EP0302386B1 - Centrifugal separator with axial inlets and outlets - Google Patents
Centrifugal separator with axial inlets and outlets Download PDFInfo
- Publication number
- EP0302386B1 EP0302386B1 EP88112188A EP88112188A EP0302386B1 EP 0302386 B1 EP0302386 B1 EP 0302386B1 EP 88112188 A EP88112188 A EP 88112188A EP 88112188 A EP88112188 A EP 88112188A EP 0302386 B1 EP0302386 B1 EP 0302386B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rings
- liquid
- machine
- fixed
- treated
- 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.)
- Expired - Lifetime
Links
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 239000012071 phase Substances 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 239000007791 liquid phase Substances 0.000 claims abstract description 5
- 238000000926 separation method Methods 0.000 claims description 2
- 230000000284 resting effect Effects 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 235000013365 dairy product Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
- B07B7/08—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
- B04B1/04—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with inserted separating walls
- B04B1/08—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with inserted separating walls of conical shape
Definitions
- the subject of the present invention is a centrifugal liquid separator, more particularly intended for use in the dairy industry, but which can also be used for mineral or vegetable oils or for other liquid mixtures, the effect of force. centrifugal acting on said liquids to separate their constituents having different densities.
- liquids of different densities separated by centrifugation by means of the apparatus are directed upwards inside concentric annular conduits formed in the rotating part of the machine, in order then to be sent into different destinations through conduits made in the fixed head of said machine.
- the fixed head of the machine is very simplified and the seal between the various axial conduits is obtained using profiled rings, movable relative to the fixed parts of the machine and which come into contact with fixed rings. relative to the rotating parts of the machine, under the effect of the pressure itself of the liquids which acts on these movable rings, which makes it possible above all to obtain a considerable simplification of the hydraulic circuits while making it possible to eliminate the presence of springs of any type, thereby facilitating the control and maintenance of the machine.
- the liquid to be treated enters the centrifugal separator through the central duct 1 to come out, in the state separated from its two phases with different specific weights, through the co-axial ducts 2 and 3.
- phase with lower specific gravity which goes up through the innermost co-axial duct 2 is brought to the duct co-axial 4 provided in the fixed head of the machine to lead into outlet outlets, while the phase with the highest specific weight which rises through the external co-axial duct 3 escapes through the outlet mouth 5 formed in the fixed part of the machine.
- the seal between the central inlet duct 1 and the first co-axial outlet duct 2 is ensured by the ring 6, which is fixed to the central part 7 of the rotor and against which the movable ring is applied. 8, provided co-axially to the central duct 1, which ring comes through its upper lip 8 'in contact with the fixed ring 6, under the effect of thrust of the pressure of the liquid in the duct 1, pressure which is exerted according to the direction indicated by the arrows 9.
- the stop circlip 10 carried by the central tube which forms the duct 1 limits the movements of the movable ring 8 in the direction of opening.
- the external seal is also ensured by the movable ring 17 provided co-axially with the outlet mouth 5 and limited in its movements by the stop circlip 18 carried by the outer wall of the tube which forms the mouth 5 and by the fixed ring 19 welded to the head 20 of the machine.
Landscapes
- Centrifugal Separators (AREA)
Abstract
Description
La présente invention a pour objet un séparateur centrifuge de liquides, plus particulierement destiné à être utilisé dans l'industrie laitière, mais qui peut également être employé pour des huiles minérales ou végétales ou pour d'autres mélanges liquides, l'effet de la force centrifuge agissant sur lesdits liquides pour séparer leurs constituants présentant des densités différentes.The subject of the present invention is a centrifugal liquid separator, more particularly intended for use in the dairy industry, but which can also be used for mineral or vegetable oils or for other liquid mixtures, the effect of force. centrifugal acting on said liquids to separate their constituents having different densities.
Un séparateur de ce type a été décrit pat US-A-4 810 240.A separator of this type has been described by US-A-4,810,240.
