WO2004067451A1 - Dispositif pour epurer de l'eau - Google Patents

Dispositif pour epurer de l'eau Download PDF

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Publication number
WO2004067451A1
WO2004067451A1 PCT/AT2004/000030 AT2004000030W WO2004067451A1 WO 2004067451 A1 WO2004067451 A1 WO 2004067451A1 AT 2004000030 W AT2004000030 W AT 2004000030W WO 2004067451 A1 WO2004067451 A1 WO 2004067451A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
carrier web
evaporator
condenser
water vapor
Prior art date
Application number
PCT/AT2004/000030
Other languages
German (de)
English (en)
Inventor
Rudolf Schober
Original Assignee
Rudolf Schober
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 Rudolf Schober filed Critical Rudolf Schober
Publication of WO2004067451A1 publication Critical patent/WO2004067451A1/fr

Links

Classifications

    • 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
    • B01D5/0033—Other features
    • B01D5/0039—Recuperation of heat, e.g. use of heat pump(s), compression
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/0094—Evaporating with forced circulation
    • 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
    • B01D3/34—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances
    • B01D3/343—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances the substance being a gas
    • B01D3/346—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances the substance being a gas the gas being used for removing vapours, e.g. transport gas
    • 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
    • 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

  • the invention relates to a device for cleaning water, in particular for desalting salt water, with an evaporator for the water to be cleaned and with a condenser for the water vapor downstream of the evaporator, the evaporator having at least one circulating textile carrier web for the water to be evaporated having.
  • heating elements for increasing the steam generation are provided in the known devices.
  • These heating elements can be used to heat either the carrier web (US 3,269,920 B) or the salt water (DE 1 792 134 A1), however, always cause a higher salt content of the condensed water, so that such devices are not suitable for producing drinking water with an absolutely low salt content. If these devices are nevertheless to be used to produce drinking water, then extensive post-treatment of the condensed water is necessary.
  • the invention is therefore based on the object of improving a device for purifying water, in particular for desalting salt water, of the type described at the outset in such a way that, despite high steam generation, the condensed water has a comparatively low degree of contamination.
  • the invention solves this problem in that the evaporator and the condenser are in a circuit for an air stream serving as a carrier for the water vapor, that the circulating carrier web is guided back and forth between deflection rollers and that the deflection rollers for the textile carrier web are in the flow direction of the air flow.
  • the steam generation can be increased with a slight increase in the water temperature, since the textile carrier web offers a comparatively large evaporation surface for the absorbed water to be cleaned. It is therefore possible to ensure a high evaporation rate and a high cleaning effect at a low water temperature. Complicated post-treatment of the condensed water can be omitted, which makes the device according to the invention particularly suitable for producing drinking water from salt water.
  • the dimension of the evaporator can be kept small, with the fact that with a running of the deflection rollers for the textile carrier web in the direction of flow of the air stream, both sides of the carrier web provide an evaporation surface for the form absorbed water. Because of the circulation of the air flow serving as a carrier for the water vapor via the evaporator and the condenser, the air flow that is dry after the condenser is again available for absorbing the water vapor from the evaporator, which creates particularly advantageous process conditions.
  • the textile carrier web has a surface structure, for example knobs, the evaporation surface and thus the steam generation can be increased or increased even further.
  • Surface structures with capillary action are also conceivable in order to convey the water absorbed by the carrier web to the outside of the carrier web for better evaporation.
  • the carrier web consists of a fiber fleece or a fiber felt, the suction effect of these materials can advantageously be used to absorb the water to be cleaned.
  • the carrier web can be passed through a container with a supply of water to be cleaned in a simple manner.
  • the carrier web is guided through squeeze rollers arranged at least once above a collecting trough, a concentration of the contaminants of the water to be cleaned during operation of the system can be avoided, since the concentrate remaining in the carrier web after the water has evaporated does not enter the container with the cleaning water is introduced.
