CN103124697A - Membrane air diffuser - Google Patents
Membrane air diffuser Download PDFInfo
- Publication number
- CN103124697A CN103124697A CN2011800456076A CN201180045607A CN103124697A CN 103124697 A CN103124697 A CN 103124697A CN 2011800456076 A CN2011800456076 A CN 2011800456076A CN 201180045607 A CN201180045607 A CN 201180045607A CN 103124697 A CN103124697 A CN 103124697A
- Authority
- CN
- China
- Prior art keywords
- air
- feed port
- constituting parts
- air feed
- sheet component
- Prior art date
- 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.)
- Granted
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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
- C02F3/20—Activated sludge processes using diffusers
- C02F3/201—Perforated, resilient plastic diffusers, e.g. membranes, sheets, foils, tubes, hoses
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Life Sciences & Earth Sciences (AREA)
- 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
A membrane air diffuser is provided with: a body which is formed by joining together a lower structure member (3) and an upper structure member (4) at the peripheral edges of both the lower and upper structure members (3, 4), the lower structure member (3) consisting of a sheet-like material or a plate-like material, the upper structure member (4) consisting of a sheet-like material; and an air supply mouth section (8) which penetrates through the upper structure member (4), is joined in a watertight manner at the outer surface of the air supply mouth section (8) to the upper structure member (4), can be in contact in a watertight manner with the lower structure member (3) at the opening edge of the inner opening of the air supply mouth section (8), the inner opening facing the lower structure member (3), and can be separated from the lower structure member (3).
Description
Technical field
The present invention relates to be arranged on the loose device of air of diaphragm type in the groove of lower water processing establishment etc., relate in order to carry out a biological disposal upon or to stir and the technology of the gas that falls apart.
Background technology
This loose device of air for example has Figure 15 to device shown in Figure 17 at present.It installs loose air film 52 at upper surface of bed-plate 51, and the prescribed position on the face of loose air film 52 arranges air feed port 53, is communicated with between air feed port 53 and bed-plate 51 and loose air film 52.Loose air film 52 forms such structures, a plurality of apertures 54 is set on synthetic resin film or synthetic rubber film that is:, utilize fixed part 55 will fall apart air film 52 around being fixed on bed-plate 51.
As shown in figure 16, when out of service, loose air film 52 is subject to the upper surface butt of hydraulic pressure and bed-plate 51, and the aperture 54 of loose air film 52 forms closing condition.When turning round, supply pressurized air between bed-plate 51 and loose air film 52.At this moment, as shown in figure 17, be compressed the pressure of air, loose air film 52 expands discretely from the upper surface of bed-plate 51, forms the state that aperture 54 is opened, and air passes aperture 54 loose gas in the water.
As the loose device of air with this spline structure, the loose device of air of putting down in writing is for example arranged in No. 3997176, Japanese patent gazette patent.Should loose device of air establish the loose air film of the sheet that is formed with a plurality of trickle pores being on a face of plate shaped bed-plate, utilized will fall apart four edge parts of air film of frame body to be fixed on four edge parts of bed-plate.
In this loose device of air, when stopping after loose device of air is carried air, the air supply mouth being opened wide to atmosphere, discharge residual air, loose air film is shunk fast.By this operation, shake off the dirt that enters in trickle pore.Then, again carry air, loose air film is expanded quickly, expand trickle pore, thereby discharge dirt.
In addition, the scatterer of record in No. 2500071, Japanese patent gazette patent, have in central authorities the upper surface that air sprays the support of the circular plate type of using nozzle, covering has the rubber barrier film processed of the circle of a plurality of slits, air ejection at support forms the projection of annular with the periphery of nozzle, the central authorities with barrier film form the part that there is no slit simultaneously.
And, when stopping sudden and violent gas, under the promotion of hydraulic pressure, there is no the part of slit on barrier film with the overshooting shape tight joint, thereby anti-sealing refluxes with nozzle to the air ejection.
Summary of the invention
Invent problem to be solved
Yet, as the mounting structure of air feed port, for example record to some extent in No. 2007-167856, Japanese Patent Publication communique Unexamined Patent.Its summary as shown in figure 18.Here represented to arrange the structure of air feed port 102 on the face of loose air film 101.
