CN102167410A - Method for promoting water body flow as well as aerating and oxygenating by utilizing natural-wind-powered water pumping - Google Patents
Method for promoting water body flow as well as aerating and oxygenating by utilizing natural-wind-powered water pumping Download PDFInfo
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- CN102167410A CN102167410A CN201110052415XA CN201110052415A CN102167410A CN 102167410 A CN102167410 A CN 102167410A CN 201110052415X A CN201110052415X A CN 201110052415XA CN 201110052415 A CN201110052415 A CN 201110052415A CN 102167410 A CN102167410 A CN 102167410A
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- 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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- 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
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/33—Wastewater or sewage treatment systems using renewable energies using wind energy
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Abstract
The invention relates to a method for promoting water body flow as well as aerating and oxygenating by utilizing natural-wind-powered water pumping. The natural wind energy is converted into mechanical energy for water pumping by adopting a wind-powered water pumping device with low start wind speed, and the mechanical energy acts to a receiving water body in different water fall ways after fall is formed, and thus the health state of a water ecosystem is improved. By means of the method, not only a goal of waterpower circulation and water body flow in the water body or among water bodies can be realized by simple earth surface water body pumping transmission, but also a goal of aeration and oxygenation can be realized by lifting different levels of natural water fall or fountain fall of the water body, and therefore, the organic coupling of a waterpower circulation technology and a water fall aeration and oxygenation technology can be realized, and the greatest advantages of a coupling technology can be exerted under the condition of least energy consumption. The method disclosed by the invention introduces a wind-powered water pumping technology from the traditional field to the water environment protection field and has the characteristics of wide application range, long operation time, low operation cost, simpleness in operation and management, strong technology transportability, good scenery effect, good comprehensive benefits, and the like.
Description
Technical field
The present invention relates to water surrounding improvement and Ecological Recovery of Water and clean energy and utilize the field, specifically a kind ofly utilize the natural wind energy water lift to promote water body to flow and the method for aeration aerating.
Background technology
Surface water body sealing unhurried current water pollution especially static or mobile difference is on the rise, owing to import the total amount of pollutant considerably beyond water environment capacity, many middle and small river water pollutions are serious, the aggravation of water body in lake eutrophication, and characteristics such as city appearance water body generally has little, the easy pollution of water surface area, water environment capacity is little, water body self-purification ability is low, water quality safety and aquatic attitude health are difficult to effectively be ensured.Artificial aeration's reoxygenation Study on Technology has been carried out more than 40 year abroad, in purification of water quality research, occupy critical positions, aerator is installed in Fulda river, Teltow river and Emseher river and near the river course the U.S. Mississippi Miunesoda harbour in Germany, obtain tangible regulation effect, controlled the generation of water body peculiar smell and the excessive breeding of algae effectively.For meeting the Asian Games in 1986 and the 1988 summer Olympic Games, entangle the speedboat zone in bay, rivers mouth Pusan at Korea S's water 9 aerating apparatus has been installed, studies show that, aeration can improve the water quality that water is entangled the outspoken ship of rivers zone effectively, can increase DO, cuts down COD, improves transparency, eliminate peculiar smell.The watercourse aeration technology is used less in China, only in Qinghe, Pekinese, the river course aeration process was adopted in sections such as the last Australia pool in the peach blossom small stream in Chongqing, Shanghai.
The water body aeration is the mass transfer process of the alternate a kind of complexity of gas-liquid, and the mode of aeration and equipment select to depend on many-sided factor: the requirement of polluted-water water correction (as eliminate black smelly, improve water quality, ecology recovering etc.), external conditions (comprising the depth of water, flow velocity, river cross-section shape, surrounding enviroment condition etc.), function of water body (as shipping function, landscape function etc.), source of pollution feature (as the chronic pollution load, impact pollution load etc.) etc.Aeration mode commonly used has blast aeration, mechanical aeration, jet-flow aeration and foamless oxygen-supplying etc., practical application water body oxygen replenishing equipment can be divided into pure oxygen aeration system and air aeration system, specifically comprise: gas blower-micropore gas distribution pipe aerating system, pure oxygen-microporous pipe aerating system, pure oxygen-flow-mixing oxygen-enriching system, the air-breathing pulling flow type aerator of impeller, jet-flow aeration equipment, paddle aerator etc. under water, the application of oxygen replenishing equipment generally has following two kinds of forms in the polluted-water watercourse aeration engineering: fixed oxygen-charging station and portable oxygenation platform.Above-mentioned various artificial aeration's oxygen replenishing equipment relative merits are obvious, its advantage show oxygen-transfer efficiency than higher, oxidation effect is all relatively good, but that the ubiquity problem is power consumption is big, facility investment than higher, technical requirements than higher, management maintenance more complicated.
