EP2365855A1 - Procédé et dispositif en vue de l'exécution d'un test d'intégrité - Google Patents

Procédé et dispositif en vue de l'exécution d'un test d'intégrité

Info

Publication number
EP2365855A1
EP2365855A1 EP09752102A EP09752102A EP2365855A1 EP 2365855 A1 EP2365855 A1 EP 2365855A1 EP 09752102 A EP09752102 A EP 09752102A EP 09752102 A EP09752102 A EP 09752102A EP 2365855 A1 EP2365855 A1 EP 2365855A1
Authority
EP
European Patent Office
Prior art keywords
sound
filter
measured
vibration
filter element
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Withdrawn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
EP09752102A
Other languages
German (de)
English (en)
Inventor
Maik Jornitz
Jens Meyer
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.)
Sartorius Stedim Biotech GmbH
Original Assignee
Sartorius Stedim Biotech 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 Sartorius Stedim Biotech GmbH filed Critical Sartorius Stedim Biotech GmbH
Publication of EP2365855A1 publication Critical patent/EP2365855A1/fr
Withdrawn legal-status Critical Current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
    • B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
    • B01D46/0086—Filter condition indicators
    • 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
    • B01D46/2407—Filter candles
    • 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
    • B01D46/42—Auxiliary equipment or operation thereof
    • B01D46/44—Auxiliary equipment or operation thereof controlling filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2273/00—Operation of filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2273/18—Testing of filters, filter elements, sealings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2273/00—Operation of filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2273/24—Making use of acoustic waves, e.g. for measurements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
    • G01N2015/084—Testing filters

