EP1274498A1 - Filter for filtering gaseous media contaminated with moisture and/or oil and/or solid particles - Google Patents

Filter for filtering gaseous media contaminated with moisture and/or oil and/or solid particles

Info

Publication number
EP1274498A1
EP1274498A1 EP01931597A EP01931597A EP1274498A1 EP 1274498 A1 EP1274498 A1 EP 1274498A1 EP 01931597 A EP01931597 A EP 01931597A EP 01931597 A EP01931597 A EP 01931597A EP 1274498 A1 EP1274498 A1 EP 1274498A1
Authority
EP
European Patent Office
Prior art keywords
filter
moisture
solid particles
oil
gaseous media
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.)
Withdrawn
Application number
EP01931597A
Other languages
German (de)
French (fr)
Inventor
Günter Priess
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.)
Parker Hannifin Manufacturing Germany GmbH and Co KG
Original Assignee
Zander Aufbereitungstechnik GmbH and Co KG
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 Zander Aufbereitungstechnik GmbH and Co KG filed Critical Zander Aufbereitungstechnik GmbH and Co KG
Publication of EP1274498A1 publication Critical patent/EP1274498A1/en
Withdrawn legal-status Critical Current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
    • B01D45/16—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
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • B01D46/003—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions including coalescing means for the separation of liquid
    • 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
    • B01D46/0039—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices
    • B01D46/0041—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices for feeding
    • B01D46/0045—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices for feeding by using vanes
    • 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
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B01D46/2411—Filter cartridges
    • 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
    • B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
    • B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
    • B01D46/64—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series arranged concentrically or coaxially
    • 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

Definitions

  • the invention relates to a filter for gaseous media contaminated with moisture and / or oil and / or solid particles, having a housing having an inlet and an outlet for the gaseous medium and a pot-shaped filter element accommodated therein, the filter means of which is arranged between the inlet and the outlet ,
  • the inlet opens axially into the cup-shaped filter element which is generally open at the top and closed by a cap at the bottom.
  • the medium to be cleaned is thus forced to flow through the cylindrical wall into the chamber of the housing and from there to the outlet.
  • Moisture particles, oil particles and / or solid particles are retained by the filter medium of the filter element.
  • more or less moisture is separated due to the coalescence effect and drips down into the housing, where it can be removed via a condensate drain.
  • the invention has for its object to provide a filter with a cup-shaped filter element, based in particular on the coalescence effect, which has a long service life.
  • a filter of the type mentioned at the outset in which a pre-filter designed as a cyclone filter with a coalescence effect is interchangeably arranged upstream of the filter means.
  • the filter according to the invention because of the easily replaceable pre-filter, essential parts of the substances contaminating the medium to be cleaned are filtered out, so that the service life of the main filter which is decisive for the filter performance is considerably extended. This also leads to cost-effective operation, because the main filter, which determines the filter performance, entails much higher procurement costs than the easily replaceable but also easy-to-clean cyclone filter.
  • the filter means has the shape of a hollow cylinder, in the upper end of which the pre-filter is seated, which is designed as a hollow cylinder open at the bottom with a swirl generator arranged at its upper open end.
  • the filter medium of the pre-filter should have a coalescing effect.
  • the invention is explained in more detail below with reference to a drawing which represents an exemplary embodiment.
  • the drawing shows the filter in axial section.
  • the filter shown in the drawing has a housing which consists of a head 1 with an inlet 2 and an outlet 3 and a pot 4 which can be connected tightly to the head 1.
  • the inlet 2 opens axially and centrally in the pot 4, while the entrance to the outlet 3 is eccentric.
  • a pot-shaped filter element 5 is accommodated coaxially in the pot 4.
  • the filter element 5 has a closed bottom 5a and a hollow cylindrical filter means 5b and a head 5c, with which it is tightly connected to the head 1 of the housing, so that the medium to be cleaned enters the interior of the cylindrical filter element and is forced, the cylindrical To flow through the wall of the filter medium 5b.
  • the filter element 5 is preceded by a pre-filter 6 in the form of a cyclone filter with a coalescing effect.
  • the cyclone filter consists of a cylindrical filter means 6a open at the bottom and a swirl generator ⁇ b arranged at the upper end in the form of guide vanes. The arrangement is such that the gaseous medium flowing in via the inlet 2 is forced to pass the swirl generator 6b.
  • the essentially linear flow turns into a rotating flow implemented so that when the gaseous medium travels further through the hollow cylindrical filter means 6a, liquid particles and solid particles are deposited on the filter means ⁇ a, in particular using the coalescence. This means that only the remaining impurities in the gaseous medium have to be filtered out by the main filter 5.
  • the service life of the main filter 5 is therefore correspondingly longer.
  • the exchangeable prefilter 6 should consist of an inexpensive and / or easy-to-clean filter material, so that the operating costs of the filter remain low even when the prefilter 6 is changed frequently.

Abstract

The invention relates to a filter for filtering gaseous media contaminated with moisture and/or oil and/or solid particles. According to the invention, a pot-shaped filter element (5) is placed inside a housing (1, 4), in particular, between the inlet (2) and the outlet (3). A pre-filter (6), which can be easily removed and which functions like a cyclone filter, is located at the entry of the filter element (5). The operating costs of a filter of this type are low by virtue of the fact that the serviceable life of the actual filter is long and that the pre-filter, which can be easily replaced, does result in the accrual of any significant costs.

Description

Filter für mit Feuchtigkeit und/oder Öl und/oder Feststoffpartikeln verunreinigte, gasförmige MedienFilters for gaseous media contaminated with moisture and / or oil and / or solid particles
Die Erfindung betrifft ein Filter für mit Feuchtigkeit und/oder Öl und/oder Feststoffpartikeln verunreinigte, gasförmige Medien mit einem einen Einlaß und einen Auslaß für das gasförmige Medium aufweisenden Gehäuse und einem darin untergebrachten topfförmigen Filterelement, dessen Filtermittel zwischen dem Einlaß und dem Auslaß angeordnet ist.The invention relates to a filter for gaseous media contaminated with moisture and / or oil and / or solid particles, having a housing having an inlet and an outlet for the gaseous medium and a pot-shaped filter element accommodated therein, the filter means of which is arranged between the inlet and the outlet ,
Bei einem bekannten Filter dieser Art, das seit Jahrzehnten in der Praxis eingesetzt wird, mündet der Einlaß axial in das in der Regel oben offene und unten durch eine Kappe verschlossene topfförmige Filterelement. Das zu reinigende Medium wird so gezwungen, durch die zylindrische Wand in die Kammer des Gehäuses und von hier zu dem Auslaß zu strömen. Feuchtigkeitspartikel, Ölpartikel und/oder Feststoffpartikel werden von dem Filtermittel des Filterelementes zurückgehalten. Je nach Art des Filtermittels wird dabei mehr oder weniger Feuchtigkeit aufgrund des Koaleszenseffektes abgeschieden und tropft nach unten in das Gehäuse, wo es über einen Kondensatablauf abgeführt werden kann.In a known filter of this type, which has been used in practice for decades, the inlet opens axially into the cup-shaped filter element which is generally open at the top and closed by a cap at the bottom. The medium to be cleaned is thus forced to flow through the cylindrical wall into the chamber of the housing and from there to the outlet. Moisture particles, oil particles and / or solid particles are retained by the filter medium of the filter element. Depending on the type of filter medium, more or less moisture is separated due to the coalescence effect and drips down into the housing, where it can be removed via a condensate drain.
Neben dieser Art von topfförmigen Filtern, bei denen das zu reinigende Medium mehr oder weniger axial und radial das Filtermittel durchströmt, gibt es Zyklonfilter, insbesondere mit Koaleszenswirkung, in denen das zu reinigende Medium mit einer Drallströmung in ein hohlzylindrisches Filterelement eingeleitet wird. Die Drallströmung begünstigt die Abscheidung der im gasförmigen Medium enthaltenen verunreinigenden Partikel an der Wand des Filterelementes.In addition to this type of cup-shaped filter, in which the medium to be cleaned flows more or less axially and radially through the filter medium, there are cyclone filters, in particular with a coalescing effect, in which the medium to be cleaned is introduced into a hollow cylindrical filter element with a swirl flow. The Swirl flow favors the separation of the contaminating particles contained in the gaseous medium on the wall of the filter element.
Der Erfindung liegt die Aufgabe zugrunde, ein Filter mit einem topfförmigen, insbesondere auf dem Koaleszenseffekt beruhenden Filterelement zu schaffen, das eine lange Standzeit hat.The invention has for its object to provide a filter with a cup-shaped filter element, based in particular on the coalescence effect, which has a long service life.
Diese Aufgabe wird mit einem Filter der eingangs genannten Art gelöst, bei dem in Durchströmrichtung vor dem Filtermittel ein als Zyklonfilter mit Koaleszenseffekt ausgebildetes Vorfilter austauschbar angeordnet ist.This object is achieved with a filter of the type mentioned at the outset, in which a pre-filter designed as a cyclone filter with a coalescence effect is interchangeably arranged upstream of the filter means.
Bei dem erfindungsgemäßen Filter werden wegen des leicht austauschbaren Vorfilters wesentliche Teile der das zu reinigende Medium verunreinigenden Stoffe ausgefiltert, so daß die Standzeit des für die Filterleistung maßgeblichen Hauptfilters erheblich verlängert ist. Das führt auch zu einer kostengünstigen Betriebsweise, weil das die Filterleistung bestimmende Hauptfilter wesentlich höhere Beschaffungskosten verursacht als das leicht austauschbare aber auch leicht zu reinigende Zyklonfilter .In the filter according to the invention, because of the easily replaceable pre-filter, essential parts of the substances contaminating the medium to be cleaned are filtered out, so that the service life of the main filter which is decisive for the filter performance is considerably extended. This also leads to cost-effective operation, because the main filter, which determines the filter performance, entails much higher procurement costs than the easily replaceable but also easy-to-clean cyclone filter.
Um die Wirksamkeit des Filters zu verbessern, ist nach einer Ausgestaltung der Erfindung vorgesehen, daß das Filtermittel die Form eines Hohlzylinders hat, in dessen oberem Ende das Vorfilter sitzt, das als unten offener Hohlzylinder mit einem an seinem oberen offenen Ende angeordneten Drallerzeuger ausgebildet ist. Um die Filterwirkung weiter zu verbessern und die Standzeit des Vorfilters zu verlängern, sollte das Filtermittel des Vorfilters eine Koaleszenswirkung haben.In order to improve the effectiveness of the filter, it is provided according to one embodiment of the invention that the filter means has the shape of a hollow cylinder, in the upper end of which the pre-filter is seated, which is designed as a hollow cylinder open at the bottom with a swirl generator arranged at its upper open end. In order to further improve the filter effect and to extend the service life of the pre-filter, the filter medium of the pre-filter should have a coalescing effect.
Im folgenden wird die Erfindung anhand einer ein Ausführungsbeispiel darstellenden Zeichnung näher erläutert. Die Zeichnung zeigt das Filter im Axialschnitt .The invention is explained in more detail below with reference to a drawing which represents an exemplary embodiment. The drawing shows the filter in axial section.
Das in der Zeichnung dargestellte Filter weist ein Gehäuse auf, das aus einem Kopf 1 mit einem Einlaß 2 und einem Auslaß 3 und aus einem am Kopf 1 dicht anschließbaren Topf 4 besteht. Der Einlaß 2 mündet axial und zentral im Topf 4, während der Eingang zum Auslaß 3 exzentrisch liegt.The filter shown in the drawing has a housing which consists of a head 1 with an inlet 2 and an outlet 3 and a pot 4 which can be connected tightly to the head 1. The inlet 2 opens axially and centrally in the pot 4, while the entrance to the outlet 3 is eccentric.
In dem Topf 4 ist koaxial ein topfförmiges Filterelement 5 untergebracht. Das Filterelement 5 weist einen geschlossenen Boden 5a und ein hohlzylindrisches Filtermittel 5b sowie einen Kopf 5c auf, mit dem es am Kopf 1 des Gehäuses dicht angeschlossen ist, so daß das zu reinigende Medium in das Innere des zylinderförmigen Filterelementes gelangt und gezwungen ist, die zylindrische Wand des Filtermittels 5b zu durchströmen.A pot-shaped filter element 5 is accommodated coaxially in the pot 4. The filter element 5 has a closed bottom 5a and a hollow cylindrical filter means 5b and a head 5c, with which it is tightly connected to the head 1 of the housing, so that the medium to be cleaned enters the interior of the cylindrical filter element and is forced, the cylindrical To flow through the wall of the filter medium 5b.
Dem Filterelement 5 ist ein Vorfilter 6 in Form eines Zyklonfilters mit Koaleszenswirkung vorgeordnet. Das Zyklonfilter besteht aus einem unten offenen zylindrischen Filtermittel 6a und einem am oberen Ende angeordneten Drallerzeuger βb in Form von Leitschaufeln. Die Anordnung ist dabei so getroffen, daß das über den Einlaß 2 einströmende gasförmige Medium gezwungen ist, den Drallerzeuger 6b zu passieren. Dabei wird die im wesentlichen lineare Strömung in eine rotierende Strömung umgesetzt, so daß beim weiteren Weg des gasförmigen Mediums durch das hohlzylindrische Filtermittel 6a sich Flüssigkeitspartikel und Feststoffpartikel am Filtermittel βa, insbesondere unter Ausnutzung der Koaleszens, abscheiden. Das bedeutet, daß nur noch die im gasförmigen Medium verbliebenen restlichen Verunreinigungen vom Hauptfilter 5 ausgefiltert werden müssen. Entsprechend länger ist deshalb die Standzeit des Hauptfilters 5. Das auswechselbare Vorfilter 6 sollte aus einem preiswerten und/oder leicht zu reinigenden Filtermaterial bestehen, damit die Betriebskosten des Filters auch bei einem häufigen Wechsel des Vorfilters 6 niedrig bleiben. The filter element 5 is preceded by a pre-filter 6 in the form of a cyclone filter with a coalescing effect. The cyclone filter consists of a cylindrical filter means 6a open at the bottom and a swirl generator βb arranged at the upper end in the form of guide vanes. The arrangement is such that the gaseous medium flowing in via the inlet 2 is forced to pass the swirl generator 6b. The essentially linear flow turns into a rotating flow implemented so that when the gaseous medium travels further through the hollow cylindrical filter means 6a, liquid particles and solid particles are deposited on the filter means βa, in particular using the coalescence. This means that only the remaining impurities in the gaseous medium have to be filtered out by the main filter 5. The service life of the main filter 5 is therefore correspondingly longer. The exchangeable prefilter 6 should consist of an inexpensive and / or easy-to-clean filter material, so that the operating costs of the filter remain low even when the prefilter 6 is changed frequently.

Claims

A N S P R Ü C H E EXPECTATIONS
1. Filter für mit Feuchtigkeit und/oder Öl und/oder Feststoffpartikeln verunreinigte, gasförmige Medien mit einem einen Einlaß (2) und einen Auslaß (3) für das gasförmige Medium aufweisenden Gehäuse (1,4) und einem darin untergebrachten topfförmigen Filterelement (5) , dessen Filtermittel (5b) zwischen dem Einlaß (2) und dem Auslaß (3) angeordnet ist, d a d u r c h g e k e n n z e i c h n e t , daß in Durchströmrichtung vor dem Filtermittel (5b) ein als Zyklonfilter ausgebildetes Vorfilter (6) austauschbar angeordnet ist.1. Filter for gaseous media contaminated with moisture and / or oil and / or solid particles with an inlet (2) and an outlet (3) for the gaseous medium housing (1, 4) and a cup-shaped filter element (5 ), the filter means (5b) of which is arranged between the inlet (2) and the outlet (3), characterized in that a prefilter (6) designed as a cyclone filter is interchangeably arranged upstream of the filter means (5b).
2. Filter nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , daß das2. Filter according to claim 1, d a d u r c h g e k e n n z e i c h n e t that the
Filtermittel (5b) die Form eines Hohlzylinders hat, in dessen oberen Ende das Vorfilter (6) sitzt, das als unten offener Hohlzylinder mit einem an seinem oberen offenen Ende angeordneten Drallerzeuger (6b) ausgebildet ist.Filter means (5b) has the shape of a hollow cylinder, in the upper end of which the prefilter (6) sits, which is designed as a hollow cylinder open at the bottom with a swirl generator (6b) arranged at its upper open end.
3. Filter nach Anspruch 1 oder 2, d a d u r c h g e k e n n z e i c h n e t , daß das3. Filter according to claim 1 or 2, d a d u r c h g e k e n n z e i c h n t that
Vorfilter (6) ein Filtermittel (6a) mit Koaleszenswirkung hat . Prefilter (6) has a filter medium (6a) with a coalescing effect.
EP01931597A 2000-04-19 2001-04-12 Filter for filtering gaseous media contaminated with moisture and/or oil and/or solid particles Withdrawn EP1274498A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10019293A DE10019293A1 (en) 2000-04-19 2000-04-19 Filters for gaseous media contaminated with moisture and / or oil and / or solid particles
DE10019293 2000-04-19
PCT/EP2001/004230 WO2001080975A1 (en) 2000-04-19 2001-04-12 Filter for filtering gaseous media contaminated with moisture and/or oil and/or solid particles

Publications (1)

Publication Number Publication Date
EP1274498A1 true EP1274498A1 (en) 2003-01-15

Family

ID=7639242

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01931597A Withdrawn EP1274498A1 (en) 2000-04-19 2001-04-12 Filter for filtering gaseous media contaminated with moisture and/or oil and/or solid particles

Country Status (4)

Country Link
EP (1) EP1274498A1 (en)
AU (1) AU2001258333A1 (en)
DE (1) DE10019293A1 (en)
WO (1) WO2001080975A1 (en)

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DE10201486A1 (en) * 2002-01-16 2003-11-20 Bauer Kompressoren Device for liquid separation and filtering of compressed gases
GB0217024D0 (en) 2002-07-23 2002-08-28 Domnick Hunter Ltd A coalescing filter element
NL1023356C2 (en) * 2003-05-07 2004-11-09 Grasso Products B V Separation apparatus for removing drops of liquid from e.g. gaseous coolant, comprises liquid separator and coalescence device
GB0417457D0 (en) * 2004-08-05 2004-09-08 Domnick Hunter Ltd Filter element
GB0417459D0 (en) 2004-08-05 2004-09-08 Domnick Hunter Ltd Filter assembly
DE102005062245A1 (en) 2005-12-24 2007-06-28 Hydac Process Technology Gmbh Gas cleaning system for dehumidifying gases comprises a unit for pre-dehumidifying the gas arranged upstream of a filtering unit
EP1930059B1 (en) 2006-11-13 2013-05-15 Sulzer Chemtech AG Droplet separator
AU2009210883B2 (en) * 2008-02-08 2014-01-09 Equinor Energy As Separator unit
CN103394258A (en) * 2013-07-31 2013-11-20 无锡柯马机械有限公司 Air filter
CN109758850B (en) * 2019-03-12 2023-12-22 中国石油大学(北京) Gas-liquid coalescent filter element with preseparation function

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US4516994A (en) * 1984-04-11 1985-05-14 Vilter Manufacturing Corporation Apparatus for separating liquid droplets from gas
US4964898A (en) * 1989-04-03 1990-10-23 Vividstar International Inc. Dryer separater
US5271245A (en) * 1992-08-20 1993-12-21 Ac&R Components, Inc. Two-stage helical oil separator
DE29700579U1 (en) * 1997-01-15 1997-03-13 Mann & Hummel Filter Arrangement for separating liquid particles from a gas stream

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Also Published As

Publication number Publication date
WO2001080975A1 (en) 2001-11-01
AU2001258333A1 (en) 2001-11-07
DE10019293A1 (en) 2001-10-31

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