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WO2004024297A1 - Separateur centrifuge - Google Patents

Separateur centrifuge Download PDF

Info

Publication number
WO2004024297A1
WO2004024297A1 PCT/SE2003/001384 SE0301384W WO2004024297A1 WO 2004024297 A1 WO2004024297 A1 WO 2004024297A1 SE 0301384 W SE0301384 W SE 0301384W WO 2004024297 A1 WO2004024297 A1 WO 2004024297A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
outlet
solid
gas
hole
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.)
Ceased
Application number
PCT/SE2003/001384
Other languages
English (en)
Inventor
Torgny Lagerstedt
Claes Inge
Peter Franzén
Olev Maehans
Martin Sandgren
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Grimaldi Development AB
Original Assignee
3Nine AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 3Nine AB filed Critical 3Nine AB
Priority to AU2003257751A priority Critical patent/AU2003257751A1/en
Priority to DE10393196.1T priority patent/DE10393196B4/de
Publication of WO2004024297A1 publication Critical patent/WO2004024297A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • B01D45/14—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by rotating vanes, discs, drums or brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B5/00—Other centrifuges
    • B04B5/12—Centrifuges in which rotors other than bowls generate centrifugal effects in stationary containers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B5/00—Other centrifuges
    • B04B5/12—Centrifuges in which rotors other than bowls generate centrifugal effects in stationary containers
    • B04B2005/125—Centrifuges in which rotors other than bowls generate centrifugal effects in stationary containers the rotors comprising separating walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
    • F01M2013/0422—Separating oil and gas with a centrifuge device