The drop water aeration system is another form of artificial aeration, utilize the water in dropping process, to contact and realize reoxygenation with airborne oxygen, have simple in structure, cost is low, energy consumption is little, the advantage of aeration effect stability, in the drop water aeration system, oxygen shifts in water and occurs in the following process: (1) water falls in air, contacts with oxygen; (2) water of Xia Luoing runs into obstacle, and the variation of fluidised form takes place, and causes carrying and wrapped folder air; (3) with after the water surface contacts, make water body produce disturbance, improve the air reaeration ability.Common drop water aeration system is sluice structure weir commonly used in the water conservancy projects, lock, dam etc., also can realize by power water pumping systems such as fountains.The problem that weir, lock, dam drop water aeration system exist comprise construction investment than higher, change the habitat, river, be difficult in the lake, realize etc., so should not be with aeration aerating as leading function; The shortcoming of power water lift drop water aeration systems such as fountain mainly is that power consumption is big.So reduce power consumption, improve oxygen-transfer efficiency, stablize the prerequisite that oxidation effect is an artificial aeration system wide popularization and application.
Artificial waterpower circulating technology is a kind of effective engineering measure that improves river Lake Water Body quality in recent years, utilize engineering measure, water transfer improves hydrodynamic condition, and concrete operations are under the prerequisite of flood control safety, by the science scheduling of hydro project, start lift pump (station), transfer the urban rivers and lakes water body of living, increase the water yield, accelerate circulation, strengthen dilution and self-purification capacity, utilize the hydrodynamiccharacteristics in lake, river to carry out the water resources scheduling and utilize the self-purification function in lake, river itself and biological purification function to improve water quality.Artificial waterpower circulation is according to the ydrodynamics ultimate principle, applies power for the processing water body, makes water body by quiet change, realizes that it flows slowly and uniformly; The water body exchange and the dilution that form by flowing make the extracorporeal treatment purification of water become possibility; The Surface Renewal that is caused that flows provides condition for accelerating air reaeration, helps strengthening the self-purification capacity of water body, and the pollution substance oxidation is accelerated, and improves hydrobiological living environment.
Drawing Jiang Jihu is exactly a kind of specific form of artificial waterpower round-robin, and is conducting a research and promotion and implementation.In State Council's TAIHU LAKE prevention and cure of pollution third session in September calendar year 2001, former Vice Premier of the State Council's comrade Wen Jiabao just proposed " with moving control quiet, with release clearly dirt, withered with rich benefit, improve water quality " indication.Taihu Lake basin management board just carried out in January, 2002 draws Jiang Jitai water transfer test, has implemented to draw the Jiang Jitai water diversion project then in the low water season of 2002 and 2003; The diversion works that Qiantang River water is gone into the West Lake has been implemented to draw in the West Lake, the Hangzhou same period, and Jiang Jihu engineering etc. has also been implemented to draw in the XuanWu Lake in Nanjing; Wuhan East Lake, Chaohu, Anhui have successively been carried out and have been drawn Jiang Jihu water transfer experimental study in recent years, and relevant at present research just in force.
But the waterpower circulating technology is theoretical not perfect, mainly emphasize at present turbulent flow dilution, the effect of bio-oxidation in treating processes, and other as the passivation bed mud, slowing down bed mud, to discharge the intreractive theory research of aspects such as phosphorus not enough, and artificial waterpower circulating technology oxygen-transfer efficiency is low, the bio-oxidation weak effect.If artificial waterpower circulating technology and drop water aeration technology are organically combined, on the one hand, the mobile water surface of impelling that pump circulation causes is upgraded, increased turbulent fluctuation, thereby the transmission of oxygen and transmission and the diffusion that diffusion helps oxygen have been improved, promote water surface reoxygenation, improved drop water aeration oxygenation efficient; On the other hand, the water body through behind the drop reoxygenation constantly exchanges, dilutes under the waterpower Circulation, and water body self-purification ability is improved.Improve the research of water body quality in conjunction with waterpower circulation and watercourse aeration technology, rarely has report at present abroad, domestic have adopt drop water aeration, sluice earial drainage, running water spray pond to combine to carry out oxygenation and in viscous flow waters, mountain area according to the river course along the rubber dam drop oxygenation of Cheng Tedian design step and pump lock engineering example in conjunction with water transfer, for eliminating city river water quality peculiar smell, worsening respond wellly, almost there is not secondary pollution.But the investment that is applied to gate dam construction, operational management is still than higher, and the construction meeting of dam brings very big influence to the habitat, river, and so waterpower circulation and watercourse aeration technology also are difficult to build the water body in lake of dam.
