DE3716049A1 - Device for monitoring air filters having filter mats - Google Patents

Device for monitoring air filters having filter mats

Info

Publication number
DE3716049A1
DE3716049A1 DE19873716049 DE3716049A DE3716049A1 DE 3716049 A1 DE3716049 A1 DE 3716049A1 DE 19873716049 DE19873716049 DE 19873716049 DE 3716049 A DE3716049 A DE 3716049A DE 3716049 A1 DE3716049 A1 DE 3716049A1
Authority
DE
Germany
Prior art keywords
filter
filter mat
light source
air filters
monitoring air
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Withdrawn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
DE19873716049
Other languages
German (de)
Inventor
Max Nickelsen
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.)
Hagenuk Vorm Neufeldt and Kuhnke GmbH
Hagenuk Telecom GmbH
Original Assignee
Hagenuk Vorm Neufeldt and Kuhnke GmbH
Hagenuk Telecom 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 Hagenuk Vorm Neufeldt and Kuhnke GmbH, Hagenuk Telecom GmbH filed Critical Hagenuk Vorm Neufeldt and Kuhnke GmbH
Priority to DE19873716049 priority Critical patent/DE3716049A1/en
Publication of DE3716049A1 publication Critical patent/DE3716049A1/en
Withdrawn legal-status Critical Current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
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • 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
    • B01D2273/26—Making use of optical waves, e.g. for measurements

Abstract

It is provided to carry out air filter monitoring using the dimming principle. In this case, a light source and a photoelement are arranged on opposite sides of the filter mat. The light intensity received by the photoelement is used in this case by an evaluation unit as a measure of the pollution (fouling) of the filter mat.

Description

Die Erfindung bezieht sich auf eine Vorrichtung zur Überwachung von Luftfiltern mit Filtermatten für eine Staubspeicherung zur Feststellung des Verschmutzungs­ grades.The invention relates to a device for Monitoring air filters with filter mats for one Dust storage to determine the pollution degrees.

Es hat sich in der Praxis gezeigt, daß es relativ aufwendig ist, in Klimaanlagen Filtermatten von Luft­ filtern zu kontrollieren, um gegebenenfalls einen Austausch vorzunehmen. Dieses Problem tritt insbesondere bei gekapselten Anlagen, wie sie in Fahrzeugen verwendet werden, auf. Die Schwierigkeit der Überwachung besteht auch darin, daß durch anlagebedingte Druckschwankungen Maßnahmen für durchlaßabhängige pneumatische Über­ wachungseinrichtungen versagen bzw. relativ aufwendig sind.It has been shown in practice that it is relative is expensive in air conditioning filter mats of air filter to check if necessary Exchange. This problem occurs in particular in enclosed systems, such as those used in vehicles be on. Monitoring is difficult  also in that due to system-related pressure fluctuations Measures for passage-dependent pneumatic over security devices fail or are relatively complex are.

Aufgabe der Erfindung ist es, eine einfache gattungs­ gemäße Überwachungseinrichtung zu schaffen, die einen Einsatz in Fahrzeugen als rüttelsicheres System gewähr­ leistet.The object of the invention is a simple genus to create appropriate monitoring facility that Use in vehicles as a vibration-proof system accomplishes.

Die Lösung dieser Aufgabe erfolgt erfindungsgemäß dadurch, daß an gegenüberliegenden Seiten der Filter­ matte eine Lichtquelle und ein Fotoelement, wie eine Solarzelle, angeordnet sind, wobei über eine Ausweite­ einheit die aufgenommene Lichtstärke des Fotoelementes als Maß der Verschmutzung ermittelbar ist.This object is achieved according to the invention in that on opposite sides of the filter matte a light source and a photo element, like one Solar cell, are arranged, with an expansion unit the recorded light intensity of the photo element can be determined as a measure of pollution.

Hierdurch wird die veränderte Lichtdurchlässigkeit der Filtermatte infolge der Staubspeicherung als Kriterium für den Verschmutzungsgrad herangezogen. Selbstver­ ständlich ist es auch möglich, eine Überprüfung nicht nur kontinuierlich, sondern auch wahlweise vorzunehmen.This changes the translucency of the Filter mat as a criterion due to dust storage used for the degree of pollution. Self Ver Of course, it is also possible not to check only continuously, but also optionally.

