FR2684022A1 - Device enabling air or a gas to be purified by scrubbing and conditioned - Google Patents
Device enabling air or a gas to be purified by scrubbing and conditioned Download PDFInfo
- Publication number
- FR2684022A1 FR2684022A1 FR9114758A FR9114758A FR2684022A1 FR 2684022 A1 FR2684022 A1 FR 2684022A1 FR 9114758 A FR9114758 A FR 9114758A FR 9114758 A FR9114758 A FR 9114758A FR 2684022 A1 FR2684022 A1 FR 2684022A1
- Authority
- FR
- France
- Prior art keywords
- liquid
- washing
- gas flow
- gas
- impurities
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
- B01D46/46—Auxiliary equipment or operation thereof controlling filtration automatic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
- B01D47/021—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath by bubbling the gas through a liquid bath
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
Description
DISPOSITIF PERMETTANT L'EPURATION PAR LAVAGE,
ET LE CONDITIONNEMENT DE L'AIR OU D'UN GAZ
La presente invention a pour objet un dispositif permettant l'épuration par lavage, et le conditionnement de l'air ou d'un gaz.DEVICE FOR PURIFYING BY WASHING,
AND THE CONDITIONING OF AIR OR GAS
The present invention relates to a device for purifying by washing, and conditioning the air or a gas.
I1 peut être utilisé pour les flux gazeux de tous types mais est surtout destiné aux installations de traitement de l'air, que ce soit pour des applications domestiques ou des applications professionnelles, telles que locaux industriels ou informatiques, salles d'opération, ensembles hôteliers ou de bureaux, etc. I1 can be used for gas flows of all types but is mainly intended for air treatment installations, whether for domestic or professional applications, such as industrial or computer premises, operating rooms, hotel complexes or offices, etc.
Il est connu de faire passer de l'air ou un gaz pollué au travers d'un liquide de lavage pour assurer son épuration. De nombreuses installations utilisant ce principe ont vu le jour. Elles mettent en oeuvre divers procédés, tels que écran de fluide ou barbotage, qui tous posent le problème de la régénération du liquide de lavage, l'efficacité du processus étant naturellement fonction de la quantité d'impuretés qu'il contient. It is known to pass polluted air or gas through a washing liquid to ensure its purification. Many installations using this principle have emerged. They implement various processes, such as fluid screen or bubbling, all of which pose the problem of regenerating the washing liquid, the efficiency of the process being naturally a function of the quantity of impurities which it contains.
Deux moyens sont utilisés couramment:
a/Alimentation et rejet permanent du liquide, ce qui entraîne une consommation prohibitive de ce dernier, même s'il s'agit d'eau.Two means are commonly used:
a / Supply and permanent rejection of the liquid, which leads to a prohibitive consumption of the latter, even if it is water.
b/Liquide en circuit fermé. Dans ce cas, il faut périodiquement arrêter l'installation pour remplacer le liquide chargé d'impuretés ou remplacer les filtres chargés de les arrêter, ce qui peut entraîner une gène importante, et en tout état de cause nécessite une surveillance et l'intervention de personnel spécialisé dans les installations importantes. b / Liquid in closed circuit. In this case, the installation must be periodically stopped to replace the liquid loaded with impurities or to replace the filters responsible for stopping them, which can cause a significant gene, and in any event requires monitoring and intervention by personnel specializing in major installations.
Par ailleurs, le lavage du flux gazeux est fréquemment suivi d'un passage à travers un filtre destiné à intercepter certaines impuretés non retenues par le liquide. Soit ce filtre est efficace et il s'encrasse rapidement en provoquant une perte de charge imposant son remplacement fréquent, soit il est inefficace pour éviter ce problème, et les performances du processus sont limitées. In addition, the washing of the gas flow is frequently followed by a passage through a filter intended to intercept certain impurities not retained by the liquid. Either this filter is effective and it quickly clogs causing a pressure drop requiring frequent replacement, or it is ineffective in avoiding this problem, and the performance of the process is limited.
Le dispositif selon la présente invention supprime tous ces inconvenients. En effet, il permet d'obtenir une station de traitement d'une très grande efficacité, pouvant fonctionner sans aucune surveillance, le liquide etant régénéré automatiquement et les filtres lavés en permanence ou périodiquement. The device according to the present invention eliminates all these drawbacks. In fact, it makes it possible to obtain a very high efficiency treatment station, capable of operating without any supervision, the liquid being regenerated automatically and the filters washed continuously or periodically.
I1 est constitué par la combinaison d'une enceinte de lavage et de conditionnement du flux gazeux associée à un système de filtration en circuit fermé du liquide de lavage avec élimination automatique des impuretés, le flux gazeux étant successivement lavé Far barbotage, puis par passage dans une zone à ruissellement et filtré au moyen d'un filtre en fibres lavé en permanence, avant de traverser un évaporateur et un condenseur, une unité de contrôle électronique permettant un fonctionnemnt automatique de l'ensemble. It consists of the combination of a gas flow washing and conditioning enclosure associated with a closed-circuit filtration system of the washing liquid with automatic elimination of impurities, the gas flow being successively washed Far bubbling, then by passing through an area with runoff and filtered by means of a permanently washed fiber filter, before passing through an evaporator and a condenser, an electronic control unit allowing automatic operation of the assembly.