The gas supply part 104 of configuration air feed port 102 on bed-plate 103 is at the placed around filler 106 of the air Link Port 105 of gas supply part 104.The loose air film 101 of configuration is to cover gas supply part 104 and filler 106, and air Link Port 105 is outstanding to the upper surface side of loose air film 101.In the upper surface side of loose air film 101, pressing plate 107 be configured in air Link Port 105 around, the threaded portion 108 that screws up with air Link Port 105 utilizes its fastening force to press pressing plate 107, loose air film 101 by watertight be clipped between pressing plate 107 and filler 106.Then, fixed frame 110 is fixed by the outer peripheral edges of 109 pairs of loose air films 101 of filler and the outer peripheral edges of bed-plate 103.
Structure if so, in case stop to air feed port 102 supply air, the processed liquid on every side that is subject to hydraulic pressure flows between bed-plates 103 and loose air film 101 by loose air film 101, (omits and illustrate) internal reflux from air feed port 102 to pipe arrangement.
The present invention makes in order to solve above-mentioned problem, even the loose device of air of the diaphragm type that provides the processed liquid around also can preventing under the state that stops supplying gas to reflux is provided.
Be used for solving the means of problem
In order to solve above-mentioned problem, the diaphragm type of the present invention device of air that falls apart is characterized in that having body and air feed port; Described body is bonded with each other at both sides' circumference by the bottom constituting parts that will be made of sheet component or plate-shaped member and the top constituting parts that is made of sheet component and forms; Described air feed port connects constituting parts ground, top in outer side and top constituting parts water joint, and, with the opening edge of bottom constituting parts interior side opening in opposite directions can with bottom constituting parts watertight butt, and can separate with the bottom constituting parts.
According to this structure, under the state of not supplying gas to body interior by air feed port, top constituting parts and bottom constituting parts are subject to outside hydraulic pressure and carry out the densification butt, simultaneously, the interior side opening of air feed port carries out the watertight butt at its opening edge and bottom constituting parts, the interior side opening of bottom constituting parts sealing air feed port.Thereby the processed liquid around can preventing refluxes.
In case supply gas by air feed port, when the top constituting parts expands, air feed port separates from the bottom constituting parts, and the interior side opening of air feed port opens wide.
In addition, the loose device of air of diaphragm type of the present invention is characterised in that, is flexible material with the position of air feed port butt and at least one party among the position of the opening edge of air feed port and bottom constituting parts butt in the constituting parts of bottom.
According to this structure, the watertightness of the abutment portion of the opening edge of air feed port and bottom constituting parts improves, and the effect of anti-backflow improves.
In addition, the loose device of air of diaphragm type of the present invention is characterised in that, body is the pocket that bottom constituting parts and top constituting parts are made of sheet component.
According to this structure, when stopping supplying gas to air feed port, bottom constituting parts and top constituting parts are easily by the hydraulic pressure close contact in groove, and the effect of anti-backflow improves.
In addition, the loose device of air of diaphragm type of the present invention is characterised in that, air feed port and opening edge bottom constituting parts butt are provided with multiple around the axle center of air feed port.
According to this structure, because the opening edge of air feed port and the abutment portion of bottom constituting parts form multiplet structure, thereby stopping property improves.
In addition, the loose device of air of diaphragm type of the present invention is characterised in that, the top constituting parts is airproof around air feed port.
In addition, the loose device of air of diaphragm type of the present invention is characterised in that, is provided with flange part, this flange part be formed with around the opening edge of interior side opening can with bottom constituting parts butt or the flange surface that separates.
Reactive tank of the present invention is characterised in that to possess the cell body of storage object treatment solution and be configured in the interior loose device of air of cell body, and loose device of air is made of device of air loose according to the described diaphragm type of any one in technical scheme 1 to 5.
The effect of invention
As mentioned above, according to the present invention, even under the state that stops supplying gas, also can pass through opening edge and the bottom constituting parts watertight butt of the interior side opening of air feed port, the processed liquid around preventing refluxes.
Description of drawings
Fig. 1 means the vertical view of the loose device of air of diaphragm type of embodiments of the present invention.
Fig. 2 means the sectional view of the air feed port of this embodiment.
Fig. 3 means the below stereographic map of the air feed port of this embodiment.
Fig. 4 means the top perspective view of the air feed port of this embodiment.
Fig. 5 represents the air feed port of other embodiments of the present invention, is that the A-A of Fig. 6 is to looking sectional view.
Fig. 6 is the upward view of the air feed port of present embodiment.