Eine zweckmäßige Ausbildung wird darin gesehen, außer der kontinuierlichen Meßanzeige eine Anordnung zu ermöglichen, daß die Auswerteeinheit bei Überschreitung des eingestellten Verschmutzungsgrades ein Meldeelement steuert.Appropriate training is seen in this, except an arrangement for the continuous measurement display enable the evaluation unit when exceeded of the set degree of soiling a signaling element controls.

Ferner wird vorgeschlagen, daß die Lichtquelle in Durchströmungsrichtung vor der Filtermatte angeordnet ist und eine Abdeckung aufweist, die eine der Filter­ matte zugeordnete staubgeschützte Öffnung aufweist. It is also proposed that the light source in Flow direction arranged in front of the filter mat and has a cover that one of the filters mat assigned dust-protected opening.  

In der Zeichnung ist eine schematische Schaltungsanord­ nung einer erfindungsgemäßen Vorrichtung dargestellt.In the drawing is a schematic circuit arrangement shown a device according to the invention.

Bei der dargestellten Anordnung ist eine Filtermatte 6 als Staubspeicher angeordnet. Hierbei wurden die zugeordneten weiteren Teile nicht näher dargestellt. An gegenüberliegenden Seiten der Filtermatte 6 sind eine Lichtquelle 1 und ein Fotoelement 2, wie eine Solar­ zelle, angeordnet. Die Lichtquelle 1 ist dabei in Durchströmrichtung vor der Filtermatte 6 angeordnet und besitzt eine Abdeckung 8, die eine der Filtermatte 6 zugeordnete staubgeschützte Öffnung aufweist.In the arrangement shown, a filter mat 6 is arranged as a dust store. The associated other parts were not shown in detail here. On opposite sides of the filter mat 6 , a light source 1 and a photo element 2 , such as a solar cell, are arranged. The light source 1 is arranged in the flow direction in front of the filter mat 6 and has a cover 8 which has a dust-protected opening assigned to the filter mat 6 .

Das Fotoelement 2 ist mit einer Auswerteeinheit 7, bestehend aus Vorverstärker 3, Schaltverstärker 4 und Ausgangsrelais 5, verbunden, das die aufgenommene Lichtstärke als Maß der Verschmutzung ermittelt und ein Meldeelement steuert. Hierdurch ist es möglich, eine Luftfilterüberwachung nach dem Dämmerungsprinzip durchzuführen.The photo element 2 is connected to an evaluation unit 7 , consisting of preamplifier 3 , switching amplifier 4 and output relay 5 , which determines the light intensity recorded as a measure of the contamination and controls a signaling element. This makes it possible to carry out air filter monitoring based on the twilight principle.

Claims (3)

1. Vorrichtung zur Überwachung von Luftfiltern mit Filtermatten für eine Staubspeicherung zur Fest­ stellung des Verschmutzungsgrades dadurch gekenn­ zeichnet, daß an gegenüberliegenden Seiten der Filtermatte (6) eine Lichtquelle (1) und ein Foto­ element (2), wie eine Solarzelle, angeordnet sind, wobei über eine Auswerteeinheit (7) die aufgenommene Lichtstärke des Fotoelementes (2) als Maß der Verschmutzung ermittelbar ist.1. Device for monitoring air filters with filter mats for dust storage to determine the degree of contamination characterized in that a light source ( 1 ) and a photo element ( 2 ), such as a solar cell, are arranged on opposite sides of the filter mat ( 6 ), the recorded light intensity of the photo element ( 2 ) can be determined as a measure of the soiling by means of an evaluation unit ( 7 ). 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Auswerteeinheit (7) bei Überschreitung des eingestellten Verschmutzungsgrades ein Meldeelement steuert. 2. Device according to claim 1, characterized in that the evaluation unit ( 7 ) controls a signaling element when the set degree of contamination is exceeded. 3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekenn­ zeichnet, daß die Lichtquelle (1) in Durchströmungs­ richtung vor der Filtermatte (6) angeordnet ist und eine Abdeckung (8) aufweist, die eine der Filter­ matte (6) zugeordnete staubgeschützte Öffnung aufweist.3. Apparatus according to claim 1 or 2, characterized in that the light source ( 1 ) is arranged in the flow direction in front of the filter mat ( 6 ) and has a cover ( 8 ) having one of the filter mat ( 6 ) associated dust-protected opening .
DE19873716049 1987-05-14 1987-05-14 Device for monitoring air filters having filter mats Withdrawn DE3716049A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19873716049 DE3716049A1 (en) 1987-05-14 1987-05-14 Device for monitoring air filters having filter mats