Dans cette Demande on prévoyait que les liquides de densités différentes séparés par centrifugation au moyen de l'appareillage sont dirigés vers le haut à l'intérieur de conduits annulaires concentriques ménagés dans la partie tournante de la machine, afin d'être ensuite envoyés dans des destinations différentes à travers des conduits pratiqués dans la tête fixe de ladite machine.In this Application, it was provided that liquids of different densities separated by centrifugation by means of the apparatus are directed upwards inside concentric annular conduits formed in the rotating part of the machine, in order then to be sent into different destinations through conduits made in the fixed head of said machine.
L'étanchéité totale entre la partie tournante et la tête fixe de la machine était assurée à l'aide d'anneaux mobiles qui tournent avec la partie tournante de la machine et qui entrent en contact avec des anneaux élastiquement fixés à la partie supérieure fixe de celle-ci, en éliminant ainsi toute possibilité de contact entre les différentes phases liquides et l'atmosphère.The total seal between the rotating part and the fixed head of the machine was ensured by means of movable rings which rotate with the rotating part of the machine and which come into contact with rings elastically fixed to the fixed upper part of this, thereby eliminating any possibility of contact between the different liquid phases and the atmosphere.
Des conduits appropriés parcourus par de l'eau de refroidissement sous pression opèrent le refroidissement des anneaux fixes comme des anneaux tournants d'étanchéité.Appropriate conduits traversed by pressurized cooling water cool the stationary rings like rotary sealing rings.
L'étanchéité entre les anneaux mobiles et les anneaux fixes était obtenue, dans la solution antérieure, par des ressorts appropriés qui agissent sur les anneaux qui ne tournent pas, en étant disposés sur la partie fixe de la machine, mais qui étant soumis à l'action des ressorts de compression qui les repoussent vers le bas, sont contraints de se maintenir au contact des anneaux mobiles prévus dans la partie tournante de la machine, en évitant de la sorte que les liquides sépares par la force centrifuge reviennent se mélanger entre eux.The seal between the movable rings and the fixed rings was obtained, in the previous solution, by suitable springs which act on the rings which do not rotate, being arranged on the fixed part of the machine, but which are subjected to the action of the compression springs which push them down, are forced to keep in contact with the movable rings provided in the rotating part of the machine, avoiding so that the liquids separated by centrifugal force come back to mix with each other .
Cette solution engendre néanmoins certains inconvénients dus par dessus tout à la complexité des circuits hydrauliques intéressés par la séparation des liquides, ainsi qu'à la présence des ressorts de compression qui constituent des éléments relativement vulnérables, nécessitant un contrôle permanent et des remplacements fréquents, ne serait-ce que par suite des caractéristiques des liquides traités.This solution nevertheless generates certain drawbacks due above all to the complexity of the hydraulic circuits interested in the separation liquids, as well as the presence of compression springs which constitute relatively vulnerable elements, requiring constant monitoring and frequent replacement, if only as a result of the characteristics of the liquids treated.
Ces inconvénients sont éliminés moyennant adoption du séparateur centrifuge suivant l'invention tel que défini à la revendication 1.These drawbacks are eliminated by adopting the centrifugal separator according to the invention as defined in
Plus particulièrement la tête fixe de la machine est très simplifiée et l'étanchéité entre les différents conduits axiaux est obtenue à l'aide d'anneaux profilés, mobiles par rapport aux parties fixes de la machine et qui entrent en contact avec des anneaux, fixes par rapport aux parties tournantes de la machine, sous l'effet de la pression elle-même des liquides qui agit sur ces anneaux mobiles, ce qui permet d'obtenir par dessus tout une simplification considérable des circuits hydrauliques tout en permettant d'éliminer la présence de ressorts d'un type quelconque, en facilitant de la sorte le contrôle et la maintenance de la machine.More particularly the fixed head of the machine is very simplified and the seal between the various axial conduits is obtained using profiled rings, movable relative to the fixed parts of the machine and which come into contact with fixed rings. relative to the rotating parts of the machine, under the effect of the pressure itself of the liquids which acts on these movable rings, which makes it possible above all to obtain a considerable simplification of the hydraulic circuits while making it possible to eliminate the presence of springs of any type, thereby facilitating the control and maintenance of the machine.
