WO2010106565A1 - Appareil pour produire indépendamment au moins de l'eau douce par dessalement d'eau de mer - Google Patents

Appareil pour produire indépendamment au moins de l'eau douce par dessalement d'eau de mer Download PDF

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Publication number
WO2010106565A1
WO2010106565A1 PCT/IT2010/000106 IT2010000106W WO2010106565A1 WO 2010106565 A1 WO2010106565 A1 WO 2010106565A1 IT 2010000106 W IT2010000106 W IT 2010000106W WO 2010106565 A1 WO2010106565 A1 WO 2010106565A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
vaporizers
water
heat
sea water
Prior art date
Application number
PCT/IT2010/000106
Other languages
English (en)
Inventor
Carlo Maria Bartolini
Original Assignee
S.Tra.Te.G.I.E. S.R.L.
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 S.Tra.Te.G.I.E. S.R.L. filed Critical S.Tra.Te.G.I.E. S.R.L.
Publication of WO2010106565A1 publication Critical patent/WO2010106565A1/fr

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/0011—Heating features
    • B01D1/0041—Use of fluids
    • B01D1/0047—Use of fluids in a closed circuit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/0011—Heating features
    • B01D1/0058—Use of waste energy from other processes or sources, e.g. combustion gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/0082—Regulation; Control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/02—Evaporators with heating coils
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0057—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes
    • B01D5/006—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes with evaporation or distillation
    • B01D5/0066—Dome shaped condensation
    • 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
    • C02F1/048—Purification of waste water by evaporation
    • 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
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/03—Pressure
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/42—Liquid level
    • 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

