DE1964739A1 - Air filter - Google Patents
Air filterInfo
- 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
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
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)
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)
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 |
-
1969
- 1969-12-12 DE DE19691964739 patent/DE1964739A1/en active Pending
Cited By (4)
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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