Le positionnement particulier des anneaux d'étanchéité a pour conséquence que ces anneaux sont directement léchés par les constituants des liquides traités dans la machine, ce qui entraîne l'absorption de la chaleur produite par le déplacement desdits anneaux et évite la nécessité de devoir assurer leur refroidissement à l'aide de la circulation d'eau prévue dans la demande de brevet précédemment citée.The particular positioning of the sealing rings has the consequence that these rings are directly licked by the constituents of the liquids treated in the machine, which results in the absorption of the heat produced by the movement of said rings and avoids the need to have to ensure their cooling using the water circulation provided for in the aforementioned patent application.
L'invention va maintenant être décrite de manière plus détaillée dans ce qui va suivre, avec l'aide du dessin annexé :
La figure unique de ce dessin est une coupe axiale partielle montrant la partie supérieure du séparateur centrifuge suivant l'invention.The invention will now be described in more detail in the following, with the help of the attached drawing:
The single figure of this drawing is a partial axial section showing the upper part of the centrifugal separator according to the invention.
Sur ce dessin on notera que le liquide à traiter pénètre dans le séparateur centrifuge à travers le conduit central 1 pour ressortir, à l'état séparé de ses deux phases à poids spécifiques différents, à travers les conduits co-axiaux 2 et 3.In this drawing, it will be noted that the liquid to be treated enters the centrifugal separator through the
Plus précisément la phase à plus faible poids spécifique qui remonte à travers le conduit co-axial 2 le plus intérieur est amenée au conduit co-axial 4 prévu dans la tête fixe de la machine pour déboucher dans des ouies de sortie, tandis que la phase à poids spécifique le plus élevé qui remonte par le conduit co-axial extérieur 3 s'échappe à travers la bouche de sortie 5 ménagée dans la partie fixe de la machine.More precisely, the phase with lower specific gravity which goes up through the
Les flèches qui apparaissent sur le dessin indiquent les parcours suivis par les différentes phases liquides.The arrows which appear on the drawing indicate the courses followed by the various liquid phases.
L'étanchéité entre le conduit central d'entrée 1 et le premier conduit co-axial de sortie 2 est assurée par l'anneau 6, qui est fixé à la partie centrale 7 du rotor et contre lequel vient s'appliquer l'anneau mobile 8, prévu co-axialement au conduit central 1, lequel anneau vient par sa lèvre supérieure 8' au contact de l'anneau fixe 6, sous l'effet de poussée de la pression du liquide du conduit 1, pression qui s'exerce suivant le sens indiqué par les flèches 9.The seal between the
Le circlip de butée 10 porté par le tube central qui forme le conduit 1 limite les déplacements de l'anneau mobile 8 dans le sens de l'ouverture.The
D'une manière analogue l'étanchéité entre les liquides des conduits co-axiaux 2 et 3 est assurée par l'anneau fixe 11 porté par le disque 12 qui ferme vers le haut le conduit 2 et par les deux anneaux 13 et 14 dont le mouvement est limité par les circlips de butée 15 et 16 fixés au tube qui définit le conduit 4, lesquels anneaux sont soumis à la pression respectivement du liquide de la phase légère provenant du conduit 2 et du liquide de la phase lourde provenant du conduit 3.Similarly, the seal between the liquids of the
De la même manière encore l'étanchéité extérieure est assurée par l'anneau mobile 17 prévu co-axialement à la bouche de sortie 5 et limité dans ses mouvements par le circlip de butée 18 porté par la paroi extérieure du tube qui forme la bouche 5 et par l'anneau fixe 19 soudé sur la tête 20 de la machine.Similarly, the external seal is also ensured by the
On comprend sans peine les avantages présentés par la forme de réalisation ci-dessus décrite de la tête du séparateur centrifuge de liquides à moyens d'étanchéité tournants suivant l'invention, par rapport à la tête correspondante du séparateur qui fait l'objet de US-A-4 810 240, et ce en ce qui concerne aussi bien la simplification structurelle notable de l'appareillage que l'absence de tout élément élastique (en l'occurence de ressort), du fait que l'étanchéité entre les anneaux mobiles et les anneaux fixes est assurée par la pression elle-même exercée par le liquide sur lesdits anneaux mobiles.It is easy to understand the advantages presented by the embodiment described above of the head of the centrifugal liquid separator with rotating sealing means according to the invention, compared to the corresponding head of the separator which is the subject of US -A-4 810 240, and with regard to simplification as well noteworthy structural aspect of the apparatus as the absence of any elastic element (in this case a spring), owing to the fact that the seal between the movable rings and the fixed rings is ensured by the pressure itself exerted by the liquid on said movable rings.
