FR2814738A1 - Vacuum distillation of water, etc uses vacuum produced by gravity flow of liquid in column; variable pressure pump supplies water as jets into column that evaporate by cavitation - Google Patents
Vacuum distillation of water, etc uses vacuum produced by gravity flow of liquid in column; variable pressure pump supplies water as jets into column that evaporate by cavitation Download PDFInfo
- Publication number
- FR2814738A1 FR2814738A1 FR0012512A FR0012512A FR2814738A1 FR 2814738 A1 FR2814738 A1 FR 2814738A1 FR 0012512 A FR0012512 A FR 0012512A FR 0012512 A FR0012512 A FR 0012512A FR 2814738 A1 FR2814738 A1 FR 2814738A1
- Authority
- FR
- France
- Prior art keywords
- column
- water
- liquid
- vacuum
- cavitation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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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
- C02F1/046—Treatment of water, waste water, or sewage by heating by distillation or evaporation under vacuum produced by a barometric column
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
Description
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La présente invention concerne un dispositif de distillation des eaux usées, saumâtres, sales ou tout autre liquide, produit chimique et pétrochimique. The present invention relates to a device for distilling waste, brackish, dirty water or any other liquid, chemical and petrochemical product.
Actuellement, les techniques les plus performantes de distillation sous vide des eaux consomment beaucoup d'énergie environ 14kwh/m'd'eau distillée, énergie nécessaire à la production du vide et énergie nécessaire à l'évaporation des liquides. Cette invention permet de réduire la consommation d'énergie nécessaire à la création du vide ainsi que celle nécessaire à la vaporisation des liquides. En effet, le vide nécessaire au système est produit une seule fois à la mise en service de l'installation par le remplissage d'eau du système ou une mise sous vide par une pompe à vide, le maintien du vide dans le système est assuré par l'écoulement gravitaire dans la colonne d'eau séparant le milieu sous vide de la pression atmosphérique, l'énergie nécessaire à la vaporisation du liquide peut provenir essentiellement de la cavitation de l'eau au niveau des gicleurs. Currently, the most efficient techniques of vacuum distillation of water consume a lot of energy around 14kwh / m of distilled water, energy necessary for the production of vacuum and energy necessary for the evaporation of liquids. This invention makes it possible to reduce the energy consumption necessary for the creation of the vacuum as well as that necessary for the vaporization of the liquids. In fact, the vacuum necessary for the system is produced only once when the installation is put into service by filling the system with water or putting it into vacuum by a vacuum pump, maintaining the vacuum in the system is ensured. by the gravitational flow in the water column separating the medium under vacuum from atmospheric pressure, the energy necessary for the vaporization of the liquid can come essentially from the cavitation of the water at the level of the nozzles.
Le dispositif de distillation selon l'invention comprend : * Une colonne sous vide arrivée du liquide à distiller dont la base comporte un bac qui peut avoir une forme de tronc de cône ou pyramidale. La colonne peut être équipée d'un système de fermeture à la base * Plusieurs colonnes de distillation sous vide équipées de condenseurs et peuvent être équipées de systèmes de fermetures étanches à l'entrée de la colonne partie supérieure ainsi que d'un système de fermeture à la base. Les colonnes de distillation comportent chacune un bac qui peut avoir une forme d'un tronc de cône ou pyramidale. The distillation device according to the invention comprises: * A vacuum column arriving from the liquid to be distilled, the base of which comprises a tank which may have a truncated cone or pyramidal shape. The column can be equipped with a closing system at the base * Several vacuum distillation columns equipped with condensers and can be equipped with sealing systems at the entrance of the upper column as well as a closing system at the base. The distillation columns each have a tank which may have the shape of a truncated cone or pyramid.
* Une liaison étanche entre toutes les colonnes munies d'un système de remplissage avec fermeture.
* A tight connection between all the columns provided with a filling system with closure.
* Un circuit d'alimentation du liquide à distiller constitué de gicleurs, d'un système d'isolement et d'une pompe d'alimentation à pression variable, il peut comprendre un système de chauffage. * A circuit for supplying the liquid to be distilled consisting of nozzles, an isolation system and a variable pressure supply pump, it may include a heating system.
* Une pompe de remplissage des colonnes, la pompe d'alimentation peut être utiliser à cet effet. * A column filling pump, the supply pump can be used for this purpose.
* La hauteur d'eau dans le système pendant le fonctionnement peut varier entre 0 et 10 m pour la distillation d'eau à une pression variant entre 0 et 1 bar dans les colonnes. * The height of water in the system during operation can vary between 0 and 10 m for the distillation of water at a pressure varying between 0 and 1 bar in the columns.
