CN104528853A - Double-chimney embedded type solar seawater desalination system and desalination method thereof - Google Patents
Double-chimney embedded type solar seawater desalination system and desalination method thereof Download PDFInfo
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- CN104528853A CN104528853A CN201410737281.9A CN201410737281A CN104528853A CN 104528853 A CN104528853 A CN 104528853A CN 201410737281 A CN201410737281 A CN 201410737281A CN 104528853 A CN104528853 A CN 104528853A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/14—Treatment of water, waste water, or sewage by heating by distillation or evaporation using solar energy
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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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
Abstract
The invention discloses a double-chimney embedded type solar seawater desalination system and a desalination method thereof. A horizontally arranged heat collection shed is connected to an inner chimney, an inclinedly arranged linear Fresnel concentrating heat collector is in connection with an outer chimney, and the outer chimney is higher than the inner chimney. A wind turbine is disposed at the bottom of the inner chimney, a liquid distributor is arranged in the partition of the inner chimney and the outer chimney, and a condenser is disposed in the outer chimney. The horizontal heat collection shed is heated by solar energy to generate air flow, which drives the wind turbine at the bottom of the inner chimney so as to provide part of electric energy needed by the system. The linear Fresnel concentrating heat collector heats seawater to generate water vapor. The air flow in the inner chimney injects water vapor to flow to the condenser so as to be condensed into fresh water. The fresh water flows into a fresh water tank along the outer chimney wall, and high temperature strong brine flows into a horizontal heat collection shed bottom heat storage layer to store energy. The system provided by the invention has a compact structure, separates a power source and an energy source reasonably, can better use and manage solar energy, and improves the yield of fresh water.
Description
Technical field
The invention belongs to field of sea water desalting technology, relate to a kind of solar heat method method for desalting seawater, particularly a kind of solar seawater desalination system of embedded pair of chimney type and desalination method.
Background technology
China Freshwater resources occupancy volume per person is about 2200m
3, be 1/4th of world average level, united state is classified as one of country of 13 most lacks of water.China is ocean big country, and shoreline is very long, and sun power can be utilized to carry out sea water desaltination.Existing desalination with Solar Energy has reached more than 20 and has planted, and it mainly contains two kinds of modes: one is utilize solar electrical energy generation to drive reverse osmosis process; Two is utilize sun power to produce heat energy to distill seawater, its phase transformation to be evaporated.Solar energy reverse osmosis method needs the parts such as high-pressure pump, reverse osmosis membrane, interchanger, condenser, and thus system complex, initial cost cost is higher.And solar distilling method simple, be widely used, technology maturation, and without the need to the input of additional electrical energy.
Nineteen eighty-two, doctor Schlaich of Stuttgart University, Germany designs and establishes First solar chimney Demonstration Station, this power station is made up of turbine power generation unit three major partss of horizontally disposed circular thermal-arrest canopy, the chimney being positioned at thermal-arrest canopy central position and the connecting portion that is arranged in thermal-arrest canopy and chimney, and wherein chimney height is 194.6m, chimney radius is 5.08m, thermal-arrest canopy area 46000m
2, theoretical generated output is 50kW.Its working process is solar light irradiation thermal-arrest canopy, air in heating canopy and the soil under canopy, heated air temperature raises, density declines, the upstream that one is powerful is formed under the suction function of solar chimney, drive wind turbine electric generation, the freezing air simultaneously around thermal-arrest canopy supplements and enters in canopy, forms continual air circulation flow.Now there are some researches show that solar energy hot gas flow generating system electrical efficiency is extremely low, MW level power station electrical efficiency is only 1% rank.But this system thermal efficiency is higher, generally can more than 50% be reached.
