CN104803431B - Natural energy is utilized to control the device of seawater invasion - Google Patents
Natural energy is utilized to control the device of seawater invasion Download PDFInfo
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- CN104803431B CN104803431B CN201510170744.2A CN201510170744A CN104803431B CN 104803431 B CN104803431 B CN 104803431B CN 201510170744 A CN201510170744 A CN 201510170744A CN 104803431 B CN104803431 B CN 104803431B
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- water
- sea water
- desalination apparatus
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/138—Water desalination using renewable energy
- Y02A20/141—Wind power
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/138—Water desalination using renewable energy
- Y02A20/142—Solar thermal; Photovoltaics
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/208—Off-grid powered water treatment
- Y02A20/212—Solar-powered wastewater sewage treatment, e.g. spray evaporation
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention relates to solar seawater desalination field, for providing a kind of new equipment controlling seawater invasion, it can effectively utilize abundance natural energy, for a long time sea water desalinated and feed water-bearing layer, to surrounding enviroment pollute little, Non-energy-consumption, engineering easily realize, have the very strong suitability.For this, the present invention adopts the technical scheme that, natural energy is utilized to control the device of seawater invasion, including desalinating the defeated moving device in water source and coastal unconfined aquifer water-retention infiltration three parts of ditch under floatation type solar energy sea water desalination apparatus, wind-force effect, floatation type solar energy sea water desalination apparatus includes cold plate, solar thermal collector, empty end dust-collecting bucket, condensation water collection equipment and rubber water wing, structure is lower open mouth formula, empty end dust-collecting bucket directly contacts with sea water, it is main sea water intake tunnel, and plays water quality exchanges, drain the effect of filtering residue.Present invention is mainly applied to solar seawater desalination.
Description
Technical field
The present invention relates to solar seawater desalination field, and the prophylactico-therapeutic measures of seawater invasion and method.Specifically, relate to the use of natural energy and control the device of seawater invasion.
Background technology
Seawater invasion is a kind of special underground water pollution form; it causes owing to artificial exhaustive exploitation subsoil water causes seawater and freshwater balance to destroy; not only can increase water salinity so that it is exceed the standard of drinking water and irrigation water, but also understand the development and utilization of crisis coastal unconfined aquifer in future.At present, the whole world has had up to a hundred places of tens countries to be found that seawater invasion problem, such as Holland, Germany, Italy, the U.S., India, Japan, China etc..Seawater invasion problem brings tremendous economic to lose to coastal area, various countries, the serious sustainable development hindering economic society, has caused society's extensive concern, and each state is all actively launching the research about seawater invasion problem and preventing and treating.The prophylactico-therapeutic measures of current seawater invasion has following several, including: reduce rate of drawing water, migrate pumped well, be configured to lower curtain, natural supply, artificial enrichment and extract salt water etc..But, these methods have certain limitation, the suitability etc. of the source of such as fresh water, construction cost, energy loss and method.So in the research field of seawater invasion, still need some new methods, fresh water sources problem can be solved on the one hand, energy consumption can be reduced as far as possible on the other hand, utilize natural energy continue, cycle operation, reduce and pollute, reduce facility cost, to reach long-term, to prevent and treat seawater invasion persistently, economically purpose.