La pompe d'alimentation à pression variable (12) refoule l'eau à distiller à travers les condenseurs (7) et (7') et éventuellement à travers un chauffage d'appoint d'eau (14) (à utiliser si la température de l'eau est très basse et pendant les démarrages) Jusqu'aux gicleurs (15) installés dans la chambre de cavitation (5) de la colonne du liquide à distiller (3). La pression fournit par la pompe ainsi que la dépression maintenue dans les The variable pressure supply pump (12) discharges the water to be distilled through the condensers (7) and (7 ') and possibly through a water backup heater (14) (to be used if the temperature water is very low and during start-ups) Up to the nozzles (15) installed in the cavitation chamber (5) of the column of the liquid to be distilled (3). The pressure supplied by the pump as well as the vacuum maintained in the
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colonnes (33), (4), et (4') provoquant une importante chute de pression à la sortie des gicleurs (15). Cette différence de pression entraîne une cavitation, transformation du liquide en vapeur et augmentation de température, la pompe à pression variable permet de maintenir la même chute de pression pendant le fonctionnement, assurant ainsi une vaporisation plus importante. La liquéfaction de la vapeur s'effectue à travers des condenseurs (7) et (7') situés dans les chambres (6) et (6') des colonnes eau distillent (4) et (4'). L'opération d'alimentation des colonnes en vapeur s'effectue progressivement colonne après colonne par l'intermédiaire des moyens de fermeture et d'ouverture (8) et (8') des colonnes, elle peut aussi se faire simultanément avec toutes les colonnes ouvertes. columns (33), (4), and (4 ') causing a significant drop in pressure at the outlet of the nozzles (15). This pressure difference causes cavitation, transformation of the liquid into vapor and increase in temperature, the variable pressure pump allows the same pressure drop to be maintained during operation, thus ensuring greater vaporization. The steam liquefaction takes place through condensers (7) and (7 ') located in the chambers (6) and (6') of the distilled water columns (4) and (4 '). The operation of supplying the columns with steam is carried out gradually column after column by means of the closing and opening means (8) and (8 ′) of the columns, it can also be done simultaneously with all the columns open.
Une fois la vapeur condensée, l'eau est récupérée par gravité dans les bacs (2) et (2') et le vide initial est maintenu par l'étanchéité des colonnes. Une partie du liquide non évaporé ainsi que les sels minéraux et autres particules solides sont récupérés dans le bac (1). Once the steam has condensed, the water is recovered by gravity in the tanks (2) and (2 ') and the initial vacuum is maintained by sealing the columns. Part of the non-evaporated liquid as well as mineral salts and other solid particles are collected in the tank (1).
Au démarrage de l'installation, on procède à la mise sous vide du système en effectuant les opérations suivantes : Fermeture des vannes (16), (17) et (17') Remplissage de liquide distillé de tout le système à l'aide de la pompe de remplissage (13) Fermeture de la vanne (18) Réouverture des vannes (16), (17) et (17') Sous l'effet de la gravité, l'écoulement du liquide dans les colonnes s'effectue en créant une dépression dans la partie supérieure du système. L'écoulement s'arrête quand le niveau du liquide atteint la pression atmosphérique environ 10mètres pour l'eau par rapport au niveau d'eau dans les bacs (l), (2) et (2'). La forme et le volume des bacs ont été choisie de telle sorte que même si le système atteint la pression atmosphérique tout le volume du liquide du système sera emmagasiné dans les bacs. Toutes les opérations peuvent être commandées automatiquement par des électrovannes ou des vannes pneumatiques en fonction de la pression détectée par le vacuostat (vacuomètre à contact) (19) On peut aussi imaginer l'utilisation d'un relief accidenté et utiliser la dénivelée de 10 mètres entre 2 côtes pour concevoir le système.At the start of the installation, the system is evacuated by performing the following operations: Closing of the valves (16), (17) and (17 ') Filling of distilled liquid throughout the system using the filling pump (13) Closing of the valve (18) Reopening of the valves (16), (17) and (17 ') Under the effect of gravity, the liquid flows through the columns by creating a depression in the upper part of the system. The flow stops when the level of the liquid reaches atmospheric pressure about 10 meters for the water compared to the water level in the tanks (l), (2) and (2 '). The shape and volume of the tanks have been chosen so that even if the system reaches atmospheric pressure the entire volume of the system liquid will be stored in the tanks. All operations can be controlled automatically by solenoid valves or pneumatic valves depending on the pressure detected by the vacuum switch (contact vacuum gauge) (19) One can also imagine the use of uneven terrain and use the 10-meter drop between 2 ribs to design the system.
Claims (1)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0012512A FR2814738A1 (en) | 2000-09-29 | 2000-09-29 | Vacuum distillation of water, etc uses vacuum produced by gravity flow of liquid in column; variable pressure pump supplies water as jets into column that evaporate by cavitation |
FR0103724A FR2814739A1 (en) | 2000-09-29 | 2001-03-19 | Vacuum distillation of wastewater involves using series of columns and associated chambers supplied with vapor produced by draining water from columns |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0012512A FR2814738A1 (en) | 2000-09-29 | 2000-09-29 | Vacuum distillation of water, etc uses vacuum produced by gravity flow of liquid in column; variable pressure pump supplies water as jets into column that evaporate by cavitation |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2814738A1 true FR2814738A1 (en) | 2002-04-05 |
Family
ID=8854880
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR0012512A Withdrawn FR2814738A1 (en) | 2000-09-29 | 2000-09-29 | Vacuum distillation of water, etc uses vacuum produced by gravity flow of liquid in column; variable pressure pump supplies water as jets into column that evaporate by cavitation |
Country Status (1)
Country | Link |
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FR (1) | FR2814738A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITPI20110096A1 (en) * | 2011-09-05 | 2013-03-06 | Alexandr Yurievich Baurov | "A WATER DESALIFICATION DEVICE" |
EP2709957A4 (en) * | 2011-05-16 | 2015-12-30 | Marvin Pierre | Hydraulic desalination device and method |
-
2000
- 2000-09-29 FR FR0012512A patent/FR2814738A1/en not_active Withdrawn
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2709957A4 (en) * | 2011-05-16 | 2015-12-30 | Marvin Pierre | Hydraulic desalination device and method |
ITPI20110096A1 (en) * | 2011-09-05 | 2013-03-06 | Alexandr Yurievich Baurov | "A WATER DESALIFICATION DEVICE" |
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