DK143269B - SEA DISPOSAL DEVICE - Google Patents
SEA DISPOSAL DEVICE Download PDFInfo
- Publication number
- DK143269B DK143269B DK377473AA DK377473A DK143269B DK 143269 B DK143269 B DK 143269B DK 377473A A DK377473A A DK 377473AA DK 377473 A DK377473 A DK 377473A DK 143269 B DK143269 B DK 143269B
- Authority
- DK
- Denmark
- Prior art keywords
- section
- basin
- seawater
- evaporators
- film evaporators
- Prior art date
Links
Classifications
-
- 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)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/26—Multiple-effect evaporating
-
- 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
- C02F1/08—Thin film 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
-
- 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
Landscapes
- Chemical & Material Sciences (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)
- Chemical Kinetics & Catalysis (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Processing Of Terminals (AREA)
Description
( (19) DANMARK \fia>((19) DENMARK \ via>
|p (12) FREMLÆGGELSESSKRIFT an 143269 B| p (12) PUBLICATION NOTICE and 143269 B
DIREKTORATET FOR PATENT- OG VAREMÆRKEVÆSENETDIRECTORATE OF THE PATENT AND TRADEMARKET SYSTEM
(21) Ansøgning nr. 377V73 (51) IntCI* C 02 F 1/08 (22) indleveringsdag 6. jul. 1973 (24) Løbedag 6. jul. 1973 (41) Aim. tilgængelig 8. jan. 197^ (44) Fremlagt 3· aug. 1981 (86) International ansøgning nr. -(86) International indleveringsdag “ (85) Videreførelsesdag - (62) Stamansøgning nr. -(21) Application No. 377V73 (51) IntCI * C 02 F 1/08 (22) filing date 6 Jul. 1973 (24) Race day 6 Jul. 1973 (41) Aim. available Jan 8 197 ^ (44) Presented 3 Aug. 1981 (86) International Application No. - (86) International Filing Day “(85) Continuation Day - (62) Master Application No. -
(30) Prioritet 7· jul. 1972, 26732/72, IT(30) Priority 7 Jul. 1972, 26732/72, IT
(71) Ansøger SNAM PROGETTI S.P.A., Milano, IT.(71) Applicant SNAM PROGETTI S.P.A., Milan, IT.
(72) Opfinder Giorgio Paganl, IT.(72) Inventor Giorgio Paganl, IT.
(74) Fuldmægtig Internationalt Patent-Bureau.(74) International Patent Bureau.
(54) Apparat til afsaltning af havvand.(54) Seawater desalination apparatus.
Opfindelsen angår et apparat til afsaltning af havvand bestående af en lodret anbragt kolonne delt i flere cylindriske sektioner.The invention relates to a seawater desalination apparatus consisting of a vertically arranged column divided into several cylindrical sections.
Afsaltning af havvand kan udføres ved hjælp af varme efter ® følgende processer: 1. Multiflash processen, N 2. flerlegeme-processen.Desalination of seawater can be carried out by heat following ® the following processes: 1. The multiflash process, N 2. the multi-body process.
Ό 3- Multiflash-processen er i det væsentlige baseret på fler- ^ trinsinddampning af en strøm af saltvand ved gradvis faldende tryk i et temperaturområde, der sædvanligvis ligger mellem 130 og 20°C, O De i hvert enkelt flashtrin udviklede dampe kondenseres på en overflade, der køles af strømmen af koldt saltvand, og udgør udbyttet af ferskvand.The 3- Multiflash process is essentially based on multi-stage evaporation of a stream of saline at gradually decreasing pressure in a temperature range usually between 130 and 20 ° C. The vapors developed in each flash step are condensed on a surface which is cooled by the flow of cold saline and constitutes the yield of fresh water.
143269 2143269 2
Saltvandet opvarmes yderligere, før det går til flashzonen, sædvanligvis med lavtryksdamp.The saline is further heated before going to the flash zone, usually with low pressure steam.
