CN1072662A - The refining plant of closed natural water area - Google Patents

The refining plant of closed natural water area Download PDF

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Publication number
CN1072662A
CN1072662A CN92113369A CN92113369A CN1072662A CN 1072662 A CN1072662 A CN 1072662A CN 92113369 A CN92113369 A CN 92113369A CN 92113369 A CN92113369 A CN 92113369A CN 1072662 A CN1072662 A CN 1072662A
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CN
China
Prior art keywords
natural water
water area
cylinder
closed natural
refining plant
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Pending
Application number
CN92113369A
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Chinese (zh)
Inventor
大成博文
森元光雄
佐贺孝德
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Ohshime Engineering Co
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Ohshime Engineering Co
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Publication of CN1072662A publication Critical patent/CN1072662A/en
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
  • Physical Water Treatments (AREA)

Abstract

The invention provides a kind of refining plant that is used for closed natural water area that has rotary aerating apparatus, described rotary aerating apparatus can discharge micro-bubble expeditiously in closed natural water areas such as lake, reservoir.Its structure is, the bottom vertical of closed natural water area rotary aerating apparatus is being set; The air dispensing mouth that this device is being fixed the cylinder of spiral plate by inwall and kept certain intervals ground being provided with peristome under this cylinder lower opening portion constitutes; Be fixed to again on the inwall of cylinder and be advisable being fixed on spiral plate on the spiral plate support column that is erected at center in the cylinder.