  • a vacuum pump .. is connected in the air-tight circuit of the air flow to create a negative pressure, the generation of water vapor can thus be increased further.
  • the prerequisite is that the condensate is drawn off via an outlet pump and the water to be cleaned is supplied via an inlet throttle.
  • the carrier web can be exposed to UV radiation for sterilization. It can also ensure that no external contaminants can affect water purification.
  • FIG. 1 shows a block diagram of a device for desalination of salt water according to the invention
  • FIG. 2 shows a device according to the invention in a top view
  • FIG. 3 shows an enlarged top view of the partially opened evaporator
  • FIG. 4 shows a section along the line III-III of FIG. 3 ,
  • the device for desalting salt water 1 consists of an evaporator 2 and a condenser 3 arranged downstream of the evaporator 2, which are together in a circuit for an air stream 4 serving as a carrier for the water vapor.
  • a fan 5 is used to circulate the air stream 4.
  • the salt water 1 is evaporated in the evaporator 2 and the steam is condensed in the condenser 3, the condensate 6 being removed as drinking water.
  • a refrigerant circuit 7 with a compressor 8 is provided for cooling the air stream 4 saturated with water vapor.
  • the refrigerant compressed in the compressor 8 is cooled by expansion with the aid of a throttle 9, and ensures in the condenser 3 that the water vapor carried in the air flow -4 condenses.
  • the heat absorbed by the refrigerant from the steam can be used to heat the salt water 1 and / or the air flow 4.
  • a heat exchanger 10 for the salt water 1 and a heat exchanger 11 for the air flow 4 are provided, the heat exchangers 10 and 11 being able to be acted upon in accordance with the requirements via a valve 12.
  • the device according to FIG. 2 has a housing 14 which forms a flow channel 13 for the air flow 4 and which accommodates the evaporator 2 and the condenser 3. As can be seen in particular from FIGS.
  • the evaporator 2 comprises an endlessly circulating carrier web 15, which is guided back and forth in a meandering manner in the evaporator by deflecting rollers 16 running in the flow direction of the air stream 4, and preferably made of a nonwoven or felt consists.
  • the evaporator 2 forms a container 17 for the salt water 1 in the lower region, a portion of the deflection rollers 16 being immersed in the salt water 1 for sucking up the salt water 1 from the carrier web 15.
  • a container 18 for the brine remaining in the carrier web 15 after the evaporation of the salt water 1 connects to the container 17.
  • squeeze rollers 19 parallel to the deflection rollers 16 are arranged above the collecting trough 18.
  • the condenser 3 is designed as a heat exchanger which is acted upon by the refrigerant of the refrigerant circuit 7 which has been expanded and cooled in the process after the compression by the compressor 8.
  • the water condensing from the air flow 4 due to the cooling is collected in a collecting trough 20 arranged below the condenser 3 and can be removed via a drain tap 21.
  • the air stream 4 dried by the condensation of the water vapor is conveyed via a fan 22 through a heat exchanger 23 which is connected to the refrigerant circuit 7 and is acted upon by the heat absorbed by the refrigerant when the steam cools down.
  • the salt water 1 can also be preheated via the refrigerant circuit 7, as is indicated in FIG. 1, but which is not shown in FIG. 2 for reasons of clarity.
  • the heated air stream 4 is fed back to the evaporator 2 via the fan 5, where it absorbs water vapor in order to feed it to the condenser 3. So that the condenser 3 can be evenly charged with the air flow 4 and thus with the absorbed water vapor, 3 baffles 24 are arranged in the flow channel 13 between the evaporator 2 and the condenser.
  • the housing 14 can be connected to a vacuum pump 25.
  • the housing 14 is to be made airtight at least in the region of the air flow 4. This means, for the removal of the condensed water 6, that the drip pan 20 must be connected to an outlet pump via the drain tap 21.
  • the inlet 26 for the salt water is to be provided with an inlet throttle in order to be able to maintain the negative pressure in the housing 14.
  • a pump connection is not necessary for the drain cock 27 for the collecting basin 18 of the brine if the brine is not to be continuously withdrawn.
  • disinfection can be carried out in the region of the carrier web 15, for example by means of UV radiation.
  • a corresponding radiation source is indicated by dash-dotted lines in FIG. 4 and provided with the reference symbol 28.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Road Repair (AREA)
  • Recrystallisation Techniques (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)

