DE102008051840A1 - Method for obtaining fresh water by condensation of cold salt water, comprises cooling a condensation plate with cold salt water, which is heated in a solar collector before the condensation - Google Patents
Method for obtaining fresh water by condensation of cold salt water, comprises cooling a condensation plate with cold salt water, which is heated in a solar collector before the condensation Download PDFInfo
- Publication number
- DE102008051840A1 DE102008051840A1 DE102008051840A DE102008051840A DE102008051840A1 DE 102008051840 A1 DE102008051840 A1 DE 102008051840A1 DE 102008051840 A DE102008051840 A DE 102008051840A DE 102008051840 A DE102008051840 A DE 102008051840A DE 102008051840 A1 DE102008051840 A1 DE 102008051840A1
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- Germany
- Prior art keywords
- condensation
- water
- cooling
- evaporation
- cold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- 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
-
- 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
-
- 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
-
- 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
-
- 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
- Y02A20/211—Solar-powered water purification
-
- 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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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft ein Verfahren zur Süsswassergewinnung mittels Kondensation aus salzigem Wasser.The The present invention relates to a process for fresh water extraction by condensation of salty water.
Stand der TechnikState of the art
In Wüsten, wie z. B. der Sahara, besteht ein grosser Bedarf an Trinkwasser. Kaltes salziges Grundwasser kann dort gefördert werden. Zur Süsswassergewinnung aus Salzwasser mittels Kondensation sind bereits viele unterschiedliche Verfahren bekannt. Grundsätzlich wird dabei Salzwasser zum Verdunsten gebracht. Dieses kondensiert an oder in einem Kondensator, meist einer Platte oder ebenen Fläche, die leicht geneigt ist. Von dieser wird das Kondensat dann abgeführt und gesammelt. Nachteiligerweise benötigen diese Verfahren entweder eine grosse Grundfläche, verursachen hohe Energiekosten, fordern einen hohen Investitionseinsatz oder sind in ihrer Wirkung sehr begrenzt.In Deserts, such as As the Sahara, there is a great need to drinking water. Cold salty groundwater can be produced there become. For freshwater extraction from salt water by means of Condensation are already many different methods known. Basically salt water is brought to evaporate. This condenses on or in a condenser, usually a plate or flat surface that is slightly inclined. Of this the condensate is then removed and collected. Unfortunately, these methods either require a large footprint, cause high energy costs, require a high investment input or are very limited in their effect.
Ein
entsprechendes Verfahren zur solaren Trinkwassererzeugung zeigt
zum Beispiel die
Aufgabe der vorliegenden ErfindungObject of the present invention
Aufgabe der vorliegenden Erfindung ist ein verbessertes Verfahren zur Süsswassergewinnung mittels einer kontrollierten Kondensation, bei dem der Energieaufwand deutlich reduziert wird, zu schaffen.task The present invention provides an improved process for fresh water production by means of a controlled condensation, in which the energy consumption significantly is reduced to create.
Lösung der AufgabeSolution of the task
Zur Lösung der Aufgabe führt, dass eine Kondensationsplatte mit kaltem salzigen Wasser gekühlt wird.to Solution of the task that leads to a condensation plate is cooled with cold salty water.
Bei dem erfindungsgemässen Verfahren zur Süsswassergewinnung aus kaltem salzigen Wasser, vorzugsweise Grundwasser, wie es in der Wüste Sahara gefördert werden kann, wird das kalte salzige Grundwasser nicht nur als Ausgangsprodukt, sondern auch als Kühlmedium für die Kondensationsplatte verwendet.at the novel process for fresh water production from cold salty water, preferably groundwater, as in the Sahara desert can be promoted cold salty groundwater not only as a starting product, but also as a cooling medium for the condensation plate used.
Zusätzlich wird das kalte salzige Grundwasser, bevor es in einen Kondensationsraum eingebracht wird, aufgeheizt. Dazu wird vorzugsweise ein Solarkollektor eingesetzt.additionally gets the cold salty groundwater before it enters a condensation room is introduced, heated. For this purpose, preferably a solar collector used.
Beide Medien werden in einen Behälter, der durch eine Kondensationsplatte in einen Kühl- und einen Kondensationsraum unterteilt ist, geleitet. Dabei läuft das kalte salzige Wasser durch den Kühlwasserraum und kühlt die Kondensationsplatte. Währenddessen läuft das erwärmte salzige Wasser durch den Kondensationsraum und kondensiert teilweise an der kalten Kondensationsplatte. Dadurch bildet sich salzfreies Kondensat. Das salzfreie Kondensat wird an der Kondensationsplatte aufgefangen, gesammelt und einer weiteren Trinkwasseraufbereitung zugeführt. Das ebenfalls wieder austretende kalte und warme salzige Grundwasser kann aufgefangen und abgeführt werden.Both Media are placed in a container through a condensation plate is divided into a cooling and a condensation space, directed. The cold salty water runs through the Cooling water space and cools the condensation plate. Meanwhile, the heated salty one is running Water through the condensation chamber and partially condenses the cold condensation plate. This forms salt-free condensate. The salt-free condensate is collected at the condensation plate, collected and fed to another drinking water treatment. The again emerging cold and warm salty groundwater can be collected and removed.
Dass beim erfindungsgemässen Verfahren das Kondensationsmedium den Kondensationsraum nur durchfliesst, hat den Vorteil, dass sich hier im Gegensatz zu Verfahren mit stehendem Kondensationsmedium keine Salzkruste absetzt, die wieder entfernt und entsorgt werden muss.That in the process according to the invention, the condensation medium only flows through the condensation chamber, has the advantage that here in contrast to methods with stationary condensation medium no salt crust deposits, which are removed and disposed of got to.
