DE939308C - Ring filter filled with gas-binding substances, in particular grained activated carbon, and specifically intended for protective room ventilators - Google Patents

Ring filter filled with gas-binding substances, in particular grained activated carbon, and specifically intended for protective room ventilators

Info

Publication number
DE939308C
DE939308C DED10577D DED0010577D DE939308C DE 939308 C DE939308 C DE 939308C DE D10577 D DED10577 D DE D10577D DE D0010577 D DED0010577 D DE D0010577D DE 939308 C DE939308 C DE 939308C
Authority
DE
Germany
Prior art keywords
gas
filter
ring
activated carbon
binding substances
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
Application number
DED10577D
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.)
Draegerwerk AG and Co KGaA
Original Assignee
Draegerwerk AG and Co KGaA
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 Draegerwerk AG and Co KGaA filed Critical Draegerwerk AG and Co KGaA
Priority to DED10577D priority Critical patent/DE939308C/en
Application granted granted Critical
Publication of DE939308C publication Critical patent/DE939308C/en
Expired legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B19/00Cartridges with absorbing substances for respiratory apparatus

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Description

Die Erfindung betrifft ein, Ringfilter, das mit gasbindenden Stoffen, insbesondere gekörnter Aktivkohle, beschickt und namentlich für Schutzraumbelüfter bestimmt ist, und bei dem auf der Filtermasse ein in seiner Höhenlage verschiebbarer Ringdeckel liegt, der unter der Wirkung mehrerer, in einen darüber angeordneten festen Deckel eingebauter Federn ständig auf , die Filtermasse drückt. Dadurch soll vermieden werden, daß beim Zusammensinken der Filtermasse infolge von Erschütterungen Kurzschlußwege für die Luft entstehen. .The invention relates to a ring filter that is filled with gas-binding substances, in particular granular activated carbon, charged and specifically for protective space ventilators is determined, and in which on the filter mass a displaceable in its height position Ring cover lies, which is under the action of several, in one arranged above Fixed cover of built-in springs constantly on, the filter mass presses. This is supposed to be avoided that when the filter mass collapses as a result of vibrations Short-circuit paths for the air arise. .

Die Erfindung erstrebt eine weitere Sicherung derartiger Filter gegen Kurzschlüsse und besteht darin, daß der innere Rand des Filterringes unter Vermittlung einer Faltenmanschette aus gasundurchlässigem Gewebe oder einem biegsamen, dünnen Metall gasdicht mit dem inneren Rand des Filtergehäuses verbunden ist. Dadurch wird mit Sicherheit vermieden, daß Luft statt durch die Filtermasse hindurch über die Filtermasse hinweg strömt und so ungereinigt das Filter verläßt.The invention seeks to further secure such filters against Short circuits and consists in that the inner edge of the filter ring under mediation a folded cuff made of gas-impermeable fabric or a flexible, thin one Metal is gas-tight connected to the inner edge of the filter housing. This will certainly avoided that air instead of through the filter mass through the Filter mass flows away and thus leaves the filter uncleaned.

Der bewegliche Deckel kann an seiner Unterseite einen ringförmigen Ansatz oder zwei ringförmige Ansätze tragen, die sich unter der Wirkung der Federn in die Filtermasse eindrücken. Auch dadurch werden Kurzschlußwege der Luft unmöglich gemacht.The movable cover can have an annular shape on its underside Approach or two ring-shaped attachments that extend under the action of springs press into the filter material. This also makes short-circuit paths in the air impossible made.

Der bewegliche Deckel kann aus sehr dünnem Metallblech oder einem anderen gasdichten und schmiegsamen Stoff, ä. B. Gummi mit Gewebeeinlage, bestehen. Bei dieser Bauart lassen sich-diesoeben beschriebenen ringförmigen Ansätze nicht anbringen. Da aber der dünne Deckel sich allen Formänderungen der Oberfläche .der Filtermasse schnell und sicher anpaßt, so sind derartige Ansätze zu diesen Fällen auch nicht notwendig.The movable cover can be made of very thin sheet metal or a other gas-tight and pliable material, e.g. rubber with a fabric insert. With this type of construction, the ring-shaped approaches described above cannot be used attach. However, since the thin cover is subject to all changes in the shape of the surface Filter mass adapts quickly and safely, so are such approaches to these cases also not necessary.

In der Zeichnung ist eine Ausführungsform des neuen Ringfilters dargestellt. Dabei zeigt Abb. i einen senkrechten Schnitt durch den oberen Teil des Ringfilters und Abb. a eine Aufsicht auf den Deckel.The drawing shows an embodiment of the new ring filter. Fig. I shows a vertical section through the upper part of the ring filter and Fig. a is a plan view of the lid.

