DE9308937U1 - Thermally sterilizable particulate filter cell for sanitary as well as for air conditioning and ventilation applications - Google Patents

Thermally sterilizable particulate filter cell for sanitary as well as for air conditioning and ventilation applications

Info

Publication number
DE9308937U1
DE9308937U1 DE9308937U DE9308937U DE9308937U1 DE 9308937 U1 DE9308937 U1 DE 9308937U1 DE 9308937 U DE9308937 U DE 9308937U DE 9308937 U DE9308937 U DE 9308937U DE 9308937 U1 DE9308937 U1 DE 9308937U1
Authority
DE
Germany
Prior art keywords
filter
filter cell
cell according
hepa
hepa filter
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
DE9308937U
Other languages
German (de)
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.)
T E T UMWELTTECHNIK GES fur L
Original Assignee
T E T UMWELTTECHNIK GES fur L
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 T E T UMWELTTECHNIK GES fur L filed Critical T E T UMWELTTECHNIK GES fur L
Priority to DE9308937U priority Critical patent/DE9308937U1/en
Publication of DE9308937U1 publication Critical patent/DE9308937U1/en
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
    • B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • B01D46/0028—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions provided with antibacterial or antifungal means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/117—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using wet filtering
    • 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
    • B01D46/52—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
    • B01D46/523—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material with means for maintaining spacing between the pleats or folds
    • 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
    • B01D46/66—Regeneration of the filtering material or filter elements inside the filter
    • B01D46/80—Chemical processes for the removal of the retained particles, e.g. by burning
    • B01D46/84—Chemical processes for the removal of the retained particles, e.g. by burning by heating only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filtering Materials (AREA)

Description

-1/1--1/1-

Bezeichnung:Designation:

Thermisch entkeimbare Schwebstoffilterzelle für sanitäre sowie für klima-und lüftungstechnische Anwendungen.Thermally sterilizable particulate filter cell for sanitary as well as air conditioning and ventilation applications.

Kritik am Stand der Technik:Criticism of the state of the art:

Häufig werden Fälle bekannt, wo Filtersysteme, deren Aufgabe die Staub-und Keimfreiheit der Zuluft für Räume zu besorgen ist, dieser Aufgabe dann nicht mehr entsprechen können, wenn z.B. Pilze mittels ihrer Sporen gefährliche Keime auf die Reinluftseite des Filters wachsen lassen. Teurer Ausbau und Ersatz der Filterzellen sind dann unvermeidlich. Desinfektionstechniken sind aufwendig und ebenso teuer in der Anwendung. Die hygienische Situation ist unbefriedigend, manchmal sogar bedrohlich (Krankenhäuser, Forschungs-Einrichtungen).Cases are often reported where filter systems, whose job it is to ensure that the supply air for rooms is free of dust and germs, can no longer fulfill this task if, for example, fungi use their spores to allow dangerous germs to grow on the clean air side of the filter. Expensive removal and replacement of the filter cells is then unavoidable. Disinfection techniques are complex and expensive to use. The hygienic situation is unsatisfactory, sometimes even threatening (hospitals, research facilities).

Techniken und Verfahren, die sich mit der Situation befassen, sind dokumentiert in folgenden Schriften:Techniques and procedures that address the situation are documented in the following writings:

Schwebstoffilterzellen, wie sie üblicherweise zum Einsatz 5 kommen, sind unter anderen beschrieben in:HEPA filter cells, as they are commonly used 5 , are described in, among others:

- G 93 04 789.3- G 93 04 789.3

- G 89 15 110.0
- DT 25 57 444- G 89 15 110.0
- DT2557444

- De 15 679- De 15 679

- DT 26 17 356- DT2617356

- EP 00 67 115- EP00 67 115

-2/1--2/1-

Aufgäbe der Erfindung ist es, The aim of the invention is

eine solche Filterzelle zu schaffen, die es erlaubt, das kritische Filtergut von Zeit zu Zeit ohne zusätzlichen apparativen Aufwand und ohne chemische Desinfektionsmittel zu entkeimen bzw. pfanzliches oder bakterielles Leben abzutöten, um dessen Forttragen unmöglich zu machen. Eine weitere Aufgabe soll sein, Filterzellen zu schaffen, die es möglich machen, eine Entkeimungstechnik auch dann nachträglich zu installieren, wenn die Raumverhältnisse eine andere, großvolumige Lösung nicht mehr zulassen.to create a filter cell that allows the critical filter material to be disinfected from time to time without additional equipment and without chemical disinfectants, or to kill plant or bacterial life, in order to make it impossible to spread it. A further task should be to create filter cells that make it possible to install disinfection technology at a later date, even if the space available no longer allows another, large-volume solution.

