EP1838394B1 - Sauerstoff erzeugendes atemschutzgerät - Google Patents

Sauerstoff erzeugendes atemschutzgerät Download PDF

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Publication number
EP1838394B1
EP1838394B1 EP06722457A EP06722457A EP1838394B1 EP 1838394 B1 EP1838394 B1 EP 1838394B1 EP 06722457 A EP06722457 A EP 06722457A EP 06722457 A EP06722457 A EP 06722457A EP 1838394 B1 EP1838394 B1 EP 1838394B1
Authority
EP
European Patent Office
Prior art keywords
air treatment
chemical
treatment chambers
oxygen
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.)
Active
Application number
EP06722457A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1838394A1 (de
Inventor
Frank Krüger
Karl-Heinz Feldner
Karl-Heinz KÖHRICHT
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.)
MSA Auer GmbH
Original Assignee
MSA Auer 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 MSA Auer GmbH filed Critical MSA Auer GmbH
Priority to PL06722457T priority Critical patent/PL1838394T3/pl
Publication of EP1838394A1 publication Critical patent/EP1838394A1/de
Application granted granted Critical
Publication of EP1838394B1 publication Critical patent/EP1838394B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B7/00—Respiratory apparatus
    • A62B7/08—Respiratory apparatus containing chemicals producing oxygen