Definitions

  • the invention relates to a method for carrying out integrity tests of at least one arranged within a filter housing filter element with porous Filtermate ⁇ alien, are provided in the means of sound measurement of sound generated by a test fluid when flowing through the filter element.
  • the invention further relates to a device for carrying out integrity tests of at least one filter element with porous filter materials arranged inside a filter housing, in which means are provided for measuring the sound generated by a test fluid when the filter element flows through it.
  • WO 94/11721 A1 discloses an apparatus and a method for carrying out integrity tests of filter elements with porous filter material arranged within a filter housing.
  • a wetted with a wetting solution filter element divides a Gehaucieenraum in an inlet side or a Unfiltratraum and an outlet or Filtratraum. Both sides can be filled with a test fluid creating a pressure differential between the emissive and exhaust sides so that the test fluid flows through the filter element hm, thereby generating sound from a sensor or microphone near the wetted filter element or in the lumen of an inlet tube or an outlet pipe is arranged, received and supplied as an electrical signal to a signal processing unit.
  • the signal processing unit analyzes the signal and determines whether the filter element is integer or not.
  • the disadvantage here is that a test is carried out here, which requires a wetted filter.
  • the pressure difference used or the pressure for the flow through the filter element must be less than the pressure at which the wetting agent is expelled from the largest pore of a homogeneous porous structure of the filter material.
  • EP 0 248 218 B1 likewise discloses a method and a device for carrying out integrity tests, in which a filter element, for example a hollow fiber membrane, is arranged in a housing interior. Again, a so-called bubble point test is performed. For this purpose, the filter material must be wetted with a wetting liquid here.
  • the sound intensity is measured in a liquid-filled housing interior with a microphone, wherein the gas space pressure is determined at which a sudden increase in the sound intensity can be determined.
  • WO 99/16538 Al a device and a method for the localization of defective filter elements within a plurality of filter elements, which are arranged in a housing known. Again, all arranged in a housing filter elements of a Wets liquid and are exposed to a gas pressure, the presence of defective filter elements during a diffusion test is acoustically detected by microphones.
  • JP 2006-218372 A discloses a method and a device for carrying out integrity tests of membrane filters arranged inside a filter housing.
  • the membrane filters divide a membrane module or filter housing into a non-filtrate space and into a filtrate space.
  • a gas flow between both chambers may be detected by means for measuring sound generated in the membrane module.
  • the object of the present invention is therefore to specify a method and a device which do not have the abovementioned disadvantages and in which, in particular, it is possible to carry out the method in the case of unwetted filter elements.
  • This object is achieved with respect to the method in connection with the preamble of claim 1 in that it is characterized by the following steps: a) loading a first side of the filter material of the filter element with a test fluid while maintaining a constant fluid pressure, b) measuring the the test fluids flowing through the filter fluid and / or the vibration with sensors and c) comparing the sound measured in step b) and / or the vibration with the sound measured under identical conditions and / or the vibration of an integral same filter element.
  • a test fluid can be used as the test fluid.
  • a test fluid is to use a test gas as the test fluid. For this it is not necessary, as in the known tests, to wet the filter elements before.
  • the sound is measured directly in the test fluid.
  • the sound can be measured with a sound sensor arranged inside the filter housing and / or in an inflow or outflow, for example a microphone which is designed as a piezo pickup.
  • the sound is measured indirectly as a body sound.
  • the body sound can be measured by means of sensors arranged on a filter housing wall and / or on inflow or outflow lines.
  • the body sound is measured without contact by laser vibration measurement.
  • vibration patterns arising at the filter elements and / or at the filter housing and / or at the inflows and / or outflows are measured.
  • the vibration patterns can be measured with vibration sensors, which are arranged directly on the filter elements, the filter housing or the inflow or outflow.
  • the vibration patterns can also be measured contactlessly with optical vibration sensors.
  • the object relating to the device is achieved in conjunction with the preamble of claim 14, characterized in that the sound and / or vibrations generated by the sound can be measured by contactless sensors as means for sound measurement.
  • contactless sensors as a means of sound measurement can also within the housing or the Filter element or the supply and discharge lines are omitted.
  • the contactless sensors are reusable while the filter housing interchangeable with filter element or at least the filter element, for example, as a disposable filter element are inexpensive exchangeable.
  • the sensors are designed as optical vibration sensors in conjunction with a laser vibration measurement.
  • Figure 1 a schematic side view of a
  • Figure 2 a schematic side view of a
  • An apparatus 1 for carrying out integrity tests consists essentially of a housing 2, a filter element 3, an inlet 4, a drain 5, sensors 6 and a signal processing unit 7.
  • the filter element 3 is arranged in a housing interior 8 of the housing 2.
  • the filter element 3 with porous filter material divides the interior of the housing 8 into a non-filtrate space 9 and a filtrate space 10 arranged centrally in the filter element 3.
  • the filtrate space 9 is connected to the inlet 4 and the filtrate space 10 is connected to the outlet 5.
  • the sensors 6 are connected via signal lines 13 to the signal processing unit 7 in connection.
  • the signal lines 13 can also be designed as wireless connections.
  • FIG. 1 Although a plurality of sensors 6 are shown in FIG. 1, a single sensor 6 is sufficient for carrying out an integrity test with a single filter element 3.
  • a further sensor 18 is shown, which can be arranged outside at the outflow 12 or within the outflow 5. It is also possible to arrange a sensor 19 in the filter element 3 or in the filtrate space 10.
  • a contactless sensor 20 is shown by way of example in FIG. 1, which optically scans the housing wall 17 of the housing 2 and forwards the measured vibrations of the housing wall 17 via the signal line 13 to the signal processing unit 7.
  • the exemplary embodiment of Figure 2 shows a device 1 'with a housing 2', in the housing interior 8 'three filter elements 3' are arranged. If only one sensor 6 is used, it can at least be determined when carrying out an integrity test whether the group of three filter elements 3 'has an integer. As far as the integrity of a single filter element 3 'is to be determined, each filter element 3', a sensor 6 is assigned.
  • a test fluid is supplied to the non-filtrate space 9 via the inflow space 9 while maintaining a constant fluid pressure, so that a fluid pressure is applied to a first side of the filter material 3, 3 'facing the unfiltrate 9.
  • the test fluid flows through the filter element 3, 3 'or its filter materials and causes sound or vibrations.
  • the sound and / or the vibration caused is measured with the sensors 6 and compared in a subsequent step with the measured sound and / or vibration with the sound measured under identical conditions and / or the vibration of an integral same filter element. That the sound or the vibration is detected by the sensors 6 and forwarded via the signal line 13 to the signal processing unit 7 in which sound or vibration values measured under identical conditions are stored, so that a comparison can take place in the signal processing unit 7.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

L'invention concerne un procédé et un dispositif permettant l'exécution d'un test d'intégrité d'au moins un élément de filtration disposé à l'intérieur d'un boîtier de filtre et doté de matériaux poreux de filtration, dans lequel des moyens de mesure du bruit provoqué par un fluide de test lorsqu'il traverse l'élément de filtration sont prévus. Le procédé comprend les étapes qui consistent à a) appliquer un fluide de test sur un premier côté des matériaux de filtration de l'élément de filtre en maintenant une pression constante du fluide, b) à mesurer le bruit provoqué par le fluide de test qui traverse les matériaux de filtration et/ou la vibration à l'aide de détecteurs et c) à comparer le bruit mesuré à l'étape b) et/ou la vibration avec le bruit mesuré dans des conditions identiques et/ou avec la vibration d'un élément de filtration identique neuf.
EP09752102A 2008-11-14 2009-10-21 Procédé et dispositif en vue de l'exécution d'un test d'intégrité Withdrawn EP2365855A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008057458A DE102008057458B4 (de) 2008-11-14 2008-11-14 Verfahren und Vorrichtung zur Durchführung von Integritätstests
PCT/EP2009/007529 WO2010054740A1 (fr) 2008-11-14 2009-10-21 Procédé et dispositif en vue de l'exécution d'un test d'intégrité

Publications (1)

Publication Number Publication Date
EP2365855A1 true EP2365855A1 (fr) 2011-09-21

Family

ID=41572551

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09752102A Withdrawn EP2365855A1 (fr) 2008-11-14 2009-10-21 Procédé et dispositif en vue de l'exécution d'un test d'intégrité