Ein weiterer Vorteil ist, dass nur Energiekosten für Pumpen oder ähnliches anfallen, die die Medien durch den Behälter fördern. Des weiteren sind auch die Investitionskosten für die Vorrichtung sehr gering, da weder Kondensationsplatte noch der Behälter grosse Anforderungen stellen. Das Verfahren kann z. B. auch in einem doppelwandigen Glasdach durchgeführt werden.One Another advantage is that only energy costs for pumps or the like accumulate the media through the container promote. Furthermore, the investment costs for the device very low, since neither condensation plate nor the container make great demands. The procedure can z. B. also performed in a double-walled glass roof become.
Um ein zu schnelles Abkühlen des Kondensationsmediums durch äussere Einflüsse zu verhindern, kann der Kondensationsraum mit einer Isolierung versehen werden. Vorzugsweise wird dazu mit dem Solarkollektor erwärmtes Wasser in oder durch eine Isolierschicht am Kondensationsraum gepumpt.Around Too fast cooling of the condensation medium by external To prevent influences, the condensation chamber with be provided an insulation. Preferably, with the Solar collector heated water in or through an insulating layer pumped at the condensation room.
Vom Erfindungsgedanken sollen aber alle Möglichkeiten zur Isolation des Kondensationsraums umfasst sein.from Thoughts of the invention are intended to provide all possibilities for isolation the condensation space comprises.
Durch die erfindungsgemässe Anordnung eines Heizelements und einer mit salzigem Grundwasser gekühlten Kondensationsplatte können Leistungen von mindestens 3 l/m2 erreicht werden.The inventive arrangement of a heating element and a cooled with salty groundwater condensation plate achievements of at least 3 l / m 2 can be achieved.
In einem weiteren erfindungsgemässen Ausführungsbeispiel werden mehrere der oben beschriebenen Kombinationen aus Kühl- und Verdunstungsraum übereinander angeordnet, vorzugsweise in einem Container-artigen Behälter. Zum Vorheizen der gesamten Wassermenge ist erfahrungsgemäss ein Solarkollektor ausreichend. Dieser wird dann als separates Heizelement vorzugsweise auf dem obersten Kondensationselement bzw. dem Containerdach angeordnet. Bei einer Anordnung von 10 bis 15 Lagen in einem Container können mit dem erfindungsgemässen Verfahren 3000–5000 Liter Süsswasser pro Tag gewonnen werden.In a further embodiment according to the invention, several of the above-described combinations of cooling and evaporation space are arranged one above the other, preferably in a container-like container. To preheat the total amount of water experience has shown that a solar collector is sufficient. This is then preferably arranged as a separate heating element on the uppermost condensation element or the container roof. In an arrangement of 10 to 15 layers in a container can with the erfindungsge 3000 to 5000 liters of fresh water per day must be recovered.
Figurenbeschreibungfigure description
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele sowie anhand der Zeichnung; diese zeigt inFurther Advantages, features and details of the invention will become apparent the following description of preferred embodiments as well as from the drawing; this shows in
Entsprechend
Das
Verdunstungs-/Kühlelement
Das
Heizelement
Als Förderelement wird vorzugsweise eine Pumpe eingesetzt. Der Erfindungsgedanke umfasst aber auch alle anderen Möglichkeiten, um die benötigte Förderleistung zu erreichen.When Conveying element is preferably used a pump. However, the idea of the invention also encompasses all other possibilities to achieve the required flow rate.
Als
Rohstoff steht kaltes, salziges Wasser
Erstens bildet es das Ausgangsprodukt,
aus dem mit dem erfindungsgemässen Verfahrens kaltes salzfreies
Kondensat
First, it forms the starting product, from the cold salt-free condensate with the inventive method
Zweitens
wird das kalte salzige Wasser
Die
Funktionsweise der vorliegenden Erfindung ist folgende:
Kaltes,
salziges Wasser
Cold, salty water
Nach
Durchlauf des Heizelements
Das
salzfreie, kalte Kondensat
In
einem weiteren, nicht dargestellten Ausführungsbeispiel
werden mehrere erfindungsgemässe Verdunstungs-/Kühlelemente
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 10047522 A1 [0003] DE 10047522 A1 [0003]
Claims (14)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008051840A DE102008051840A1 (en) | 2008-10-17 | 2008-10-17 | Method for obtaining fresh water by condensation of cold salt water, comprises cooling a condensation plate with cold salt water, which is heated in a solar collector before the condensation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008051840A DE102008051840A1 (en) | 2008-10-17 | 2008-10-17 | Method for obtaining fresh water by condensation of cold salt water, comprises cooling a condensation plate with cold salt water, which is heated in a solar collector before the condensation |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008051840A1 true DE102008051840A1 (en) | 2010-04-22 |
Family
ID=42034875
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102008051840A Withdrawn DE102008051840A1 (en) | 2008-10-17 | 2008-10-17 | Method for obtaining fresh water by condensation of cold salt water, comprises cooling a condensation plate with cold salt water, which is heated in a solar collector before the condensation |
Country Status (1)
Country | Link |
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DE (1) | DE102008051840A1 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10047522A1 (en) | 2000-09-22 | 2002-04-18 | Envitech Gmbh | Device for solar drinking water production from sea or brackish water |
-
2008
- 2008-10-17 DE DE102008051840A patent/DE102008051840A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10047522A1 (en) | 2000-09-22 | 2002-04-18 | Envitech Gmbh | Device for solar drinking water production from sea or brackish water |
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Legal Events
Date | Code | Title | Description |
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R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20110502 |