Definitions

  • the invention relates to an oxygen-generating respirator comprising a connected to a breathing tube and a breathing bag, for generating oxygen in both directions flowed through chemical cartridge, the chemical cartridge having a plurality of air-permeable holding grid separated air treatment chambers, and a breathing bag adjacent the air treatment chamber with a carbon dioxide is filled in the other air treatment chambers, the granular chemical for oxygen generation.
  • An oxygen-generating respirator of this kind is out US 4,515,156 A previously known. This is to an improved distribution and mixing of the breathing gas can be achieved by dividing the chemical cartridge in air treatment chambers. For better heat distribution and removal multicellular space lattice and for damping shock loads coil springs and perforated transverse walls are provided.
  • the exhaled air of the user is passed through a chemical contained in a canister or chemical cartridge, for example, in granular form, potassium peroxide (KO 2 ).
  • the carbon dioxide contained in the exhaled air and reacting with the chemical oxygen is produced in an exothermic reaction, which passes from the chemical cartridge in a breathing bag and is inhaled by the user again.
  • These devices where the Exhaling in a so-called pendulum respiration on the chemical and against the resulting resistance, are in case of sudden contamination of the air as self-rescuers or escape aids for a limited period of use, for example, 20 minutes and the single use, for example, in mines determined.
  • the rescue device consisting of the chemical cartridge with breathing bag and breathing tube has a small design and is carried in a stable container by the user during work in a hazardous work area, for example by attachment to the belt, for safety reasons constantly carried (passive use) to Emergency case immediately created and used actively.
  • the device must still be ready for use and fully functional in an emergency. This is contrary, however, that the present for the light air passage in granular form chemical due to the multiple, possibly long lasting vibration of the device of a gradual pulverization subject.
  • the powder can fall into the breathing bag or settle in the region of the bottom of the chemical cartridge and thus in the opening to the breathing bag on a the fine dust particles retentive cotton-like material and due to moisture or the heat generated due to the exothermic reaction to oxygen to bond with the Cotton or caking lead, so that unimpeded flow of breathing air and thus the functioning of the rescue device is not guaranteed.
  • Hardening of the granules which would reduce abrasion and dusting, results in decreased reactivity and retarded chemical reaction with the carbon dioxide, so that in this case too little oxygen is generated.
  • the multi-layered superimposed wire mesh which can also create a flat against the inner walls of the cartridge, the granules completely traversing air passageway is created so that a large part of the carbon dioxide contained in the exhaled air does not come into contact with the chemical and thus is not absorbed.
  • the invention has for its object to provide an oxygen-generating respirator, in which a functionality is maintained despite full external mechanical impact unrestricted.
  • this object is achieved with an oxygen-generating respirator characterized in that in the outer air treatment chambers on a frontal, apertured cover of the chemical cartridge subsequent and transverse to the flow direction planar shock damping means of a multi-layer fine wire knit and in the middle air treatment chambers each one of a multilayer , Zigzag extending and fixed to one side of a wire mesh fine wire knit existing damping element is provided with aligned in the flow direction, but offset in the adjacent air treatment chambers walls arranged to each other.
  • the oxygen-generating respirator designed according to the invention as self-rescuer for persons working under robust conditions, is able to function immediately and with high respiratory physiological performance without restriction even after long years of external mechanical action in a necessary application.
  • the oxygen-generating respirator comprises a chemical cartridge in which oxygen is generated for breathing with the carbon dioxide contained in the exhaled air.
  • a breathing tube with mouthpiece and on the opposite side a breathing bag is connected as an air reservoir.
  • the chemical cartridge is subdivided according to the invention by means of fixed holding grids in individual, successive air treatment chambers.
  • the provided in adjacent air treatment chambers zigzag damping elements are not in alignment, but offset from each other, preferably mirror images, arranged.
  • the present in granular form of chemicals for oxygen generation and - optionally housed in a chamber for carbon dioxide - packed tightly by shaking and pressing.
  • the resilient fine wire knit fabrics of the shock absorbers have a very smooth outer surface.
  • the oxygen-generating respirator According to the present invention, even after many years of non-active use, in which the device and in particular the chemical, high mechanical loads (shocks, shocks) has been exposed, in the case of active use immediately and without restriction higher Performance possible to provide the oxygen required for the user's breathing.
  • the chemical granules are housed so resiliently cushioned in the cartridge, that despite long-lasting high mechanical stress hardly abrasion, that is, no functioning of the counteracting pulverization of the granules.
  • the inventive design of the chemical cartridge allows the use of a very coarse-grained - inexpensive - chemical and optimal flow through the chemical cartridge with high performance data.
  • preferably four air treatment chambers are provided.
  • the two outer chambers are significantly smaller than the inner ones.
  • the outer chamber connected to the breathing bag is filled with lithium hydroxide tablets as a carbon dioxide-binding chemical, while the other chambers contain a very coarse-grained potassium hydroxide granules for oxygen production.
  • the damping means provided in the two outer chambers consist of copper and at the same time serve as additional heat exchangers for cooling the respiratory air, which is strongly heated by the exothermic reaction during the oxygen generation, so that the breathing comfort is improved.
  • the damping elements in the middle air treatment chambers are made of a prefabricated as a hose fine wire mesh made of stainless steel.
  • the tube is compressed and folded once in the longitudinal direction, after previously for stabilization in the middle of a copper wire knit insert was introduced. After the subsequent stitching, the fabric package is folded zigzag and connected to one of the zigzag running edges with a wire mesh.
  • the substantially parallel to the inner wall extending folding edges of the fabric package are located at a distance from the inner surface of the relevant air treatment chamber in the chemical cartridge.
  • the breathing apparatus for generating oxygen comprises a breathing bag 1 made of airtight material, a chemical cartridge 2 sealingly held in an opening of the breathing bag 1, and a breathing tube 3 having a mouthpiece 4 and a nose clip 5.
  • the breathing tube 3 is integral with a receptacle comprising the upper portion of the chemical cartridge 2 6, via which the chemical cartridge 2 is sealingly held by means of a clamp attachment 7 in the breathing bag 1.
  • the respirator is packaged during non-active use in a sturdy metal container, preferably held on the belt of the user. If the respirator wearer is in an environment with non-respirable gas or smoke, the packaging container is opened and then inhaled and exhaled via the mouthpiece 4.
  • the heat exchanger 12 consists of a package of fine copper screens and an air-permeable, but very fine particle-retaining, bordered by two coarse mesh stainless steel mesh cover.
  • the chemical cartridge 2 is subdivided into four air treatment chambers 15 to 18 by three holding screens 14a to 14c respectively fixed to a snap ring 13a to 13c.
  • the first (upper) air treatment chamber 15 and in the fourth (lower) air treatment chamber 18 are - starting from the upper and lower cover 10, 9 - a coarse screen 19a, 19b made of stainless steel, a fine mesh 20a, 20b made of copper and a multilayer A flat elastic fine wire knit made of copper as upper and lower shock absorbing means 21a, 21b.
  • the respectively subsequent second and third air treatment chamber 16 17 towards the first and fourth air treatment chamber 15 and 18 are respectively limited by the above-mentioned holding screen 14 a and 14 c.
  • the fine sieves 20a, 20b are there for safety and possibly retain any fine KO 2 particles present in the chemical cartridge 2.
  • the arrangement of the first, relatively shallow air treatment chamber 15 ensures the immediate function of the respirator, that is, the reaction of the carbon dioxide with the potassium peroxide to oxygen, even at very low temperatures, for example -5 ° C.
  • the lithium hydroxide in the fourth air treatment chamber 18 has the task of binding the excess CO 2 , which arises at high respiratory rates.
  • damping elements 24, 25 are each at a - zick- zackförmig extending edge to a wire mesh 26, 27 attached.
  • the longitudinal edges 28 of the folds, that is, the fold edges of the damping elements 24, 25 extend at a distance parallel to the side walls 29 of the chemical cartridge 2.
  • the fine wire mesh of the damping elements 24, 25 consists of four - formed from a folded and longitudinally once folded tube - layers made of stainless steel and a stabilizing copper wire mesh lying between the two outer layers thus formed.
  • the latter are arranged in mirror image relative to one another with respect to the zigzag shape, so that their mutual walls are offset from one another, that is, they are not in alignment.
  • a particularly uniform flow through the two filled with potassium hydroxide granules 22 air treatment chambers 16, 17 is achieved, so that a cost coarse granules can be used and due to the resulting optimum flow of respiratory air ultimately very good respiratory physiological performance data can be achieved.