Solar chimney system is combined with the sea water desaltination of solar distilling method, the heat energy obtained is used for evaporate the advantage that seawater can give full play to both from the sun, have that structure is simple, the advantage of greater efficiency.The existing case that solar chimney system is combined with the sea water desaltination of solar distilling method in existing patent, be respectively: notification number CN1331764C, the day for announcing is on August 15th, 2007 and publication number is CN101358578A, and the day for announcing is the Chinese invention patent on February 4th, 2009.But these patents all directly arrange brine tank under thermal-arrest canopy, sun power will have a large amount of energy expenditure in salt solution evaporation when heating thermal-arrest canopy, thus have lost a large amount of energy, simultaneously also make the variable density of steam in thermal-arrest canopy reduce, and then have impact on the gas velocity that enters chimney thus reduce fresh water productive rate.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, technical problem to be solved by this invention there is provided a kind of novel seawater desalination system based on solar chimney, and this system adopts sun power to provide the system schema of energy source and propulsion source respectively.Particularly: energy source is mainly used in optically focused heating seawater and it is evaporated, propulsion source mainly adds warm air thus in chimney, produces flow at high speed air-flow, is cooled to fresh water after evaporation gained steam and upstream enter embedded solar chimney through condenser.The present invention simultaneously also introduces preheating, energy recovery and hold over system.
The present invention for achieving the above object, adopts following technical scheme:
A kind of embedded pair of chimney type solar seawater desalination system, comprises inner chimney (1), trunk of funnel (2), linear Fresnel formula concentrating collector (3), transparent thermal-arrest canopy (5), seawater preheating device (6), condenser (7), seawater input tube (8), water receiving tank (10), fresh water tank (11), thermal-arrest canopy bottom surface absorber plate (12), concentrated seawater heat storage can (13), support group (17), fresh water pipe connecting (18), described inner chimney (1) is embedded in trunk of funnel (2), and inner chimney (1) outlet below arranges seawater preheating device (6), trunk of funnel (2) built-in condenser (7), the bottom of described inner chimney (1) connects transparent thermal-arrest canopy (5), described junction arranges water receiving tank (10), described water receiving tank (10) connects fresh water tank (11) by fresh water pipe connecting (18), described transparent thermal-arrest canopy (5) bottom is supported by many groups support group (17), described support group (17) is positioned at the top of thermal-arrest canopy bottom surface absorber plate (12) that annular is arranged, described support group (17) upper end is also oblique arranges linear Fresnel formula concentrating collector (3), described thermal-arrest canopy bottom surface absorber plate (12) below arranges concentrated seawater heat storage can (13), described concentrated seawater heat storage can (13) below arranges horizontal seawater input tube (8).
Above-mentioned inner chimney (1) bottom arranges wind turbine (4).
Above-mentioned linear Fresnel formula concentrating collector (3) is made up of Fresnel Lenses (19) and blacking heat-absorbing surface (20), and described Fresnel Lenses (19) is wider than blacking heat-absorbing surface (20).
Above-mentioned blacking heat-absorbing surface (20) adopts pitch-dark, and is stepped appearance.
Arrange seawater circumference skimmer (9) in above-mentioned trunk of funnel (2), described seawater circumference skimmer (9) is connected with blacking heat-absorbing surface (20).
Above-mentioned fresh water tank (11) is horizontally disposed with fresh water output tube (15), and described concentrated seawater heat storage can (13) is horizontally disposed with concentrated seawater output tube (16).
Above-mentioned condenser (7) higher than inner chimney (1) outlet, and is arranged symmetrically with for inclination.
Above-mentioned transparent thermal-arrest canopy (5) arranges ventilation opening (14).