Definitions

  • the present invention relates to a centrifugal separator for separating solid and/or liquid particles suspended in gas media, comprising a rotor which is provided with deposit means, said rotor being rotatably mounted in a surrounding, stationary housing and having a central inlet for the gas medium to be cleaned, said housing having, firstly, an outlet for cleaned gas, which, when passing through the deposit means in the rotor, has been freed of solid and/or liquid particles, and, secondly, an outlet for the solid and/or liquid particles first deposited on the deposit means and thereafter transferred, by centrifugal force, to a lateral wall of the housing, the outlet for the solid and/or liquid particles having the form of at least one through-hole in the lateral wall of the housing
  • the rotor In order to achieve effective purification of gases from solid or liquid particles suspended therein with the aid of a centrifugal separator, the rotor is provided with de- positing means in the form of a large number of tightly stacked plates, such as conical discs, or a plurality of curved axial plates, or some other form of depositing means having an equivalent function.
  • the gas to be purified flows into a central inlet well in the rotor, whereafter the particles in the gas are caused to precipitate and be deposited onto the depositing means as the gas flows radially out of the rotor.
  • the deposited particles then slide outwardly along the depositing means and are finally thrown out onto the surrounding stationary housing wall as a result of the centrifugal forces.
  • the particles caught on the housing wall are then transported in helical rivulets along the wall towards a collection device due to the axial and tangential flow components of the gas in the housing.
  • the collection device can have the form of a circumferential gutter, in which the particle flows (rivulets) are collected in a ring shape, and whereafter the particle ring is drained out via drain holes from the gutter.
  • the inwardly directed baffle ledge creates on its upstream side a vortex which generates an air cushion.
  • the air cushion forms a barrier for rivulets flowing towards the outlet and drops of liquid or solid particles so that they are formed into a stationary ring upstream of the baffle ledge.
  • Fig. 1 is a schematic side view of a centrifugal separator according to the invention
  • Fig. 2 is a view similar to Fig. 1 with the rotor unit removed, showing schematically the direction of flow of the gas in the housing and the liquid or particle flow entrained to the inside of the housing wall;
  • Fig. 3 is a fragmentary enlarged side sectional view of the area of the separator housing closest to the outlet for the separated liquid or particles;
  • Fig. 4 is a view similar to Fig. 3 showing an alternative embodiment of a baffle ledge;
  • Fig. 5 is a schematic perspective view from inside of the area shown in Fig. 3 but where the outlet holes are exemplified with an essentially axial slot and where a rib on the inside of the housing steers the particle flows towards the slot;
  • Fig. 6 is a cross section through the housing with radial holes, as seen from above;
  • Fig. 7 is a view similar to Fig. 6 but with tangentially directed holes.
  • a centrifugal separator according to the invention is generally designated 10.
  • the separator is used for separation of solid and/or liquid particles suspended in gas media, e.g. for cleaning air containing an oil mist or other verifying particles.
  • gas media e.g. for cleaning air containing an oil mist or other verifying particles.
  • the centrifugal separator 10 according to the invention is so compact that it can be placed directly on the machine which produces a polluted gas medium, and makes it possible to purify such polluted air so effectively that it can be released into the room directly at the process machine or machines in question.
  • the centrifugal separator 10 comprises a rotor 12 with a plurality of depositing means mounted thereon in the form of disc plates 14.
  • the disc plates 14, onto which solid and/or liquid particles suspended in the gas are to be deposited, can have the form shown in Fig. 1, viz. conical disc elements stacked on each other with a small axial space therebetween.
  • the rotor 12 is driven by a motor 16 via a shaft 18.
  • a stationary, conically shaped housing 20 surrounds the rotor 12 and has a connection piece 22 for inlet of the gas to be cleaned.
  • the connection piece 22 is directly centred at the inlet well 26 of the rotor 12.
  • the conical lateral wall 28 of the housing 20 has on its interior surface a radially inwardly directed annular flange or baffle 30 at a level somewhat below the bottom end of the portion of the rotor 12 containing the disc plates 14. Beneath the baffle ring 30 there are outlet openings 32 for the cleaned gas in the lateral wall 28. Spaced above the baffle ledge 30 there are exit holes 34 for the solid particles or liquid separated from the gas. These holes are disposed in the lateral wall 28 of the housing 20. These holes 34 can be made radially (Fig. 6) or tangentially in the gas vortex direction of the housing (Fig. 7).
  • the exit holes 34 can have circular cross sec- tional shape or take the shape of elongated slot-shaped openings extending essentially axially, as is shown in Fig. 4.
  • the holes 34 can have a constant cross-sectional area through the housing wall 28 or can have increasing cross-sectional area in the flow direction (Figs. 6 and 7).
  • the gas to be cleaned flows into the central inlet well 26 in the rotor 12 and the particles in the gas are then caused to be deposited on the disc plates 14 as the gas flows radially out of the rapidly rotating rotor 12.
  • the deposited particles then slide along the plates 14 and are finally thrown over onto the surrounding stationary housing wall 28 by the centrifugal forces.
  • the solid and/or liquid particles due to the axial and tangential flow in the housing, have a helical flow direction along the inside of the housing wall 28, forming drops or rivulets of liquid or solid particles, as indicated by the arrows in Fig. 2.
  • an eddy 36 creating a gas cushion is created, as shown in Fig. 3, on top of the ledge 30.
  • This annular gas cushion 36 forms a barrier which stops the obliquely downwardly flowing rivulets of liquid or solid particles so that a ring 38 of collected liquid/particles is formed around the inside of the housing wall 28.
  • the outlet holes 34 are placed level with the ring 38 formed on the housing wall 28. This provides for smooth drainage from the housing of the liquid/particles collected on the hous- ing wall 28, providing effective removal of collected liquid/particles.
  • Fig. 4 shows a conceivable alternative design of the baffle.
  • the baffle 30 is provided with an inner upwardly directed edge 39, or the like, to form a gutter, in which remaining liquid /solid particles can be collected when the centrifuge is stopped.
  • the gutter can have a sealable drain for removal of residual liquid when the centrifuge is standing still.
  • the inside of the housing wall 28 can be arranged with riblike elements 42 which can guide the flow of liquid or particles on the housing wall 28 directly to the outlet holes 34. Furthermore, it is conceivable to make the axial extent of the outlet holes 34 and the vertical position of the holes above the baffle 30 adjustable in a manner not shown in more detail here, to adapt a single centrifugal separator to different operating conditions.
  • the stationary housing in the most preferred embodiment shown in the drawings is conical with diameter increasing towards the outlet holes 34, it is possi- ble to make the lateral wall of the housing circular cylindrical or reverse conical, i.e. with shortening diameter towards the outlet holes.
  • baffle elements on the inside of the housing with associated outlet holes located upstream of the holes, for example, if the airflows downstream of the rotor are allowed to flow to either end of the housing.
  • the solution suggested according to the invention makes it possible to achieve an effective and continuously gas-cleaning centrifugal separator with so compact dimensions that it can be placed directly on the machine or equipment producing the gas which must be cleaned, without the need to use filters coupled thereafter.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Centrifugal Separators (AREA)
  • Separating Particles In Gases By Inertia (AREA)

