Global Patent Index - EP 1494788 A1

EP 1494788 A1 20050112 - CROSS FLOW FILTRATION SYSTEM AND METHOD FOR LOCATING DEFECTS

Title (en)

CROSS FLOW FILTRATION SYSTEM AND METHOD FOR LOCATING DEFECTS

Title (de)

QUERSTROM-FILTRATIONSANLAGE UND VERFAHREN ZUR FEHLERORTUNG

Title (fr)

INSTALLATION DE FILTRATION A COURANT TRANSVERSAL ET PROCEDE DE LOCALISATION DE DEFAUTS

Publication

EP 1494788 A1 20050112 (DE)

Application

EP 03746211 A 20030325

Priority

  • CH 0300196 W 20030325
  • CH 6142002 A 20020412

Abstract (en)

[origin: WO03086593A1] The invention relates to a cross flow filtration system comprising at least one filtering element (1) to which a substance mixture from a product tank (2) is supplied via a supply line (3). Rinsing water from a rinsing water tank (14) can also be supplied to the filtering element (1). According to the invention, a supply line check valve (28) is mounted before the entry of the supply line (3) into the filtering element (1), and a compressed-air line (25) leads into the filtering element (1) on the entry side while being able to be blocked by a compressed-air check valve (26). The retentate or rinsing water can be forced out of the filtering element (1) by compressed air by closing the supply line check valve (28) and opening the compressed-air check valve (26). Air enters the secondary circuit of the filtering element (1) when the filtering element (1) has a leak. It is then easy to notice the location on the filtering element (1) air from which air exits whereby enabling the defect to be localized. The invention renders the maintenance and repair of a defective filtering element (1) very simple.

IPC 1-7

B01D 65/02; B01D 61/22; C02F 1/44; A23L 2/08; A23L 2/74

IPC 8 full level

A23L 2/08 (2006.01); A23L 2/74 (2006.01); B01D 61/14 (2006.01); B01D 61/18 (2006.01); B01D 61/20 (2006.01); B01D 61/22 (2006.01); B01D 65/02 (2006.01); B01D 65/10 (2006.01); C12H 1/075 (2006.01)

CPC (source: EP)

A23L 2/087 (2013.01); A23L 2/74 (2013.01); B01D 61/14 (2013.01); B01D 61/18 (2013.01); B01D 61/20 (2013.01); B01D 61/22 (2013.01); B01D 65/02 (2013.01); B01D 65/102 (2013.01); B01D 2321/02 (2013.01); B01D 2321/185 (2013.01)

Citation (search report)

See references of WO 03086593A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 03086593 A1 20031023; AU 2003210114 A1 20031027; CN 1646211 A 20050727; EP 1494788 A1 20050112; PL 370707 A1 20050530

DOCDB simple family (application)

CH 0300196 W 20030325; AU 2003210114 A 20030325; CN 03808266 A 20030325; EP 03746211 A 20030325; PL 37070703 A 20030325