Sur les dessins annexés, donnés à titre d'exemple non limitatif d'une des formes de realisation de l'objet de l'invention:
la figure 1 est une vue schématique montrant en coupe verticale l'ensemble du dispositif,
et la figure 2 est une coupe horizontale de l'enceinte de traitement suivant les flèches A-A de la figure 1. In the appended drawings, given by way of nonlimiting example of one of the embodiments of the object of the invention:
FIG. 1 is a schematic view showing the entire device in vertical section,
and FIG. 2 is a horizontal section of the treatment enclosure according to the arrows AA in FIG. 1.
Le dispositif, figures 1 et 2, est constitué d'une enceinte de traitement 1, d'un circuit fermé de lavage avec pompe 3 et filtre 4 et d'une unité de contrôle électronique 5. The device, FIGS. 1 and 2, consists of a treatment enclosure 1, a closed washing circuit with pump 3 and filter 4 and an electronic control unit 5.
L'enceinte de traitement comporte en partie basse une réserve 6 de liquide de lavage, en partie médiane un filtre en fibres 7 et en partie haute un condenseur 8 ainsi qu'un évaporateur 9 raccordés à un groupe frigorifique 10 réversible. The treatment enclosure comprises in the lower part a reserve 6 of washing liquid, in the middle part a fiber filter 7 and in the upper part a condenser 8 and an evaporator 9 connected to a reversible refrigeration unit 10.
Le flux gazeux est aspiré grâce à une turbine ll et pénètre dans un caisson annulaire 12 situé à l'intérieur de l'enceinte 1, immergé dans la réserve 6 de liquide juste au-desous de son niveau supérieur 13. Ce caisson annulaire est pourvu d'une série de perforations 14 dirigées vers le bas et préférentiellement prolongées par autant d'éléments tubulaires 15. The gas flow is sucked in using a turbine 11 and enters an annular box 12 located inside the enclosure 1, immersed in the reserve 6 of liquid just below its upper level 13. This annular box is provided of a series of perforations 14 directed downwards and preferably extended by as many tubular elements 15.
Le flux gazeux pénètre dans le liquide de lavage en passant au travers de ces perforations et de ces éléments tubulaires et remonte vers la surface du liquide en passant par l'évidement central 16 du caisson annulaire 12, il arrive dans une zone de ruissellement 17 située entre ladite surface et le filtre en fibres 7, traverse ce dernier dans lequel il est débarrassé des impuretes restant en suspension, avant de passer à travers le condenseur 8 et l'évaporateur 9 grâce auxquels son hygrométrie et/ou sa température sont ajustés en fonction des besoins. I1 ressort enfin de l'enceinte 1 par une canalisation 18 située en partie haute. The gas flow enters the washing liquid passing through these perforations and these tubular elements and rises towards the surface of the liquid passing through the central recess 16 of the annular box 12, it arrives in a runoff zone 17 located between said surface and the fiber filter 7, passes through the latter in which it is freed of the impurities remaining in suspension, before passing through the condenser 8 and the evaporator 9 thanks to which its hygrometry and / or its temperature are adjusted as a function needs. I1 finally emerges from the enclosure 1 by a pipe 18 located in the upper part.
Le circuit de lavage est constitué d'une canalisation de sortie 20, d'un filtre 4, d'une pompe 3, et d'une canalisation d'entrée 21, et d'une alimentation 22 en liquide propre sous pression permettant, grâce à une série d'électrovannes 23, 24, 25, 26, soit de compléter le volume de liquide de lavage en cas de necessité, soit de laver périodiquement le filtre 4 à contre-courant, ces opérations étant commandes par l'unité de contrôle électronique 5. The washing circuit consists of an outlet pipe 20, a filter 4, a pump 3, and an inlet pipe 21, and a supply 22 of clean pressurized liquid allowing, thanks to a series of solenoid valves 23, 24, 25, 26, either to top up the volume of washing liquid if necessary, or to periodically wash the filter 4 against the current, these operations being controlled by the control unit electronic 5.
La canalisation de sortie soutire le liquide de l'enceinte au fond de celle-ci ainsi qu'à la surface de la réserve 6 de liquide, afin d'entrainer aussi bien les impuretés lourdes tombant au fond de l'enceinte de traitement que les impuretes légères telles que suies surnageant à la surface du liquide de lavage. Cette disposition permet au dispositif d'être particulièrement adapté au traitement des fumées. The outlet pipe draws the liquid from the enclosure at the bottom thereof as well as from the surface of the liquid reserve 6, in order to entrain both the heavy impurities falling to the bottom of the treatment enclosure and the light impurities such as soot floating on the surface of the washing liquid. This arrangement allows the device to be particularly suitable for treating smoke.
