WO2013083452A1 - Dispositif de séparation comprenant deux cellules de cyclone - Google Patents

Dispositif de séparation comprenant deux cellules de cyclone Download PDF

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Publication number
WO2013083452A1
WO2013083452A1 PCT/EP2012/073800 EP2012073800W WO2013083452A1 WO 2013083452 A1 WO2013083452 A1 WO 2013083452A1 EP 2012073800 W EP2012073800 W EP 2012073800W WO 2013083452 A1 WO2013083452 A1 WO 2013083452A1
Authority
WO
WIPO (PCT)
Prior art keywords
discharge
cyclone
separating device
exhaust air
separator
Prior art date
Application number
PCT/EP2012/073800
Other languages
German (de)
English (en)
Inventor
Reinhard Oelpke
Original Assignee
Mann+Hummel Gmbh
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 Mann+Hummel Gmbh filed Critical Mann+Hummel Gmbh
Publication of WO2013083452A1 publication Critical patent/WO2013083452A1/fr

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Classifications

    • 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
    • B04C3/04—Multiple arrangement thereof
    • 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
    • B01D45/16—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream, the centrifugal forces being generated solely or partly by mechanical means, e.g. fixed swirl vanes
    • 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
    • B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/022—Air cleaners acting by gravity, by centrifugal, or by other inertial forces, e.g. with moistened walls
    • F02M35/0223—Air cleaners acting by gravity, by centrifugal, or by other inertial forces, e.g. with moistened walls by centrifugal forces, e.g. cyclones
    • 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
    • B04C2003/006—Construction of elements by which the vortex flow is generated or degenerated
    • 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
    • B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
    • B04C2009/002—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks with external filters

