WO2006029603A1 - Meerwasserentsalzungsanlage - Google Patents
Meerwasserentsalzungsanlage Download PDFInfo
- Publication number
- WO2006029603A1 WO2006029603A1 PCT/DE2005/001608 DE2005001608W WO2006029603A1 WO 2006029603 A1 WO2006029603 A1 WO 2006029603A1 DE 2005001608 W DE2005001608 W DE 2005001608W WO 2006029603 A1 WO2006029603 A1 WO 2006029603A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- seawater
- heat
- cascade
- desalination plant
- seawater desalination
- Prior art date
Links
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
- C02F1/06—Flash evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/007—Energy recuperation; Heat pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/06—Flash distillation
- B01D3/065—Multiple-effect flash distillation (more than two traps)
-
- 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
- C02F1/16—Treatment of water, waste water, or sewage by heating by distillation or evaporation using waste heat from other processes
-
- 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
-
- 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
- C02F2301/06—Pressure conditions
- C02F2301/063—Underpressure, vacuum
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
Definitions
- the invention relates to a seawater desalination plant.
- the inflowing salt water (saline feedwater) is heated after a small chemical treatment to prevent deposition, progressively in the preheating section (tube bundle heat exchanger) and reaches the end heater (Brine Heater).
- the water with the aid of Wär ⁇ meenergy usually water vapor at 90 0 C - heated 110 0 C.
- a higher temperature is not desirable because, in particular, calcium sulfate (CaSO4) to solve at 115 0 C from the salt water and heavy deposits. cause the system to be shut down.
- the heated water is now forwarded to the first evaporation stage, de ⁇ ren ambient pressure is reduced, that a part of the water ver ⁇ flashes (flashing).
- the water vapor condenses and additionally heats the countercurrent salt water.
- the resulting distillate is collected and discharged separately.
- the remaining Brine is pumped further into the following boiler, where the same process takes place again at lower pressure and temperature levels.
- Typical MSF plants have between 15 and 25 stages and produce between 4,000 - 100,000 m 3 / d fresh water.
- Another method for desalination of seawater is the multi-effect distillation (MED) and the methods based on reverse osmosis on a membrane (reverse osmosis or RO) in question.
- MED multi-effect distillation
- RO reverse osmosis
- the membrane process (RO) is significantly better than the thermal processes (MSF, MED), since only in the case of the Distillation process thermal energy is needed.
- the bandwidths given in the table depend on the type of installation and the size of the installation, because with increasing system efficiency (system type) and increasing steam volume (system size), the specific energy requirement decreases.
- the membrane process does not score significantly better than the thermal process MED, since the maintenance costs are lower in the distillation processes.
- the filters used in the membrane process only have a lifespan of five years, which leads to high costs.
- the bandwidths given in the table do not depend on the type of installation and the size of the installation but on the type of energy used (gas, oil, nuclear energy).
- the selection criteria for the selected project goal can now be formulated.
- the task for the invention results from the improvement of the known processes for the production of drinking water from seawater (seawater desalination), in particular with regard to energy and the creation of a cost-effective and efficiently operated plant.
- the plant can thus be operated independently up to the supply of fossil fuels.
- a support or even complete operation by solar energies is possible.
- By suitable dimensioning a delivery of electrical energy is conceivable.
- FIG. 2 shows a schematic representation of the seawater desalination plant according to the invention
- FIG. 3 shows a table for the thermodynamic analysis of an MSF
- Figure 4 is a diagram of a heat pump
- FIG. 5 shows a diagram of a block heating station
- Figure 6 is a diagram for energy transport
- Figure 7 is a diagram for heat recovery.
- the plant concept according to the invention is as follows.
- the plant is based on the method of evaporation in order to allow desalting as free of residue as possible.
- the stepwise expansion or multi-stage flash technology is used:
- the construction of a chamber for Vakumverdampfung is shown in Figure 1.
- Seawater inlet Seawater (salt water) coming from the previous stage, which forces the condensation of the steam in the heat exchanger
- Residual water outlet cooled, partially evaporated seawater, which could not be evaporated and is passed on to the next stage
- Vacuum pump Supply line to the vacuum pump, which supplies the necessary vacuum for evaporation via a control valve
- the cogeneration plant is currently available as standard in heating systems and can provide heating energy and electricity at low cost through high efficiency.