Summary of the invention
For overcoming the deficiency of technology, a kind of new equipment controlling seawater invasion is provided, it can effectively utilize abundance natural energy, for a long time sea water desalinated and feed water-bearing layer, to surrounding enviroment pollute little, Non-energy-consumption, engineering easily realize, have the very strong suitability.For this, the present invention adopts the technical scheme that, natural energy is utilized to control the device of seawater invasion, including desalinating the defeated moving device in water source and coastal unconfined aquifer water-retention infiltration three parts of ditch under floatation type solar energy sea water desalination apparatus, wind-force effect, floatation type solar energy sea water desalination apparatus includes cold plate, solar thermal collector, empty end dust-collecting bucket, condensation water collection equipment and rubber water wing, structure is lower open mouth formula, empty end dust-collecting bucket directly contacts with sea water, it is main sea water intake tunnel, and plays water quality exchanges, drain the effect of filtering residue；Rubber water wing ring is embedded in dust-collecting bucket outer wall, adopts anticorrosive property elastomeric material, and water wing is internal is hollow inflatable, plays the effect increasing sea water desalinating unit buoyancy and stability；Solar thermal collector is placed on dust-collecting bucket at the bottom of sky, with the ceiling structure that cold plate together constitutes solar energy sea water desalination apparatus, the radiant energy of the sun is converted into heat energy by solar thermal collector, the empty end dust-collecting bucket maritime interior waters of evaporation, and by cold plate, steam is carried out condensing reflux；Condensation water collection equipment is placed under solar energy sea water desalination apparatus internal condensation plate, and in funnel-form, external water conduction hose, in condensation water collection equipment, design head is higher than coastal seashore, it is ensured that water is natural water conservancy diversion under head difference effect；
Desalinate the defeated moving device in water source under wind-force effect and include delivery hose and Wind-driven water pump two parts composition, solar energy sea water desalination apparatus is connected by delivery hose with coastal seashore, in littoral ground elevation lower ground side, condensation water collection equipment head is higher than outlet head, and the fresh water reclaimed is exported by utilized head difference from solar energy sea water desalination apparatus；In the place that littoral ground elevation is higher, provide mechanical kinetic energy by Wind-driven water pump, under external force the fresh water reclaimed is derived from solar energy sea water desalination apparatus；
Water-retention infiltration ditch is arranged at littoral water-bearing layer band, connects with delivery hose outlet, for saving the water source that desalination is reclaimed, and effectively feeds phreatic aquifer by infiltration of ground surface, improves groundwater level, increases subsoil water and save and delay seawater invasion.
Wind-driven water pump is connected to form by wind turbine, standpipe, suction pump, for ensure backflow water source of fresh water stablize defeated shifting.
Compared with the prior art, the technical characterstic of the present invention and effect:
The mode that the present invention is fed by water-bearing layer fresh groundwater delays seawater invasion, and the fresh water of its supply is provided by desalinization, the problem that this mode efficiently solves fresh water sources approach.
Desalination technology of the present invention adopts solar energy heat collector evaporation sea water filter light, fresh water is by defeated moving device natural water conservancy diversion under the active force of head difference, or adopt Wind-driven water pump to provide mechanical kinetic energy water conservancy diversion in physical features district higher, the recharge of ground water oozes under adopting water-retention infiltration ditch natural, the fully utilized natural energy of whole cyclic process, pollution-free, Non-energy-consumption, sustainability is strong.
The present invention adopts the floatation type solar energy sea water desalination apparatus of lower open mouth, Inlet and outlet water and waste residue wipe-out mode simple and convenient, and the suitability is strong, and device is fixing without piling under sea, has saved substantial amounts of construction cost.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical method of the present invention, the accompanying drawing used required in implementation will be briefly described below:
Fig. 1 is that this kind controls seawater invasion method schematic diagram.
In figure:
The defeated moving device in water source is desalinated under 1-1 floatation type solar energy sea water desalination apparatus 1-2 wind-force effect
1-3 water-retention infiltration ditch 1-4 sea water
1-5 intermediate zone 1-6 fresh water
1-7 surface layer 1-8 evaporates
1-9 condensing reflux 1-10 infiltrates supply
Fig. 2 is the positive elevational schematic view of floatation type solar energy sea water desalination apparatus.
In figure:
2-1 cold plate 2-2 solar thermal collector
Dust-collecting bucket 2-4 condensation water collection equipment at the bottom of 2-3 sky
2-5 rubber water wing
Fig. 3 is that under the method, engineering and device plane lay schematic diagram.
In figure, 1-1 to 1-6 and Fig. 1 label is consistent, and other are:
1-11 installs the direct outlet of outlet 1-12 of Wind-driven water pump
Detailed description of the invention
A kind of method utilizing natural energy to control seawater invasion, including desalinating the defeated moving device in water source and coastal unconfined aquifer water-retention infiltration three parts of ditch under floatation type solar energy sea water desalination apparatus, wind-force effect.
Wherein, floatation type solar energy sea water desalination apparatus includes cold plate, solar thermal collector, empty end dust-collecting bucket, condensation water collection equipment and rubber water wing.Device is lower open mouth formula, floats on sea, utilizes solar energy heating evaporation sea water filter light, to solve fresh water sources problem.Wherein, empty end dust-collecting bucket directly contacts with sea water, is main sea water intake tunnel, and plays water quality exchanges, drains the effect of filtering residue, adopt in theory heatproof, thermal insulation, anti-seawater corrosion material be made as suitable；Rubber water wing ring is embedded in dust-collecting bucket outer wall, adopts anticorrosive property elastomeric material, and water wing is internal is hollow inflatable, plays the effect increasing sea water desalinating unit buoyancy and stability；Solar thermal collector is placed on dust-collecting bucket at the bottom of sky, with the ceiling structure that cold plate together constitutes solar energy sea water desalination apparatus.Solar thermal collector adopts the solar energy heating plate technique of existing maturation, and the radiant energy of the sun is converted into heat energy, evaporates dust-collecting bucket maritime interior waters, and by cold plate, steam is carried out condensing reflux；Condensation water collection equipment is placed under solar energy sea water desalination apparatus internal condensation plate, in funnel-form, and external water conduction hose, design head in condensation water collection equipment should be kept in theory to be higher than coastal seashore, it is ensured that water can natural water conservancy diversion under head difference effect.