Fig. 7 means the sectional view of the air feed port of other embodiments of the present invention.
Fig. 8 means the sectional view of the air feed port of other embodiments of the present invention.
Fig. 9 means the sectional view of the air feed port of other embodiments of the present invention.
Figure 10 means the sectional view of the air feed port of other embodiments of the present invention.
Figure 11 means the vertical view of the loose device of air of diaphragm type of other embodiments of the present invention.
Figure 12 means the sectional view of the air feed port of this embodiment.
Figure 13 means the below stereographic map of the air feed port of this embodiment.
Figure 14 means the top perspective view of the air feed port of this embodiment.
Figure 15 means the stereographic map of existing loose device of air.
Figure 16 means the schematic diagram of the effect of existing loose device of air.
Figure 17 means the schematic diagram of the effect of existing loose device of air.
Figure 18 means the sectional view of the structure of existing air feed port.
Embodiment
Below based on accompanying drawing, embodiments of the present invention are described.In Fig. 1 to Fig. 4, the body 2 of the loose device of air 1 of diaphragm type is the structure that bottom constituting parts and top constituting parts are engaged with each other and form at both sides' circumference.In the present embodiment, forming the flexible materials such as urethane that the bottom sheet component 3 of bottom constituting parts and top constituting parts and top sheet component 4 strengthen by urethane, with trevira or nylon fiber, silicon rubber consists of.
In the present embodiment, body 2 is the packed bodies that utilize melting to make bottom sheet component 3 and top sheet component 4 be engaged with each other and form.But the bottom constituting parts also can be used the plate-shaped member of rigid material.Here, the pocket of body 2 forms the shape that is banded elongation, but the shape of pocket can be also balloon shape, circular plate type, square, rhombus, any shape such as cylindrical.
Upper surface in a side of pocket arranges air feed port 8, and air feed port 8 is the structures that are connected with air supplies (omitting diagram).Air feed port 8 forms following shape, that is: connect airproof sheet component 7 in top sheet component 4, outer openings 9 is positioned at the outside of body 2, interior side opening 10 is at the inside of body 2 and bottom sheet component 3 opening opposite to each other, the opening edge 11 of interior side opening 10 can with bottom sheet component 3 watertight butts.
The loose device of air of diaphragm type of the present invention can be applied to various reactive tanks, for example, if have the cell body of storage object treatment solution in water treatment etc. and be configured in the reactive tank of the loose device of air in cell body, should loose device of air just can use the diaphragm type device of air that falls apart.
Below describe with regard to the effect of said structure.Under the running halted state of not supplying gas to the inside of body 2 by air feed port 8, hydraulic pressure around pocket 2 is subject to, the sheet component 6 of the ventilation property of top sheet component 4 and airproof sheet component 7 carry out pressure contact with the airproof sheet component of bottom sheet component 3, thereby close contact between flexible material has been brought into play intercepting water property of height.
And, at the interior side opening 10 of air feed port 8 under the lower ora terminalis 13 of its opening edge 11 and bottom sheet component 3 watertight butts and flange part 12 and the multi-sealed state of bottom sheet component 3 watertight butt ground formation, the interior side opening 10 of the bottom sheet component 3 inaccessible air feed ports 8 in watertight ground.
Therefore, even water has entered the inside of body 2 from the aperture of the sheet component 6 of ventilation property, due to around air feed port 8 by multi-sealed, therefore can preventing from being subject on every side, the water of hydraulic pressure refluxes by air feed port 8.
Therefore, can prevent the problem that causes because of sewage backflow, such as the pressure-losses increase, foaming deflection during loose gas etc.Therefore, need not in order to prevent the problems referred to above the gas that always falls apart, can stop loose gas fully, energy saving, maintainability are improved.
In the running, air supplies (omitting diagram) is by the air of air feed port 8 to the inner supply of the pocket specified pressure of body 2.When this turned round, the pocket utilization was expanded to the pressure of the air of internal feed, and when top sheet component 4 expanded, air feed port 8 separated with bottom sheet component 3, and the interior side opening 10 of air feed port 8 opens wide.The air that flows into body 2 inside is sprayed from territory, loose gas area 5 by the fall apart sheet component 6 of ventilation property of air film of formations, and gas falls apart the air that sprays in the processing object water of reactive tank inside.Like this, the interior side opening 10 of air feed port 8 carries out switch by moving up and down of air feed port 8, therefore need not to arrange in the lower end of air feed port 8 air passageways that opens wide all the time as in the past.