Flerlegeme-destillationsprocessen er baseret på det modsatte, velkendte princip fordampning og påfølgende kondensering: den i et trin producerede damp føres til kondensering i det følgende trin til frembringelse af damp på et lavere termisk niveau osv. i alle de andre trin. Fremgangsmåderne til fieriegerne-destillation kan afvige fra det grundlæggende princip med hensyn til metoderne til forvarmning af fødeblandingen og genvindingen af den i effluenterne indeholdte varme, nemlig ved: 1. Medstrømsfødning, hvori fødeblandingen opvarmes trin for trin med kondenserende damp og føres ind i det trin, der har den højeste temperatur. Den opløsning, der skal inddampes, flyder i samme retning som den kondenserende damp.The multi-body distillation process is based on the opposite, well-known principle of evaporation and subsequent condensation: the steam produced in one step is condensed in the following step to produce steam at a lower thermal level, etc. in all the other stages. The distillation distillation methods may differ from the basic principle of the methods for preheating the feed mixture and recovering the heat contained in the effluents, namely: that has the highest temperature. The solution to be evaporated flows in the same direction as the condensing vapor.
2. Modstrømsfødning, hvori fødeblandingen indføres kold i det trin, der har den laveste temperatur, og ved hjælp af en pumpe sendes til de følgende trin. Den opløsning, der skal koncentreres, flyder i modsat retning af den kondenserende damp, dvs. at der til fordampning af opløsningen i første trin anvendes damp, der kommer fra det foregående trin osv., bortset fra sidste trin, hvor der anvendes direkte damp.2. Countercurrent feeding, in which the feed mixture is introduced cold in the lowest temperature stage and sent by a pump to the following steps. The solution to be concentrated flows in the opposite direction of the condensing vapor, viz. that vapor is used for evaporation of the solution in the first step, steam coming from the previous step, etc., except for the last step where direct steam is used.
I 60'erne studerede "the Office Saline Water" i USA en speciel type flerlegeme-afsaltningsapparat, ejendommeligt ved anvendelse af lodrette filminddampere (VTE: Vertical Tube Evaporators - lodrette rørinddampere), der fødes i medstrømssekvens eller i blandet sekvens, medstrøm og modstrøm.In the 1960s, "the Office Saline Water" in the United States studied a special type of multi-body desalination device, peculiar to vertical film evaporators (VTEs), fed in co-current or mixed-sequence, co-current and countercurrent.
Opfindelsen forklares nærmere under henvisning til tegningen , hvor fig. 1 viser et afsaltningsapparat af kendt art med lodrette rørinddampere og omfattende fire inddampningslegemer, der fødes med modstrømsfødning, og hvori inddamperne er af filmtypen, fig. 2 et flerlegeme-destillationsapparat ifølge opfindelsen, og fig. 3 et tværsnit i en i apparatet i fig. 2 anvendt kolonne.The invention is explained in more detail with reference to the drawing, in which fig. 1 shows a desalination apparatus of known kind with vertical tube evaporators and comprising four evaporator bodies fed with countercurrent feed and in which the evaporators are of the film type; FIG. 2 is a multi-body distillation apparatus according to the invention; and FIG. 3 is a cross-sectional view of the apparatus of FIG. 2 column used.
I anlægget i fig. 1 forvarmes havvand 1 i trin 2, 3, 4 og 5 med kondenserende damp og går dernæst ind i første legeme 6, hvor der tilføres varme ved hjælp af damp 7, der kommer udefra; den på denne måde producerede damp passerer delvis 9 videre til det efterfølgende legeme og delvis 8 til den tilsvarende kondensa- 3 143269 tor, der forvarmer havvandet. Det fra kondensatoren 5 kommende kondensat får lov til at ekspandere i en beholder 10; to strømme kommer ud fra denne beholder: en væskestrøm, som føres ind i en beholder 13 gennem 14 og en dampstrøm 11, som forenes med den dampstrøm 9, der kommer fra første legeme. Den samlede dampstrøm er angivet ved 12.In the system of FIG. 1, seawater 1 in steps 2, 3, 4 and 5 is preheated with condensing steam and then enters first body 6, where heat is supplied by steam 7 coming from outside; the steam thus produced passes in part 9 to the subsequent body and in part 8 to the corresponding condenser which heats the seawater. The condensate coming from capacitor 5 is allowed to expand in a container 10; two streams emerge from this container: a liquid stream which is fed into a container 13 through 14 and a vapor stream 11 which joins the vapor stream 9 coming from the first body. The total vapor flow is given at 12.
