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DE19527908A1 - Appts. for vaporisation of seawater to recover water - with thermal desalination device and heat exchanger - Google Patents

Appts. for vaporisation of seawater to recover water - with thermal desalination device and heat exchanger

Info

Publication number
DE19527908A1
DE19527908A1 DE1995127908 DE19527908A DE19527908A1 DE 19527908 A1 DE19527908 A1 DE 19527908A1 DE 1995127908 DE1995127908 DE 1995127908 DE 19527908 A DE19527908 A DE 19527908A DE 19527908 A1 DE19527908 A1 DE 19527908A1
Authority
DE
Germany
Prior art keywords
heat exchanger
seawater
appts
heat
vaporisation
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.)
Withdrawn
Application number
DE1995127908
Other languages
German (de)
Inventor
Heinz Stoehr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE1995127908 priority Critical patent/DE19527908A1/en
Publication of DE19527908A1 publication Critical patent/DE19527908A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/02Treatment of water, waste water, or sewage by heating
    • C02F1/04Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/06Flash evaporation
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124Water desalination

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

Appts. for vaporising seawater (1) comprises vaporisation chamber (2) with a thermal seawater desalination device in the condensing part (4) of the chamber unit and a heat exchanger (5) that operates on a natural circulation basis with a double phase change (5a, 5b), and transfers the condensation heat of the distillate to the seawater to be heated.

Description

Die Erfindung betrifft eine Destillationsanlage, wie sie im besonderen zur Meerwas­ serentsalzung eingesetzt wird. Das Ziel der Erfindung besteht in einer wirksamen thermischen Destillationsanlage, die gegenüber dem bekannten MSF-Verfahren bei gegebenem Energieeinsatz - und Investitionsvolumen eine höhere Produktausbeute erreicht.The invention relates to a distillation plant, in particular for sea water desalination is used. The aim of the invention is an effective one thermal distillation plant, which compared to the known MSF process given energy and investment volume a higher product yield reached.

Zur Erreichung dieses Ziels weist die Anlage folgende Merkmale auf: Analog zu be­ stehenden Single Stage Flash (SSF) - und Multi Stage Flash (MSF) Anlagen enthält die Anlage eine (SSF) oder mehrere (MSF = mit Temperatur- und Druckgefälle) Kam­ mern, in denen bei Unterdruck Meerwasser verdampft und bei räumlicher Absonde­ rung kondensiert wird.To achieve this goal, the system has the following features: Analogous to be Standing Single Stage Flash (SSF) and Multi Stage Flash (MSF) systems contain the Plant one (SSF) or several (MSF = with temperature and pressure gradient) Kam in which sea water evaporates under negative pressure and in the case of spatial probe tion is condensed.

Abweichend zum bekannten MSF-Verfahren wird im Kondensationsteil dieser Kammern Kondensationswärme nicht direkt an die als Wärmetauscher wirkenden Meerwassereinlaufrohre abgegeben, sondern der Meerwassereinlauf bleibt von der Kondensationsseite der Verdampfungskammern räumlich getrennt. Es wird ein Wärmetauschelement mit doppeltem Phasenwechsel flüssig/gasförmig im Kondensa­ tionsteil der Kammern und gasförmig/flüssig im Meerwassereinlauf eingeschaltet. Dieses Wärmetauschelement wird im Naturumlauf betrieben, es enthält ein Fluid (in der Regel Wasser) und wird auf die jeweilige Kammer mit der aufzunehmenden Ent­ halphie und der gegebenen Druck- und Temperaturverhältnisse abgestimmt. Die Gleichzeitigkeit der Abgabe von Kondensationswarme im Kondensationsteil mit der Aufnahme von Verdampfungswärme durch Phasenwechsel im Wärmetauscher er­ möglicht eine bessere Wärmeübertragung, so daß eine Verringerung der korrosions­ gefährdeten und damit hochwertige Wertstoffe bedingende Kondensatorflächen und eine größere Temperatur- und Druckabsenkung und damit eine höhere Produktaus­ beute pro Kammer möglich ist.In contrast to the known MSF process, this is in the condensation part Chambers do not condense heat directly to those acting as heat exchangers Seawater inlet pipes given off, but the seawater inlet remains from the Condensation side of the evaporation chambers spatially separated. It will be a Heat exchange element with double phase change liquid / gaseous in the condenser tion part of the chambers and gaseous / liquid in the seawater inlet switched on. This heat exchange element is operated in natural circulation, it contains a fluid (in usually water) and is applied to the respective chamber with the Ent halphie and the given pressure and temperature conditions. The Simultaneous delivery of heat of condensation in the condensation part with the Absorption of heat of vaporization by phase change in the heat exchanger possible better heat transfer, so that a reduction in corrosion endangered and thus high quality recyclable condenser surfaces and a greater reduction in temperature and pressure and thus a higher product loot per chamber is possible.