Clean energy--the modal dual mode of Wind Power Utilization is generating and water lift, though China's water pumping of the wind-force has long history, and be used for water lift operations such as field irrigation, preparing salt by working up seawater, aquaculture, beach sour jujube transformation, human livestock drinking water, grassland improvement, favorable economic benefit and social effect are arranged.At present on the range of product of water pumping of the wind-force unit, China has basically formed big flowing water unit of southern type low lift and the high-lift low discharge water pumping of the wind-force of northern type unit two big series, the wind-driven water pump that tens kinds of product types are arranged approximately is mainly used in ground such as Fujian, Jiangsu, Tianjin, the Inner Mongol, Hebei, Shandong.China's southeastern coastal areas wind energy resources is abundanter, and most of regional annual mean wind speed is about 4m/s.For satisfying low lift and large flow rate water lift operation needs such as field irrigation, aquaculture and saltern salt manufacturing, low lift water pumping of the wind-force device is developed application, is used to extract surface water, and its lift is generally 0.5～3.0m, and flow is 50～100 m
3/ h.Landlocked wind energy resources is regional preferably in NORTH CHINA, as average annual wind speed 4～6m/s in ground such as the Inner Mongol, Gansu, Qinghai, 3～20m/s wind speed year accumulative total 4000～5000h, this type of area mostly is the pastoral area, grassland greatly, population decentralization, difficult energising net, therefore, high-lift low discharge deep-well water pumping of the wind-force unit is utilized for the herdsman and livestock provides drinking-water or small area grassland to irrigate, has tangible social effect for the life, the working condition that improve local herdsman, its lift is generally between 10～146 m, and flow is 0.5～5 m
3/ h.
China be fit to water pumping of the wind-force regional vast, operation is numerous, so to develop water pumping of the wind-force be one of effective way that remedies current rural area, pastoral area energy deficiency.But the prerequisite of water pumping of the wind-force is wind energy resources and water resources, China's southeastern coast, the east area of the Liao River, coextensive with eastern and southern Liaoning Province and areas such as the Shandong Peninsula and marine island, and wind energy resources is abundant, and earth surface water source is also abundant, is the best water pumping of the wind-force district of China based on east, the extracting face of land; Area, the northern river valley in Inner Mongol, Qinghai, Gansu and Xinjiang, wind energy resources is abundant, and underground water source is also abundant, is the preferable water pumping of the wind-force district of China based on extracting underground water.Wind energy resources should possess following condition during the addressing of water pumping of the wind-force engineering: annual mean wind speed frequently should be greater than 40% etc., so wind speed is the limiting factor of water pumping of the wind-force engineering application greater than the wind of 3000h, prevailing wind direction more than or equal to 3.5m/s, year effective wind speed hours.The startup wind speed of wind-driven water pump is also most important in addition, and generally speaking, the startup of wind-driven water pump needs force 3 wind (wind speed is 4m/s), and most of product needed starts when wind speed 2.5-3 m/s.
From the angle of environment protection and resource rational utilization, the water pumping of the wind-force technology has bigger potential market and vast potential for future development in China, but the water pumping of the wind-force industry development exists problems such as number of applications is few, popularization is made slow progress at present.
Summary of the invention
Development trend at above-mentioned field, the clean energy that is applied to river lake water environmental improvement and Ecological Recovery of Water that the objective of the invention is to study a kind of suitable China's national situation utilizes pattern, problems such as technical solution complexity, power consumption is big, operational support is difficult, management expectancy height.
The objective of the invention is to research and develop a kind of novel wind energy of utilizing and improve the water pumping of the wind-force method of quality of water environment and hydrodynamic condition, both can promote transmission by simple surface water body realizes in the water body or the waterpower round-robin target between water body, naturally, the drop of different stage that also can be by promoting water body or the target of fountain drop realization aeration aerating, the organic coupling of waterpower circulating technology and drop water aeration oxygenation technology can be realized, and the sharpest edges of coupling technique can be under the minimum situation of power consumption, brought into play.
The present invention utilizes the natural wind energy water lift to promote water body to flow and the method for aeration aerating for a kind of, adopt the low wind speed water pumping of the wind-force equipment that starts, natural wind energy is converted into mechanical energy water lift formation drop acts on receiving water body in different drop modes afterwards, improve the state of health of aquatic ecosystem.