Erreicht wird die LösungThe solution is achieved

durch Anwendung der elekrischen Beheizung der Filterzelle, und dies direkt an bzw.in der Filterzelle.by applying electrical heating to the filter cell, directly on or in the filter cell.

Die Beheizeinrichtung wird vorzugsweise im Stillstand der Filtration auf 'Heizen1 geschaltet und dann langsam auf Temperatur gebracht (ca.15O0C) und für einige Zeit auf Temperatur gehalten. Eine für die Filterzelle oder das Verfahren gefährliche Temperatur wird verhindert.The heating device is preferably switched to 'Heating 1' when the filtration is stopped and then slowly brought up to temperature (approx. 150 0 C) and kept at that temperature for some time. A temperature that is dangerous for the filter cell or the process is prevented.

Die folgenden VorteileThe following advantages

sind mit einer erfindungsgemäßen Filterzelle verbunden: - Das Ziel kann ohne großen Aufwand erreicht werden.are connected to a filter cell according to the invention: - The goal can be achieved without great effort.

Eine Nachrüstung mit erfindungsgemäßen Filterzellen verlangt keine besonderen baulichen Veränderungen.Retrofitting with filter cells according to the invention does not require any special structural changes.

Die Filterzelle enthält die wesentlichen Elemente in Baueinheit.
0 - Einem möglichen Pilzwachstum kann durch periodisches Erhitzen des Filters und seines Inhalts entgegengewirktThe filter cell contains the essential elements in one unit.
0 - Possible fungal growth can be counteracted by periodically heating the filter and its contents

werden.
- Ein zweites Medium, das - wie im Falle der Wäsche - den Schmutz wegtragen müßte, entfällt.become.
- A second medium that would have to carry away the dirt - as in the case of laundry - is no longer required.

-3/1--3/1-

Damit entfallen auch Verfahren und Apparate für die Entsorgung einer Waschflüssigkeit. - Die Entsorgung der Filterzelle ist nicht mit der Gefahr einer Kontamination verbunden, da der Filterinhalt abgetötet ist.This also eliminates the need for processes and equipment for disposing of washing liquid. - Disposing of the filter cell does not pose a risk of contamination, as the filter contents are killed.

In einem AusführungsbeispielIn one embodiment

wird eine der möglichen Ausführungsformen anhand der Figuren 1 und 2 beschrieben.One of the possible embodiments is described with reference to Figures 1 and 2.

In Fig.l ist eine komplette Filterzelle dargestellt, wie sie üblicherweise gebaut werden. Solche Filterzellen können, wenn sie nicht im Filtersystem abreigbar sein müssen, in beliebiger Lage eingebaut und beströmt werden. Die in Fig.l und Fig.2 gezeigte Beströmungsrichtung ist nur beispielsweise von unten nach oben.In Fig.l a complete filter cell is shown, as they are usually built. Such filter cells can be installed and flowed through in any position, if they do not have to be wipeable in the filter system. The flow direction shown in Fig.l and Fig.2 is only an example, from bottom to top.

Im Rahmen(10) - hier ist es ein Stahlblechrahmen - sitzt das Filterpack(20), welches allseitig mit dem Rahmen(lO) durch die Klebe-und Verguß-Schicht(30) verbunden ist. Die Dichtung(40) stellt den dichtenden Sitz der Filterzelle mit dem Montagerahmen des Luftleitsystems her.The filter pack (20) is located in the frame (10) - here it is a sheet steel frame - and is connected to the frame (10) on all sides by the adhesive and casting layer (30). The seal (40) ensures that the filter cell is sealed to the mounting frame of the air duct system.

In Fig.2 wird ein Ausschnitt des Filterpack(20) gezeigt, wie es häufig hergestellt wird. Dabei sind ... Fig. 2 shows a section of the filter pack (20) as it is often manufactured. Here, ...

(1) das Filtermedium (meist ist das ein Mikroglasfaser-Vlies), (1) the filter medium (usually a micro glass fibre fleece),

(2) der Abstandshalter zwischen den Filterflächen,(2) the spacer between the filter surfaces,

(3) ein Abdeckprofil auf dem Abstandshalter zum Schutz des Filtermediums,(3) a cover profile on the spacer to protect the filter medium,

(4) eine Baueinheit von Abstandshalter und Beheizelement,(4) a spacer and heating element assembly,

(5) die elektrischen Anschlußschienen.(5) the electrical connecting rails.