Definitions

  • the present invention relates to a separation device for separating particles from an intake air of an internal combustion engine. Furthermore, the present invention relates to an arrangement for cleaning an intake air of an internal combustion engine.
  • Cyclone cells which are also called cyclone, cyclone filters, cyclone separators or centrifugal separators, serve for the separation of solid or liquid particles contained in fluids.
  • a fluid flowing into a cyclone cell is directed such that centrifugal forces accelerate the particles to be separated from the fluid to the outside and deliver them to a discharge device.
  • centrifugal forces are mostly used nozzles, which have vanes, which generate an eddy current within a housing of the cyclone cell.
  • An object of the present invention is to provide a separation device which is small in construction and has a high separation efficiency.
  • the separation device comprises two cyclone cells and a discharge device.
  • the cyclone cells are adapted to cause two raw air streams containing the intake air in opposite directions in rotation.
  • the discharge device is set up to lead out tangentially an exhaust air stream having the particles from a respective cyclone cell and to combine the exhaust air streams in a common exhaust air flow.
  • the fact that the discharge unit combines both exhaust air streams to a common exhaust air stream, the two cyclone cells can be arranged very close to each other. Accordingly, the separation device builds small. Furthermore, there is a constructional simplification in that the common exhaust air flow can be sucked off by a single suction device. In addition, the common exhaust air stream evened out the flow through a respective cyclone cell. This improves the degree of separation.
  • a housing of the deposition device can thereby be manufactured as a single part, for example made of plastic, whereby additional connecting elements and sealing measures omitted. In addition, this may result in a more compact design.
  • any particles ie solid and liquid particles
  • the separation device instead of the two raw air flows, in this case two first fluid streams entering the two cyclone cells are rotated in opposite directions. Accordingly, two second fluid streams having the particles exit tangentially from a respective cyclone cell.
  • the cyclone cells may for example be designed in each case in an inline cyclone design, in which the raw air stream to be cleaned is guided axially through a cylindrical main pipe.
  • the raw air flow enters the main pipe, it is set in rotation by means of an inlet-side distributor.
  • the Rohluftstrom a helical course is imposed.
  • the particles contained in the raw air flow are transported by the centrifugal force radially outward in the direction of the wall of the main pipe and accumulate there.
  • the splitting of the raw air flow into a clean air flow and an exhaust air flow - may be accomplished, for example, by means of a dip tube having a smaller diameter than the main tube and into it the exit side is axially concentric protrudes.
  • the clean air flow that is, the less charged with particles air, enters inside through the dip tube and out of an outlet opening of the separator.
  • the exhaust air stream that is, the air more heavily laden with particles, is discharged from a respective cyclone cell through a discharge opening arranged in the wall of the main pipe.
  • the cyclone cells can also be designed in each case as spiral cyclone cells.
  • the flow is passed through a channel having a spiral shape, with the channel wall forming the nozzle.
  • a suction device To assist the common outflow with vacuum can be sucked by means of a suction device.
  • a blower, a pump or an ejector can be provided. As a result, the degree of separation is further improved.
  • the respective tangential exhaust air streams can be led out horizontally, vertically downwards or vertically upwards from a respective cyclone cell.
  • a respective cyclone cell may be followed by a distributor for swirl recovery.
  • the downstream distributor for swirl recovery may comprise a vane assembly and be integrated into a housing of the separator.
  • the downstream, that is, exit-side nozzles are partially disposed within the dip tubes of the cyclone cells, resulting in a compact design.
  • the discharge device comprises a discharge opening in an outer wall of a respective cyclone cell, through which a respective air flow can be led out.
  • the outer wall can be formed by a housing containing the two cyclone cells of the deposition device.
  • the discharge device comprises a discharge pipe, which is in gas-conducting connection with the discharge openings.
  • the delivery tube can be designed in the form of a discharge nozzle.
  • the discharge pipe may be connected to a supporting suction such as a blower, a pump or an ejector, as described above.
  • a web is arranged between the discharge openings, which ensures that the exhaust air streams can flow out of the respective cyclone cells initially undisturbed from one another in terms of flow technology and then flow together in the common discharge pipe.
  • the bridge can also be called an intermediate wall.
  • a web is attached to an edge delimiting a respective discharge opening, which web extends in the direction of the discharge pipe. From “extending in the direction of the discharge pipe”, the present case also includes the case that the web extends into the discharge pipe. This avoids that the two exhaust air flows adversely affect.