A kind of embedded pair of chimney type solar desalination process, utilizes above-mentioned system, comprises the steps:
(1), seawater after primary filter by pump delivery to seawater preheating device (6), temperature is improved at this place and extraneous wetting vapour heat exchange, then slowly flowed on blacking heat-absorbing surface (20) by seawater circumference separating tube (9), heat-absorbing surface is formed seawater liquid film, thus heat blacking heat-absorbing surface (20) by Fresnel Lenses (19) optically focused, and then the seawater thin film evaporation making above heat-absorbing surface, produce water vapour, concentrated seawater then flows in concentrated seawater tank (13), give at this place accumulation heat energy and use without when the sun, flowed out by concentrated seawater output tube (16) after the storage of concentrated seawater tank water is full,
(2), air divides two-way, one road flows in linear Fresnel concentrating collector (3), another road enters inner chimney (1) between transparent thermal-arrest canopy (5) and thermal-arrest canopy bottom surface absorber plate (12), in linear Fresnel concentrating collector (3), air is purged above seawater film, when seawater film rapid evaporation, atmospheric moisture rolls up, wet air enters between interior trunk of funnel wall under buoyancy lift effect and inner chimney (1) jet ejector action, then seawater preheating device (6) is flowed to, suddenly increase seawater preheating device (6) effect in addition in this place's wet air fluid-space thus be condensed into fresh water drippage and enter the water receiving tank (10) of below then stored in fresh water tank (11), between transparent thermal-arrest canopy (5) and thermal-arrest canopy bottom surface absorber plate (12), heated when air flows through transparent thermal-arrest canopy (5), thus temperature high-density reduces, and enters inner chimney (1), then flow to trunk of funnel (2) under the effect of chimney buoyancy lift.
(3), being mixed in trunk of funnel (2) with the wet air through seawater preheating device (6) enters condenser (7), continues some vapor condensation, then enter air at this place;
(4), wind turbine (4) gives over to peak regulation use; The electric energy that wind-power electricity generation obtains is together stored in store battery after invertor frequency modulation, and then driving pump makes seawater flow into seawater input tube (8), directly can be used as electrically heated seawater film or concentrated seawater container for storing liquid (13) if any electric energy is more than needed.
The present invention is operationally:
Linear Fresnel formula condensing apparatus is centered by sun power trunk of funnel, peripheral, oblique distributes, seawater after primary filter by pump delivery to seawater preheating device, temperature is improved in this place and the wetting vapour of trunk of funnel and the warm air heat exchange of inner chimney, slowly enter on blacking heat-absorbing surface after then being shunted by circumferential separating tube, form seawater liquid film.Sun power is assembled by linear Fresnel formula thus is heated blacking heat-absorbing surface, then heats the seawater film of its lower surface by heat-absorbing surface thus produce steam.Blacking heat-absorbing surface is notch cuttype, can effectively increase evaporation of seawater amount.The concentrated seawater that seawater produces after pervaporation then flows in the concentrated seawater tank below the absorber plate of thermal-arrest canopy bottom surface, and gives over to use without when the sun at this place accumulation heat energy.Then flowed out by concentrated seawater output tube after the storage of concentrated seawater tank water is full.Air divides two-way to enter this system, and portion of air adds thermogenesis buoyancy lift via linear Fresnel concentrating collector, purged above seawater film fast, make seawater film rapid evaporation, and atmospheric moisture rolls up.Wet air enters in the interlayer of interior trunk of funnel under buoyancy lift effect, then flows to seawater preheating device, increases suddenly seawater preheating device effect in addition thus be condensed into fresh water drippage to enter the water receiving tank of below then stored in fresh water tank in this place's wet air fluid-space.Portion of air is via the air casing formed between thermal-arrest canopy bottom surface absorber plate and thermal-arrest canopy bottom surface absorber plate in addition, in this interlayer, air is heated by the absorber plate bottom thermal-arrest canopy, thus temperature high-density reduces, density difference is formed with outside atmosphere, thus mineralization pressure is poor, produce powerful upstream and drive the wind turbine being placed in inner chimney bottom center, thus drive electrical generators generating, then flow to trunk of funnel.And air at this moment remains the hot blast of rising, this hot blast can injection through the wet air of seawater preheating device, chimney two channels be finally mixed enter trunk of funnel after continue to rise, through condenser, at this place by wetting vapour time condensation, form fresh water and drip along trunk of funnel wall.This condenser is that inclination is arranged symmetrically with, be convenient to fresh water and can be collected to trunk of funnel wall, and condenser portion stretches out chimney outside, natural circulation is formed in condenser inside, the water that temperature is high can be circulated to the part of condenser in chimney outside and be undertaken air-cooled by outside atmosphere, and the low water cycle of temperature, to condenser, cools the wetting vapour risen, this condenser is higher due to position simultaneously, can cool in the envrionment temperature utilizing night lower.