As shown in Figure 5 and Figure 6, by flange part 12 around the lower end side of air feed port 8, arrange and be connected a plurality of ribs 14 that are connected with air feed port 8 with flange part, quantity that can Set arbitrarily rib 14.Utilize this rib 14 to strengthen the structure of flange part 12 on intensity, thereby can suppress to cause air feed port 8 impaired with the watertightness of bottom sheet component 3 with watertightness and the flange part 12 of bottom sheet component 3 because of the distortion of flange part 12 and air feed port 8.
Also can form the structure that flange part 12 doubles as the lower end side of air feed port 8 as shown in Figure 7, air feed port 8 is formed shape in the lower end side hole enlargement.
Also can as shown in Figure 8 flange part 12 be formed even shape, can enlarge the area that flange part 12 contacts with bottom sheet component 3 watertights.
Also can be as shown in Figure 9, by flange part 12 around the lower end side of air feed port 8, the circumferential rib 15 around air feed port 8 is set, the circumferential rib 15 of any amount can be set between air feed port 8 and flange part 12.
According to this structure, form multi-sealed state under the interior side opening 10 of bottom sheet component 3 watertight ground inaccessible air feed ports 8 at its opening edge 11 and bottom sheet component 3 watertight butts and flange part 12 and circumferential rib 15 at its lower end and bottom sheet component 3 watertight butts at the interior side opening 10 of air feed port 8.Therefore, around air feed port 8, by multi-sealed, the function that the water when stoping air feed port 8 to be closed refluxes increases.
Also can as shown in figure 10 flange part 12 be formed even shape, increase the area that flange part 12 contacts with bottom sheet component 3 watertights, and for example configure O shape circle 16 as sealing member at the lower surface of flange part 12.
Figure 11 to Figure 14 represents other embodiments of the present invention.At this, the flange part 121 of smooth plate shape is set around the lower ora terminalis 13 of the flange part 12 of hollow shape, flange part 121 form around the opening edge 11 of interior side opening 10 can with bottom sheet component 3 butts or the flange surface 122 that separates.
The flange part 121 of the plate shape that this is smooth also can be arranged on either party of the inboard of lower ora terminalis 13 of flange part 12 of hollow shape and the outside, perhaps across inboard and ground, outside setting.The flange part 121 of smooth plate shape is formed by rubber, resin etc., and its shape can be circular, oval, polygonal any.In addition, also can be in the outside bottom surface of bottom sheet component 3, arrange with the flange part 12 of hollow shape in opposite directions or with flange part 121 baffle plate in opposite directions of smooth plate shape.
Around the lower end side of the flange part 12 of hollow shape, arrange and a plurality of ribs 141 that the flange part 12 of hollow shape is connected with the flange part 121 that is connected, can at random set the quantity of rib 141.Utilize this rib 141 to strengthen the structure of flange part 121 on intensity, thereby can suppress to cause air feed port 8 impaired with the watertightness of bottom sheet component 3 with watertightness and the flange part 121 of bottom sheet component 3 because of the distortion of flange part 121 and air feed port 8.
According to this structure, when carrying out exhaust, the interior side opening 10 of the bottom sheet component 3 inaccessible air feed ports 8 in watertight ground, simultaneously the flange surface 122 of the flange part 121 of smooth plate shape around the opening edge 11 of interior side opening 10 with bottom sheet component 3 butts, thereby by the flange part 121 of smooth plate shape around the bottom sheet component 3 in zone be drawn into flat condition.
Therefore, bottom sheet component 3 does not have fold ground with interior side opening 10 butts of flat condition and air feed port 8, can guarantee reliable watertightness.
In the above-described embodiment, be all that the bottom constituting parts is illustrated as sheet component, but in the present invention, the bottom constituting parts is not limited to sheet component, also can use hard plate.In addition, preferably use flexible material with at least one party of the opening edge of the butt position of air feed port butt or air feed port on the constituting parts of bottom.If the bottom constituting parts is used hard plate, also can be at the upper surface lamination soft sheet material of hard plate.