Abstract

L'invention concerne un séparateur centrifuge (10) permettant de séparer des particules solides et/ou liquides en suspension dans un milieu gazeux. Ce séparateur centrifuge (10) comprend un rotor (12) monté rotatif dans un logement fixe environnant (20). Le logement comprend, une sortie (32) pour le gaz nettoyé qui, lorsqu'il passe à travers le rotor, a été débarrassé de ses particules solides et/ou liquides et une sortie (34) pour les particules solides et/ou liquides transférées sur la paroi latérale (28) du logement. La sortie (34) pour les particules solides et/ou liquides se présente sous la forme d'au moins un trou traversant, de préférence d'une pluralité de trous traversants pratiqués dans la paroi latérale du logement. Selon l'invention, un élément de dérivation circulaire (30), orienté sensiblement vers l'intérieur de la paroi latérale du logement, est disposé en aval du trou (34) à une distance telle que, pendant le fonctionnement, un coussin gazeux, généré en amont de l'élément de dérivation, crée un cercle (38) constitué des particules solides et/ou liquides, au niveau du trou de sortie (34).
PCT/SE2003/001384 2002-09-10 2003-09-05 Separateur centrifuge Ceased WO2004024297A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2003257751A AU2003257751A1 (en) 2002-09-10 2003-09-05 A centrifugal separator
DE10393196.1T DE10393196B4 (de) 2002-09-10 2003-09-05 Zentrifugalabscheider

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0202671A SE523690C2 (sv) 2002-09-10 2002-09-10 Anordning vid en centrifugalseparator
SE0202671-4 2002-09-10

Publications (1)

Publication Number Publication Date
WO2004024297A1 true WO2004024297A1 (fr) 2004-03-25

Family

ID=20288942

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2003/001384 Ceased WO2004024297A1 (fr) 2002-09-10 2003-09-05 Separateur centrifuge

Country Status (4)

Country Link
AU (1) AU2003257751A1 (fr)
DE (1) DE10393196B4 (fr)
SE (1) SE523690C2 (fr)
WO (1) WO2004024297A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007073320A1 (fr) * 2005-12-20 2007-06-28 3Nine Ab Dispositif de nettoyage des gaz de carter
WO2007094726A1 (fr) * 2006-02-13 2007-08-23 Alfa Laval Corporate Ab Separateur centrifuge
EP1984093A4 (fr) * 2006-02-13 2012-01-11 Alfa Laval Corp Ab Séparateur centrifuge
CN102481504A (zh) * 2009-06-11 2012-05-30 Ntnu技术转移股份有限公司 用于气/液流的分离器
CN102821866A (zh) * 2010-04-09 2012-12-12 阿尔法拉瓦尔股份有限公司 离心分离器
KR101396080B1 (ko) * 2006-02-13 2014-05-15 알파 라발 코포레이트 에이비 원심 분리기
EP2946836A1 (fr) * 2014-05-23 2015-11-25 Alfa Laval Corporate AB Séparateur centrifuge
WO2017151046A1 (fr) * 2016-03-02 2017-09-08 Enjay Filtration Ab Système, procédé et filtre de ventilation
EP4534208A1 (fr) 2023-10-02 2025-04-09 Alfdex AB Agencement de séparateur et machine-outil

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202007010776U1 (de) * 2007-07-31 2008-12-11 Hengst Gmbh & Co.Kg Ölnebelabscheider für eine Brennkraftmaschine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001036103A1 (fr) * 1999-11-15 2001-05-25 Alfa Laval Ab Procede et dispositif d'epuration de gaz
WO2002020954A1 (fr) * 2000-09-09 2002-03-14 Mahle Filtersysteme Gmbh Dispositif de ventilation pour un carter de vilebrequin
SE519180C2 (sv) * 2001-06-12 2003-01-28 Scania Cv Ab Separeringsanordning för vevhusgaser