Technical scheme of the present invention compared with prior art, has following beneficial effect: have inclination thermal-arrest canopy circumferentially, can strengthen the security of chimney while increasing the solar radiation quantity absorbed; Have inside and outside two chimneys, air divides two-way to enter system, sea water desaltination efficiency can be made to improve through air allocation optimized; Area under the line, linear Fresnel formula condensing apparatus is centered by sun power trunk of funnel, and circumferential uniform pitch distribution, can increase the collector area of heat collector, and improve its collecting efficiency; Condenser is used can effectively to improve water vapor condensation efficiency; Condenser is that inclination is arranged symmetrically with, and is convenient to fresh water and can be collected to trunk of funnel wall, and part is stretched out chimney outside its condenser inside can be made to form natural circulation, thus does not need the input of additional energy source.
Accompanying drawing explanation
In order to make the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail, wherein:
Fig. 1 is the present invention's embedded pair of chimney type solar seawater desalination system schematic diagram.
Fig. 2 is linear Fresnel formula concentrating collector structure iron of the present invention.
Fig. 3 is the sectional view of trunk of funnel inner condenser.
In figure:
1, inner chimney, 2, trunk of funnel, 3, linear Fresnel formula concentrating collector, 4, wind turbine, 5, transparent thermal-arrest canopy, 6, seawater preheating device, 7, condenser, 8, seawater input tube, 9, seawater circumference separating tube, 10, water receiving tank, 11, fresh water tank, 12, thermal-arrest canopy bottom surface absorber plate, 13, concentrated seawater heat storage can, 14, ventilation opening, 15, fresh water output tube, 16, concentrated seawater output tube, 17, support group, 18, fresh water pipe connecting, 19, Fresnel Lenses, 20, blacking heat-absorbing surface.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.As shown in Figure 1, a kind of embedded pair of chimney type solar seawater desalination system, comprises inner chimney 1, trunk of funnel 2, linear Fresnel formula concentrating collector 3, transparent thermal-arrest canopy 5, seawater preheating device 6, condenser 7, seawater input tube 8, water receiving tank 10, fresh water tank 11, thermal-arrest canopy bottom surface absorber plate 12, concentrated seawater heat storage can 13, support group 17, fresh water pipe connecting 18; Inner chimney 1 is embedded in trunk of funnel 2, and inner chimney 1 exports below and arranges seawater preheating device 6, the built-in condenser 7 of trunk of funnel 2; The bottom of inner chimney 1 connects transparent thermal-arrest canopy 5, junction arranges water receiving tank 10, water receiving tank 10 connects fresh water tank 11 by fresh water pipe connecting 18, supported by many group support groups 17 bottom transparent thermal-arrest canopy 5, support group 17 is positioned at the top of the thermal-arrest canopy bottom surface absorber plate 12 that annular is arranged, support group 17 upper end is also oblique arranges linear Fresnel formula concentrating collector 3, arranges concentrated seawater heat storage can 13, arrange horizontal seawater input tube 8 below concentrated seawater heat storage can 13 below thermal-arrest canopy bottom surface absorber plate 12.
Bottom above-mentioned inner chimney 1, wind turbine 4 is set.
Above-mentioned linear Fresnel formula concentrating collector 3 is made up of Fresnel Lenses 19 and blacking heat-absorbing surface 20, and described Fresnel Lenses 19 is wider than blacking heat-absorbing surface 20.
Above-mentioned blacking heat-absorbing surface 20 adopts pitch-dark, and is stepped appearance.
Arrange seawater circumference skimmer 9 in above-mentioned trunk of funnel 2, seawater circumference skimmer 9 is connected with blacking heat-absorbing surface 20.
Above-mentioned fresh water tank 11 is horizontally disposed with fresh water output tube 15, and concentrated seawater heat storage can 13 is horizontally disposed with concentrated seawater output tube 16.
Above-mentioned condenser 7 exports higher than inner chimney 1, and is arranged symmetrically with for inclination.