Driften af de øvrige legemer er den samme, I sidste trin sluttes dampstrømmen 17 til et vakuumsystem 18, f.eks. en barometrisk kondensator, en væskeringspumpe eller en vakuumpumpe.The operation of the other bodies is the same. In the last step, the steam stream 17 is connected to a vacuum system 18, e.g. a barometric capacitor, a liquid ring pump or a vacuum pump.
Saltopløsningen kommer ud gennem 20, medens det ferske vand udtages gennem 19. Saltopløsningen 15 overføres fra det første legeme til det andet ved hjælp af en pumpe 16, idet den geodætiske niveauforskel er højere end det tilgængelige trykfald.The salt solution comes out through 20, while the fresh water is taken out through 19. The salt solution 15 is transferred from the first body to the second by means of a pump 16, the geodetic level difference being higher than the available pressure drop.
Fordelene ved denne fremgangsmåde i sammenligning med multi-flash-processen er følgende (nogle af disse fordele er typiske for flerlegemedrift): - Den største saltkoncentration forekommer kun i den koldeste del; dette faktum gør det muligt at nå en koncentrationsfaktor på ca. 3 (-100 g salt/1) uden saltafsættelse, medens man i multi- flash-processen ikke kan overskride en koncentrationsfaktor på ca.The advantages of this approach compared to the multi-flash process are the following (some of these benefits are typical of multi-drug delivery): - The highest salt concentration occurs only in the coldest part; this fact makes it possible to reach a concentration factor of approx. 3 (-100 g salt / 1) without salt deposition, while in the multi-flash process a concentration factor of approx.
2. Med koncentrationsfaktor menes forholdet mellem slutkoncentrationen og begyndelseskoncentrationen for det i vand opløste salt. Følgelig nedsættes strømningshastigheden for fødeblandingen, havvand, med ca. 1/3 for flerlegeme-processen.2. By concentration factor is meant the ratio of the final concentration to the initial concentration of the water dissolved salt. Accordingly, the flow rate of the feed mixture, seawater, is reduced by approx. 1/3 for the multi-body process.
- Forholdet saltvand/f remstillet ferskvand er 1,5 for flerlegeme-processen, medens det forøges til 7,5 i multiflash-processen på grund af recirkuleringen af det meste af det koncentrerede saltvand. På grund af den lavere strømningshastighed er antallet af trin i en flerlegeme-proces ca. 1/3 af trinantallet i en multi-flash-proces med samme varmeforbrug.- The ratio of saline / fresh water is 1.5 for the multi-body process, while it is increased to 7.5 in the multiflash process due to the recirculation of most of the concentrated saline. Due to the lower flow rate, the number of steps in a multi-body process is approx. 1/3 of the step number in a multi-flash process with the same heat consumption.
- Mindre hydrauliske problemer og mindre energiforbrug på grund af de lavere væskestrømningshastigheder.- Less hydraulic problems and less energy consumption due to the lower fluid flow rates.
- Mulighed for opnåelse af større varmevekslingskoefficienter i filminddamperne i sammenligning med de koefficienter, der opnås i kondensatorerne i multiflash-processen.- Possibility of obtaining larger heat exchange coefficients in the film evaporators compared to the coefficients obtained in the capacitors in the multiflash process.
Større temperaturdifferens (ΔΤ), der er anvendelig til varmeoverførsel, enten til et lavere antal trin eller til konstant temperatur for den fordampende film, idet der arbejdes uden trykfald.Greater temperature difference (ΔΤ) applicable for heat transfer, either to a lower number of steps or to constant temperature of the evaporating film, operating without pressure drop.
143269 4143269 4
Ulemperne er i det væsentlige af teknisk art, forbundet med udviklingen af det vandrette anlæg (behov for pumper til transport af saltvand fra ét trin til det følgende og behov for store rør til damppassage).The disadvantages are essentially of a technical nature, associated with the development of the horizontal system (need for pumps for transporting salt water from one stage to the next and need for large pipes for steam passage).
Det gør, at anlægget ikke er særligt konkurrencedygtigt i sammenligning med det tilsvarende multiflash-anlæg.This means that the system is not very competitive in comparison with the corresponding multiflash system.