Description

The refining plant of closed natural water area
The present invention relates to a kind of refining plant that is used for closed natural water areas such as lake, water reservoir, balancing tank or reservoir, particularly relate to a kind of refining plant that has the closed natural water area of aerating apparatus, described aerating apparatus can discharge the bubble of trickle oxygen rich gas etc. to closed natural water area, and can form one powerful and stable cycling stream in closed natural water area.
Advanced along with modern humans's mode of life, the nutrient contg of natural water areas such as lake constantly increases, and physical environment is polluted and is worsened.
For purifying this kind closed natural water area, once there were various aeration modes to adopt, for example utilize ring-type in the water such as being located at the lake or tabular aerating apparatus, from its micropore to water, pressurize the ejection air, mode in order to the dispensing micro bubble, and air is input in the formed current of shear strength of revolving vane or offlet to produce the mode of micro bubble, or the water in lake etc. extracted out and then and there with the water spray mode of its spraying, also having a kind of mode is intermittently to spray air with the air blooming cylinder that is immersed among the lake water and hung from above, produces convection current with this in waters such as lake.
Adopting above-mentioned variety of way to carry out aeration, is to carry out necessary adjusting by the operational throughput of air and the quantity that is provided with of aerating apparatus basically.Yet, want to develop a kind of save the energy, to handle the high-performance closed natural water area refining plant that water such as high-quality lake are purpose, just need accomplish to produce a large amount of oxygen rich gas bubbles, and can control generating capacity, dispensing amount and the formation that comprises the cycling stream of these factors of bubble.
Among the foregoing aeration mode, no matter on diffuser, the inflator that looses, offer how tiny hole, the capital is because influenced by the capillary of bubble when bubble sprays from pore, its result nearly all becomes the diffusing gas mode of spraying formula, or produce the mode of bubble with the shear strength of revolving vane or projection body, therefore, following various shortcoming is arranged.For example, with the diffusing gas mode of diffuser, the gas plate that looses, the inflator that looses, no matter offer how little micropore, all can be because of the surface tension of the bubble of bubble when micropore sprays, the result produces the air pocket that diameter reaches several millimeters, and can not produce than its little bubble.In addition, also there are problems such as the increase that causes power charge because of turning round for a long time and micropore obstruction.
In addition, in the method for the above-mentioned shear strength that utilizes revolving vane or projection body, exist the problem of destroying hydrocoles and tiny organism owing to contact with blade or projection body.
Exist the aerating apparatus of the closed natural water area refining plant in the past of above-mentioned shortcoming or problem,, and can't in water such as lake, increase the meltage of oxygen because the generating capacity of its micro bubble is little.Also, can not form powerful and stable cycling stream owing to can not control the diameter and the generating capacity thereof of micro bubble simply, so, can not carry out the purifying treatment of lake water etc. effectively.
The present inventor is for solving the problems of the technologies described above, through concentrating on studies repeatedly, develop a kind of closed natural water area refining plant that has aerating apparatus, described aerating apparatus can easily discharge micro-bubble in water such as lake, and can form good cycling stream in this waters.
The present invention is a closed natural water area refining plant as described below.
The 1st invention is a kind of refining plant of closed natural water area, it is characterized in that, this kind refining plant is installed in the bottom of closed natural water area with rotary aerating apparatus, and described rotary aerating apparatus comprises: the gas dispensing mouth of fixing the cylinder of spiral plate within it on the wall and keeping certain intervals ground disposing with peristome under this cylinder lower opening portion.
The 2nd invention is according to above-mentioned the 1st the described closed natural water area refining plant of invention, it is characterized in that, described cylinder be one all or upper portion be contraction-like gradually cylinder.
The 3rd invention is according to the 1st or the 2nd the described closed natural water area refining plant of invention, it is characterized in that described spiral plate has many.
The 4th invention is according to any closed natural water area refining plant of being recorded and narrated in the 1st to the 3rd invention, it is characterized in that, is provided with the support column of spiral plate on the central shaft within the described cylinder.
The 5th invention is according to any described closed natural water area refining plant in the 1st to the 4th invention, it is characterized in that the bore of the lower opening portion of described cylinder is diminishing.
The 6th invention is according to any described closed natural water area refining plant in the 1st to the 5th invention, it is characterized in that the spiral plate that is fixed on the cylinder inwall has many, and its lead angle is 0.7~1.3.
More than every invention have following some effect:
The 1st, the aerating apparatus among the present invention is compared with the aerating apparatus in the past the spraying mode, and its pressure-losses is little, and the dispensing amount of dispensing bubble significantly improves in flowing water.
The 2nd, the mean diameter of the tiny bubble that aerating apparatus produced among the present invention can be as small as below hundreds of microns, therefore, the contact area of water such as oxidizing gas bubble and lake is increased to 10~100 times than mode in the past, the residence time of bubble can be brought up to 10~100 times, thereby has improved the meltage of oxygen significantly.
The 3rd, owing to adopted the cylinder that is contraction-like gradually, thus accelerated the flow velocity of rising gas-liquid two-phase flow, thereby can in closed natural water area, form powerful and stable cycling stream.And again owing in contraction-like gradually cylinder, there not being other thrust to exist, so almost there is not the pressure-losses.
The 4th, collide mutually with high speed rotating blade or thrust and carry out the mode of aeration by current, exist the problem of destruction tiny organism, but the problems referred to above can take place in the present invention hardly.
The 5th, because the bore of the lower openings portion of cylinder is diminishing, the described air lift effect of following gas to rise further improves, formation cycling stream in lake etc., prevent that from there is sediment alluvial precipitation in its deep, thereby realize carrying out purifying treatment by aeration.
The 6th, because the air bolus that sprays from the air delivery pipe that is located at the below is to be dispersed into tiny bubble the process that rises in cylinder, so aerating apparatus can produce the spray orifice obstruction hardly.
Below in conjunction with accompanying drawing several embodiments of the present invention are illustrated:
Fig. 1 is the closed natural water area refining plant that has a rotary aerating apparatus of the embodiment of the invention one-piece construction synoptic diagram when being applied to the lake;
Integral construction schematic plan view when the closed natural water area refining plant that Fig. 2 has a rotary aerating apparatus of the present invention is applied to mixed pond, water purification field;
Fig. 3 is partly cut-away's oblique drawing of cylinder of the rotary aerating apparatus of the embodiment of the invention;
Fig. 4 is partly cut-away's oblique drawing of the rotary aerating apparatus of the embodiment of the invention;
Fig. 5 (a) and (b) are respectively the orthographic plan and the longitudinal sections of the rotary aerating apparatus of the embodiment of the invention;