Abstract

L'invention concerne un dispositif pour épurer de l'eau, en particulier pour dessaler de l'eau salée (1). Ce dispositif comprend un évaporateur (2) servant à évaporer l'eau à épurer, ainsi qu'un condensateur (3) monté en aval de cet évaporateur (2) et servant à condenser la vapeur d'eau. Ledit évaporateur (2) comprend au moins une bande support rotative (15) en matière textile destinée à supporter l'eau à évaporer. Selon l'invention, pour permettre l'obtention de conditions avantageuses, l'évaporateur (2) et le condensateur (3) sont placés dans un circuit pour un flux d'air (4) servant de support à la vapeur d'eau, la bande support rotative (15) est guidée sous forme de méandres entre des rouleaux de déviation (16) et lesdits rouleaux de déviation (16) pour la bande support rotative (15) s'étendent dans le sens d'écoulement du flux d'air (4).
PCT/AT2004/000030 2003-01-27 2004-01-27 Dispositif pour epurer de l'eau WO2004067451A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA107/2003 2003-01-27
AT1072003 2003-01-27

Publications (1)

Publication Number Publication Date
WO2004067451A1 true WO2004067451A1 (fr) 2004-08-12

Family

ID=32777509

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT2004/000030 WO2004067451A1 (fr) 2003-01-27 2004-01-27 Dispositif pour epurer de l'eau

Country Status (2)

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IT (1) ITMI20040041U1 (fr)
WO (1) WO2004067451A1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011028853A1 (fr) * 2009-09-04 2011-03-10 Massachusetts Institute Of Technology Séparation d'eau sous pression réduite
DE102010022448A1 (de) * 2010-06-01 2011-12-01 Jürgen Henning Verfahren und Vorrichtung für die Gewinnung von destiliertem Wasser aus kontaminiertem Wasser
US8110610B2 (en) 2006-12-21 2012-02-07 Agfa Graphics N.V. Amine co-initiators for radiation curable compositions
WO2012112359A1 (fr) * 2011-02-15 2012-08-23 Massachusetts Institute Of Technology Système d'épuration d'eau à énergie thermique à haut rendement
US8338499B2 (en) 2006-12-21 2012-12-25 Agfa Graphics Nv Amine co-initiators for radiation curable compositions
US9079119B2 (en) 2013-01-28 2015-07-14 King Fahd University Of Petroleum And Minerals Flexible belt evaporator
WO2016143848A1 (fr) * 2015-03-10 2016-09-15 株式会社ワンワールド Appareil de génération d'eau douce
US9981860B2 (en) 2015-05-21 2018-05-29 Gradiant Corporation Production of ultra-high-density brines using transiently-operated desalination systems
US10143936B2 (en) 2015-05-21 2018-12-04 Gradiant Corporation Systems including an apparatus comprising both a humidification region and a dehumidification region with heat recovery and/or intermediate injection
US10294123B2 (en) 2016-05-20 2019-05-21 Gradiant Corporation Humidification-dehumidification systems and methods at low top brine temperatures
WO2021018331A1 (fr) 2019-07-27 2021-02-04 Hochschule Wismar Moyen de chauffage destiné à augmenter la vitesse d'évaporation d'eau pour des évaporateurs d'eau thermiques et solaires

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB461875A (en) * 1935-06-06 1937-02-25 Paul Alfred Barreau Plant for treating salt water
US3210260A (en) * 1962-05-14 1965-10-05 Foster Wheeler Corp Apparatus for distillation of saline water to produce fresh water
US4940134A (en) * 1986-04-04 1990-07-10 Konishiroku Photo Industry Co., Ltd. Waste solution treatment method and apparatus therefor
US5256298A (en) * 1992-04-22 1993-10-26 Powell Paul E Continuous-belt separator/reactor and method
DE4340745A1 (de) * 1993-11-30 1995-06-01 Dietrich Dr Jung Verfahren und Vorrichtung zur Gewinnung von Brauchwasser aus verunreinigten Wässern
GB2330779A (en) * 1997-10-29 1999-05-05 Alan Roy Filewood Desalination of water
WO2000075078A1 (fr) * 1999-06-08 2000-12-14 B.G. Negev Technologies And Applications Ltd. Dispositif d'evaporation