Fra svensk fremlæggelseskrift nr. 347 877 kendes der et flerlegeme-destillationsapparat omfattende en lodret kolonne, der er delt i flere cylindriske sektioner, og hvor filminddamperne udfylder hele kolonnens tværsnit, og det koncentrerede havvand flyder i kontakt med kolonnevæggene, som derfor må beskyttes mod korrosion med tilsvarende højere udgift til følge. Endvidere fødes hvert enkelt trin i det kendte apparat med havvand, der er blevet forvarmet i et lavere trin, så at der også i trin med høj temperatur er en meget høj koncentrationsfaktor med deraf følgende udfældningsproblemer.Swedish Patent Specification No. 347 877 discloses a multi-body distillation apparatus comprising a vertical column divided into several cylindrical sections, wherein the film evaporators fill the entire column cross-section and the concentrated seawater flows in contact with the column walls, which must therefore be protected against corrosion. with a correspondingly higher expense. Furthermore, every single step in the known apparatus is fed with seawater which has been preheated in a lower stage, so that there is also a very high concentration factor with resulting precipitation problems also in high temperature stages.
Med opfindelsen tilsigtes der tilvejebragt et afsaltningsapparat, med hvilket det er muligt at udføre flerlegeme-destillationen af havvand under bibeholdelse af de forud beskrevne fordele og ved udelukkelse af de væsentlige ulemper, der skyldes anvendelsen af pumper mellem de forskellige trin og anvendelsen af rør med store diametre til transport af dampen.The invention aims to provide a desalination apparatus with which it is possible to carry out the multi-body distillation of seawater while retaining the advantages described above and by excluding the major disadvantages arising from the use of pumps between the various stages and the use of large-scale pipes. diameters for transporting the steam.
Apparatet ifølge opfindelsen består af en lodret anbragt kolonne delt i flere cylindriske sektioner og er ejendommeligt ved, at hver sektion omfatter følgende elementer: a) to filminddampere med lodret rørbundt og fortrinsvis ét tværsnit, der er formet som et cirkelafsnit, uden yderkappe, b) to bassiner, der hver er forbundet således: ved bunden til den øvre rørbund af en af filminddamperne i samme sektion, idet bassinet i sidste sektion, der er uden filminddampere, er forbundet med afgangsrøret for saltopløsningen; ved toppen til den nederste rørbund i en af filminddamperne i den ovenliggende sektion, idet bassinerne i første sektion er forbundet med tilgangsrøret for havvandet, c) et lamineringssystem (en flaskehals) ved bunden af hvert bassin og med det formål at tillade passage af saltopløsning fra bassinet til den underliggende rørbund under samtidig delvis udligning af den positive trykforskel, der er mellem bassinet og rørbunden, hvilket lamineringssystem kan være et neddykket overfald eller en ventil, specielt en svømmerventil, 5 143269 d) åbninger i oversiden af hvert bassin undtagen bassinerne i første sektion, hvilke åbninger kan være udstyret med væskefjernere eller demistere, e) et eller flere sifonrør til udtagning af det kondensat, der samles ved bunden af hver sektion, og til genindførsel deraf midt på den følgende sektion, f) en rørbundtsvarmeveksler, fortrinsvis anbragt vandret til forvarmning af havvandet, idet forvarmningsmidlet er den damp, der dannes i hvert enkelt trin, og g) midler til overførsel af de eventuelt tilstedeværende inerte gasser fra én sektion til den følgende lige til vakuumstationen eller direkte til vakuumstationen, f.eks. rør udstyret med ventiler.The apparatus according to the invention consists of a vertical column divided into several cylindrical sections and is characterized in that each section comprises the following elements: a) two film evaporators with vertical tube bundle and preferably one cross section shaped as a circular section, without outer sheath, b) two basins each connected as follows: at the bottom to the upper tube bottom of one of the film evaporators in the same section, the last section basin, which is free of film evaporators, being connected to the outlet tube for the saline solution; at the top to the bottom tube bottom of one of the film evaporators in the upper section, the basins of the first section being connected to the seawater inlet; the basin to the underlying pipe bottom while simultaneously equalizing the positive pressure difference between the basin and the pipe bottom, which lamination system may be a submerged assault or valve, especially a float valve, d) openings in the upper side of each basin except the basins of the first (e) one or more siphon tubes for removing the condensate collected at the bottom of each section and for reintroduction thereof in the middle of the following section; (f) a tube bottom heat exchanger, preferably arranged horizontally for preheating the seawater, the preheating agent being the vapor generated in each step, and g ) means for transferring the possibly inert gases present from one section to the next straight to the vacuum station or directly to the vacuum station, e.g. pipes fitted with valves.