Das Filtergehäuse besteht aus siebartig gelochten Blechen a, die einen in sich geschlossenen, mit gekörnter Aktivkohle b beschickten Filterring bilden. Die Luft tritt von außen durch die Aktivkohleschicht b hindurch und tritt gereinigt in den Ringhohlraum c ein, aus dem sie in den zu belüftenden Raum strömt. Das Gehäuse ist oben durch einen festen Deckel d abgeschlossen, in dem mehrere Druckfedern e untergebracht sind. Diese Federn drücken auf den beweglichen Deckel f, der unter Vermittlung der Faltenmanschetteg mit dem festen Deckel d gasdicht verbunden ist. Bei der gezeichneten Ausführungsform -sind an der Unterseite des beweglichen Deckels f ringförmige Ansätze h angeordnet, die unter der Wirkung der Federn e in die körnige Filtermasse hineingedrückt werden.The filter housing consists of sieve-like perforated metal sheets a, which form a self-contained filter ring loaded with granular activated carbon b. The air passes from the outside through the activated carbon layer b and, in a purified state, enters the annular cavity c, from which it flows into the space to be ventilated. The housing is closed at the top by a fixed cover d, in which several compression springs e are housed. These springs press on the movable cover f, which is connected to the fixed cover d in a gas-tight manner through the intermediary of the fold cuffs. In the embodiment shown, annular lugs h are arranged on the underside of the movable cover f and are pressed into the granular filter material under the action of the springs e.

Claims (1)

PATENTANSPRÜCHE: i. Ringfilter, das mit gasbindenden Stoffen, insbesondere gekörnter Aktivkohle, beschickt und namentlich für Schutzraumbelüfter bestimmt ist und bei dem auf der Filtermasse ein in seiner Höhenlage verschiebbarer Ringdeckel liegt, der unter der Wirkung mehrerer in einen darüber angeordneten festen Deckel eingebauter Federn ständig auf die Filtermasse drückt, dadurch. gekennzeichnet, daß der innere Rand des Filterringes unter Vermittlung einer Faltenmanschette (g) aus gasundurchlässigem Gewebe oder einem biegsamen, dünnen Metall gasdicht mit dem inneren Rand des Filtergehäuses verbunden ist. z. Ringfilter nach Anspruch i, dadurch gekennzeichnet, daß der-bewegliche Deckel (f) an seiner Unterseite einen ringförmigen Ansatz oder zwei ringförmige Ansätze (h) trägt, die sich unter der Wirkung der Federn (e) in die Filtermasse eindrücken. 3. Ringfilter nach Anspruch i, dadurch gekennzeichnet, daß-der bewegliche Deckel (f) aus sehr dünnem Metallblech oder einem anderen gasdichten und schmiegsamen Stoff, z. B. Gummi mit Gewebeeinlage, besteht. Angezogene Druckschriften: »Die Gasmaske«, .1931, S. 1o3.PATENT CLAIMS: i. Ring filter with gas-binding substances, in particular granulated activated carbon, charged and specifically intended for protective space ventilators and in the case of a ring cover which is displaceable in its height position on the filter material which is under the action of several in a fixed lid arranged above it built-in springs constantly presses on the filter mass, thereby. marked, that the inner edge of the filter ring with the help of a pleated sleeve (g) made of gas-impermeable fabric or a flexible, thin metal gas-tight with the inner edge of the filter housing is connected. z. Ring filter according to claim i, characterized characterized in that the movable cover (f) has an annular shape on its underside Approach or two ring-shaped attachments (h) which extend under the action of springs (e) press into the filter mass. 3. Ring filter according to claim i, characterized in that that-the movable cover (f) made of very thin sheet metal or another gas-tight and pliable fabric, e.g. B. rubber with fabric insert. Referred publications: "The gas mask", .1931, p. 1o3.
DED10577D 1939-06-08 1939-06-08 Ring filter filled with gas-binding substances, in particular grained activated carbon, and specifically intended for protective room ventilators Expired DE939308C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED10577D DE939308C (en) 1939-06-08 1939-06-08 Ring filter filled with gas-binding substances, in particular grained activated carbon, and specifically intended for protective room ventilators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED10577D DE939308C (en) 1939-06-08 1939-06-08 Ring filter filled with gas-binding substances, in particular grained activated carbon, and specifically intended for protective room ventilators

Publications (1)

Publication Number Publication Date
DE939308C true DE939308C (en) 1956-02-16

Family

ID=7033356

Family Applications (1)

Application Number Title Priority Date Filing Date
DED10577D Expired DE939308C (en) 1939-06-08 1939-06-08 Ring filter filled with gas-binding substances, in particular grained activated carbon, and specifically intended for protective room ventilators

Country Status (1)

Country Link
DE (1) DE939308C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1094108B (en) * 1957-01-26 1960-12-01 Draegerwerk Ag Filters for air raid shelters
DE1296019B (en) * 1966-11-03 1969-05-22 Ceag Concordia Elek Zitaets Ag Activated carbon filter cartridge for protective room ventilation systems
DE4115313A1 (en) * 1991-05-10 1992-11-12 Sylvia Gerigk Reduced size compact filter for harmful aerosols and gases - has active carbon filter bed compressed by springs with several filter stages arranged in series

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1094108B (en) * 1957-01-26 1960-12-01 Draegerwerk Ag Filters for air raid shelters
DE1296019B (en) * 1966-11-03 1969-05-22 Ceag Concordia Elek Zitaets Ag Activated carbon filter cartridge for protective room ventilation systems
DE4115313A1 (en) * 1991-05-10 1992-11-12 Sylvia Gerigk Reduced size compact filter for harmful aerosols and gases - has active carbon filter bed compressed by springs with several filter stages arranged in series
DE4115313C2 (en) * 1991-05-10 2001-11-22 Sylvia Gerigk Device for filtering irradiated and toxic aerosols and harmful gases

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