KWh/m
3, wherein the current consumption of aerobic aeration generally accounts for 40～70%, and very big with the dynamicefficiency relation of aerator, micro-pore aeration equipment can significantly reduce the operation power consumption with high dynamicefficiency, has huge economic implications.At present a large amount of micro-pore aeration equipment that use almost are the rubber diaphragm class, and home-made is then shorter work-ing life also with regard to 3,5 years best American-European product work-ing life for performance.This equipment has outstanding advantages such as high-level efficiency, long lifetime, low cost and easy maintenance concurrently, is significantly reducing management and maintenance cost simultaneously, and unit WWT current consumption is expected to be reduced to 0.15KWh/m
3Below, have fabulous market outlook.
Claims (6)
1. micro-pore aeration system; System comprises gas distributing network (2), air feed main (3-1), horizontal air feed main (3-2), main valve (5), gas blower (6) and air filter (6-1); It is characterized in that; Go up several micro-pore aeration equipment (1) of connection at gas distributing network (2), micro-pore aeration equipment (1) places the bottom of aeration tank (17); Gas distributing network (2) is connected with air feed main (3-1) and terminal water-freeing arrangement respectively; Go up access water seal security device at horizontal air feed main (3-2); The water seal security device is made up of breeches pipe (4), U-shaped pipe (7), adjustable pipe (8) and voltage stabilizing tube (9); Promptly go up at horizontal air feed main (3-2) and insert breeches pipe (4), the below mouth of pipe of breeches pipe (4) is connected with an end of U-shaped pipe (7), the lower end of another termination adjustable pipe (8) of U-shaped pipe (7); The lower end of voltage stabilizing tube (9) is connected with the upper end of adjustable pipe (8), its upper end mouth of pipe and atmosphere; The lower end absolute altitude of adjustable pipe (8)
is positioned between the absolute altitude
of point of crossing absolute altitude
and horizontal air feed main (3-2) of breeches pipe (4); Upper end absolute altitude
is higher than absolute altitude
breeches pipe (4) of horizontal air feed main (3-2) and is made up of the pipeline section of large, medium and small different inner diameters; What wherein be connected with gas blower (6) outlet does; What be connected with air feed main (3-1) is big, and what be connected with U-shaped pipe (7) is little; Gas blower (6) inlet is connected with air filter (6-1) outlet.
2. micro-pore aeration system according to claim 1; It is characterized in that; Described micro-pore aeration equipment (1) is made up of hydrophobic effect micro-pore aeration diaphragm (1-1), soft capsule (1-2), lift check valve plate (1-9), base (1-3), gland (1-4) and fitting nut (1-5); By order base (1-3), soft capsule (1-2), hydrophobic effect micro-pore aeration diaphragm (1-1) engage in twos from top to bottom; Soft capsule (1-2) is tight fastening with fitting nut (1-5) with base (1-3), and hydrophobic effect micro-pore aeration diaphragm (1-1) and soft capsule (1-2) are tight fastening with gland (1-4) and base (1-3); Form between soft capsule (1-2) and the hydrophobic effect micro-pore aeration diaphragm (1-1) and regulate chamber (1-6), have the hole (1-7) that makes the two sides penetrating on the base (1-3); Lift check valve plate (1-9) places to be regulated between interior inlet mouth in chamber (1-6) (1-8) and the hydrophobic effect micro-pore aeration diaphragm (1-1), is fixed with locating slide rod (1-10) on the lift check valve plate (1-9).
3. micro-pore aeration system according to claim 1; It is characterized in that; Described terminal water-freeing arrangement is made up of displacement can (11) and water shoot (12), water discharge valve (13), first vent pipe (14-1), second vent pipe (14-2), water intaking valve (15) and blow-off valve (16); One end of water shoot (12) is connected with gas distributing network (2) is terminal, and the other end inserts displacement can (11); Pick out first vent pipe (14-1) downwards from displacement can (11) bottom; Drop to absolute altitude
the back mouth of pipe and turn to connection second vent pipe (14-2); The other end mouth of pipe of second vent pipe (14-2) is located and atmosphere at absolute altitude
; Absolute altitude
displacement can (11) top and bottom that absolute altitude
is higher than horizontal air feed main (3-2) are respectively equipped with water intaking valve (15) and blow-off valve (16), and water shoot (12) is provided with water discharge valve (13).
4. micro-pore aeration system according to claim 2; It is characterized in that; The hydrophobic effect micro-pore aeration diaphragm (1-1) of said micro-pore aeration equipment (1) adopts the surface to have the made of good hydrophobic property or superhydrophobic characteristic, and the aerating pore aperture is in 250 μ m.
5. micro-pore aeration system according to claim 4 is characterized in that, the internal space that forms between the hydrophobic effect micro-pore aeration diaphragm (1-1) of said micro-pore aeration equipment (1) and the water seal security device comprises the volume adjusted of equilibrium air pressure and hydraulic pressure.
6. micro-pore aeration system according to claim 1 is characterized in that, the breeches pipe of said water seal security device (4) can also be other forms of Y-tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101016386A CN101774681B (en) | 2010-01-27 | 2010-01-27 | Micro-pore aeration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101016386A CN101774681B (en) | 2010-01-27 | 2010-01-27 | Micro-pore aeration system |
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| CN101774681A CN101774681A (en) | 2010-07-14 |
| CN101774681B true CN101774681B (en) | 2012-04-18 |
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|---|---|---|---|
| CN2010101016386A Active CN101774681B (en) | 2010-01-27 | 2010-01-27 | Micro-pore aeration system |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982428A (en) * | 2010-10-22 | 2011-03-02 | 中国人民大学 | Ultramicropore aerator used for high organic load sewage treatment |
| KR101291238B1 (en) * | 2010-11-11 | 2013-08-01 | 주식회사 그린기술산업 | The membrane diffusers with function of preventing reverse flow into these diffusers |
| CN102188854B (en) * | 2011-05-06 | 2013-04-10 | 北京理工中兴科技股份有限公司 | Corundum-aerator-based reusable precision filtering device and filtering method thereof |
| CN107986465A (en) * | 2017-12-30 | 2018-05-04 | 绿地环保科技股份有限公司 | Hydrophobic aerator |
| CN109867539B (en) * | 2019-03-07 | 2024-02-27 | 浙江大学 | Sleeve type anti-blocking aeration spray head for aeration of large composting facility and method thereof |
| CN112284702A (en) * | 2020-10-16 | 2021-01-29 | 中铁环境科技工程有限公司 | Method for detecting whether microporous aeration disc or aeration pipe network is damaged or not |
| CN112194252A (en) * | 2020-10-16 | 2021-01-08 | 中铁环境科技工程有限公司 | Domestic sewage treatment equipment capable of easily identifying whether microporous aeration disc is damaged or not |
| CN113072174B (en) * | 2021-02-25 | 2022-09-13 | 镇江伊博特环保科技有限公司 | Anti-backflow perforation aerator |
| CN113670394B (en) * | 2021-08-12 | 2023-07-28 | 河北工大科雅能源科技股份有限公司 | Metering control device for wide-range self-adjusting instrument parameters |
| CN115415289A (en) * | 2022-08-19 | 2022-12-02 | 上海电力大学 | Be applied to good oxygen restoration gas injection well device of high leachate water level landfill |
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