Trykket i sektionerne falder fra toppen til bunden.The pressure in the sections drops from the top to the bottom.
Det på bundpladen af hver sektion samlede kondensat føres til det følgende trin.The condensate collected on the bottom plate of each section is passed to the following step.
På denne måde er det ikke nødvendigt at have en perfekt mekanisk tætning mellem én sektion og den følgende, idet det er tilstrækkeligt, at der er væske oven på pladen til sikring af tæthed mod dampsiden, idet det ikke gør noget, at væske eventuelt siver gennem bærepladen.In this way, it is not necessary to have a perfect mechanical seal between one section and the following, as it is sufficient that there is liquid on top of the plate to ensure tightness to the vapor side, as it does not allow any liquid to seep through. the carrier plate.
I ekstreme tilfælde kunne de enkelte inddampere simpelthen hvile på den tilsvarende bærering med bemærkelsesværdig forenkling af konstruktion og montering til følge.In extreme cases, the individual evaporators could simply rest on the corresponding bearing, with remarkable simplification of construction and assembly.
Havvandet flyder inde i varmevekslerne uden at komme i kontakt med kolonnen, som derfor kan være fremstillet af kulstofstål.The seawater flows inside the heat exchangers without coming into contact with the column, which can therefore be made of carbon steel.
Fordelingen af saltvandet i rørene i filminddamperne sker ved hjælp af passende fordelingsrørringe.The distribution of the salt water in the tubes in the film evaporators is done by means of suitable distribution tube rings.
Til anlæg af middel eller stor størrelse kan det være hensigtsmæssigt at bruge mindst 15 trin, arrangeret i to kolonner.For medium or large size systems, it may be advisable to use at least 15 steps arranged in two columns.
Til rensning af filminddamperne uden at tage dem ud af kolonnen vil det være nødvendigt at tilvejebringe en afstand på ca.To clean the film evaporators without removing them from the column, it will be necessary to provide a distance of approx.
2 m mellem inddamperne.2 m between evaporators.
For små anlæg med ikke mere end 10-12 trin kan en enkelt kolonne være tilstrækkelig, og til vedligeholdelse vil det være hensigtsmæssigt at udtage varmevekslerne fra kolonnen.For small systems with no more than 10-12 steps, a single column may be sufficient and for maintenance it will be appropriate to remove the heat exchangers from the column.
Ved brug af apparatet ifølge opfindelsen er der ingen udfældningsproblemer, fordi alt fødevandet sendes til det første trin, i hvilket der er den højeste temperatur, og koncentrationsfaktoren forøges fra det første trin til det sidste trin, i hvilket der er den 143269 6 laveste temperatur og den højeste koncentrationsfaktor.When using the apparatus of the invention, there is no precipitation problem because all the feed water is sent to the first stage at which is the highest temperature and the concentration factor is increased from the first stage to the last stage at which is the lowest temperature and the highest concentration factor.
Det specielle arrangement af de lodrette rørbundter, der er udformet som cirkelafsnit, giver følgende fordele: a. formindsket pladsbehov, b. mulighed for forøgelse af tværsnittet for damppassage gennem åbningerne i bassinerne, der kan være såvel cirkulære som af anden form, c. mulighed for installation af en forvarmer mellem rørbundterne , d. let fordeling af dampen til kondensationsfladerne og derfor mindre tryktab.The special arrangement of the vertical tubular bundles designed as a circular section provides the following advantages: a. Reduced space demand, b. The possibility of increasing the cross section of vapor passage through the openings in the basins, which can be both circular and of other shape, c. for the installation of a preheater between the pipe bundles, d. Easy distribution of the steam to the condensing surfaces and therefore less pressure loss.
Opfindelsen forklares nærmere ved hjælp af tegningens fig.The invention is further explained by means of the drawing of FIG.
2, der viser en udførelsesform for apparatet ifølge opfindelsen.2, showing an embodiment of the apparatus according to the invention.