Above-mentioned transparent thermal-arrest canopy 5 arranges ventilation opening 14.
A kind of embedded pair of chimney type solar desalination process, seawater after primary filter by pump delivery to seawater preheating device 6, temperature is improved at this place and extraneous wetting vapour heat exchange, then slowly flowed on blacking heat-absorbing surface 20 by seawater circumference separating tube 9, heat-absorbing surface is formed seawater liquid film, thus heat blacking heat-absorbing surface 20 by Fresnel Lenses 19 optically focused, and then the seawater thin film evaporation making above heat-absorbing surface, produce water vapour, concentrated seawater then flows in concentrated seawater tank 13, gives over to use without when the sun at this place accumulation heat energy.Then flowed out by concentrated seawater output tube 16 after the storage of concentrated seawater tank water is full.Centered by chimney circumferentially, for making condensing apparatus efficiency higher, the position can placed according to it and position of sun regulate linear Fresnel formula condensing apparatus 3.Air divides two-way, and a road flows in linear Fresnel concentrating collector 3, and another road enters inner chimney 1 between transparent thermal-arrest canopy 5 and thermal-arrest canopy bottom surface absorber plate 12.In linear Fresnel concentrating collector 3, air is purged above seawater film, and when seawater film rapid evaporation, atmospheric moisture rolls up.Wet air enters between interior trunk of funnel wall under buoyancy lift effect and inner chimney 1 jet ejector action, then flow to seawater preheating device 6, this place's wet air fluid-space increase suddenly seawater preheating device 6 in addition act on thus be condensed into fresh water drippage enter below water receiving tank 10 then stored in fresh water tank 11.Between transparent thermal-arrest canopy 5 and thermal-arrest canopy bottom surface absorber plate 12, heated when air flows through thermal-arrest canopy, thus temperature high-density reduces, and enters inner chimney 1, then flow to trunk of funnel 2 under the effect of chimney buoyancy lift.Be mixed with the wet air through seawater preheating device 6 in trunk of funnel and enter condenser 7, continue some vapor condensation at this place, then enter air.Wind turbine 4 gives over to peak regulation and uses.The electric energy that wind-power electricity generation obtains is together stored in store battery after invertor frequency modulation, and then driving pump makes seawater flow into seawater input tube 8.Directly electrically heated seawater film or concentrated seawater container for storing liquid 13 can be used as if any electric energy is more than needed.
Claims (9)
1. an embedded pair of chimney type solar seawater desalination system, is characterized in that: comprise inner chimney (1), trunk of funnel (2), linear Fresnel formula concentrating collector (3), transparent thermal-arrest canopy (5), seawater preheating device (6), condenser (7), seawater input tube (8), water receiving tank (10), fresh water tank (11), thermal-arrest canopy bottom surface absorber plate (12), concentrated seawater heat storage can (13), support group (17), fresh water pipe connecting (18), described inner chimney (1) is embedded in trunk of funnel (2), and inner chimney (1) outlet below arranges seawater preheating device (6), trunk of funnel (2) built-in condenser (7), the bottom of described inner chimney (1) connects transparent thermal-arrest canopy (5), described junction arranges water receiving tank (10), described water receiving tank (10) connects fresh water tank (11) by fresh water pipe connecting (18), described transparent thermal-arrest canopy (5) bottom is supported by many groups support group (17), described support group (17) is positioned at the top of thermal-arrest canopy bottom surface absorber plate (12) that annular is arranged, described support group (17) upper end is also oblique arranges linear Fresnel formula concentrating collector (3), described thermal-arrest canopy bottom surface absorber plate (12) below arranges concentrated seawater heat storage can (13), described concentrated seawater heat storage can (13) below arranges horizontal seawater input tube (8).
2. one according to claim 1 embedded pair of chimney type solar seawater desalination system, is characterized in that: described inner chimney (1) bottom arranges wind turbine (4).
3. one according to claim 1 embedded pair of chimney type solar seawater desalination system, it is characterized in that: described linear Fresnel formula concentrating collector (3) is made up of Fresnel Lenses (19) and blacking heat-absorbing surface (20), described Fresnel Lenses (19) is wider than blacking heat-absorbing surface (20).
