FR2630027A1 - Device for separating mixtures by centrifuging - Google Patents
Device for separating mixtures by centrifuging Download PDFInfo
- Publication number
- FR2630027A1 FR2630027A1 FR8805158A FR8805158A FR2630027A1 FR 2630027 A1 FR2630027 A1 FR 2630027A1 FR 8805158 A FR8805158 A FR 8805158A FR 8805158 A FR8805158 A FR 8805158A FR 2630027 A1 FR2630027 A1 FR 2630027A1
- Authority
- FR
- France
- Prior art keywords
- tube
- mixture
- circulation
- distributor
- circulation channel
- 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.)
- Granted
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 22
- 238000000605 extraction Methods 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 4
- 239000007787 solid Substances 0.000 claims abstract description 3
- 238000005119 centrifugation Methods 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims 1
- 210000000056 organ Anatomy 0.000 description 3
- 230000035515 penetration Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/26—Steam-separating arrangements
- F22B37/32—Steam-separating arrangements using centrifugal force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0217—Separation of non-miscible liquids by centrifugal force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2488—Feed or discharge mechanisms for settling tanks bringing about a partial recirculation of the liquid, e.g. for introducing chemical aids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/26—Separation of sediment aided by centrifugal force or centripetal force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/26—Separation of sediment aided by centrifugal force or centripetal force
- B01D21/265—Separation of sediment aided by centrifugal force or centripetal force by using a vortex inducer or vortex guide, e.g. coil
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C3/00—Apparatus in which the axial direction of the vortex flow following a screw-thread type line remains unchanged ; Devices in which one of the two discharge ducts returns centrally through the vortex chamber, a reverse-flow vortex being prevented by bulkheads in the central discharge duct
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C3/00—Apparatus in which the axial direction of the vortex flow following a screw-thread type line remains unchanged ; Devices in which one of the two discharge ducts returns centrally through the vortex chamber, a reverse-flow vortex being prevented by bulkheads in the central discharge duct
- B04C3/06—Construction of inlets or outlets to the vortex chamber
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Extraction Or Liquid Replacement (AREA)
- Cyclones (AREA)
Abstract
Description
Séparateur de mélanges par centrifugation
La présente invention concerne un séparateur d'un mélange d'une vapeur (ou un gaz, ou un liquide) et d'un liquide cor un solide) par centrifugation à l'intérieur d'une enceinte enveloppant au moins une cellule, ce séparateur pouvant être installé verticalement ou horizontalement.Mixing separator by centrifugation
The present invention relates to a separator of a mixture of a vapor (or a gas, or a liquid) and a liquid or a solid) by centrifugation inside an enclosure enveloping at least one cell, this separator can be installed vertically or horizontally.
Chaque cellule est munie d'un canal de circulation ménagé entre un tube de circulation et un organe central de guidage creux, d'un distributeur imprimant au mélange un écoulement tourbillonnaire à 11 entrée du canal de circulation, d'un tube de recueil d'une partie moins dense du mélange initial, installé à la sortie du tube de circulation pour prolonger le canal de circulation, d'au moins un dispositif d'extraction d'une partie plus dense de ce mélange, d'au moins un dispositif de recueil de cette partie, de moyens de réintroduction partielle de cette partie plus dense dans le mélange à séparer, les moyens de réintroduction constituant en au moins une conduite d'extraction reliant le dispositif de recueil et l'intérieur de l'organe central, et en au moins un canal de réinjection pratiqué dans la paroi de l'organe central, en aval du distributeur. Each cell is provided with a circulation channel formed between a circulation tube and a central hollow guide member, with a distributor which prints the mixture with a vortex flow at the inlet of the circulation channel, with a collection tube. a less dense part of the initial mixture, installed at the outlet of the circulation tube to extend the circulation channel, of at least one device for extracting a denser part of this mixture, from at least one collecting device of this part, of means for partial reintroduction of this denser part into the mixture to be separated, the reintroduction means constituting at least one extraction pipe connecting the collection device and the interior of the central organ, and at least one reinjection channel formed in the wall of the central member, downstream of the distributor.
On connart, notamment par le document EP-A-0162.441, un tel séparateur dont la conduite d'extraction est située dans le tube de recueil en aval d'un dispositif de redressage. We know, in particular from document EP-A-0162.441, such a separator whose extraction pipe is located in the collection tube downstream of a straightening device.