På denne figur er vist en kolonne 1, tilførselsforbindelser 2 for havvandet, der forvarmes ved hjælp af forvarmere 3, bassiner 4, der samler saltopløsningen, overfald 6, dampafgangshuller 7, der er forsynet med demistere, inddampere 8 med lodrette rørbundter (kun et enkelt rør er vist), rør 9, der bringer kondensatet (destilleret vand) fra ét trin til det følgende, afgangsrør 10 for saltvand, afgangsrør 11 for ferskvand, tilgang 5 for primær damp, rør 12 til overførsel af eventuelt tilstedeværende inerte gasser fra ét trin til det følgende og frem til vakuumstationen og et rør 13 til forbindelse til vakuumstationen.This figure shows a column 1, seawater supply connections 2 preheated by preheaters 3, basins 4 which collect the saline solution, overflows 6, vapor outlet holes 7 provided with demisters, evaporators 8 with vertical tubes (only a single one). pipes are shown), pipes 9 bringing the condensate (distilled water) from one stage to the following, outlet pipes 10 for saline water, outlet pipes 11 for fresh water, access 5 for primary steam, pipes 12 for transferring any inert gases present from one stage to the following and to the vacuum station and a tube 13 for connection to the vacuum station.
Havvandet kommer ind gennem rørene 2 og går ind i første bassin 4. Det spredes fra overfaldet 6 på rørbunden af den underliggende inddamper 8, der opererer ved undertryk. Denne inddamper opvarmes direkte med damp tilført udefra ved 5. Den direkte tilførte damp virker som sidste forvarmningsmiddel for havvandet i varmeveksleren 3.The seawater enters through the pipes 2 and enters the first basin 4. It is dissipated from the assault 6 on the pipe bottom of the underlying evaporator 8, operating under vacuum. This evaporator is heated directly with steam supplied from outside at 5. The directly supplied steam acts as the last preheating agent for the sea water in the heat exchanger 3.
På grund af opvarmningen fordamper havvandet delvis inde i inddamperens rør, og den således dannede væske-damp-blanding flyder til bassinet i den underliggende sektion, hvori dampen skilles fra væsken, idet den går ud gennem de specielle huller, der er forsynet med demistere. Den væske, der passerer gennem bassinernes overfald, går ind i rørene på den efterfølgende inddamper, der opererer ved lavere tryk osv. Derimod kondenserer dampen uden på inddamperne 8 og den kondensator 3, der er anbragt i samme kolonnesektion.Due to the heating, the seawater partially evaporates inside the evaporator's pipe, and the liquid-vapor mixture thus formed flows to the basin in the underlying section, in which the vapor is separated from the liquid as it exits through the special holes provided with demisters. The liquid passing through the basins' attack enters the tubes of the subsequent evaporator operating at lower pressure, etc. In contrast, the steam condenses outside the evaporators 8 and the condenser 3 located in the same column section.
Operationerne følger efter hinanden på samme måde til sidste sektion, hvori der ikke er nogle inddampere, idet den tilbageværendeThe operations follow one another in the same way to the last section, in which there are no evaporators, the remaining one
Claims (2)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2673272 | 1972-07-07 | ||
| IT26732/72A IT964539B (en) | 1972-07-07 | 1972-07-07 | EQUIPMENT FOR THE DESALINATION OF SEA WATER |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DK143269B true DK143269B (en) | 1981-08-03 |
| DK143269C DK143269C (en) | 1981-11-30 |
Family
ID=11220125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK377473A DK143269C (en) | 1972-07-07 | 1973-07-06 | SEA DISPOSAL DEVICE |