4. one according to claim 3 embedded pair of chimney type solar seawater desalination system, is characterized in that: described blacking heat-absorbing surface (20) adopts pitch-dark, and is stepped appearance.
5. one according to claim 1 embedded pair of chimney type solar seawater desalination system, is characterized in that: arrange seawater circumference skimmer (9) in described trunk of funnel (2), and described seawater circumference skimmer (9) is connected with blacking heat-absorbing surface (20).
6. one according to claim 1 embedded pair of chimney type solar seawater desalination system, is characterized in that: described fresh water tank (11) is horizontally disposed with fresh water output tube (15), described concentrated seawater heat storage can (13) is horizontally disposed with concentrated seawater output tube (16).
7. one according to claim 1 embedded pair of chimney type solar seawater desalination system, is characterized in that: described condenser (7) higher than inner chimney (1) outlet, and is arranged symmetrically with for inclination.
8. one according to claim 1 embedded pair of chimney type solar seawater desalination system, is characterized in that: described transparent thermal-arrest canopy (5) arranges ventilation opening (14).
9. an embedded pair of chimney type solar desalination process, is characterized in that the system utilized described in claim 1-8, comprises the steps:
(1), seawater after primary filter by pump delivery to seawater preheating device (6), temperature is improved at this place and extraneous wetting vapour heat exchange, then slowly flowed on blacking heat-absorbing surface (20) by seawater circumference separating tube (9), heat-absorbing surface is formed seawater liquid film, thus heat blacking heat-absorbing surface (20) by Fresnel Lenses (19) optically focused, and then the seawater thin film evaporation making above heat-absorbing surface, produce water vapour, concentrated seawater then flows in concentrated seawater tank (13), give at this place accumulation heat energy and use without when the sun, flowed out by concentrated seawater output tube (16) after the storage of concentrated seawater tank water is full,
(2), air divides two-way, one road flows in linear Fresnel concentrating collector (3), another road enters inner chimney (1) between transparent thermal-arrest canopy (5) and thermal-arrest canopy bottom surface absorber plate (12), in linear Fresnel concentrating collector (3), air is purged above seawater film, when seawater film rapid evaporation, atmospheric moisture rolls up, wet air enters between interior trunk of funnel wall under buoyancy lift effect and inner chimney (1) jet ejector action, then seawater preheating device (6) is flowed to, suddenly increase seawater preheating device (6) effect in addition in this place's wet air fluid-space thus be condensed into fresh water drippage and enter the water receiving tank (10) of below then stored in fresh water tank (11), between transparent thermal-arrest canopy (5) and thermal-arrest canopy bottom surface absorber plate (12), heated when air flows through transparent thermal-arrest canopy (5), thus temperature high-density reduces, and enters inner chimney (1), then flow to trunk of funnel (2) under the effect of chimney buoyancy lift,
(3), being mixed in trunk of funnel (2) with the wet air through seawater preheating device (6) enters condenser (7), continues some vapor condensation, then enter air at this place;
(4), wind turbine (4) gives over to peak regulation use; The electric energy that wind-power electricity generation obtains is together stored in store battery after invertor frequency modulation, and then driving pump makes seawater flow into seawater input tube (8), directly can be used as electrically heated seawater film or concentrated seawater container for storing liquid (13) if any electric energy is more than needed.
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| CN106698567A (en) * | 2017-01-18 | 2017-05-24 | 河海大学 | Solar power generation and seawater desalination device of combining condenser and wind turbine |
| CN106856699A (en) * | 2017-03-09 | 2017-06-20 | 天津商业大学 | A kind of active desalting salinized soil device of utilization solar energy effect |
| CN108870798A (en) * | 2017-05-12 | 2018-11-23 | 浙江大学 | Radiation refrigeration particle and devaporation recyclable device |
| CN108911339A (en) * | 2018-08-21 | 2018-11-30 | 吴爱兵 | A method of utilizing seawater preparing fresh |
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