La présente invention a pour but d'améliorer fortement l'effica- cité du séparateur lorsque l'on souhaite séparer des mélanges à forte pression et forte humidité, et ce but est atteint en plaçant la conduite d'extraction en amont du distributeur. The object of the present invention is to greatly improve the efficiency of the separator when it is desired to separate mixtures at high pressure and high humidity, and this object is achieved by placing the extraction pipe upstream of the distributor.
Le séparateur de la présente invention est caractérisé en ce que la conduite d'extraction traverse le canal de circulation en amont du distributeur. The separator of the present invention is characterized in that the extraction pipe crosses the circulation channel upstream of the distributor.
Avantageusement, une cellule est munie d'un redresseur d'écoulement installé dans le canal de circulation, entre le tube de recueil et l'organe central. Advantageously, a cell is provided with a flow straightener installed in the circulation channel, between the collection tube and the central member.
De préférence, la conduite d'extraction a une section en forme de goutte d'eau permettant de perturber au minimum l'écoulement principal entrant dans la cellule. Preferably, the extraction pipe has a section in the form of a drop of water making it possible to disturb at least the main flow entering the cell.
Selon un premier mode de réalisation, le tube de circulation et le tube de recueil sont reliés solidairement, au niveau du dispositif d'extraction, par des ailettes soudées aux deux tubes et réparties sur~toute la circonférence. According to a first embodiment, the circulation tube and the collection tube are integrally connected, at the level of the extraction device, by fins welded to the two tubes and distributed over the entire circumference.
Selon un deuxième mode de réalisation, l'organe central est constitué de deux parties distinctes coulissant l'une dans l'autre, le tube de circulation et le tube de recueil étant reliés, au niveau du dispositif d'extraction, par des plots assurant un libre déplacement longitudinal d'un tube par rapport à l'autre. Cette cellule ainsi constituée de deux parties libres en translation, peut, de ce fait, se dilater indépendamment de son enceinte. According to a second embodiment, the central member consists of two separate parts sliding one inside the other, the circulation tube and the collection tube being connected, at the level of the extraction device, by studs ensuring free longitudinal movement of one tube relative to the other. This cell thus made up of two parts free in translation, can, therefore, expand independently of its enclosure.
Il est décrit ci-après, à titre d'exemple et en référence aux dessins annexés, un séparateur selon l'invention. There is described below, by way of example and with reference to the accompanying drawings, a separator according to the invention.
La figure 1 représente le premier mode de réalisation. Figure 1 shows the first embodiment.
La figure 2 représente le deuxième mode de réalisation. Figure 2 shows the second embodiment.
La figure 1 représente, en coupe axiale, un séparateur d'un mélange eau-vapeur. Ce séparateur comporte une enceinte 2 enveloppant une seule cellule constituée par
- un organe central de guidage 120, creux, dont le fond comporte un bouchon 3',
- un tube de circulation 100,
- un canal 101 ménagé entre l'organe central 120 et le tube 100,
- un distributeur 102 installé dans le canal 101 pour assurer la mise en rotation du mélange à séparer, ce distributeur 102 étant constitué d'ailettes fixes,
- un tube de recueil 103 de vapeur quasiment sèche, muni d'un redresseur d'écoulement 104 ce redresseur étant installé dans le canal de circulation 101 et constitué d'ailettes fixes,
- un dispositif d'extraction 105 mettant l'écoulement principal en communication avec un dispositif de recueil ou chambre 107.Figure 1 shows, in axial section, a separator of a water-steam mixture. This separator comprises an enclosure 2 enveloping a single cell constituted by
a hollow central guide member 120, the bottom of which has a plug 3 ′,
- a circulation tube 100,
a channel 101 formed between the central member 120 and the tube 100,
a distributor 102 installed in the channel 101 to ensure the rotation of the mixture to be separated, this distributor 102 consisting of fixed fins,
a collection tube 103 of almost dry vapor, provided with a flow rectifier 104 this rectifier being installed in the circulation channel 101 and consisting of fixed fins,
an extraction device 105 putting the main flow in communication with a collection device or chamber 107.