On soulignera par ailleurs l'avantage obtenu par suite du fait que le refroidissement des anneaux est opéré par les liquides traités eux-mêmes, ce qui évite de prévoir un refroidissement à l'aide d'une circulation forcée d'eau.It will also be emphasized the advantage obtained as a result of the fact that the cooling of the rings is effected by the liquids treated themselves, which avoids providing for cooling by means of a forced circulation of water.
Claims (2)
- Centrifugal separator having sealing means provided for rotation on the fixed upper head, of the type comprising a rotating body inside which the liquid to be treated is introduced whilst the phases separated by difference in densities rise inside concentric annular conduits, characterised in that the sealing means which ensure separation of the different liquid phases are constituted by rings (8, 13, 14, 17), movable in relation to the fixed parts of the machine, and adapted to move axially under the effect of the very pressure of the liquid acting on the movable rings, whereby the ring (8) acts on the tube defining the central conduit (1), the rings (13-14) on a central coaxial tube (4), and the ring (17) on the outer tube defining the exit opening (5), so as to come into contact with rings (6, 11, 19), fixed in relation to the rotating parts of the machine, thereby ensuring the seal between the conduit (1) for the entry of the liquid to be treated and the conduits (4, 5) for the exit of the liquids separated by centrifugal force.
- Centrifugal separator according to claim 1, characterised in that the cooling of the sealing rings is brought about by the liquids treated in the machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT88112188T ATE102496T1 (en) | 1987-08-03 | 1988-07-28 | SEPARATION CENTRIFUE WITH AXIAL INLETS AND OUTLETS. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT85588/87A IT1218817B (en) | 1987-08-03 | 1987-08-03 | CENTRIFUGAL SEPARATOR REFINEMENTS WITH ROTARY SEALS ON THE FIXED UPPER HEAD |
| IT8558887 | 1987-08-03 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0302386A2 EP0302386A2 (en) | 1989-02-08 |
| EP0302386A3 EP0302386A3 (en) | 1991-04-17 |
| EP0302386B1 true EP0302386B1 (en) | 1994-03-09 |
Family
ID=11328559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP88112188A Expired - Lifetime EP0302386B1 (en) | 1987-08-03 | 1988-07-28 | Centrifugal separator with axial inlets and outlets |
Country Status (14)
| Country | Link |
|---|---|
| EP (1) | EP0302386B1 (en) |
| JP (1) | JPS6490050A (en) |
| KR (1) | KR890003454A (en) |
| CN (1) | CN1015294B (en) |
| AT (1) | ATE102496T1 (en) |
| AU (1) | AU606967B2 (en) |
| CA (1) | CA1331977C (en) |
| CZ (1) | CZ541088A3 (en) |
| DD (1) | DD272420A5 (en) |
| DE (1) | DE3888258D1 (en) |
| IT (1) | IT1218817B (en) |
| PL (1) | PL273983A1 (en) |
| RO (1) | RO105379B1 (en) |
| SU (1) | SU1667628A3 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001503369A (en) * | 1995-04-18 | 2001-03-13 | アドバンスト・モレキュラー・テクノロジーズ・リミテッド・ライアビリティ・カンパニー | Method for conditioning a hydrocarbon fluid and apparatus for implementing the method |