  • the webs extend towards each other. That is, the orientation of the webs deviates slightly from the tangents so that the webs converge. As a result, the respective exhaust air streams can be fluidly combined to form the common outflow stream.
  • the webs are connected to one another at their ends pointing in the direction of the delivery tube. This results in a simple, stable structure.
  • the ends of the webs are connected to one another in a connection region, which runs pointedly in the direction of the discharge tube.
  • the discharge openings preferably point towards one another and / or are arranged adjacent to one another.
  • adjacent is meant, for example, a distance of a few centimeters, for example 5-25 cm.
  • a respective web can be integrally formed with the associated edge.
  • one piece is meant herein that the respective elements consist of one and the same piece of material.
  • a respective web can be produced with the edge associated therewith, for example by injection molding.
  • the webs may be integrally formed with each other. Furthermore, the webs may be formed integrally with the discharge tube.
  • the outer walls of the two cyclone cells are integrally formed.
  • the outer walls are preferably each part of a housing of the separator.
  • the outer walls may each be part of a tube, wherein the two tubes are in particular formed integrally with each other.
  • a respective cyclone cell has a nozzle which is adapted to rotate the intake air helically or spirally.
  • the cyclone cells can be designed in inline cyclone cell construction or in spiral cyclone cell construction.
  • the arrangement has a pre-separator formed as the separating device according to the invention and a main filter having a filter element.
  • a "filter element” is to be understood here as a sieve filter.
  • the filter element can be provided interchangeably in the main filter.
  • the filter element may be formed, for example, in the form of a bellows, which flows through from the outside of the separator exiting clean air from outside to inside, or vice versa.
  • the filter element can also be designed as a double bellows with two annularly closed, star-shaped folded filter bellows.
  • the filter element may also have a different type, in particular in the form of a winding element.
  • the winding element can be formed from superposed corrugated and flat layers of a filter medium which form mutually closed channels.
  • the arrangement may, for example, have a structure which corresponds to the air filter disclosed in German patent application DE 10 2008 062 955, with the difference that the preseparator described there is replaced by the separating device according to the invention.
  • the content of the aforementioned German patent application is expressly included in the content of the present application.
  • the forwarding of the clean air from the pre-separator to the main filter can be done for example by means of an air guide part.
  • the pre-separator may also be attached directly to the main filter.
  • the pre-separator and the main filter may have a one-piece housing.
  • the air guide part and a housing of the pre-separator or the main filter may be connected by means of a welded joint.
  • an infrared or vibration welding connection can be used here.
  • other types of connection such as gluing, screwing, snapping or jamming are conceivable.
  • the dust collection chamber can not be optimally emptied in various known from the prior art solutions, which is why there is a risk of constipation.
  • a dust collecting the support by gravity is often required to ensure adequate dust discharge. Therefore, a horizontal dust discharge in solutions with dust collection is often not possible. But just such a horizontal dust discharge can be achieved by means of the deposition device according to the invention.
  • Further possible implementations of the invention also include not explicitly mentioned combinations of features or embodiments of the separation device or arrangement described above or below with regard to the exemplary embodiments.
  • the person skilled in the art will also add or modify individual aspects as improvements or additions to the respective basic form of the invention.
  • FIG. 1 shows a perspective view of an arrangement with a separating device according to one embodiment
  • FIG. 2 is an exploded perspective view of the separation device of FIG. 1;
  • Fig. 3 a section III-III of Fig. 1;
  • FIG. 4 shows a section IV-IV of FIG. 1;
  • Fig. 5A-5D the deposition device of Figure 1 in different orientations.
  • FIG. 6 shows a section through an arrangement with a separating device according to a further embodiment
  • FIG. 7 shows a section through an arrangement with a separation device according to yet another embodiment.
  • Fig. 1 shows a perspective view of an arrangement 1 for cleaning an intake air 2 of an internal combustion engine, not shown.
  • the arrangement 1 comprises a pre-separator in the form of a separation device 3 and a main filter 4.
  • the separation device 3 will be further explained below with reference to Figures 2-4,
  • Figure 2 is an exploded view of the separation device 3 of Figure 1
  • Figure 3 is a section III-III from Figure 1
  • Figure 4 shows a section IV-IV of Figure 1 shows.
  • the separation device 3 has two cyclone cells 5, 6.
  • the intake air 2 comprises two raw air streams 7, 8, wherein the raw air stream 7 of the cyclone cell 5 and the raw air stream 8 of the cyclone cell 6 is supplied.
  • the cyclone cells 5, 6 are designed according to the exemplary embodiment in inline cyclone cell construction.