Described low startup wind speed is 1.6-2.0m/s.
Described water pumping of the wind-force equipment is moulding water lift windmill product.
Described water lift drop is 1.0-5.0m.
Described drop mode comprises nature drop, fountain drop, single-stage drop and multistage drop.
Described receiving water body comprises river, lake, reservoir, pond and city appearance water body.
The described state of health of improving aquatic ecosystem is for promoting water body and flow and increase dissolved oxygen in the water body.
Can form certain water landscape by suitable landscape design, under the present situation of present human aestheticly tired, in water environment treatment and Ecological Recovery of Water engineering, near second-rate water body, water pumping of the wind-force equipment has certain beautification of landscape effect to regional view.
The present invention has following advantage:
1. Application Areas is expanded, and technical functionality is strengthened.The water pumping of the wind-force technology is introduced the water environment protection field from traditional field, realize the coupling function of waterpower circulation and two technology of drop water aeration oxygenation simultaneously.
2. applied widely, long operational time.Because used water pumping of the wind-force device start wind speed is low, can apply in the relatively poor zone of wind energy resources, and the guarantee in a year is longer working time.
3. running cost is low.Need not any conventional energy resourcess such as oil, electricity, the water lift cost is extremely low, as long as the wind wheel that has wind to drive windmill rotates, just windmill can be endlessly water is pumped to the place of any needs in deep mixed well, lake, reservoir, river, the pond.
4. operational management is simple.Water pumping of the wind-force equipment is installed simple, is easy to come into operation; The level of automation height, be convenient to safeguard, only be required to be wheel casing every year and change a lubricating oil; Durable in use, easy to maintenance, under normal operation and maintenance, its work-ing life was above 30 years.
5. technology is portable strong.Both can be used for storehouse, urban river lake water body quality of water environment betterment works, also can apply on " limit, poor always, less, " and mountainous rural area; Both can be used as single technology, also can combine, used surface water body environmental improvement and restoration of the ecosystem engineering with artificial swamp or bank band technology.
6. landscape effect is fine.Water pumping of the wind-force equipment of the present invention all belongs to the landscape type product, has the higher aesthetic of landscape undoubtedly and is worth, and can effectively promote the surrounding enviroment quality.
Description of drawings
Fig. 1 promotes the floor plan synoptic diagram that water body method mobile and aeration aerating is used in certain sub-district water scenery engineering for a kind of natural wind energy water lift that utilizes;
Fig. 2 promotes the plot plan that water body method mobile and aeration aerating is used in the fish pond for a kind of natural wind energy water lift that utilizes.
Embodiment
Below by embodiment the present invention is described in further detail.
Embodiment 1:
As shown in Figure 1, sub-district, Wuhan water scenery engineering adopts water pumping of the wind-force equipment to extract river and enters artificial irrigation canals and ditches in sub-district and man-made lake, through overflowing back the water intaking river after the circulation.The water quality in water intaking river is the V class throughout the year, as the water source of sub-district water scenery engineering; The sub-district water scenery is made up of sloot and man-made lake, plants in artificial irrigation canals and ditches and the man-made lake and is implanted with emergent and floating plant, adopts ecological bank slope, the about 20000m of water surface area
2, flow path is about 2km; The design water lift height of water pumping of the wind-force equipment is 4m, and the drop of water outlet highly is 0.5m.The water scenery engineering that this is intended to build the environmental community of coordinating mutually with physical environment has originally not only realized the abundant fusion of architectural composition and water landscape, and has improved water quality.Show by nearly 1 year monitoring result, the windmill water lift enters the influent quality that sub-district landscape water body circulation back overflow effluent quality is better than the river, sometimes can reach the IV class in the artificial irrigation canals and ditches water quality of intermediary especially, the dissolved oxygen of inhalant region is apparently higher than the dissolved oxygen of water intaking river and exhalant region, and the overflow water outlet of sub-district water body is as the nourishment source water quality reaching standard in river in addition.Water pumping of the wind-force has not only been realized the water cycle of landscape water body, and has increased the dissolved oxygen of water body, has improved the self-purification capacity of water body.This water pumping of the wind-force equipment accumulated running time surpasses 3000h/a, and running cost is no more than 5000 yuan/year.