Fig. 6 be in the past single tube aeration type device and the distribution plan of the diameter of the bubble that aerating apparatus took place in the embodiment of the invention and bubble generation rate etc.
Fig. 1 is the closed natural water area refining plant that the has a rotary aerating apparatus of the present invention one-piece construction synoptic diagram when being applied to the lake.
Among the figure, the 65th, air delivery pipe, the 6th, the rotary aerating apparatus that the present invention adopts, the 1st, water such as lake, the 3rd, gas blower or air compressor.
In the drawings, the air that will be used to purify from the end of the air delivery pipe 65 of closed natural water area is applied among the closed natural water area 1 through rotary aerating apparatus 6.
In the inside of rotary aerating apparatus 6, the gas of rising and the air lift effect of following this ascending gas drive the water of closed natural water area and rise, and make bubble become tiny in this process, and finish gas-liquid and upgrade in instantaneous time.Then, inside is provided with the cylinder of spiral plate because the air-flow mixed flow is flowed through, and forms powerful cycling stream in the waters, and therefore, micro-bubble is transported to the deep layer of closed natural water area, and wherein a part can also arrive the lower openings of rotation aerating apparatus.
Said process is carried out again and again, and the oxygen dissolution amount of water such as lake 1 just increases, and then makes the anaerobic water body diffusion of waters bottom, makes the water because of the high contaminated lake of nutritive ingredient etc. be purified, regenerate thus.
In above-mentioned closed natural water area refining plant, the aerating apparatus that is adopted is shown in each figure below Fig. 3, used internal fixation the cylinder of spiral plate, therefore, the a large amount of energy that need because of the pressure-losses in the time of at first can avoiding in the past using the method for diffuser, secondly, because it utilizes shear strength to make gas-liquid become tiny, so can not resemble to use and produce air pocket the diffuser, but produce the extremely little two kind bubbles bigger of diameter with diameter, so just enlarged the contact area of bubble and lake water, gas dissolving is improved in the velocity sag of water, its result descends the COD of water such as lake and the content of BOD.
Fig. 2 is the integral construction schematic plan view of closed natural water area refining plant of the present invention when being applied to the sweeping field mixing pit.
Fig. 2 has shown the part of sweeping field mixing pit, in the pond, purify waste water for obtaining, need at inlet 2 ' locate in the water that enters the closed natural water area that purifies water channel 2, to sneak into activity charcoal powder etc., but, cause the requirement of gac etc. to increase because the powdered carbon of sneaking into etc. are deposited in the water channel.Such as when closed natural water area with the flow velocity of 7m/ second by purifying in the water channel, all sedimentations of nearly all gac of sneaking in the long water channel of 70m, this example is extremely representational.
At this moment, be located at several places of water channel 2 if rotary aerating apparatus 6 of the present invention is being inclined upwardly, and carry by valve 4 with gas blower or air compressor 3 to them and to purify air, activity charcoal powder will be attached to the downstream that is transported to water channel on the micro-bubble so, can prevent that gac is deposited to the bottom, turning of water channel simultaneously again.
Fig. 3 is partly cut-away's oblique drawing of the cylinder of the rotary aerating apparatus in the closed natural water area refining plant of the embodiment of the invention.
Among the figure, the 60th, (resinous) cylinder, the 61st, spiral plate, the 62nd, spiral plate support column, the 63rd, the gas-liquid introduction part that its lower opening portion has been dwindled.
Fig. 4 is partly cut-away's oblique drawing of the rotary aerating apparatus in the closed natural water area refining plant of the embodiment of the invention, and Fig. 5 (a) and (b) are respectively its orthographic plan and longitudinal section.
At this, gas (normally air) discharges mouth 66 to cylinder 60 air feed that are installed in the rotary aerating apparatus on the support 64 by air shooter 65 supplies by air.
In addition, support 64 is fixed up with gas-liquid introduction part 63 and the powerful caking agent of air shooter 65 usefulness etc. or with welding, and they are mounted usefulness " U " font hoop 68 and are fixed on the aerating apparatus installation pallet 67 then.
In same figure, gas is pressed in the arrow direction indication inflow gas transfer lime 65, and is applied in the closed natural water area in air dispensing mouthful 66 forms of sentencing air bolus.This air bolus is imported in the gas-liquid introduction part 63 in the process that rises by buoyancy, and then along spiral plate 61 increase rotation when rising, form shear strength simultaneously and between the water of the intravital closed natural water area that is rotating of cylinder, therefore become micro-bubble.In this example, spiral plate 61 has been installed 4 altogether with 90 ° of intervals, and lead angle is 1.0.Usually lead angle is advisable with about 0.7~1.3.
Then, the gas-liquid two-phase flow that contains the micro-bubble of generation has further been accelerated the speed that rises in diminishing cylinder 60 ' inside, and in the closed natural cylinder, formed a powerful and stable cycling stream continuously, micro-bubble is transported to the deep layer of cylinder.
Fig. 6 be in the past single tube aeration type aeration device and the distribution plan of the diameter of the bubble that aerating apparatus took place in the embodiment of the invention and bubble generation rate etc.Both condition determinations are as follows:
Experimental tank (1660mm * 520mm * the 1860mm of L * B * H)
The depth of water (D) 1600mm
Air capacity (QA) 130(l/min)
(depth of water) 930mm locates
(width) 80mm
(distance of distance center) 560mm
Aerating apparatus of the present invention, setting in closed natural water area is one group with 3~5 particularly to set a plurality of being advisable, and is the interval with suitable distance, being advisable in the bottom center and the both sides that are provided in lake etc., can form powerful and stable cycling stream like this in waters such as lake.
The effect of invention is described as follows:
As above embodiment recorded and narrated, the present invention can reach the effect of many excellences, and was specific as follows:
1. aerating apparatus of the present invention is compared with the aerating apparatus of in the past spraying formula, and the pressure-losses reduces, and the bubble generation rate in closed natural water area has improved significantly.
2. in spraying mode in the past, though can be little of in micron making with the aperture of the irregular perforated tube of making such as industrial ceramics, but the diameter of the bubble of Fa Shenging on average will reach several millimeter thus, and the mean diameter of the micro-bubble that aerating apparatus of the present invention produced may diminish to hundreds of μ m to tens of μ m.This just can enlarge the contact area of the bubble of the water in lake etc. and oxygen rich gas etc. widely, thereby improves the oxygen dissolution amount in the water such as lake greatly.
3. owing to adopted the cylinder that is contraction-like gradually,, can in closed natural water area, form powerful and stable cycling stream so improved the rotation upflow velocity of rising gas-liquid two-phase flow.At this moment, the intravital pressure-losses of contraction-like gradually cylinder does not almost have.
4. particularly inwardly shrinking, so just can improve the air lift effect of following gas to rise, thereby near the sedimentation dregs water-bed in the closed natural water area are being rolled, preventing near water-bed corruption owing to cylinder lower openings portion.
5. in the past by carrying out the mode of aeration, exist the problem of destroying tiny organism, but there is not this type of problem fully in the present invention with the collision of the blade of high speed rotating or thrust.
6. rotary aerating apparatus of the present invention becomes tiny bubble from its air dispensing mouthful air bolus that sprays uphill process, therefore the pore phenomenon of blocking of aerating apparatus can not take place.