Es ergibt sich folgendes Schema: Von der Endvorwärmung kommendes Meerwasser 1 tritt in die Verdampfungskammer 2 ein, wird dort verdampft, über einen Demi­ ster (Tropfenabscheider) 3 in die Kondensationskammer geleitet 4 und dort kon­ densiert 5. Die Kondensationswärme des kondensierenden Dampfes wird über einen Wärmetauscher mit doppeltem Phasenwechsel 5a und 5b in den Meerwas­ sereinlauf 6 abgeführt, das der Endvorwärmung zugeführt wird. Die eingedickte Sole 7 wird abgeführt und ggf. einer weiteren Kammer zugeführt. Das entsalzte Wasser 8 wird abgeleitet.The following scheme results: Sea water 1 coming from the final preheating enters the evaporation chamber 2 , is evaporated there, passed via a demister (droplet separator) 3 into the condensation chamber 4 and condensed there 5 . The heat of condensation of the condensing steam is removed via a heat exchanger with a double phase change 5 a and 5 b in the seawater inlet 6 , which is fed to the final preheating. The thickened brine 7 is removed and, if necessary, fed to a further chamber. The desalinated water 8 is drained off.

Claims (2)

1. Vorrichtung zur Entspannungsverdampfung von Meerwasser dadurch gekennzeichnet, daß in Entspannungsverdampfungskammern einer thermischen Meerwasserentsal­ zungsanlage im Kondensationsteil der Kammern ein im Naturumlauf betriebener Wärmetauscher mit doppeltem Phasenwechsel betrieben wird, der die Kondensati­ onswärme des Destillats an das zu erwärmende Meerwasser überträgt.1. An apparatus for flash evaporation of sea water, characterized in that in relaxation vaporization chambers of a thermal sea water desal plant in the condensation part of the chambers, a heat exchanger operated in natural circulation is operated with a double phase change, which transfers the heat of condensation of the distillate to the sea water to be heated. 2. Anlage nach Anspruch 1, dadurch gekennzeichnet, daß zur Aufnahme der Kondensationswärme des Wärmetauschers zusätzlich Kühlwasser, das nicht der End­ vorwärmung zugeführt, eingesetzt wird.2. Plant according to claim 1, characterized in that for receiving the Heat of condensation of the heat exchanger additionally cooling water, which is not the end preheating supplied, is used.
DE1995127908 1995-07-29 1995-07-29 Appts. for vaporisation of seawater to recover water - with thermal desalination device and heat exchanger Withdrawn DE19527908A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1995127908 DE19527908A1 (en) 1995-07-29 1995-07-29 Appts. for vaporisation of seawater to recover water - with thermal desalination device and heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1995127908 DE19527908A1 (en) 1995-07-29 1995-07-29 Appts. for vaporisation of seawater to recover water - with thermal desalination device and heat exchanger

Publications (1)

Publication Number Publication Date
DE19527908A1 true DE19527908A1 (en) 1997-01-30

Family

ID=7768200

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1995127908 Withdrawn DE19527908A1 (en) 1995-07-29 1995-07-29 Appts. for vaporisation of seawater to recover water - with thermal desalination device and heat exchanger

Country Status (1)

Country Link
DE (1) DE19527908A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008023566A1 (en) * 2008-05-05 2009-11-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Process and device for obtaining water from moist ambient air
CN104150547A (en) * 2013-05-15 2014-11-19 张世严 Normal-temperature distillation seawater desalination device
CN104773776A (en) * 2015-03-23 2015-07-15 张世严 Normal-temperature whole-phase-change seawater desalination device
CN104773775B (en) * 2014-01-13 2017-06-23 张世严 Full phase transformation distillation seawater desalinating device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008023566A1 (en) * 2008-05-05 2009-11-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Process and device for obtaining water from moist ambient air
CN104150547A (en) * 2013-05-15 2014-11-19 张世严 Normal-temperature distillation seawater desalination device
CN104150547B (en) * 2013-05-15 2016-03-30 张世严 Full phase change distillation seawater desalination device
CN104773775B (en) * 2014-01-13 2017-06-23 张世严 Full phase transformation distillation seawater desalinating device
CN104773776A (en) * 2015-03-23 2015-07-15 张世严 Normal-temperature whole-phase-change seawater desalination device

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Legal Events

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8139 Disposal/non-payment of the annual fee