- the heat pump can reduce the necessary heating demand and is supplied with electrical energy by the combined heat and power plant.
- the combined heat and power supplies, etc. also the power for pumps, control systems ..
- the heat pump preferably operates at temperatures up to 6O 0 C, des ⁇ semi it is to be used very effectively in the lower stages of MSF chambers to reduce the temperature differences.
- FIG. 2 shows the block diagram of a seawater desalination plant with a diesel generator DS, a heat pump WP and a few heat exchangers WT connected in the circuit.
- the heat exchanger WT are integrated in the liquid circulation of a cascade of cascade tanks K1, K2, Kn.
- the cascade container K1, K2, Kn are connected via pressure regulator DR with a vacuum pump VP, which generates the negative pressure for the evaporation of the seawater.
- the heat pump WP and the vacuum pump VP are operated by means of an energy station ES.
- the diesel generator DS generates the necessary electrical energy.
- the resulting heat energy is transferred via a heat exchanger WT to the liquid circuit for further heating of the seawater.
- the diesel generator DS can be coupled with systems for the use of solar energy and / or boil-off heat
- the invention is based on the additional heat transfer from the raw water by means of the heat pump WP to the water to be heated in the cascade sections K1, K2, Kn. This saves heating energy and significantly increases the efficiency of the process. Furthermore, the heat pump WP can be switched and coupled to heat exchangers WT in such a way that the residual energy contained in the pure water is removed. taken and introduced into the heating process of the seawater (see Fig. 2). Thus, the necessary cooling can be supported on the withdrawal side of the pure water. At the same time, the surplus energy is used to minimize the energy required to heat up the seawater through energy sources.
- the heat pump WP is coupled as a preferably multi-stage arrangement on réelletau ⁇ shear WT both on the energy extraction side with the piping system of the raw water (seawater) and with the line system of pure water.
- several heat pumps WP can be used.
- tube bundle heat exchangers can be used here in a particularly advantageous manner, which are provided with an efficient heat transferring filler. This makes possible an improved forwarding of the heat to be recovered.
- thermodynamic analysis The special effect of the system can be demonstrated by a thermodynamic analysis.
- the table according to FIG. 3 shows the thermodynamic analysis of an MSF cascade.
- the table shows the values for the thermodynamic analysis of an MSF cascade.
- the seawater temperature rises when passing through 10 cascade stages from 31 to 89 degrees C.
- the temperature increase from stage to stage is 5 - 6 degrees C.
- FIG. 4 shows the functional diagram of a heat pump.
- the heat pump is integrated as a per se known assembly in the field of seawater desalination plant. In this case, it is driven by the electric supply by means of a diesel generator. This can be part a combined heat and power plant.
- a station for power generation is designed as a diesel generator DS.
- FIG. 5 shows the functional diagram of a diesel generator DS.
- the diesel generator DS supplies the required heat energy for the operation of the MSF stages and the electric power for the heat pump WP, the vacuum pump VP and the entire system. This is thus, in addition to the required fuel, completely self-sufficient, and can also be operated away from developed areas.
- An extension of the seawater desalination system according to the invention results from heat pump arrangements.
- FIGS. 6 and 7 show the energy balance of such a system.
- FIG. 6 shows that the evaporation energy can be recovered from the condensation energy. The temperature increase necessary for the evaporation is applied by means of introduced evaporation energy. At the same time condensation energy is released again during the condensation of the pure water, whereby the temperature drops again. Although both processes take place at different temperature levels, the energy released can be used to replace the required energy.
- FIG. 7 this is utilized according to FIG. 7 in that a heat pump is integrated in the region of the discharge of the pure water via a heat exchanger (see FIG. 2). The energy obtained there can be introduced into the cascade section for heating the water to be evaporated.
- FIG. 7 shows the temperature reduction of the seawater via the cascade stages (condensation stages).
- the temperature of the pure water reached at the end of the cascade stages is further lowered via a heat exchanger of the heat pump.