  • a respective cyclone cell 5, 6 comprises a diffuser 1 1, 12 and a main pipe 13, 14.
  • the main tubes 13, 14 are connected together to form a one-piece housing 15, as can be seen in Figures 2 and 3.
  • the diffusers 1 1, 12 are each inserted into the inlet-side ends 16, 17 of the main tubes 13, 14.
  • the nozzles 1 1, 12 each have radial blades 21, 22.
  • the distributor 11 is, for example, set up to swirl the raw air stream 7 to the left in the direction of flow (see FIG. 3).
  • the distributor 12 is set up to swirl the raw air stream 8 to the right in the direction of flow.
  • dip tubes 25, 26 extend into this.
  • a nozzle 27, 28 is disposed for swirl recovery.
  • the nozzles 27, 28 may for this purpose corresponding blades 31, 32 have.
  • the raw air stream 7, 8 is divided into a clean air flow 33, 34, which emerges centrally from the corresponding dip tube 25, 26, and an exhaust air flow 35, 36 (see FIG. 4).
  • a respective exhaust air stream 35, 36 is from a respective annular space 37, 38 (see Figure 3), which is formed between the dip tube 25, 26 and the main tube 13, 14, through a discharge opening 41, 42, see Figure 4, from a respective Cyclone cell 5, 6 discharged.
  • the discharge openings 41, 42 are each formed radially in a respective main pipe 13, 14.
  • the discharge openings 41, 42 face each other and are immediately adjacent, for example, at a distance of 2-10 cm to each other.
  • a web 45, 46 is in each case attached, wherein the webs 45, 46 extend to a symmetry line 47 and into a discharge port 48 into it.
  • the cyclone cells 5, 6 are substantially mirror-symmetrical with respect to the line of symmetry 47.
  • the discharge openings 41, 42 together with the webs 45, 46 and the discharge nozzle 48 a discharge 49.
  • the webs 45, 46 are each integral with the edges 43, 44 and formed integrally with each other. In a connecting region 51, the webs 45, 46 are connected to each other and form a tip 52. Furthermore, with the edges 43, 44 of the Austragsstutzen 48 integrally formed, which extends coaxially with the line of symmetry 47.
  • an air guide 54 is attached to the housing 15 in the region of the outlet-side ends 23, 24.
  • the air guide 54 can taper in the flow direction and merge the clean air streams 33, 34 (air streams with a smaller particle fraction) to form a common clean air stream 55.
  • the air guide 54 and the housing 15 may be welded together.
  • the infrared or vibration welding is used.
  • Other types of connection such as gluing, screwing, snapping or jamming are conceivable.
  • the common clean air stream 55 is fed to the main filter 4.
  • the main filter 4 has a particularly replaceable filter element 56.
  • the filter element 56 may be formed, for example, in the form of an annularly closed, star-shaped filter bellows. According to the embodiment, the filter bellows 56 is flowed through from the outside 57 to the inside 58, wherein the clean air stream 55 is further purified. In particular smaller, remaining in the clean air flow 55 particles are filtered out. Subsequently, the still filtered clean air 61 of the internal combustion engine, not shown, is supplied.
  • FIGS. 5A-5D Various possible mounting positions of the separation device 3 are shown in FIGS. 5A-5D.
  • the discharge nozzle 48 in Figure 5A down, so that a discharge can be done here with the support of gravity.
  • FIGS. 5B and 5D the discharge nozzle 48 in each case points in the horizontal direction.
  • FIG. 5C the Discharge nozzle 48 vertically upwards.
  • oblique orientations of the Austragsstutzens 48 are conceivable.
  • FIG. 6 shows a sectional view of an arrangement 1 according to a further embodiment.
  • the arrangement 1 likewise comprises a separating device 3 and a main filter 4.
  • a single housing 62 is provided, which at the same time forms the housing 15 of the separating device 3 and furthermore a housing 63 of the main filter 4.
  • the separation device 3 and the main filter 4 are thus arranged in the immediate vicinity.
  • An air guide 54 as in the embodiment according to FIG. 1, can be dispensed with.
  • the embodiment according to FIG. 6 differs from that according to FIG. 1 in that a plurality of filter elements 56 are provided in the main filter 4.
  • the filter elements 56 are arranged side by side transversely to the flow direction, so that the clean air streams 33, 34 can also flow into a gap 64 between the filter elements 56. From there, the clean air streams 33, 34 flow through the filter elements 56 from the outside 57 to the inside 58, as already explained in connection with FIG.
  • FIG. 7 shows a sectional view of an arrangement 1 according to a further embodiment.
  • a filter element 56 is provided, which comprises an outer, annular filter bellows 65 and an inner, annular filter bellows 66.
  • the filter bellows 65, 66 form a gap 67 open towards the raw side with one another.
  • the gap 67 can each directly opposite the dip tubes 25, 26 or their center axes 71, 72.
  • sealing elements 73, 74 may be provided, which ensure a seal between the raw and clean side of the filter element 56.
  • the structure of the filter element 56 substantially corresponds to the structure known from DE 10 2008 062 955 A1.
  • the filter element 56 could also be designed or arranged differently, as described in the other exemplary embodiments of DE 10 2008 062 955 A1.
  • the filter element 56 could have a construction which has not yet been described by any of the preceding embodiments.
  • a filter element in the form of a winding element could be provided which has superimposed corrugated and flat layers of a filter medium which form mutually closed channels.

