CA2252522C - Dispositif de filtrage comportant des cannelures - Google Patents

Dispositif de filtrage comportant des cannelures Download PDF

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Publication number
CA2252522C
CA2252522C CA002252522A CA2252522A CA2252522C CA 2252522 C CA2252522 C CA 2252522C CA 002252522 A CA002252522 A CA 002252522A CA 2252522 A CA2252522 A CA 2252522A CA 2252522 C CA2252522 C CA 2252522C
Authority
CA
Canada
Prior art keywords
flutes
sheet
corrugated
flute
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.)
Expired - Lifetime
Application number
CA002252522A
Other languages
English (en)
Other versions
CA2252522A1 (fr
Inventor
Wayne M. Wagner
Gary R. Gillingham
Joseph C. Tokar
Daniel T. Risch
Jim C. Rothman
Fred H. Wahlquist
Bernard A. Matthys
Stephen W. Sabelko
Bryan D. Patten
Gregory L. Reichter
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.)
Donaldson Co Inc
Original Assignee
Donaldson Co Inc
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 Donaldson Co Inc filed Critical Donaldson Co Inc
Priority claimed from PCT/US1997/007050 external-priority patent/WO1997040918A1/fr
Publication of CA2252522A1 publication Critical patent/CA2252522A1/fr
Application granted granted Critical
Publication of CA2252522C publication Critical patent/CA2252522C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
    • B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
    • B01D46/525—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material which comprises flutes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/001—Making filtering elements not provided for elsewhere
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/22—Cell-type filters
    • B01D25/24—Cell-type roll filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/22—Cell-type filters
    • B01D25/26—Cell-type stack filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/30—Feeding devices ; Discharge devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/30—Feeding devices ; Discharge devices
    • B01D25/305—Feeding devices ; Discharge devices for discharging filtrate
    • 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
    • B01D46/0001—Making filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/44—Special measures allowing the even or uniform distribution of fluid along the length of a conduit

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

Dispositif de filtrage comportant des cannelures et comprenant un matériau filtrant (100) sur lequel sont situées une pluralité de cannelures, dont les cannelures contiguës (120) possèdent des extrémités alternées, fermées afin de pousser le liquide à travers le matériau filtrant. Un premier mode de réalisation de ce dispositif consiste en des cannelures coniques dont les extrémités ouvertes (122) présentent une section transversale plus importante que celle des cannelures fermées (120), les cannelures ouvertes en amont convergeant vers l'extrémité aval et les cannelures à extrémité fermée en amont divergeant vers l'extrémité aval. Un deuxième mode de réalisation consiste en un dispositif de filtrage asymétrique, dont les cannelures présentent une section transversale amont et aval dissemblable, les ouvertures des cannelures étant plus importantes du côté amont du filtre. Un troisième mode de réalisation consiste en un dispositif de filtrage dont un bord amont est écrasé, de manière à améliorer l'écoulement au niveau de ce bord amont. Un quatrième mode de réalisation consiste en un dispositif de filtrage dont le matériau d'étanchéité situé en amont est en retrait par rapport au bord amont, ce qui permet de limiter les effets produits par des blocages au niveau du bord amont du filtre.
CA002252522A 1996-04-26 1997-04-25 Dispositif de filtrage comportant des cannelures Expired - Lifetime CA2252522C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US63922096A 1996-04-26 1996-04-26
US08/639,220 1996-04-26
PCT/US1997/007050 WO1997040918A1 (fr) 1996-04-26 1997-04-25 Dispositif de filtrage comportant des cannelures

Publications (2)

Publication Number Publication Date
CA2252522A1 CA2252522A1 (fr) 1997-11-06
CA2252522C true CA2252522C (fr) 2006-10-10

Family

ID=37114288

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002252522A Expired - Lifetime CA2252522C (fr) 1996-04-26 1997-04-25 Dispositif de filtrage comportant des cannelures

Country Status (1)

Country Link
CA (1) CA2252522C (fr)

Also Published As

Publication number Publication date
CA2252522A1 (fr) 1997-11-06

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Legal Events

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