Desalinate the defeated moving device in water source under wind-force effect and include delivery hose and Wind-driven water pump two parts composition.Solar energy sea water desalination apparatus is connected by delivery hose with coastal seashore, and in littoral ground elevation lower ground side, condensation water collection equipment head is higher than outlet head, and the fresh water reclaimed is exported by utilized head difference from solar energy sea water desalination apparatus；In the place that littoral ground elevation is higher, owing to condensation water collection equipment head does not reach water outlet height, head difference is unfavourable balance, need to provide mechanical kinetic energy by Wind-driven water pump, is derived by the fresh water reclaimed under external force from solar energy sea water desalination apparatus.Wind-driven water pump adopt existing forming technique, wind turbine, standpipe, suction pump connect to form, it is reliable, pollution-free, and cost is low, Non-energy-consumption, it is ensured that backflow water source of fresh water stablize defeated shifting.
Water-retention infiltration ditch is arranged at littoral water-bearing layer band, connects with delivery hose outlet, for saving the water source that desalination is reclaimed, and effectively feeds phreatic aquifer by infiltration of ground surface, improves groundwater level, increases subsoil water and save and delay seawater invasion.
Below in conjunction with relevant drawings, the technical method of the present invention is clearly and completely described.
A kind of method utilizing natural energy to control seawater invasion is as shown in Figure 1, Figure 3.Method adopts the desalination defeated moving device 1-2 in water source under floatation type solar energy sea water desalination apparatus 1-1, wind-force effect, coastal unconfined aquifer water-retention infiltration ditch 1-3 to set up contacting between sea water 1-4 and fresh groundwater 1-6, by the supply offer water source desalinized seawater as coastal unconfined aquifer fresh groundwater, and further by feeding raising groundwater level, increase subsoil water savings, delay seawater invasion.
Desalting process realizes (device details such as Fig. 2) by solar energy sea water desalination apparatus 1-1.Floatation type solar energy sea water desalination apparatus 1-1 is arranged at coastal sea level 1-4, under inner and outer air pressure and rubber water wing 2-5 effect, stably floats on sea level.Sea water is entered from floatation type solar energy sea water desalination apparatus 1-1 lower open mouth by empty end dust-collecting bucket 2-5, under solar thermal collector 2-2 thermal-arrest effect, by thermal evaporation 1-8, form steam, finally it is converted into freshwater resources at cold plate 2-1 place, top condensing reflux 1-9, and be collected in condensation water collection equipment 2-4.Day, accumulation solar radiation energy HR was in 9.532-26.391MJ/m2d situation, and empirical equation (1) can be adopted to carry out aquifer yield estimation.
P=0.8258+0.10453HR-0.00002HR2(1)
In formula: P is unit daylighting area aquifer yield kg/m2d；
HR is accumulation solar radiation energy MJ/m2d；
Aquifer yield carries out empirical estimating according to Bohai Sea Area solar radiation herein, about every square meter water yield per day 2.62kg.The scale of solar energy sea water desalination apparatus 1-1 and quantity, according to seawater invasion and littoral water-bearing layer practical situation, should carry out Reasonable adjustment and laying.
The water source of fresh water that floatation type solar energy sea water desalination apparatus 1-1 leaches, imports water-retention infiltration ditch by desalinating the defeated moving device 1-2 in water source under wind-force effect.In littoral elevation lower ground side, delivery hose outlet 1-12 head, lower than condensation water collection equipment 2-4 head, now by Wind-driven water pump, only need not can carry out the defeated shifting of fresh water under the effect of head difference；And in the higher place of littoral elevation, delivery hose outlet 1-11 head is lower than condensation water collection equipment 2-4 head, now head difference is unfavourable balance, wind energy need to be utilized to drive fan rotating vane to rotate by Wind-driven water pump to circle, and be changed into the straight reciprocating motion of piston by drive mechanism and promote pump working, thus providing mechanical kinetic energy for defeated shifting of fresh water, under external force the fresh water reclaimed is derived from solar energy sea water desalination apparatus 1-1.