Country Status (4)

Country Link
US (1) US9072996B2 (fr)
EP (1) EP2365855A1 (fr)
DE (1) DE102008057458B4 (fr)
WO (1) WO2010054740A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2826536A1 (fr) * 2013-07-17 2015-01-21 Siemens VAI Metals Technologies GmbH Détection d'un processus de nettoyage d'une installation comprenant au moins un filtre
US10057699B2 (en) 2014-10-01 2018-08-21 Sartorius Stedim Biotech Gmbh Audio identification device, audio identification method and audio identification system
BR112017011365B1 (pt) * 2014-12-30 2021-12-28 Emd Millipore Corporation Cápsula de filtro que suporta o teste de integridade direto de um elemento de filtro interno, sistema para teste de integridade e método para realizar um teste de integridade
AU2017209214B2 (en) 2016-01-22 2019-07-18 Baxter Healthcare Sa Method and machine for producing sterile solution product bags
MX2018008877A (es) 2016-01-22 2018-09-21 Baxter Int Bolsa de producto de solucion esteril.
DE102019111114A1 (de) * 2019-04-30 2020-11-05 Hengst Se Verfahren und Vorrichtung zum Ermitteln der Beschaffenheit eines Filtereinsatzes in einem Filter und zugehöriges Computerprogrammprodukt
EP3865199B1 (fr) * 2020-02-12 2023-09-13 Carl Freudenberg KG Module de filtre pourvu de capteur pour déterminer l'état de charge et procédé de détermination de l'état de charge

Citations (2)

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US5161408A (en) * 1991-08-26 1992-11-10 Mcrae Thomas G Photo-acoustic leak detection system and method
US6666070B1 (en) * 2002-06-26 2003-12-23 Corning Incorporated Method for testing the integrity of DPFs

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US4701861A (en) * 1985-05-31 1987-10-20 Pall Corporation Filter test device
DE3617724A1 (de) 1986-05-27 1987-12-03 Akzo Gmbh Verfahren zur bestimmung des blaspunktes bzw. der groessten pore von membranen oder filterwerkstoffen
JP3132092B2 (ja) * 1990-11-16 2001-02-05 株式会社デンソー ダストフイルタの目詰り検知装置
DE4119040C2 (de) * 1991-06-10 1997-01-02 Pall Corp Verfahren und Gerät zum Testen des Betriebszustands von Filterelementen
EP0667954A4 (fr) 1992-11-06 1995-12-27 Pall Corp Systeme et procede de verification de l'integrite d'elements poreux.
US5576480A (en) * 1992-11-06 1996-11-19 Pall Corporation System and method for testing the integrity of porous elements
EP0640822B1 (fr) 1993-08-30 1998-04-22 Millipore Investment Holdings Limited Essai d'intégrité de structures poreuses utilisant l'émission acoustique
WO1999016538A1 (fr) 1997-09-30 1999-04-08 Pall Corporation Dispositifs et procedes servant a localiser des filtres defectueux dans une pluralite de filtres
FR2775440B1 (fr) * 1998-03-02 2000-11-10 Suez Lyonnaise Des Eaux Procede de controle de l'integrite des modules de filtration a fibres creuses
ES2202081T3 (es) * 1999-02-26 2004-04-01 United States Filter Corporation Metodo y aparato para evaluar una membrana.
FR2828116B1 (fr) * 2001-08-06 2003-11-14 Ondeo Degremont Procede et dispositif de controle de l'integrite des modules de filtration membranaire
DE10151271B4 (de) * 2001-10-17 2010-01-07 Sartorius Stedim Biotech Gmbh Verfahren zur Durchführung von Integritätstests von Filterlementen
DE10151269B4 (de) * 2001-10-17 2005-08-25 Sartorius Ag Verfahren zum Überwachen der Integrität von Filtrationsanlagen
WO2005003695A1 (fr) * 2003-06-24 2005-01-13 Cidra Corporation Caracterisation de pressions instables dans des tuyaux a l'aide de dispositifs de mesure optique
JP2006218372A (ja) 2005-02-09 2006-08-24 Japan Organo Co Ltd 膜分離装置
US7343827B2 (en) * 2005-11-08 2008-03-18 M-I L.L.C. System and process for break detection in porous elements for screening or filtering

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
US5161408A (en) * 1991-08-26 1992-11-10 Mcrae Thomas G Photo-acoustic leak detection system and method
US6666070B1 (en) * 2002-06-26 2003-12-23 Corning Incorporated Method for testing the integrity of DPFs

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2010054740A1 *

Also Published As

Publication number Publication date
US20110214485A1 (en) 2011-09-08
WO2010054740A1 (fr) 2010-05-20
DE102008057458A1 (de) 2010-05-20
US9072996B2 (en) 2015-07-07
DE102008057458B4 (de) 2012-04-26

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