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001036103A1 (fr) * 1999-11-15 2001-05-25 Alfa Laval Ab Procede et dispositif d'epuration de gaz
WO2002020954A1 (fr) * 2000-09-09 2002-03-14 Mahle Filtersysteme Gmbh Dispositif de ventilation pour un carter de vilebrequin
SE519180C2 (sv) * 2001-06-12 2003-01-28 Scania Cv Ab Separeringsanordning för vevhusgaser

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007073320A1 (fr) * 2005-12-20 2007-06-28 3Nine Ab Dispositif de nettoyage des gaz de carter
US8171920B2 (en) 2005-12-20 2012-05-08 3nineAB Device for cleaning crank case gases
WO2007094726A1 (fr) * 2006-02-13 2007-08-23 Alfa Laval Corporate Ab Separateur centrifuge
US7811347B2 (en) 2006-02-13 2010-10-12 Alfa Laval Corporate Ab Centrifugal separator
CN101384328B (zh) * 2006-02-13 2011-01-12 阿尔法拉瓦尔股份有限公司 离心式分离器
EP1984093A4 (fr) * 2006-02-13 2012-01-11 Alfa Laval Corp Ab Séparateur centrifuge
EP1991337A4 (fr) * 2006-02-13 2012-01-11 Alfa Laval Corp Ab Separateur centrifuge
EP1993702B2 (fr) † 2006-02-13 2022-11-02 Alfa Laval Corporate AB Separateur centrifuge
KR101396080B1 (ko) * 2006-02-13 2014-05-15 알파 라발 코포레이트 에이비 원심 분리기
EP1993702B1 (fr) 2006-02-13 2018-03-28 Alfa Laval Corporate AB Separateur centrifuge
CN102481504A (zh) * 2009-06-11 2012-05-30 Ntnu技术转移股份有限公司 用于气/液流的分离器
US9512755B2 (en) 2010-04-09 2016-12-06 Alfa Laval Corporate Ab Centrifugal separator
CN102821866A (zh) * 2010-04-09 2012-12-12 阿尔法拉瓦尔股份有限公司 离心分离器
WO2015176968A1 (fr) * 2014-05-23 2015-11-26 Alfa Laval Corporate Ab Séparateur centrifuge
CN106457265A (zh) * 2014-05-23 2017-02-22 阿尔法拉瓦尔股份有限公司 离心分离器
US20170173596A1 (en) * 2014-05-23 2017-06-22 Alfa Laval Corporate Ab A centrifugal separator
EP2946836A1 (fr) * 2014-05-23 2015-11-25 Alfa Laval Corporate AB Séparateur centrifuge
US10357786B2 (en) 2014-05-23 2019-07-23 Alfa Laval Corporate Ab Centrifugal separator
US20190063756A1 (en) * 2016-03-02 2019-02-28 Enjay Ab System, method and a filter for ventilation
JP2019508244A (ja) * 2016-03-02 2019-03-28 エンジェイ エービー 換気のためのシステム、方法およびフィルタ
CN108700309A (zh) * 2016-03-02 2018-10-23 恩杰公司 用于通风的系统、方法和过滤器
US10920993B2 (en) 2016-03-02 2021-02-16 Enjay Ab System, method and a filter for ventilation
CN108700309B (zh) * 2016-03-02 2021-03-12 恩杰公司 用于通风的系统、方法和过滤器
WO2017151046A1 (fr) * 2016-03-02 2017-09-08 Enjay Filtration Ab Système, procédé et filtre de ventilation
EP4534208A1 (fr) 2023-10-02 2025-04-09 Alfdex AB Agencement de séparateur et machine-outil
WO2025073421A1 (fr) 2023-10-02 2025-04-10 Alfdex Ab Agencement de séparateur et machine-outil

Also Published As

Publication number Publication date
DE10393196B4 (de) 2016-08-18
DE10393196T5 (de) 2005-08-25
SE0202671D0 (sv) 2002-09-10
AU2003257751A1 (en) 2004-04-30
SE0202671L (sv) 2004-03-11
SE523690C2 (sv) 2004-05-11

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