Claims (9)

-4/1- Ansprüche-4/1- Claims 1. Schwebstoffilterzelle für die lufttechnische Anwendung in Verbindung mit möglichen belebten Gefahrstoffen im Filtergut wie Pilzen, Viren, Bakterien, dergestalt ,1. HEPA filter cell for air-conditioning applications in connection with possible living hazardous substances in the filter material such as fungi, viruses, bacteria, such that daß die Filterzelle bzw. das Filtermedium und das Filtergut durch eine in/an der Filterzelle vorhandene elektrisch betreibbare Konvektions-, Strahlungs-, oder elektromagnetische Beheizung so erhitzt werden kann, daß eine am/im Filter angesammelte Belebtmasse zum Absterben gebracht wird.that the filter cell or the filter medium and the filter material can be heated by an electrically operated convection, radiation or electromagnetic heater in/on the filter cell in such a way that an active mass accumulated on/in the filter is killed. 2. Schwebstoffilterzelle nach Anspruch 1 dergestalt,2. HEPA filter cell according to claim 1 such that daß das Beheizungselement mehr oder weniger flächig am Filtermedium selbst anliegt oder mit diesem einen Verbund herstellt.that the heating element lies more or less flat against the filter medium itself or forms a connection with it. 3. Schwebstoffilterzelle nach Anspruch 1 dergestalt ,3. HEPA filter cell according to claim 1 such that daß das Filtermedium und die Beheizeinrichtung eine Einheit bilden oder identisch sind.that the filter medium and the heating device form a unit or are identical. 4. Schwebstoffilterzelle nach Anspruch 1 dergestalt ,4. HEPA filter cell according to claim 1 such that daß bei Anwendung von zwischen den Filtermedienflächen liegenden Abstandshaltern diese, oder Teile derselben, oder Schutz-bzw.Abdeckprofile als Beheizungselemente 0 ausgelegt sind, Beheizungselemente tragen, oder diese in/an ihnen befestigt sind.that when using spacers between the filter media surfaces, these, or parts of them, or protective or cover profiles are designed as heating elements, carry heating elements, or these are attached in/to them. -5/1--5/1- 5. Schwebstoffilterzelle nach Anspruch dergestalt , daß das(die) Heizelement(e) anstelle der in den Schwebstoffilterzellen sonst üblichen Abstandshalter zwischen die Filterflächen gesetzt wird (werden).5. HEPA filter cell according to claim 1, in such a way that the heating element(s) is/are placed between the filter surfaces instead of the spacers otherwise customary in the HEPA filter cells. 6. Schwebstoffilterzelle nach Anspruch dergestalt , daß (ein) stahlende(s) Element(e) mehr oder weniger außerhalb der Filtertaschen angeordnet ist (sind).6. HEPA filter cell according to claim 1, such that (a) radiating element(s) is (are) arranged more or less outside the filter bags. 7. Schwebstoffilterzelle nach Anspruch dergestalt ,7. HEPA filter cell according to claim such that daß die Beheizungseinrichtung demontierbar ist. 15that the heating device can be removed. 15 8. Schwebstoffilterzelle nach Anspruch dergestalt, daß das(die) Heizelement(e) wärmespeichernd ist(sind)8. HEPA filter cell according to claim 1, in such a way that the heating element(s) is/are heat-storing 9. Schwebstoffilterzelle nach den Ansprüchen 1 bis dergestalt , daß eine Temperatur-Meß-und Überwachungseinrichtung integriert ist.9. Suspended matter filter cell according to claims 1 to , such that a temperature measuring and monitoring device is integrated.
DE9308937U 1993-06-16 1993-06-16 Thermally sterilizable particulate filter cell for sanitary as well as for air conditioning and ventilation applications Expired - Lifetime DE9308937U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE9308937U DE9308937U1 (en) 1993-06-16 1993-06-16 Thermally sterilizable particulate filter cell for sanitary as well as for air conditioning and ventilation applications

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE9308937U DE9308937U1 (en) 1993-06-16 1993-06-16 Thermally sterilizable particulate filter cell for sanitary as well as for air conditioning and ventilation applications

Publications (1)

Publication Number Publication Date
DE9308937U1 true DE9308937U1 (en) 1993-12-23

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ID=6894460

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Application Number Title Priority Date Filing Date
DE9308937U Expired - Lifetime DE9308937U1 (en) 1993-06-16 1993-06-16 Thermally sterilizable particulate filter cell for sanitary as well as for air conditioning and ventilation applications

Country Status (1)

Country Link
DE (1) DE9308937U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19730293A1 (en) * 1997-07-15 1999-02-11 Daimler Benz Ag Air purification system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19730293A1 (en) * 1997-07-15 1999-02-11 Daimler Benz Ag Air purification system
DE19730293B4 (en) * 1997-07-15 2004-02-12 Daimlerchrysler Ag Air cleaning system

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