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB461875A (en) * 1935-06-06 1937-02-25 Paul Alfred Barreau Plant for treating salt water
US3210260A (en) * 1962-05-14 1965-10-05 Foster Wheeler Corp Apparatus for distillation of saline water to produce fresh water
US4940134A (en) * 1986-04-04 1990-07-10 Konishiroku Photo Industry Co., Ltd. Waste solution treatment method and apparatus therefor
US5256298A (en) * 1992-04-22 1993-10-26 Powell Paul E Continuous-belt separator/reactor and method
DE4340745A1 (de) * 1993-11-30 1995-06-01 Dietrich Dr Jung Verfahren und Vorrichtung zur Gewinnung von Brauchwasser aus verunreinigten Wässern
GB2330779A (en) * 1997-10-29 1999-05-05 Alan Roy Filewood Desalination of water
WO2000075078A1 (fr) * 1999-06-08 2000-12-14 B.G. Negev Technologies And Applications Ltd. Dispositif d'evaporation

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8110610B2 (en) 2006-12-21 2012-02-07 Agfa Graphics N.V. Amine co-initiators for radiation curable compositions
US8338499B2 (en) 2006-12-21 2012-12-25 Agfa Graphics Nv Amine co-initiators for radiation curable compositions
WO2011028853A1 (fr) * 2009-09-04 2011-03-10 Massachusetts Institute Of Technology Séparation d'eau sous pression réduite
US8292272B2 (en) 2009-09-04 2012-10-23 Massachusetts Institute Of Technology Water separation under reduced pressure
US8465006B2 (en) 2009-09-04 2013-06-18 Massachusetts Institute Of Technology Separation of a vaporizable component under reduced pressure
DE102010022448A1 (de) * 2010-06-01 2011-12-01 Jürgen Henning Verfahren und Vorrichtung für die Gewinnung von destiliertem Wasser aus kontaminiertem Wasser
WO2012112359A1 (fr) * 2011-02-15 2012-08-23 Massachusetts Institute Of Technology Système d'épuration d'eau à énergie thermique à haut rendement
US8647477B2 (en) 2011-02-15 2014-02-11 Massachusetts Institute Of Technology High-efficiency thermal-energy-driven water purification system
US9079119B2 (en) 2013-01-28 2015-07-14 King Fahd University Of Petroleum And Minerals Flexible belt evaporator
CN107428561A (zh) * 2015-03-10 2017-12-01 株式会社同世界 淡水生成装置
WO2016143848A1 (fr) * 2015-03-10 2016-09-15 株式会社ワンワールド Appareil de génération d'eau douce
JPWO2016143848A1 (ja) * 2015-03-10 2018-02-08 株式会社ワンワールド 真水生成装置
EP3269686A4 (fr) * 2015-03-10 2018-09-12 Oneworld Corporation Appareil de génération d'eau douce
US10625174B2 (en) 2015-03-10 2020-04-21 Oneworld Corporation Fresh-water generating apparatus
CN107428561B (zh) * 2015-03-10 2021-04-02 株式会社同一世界 淡水生成装置
US9981860B2 (en) 2015-05-21 2018-05-29 Gradiant Corporation Production of ultra-high-density brines using transiently-operated desalination systems
US10143936B2 (en) 2015-05-21 2018-12-04 Gradiant Corporation Systems including an apparatus comprising both a humidification region and a dehumidification region with heat recovery and/or intermediate injection
US10479701B2 (en) 2015-05-21 2019-11-19 Gradiant Corporation Production of ultra-high-density brines using transiently-operated desalination systems
US11084736B2 (en) 2015-05-21 2021-08-10 Gradiant Corporation Production of ultra-high-density brines using transiently-operated desalination systems
US10294123B2 (en) 2016-05-20 2019-05-21 Gradiant Corporation Humidification-dehumidification systems and methods at low top brine temperatures
WO2021018331A1 (fr) 2019-07-27 2021-02-04 Hochschule Wismar Moyen de chauffage destiné à augmenter la vitesse d'évaporation d'eau pour des évaporateurs d'eau thermiques et solaires

Also Published As

Publication number Publication date
ITMI20040041U1 (it) 2004-05-06

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