Country Status (25)
| Country | Link |
|---|---|
| JP (1) | JPS5633121B2 (en) |
| AR (1) | AR195032A1 (en) |
| BE (1) | BE801425A (en) |
| BG (1) | BG21190A3 (en) |
| BR (1) | BR7305086D0 (en) |
| CA (1) | CA1020487A (en) |
| DD (1) | DD106334A5 (en) |
| DE (1) | DE2334481C3 (en) |
| DK (1) | DK143269C (en) |
| ES (1) | ES417067A1 (en) |
| FR (1) | FR2192072B1 (en) |
| GB (1) | GB1396074A (en) |
| IE (1) | IE37827B1 (en) |
| IN (1) | IN139924B (en) |
| IT (1) | IT964539B (en) |
| NL (1) | NL177998C (en) |
| NO (1) | NO139046C (en) |
| OA (1) | OA04465A (en) |
| PL (1) | PL81608B1 (en) |
| RO (1) | RO61605A (en) |
| SE (1) | SE390955B (en) |
| SU (1) | SU1075946A3 (en) |
| TR (1) | TR17860A (en) |
| YU (1) | YU35551B (en) |
| ZA (1) | ZA734154B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1113611B (en) * | 1977-09-14 | 1986-01-20 | Snam Progetti | EQUIPMENT FOR THE DESALATION OF SEA OR SALT WATER |
| IT1041777B (en) * | 1975-07-15 | 1980-01-10 | Snam Progetti | SEA WATER DESALINATION EQUIPMENT WITH AUTOMATIC ADJUSTMENT OF FRESHWATER AND BRINE LEVELS |
| DE3219387A1 (en) * | 1982-05-24 | 1983-12-01 | D.V.T. Büro für Anwendung Deutscher Verfahrenstechnik H. Morsy, 4000 Düsseldorf | ARRANGEMENT FOR THE DESALINATION OF SEA WATER BY THE MULTI-EFFECT EVAPORATION PROCESS |
| GB2120768B (en) * | 1982-05-24 | 1985-09-11 | Dvt Buro Fur Anwendung Deutsch | Apparatus for the desalination of sea water |
| DE3239816A1 (en) * | 1982-05-24 | 1983-11-24 | Dvt Deutsch Verfahrenstech | METHOD FOR DISTILLING SEAWATER FROM SEAWATER |
| EP0133427A1 (en) * | 1983-01-17 | 1985-02-27 | SAARI, Risto | Heat exchanger in plate construction |
| JPH0144259Y2 (en) * | 1985-02-12 | 1989-12-21 | ||
| JPS6412720U (en) * | 1987-07-13 | 1989-01-23 | ||
| JP6656940B2 (en) * | 2016-01-29 | 2020-03-04 | 株式会社荏原製作所 | Multi-effect thin film evaporative concentrator with switching operation |
| CN111375218B (en) * | 2020-03-30 | 2021-09-03 | 山东凯斯达机械制造有限公司 | Molasses concentrating device and using method and process thereof |
| CN111359240B (en) * | 2020-03-30 | 2021-08-20 | 山东凯斯达机械制造有限公司 | Tubular falling film evaporator, concentration device and using method and process of concentration device |
| CN114917600A (en) * | 2022-06-01 | 2022-08-19 | 启东神农机械有限公司 | Evaporative crystallization process and device for producing borax from salt lake lithium extraction discharge liquid |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3487873A (en) * | 1967-02-15 | 1970-01-06 | Le Roy A Bromley | Multiple effect flash evaporator |
-
1972
- 1972-07-07 IT IT26732/72A patent/IT964539B/en active
-
1973
- 1973-06-15 YU YU1624/73A patent/YU35551B/en unknown
- 1973-06-19 IE IE1013/73A patent/IE37827B1/en unknown
- 1973-06-20 ZA ZA734154A patent/ZA734154B/en unknown
- 1973-06-21 TR TR17860A patent/TR17860A/en unknown
- 1973-06-21 GB GB2962973A patent/GB1396074A/en not_active Expired
- 1973-06-25 BE BE1005190A patent/BE801425A/en not_active IP Right Cessation
- 1973-06-25 FR FR7323047A patent/FR2192072B1/fr not_active Expired
- 1973-06-26 IN IN1487/CAL/73A patent/IN139924B/en unknown
- 1973-06-28 AR AR247808D patent/AR195032A1/en active
- 1973-07-03 NO NO2726/73A patent/NO139046C/en unknown
- 1973-07-05 JP JP7533373A patent/JPS5633121B2/ja not_active Expired
- 1973-07-06 DD DD172109A patent/DD106334A5/xx unknown
- 1973-07-06 DK DK377473A patent/DK143269C/en not_active IP Right Cessation
- 1973-07-06 PL PL1973163863A patent/PL81608B1/en unknown
- 1973-07-06 SU SU731942404A patent/SU1075946A3/en active
- 1973-07-06 DE DE2334481A patent/DE2334481C3/en not_active Expired