Abstract

L'invention concerne un dispositif de séparation (3) destiné à séparer des particules d'un air d'admission (2) d'un moteur à combustion interne, le dispositif comprenant deux cellules (5, 6) de cyclone qui sont conçues pour mettre en rotation en sens inverse deux flux d'air brut (7, 8) contenant l'air d'admission (2) et un dispositif de sortie (49) qui est conçu pour faire sortir tangentiellement d'une cellule de cyclone respective un flux d'air (35, 36) comprenant les particules (5, 6) et pour réunir les flux d'air (35, 36) en un flux commun d'air sortant (53).
PCT/EP2012/073800 2011-12-08 2012-11-28 Dispositif de séparation comprenant deux cellules de cyclone WO2013083452A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102011120423 2011-12-08
DE102011120423.0 2011-12-08
DE102012007308.9A DE102012007308B4 (de) 2011-12-08 2012-04-13 Abscheidevorrichtung
DE102012007308.9 2012-04-13

Publications (1)

Publication Number Publication Date
WO2013083452A1 true WO2013083452A1 (fr) 2013-06-13

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Application Number Title Priority Date Filing Date
PCT/EP2012/073800 WO2013083452A1 (fr) 2011-12-08 2012-11-28 Dispositif de séparation comprenant deux cellules de cyclone

Country Status (2)

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DE (1) DE102012007308B4 (fr)
WO (1) WO2013083452A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019221884A1 (fr) * 2018-05-18 2019-11-21 Donaldson Company, Inc. Agencement de prénettoyeur destiné à être utilisé dans la filtration d'air et procédés

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015006497B4 (de) 2014-06-02 2022-11-10 Mann+Hummel Gmbh Zyklonabscheider sowie Filtervorrichtung mit Zyklonabscheider
DE102016004497B4 (de) 2016-04-18 2019-07-04 Mann+Hummel Gmbh Abscheidevorrichtung sowie Anordnung zur Reinigung einer Ansaugluft einer Brennkraftmaschine
DE102016004496B4 (de) 2016-04-18 2019-07-04 Mann+Hummel Gmbh Abscheidevorrichtung sowie Verfahren zur Abscheidung von Partikeln aus einer Ansaugluft einer Brennkraftmaschine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB713930A (en) * 1951-10-16 1954-08-18 Oswald Xaver Heinrich Improvements relating to centrifugal dust collectors
FR2426499A1 (fr) * 1978-05-23 1979-12-21 Eurogest Boite de depoussierage pour filtration d'air
DE102005031059A1 (de) * 2005-07-02 2007-01-04 Mahle International Gmbh Als Vorfilter dienender Gaseintrittsbereich eines Gasfiltergehäuses
DE202007004476U1 (de) * 2007-03-23 2008-07-31 Mann+Hummel Gmbh Filter zur Reinigung eines Fluids
EP2042223A1 (fr) * 2007-09-27 2009-04-01 Pall Corporation Séparateur inertiel
DE102008062955A1 (de) 2008-12-23 2010-07-01 Mann + Hummel Gmbh Luftfilter mit Vorabscheider

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Publication number Priority date Publication date Assignee Title
DE10317694B4 (de) * 2003-04-17 2014-03-27 Mann + Hummel Gmbh Abscheidesystem und Ansaugsystem für eine Brennkraftmaschine eines Kraftfahrzeugs

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB713930A (en) * 1951-10-16 1954-08-18 Oswald Xaver Heinrich Improvements relating to centrifugal dust collectors
FR2426499A1 (fr) * 1978-05-23 1979-12-21 Eurogest Boite de depoussierage pour filtration d'air
DE102005031059A1 (de) * 2005-07-02 2007-01-04 Mahle International Gmbh Als Vorfilter dienender Gaseintrittsbereich eines Gasfiltergehäuses
DE202007004476U1 (de) * 2007-03-23 2008-07-31 Mann+Hummel Gmbh Filter zur Reinigung eines Fluids
EP2042223A1 (fr) * 2007-09-27 2009-04-01 Pall Corporation Séparateur inertiel
DE102008062955A1 (de) 2008-12-23 2010-07-01 Mann + Hummel Gmbh Luftfilter mit Vorabscheider

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019221884A1 (fr) * 2018-05-18 2019-11-21 Donaldson Company, Inc. Agencement de prénettoyeur destiné à être utilisé dans la filtration d'air et procédés
CN112423857A (zh) * 2018-05-18 2021-02-26 唐纳森公司 用于在空气过滤中使用的预清洁器装置和方法
US11478736B2 (en) 2018-05-18 2022-10-25 Donaldson Company Inc. Precleaner arrangement for use in air filtration and methods
EP4180111A1 (fr) * 2018-05-18 2023-05-17 Donaldson Company, Inc. Agencement de pré-nettoyeur destiné à être utilisé dans la filtration d'air

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DE102012007308A1 (de) 2013-06-13
DE102012007308B4 (de) 2018-01-18

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