Water-retention infiltration ditch 1-3 should be arranged at coastwise nearer surface layer 1-7, being parallel to coastline to become band, reservoir capacity and project scale are depending on fresh water yield, unsuitable excessive, porous pavement can be laid, to meet view requirement and current facility on infiltration ditch 1-3 upper strata.The water source of fresh water being transported in water-retention infiltration ditch feeds water-bearing layer by infiltration of ground surface 1-10, improves subsoil water 1-6 water level, increases subsoil water savings amount and delay seawater invasion.
This method engineering and device plane are laid as shown in Figure 3.Floatation type solar energy sea water desalination apparatus 1-1 is spaced along the coastline, and spacing size and laying quantity are determined by circumstances according to aquifer yield and seawater invasion present situation；Wind-driven water pump, according to project scale and orographic condition, on-demand adds.By the technical combinations mode that this method provides, it is established that recycling of sea, coastal area Lu Xianshui-fresh water.The fully utilized natural energy of this method, reliable, pollution-free, Non-energy-consumption, construction cost are cheap, it is possible to persistent loop works, it is adaptable to the chronicity prevention and control of seawater invasion and improvement.
Claims (2)
1. one kind utilizes the device that natural energy controls seawater invasion, it is characterized in that, including desalinating the defeated moving device in water source and coastal unconfined aquifer water-retention infiltration three parts of ditch under floatation type solar energy sea water desalination apparatus, wind-force effect, floatation type solar energy sea water desalination apparatus includes cold plate, solar thermal collector, empty end dust-collecting bucket, condensation water collection equipment and rubber water wing, structure is lower open mouth formula, empty end dust-collecting bucket directly contacts with sea water, it is main sea water intake tunnel, and plays water quality exchanges, drain the effect of filtering residue；Rubber water wing ring is embedded in dust-collecting bucket outer wall, adopts anticorrosive property elastomeric material, and water wing is internal is hollow inflatable, plays the effect increasing sea water desalinating unit buoyancy and stability；Solar thermal collector is placed on dust-collecting bucket at the bottom of sky, with the ceiling structure that cold plate together constitutes solar energy sea water desalination apparatus, the radiant energy of the sun is converted into heat energy by solar thermal collector, the empty end dust-collecting bucket maritime interior waters of evaporation, and carries out condensing recovery to steam by cold plate；Condensation water collection equipment is placed under solar energy sea water desalination apparatus internal condensation plate, and in funnel-form, external water conduction hose, in condensation water collection equipment, design head is higher than coastal seashore, it is ensured that water is natural water conservancy diversion under head difference effect；
Desalinate the defeated moving device in water source under wind-force effect and include delivery hose and Wind-driven water pump two parts composition, solar energy sea water desalination apparatus is connected by delivery hose with coastal seashore, in littoral ground elevation lower ground side, condensed water captation head is higher than outlet head, and the fresh water reclaimed is exported by utilized head difference from solar energy sea water desalination apparatus；In the place that littoral ground elevation is higher, provide mechanical kinetic energy by Wind-driven water pump, under external force the fresh water reclaimed is derived from solar energy sea water desalination apparatus；
Water-retention infiltration ditch is arranged at littoral water-bearing layer band, connects with delivery hose outlet, for saving the water source that desalination is reclaimed, and effectively feeds phreatic aquifer by infiltration of ground surface, improves groundwater level, increases subsoil water and save and delay seawater invasion.
2. utilize as claimed in claim 1 natural energy control seawater invasion device, it is characterized in that, Wind-driven water pump is connected to form by wind turbine, standpipe, suction pump, for ensure backflow water source of fresh water stablize defeated shifting.
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| CN201510170744.2A CN104803431B (en) | 2015-04-10 | 2015-04-10 | Natural energy is utilized to control the device of seawater invasion |
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| CN106145229A (en) * | 2016-07-29 | 2016-11-23 | 天津大学 | A kind of solar and superficial layer saline groundwater desalting plant in situ |
| CN108996616A (en) * | 2018-09-26 | 2018-12-14 | 水利部交通运输部国家能源局南京水利科学研究院 | A method of invasion seawater prevents and treats system and its protection and utilizes seawater |
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