- the amount of heat gained is introduced by means of the heat pump at an elevated temperature level in addition - and at the same time reduction - the necessary heating power for the evaporation wie ⁇ in the cascade stages.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2005284554A AU2005284554A1 (en) | 2004-09-17 | 2005-09-14 | Seawater desalination plant |
EP05785071A EP1791790A1 (de) | 2004-09-17 | 2005-09-14 | Meerwasserentsalzungsanlage |
DE112005002873T DE112005002873A5 (de) | 2004-09-17 | 2005-09-14 | Meerwasserentsalzungsanlage |
MX2007003302A MX2007003302A (es) | 2004-09-17 | 2005-09-14 | Instalacion de desalinacion de agua de mar. |
US11/662,861 US20080017498A1 (en) | 2004-09-17 | 2005-09-14 | Seawater Desalination Plant |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004045581.3 | 2004-09-17 | ||
DE102004045581 | 2004-09-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006029603A1 true WO2006029603A1 (de) | 2006-03-23 |
Family
ID=35285559
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2005/001608 WO2006029603A1 (de) | 2004-09-17 | 2005-09-14 | Meerwasserentsalzungsanlage |
Country Status (7)
Country | Link |
---|---|
US (1) | US20080017498A1 (de) |
EP (1) | EP1791790A1 (de) |
AU (1) | AU2005284554A1 (de) |
DE (1) | DE112005002873A5 (de) |
MX (1) | MX2007003302A (de) |
WO (1) | WO2006029603A1 (de) |
ZA (1) | ZA200702018B (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007010575A1 (de) | 2007-02-26 | 2008-11-20 | Joseph Wallers | Vorrichtung und Verfahren zur Meerwasserentsalzung |
DE102009031246A1 (de) | 2009-01-29 | 2010-08-05 | Peter Szynalski | Ein- oder mehrstufiger kombinierter Verdampfer und Kondensator für kleine Wasserentsalzungs-/-reinigungsmaschine |
WO2010151164A2 (en) * | 2009-06-18 | 2010-12-29 | S.C. Hellenic Tiler Invest Srl | Installation and procedure for water desalination |
DE102011004836A1 (de) | 2011-02-28 | 2012-08-30 | Gea Wiegand Gmbh | Vakuumpumpanlage und Prozessanlage mit einer Vakuumpumpanlage |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITAN20090009A1 (it) * | 2009-03-17 | 2010-09-18 | S Tra Te G I E S R L | Apparato per produzione autonoma almeno di acqua dolce da dissalazione marina. |
US20110048920A1 (en) * | 2009-08-28 | 2011-03-03 | Industrial Idea Partners, Inc. | Adsorbent - Adsorbate Desalination Unit and Method |
US20110132550A1 (en) * | 2009-12-09 | 2011-06-09 | Industrial Idea Partners, Inc. | Single Chamber Adsorption Concentrator |
NO20120734A1 (no) * | 2012-06-25 | 2013-12-26 | Vacuwatt As | Varmepumpeanlegg |
US9908059B2 (en) * | 2014-08-08 | 2018-03-06 | Michael Henry McGee | Desalination or water purification means, extremely low cost construction and operation |
US10987609B1 (en) * | 2018-02-11 | 2021-04-27 | John D. Walker | Polar-linear-fresnel-concentrating solar-thermal power and desalination plant |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2274564A1 (fr) * | 1974-06-17 | 1976-01-09 | Rigollot Georges | Installation pour la distillation de grandes quantites d'eau |
DE2837727A1 (de) * | 1978-08-30 | 1980-03-06 | Mohamed Ing Grad Jannoun | Meerwasserentsalzung und trinkwassergewinnung durch verdampfung mit hilfe einer gaswaermepumpe, angetrieben von einer verbrennungsmaschine |
DE2939694A1 (de) * | 1979-09-29 | 1981-04-09 | Helfried Dipl.-Phys. 8021 Icking Crede | Destillationsverfahren und vorrichtung zur durchfuehrung dieses verfahrens |