Definitions

  • Apparatus for independent production nf at least fresh water through desalination of sea water
  • This present invention refers in general to processes for production of fresh water by desalination of sea water; it applies to an apparatus for independent desalination.
  • the invention is indicated for, but not limited to, installation aboard seafaring craft and may be combined with an electrical generator so as to provide the vessel itself with a supply of both fresh water and electrical power.
  • a primary object of the invention is to desalinate sea water with an original and innovative apparatus suitable to start the desalination process, by exploiting some of the heat generated by operation of the vessel's engine.
  • Simplification of the apparatus's physical structure will obviously reduce plant and running costs, with a positive effect also on the reliability of the apparatus which, in the seafaring sector, is a crucial safety feature.
  • a further object of the invention is to provide an energy source, to combine with or replace the main propulsion engine, for powering desalination. This would be a basic, reliable and inexpensive auxiliary engine that could also be used for combined generation ofelectrical power.
  • An additional object of the invention is to provide a very quiet auxiliary engine, which could be operated at any time of day without disturbing any members of the crew or passengers on nearby craft.
  • the invention has technical characteristics, in line with such objects, that clearly result from the content of the patent claims reported below, in particular claim 1, and from any directly or indirectly dependent claims. Rrief description nf the drawings
  • figure 2 illustrates some details of the apparatus shown in figure 1.
  • figure 1 shows an apparatus 1 for independent production of fresh water through desalination of sea water, preferably for but not limited to use on seafaring craft.
  • Apparatus 1 essentially includes an airtight container 2, kept under vacuum by appropriate suction means 3 and containing vaporizers 4 suitable to receive heat from an external heat source 6, at high temperature; condenser means 7 for transferring heat to an external heat source 5, at low temperature; a collection tank 8.
  • Container 2 is supplied with sea water which, on contact with the vaporizers 4, vaporizes, then reaches condenser means 7 in vapour form, where it condenses and then, with salt removed, is collected in collection tank 8.
  • container 2 comprises an elongated hollow cylinder 21 , closed at each end by two caps 10, which assumes a vertical position when in use.
  • Caps 10 are flanged and can be coupled to flanges 22 connecting cylinder 21 hermetically but with a removable coupling, so that they can be removed from cylinder 21 for inspecting the inside of container 2.
  • Container 2 is kept under vacuum by said suction means 3, which for this purpose are fitted with a vacuum pump 9 installed near the top of container 2.
  • the vacuum pump 9 will create an absolute pressure in the container 2 for achieving vaporization of sea water heated to a suitable temperature by the vaporizers 4.
  • the vaporizers 4 are installed at the lower edge of container 2. They include a heat exchanger 12, which operates between the high-temperature heat source 6 and the lower inner part of container 2, which contains a section of coiled pipe 23 that is part of the heat exchanger 12.
  • the heat exchanger 12 conveys a heat carrying fluid consisting of a mixture of glycol and water that is heated as it crosses the heat source 6, then transfers most of the heat acquired to the vaporizers 4. The latter, in turn, heat the sea water to a temperature at which it will evaporate at an absolute pressure of approximately 0.07-0.20 bar; this pressure can be maintained using the vacuum pump 9 inside container 2.
  • the condenser means 7 include a heat exchanger 11 , fitted with a copper pipe coil 24 conveying heat carrying fluid, cooled by an external low-temperature source 5, activated by the sea water itself. This is directly drawn from the sea by pump 25, then channelled into a cross-flow heat exchanger 26 and later discharged back into the sea.
  • the heat exchanger 11 also contains a heat carrying fluid made up of water and glycol. The mixture circulating in the heat exchanger 11 is heated inside container 2, drawing heat from the condensing water vapour, conveyed through coil 24. After transiting the cross-flow heat exchanger 26, the water and glycol mixture cools and returns to coil 24, circulating continuously in heat exchanger 11.
  • Figure 1 shows that the vacuum pump 9 is fitted with a suction point 27 for container 2, very near to condenser means 7. This was designed to minimize risks that pump 9 might aspirate uncondensed vapours that can affect correct operation.
  • Apparatus 1 can exploit the exhaust heat of the craft engine as a high-temperature heat source 6 for the heating fluid circulating in heat exchanger 12.
  • a preferred embodiment suggests the use of an independent, external combustion, thermal engine 13 (diesel if possible), suitable for driving an electrical power generator for charging up conventional accumulator batteries fitted in the craft.
  • apparatus 1 is fitted with sensor means 15 (minimum, maximum) for reading the immersion level of vaporizers 4 in the sea water held inside container 2; sensor means 16 for reading the level of desalinated water inside collection tank 8; lastly, pumping means 17 connected to collection tank 8, to remove desalinated water from container 2.
  • sensor means 15 minimum, maximum
  • sensor means 16 for reading the immersion level of vaporizers 4 in the sea water held inside container 2
  • sensor means 16 for reading the level of desalinated water inside collection tank 8
  • pumping means 17 connected to collection tank 8, to remove desalinated water from container 2.
  • Apparatus 1 finally, also fits automatic operating control means 18.
  • Said control means 18 - in the event of excess liquid being notified by the sea water level sensor means 15 in container 2 - order closure of the actuator 19, which controls sea water supply to container 2. They also order deactivation of suction means 3 for container 2, and control an actuator 20 that releases the container 2 vacuum, activated in particular by a 3-way valve.
  • Apparatus 1 use and operation can be described as follows: the air aspirated at a temperature Taa is preheated by an exchanger 28 with the exhaust fumes from the engine 13.
  • This air, mixed with fuel, will thensupply thermal engine 13.
  • the heat from the exhaust fumes of the thermal engine 13, at the exit of the exchanger 28 at temperature T3, is sent to a compact cross-flow (air/water) heat exchanger 29 containing the same solution (water-glycol at 30%) used to cool the engine 13.
  • the solution, when passing through the engine 13, acquires heat, which added to that recovered from the exhaust fumes provides considerable thermal power that can be used to desalinate sea water.