| DE20010743U1 (en) | 2000-06-16 | 2000-10-12 | Westfalia Separator Food Tec GmbH, 59302 Oelde | Centrifuge with double inlet |
| MD892Z (en) * | 2014-05-26 | 2015-10-31 | Николае ЛАПОВЩЮК | Device and process for separating a liquid homogeneous mixture |
| DE102015117375A1 (en) * | 2015-10-13 | 2017-04-13 | Gea Mechanical Equipment Gmbh | separator |
| CN105675249B (en) * | 2016-03-28 | 2018-06-19 | 北京航天长征飞行器研究所 | A kind of sliding extension device for motion platform thermal protection stable water supply |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2651455A (en) * | 1950-07-07 | 1953-09-08 | Laval Separator Co De | Seal for centrifugal separators |
| US3126338A (en) * | 1959-11-30 | 1964-03-24 | Hermetically sealable mounting means | |
| CH470612A (en) * | 1968-01-25 | 1969-03-31 | Bbc Brown Boveri & Cie | Floating ring seal |
| SU772567A2 (en) * | 1977-03-23 | 1980-10-23 | Севастопольский Приборостроительный Институт | Apparatus for cleaning water from oil products |
| US4194745A (en) * | 1979-05-02 | 1980-03-25 | Mcdougal Thomas L | Controlled clearance seal |
| GB8332074D0 (en) * | 1983-12-01 | 1984-01-11 | Flexibox Ltd | Backup seal |
| US4722534A (en) * | 1985-12-18 | 1988-02-02 | Borg-Warner Industrial Products, Inc. | Face seal with automatic face convergence means |
-
1987
- 1987-08-03 IT IT85588/87A patent/IT1218817B/en active
-
1988
- 1988-07-14 AU AU19027/88A patent/AU606967B2/en not_active Ceased
- 1988-07-20 CA CA000572559A patent/CA1331977C/en not_active Expired - Fee Related
- 1988-07-26 KR KR1019880009407A patent/KR890003454A/en not_active Application Discontinuation
- 1988-07-28 DE DE88112188T patent/DE3888258D1/en not_active Expired - Lifetime
- 1988-07-28 EP EP88112188A patent/EP0302386B1/en not_active Expired - Lifetime
- 1988-07-28 AT AT88112188T patent/ATE102496T1/en active
- 1988-07-30 PL PL27398388A patent/PL273983A1/en unknown
- 1988-08-01 DD DD88318538A patent/DD272420A5/en not_active IP Right Cessation
- 1988-08-01 RO RO134751A patent/RO105379B1/en unknown
- 1988-08-02 SU SU884356307A patent/SU1667628A3/en active
- 1988-08-02 CZ CS885410A patent/CZ541088A3/en unknown
- 1988-08-03 JP JP63194314A patent/JPS6490050A/en active Pending
- 1988-08-03 CN CN88104868A patent/CN1015294B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IT8785588A0 (en) | 1987-08-03 |
| EP0302386A3 (en) | 1991-04-17 |
| KR890003454A (en) | 1989-04-14 |
| IT1218817B (en) | 1990-04-19 |
| AU1902788A (en) | 1989-02-09 |
| CZ541088A3 (en) | 1993-02-17 |
| CN1031032A (en) | 1989-02-15 |
| CA1331977C (en) | 1994-09-13 |
| AU606967B2 (en) | 1991-02-21 |
| EP0302386A2 (en) | 1989-02-08 |
| RO105379B1 (en) | 1994-11-14 |
| DD272420A5 (en) | 1989-10-11 |
| CN1015294B (en) | 1992-01-15 |
| ATE102496T1 (en) | 1994-03-15 |
| DE3888258D1 (en) | 1994-04-14 |
| JPS6490050A (en) | 1989-04-05 |
| SU1667628A3 (en) | 1991-07-30 |
| PL273983A1 (en) | 1989-04-17 |
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