- une conduite d'extraction 130 disposée à l'entrée de la cellule et qui relie le haut de la chambre 107 et l'intérieur de l'organe central creux 120 pour réintroduire la vapeur extraite par le dispositif d'extraction 105. La section de cette conduite 130 a une forme de goutte d'eau dont l'extrémité arrondie est bien entendu située face à l'écoulement, pour ne pas créer de pertes de charge supplémentaires dans l'écoulement principal entrant dans la cellule. - An extraction pipe 130 disposed at the inlet of the cell and which connects the top of the chamber 107 and the interior of the hollow central member 120 to reintroduce the steam extracted by the extraction device 105. The section of this pipe 130 has a teardrop shape whose rounded end is of course located opposite the flow, so as not to create additional pressure drops in the main flow entering the cell.
Au niveau du dispositif d'extraction 105, les tubes 100 et 103 sont reliés solidairement au moyen d'ailettes 110 soudées aux deux tubes et régulièrement réparties sur la circonférence des tubes. At the extraction device 105, the tubes 100 and 103 are joined integrally by means of fins 110 welded to the two tubes and regularly distributed over the circumference of the tubes.
Le séparateur est muni d'une tubulure 109 pour l'évacuation de l'eau extraite. The separator is provided with a tube 109 for the evacuation of the extracted water.
Une opération d'extraction s'effectue de la manière suivante
Le mélange eau-vapeur à séparer pénètre dans la cellule par l'extrémité 1. Les ailettes du distributeur 102 communiquent au mélange un mouvement tourbillonnaire sous l'effet duquel l'eau est centrifugée vers la paroi interne de tube de circulation 100.An extraction operation is carried out as follows
The water-vapor mixture to be separated enters the cell through the end 1. The fins of the distributor 102 impart a vortex movement to the mixture under the effect of which the water is centrifuged towards the internal wall of the circulation tube 100.
La quasi-totalité de l'eau ruisselant sur la paroi interne du tube 100, ou se trouvant au voisinage de cette paroi, pénètre dans le dispositif d'extraction 105 et se dirige vers la chambre 107 puis vers la tubulure d'évacuation 109. Almost all of the water flowing on the internal wall of the tube 100, or being in the vicinity of this wall, enters the extraction device 105 and goes towards the chamber 107 then towards the evacuation pipe 109.
La pénétration de l'eau dans le dispositif 105 et son évacuation sont favorisées par l'extraction d'une certaine fraction de vapeur. The penetration of water into the device 105 and its evacuation are favored by the extraction of a certain fraction of vapor.
Le débit principal de vapeur non extrait par le dispositif 105, ainsi qu'une faible quantité d'eau résiduelle, c'est-à-dire non évacuée par le dispositif 105, pénètrent dans le tube 103 et rencontrent le redresseur 104 destiné à supprimer le mouvement tourbillonnaire de l'écoulement. A la sortie de la cellule, on trouve donc une vapeur sèche, ou quasiment sèche, et animée d'un mouvement pratiquement axial. The main flow of steam not extracted by the device 105, as well as a small amount of residual water, that is to say not discharged by the device 105, penetrate into the tube 103 and meet the rectifier 104 intended to remove the vortex movement of the flow. At the outlet of the cell, there is therefore a dry vapor, or almost dry, and animated by a practically axial movement.
La vapeur extraite par le dispositif 105 est introduite à l'intérieur de l'organe central 120 à travers la conduite d'extraction 130, et réintroduite dans le mélange en cours de séparation par des canaux de réinjection 116 situés en aval du distributeur 102 et répartis sur toute la circonférence de l'organe central 120. The steam extracted by the device 105 is introduced inside the central member 120 through the extraction pipe 130, and reintroduced into the mixture being separated by reinjection channels 116 located downstream of the distributor 102 and distributed over the entire circumference of the central member 120.
La variante de réalisation, représentée dans la figure 2, comporte un organe central en deux parties 120A, 120B libres en translation l'une par rapport à l'autre. The variant embodiment, shown in FIG. 2, comprises a central member in two parts 120A, 120B which are free in translation relative to one another.
Les tubes 100 et 103# sont également libres en translation l'un par rapport à l'autre, par l'intermédiaire de plots 111 régulièrement répartis sur toute lascirconférence de ces deux tubes. The tubes 100 and 103 # are also free in translation with respect to each other, by means of studs 111 regularly distributed over the entire circumference of these two tubes.