Embodiment 2:
As shown in Figure 2, fish pond, thing lake, Wuhan, the about 4500m of area
2Adopt the windmill water lift to improve the fish pond water surrounding, the water lift windmill is delivered to the other side from one side, fish pond water lift, and with the form backflow of two-stage drop, drop highly surpasses 1m, increase replenishes pool water dissolution oxygen, for preventing short stream and dead angle, be provided with a training wall simultaneously, promote the even of fishpond water body oxygen concn, finally make the fishpond water body that trickle flowing is arranged on the whole, obtain constantly replenishing of extraneous oxygen source simultaneously.Through nearly 2 years operation, the fish pond quality is significantly improved, and dead fish phenomenon significantly reduces, and the fish pond annual production increases about 15%, the corresponding lifting of fisherman's income.
About the low water pumping of the wind-force equipment that starts wind speed; iron man's windmill (Wuhan) company limited produces the comprehensive portfolio product of selling, and can have the storm automatic protection functions realizing starting less than the 1.6-2.0m/s wind speed of light breeze; maximum water lift height 400m, maximum water lift flow can reach 500m
3/ h.Producer's information can be inquired about by internet.
Claims (7)
1. one kind is utilized the natural wind energy water lift to promote water body to flow and the method for aeration aerating, it is characterized in that: adopt the low wind speed water pumping of the wind-force equipment that starts, natural wind energy is converted into mechanical energy water lift formation drop acts on receiving water body in different drop modes afterwards, improve the state of health of aquatic ecosystem.
2. according to claim 1ly utilize the natural wind energy water lift to promote water body to flow and the method for aeration aerating, it is characterized in that: described low startup wind speed is 1.6-2.0m/s.
3. according to claim 1ly utilize the natural wind energy water lift to promote water body to flow and the method for aeration aerating, it is characterized in that: described water pumping of the wind-force equipment is moulding water lift windmill product.
4. according to claim 1ly utilize the natural wind energy water lift to promote water body to flow and the method for aeration aerating, it is characterized in that: described water lift drop is 1.0-5.0m.
5. according to claim 1ly utilize the natural wind energy water lift to promote water body to flow and the method for aeration aerating, it is characterized in that: described drop mode comprises nature drop, fountain drop, single-stage drop and multistage drop.
6. according to claim 1ly utilize the natural wind energy water lift to promote water body to flow and the method for aeration aerating, it is characterized in that: described receiving water body comprises river, lake, reservoir, pond and city appearance water body.
7. according to claim 1ly utilize the natural wind energy water lift to promote water body to flow and the method for aeration aerating, it is characterized in that: the described state of health of improving aquatic ecosystem is for promoting flowing and increasing dissolved oxygen in the water body of water body.
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| CN201110052415XA CN102167410A (en) | 2011-03-04 | 2011-03-04 | Method for promoting water body flow as well as aerating and oxygenating by utilizing natural-wind-powered water pumping |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103739082A (en) * | 2014-01-21 | 2014-04-23 | 武汉理工大学 | System for purifying eutrophic water employing artificial flow aeration coupled to biological film floating bed |
| CN105036375A (en) * | 2015-08-12 | 2015-11-11 | 长江水资源保护科学研究所 | Method for driving external circulation of water to realize aeration oxygenation by utilizing natural wind energy to lift water |
| CN115828796A (en) * | 2023-02-15 | 2023-03-21 | 中国科学院地理科学与资源研究所 | Method for acquiring gas diffusion key parameters of greenhouse gas emission of river system |
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| CN2072323U (en) * | 1989-07-31 | 1991-03-06 | 徐学渊 | Portable wind energy oxygen-increasing machine |
| CN2799547Y (en) * | 2005-03-15 | 2006-07-26 | 北京新奥水科技术开发有限公司 | Pneumatic three-D water-circulating water purifying device |
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2011
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2072323U (en) * | 1989-07-31 | 1991-03-06 | 徐学渊 | Portable wind energy oxygen-increasing machine |
| CN2799547Y (en) * | 2005-03-15 | 2006-07-26 | 北京新奥水科技术开发有限公司 | Pneumatic three-D water-circulating water purifying device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103739082A (en) * | 2014-01-21 | 2014-04-23 | 武汉理工大学 | System for purifying eutrophic water employing artificial flow aeration coupled to biological film floating bed |
| CN103739082B (en) * | 2014-01-21 | 2016-01-20 | 武汉理工大学 | The system of artificial flowing aeration coupled biological film floating bed purifying eutrophication water body |
| CN105036375A (en) * | 2015-08-12 | 2015-11-11 | 长江水资源保护科学研究所 | Method for driving external circulation of water to realize aeration oxygenation by utilizing natural wind energy to lift water |
| CN115828796A (en) * | 2023-02-15 | 2023-03-21 | 中国科学院地理科学与资源研究所 | Method for acquiring gas diffusion key parameters of greenhouse gas emission of river system |
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Application publication date: 20110831 |