DE1964739A1 - Air filter - Google Patents

Air filter

Info

Publication number
DE1964739A1
DE1964739A1 DE19691964739 DE1964739A DE1964739A1 DE 1964739 A1 DE1964739 A1 DE 1964739A1 DE 19691964739 DE19691964739 DE 19691964739 DE 1964739 A DE1964739 A DE 1964739A DE 1964739 A1 DE1964739 A1 DE 1964739A1
Authority
DE
Germany
Prior art keywords
filter
molecular sieve
air filter
layer
breathing apparatus
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.)
Pending
Application number
DE19691964739
Other languages
German (de)
Inventor
Auf Nichtnennung Antrag
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.)
Auergesellschaft GmbH
Original Assignee
Auergesellschaft 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 Auergesellschaft GmbH filed Critical Auergesellschaft GmbH
Priority to DE19691964739 priority Critical patent/DE1964739A1/en
Publication of DE1964739A1 publication Critical patent/DE1964739A1/en
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B21/00—Devices for producing oxygen from chemical substances for respiratory apparatus

Landscapes

  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

Filter for protective breathing apparatus comprises a molecular sieve, using zeolites, having a pore size of 3 x 10-8 - 20 x 10-8, pref. 4 x 10-8 - 13.10-8 cm. The sieve may be used on its own, or together with a carbon layer and/or a filter for suspended particles. The filter is not damaged by absorbed substances.

Description

" F i l t e r Die Erfindung bezieht sich auf ein Filter für Atemschutzgeräte, Raumfilter od.dgl. "F i l t e r The invention relates to a filter for breathing apparatus, Spatial filter or the like.

Bekannte Filter für Atemschutzgeräte, Raumfilter od.dgl. bestehen aus einer Kohlefüllung sowie gegebenenfalls Schwebstoff- Filter. Diese Bestandteile können unter bestimmten Umstanden unwirksam werden, ja sich sogar gefährlich auswirken: Hohe Konzentrationen eines Schadstoffes, der von der Kohle zurückgehalten wird, können eine derart hohe deaktionswarme erzeugen, daß die Kohle verglimmt. Der gleiche Effekt kann eintreten, wenn stark oxidierend wirkende Stoffe oder Stoffe, die bei der Filterung eine Abscheidung von pyrophoren Metallen ergeben, von der Kohle oder dem Schwebstoffilter zurückgehalten werden. Durch diese Stoffe und auch durch weitere kann auch das Schwebstoffilter zerstört werden.Known filters for breathing apparatus, room filters or the like. exist from a coal filling and, if necessary, suspended matter Filter. Under certain circumstances, these components can become ineffective, and even become ineffective dangerous effect: high concentrations of a pollutant from the coal is retained, can generate such a high heat of deaeration that the coal fades away. The same effect can occur when substances have a strong oxidizing effect or substances which, when filtered, result in a separation of pyrophoric metals, be retained by the carbon or the particulate filter. Through these substances and the HEPA filter can also be destroyed by others.

Der erfindung liegt die Aufgabe zugrunde, das Filter so aufzubauen, daß es durch die schädigenden Stoffe nicht zerstört werden kann.The invention is based on the task of constructing the filter in such a way that that it cannot be destroyed by the harmful substances.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß das Filter Molekularsieb (Zeolithe od.dgl.) enthält, dessert Porengröße zwischen 3.10'8 und 20.10-8 cm liegt, insbesondere etwa 4.10 8 oder l3.lO8 cm ist.According to the invention, this object is achieved in that the filter Molecular sieve (zeolites or the like.) Contains dessert pore size between 3.10'8 and 20.10-8 cm, in particular about 4.10 8 or 13.108 cm.

Das Filter kann ausschließlich mit Molekularsieb gefüllt sein, oder es kann eine Schicht Molekularsieb vor eine Kohleschicht, eine Schwebstoffschicht oder eine Kombination geschaltet sein. Es ist natürlich auch denkbar, daß die Molekularsiebschick sich äe nach zu filtrierendem Stoff zwischen einer Schwebstofffilterschicht und einer Kohleschicht befindet. Das Molekularsieb kann in dem gleichen Gehäuse wie die Kohle und das Schwebstofffilter oder auch in einem davon getrennten Gehäuse untergebracht sein, Es ist auch möglich, bekannte Filter derart zu verwenden, daß ihnen mit Hilfe geeigneter Anschlüsse ein Molekularsieb-Filterteil vorgeschaltet ist.The filter can only be filled with molecular sieve, or there can be a layer of molecular sieve in front of a layer of carbon, a layer of suspended matter or a combination. It is of course also conceivable that the molecular sieve send depending on the material to be filtered between a suspended matter filter layer and a layer of coal is located. The molecular sieve can be in the same housing as the carbon and the particulate filter or in a separate housing It is also possible to use known filters in such a way that A molecular sieve filter section is connected upstream of them with the aid of suitable connections is.

Claims (1)

P a t e n t a n s p r u c h : P a t e n t a n s p r u c h: Filter für Atemschutzgeräte, Raumfil#er od.dgl., dadurch g e k e n n z e i c h n e t , daß dieses-Molekularsieb (Zeolithe od.dgl.) enthält, dessen Porengröße zwischen 3.10-8 und 20.10-8 cm liegt, insbesondere etwa 4.10-8 oder 13.10-8 cm ist.Filters for breathing apparatus, room filters or the like N z e i c h n e t that this molecular sieve (zeolites or the like.) Contains its Pore size is between 3.10-8 and 20.10-8 cm, in particular about 4.10-8 or 13.10-8 cm is.
DE19691964739 1969-12-12 1969-12-12 Air filter Pending DE1964739A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19691964739 DE1964739A1 (en) 1969-12-12 1969-12-12 Air filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691964739 DE1964739A1 (en) 1969-12-12 1969-12-12 Air filter

Publications (1)

Publication Number Publication Date
DE1964739A1 true DE1964739A1 (en) 1971-06-16

Family

ID=5754891

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19691964739 Pending DE1964739A1 (en) 1969-12-12 1969-12-12 Air filter

Country Status (1)

Country Link
DE (1) DE1964739A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3941573A (en) * 1974-05-02 1976-03-02 James Frederick Chapel Apparatus for removing anesthetic gases
EP0017350A1 (en) * 1979-03-09 1980-10-15 Laporte Industries Limited Surgical mask
EP0389100A1 (en) * 1989-03-20 1990-09-26 Wallace H. Wireman Gas and odor adsorbing unit
US6997416B2 (en) 2000-06-29 2006-02-14 Astrium Gmbh Linear actuation device for spacecraft and solar generator unfolding systems

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3941573A (en) * 1974-05-02 1976-03-02 James Frederick Chapel Apparatus for removing anesthetic gases
EP0017350A1 (en) * 1979-03-09 1980-10-15 Laporte Industries Limited Surgical mask
EP0389100A1 (en) * 1989-03-20 1990-09-26 Wallace H. Wireman Gas and odor adsorbing unit
US6997416B2 (en) 2000-06-29 2006-02-14 Astrium Gmbh Linear actuation device for spacecraft and solar generator unfolding systems

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