- 1973-07-06 BR BR5086/73A patent/BR7305086D0/en unknown
- 1973-07-06 BG BG24052A patent/BG21190A3/xx unknown
- 1973-07-06 RO RO75367A patent/RO61605A/ro unknown
- 1973-07-06 SE SE7309562A patent/SE390955B/en unknown
- 1973-07-06 CA CA175,834A patent/CA1020487A/en not_active Expired
- 1973-07-06 ES ES417067A patent/ES417067A1/en not_active Expired
- 1973-07-09 NL NLAANVRAGE7309583,A patent/NL177998C/en not_active IP Right Cessation
- 1973-08-24 OA OA54995A patent/OA04465A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AU5641873A (en) | 1974-12-05 |
| FR2192072B1 (en) | 1977-08-05 |
| NO139046B (en) | 1978-09-18 |
| TR17860A (en) | 1976-05-12 |
| DK143269C (en) | 1981-11-30 |
| YU35551B (en) | 1981-04-30 |
| SU1075946A3 (en) | 1984-02-23 |
| YU162473A (en) | 1980-09-25 |
| NL177998B (en) | 1985-08-01 |
| DE2334481A1 (en) | 1974-01-24 |
| DE2334481B2 (en) | 1978-05-03 |
| JPS4953160A (en) | 1974-05-23 |
| GB1396074A (en) | 1975-05-29 |
| IN139924B (en) | 1976-08-21 |
| NL7309583A (en) | 1974-01-09 |
| NO139046C (en) | 1978-12-27 |
| IE37827L (en) | 1974-01-07 |
| JPS5633121B2 (en) | 1981-08-01 |
| NL177998C (en) | 1986-01-02 |
| DD106334A5 (en) | 1974-06-12 |
| ES417067A1 (en) | 1976-03-01 |
| DE2334481C3 (en) | 1979-01-11 |
| BG21190A3 (en) | 1976-03-20 |
| CA1020487A (en) | 1977-11-08 |
| PL81608B1 (en) | 1975-08-30 |
| IE37827B1 (en) | 1977-10-26 |
| FR2192072A1 (en) | 1974-02-08 |
| RO61605A (en) | 1977-01-15 |
| SE390955B (en) | 1977-01-31 |
| OA04465A (en) | 1980-03-15 |
| BE801425A (en) | 1973-10-15 |
| BR7305086D0 (en) | 1974-09-05 |
| IT964539B (en) | 1974-01-31 |
| ZA734154B (en) | 1974-11-27 |
| AR195032A1 (en) | 1973-08-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6309513B1 (en) | Desalination of seawater by evaporation in a multi-stack array of vertical tube bundles, with waste heat | |
| US20230415068A1 (en) | Systems including a condensing apparatus such as a bubble column condenser | |
| US4624747A (en) | Process for the distillation of fresh water from sea water | |
| US3303106A (en) | Falling film evaporator | |
| US6254734B1 (en) | Barometric evaporation process and evaporator | |
| US9393502B1 (en) | Desalination system | |
| US7422663B2 (en) | Desalination machine | |
| DK143269B (en) | SEA DISPOSAL DEVICE | |
| US3768539A (en) | Modular arrangement of falling film multiple effect evaporator | |
| EA004968B1 (en) | Process and plant for multi-stage desalination of water | |
| US3322648A (en) | Modular multiple-effect falling-film evaporator | |
| US20120055776A1 (en) | Multi effect distiller with falling film evaporator and condenser cells | |
| US3481835A (en) | Multiple effect distillation apparatus | |
| US3961658A (en) | Sea water desalination apparatus | |
| JPH07508207A (en) | Method and device for seawater desalination using a plate heat exchanger | |
| US3803001A (en) | Combination condenser-degasser-deaerator for a desalination plant | |
| ES2844941T3 (en) | Seawater desalination apparatus for desalinating seawater | |
| US10702794B2 (en) | Multiple-effect vapor chamber distillation system and methods of use | |
| US4349068A (en) | Method for improved heat transfer | |
| US3307614A (en) | Falling film type evaporators and method | |
| EP2475442B1 (en) | Multiple-effect evaporator | |
| WO2015025334A2 (en) | Spray modular evaporator | |
| US4364794A (en) | Liquid concentration apparatus | |
| US4348261A (en) | Method for distilling a liquid | |
| US3457143A (en) | Method for multiple effect flash evaporation and contact condensation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PBP | Patent lapsed |