La canalisation d'entrée 21 déverse le liquide de lavage débarrassé d'impuretés au-dessus du filtre en fibres 7, ce qui permet de le laver en permanence et de le maintenir humide, et donc de conserver toujours une efficacité optimale. Cela rend en outre possible l'utilisation d'un filtre épais, plus de 5 millimètres, constitué de fibres ne repoussant pas l'eau qui, autrement serait très rapidement encrasse. The inlet pipe 21 pours the washing liquid free of impurities over the fiber filter 7, which makes it possible to constantly wash it and keep it wet, and therefore always maintain optimum efficiency. This also makes it possible to use a thick filter, more than 5 millimeters, made of fibers which do not repel water which would otherwise very quickly clog up.
Le fonctionnement du dispositif est entièrement automatique, grâce à l'unité de contrôle électronique 5 qui est raccordée d'une part à des capteurs d'opacité 27 et de niveau 28 situés dans la réserve 6 de liquide de lavage et, d'autre part, de capteurs de température 29, d'humidité 30 et de pression 31 installés dans l'espace d'où provient le gaz à traiter. En fonction des informations ainsi reçues et d'un programme incorpore, l'unité de contrôle commande la mise marche ou l'arrêt de la pompe 3 et de la turbine 4 ainsi que l'ouverture ou la fermeture des électro-vannes 23, 24, 25, 26 et pilote le groupe frigorifique 10. The operation of the device is fully automatic, thanks to the electronic control unit 5 which is connected on the one hand to opacity sensors 27 and level 28 located in the reserve 6 of washing liquid and, on the other hand , temperature 29, humidity 30 and pressure 31 sensors installed in the space from which the gas to be treated comes. As a function of the information thus received and of an incorporated program, the control unit controls the starting or stopping of the pump 3 and of the turbine 4 as well as the opening or closing of the solenoid valves 23, 24 , 25, 26 and controls the refrigeration unit 10.
Le positionnement des divers éléments constitutifs donne à l'objet de l'invention un maximum d'effets utiles qui n'avaient pas éte, à ce jour, obtenus par des dispositifs similaires. The positioning of the various constituent elements gives the object of the invention a maximum of useful effects which had not, to date, been obtained by similar devices.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9114758A FR2684022A1 (en) | 1991-11-22 | 1991-11-22 | Device enabling air or a gas to be purified by scrubbing and conditioned |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9114758A FR2684022A1 (en) | 1991-11-22 | 1991-11-22 | Device enabling air or a gas to be purified by scrubbing and conditioned |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2684022A1 true FR2684022A1 (en) | 1993-05-28 |
Family
ID=9419471
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9114758A Pending FR2684022A1 (en) | 1991-11-22 | 1991-11-22 | Device enabling air or a gas to be purified by scrubbing and conditioned |
Country Status (1)
Country | Link |
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FR (1) | FR2684022A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0668095A1 (en) * | 1994-01-28 | 1995-08-23 | The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern | Air/liquid contacting apparatus |
EP0696468A1 (en) * | 1994-08-10 | 1996-02-14 | Air Industrie Systemes | Scrubbing apparatus for continuous gaseous flow containing solid particles |
WO1998031970A1 (en) * | 1997-01-21 | 1998-07-23 | Marc Trancart | Method for treating air for passenger space air-conditioning |
WO2000030734A1 (en) * | 1998-11-25 | 2000-06-02 | University Of Dundee | Method and apparatus for removing particulates |
US6273940B1 (en) * | 1994-09-12 | 2001-08-14 | The Babcock & Wilcox Company | Mist elimination/air toxic control in a wet scrubber using a condensing heat exchanger |
-
1991
- 1991-11-22 FR FR9114758A patent/FR2684022A1/en active Pending
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0668095A1 (en) * | 1994-01-28 | 1995-08-23 | The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern | Air/liquid contacting apparatus |
EP0696468A1 (en) * | 1994-08-10 | 1996-02-14 | Air Industrie Systemes | Scrubbing apparatus for continuous gaseous flow containing solid particles |
FR2723540A1 (en) * | 1994-08-10 | 1996-02-16 | Air Ind Systemes Sa | APPARATUS FOR WASHING A CONTINUOUS FLOW OF GAS LOADED WITH SOLID PARTICLES |
US6267805B1 (en) | 1994-08-10 | 2001-07-31 | Societe Anonyme Dite Air Industrie Systemes - A.I.S. | Apparatus for scrubbing a continuous flow of gas charged with solid particles |
US6273940B1 (en) * | 1994-09-12 | 2001-08-14 | The Babcock & Wilcox Company | Mist elimination/air toxic control in a wet scrubber using a condensing heat exchanger |
WO1998031970A1 (en) * | 1997-01-21 | 1998-07-23 | Marc Trancart | Method for treating air for passenger space air-conditioning |
FR2758612A1 (en) * | 1997-01-21 | 1998-07-24 | Marc Trancart | COMPACT AND VERSATILE WET AIR TREATMENT SYSTEM FOR AIR CONDITIONING |
WO2000030734A1 (en) * | 1998-11-25 | 2000-06-02 | University Of Dundee | Method and apparatus for removing particulates |
US6626983B1 (en) | 1998-11-25 | 2003-09-30 | University Court Of The University Of Dundee | Method and apparatus for removing particulates |
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