Claims (7)
1. the loose device of air of diaphragm type, is characterized in that having body and air feed port; Described body is bonded with each other at both sides' circumference by the bottom constituting parts that will be made of sheet component or plate-shaped member and the top constituting parts that is made of sheet component and forms; Described air feed port connects constituting parts ground, top in outer side and top constituting parts water joint, and, with the opening edge of bottom constituting parts interior side opening in opposite directions can with bottom constituting parts watertight butt, and can separate with the bottom constituting parts.
2. the loose device of air of diaphragm type according to claim 1, is characterized in that, is flexible material with the position of air feed port butt and at least one party among the position of the opening edge of air feed port and bottom constituting parts butt in the constituting parts of bottom.
3. the loose device of air of diaphragm type according to claim 1, is characterized in that, body is the pocket that bottom constituting parts and top constituting parts are made of sheet component.
4. the loose device of air of diaphragm type according to claim 1, is characterized in that, air feed port and opening edge bottom constituting parts butt are provided with multiple around the axle center of air feed port.
5. the loose device of air of diaphragm type according to claim 1, is characterized in that, the top constituting parts is airproof around air feed port.
6. the loose device of air of diaphragm type according to claim 1, is characterized in that, is provided with flange part, this flange part be formed with around the opening edge of interior side opening can with bottom constituting parts butt or the flange surface that separates.
7. a reactive tank, is characterized in that, possesses the cell body of storage object treatment solution and be configured in the interior loose device of air of cell body, and loose device of air is made of the loose device of air of the described diaphragm type of any one according to claim 1 to 6.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010242878A JP5637815B2 (en) | 2009-11-06 | 2010-10-29 | Membrane diffuser |
| JP2010-242878 | 2010-10-29 | ||
| PCT/JP2011/055988 WO2012056740A1 (en) | 2010-10-29 | 2011-03-15 | Membrane air diffuser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103124697A true CN103124697A (en) | 2013-05-29 |
| CN103124697B CN103124697B (en) | 2015-07-01 |
Family
ID=45996412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180045607.6A Expired - Fee Related CN103124697B (en) | 2010-10-29 | 2011-03-15 | Membrane air diffuser |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103124697B (en) |
| WO (1) | WO2012056740A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003011442A1 (en) * | 2001-07-21 | 2003-02-13 | Bontec Ag | Aerator plate for water aeration |
| CN1635290A (en) * | 2003-12-30 | 2005-07-06 | 上海胜狮冷冻货柜有限公司 | Float with multiple seal |
| JP2007190462A (en) * | 2006-01-17 | 2007-08-02 | Jfe Engineering Kk | Air diffusion plate and air diffuser |
| JP2010104900A (en) * | 2008-10-30 | 2010-05-13 | Kubota Corp | Membrane type air diffusion device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5154957U (en) * | 1974-10-25 | 1976-04-27 | ||
| DE2942607C2 (en) * | 1979-10-22 | 1982-08-26 | Rudolf 8551 Adelsdorf Messner | Air distributor for aerating water with fine bubbles |
| DE3429197C1 (en) * | 1984-08-08 | 1986-01-30 | Dieter 6369 Niederdorfelden Feike | Aerator for enriching a liquid with a gas |
| US4981623A (en) * | 1990-03-12 | 1991-01-01 | Aquatec, Inc. | Diffuser for aeration basin |
| JP3997176B2 (en) * | 2003-04-16 | 2007-10-24 | 株式会社神鋼環境ソリューション | Operation method for preventing clogging of air diffuser |
| JP2007307439A (en) * | 2006-05-16 | 2007-11-29 | Kubota Corp | Purifying chamber and nozzle object |
-
2011
- 2011-03-15 CN CN201180045607.6A patent/CN103124697B/en not_active Expired - Fee Related
- 2011-03-15 WO PCT/JP2011/055988 patent/WO2012056740A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003011442A1 (en) * | 2001-07-21 | 2003-02-13 | Bontec Ag | Aerator plate for water aeration |
| CN1635290A (en) * | 2003-12-30 | 2005-07-06 | 上海胜狮冷冻货柜有限公司 | Float with multiple seal |
| JP2007190462A (en) * | 2006-01-17 | 2007-08-02 | Jfe Engineering Kk | Air diffusion plate and air diffuser |
| JP2010104900A (en) * | 2008-10-30 | 2010-05-13 | Kubota Corp | Membrane type air diffusion device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103124697B (en) | 2015-07-01 |
| WO2012056740A1 (en) | 2012-05-03 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20150701 Termination date: 20190315 |