Claims (6)

1, a kind of refining plant of closed natural water area, it is characterized in that, this kind refining plant is installed in the bottom of closed natural water area with rotary aerating apparatus, and described rotary aerating apparatus comprises: the gas dispensing mouth of fixing the cylinder of spiral plate within it on the wall and keeping certain intervals ground being provided with peristome under this cylinder lower opening portion.
2, closed natural water area refining plant according to claim 1 is characterized in that, described cylinder be one all or upper portion be contraction-like gradually cylinder.
3, closed natural water area refining plant according to claim 1 and 2 is characterized in that, described spiral plate has many.
4, according to any described closed natural water area refining plant in the claim 1 to 3, it is characterized in that, on the central shaft of described cylinder, be provided with the support column of spiral plate.
5, according to any described closed natural water area refining plant in the claim 1 to 4, it is characterized in that the bore of the lower opening portion of described cylinder is diminishing.
6, according to any described closed natural water area refining plant in the claim 1 to 5, it is characterized in that the spiral plate that is fixed on the cylinder inwall has many, its lead angle is 0.7~1.3.
CN92113369A 1991-11-27 1992-11-20 The refining plant of closed natural water area Pending CN1072662A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP335914/91 1991-11-27
JP33591491A JPH05146796A (en) 1991-11-27 1991-11-27 Device for purifying closed natural water area

Publications (1)

Publication Number Publication Date
CN1072662A true CN1072662A (en) 1993-06-02

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Application Number Title Priority Date Filing Date
CN92113369A Pending CN1072662A (en) 1991-11-27 1992-11-20 The refining plant of closed natural water area

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JP (1) JPH05146796A (en)
KR (1) KR930009931A (en)
CN (1) CN1072662A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101037276B (en) * 2007-03-30 2010-05-19 西安建筑科技大学 Apparatus for improving aerating reinforced active carbon adsorption water source quality
CN105566016A (en) * 2016-02-25 2016-05-11 中国葛洲坝集团易普力股份有限公司 Mechanical foaming device for medium-high temperature emulsion explosives
CN110510819A (en) * 2019-09-02 2019-11-29 深圳市前海万绿源环保科技有限公司 A kind of sewage gas explosion ball treatment process

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030025596A (en) * 2001-09-21 2003-03-29 김대봉 An underwater interception way make use of an air bubble and equipment
WO2007111752A2 (en) 2005-12-22 2007-10-04 U.S. Government As Represented By The Secretary Of The U.S. Army Modular prosthetic foot
JP5356182B2 (en) * 2009-11-04 2013-12-04 独立行政法人水資源機構 Submerged combined aeration equipment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101037276B (en) * 2007-03-30 2010-05-19 西安建筑科技大学 Apparatus for improving aerating reinforced active carbon adsorption water source quality
CN105566016A (en) * 2016-02-25 2016-05-11 中国葛洲坝集团易普力股份有限公司 Mechanical foaming device for medium-high temperature emulsion explosives
CN110510819A (en) * 2019-09-02 2019-11-29 深圳市前海万绿源环保科技有限公司 A kind of sewage gas explosion ball treatment process

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Publication number Publication date
JPH05146796A (en) 1993-06-15
KR930009931A (en) 1993-06-21

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C01 Deemed withdrawal of patent application (patent law 1993)
WD01 Invention patent application deemed withdrawn after publication