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19873716049 DE3716049A1 (en) 1987-05-14 1987-05-14 Device for monitoring air filters having filter mats

Publications (1)

Publication Number Publication Date
DE3716049A1 true DE3716049A1 (en) 1988-11-24

Family

ID=6327485

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19873716049 Withdrawn DE3716049A1 (en) 1987-05-14 1987-05-14 Device for monitoring air filters having filter mats

Country Status (1)

Country Link
DE (1) DE3716049A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2657965A1 (en) * 1990-02-08 1991-08-09 Delahaye Jean RAINFALL WITH CLOGGING DETECTION DEVICE.
DE4014442A1 (en) * 1990-05-05 1991-11-07 Duepro Ag DEVICE FOR DISPLAYING THE DEGREE OF POLLUTION OF AIR FILTERS IN SUCTION CLEANING DEVICES, ROOM FILTERS OR THE LIKE.
DE4105905A1 (en) * 1991-02-26 1992-08-27 Kesslertech Gmbh Air conditioning unit for offices and living rooms - consists of air flow producing unit with filtered air inlet into room through which air is forced under pressure
EP0861984A2 (en) * 1997-02-28 1998-09-02 MAICO ELEKTROAPPARATE-FABRIK GmbH Fan with indication of filter clogging
DE10245911A1 (en) * 2002-10-01 2004-04-15 Mann + Hummel Gmbh Filter sensor arrangement, especially for a motor vehicle air filter, has an optical transmitter and receiver with which the transmission or reflection behavior of the filter can be evaluated to indicate its degree of loading
EP1415831A1 (en) * 2002-11-02 2004-05-06 Kia Motors Corporation Filter structure of a vehicular air conditioner
EP1423678A2 (en) * 2001-08-06 2004-06-02 David Wilson Clogged filter detector
EP4079394A1 (en) * 2021-04-19 2022-10-26 B/E Aerospace, Inc. Clogged air filter detection for galley inserts

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3644004A1 (en) * 1986-06-23 1988-06-30 Lambda Physik Gmbh CIRCUIT FOR PRE-IONATION AND MAIN DISCHARGE OF A PULSED GAS LASER

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3644004A1 (en) * 1986-06-23 1988-06-30 Lambda Physik Gmbh CIRCUIT FOR PRE-IONATION AND MAIN DISCHARGE OF A PULSED GAS LASER

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2657965A1 (en) * 1990-02-08 1991-08-09 Delahaye Jean RAINFALL WITH CLOGGING DETECTION DEVICE.
EP0448416A1 (en) * 1990-02-08 1991-09-25 France Telecom Rain gauge with a device for blockage detection
US5138301A (en) * 1990-02-08 1992-08-11 France Telecom Rain gauge with clogging detection device
DE4014442A1 (en) * 1990-05-05 1991-11-07 Duepro Ag DEVICE FOR DISPLAYING THE DEGREE OF POLLUTION OF AIR FILTERS IN SUCTION CLEANING DEVICES, ROOM FILTERS OR THE LIKE.
DE4105905A1 (en) * 1991-02-26 1992-08-27 Kesslertech Gmbh Air conditioning unit for offices and living rooms - consists of air flow producing unit with filtered air inlet into room through which air is forced under pressure
EP0861984A2 (en) * 1997-02-28 1998-09-02 MAICO ELEKTROAPPARATE-FABRIK GmbH Fan with indication of filter clogging
EP0861984A3 (en) * 1997-02-28 1999-07-07 MAICO ELEKTROAPPARATE-FABRIK GmbH Fan with indication of filter clogging
EP1423678A2 (en) * 2001-08-06 2004-06-02 David Wilson Clogged filter detector
EP1423678A4 (en) * 2001-08-06 2005-05-25 David Wilson Clogged filter detector
DE10245911A1 (en) * 2002-10-01 2004-04-15 Mann + Hummel Gmbh Filter sensor arrangement, especially for a motor vehicle air filter, has an optical transmitter and receiver with which the transmission or reflection behavior of the filter can be evaluated to indicate its degree of loading
EP1415831A1 (en) * 2002-11-02 2004-05-06 Kia Motors Corporation Filter structure of a vehicular air conditioner
EP4079394A1 (en) * 2021-04-19 2022-10-26 B/E Aerospace, Inc. Clogged air filter detection for galley inserts

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8130 Withdrawal