Abstract

Appareil (1) pour produire indépendamment au moins de l'eau douce par dessalement d'eau de mer, comprenant un récipient (2) étanche à l'air, maintenu sous vide à une pression inférieure à la pression atmosphérique par un moyen (3) d'aspiration approprié et contenant des vaporiseurs (4) aptes à recevoir de la chaleur d'une source externe (6) de chaleur; un moyen (7) de condenseur apte à transférer de la chaleur vers une source externe (5) de chaleur; une cuve (8) de récupération. Le récipient (2) est alimenté en eau de mer, qui se vaporise au contact des vaporiseurs (4), s'écoule sous forme de vapeur jusqu'au moyen (7) de condenseur, où elle se condense, puis s'accumule dans la cuve (8) de récupération.
PCT/IT2010/000106 2009-03-17 2010-03-12 Appareil pour produire indépendamment au moins de l'eau douce par dessalement d'eau de mer WO2010106565A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITAN2009A000009 2009-03-17
IT000009A ITAN20090009A1 (it) 2009-03-17 2009-03-17 Apparato per produzione autonoma almeno di acqua dolce da dissalazione marina.

Publications (1)

Publication Number Publication Date
WO2010106565A1 true WO2010106565A1 (fr) 2010-09-23

Family

ID=41131744

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2010/000106 WO2010106565A1 (fr) 2009-03-17 2010-03-12 Appareil pour produire indépendamment au moins de l'eau douce par dessalement d'eau de mer

Country Status (2)

Country Link
IT (1) ITAN20090009A1 (fr)
WO (1) WO2010106565A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2516827A (en) * 2013-07-30 2015-02-11 Aquaswiss Ag Evaporation-condensation desalination with a low temperature heat sink
EP2709957A4 (fr) * 2011-05-16 2015-12-30 Marvin Pierre Dispositif et procédé de dessalement hydraulique
US9478917B2 (en) 2011-08-10 2016-10-25 Ellenberger & Poensgen Gmbh Mechatronic plug-in connector system
US10676373B2 (en) * 2015-01-05 2020-06-09 Husham Al-Ghizzy Thermal utilization system and methods

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1177819A (en) * 1967-04-13 1970-01-14 E Lowe Mcintyre Jr Production of Fresh Water from Salt Water Aboard Watercraft
GB1234446A (fr) * 1967-07-26 1971-06-03
US4664751A (en) * 1982-04-27 1987-05-12 Nautical Services Pty. Ltd. De-salinator for brackish salt water
WO2003095802A1 (fr) * 2002-05-14 2003-11-20 Efthimios Angelopoulos Centrale combinant dessalement et production hydroelectrique
FR2890650A1 (fr) * 2005-09-12 2007-03-16 Emile Weisman Dispositif de dessalement sous vide de l'eau de mer
US20080017498A1 (en) * 2004-09-17 2008-01-24 Peter Szynalski Seawater Desalination Plant

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1177819A (en) * 1967-04-13 1970-01-14 E Lowe Mcintyre Jr Production of Fresh Water from Salt Water Aboard Watercraft
GB1234446A (fr) * 1967-07-26 1971-06-03
US4664751A (en) * 1982-04-27 1987-05-12 Nautical Services Pty. Ltd. De-salinator for brackish salt water
WO2003095802A1 (fr) * 2002-05-14 2003-11-20 Efthimios Angelopoulos Centrale combinant dessalement et production hydroelectrique
US20080017498A1 (en) * 2004-09-17 2008-01-24 Peter Szynalski Seawater Desalination Plant
FR2890650A1 (fr) * 2005-09-12 2007-03-16 Emile Weisman Dispositif de dessalement sous vide de l'eau de mer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2709957A4 (fr) * 2011-05-16 2015-12-30 Marvin Pierre Dispositif et procédé de dessalement hydraulique
US9478917B2 (en) 2011-08-10 2016-10-25 Ellenberger & Poensgen Gmbh Mechatronic plug-in connector system
GB2516827A (en) * 2013-07-30 2015-02-11 Aquaswiss Ag Evaporation-condensation desalination with a low temperature heat sink
US10676373B2 (en) * 2015-01-05 2020-06-09 Husham Al-Ghizzy Thermal utilization system and methods

Also Published As

Publication number Publication date
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