GB2369783A (en) * | 2000-10-21 | 2002-06-12 | Pb Power Ltd | Desalination process |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3637465A (en) * | 1969-08-06 | 1972-01-25 | James D Wilson | Distillation method having counterflow heat exchange with condensate |
US3869351A (en) * | 1973-11-09 | 1975-03-04 | Everett H Schwartzman | Evaporation system as for the conversion of salt water |
US4089744A (en) * | 1976-11-03 | 1978-05-16 | Exxon Research & Engineering Co. | Thermal energy storage by means of reversible heat pumping |
US4267022A (en) * | 1977-04-27 | 1981-05-12 | Pitcher Frederick L | Energy efficient process and apparatus for desalinizing water |
JPH03181302A (ja) * | 1989-12-12 | 1991-08-07 | Hitachi Ltd | 蒸留装置 |
-
2005
- 2005-09-14 AU AU2005284554A patent/AU2005284554A1/en not_active Abandoned
- 2005-09-14 EP EP05785071A patent/EP1791790A1/de not_active Withdrawn
- 2005-09-14 DE DE112005002873T patent/DE112005002873A5/de not_active Withdrawn
- 2005-09-14 US US11/662,861 patent/US20080017498A1/en not_active Abandoned
- 2005-09-14 MX MX2007003302A patent/MX2007003302A/es unknown
- 2005-09-14 WO PCT/DE2005/001608 patent/WO2006029603A1/de active Application Filing
-
2007
- 2007-03-07 ZA ZA200702018A patent/ZA200702018B/xx unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2274564A1 (fr) * | 1974-06-17 | 1976-01-09 | Rigollot Georges | Installation pour la distillation de grandes quantites d'eau |
DE2837727A1 (de) * | 1978-08-30 | 1980-03-06 | Mohamed Ing Grad Jannoun | Meerwasserentsalzung und trinkwassergewinnung durch verdampfung mit hilfe einer gaswaermepumpe, angetrieben von einer verbrennungsmaschine |
DE2939694A1 (de) * | 1979-09-29 | 1981-04-09 | Helfried Dipl.-Phys. 8021 Icking Crede | Destillationsverfahren und vorrichtung zur durchfuehrung dieses verfahrens |
GB2369783A (en) * | 2000-10-21 | 2002-06-12 | Pb Power Ltd | Desalination process |
Non-Patent Citations (2)
Title |
---|
MILOW B ET AL: "Advanced MED solar desalination plants. Configurations, costs, future seven years of experience at the Plataforma Solar de Almeria (Spain)", DESALINATION, ELSEVIER, AMSTERDAM, NL, vol. 108, no. 1, February 1997 (1997-02-01), pages 51 - 58, XP004053158, ISSN: 0011-9164 * |
SLESARENKO V V: "Heat pumps as a source of heat energy for desalination of seawater", DESALINATION, ELSEVIER, AMSTERDAM, NL, vol. 139, no. 1-3, 20 September 2001 (2001-09-20), pages 405 - 410, XP004320417, ISSN: 0011-9164 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007010575A1 (de) | 2007-02-26 | 2008-11-20 | Joseph Wallers | Vorrichtung und Verfahren zur Meerwasserentsalzung |
DE102009031246A1 (de) | 2009-01-29 | 2010-08-05 | Peter Szynalski | Ein- oder mehrstufiger kombinierter Verdampfer und Kondensator für kleine Wasserentsalzungs-/-reinigungsmaschine |
WO2010151164A2 (en) * | 2009-06-18 | 2010-12-29 | S.C. Hellenic Tiler Invest Srl | Installation and procedure for water desalination |
WO2010151164A3 (en) * | 2009-06-18 | 2011-03-24 | S.C. Hellenic Tiler Invest Srl | Installation and procedure for water desalination |
DE102011004836A1 (de) | 2011-02-28 | 2012-08-30 | Gea Wiegand Gmbh | Vakuumpumpanlage und Prozessanlage mit einer Vakuumpumpanlage |
Also Published As
Publication number | Publication date |
---|---|
EP1791790A1 (de) | 2007-06-06 |
US20080017498A1 (en) | 2008-01-24 |
DE112005002873A5 (de) | 2007-08-30 |
AU2005284554A1 (en) | 2006-03-23 |
ZA200702018B (en) | 2009-04-29 |
MX2007003302A (es) | 2007-10-02 |
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