En cas de fortes dilatations différentielles entre l'enceinte et la cellule, la cellule ne se déforme pas, car elle est alors constituée de deux parties libres en translation, une partie constituée par le tube 100, la conduite 130, le distributeur 102 et la partie supérieure 120A de l'organe central, et une autre partie constituée par le tube 103, le redresseur 104 et la partie inférieure 120B de l'organe central. In the event of large differential expansions between the enclosure and the cell, the cell does not deform, because it then consists of two parts that are free in translation, one part consisting of the tube 100, the pipe 130, the distributor 102 and the upper part 120A of the central organ, and another part constituted by the tube 103, the rectifier 104 and the lower part 120B of the central organ.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8805158A FR2630027B1 (en) | 1988-04-19 | 1988-04-19 | CENTRIFUGATION MIXTURE SEPARATOR |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8805158A FR2630027B1 (en) | 1988-04-19 | 1988-04-19 | CENTRIFUGATION MIXTURE SEPARATOR |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2630027A1 true FR2630027A1 (en) | 1989-10-20 |
| FR2630027B1 FR2630027B1 (en) | 1991-07-12 |
Family
ID=9365443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8805158A Expired - Lifetime FR2630027B1 (en) | 1988-04-19 | 1988-04-19 | CENTRIFUGATION MIXTURE SEPARATOR |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2630027B1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0520711A1 (en) * | 1991-06-24 | 1992-12-30 | General Electric Company | Moisture separation in turbine interstage steam flow |
| NL1010478C2 (en) * | 1998-11-04 | 2000-05-08 | Cds Engineering B V | Device for treating a gas / liquid mixture. |
| WO2017036970A1 (en) * | 2015-08-28 | 2017-03-09 | Fjords Processing As | Axial flow demister |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR943392A (en) * | 1946-04-03 | 1949-03-07 | Dust collector | |
| GB711304A (en) * | 1951-02-23 | 1954-06-30 | Svenska Flaektfabriken Ab | Device for separating dust |
| DE2256678A1 (en) * | 1972-11-18 | 1974-05-22 | Koerting Ag | Centrifugal separator for gas contaminants - by removing liqs. and solids in gas edge layer and recirculating to give clean exit gas stream |
| FR2558741A1 (en) * | 1984-01-31 | 1985-08-02 | Electricite De France | Centrifugal mixture separator |
| EP0162441A2 (en) * | 1984-05-23 | 1985-11-27 | STEIN INDUSTRIE Société Anonyme dite: | Centrifugal separator for mixtures |
-
1988
- 1988-04-19 FR FR8805158A patent/FR2630027B1/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR943392A (en) * | 1946-04-03 | 1949-03-07 | Dust collector | |
| GB711304A (en) * | 1951-02-23 | 1954-06-30 | Svenska Flaektfabriken Ab | Device for separating dust |
| DE2256678A1 (en) * | 1972-11-18 | 1974-05-22 | Koerting Ag | Centrifugal separator for gas contaminants - by removing liqs. and solids in gas edge layer and recirculating to give clean exit gas stream |
| FR2558741A1 (en) * | 1984-01-31 | 1985-08-02 | Electricite De France | Centrifugal mixture separator |
| EP0162441A2 (en) * | 1984-05-23 | 1985-11-27 | STEIN INDUSTRIE Société Anonyme dite: | Centrifugal separator for mixtures |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0520711A1 (en) * | 1991-06-24 | 1992-12-30 | General Electric Company | Moisture separation in turbine interstage steam flow |
| NL1010478C2 (en) * | 1998-11-04 | 2000-05-08 | Cds Engineering B V | Device for treating a gas / liquid mixture. |
| WO2000025931A1 (en) * | 1998-11-04 | 2000-05-11 | Spark Technologies And Innovations N.V. | Device for treating a gas/liquid mixture |
| US7163626B1 (en) | 1998-11-04 | 2007-01-16 | Spark Technologies And Innovations N.V. | Device for treating a gas/liquid mixture |
| WO2017036970A1 (en) * | 2015-08-28 | 2017-03-09 | Fjords Processing As | Axial flow demister |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2630027B1 (en) | 1991-07-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |