CH504884A - Filter body - Google Patents

Filter body

Info

Publication number
CH504884A
CH504884A CH1102169A CH1102169A CH504884A CH 504884 A CH504884 A CH 504884A CH 1102169 A CH1102169 A CH 1102169A CH 1102169 A CH1102169 A CH 1102169A CH 504884 A CH504884 A CH 504884A
Authority
CH
Switzerland
Prior art keywords
filter
jacket
jackets
body according
filter body
Prior art date
Application number
CH1102169A
Other languages
German (de)
Inventor
Canisius Carl
Litzau Walter
Moebius Richard
Original Assignee
Norddeutsche Seekabelwerke Ag
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
Priority claimed from DEN20186U external-priority patent/DE1967247U/en
Application filed by Norddeutsche Seekabelwerke Ag filed Critical Norddeutsche Seekabelwerke Ag
Priority claimed from CH823768A external-priority patent/CH505639A/en
Publication of CH504884A publication Critical patent/CH504884A/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02Air cleaners
    • F02M35/024Air cleaners using filters, e.g. moistened
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/111Making filtering elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/13Supported filter elements
    • B01D29/15Supported filter elements arranged for inward flow filtration
    • B01D29/21Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets
    • B01D29/216Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets with wound sheets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/31Self-supporting filtering elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/52Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/56Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/56Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
    • B01D29/58Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D35/00Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/10Brush filters ; Rotary brush filters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • B01D39/08Filter cloth, i.e. woven, knitted or interlaced material
    • B01D39/083Filter cloth, i.e. woven, knitted or interlaced material of organic material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • B01D39/14Other self-supporting filtering material ; Other filtering material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/24Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/11Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels comprising two or more partially or fully enclosed cavities, e.g. honeycomb-shaped
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/30Extrusion nozzles or dies
    • B29C48/301Extrusion nozzles or dies having reciprocating, oscillating or rotating parts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02Air cleaners
    • F02M35/022Air cleaners acting by gravity, by centrifugal, or by other inertial forces, e.g. with moistened walls
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2201/00Details relating to filtering apparatus
    • B01D2201/04Supports for the filtering elements
    • B01D2201/0407Perforated supports on both sides of the filtering element
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2201/00Details relating to filtering apparatus
    • B01D2201/04Supports for the filtering elements
    • B01D2201/043Filter tubes connected to plates
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065More than one layer present in the filtering material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065More than one layer present in the filtering material
    • B01D2239/0672The layers being joined by welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/069Special geometry of layers
    • B01D2239/0695Wound layers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2265/00Casings, housings or mounting for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2265/06Details of supporting structures for filtering material, e.g. cores
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/05Filamentary, e.g. strands
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/12Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/13Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2028/00Nets or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Water Supply & Treatment (AREA)
  • Textile Engineering (AREA)
  • Filtering Materials (AREA)

Description

  

  
 



  Filterkörper
Die Erfindung betrifft einen Filterkörper zum Filtern von Gasen und Flüssigkeiten, insbesondere einen kreiszylindrischen Filterkörper.



   Zum Filtern von Gasen und Flüssigkeiten,   zum    Beispiel Wasser, Öl und dergleichen, werden auf den verschiedensten Gebieten der Technik längliche, insbesondere kreiszylindrische Filterkörper, sogenannte Filterkerzen, verwendet. Diese bestehen in der einfachsten Ausführungsform aus einem durchlässigen Zylindermantel und einem ganz oder teilweise geschlossenen Boden.



   Bei den bekannten Filtern bestehen die gegebenenfalls mehrschichtigen Filtermäntel aus den verschiedensten Materialien, zum Beispiel mit Durchtrittsbohrungen versehenem Metall, Papier und so weiter, je nach dem   Verwendungszweck    des Filters. Bekannt sind auch bereits Filter aus Kunststoff. Diese werden bisher als Brunnenfilter verwendet und bestehen aus einem zylindrischen Filtermantel aus Kunststoff, der mit längsund querverlaufenden Reihen von Filteröffnungen versehen ist. Der Filtermantel wird hierbei durch Extrudieren hergestellt, wobei während der Extrusion aus einem Spritzkopf die Filteröffnungen im Filtermantel angebracht werden. Es entstehen dadurch in Längsund Querrichtung des Filtermantels verlaufende Rippen, die die Filteröffnungen begrenzen.



   Der Filterkörper nach der Erfindung ist dadurch gekennzeichnet, dass mehrere Filterflächen aus Kunststoff in einem äusseren Kunststoff-Filtermantel angeordnet und wenigstens an ihren Enden miteinander und mit dem äusseren Filtermantel durch Verschweissen verbunden sind. Ein derartige Filterkörper ist einfach im Aufbau und vor allem in der Herstellung und trotzdem für höhere technische Anforderungen verwendbar.



  Dank   der    Verschweissung der   Kunststoff-Filterflächen,    worunter insbesondere ein thermisches Verschweissen zu verstehen ist, können besondere Verbindungsmittel an den Enden der Filterkörper entfallen, wodurch der Kosten- und Materialaufwand besonders gering wird.



   Vorzugsweise sind die Filterflächen als Filtermäntel ausgebildet und bestehen in an sich bekannter Weise aus extrudierten, in Längs- und Umfangsrichtung der Filtermäntel verlaufenden Strängen, die die Filteröffnungen frei lassen. Dabei sind die Filterflächen zweckmässigerweise derart gestaltet, dass in Umfangsrichtung der Filtermäntel verlaufende Kunststoffstränge jeweils den Endabschluss der Filtermäntel bilden und miteinander verschweisst sind. Die extrudierten, aus in Längs- und Umfangsrichtung, also nicht diagonal oder sonstwie verlaufenden Kunststoffsträngen bestehenden Filtermäntel sind sehr einfach als fortlaufender Strang herstellbar.

  Durch Abtrennen von Enden des Stranges können die einzelnen zylindrischen oder sonstwie geformten Filtermäntel gebildet werden, wobei mit Vorteil jeweils in Umfangrichtung verlaufende Kunststoffstränge die Endbegrenzung eines Filtermantels bilden und diese Kunststoffstränge zugleich zur Verbindung der Filtermäntel untereinander beziehungsweise mit Endwandungen aus Kunststoff durch Verschweissen dienen. Dadurch erhalten die fertigen, mehrteiligen und mehrwandigen Filter einen sauberen, einfach herzustellenden Endabschluss.



   Je nach Verwendungszweck können mehrere Filterflächen sowie Filtermaterialien, wie Kunststoffschaum, Aktivkohle, Glaswolle und so weiter angeordnet sein. Diese werden zwischen Filterflächen beziehungsweise Filtermäntel eingeschlossen, wobei die Endflächen der Filter durch Endwandungen, insbesondere aus Kunststoff, verschlossen werden können. Diese Endwandungen sind vorzugsweise mit den Filtermänteln verschweisst.



   Nachfolgend werden verschiedene Ausführungsformen von erfindungsgemässen Filterkörpern anhand der Zeichnungen näher erläutert. Es zeigen:
Fig. 1 einen Teil eines Filterkörpers gemäss der Erfindung in perspektivischer Draufsicht, teilweise geschnitten,  
Fig. 2 einen Querschnitt des Filterkörpers gemäss Fig. 1,
Fig. 3 einen Querschnitt eines Filterkörpers mit mehreren Filtermänteln,
Fig. 4 einen Querschnitt einer anderen   Ausführungs-    form eines Filterkörpers mit mehreren Mänteln,
Fig. 5 einen Schnitt IV-IV des Filterkörpers gemäss Fig. 4,
Fig. 6 einen Längsschnitt durch einen zylindrischen Filterkörper beziehungsweise durch eine Filterkerze mit mehreren Zylindermänteln,
Fig. 7 einen Querschnitt zu Fig. 6,
Fig.

   8 eine Ausführungsform eines erfindungsgemässen Filterkörpers mit Filtermaterial im Längsschnitt
Die dargestellten Filterkörper sind als Filterkerzen ausgebildet, wobei die zylindrischen Filtermäntel durch fortlaufende Extrusion aus einem   entsprechenld    ausgebildeten Spritzkopf hergestellt werden, und zwar derart, dass in Längs- und Umfangsrichtung des Filterkörpers verlaufende Rippen 10 beziehungsweise 11 entstehen. Diese Rippen begrenzen in Längs- und Um   fangrichtung    angeordnete Filteröffnungen 12. Die Filtermäntel sind von dem extrudierten Strang jeweils so abgeteilt, dass zur Endbegrenzung jeweils eine umlaufende Rippe 11 dient. Dadurch erhält der Filtermantel einen sauberen glatten Abschluss.



   Die dargestellten Ausführungsbeispiele der Erfindung betreffen mehrteilige Filterkörper, und zwar bestehen diese Filterkörper aus einem äusseren   zylindri-    schen Filtermantel 13 und darin angeordneten verschiedenartigen Filterteilen, Filterflächen und kleineren Filtermänteln.



   Bei dem Ausführungsbeispiel nach Fig. 1 und 2 sind in dem äusseren Filtermantel 13 kreuzförmig angeordnete Filterflächen 14 und 15 angebracht. Diese Filterflächen 14 und 15 sind miteinander sowie mit dem äusseren Filtermantel 13 durch Verschweissung verbunden, so dass ein stabiler, haltbarer Filterkörper beziehungsweise eine Filterkerze auf einfache Weise erzielt wird.



   Bei dem Filterkörper gemäss Fig. 3 sind in dem äusseren Filtermantel 13 mehrere ebenfalls zylindrische Filtermäntel 16 angeordnet. Diese Filtermäntel 16 bestehen ebenfalls aus in Längs- und Umfangsrichtung verlaufenden Rippen 10 bzw. 11, wobei jeweils eine Rippe 11 den Endabschluss der Filtermäntel 16 bildet.



  Die Filtermäntel 16 sind achsparallel, jedoch nicht koaxial in dem äusseren Filtermantel angeordnet und durch Verschweissung wenigstens der Enden miteinander sowie mit dem äusseren Filtermantel 13 verbunden.



   Fig. 4 und 5 zeigen eine ähnliche Ausbildung eines Filterkörpers wie Fig. 3. Hier sind in einem äusseren Filtermantel 13 ein koaxialer innerer Filtermantel 17 und zwischen dem äusseren Filtermantel 13 sowie dem inneren Filtermantel 17 weitere achsparallele zylindrische Filtermäntel 18 angeordnet. Sämtliche Filtermäntel 13, 17, 18 sind in der bereits beschriebenen Weise ausgebildet und wenigstens an den Enden (Fig. 5) miteinander durch Verschweissung verbunden, so dass ein kompliziert aufgebautes Filtergebilde auf einfache Weise erzielt wird.



   Der Filterkörper gemäss Fig. 6 und 7 besteht aus mehreren, nämlich drei konzentrisch ineinander angeordneten Filtermänteln 13, 19 und 20. Diese sind mit einem radialen Abstand voneinander gehalten, und zwar durch ringförmige Abstandhalter 21 aus Kunststoff.



  Die ringförmigen Abstandhalter 21 sind vorzugsweise an den Enden des Filters angeordnet und durch Verschweissung mit den einzelnen Filtermänteln 13, 19, 20 verbunden. Dadurch werden einerseits die Filtermäntel 13, 19, 20 in ihrer Relativlage zueinander fixiert und gehalten, anderseits ein dichter Abschluss der Ringspalte zwischen den einzelnen Filtermänteln 13, 19 und 20 erzielt. Die zentrische Mittelöffnung 22 kann hier, wie bei den anderen Ausführungsformen, offen sein oder, wenn es der Verwendungszweck erfordert, durch eine Abschlusswandung (nicht dargestellt) aus Kunststoff ganz oder teilweise verschlossen sein, die mit den Filtermänteln verschweisst ist.



   Fig. 8 zeigt eine Ausführungsform der Erfindung, bei der zwischen einem äusseren Filtermantel 13 und einem inneren Filtermantel 23 ein im Querschnitt ringförmiger Zwischenraum gebildet ist, der mit Filtermaterial 24, zum Beispiel Glaswolle, Kunststoffschaum, Aktivkohle oder dergleichen gefüllt ist. Der Zwischenraum ist an den Enden durch eine ringförmige Endwandung 25 jeweils verschlossen. Diese Endwandung 25 besteht vorzugsweise ebenfalls aus Kunststoff und ist mit den Filtermänteln 13 und 23 durch thermische Schweissung derart verbunden, dass ein Entweichen des Filtermaterials 24 nicht erfolgen kann. Bei einem grobmaschigen äusseren Filtermantel 13 kann auf dessen Innenseite noch ein feinmaschiger Filtermantel 26 angeordnet sein, der an den Enden ebenfalls mit dem äusseren Filtermantel 13 durch Verschweissung verbunden ist. 



  
 



  Filter body
The invention relates to a filter body for filtering gases and liquids, in particular a circular cylindrical filter body.



   For filtering gases and liquids, for example water, oil and the like, elongated, in particular circular-cylindrical filter bodies, so-called filter candles, are used in the most varied of fields of technology. In the simplest embodiment, these consist of a permeable cylinder jacket and a completely or partially closed base.



   In the known filters, the optionally multilayered filter jackets are made of a wide variety of materials, for example metal, paper and so on provided with through-holes, depending on the intended use of the filter. Filters made of plastic are also known. These have so far been used as well filters and consist of a cylindrical filter jacket made of plastic, which is provided with longitudinal and transverse rows of filter openings. The filter jacket is produced by extrusion, the filter openings being made in the filter jacket during the extrusion from an extrusion head. This results in ribs running in the longitudinal and transverse direction of the filter jacket, which delimit the filter openings.



   The filter body according to the invention is characterized in that several filter surfaces made of plastic are arranged in an outer plastic filter jacket and are connected to one another and to the outer filter jacket at least at their ends by welding. A filter body of this type is simple in structure and, above all, in production and can nevertheless be used for higher technical requirements.



  Thanks to the welding of the plastic filter surfaces, which is to be understood in particular as thermal welding, special connecting means at the ends of the filter bodies can be dispensed with, which makes the cost and material expenditure particularly low.



   The filter surfaces are preferably designed as filter jackets and consist in a manner known per se of extruded strands which run in the longitudinal and circumferential directions of the filter jackets and leave the filter openings free. The filter surfaces are expediently designed in such a way that plastic strands running in the circumferential direction of the filter jackets each form the end of the filter jackets and are welded to one another. The extruded filter jackets consisting of plastic strands that run in the longitudinal and circumferential direction, ie not diagonally or otherwise, can be produced very easily as a continuous strand.

  The individual cylindrical or otherwise shaped filter jackets can be formed by severing the ends of the strand, with plastic strands running in the circumferential direction advantageously forming the end delimitation of a filter jacket and these plastic strands at the same time serving to connect the filter jackets to one another or to plastic end walls by welding. This gives the finished, multi-part and multi-walled filters a clean, easy-to-manufacture end seal.



   Depending on the intended use, several filter surfaces and filter materials such as plastic foam, activated carbon, glass wool and so on can be arranged. These are enclosed between filter surfaces or filter jackets, with the end surfaces of the filters being able to be closed by end walls, in particular made of plastic. These end walls are preferably welded to the filter jackets.



   Various embodiments of filter bodies according to the invention are explained in more detail below with reference to the drawings. Show it:
1 shows a part of a filter body according to the invention in a perspective top view, partly in section,
FIG. 2 shows a cross section of the filter body according to FIG. 1,
3 shows a cross section of a filter body with a plurality of filter jackets,
4 shows a cross section of another embodiment of a filter body with several jackets,
FIG. 5 shows a section IV-IV of the filter body according to FIG. 4,
6 shows a longitudinal section through a cylindrical filter body or through a filter candle with several cylinder jackets,
7 shows a cross section to FIG. 6,
Fig.

   8 shows an embodiment of a filter body according to the invention with filter material in a longitudinal section
The filter bodies shown are designed as filter candles, the cylindrical filter jackets being produced by continuous extrusion from a correspondingly designed injection head in such a way that ribs 10 and 11 are formed in the longitudinal and circumferential direction of the filter body. These ribs delimit filter openings 12 arranged in the longitudinal and circumferential direction. The filter jackets are each divided off from the extruded strand in such a way that a circumferential rib 11 serves as the end delimitation. This gives the filter jacket a clean, smooth finish.



   The illustrated embodiments of the invention relate to multi-part filter bodies, namely these filter bodies consist of an outer cylindrical filter jacket 13 and various filter parts, filter surfaces and smaller filter jackets arranged therein.



   In the embodiment according to FIGS. 1 and 2, filter surfaces 14 and 15 arranged in a cross shape are attached in the outer filter jacket 13. These filter surfaces 14 and 15 are connected to one another and to the outer filter jacket 13 by welding, so that a stable, durable filter body or a filter candle is achieved in a simple manner.



   In the filter body according to FIG. 3, a plurality of likewise cylindrical filter jackets 16 are arranged in the outer filter jacket 13. These filter jackets 16 also consist of ribs 10 and 11 running in the longitudinal and circumferential directions, with one rib 11 each forming the end of the filter jackets 16.



  The filter jackets 16 are arranged axially parallel, but not coaxially, in the outer filter jacket and are connected to one another and to the outer filter jacket 13 by welding at least the ends.



   4 and 5 show a similar design of a filter body as in FIG. 3. Here, a coaxial inner filter jacket 17 is arranged in an outer filter jacket 13 and further axially parallel cylindrical filter jackets 18 are arranged between the outer filter jacket 13 and the inner filter jacket 17. All of the filter jackets 13, 17, 18 are designed in the manner already described and are connected to one another by welding at least at the ends (FIG. 5), so that a filter structure with a complex structure is achieved in a simple manner.



   The filter body according to FIGS. 6 and 7 consists of several, namely three, concentrically arranged filter jackets 13, 19 and 20. These are held at a radial distance from one another, namely by annular spacers 21 made of plastic.



  The annular spacers 21 are preferably arranged at the ends of the filter and connected to the individual filter jackets 13, 19, 20 by welding. As a result, on the one hand, the filter jackets 13, 19, 20 are fixed and held in their position relative to one another, and on the other hand, a tight seal of the annular gaps between the individual filter jackets 13, 19 and 20 is achieved. The central opening 22 can here, as in the other embodiments, be open or, if the intended use requires it, be completely or partially closed by an end wall (not shown) made of plastic which is welded to the filter jackets.



   8 shows an embodiment of the invention in which an intermediate space with an annular cross-section is formed between an outer filter jacket 13 and an inner filter jacket 23 which is filled with filter material 24, for example glass wool, plastic foam, activated carbon or the like. The intermediate space is closed at the ends by an annular end wall 25. This end wall 25 is preferably also made of plastic and is connected to the filter jackets 13 and 23 by thermal welding in such a way that the filter material 24 cannot escape. In the case of a coarse-meshed outer filter jacket 13, a fine-meshed filter jacket 26 can also be arranged on the inside thereof, which is also connected at the ends to the outer filter jacket 13 by welding.

 

Claims (1)

PATENTANSPRUCH PATENT CLAIM Filterkörper zum Filtern von Gasen oder Flüssig- keiten, insbesondere kreiszylindrischer Filterkörper, dadurch gekennzeichnet, dass mehrere Filterflächen aus Kunststoff in einem äusseren Kunststoff-Filtermantel angeordnet und wenigstens an ihren Enden miteinander und mit dem äusseren Filtermantel durch Verschweissen verbunden sind. Filter body for filtering gases or liquids, in particular circular cylindrical filter bodies, characterized in that several plastic filter surfaces are arranged in an outer plastic filter jacket and are connected to each other and to the outer filter jacket at least at their ends by welding. UNTERANSPRÜCHE 1. Filterkörper nach Patentanspruch, dadurch gekennzeichnet, dass die im äusseren Filtermantel auge ordneten Filterflächen als nebeneinander angeordnete und achsparallel zum äusseren Filtermantel ausgerich- tete, innere zylindrische Filtermäntel ausgebildet sind. SUBCLAIMS 1. Filter body according to claim, characterized in that the filter surfaces arranged in the outer filter jacket are designed as inner cylindrical filter jackets arranged next to one another and axially parallel to the outer filter jacket. 2. Filterkörper nach Unteranspruch 1, dadurch gekennzeichnet, dass ein mittlerer, innerer Filtermantel koaxial zum äusseren Filtermantel ausgerichtet ist, und dass zwischen dem inneren und äusseren Filtermantel mehrere zylindrische, achsparallele Filtermäntel angeordnet sind. 2. Filter body according to dependent claim 1, characterized in that a central, inner filter jacket is aligned coaxially to the outer filter jacket, and that a plurality of cylindrical, axially parallel filter jackets are arranged between the inner and outer filter jacket. 3. Filterkörper nach Patentanspruch, dadurch gekennzeichnet, dass mehrere koaxial zueinander angeordnete, zylindrische Filtermäntel durch ringförmige Abstandhalter aus Kunststoff gegeneinander fixiert und an den Enden durch Verschweissen miteinander verbunden sind. 3. Filter body according to claim, characterized in that a plurality of coaxially arranged, cylindrical filter jackets are fixed to one another by annular spacers made of plastic and are connected to one another at the ends by welding. 4. Filterkörper nach Unteranspruch 3, dadurch gekennzeichnet, dass zwischen koaxial zueinander angeordneten Filtermänteln gebildete ringförmige Zwischenräume mit Filtermaterial gefüllt sind, wobei die Zwischenräume stirnseitig durch ringförmige Endwandungen verschlossen sind, die mit den Filtermänteln verschweisst sind. 4. Filter body according to dependent claim 3, characterized in that between coaxially arranged filter jackets formed annular spaces are filled with filter material, the spaces being closed at the end by annular end walls which are welded to the filter jackets. 5. Filterkörper nach Patentanspruch, dadurch gekennzeichnet, dass in dem äusseren Filtermantel radial gerichtete, ebene Filterflächen kreuzförmig angeordnet sind. 5. Filter body according to claim, characterized in that radially directed, flat filter surfaces are arranged in a cross shape in the outer filter jacket. 6. Filterkörper nach Patentanspruch oder einem der Unteransprüche 1-5, dadurch gekennzeichnet, dass die Filteröffnungen sowohl in Längsrichtung als auch in Umfangsrichtung des äusseren Filtermantels in Reihen angeordnet sind. 6. Filter body according to claim or one of the dependent claims 1-5, characterized in that the filter openings are arranged in rows both in the longitudinal direction and in the circumferential direction of the outer filter jacket. 7. Filterkörper nach Patentanspruch oder einem der Unteransprüche 1-5, dadurch gekennzeichnet, dass die Filterflächen unterschiedliche Maschenweiten aufweisen. 7. Filter body according to claim or one of the dependent claims 1-5, characterized in that the filter surfaces have different mesh sizes.
CH1102169A 1967-06-07 1968-06-01 Filter body CH504884A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DEN20186U DE1967247U (en) 1967-06-07 1967-06-07 FILTER CANDLE.
DEN0031568 1967-11-08
DEN0021298 1968-03-16
CH823768A CH505639A (en) 1967-06-07 1968-06-01 Plastic gas and liquid filters plastic gas liquid filter

Publications (1)

Publication Number Publication Date
CH504884A true CH504884A (en) 1971-03-31

Family

ID=27429135

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1102169A CH504884A (en) 1967-06-07 1968-06-01 Filter body

Country Status (1)

Country Link
CH (1) CH504884A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2219765A4 (en) * 2007-11-20 2011-09-07 Filtration Technology Corp FILTER WITH COMPONENTS OF EXTERIOR AND INTERIOR MEDIA AND FILTRATION METHOD

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2219765A4 (en) * 2007-11-20 2011-09-07 Filtration Technology Corp FILTER WITH COMPONENTS OF EXTERIOR AND INTERIOR MEDIA AND FILTRATION METHOD

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