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Emergency Medicine (AREA)
  • General Chemical & Material Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • External Artificial Organs (AREA)
EP06722457A 2005-01-19 2006-01-19 Sauerstoff erzeugendes atemschutzgerät Active EP1838394B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06722457T PL1838394T3 (pl) 2005-01-19 2006-01-19 Aparat oddechowy wytwarzający tlen

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005003176A DE102005003176B3 (de) 2005-01-19 2005-01-19 Sauerstoff erzeugendes Atemschutzgerät
PCT/DE2006/000072 WO2006076895A1 (de) 2005-01-19 2006-01-19 Sauerstoff erzeugendes atemschutzgerät

Publications (2)

Publication Number Publication Date
EP1838394A1 EP1838394A1 (de) 2007-10-03
EP1838394B1 true EP1838394B1 (de) 2010-06-16

Family

ID=36293670

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06722457A Active EP1838394B1 (de) 2005-01-19 2006-01-19 Sauerstoff erzeugendes atemschutzgerät

Country Status (10)

Country Link
US (1) US8230854B2 (zh)
EP (1) EP1838394B1 (zh)
CN (1) CN101107046B (zh)
AT (1) ATE471184T1 (zh)
AU (1) AU2006207719B2 (zh)
DE (2) DE102005003176B3 (zh)
ES (1) ES2347818T3 (zh)
PL (1) PL1838394T3 (zh)
WO (1) WO2006076895A1 (zh)
ZA (1) ZA200705527B (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11813486B2 (en) 2016-09-12 2023-11-14 Msa Europe Gmbh Cartridge and breathing apparatus containing the same

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008041938B4 (de) * 2008-09-10 2013-05-29 Msa Auer Gmbh Heizpatrone zum Erhitzen von Atemluft in einem Trainingsatemgerät
US10441827B2 (en) * 2011-12-14 2019-10-15 Draeger Medical Systems, Inc. Hybrid self-rescue equipment
CN102671318B (zh) * 2012-05-14 2014-07-23 北京安氧特科技有限公司 一种常温相变材料制冷的化学制氧呼吸器
CN102874760B (zh) * 2012-09-11 2014-10-22 中国中煤能源集团有限公司 用于煤矿井下紧急避险的超氧化钾空气再生装置
CN103071253A (zh) * 2013-01-24 2013-05-01 北京安氧特科技有限公司 一种用于化学氧呼吸器的反应罐
DE102015013354B4 (de) 2015-10-15 2018-11-29 Dräger Safety AG & Co. KGaA Atemschutzgerät
US10149990B2 (en) 2016-11-18 2018-12-11 Soteria Technologies Llc Portable, light-weight oxygen-generating breathing apparatus
CN108211151A (zh) * 2017-12-29 2018-06-29 陕西斯达防爆安全科技股份有限公司 一种化学氧自救器
CN107998528A (zh) * 2017-12-29 2018-05-08 陕西斯达防爆安全科技股份有限公司 一种化学氧自救器用生氧药罐
PL424362A1 (pl) * 2018-01-25 2019-07-29 Dezega Polska Spółka Z Ograniczoną Odpowiedzialnością System monitorowania parametrów stanu działania wielu hermetycznie zamkniętych obiektów
RU2693524C1 (ru) * 2018-07-13 2019-07-03 Акционерное общество "Корпорация "Росхимзащита" Регенеративный патрон изолирующего дыхательного аппарата
UA135747U (uk) * 2019-02-21 2019-07-10 Товариство З Обмеженою Відповідальністю "Дезега Холдінг Україна" Саморятівник з хімічно зв'язаним киснем
CN115127154A (zh) * 2021-03-19 2022-09-30 广州联动万物科技有限公司 一种空调滤网组件和空调器

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DE509032C (de) * 1926-12-28 1930-10-03 Carl Von Hoff Gasschutzfilterpatrone
US2517209A (en) * 1947-07-02 1950-08-01 Mine Safety Appliances Co Oxygen liberating canister
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DE3150412A1 (de) * 1981-12-19 1983-07-14 Drägerwerk AG, 2400 Lübeck Notatemschutzgeraet
US4515156A (en) * 1983-01-17 1985-05-07 Vsesojuzny Nauchno-Issledovatelsky Institut Gornospasatelngo Dela Regenerative canister of a self-contained oxygen-breathing apparatus on chemically fixed oxygen
DE3426757A1 (de) * 1984-07-20 1986-01-30 Auergesellschaft Gmbh, 1000 Berlin Atemschutzgeraet als sauerstoffselbstretter
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11813486B2 (en) 2016-09-12 2023-11-14 Msa Europe Gmbh Cartridge and breathing apparatus containing the same

Also Published As

Publication number Publication date
ZA200705527B (en) 2008-04-30
CN101107046A (zh) 2008-01-16
US8230854B2 (en) 2012-07-31
EP1838394A1 (de) 2007-10-03
PL1838394T3 (pl) 2011-01-31
ES2347818T3 (es) 2010-11-04
DE502006007225D1 (de) 2010-07-29
AU2006207719A1 (en) 2006-07-27
ATE471184T1 (de) 2010-07-15
US20080276934A1 (en) 2008-11-13
WO2006076895A1 (de) 2006-07-27
DE102005003176B3 (de) 2006-07-20
AU2006207719B2 (en) 2010-11-11
CN101107046B (zh) 2011-08-17

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