NO834547L - BREATHING PROTECTION DEVICE WITH PRESSURE EQUIPMENT - Google Patents
BREATHING PROTECTION DEVICE WITH PRESSURE EQUIPMENTInfo
- Publication number
- NO834547L NO834547L NO834547A NO834547A NO834547L NO 834547 L NO834547 L NO 834547L NO 834547 A NO834547 A NO 834547A NO 834547 A NO834547 A NO 834547A NO 834547 L NO834547 L NO 834547L
- Authority
- NO
- Norway
- Prior art keywords
- breathing
- protection device
- valve
- pressure
- breathing protection
- Prior art date
Links
- 230000029058 respiratory gaseous exchange Effects 0.000 title claims description 17
- 239000000126 substance Substances 0.000 claims description 7
- 230000000241 respiratory effect Effects 0.000 claims 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
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
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)
- External Artificial Organs (AREA)
Description
Oppfinnelsen vedrører en pustebeskyttelsesinnretning med trykkutligning, som angitt i innledningen til patentkrav 1. The invention relates to a breathing protection device with pressure compensation, as stated in the introduction to patent claim 1.
Pustebeskyttelsesinnretninger som medføres som egenrednings-utstyr, vil kunne utsettes for meget sterkt varierende omgivelsestrykk. Man kan her tenke på bruk i dykkerkammere, i gruvedriften og også i fly. Det varierende yttertrykk belaster den lukkede pustebeskyttelsesinnretning. Når innretningen er pakket i en beholder vil denne belastes. Foreligger innretningen som et lukket og løst apparat, så belastes eksempelvis pusteslangen. Breathing protection devices that are carried as self-rescue equipment may be exposed to greatly varying ambient pressure. One can think of use in diving chambers, in mining and also in aircraft. The varying external pressure stresses the closed breathing protection device. When the device is packed in a container, this will be charged. If the device is a closed and loose device, then the breathing tube is stressed, for example.
En kjent sur stoffgenerator har en overtrykkventil i bunnen av sin beholder. Denne overtrykkventil har til oppgave å redusere den trykkforskjell som oppstår ved bruk av innretningen i et omgivende miljø med redusert trykk. Luft vil da strømme innenfra og ut. Det benyttes her vanligvis en enkel ventil som åpner seg ved et overtrykk (US-PS 3.580.250). A known acidic substance generator has a pressure relief valve at the bottom of its container. This relief valve has the task of reducing the pressure difference that occurs when the device is used in an environment with reduced pressure. Air will then flow from the inside out. A simple valve is usually used here which opens when there is an overpressure (US-PS 3,580,250).
En ulempe er imidlertid at trykkutligningen bare er mulig medOne disadvantage, however, is that the pressure equalization is only possible with
et overtrykk innenfra og utad.an overpressure from the inside out.
Hensikten med oppfinnelsen er å tilveiebringe en ventilinn-retning hvormed det muliggjøres en trykkutligning i begge retninger, altså både ved et indre såvel som et ytre over-henholdsvis undertrykk. The purpose of the invention is to provide a valve device with which a pressure equalization is made possible in both directions, i.e. both with an internal as well as an external over-respective negative pressure.
Dette oppnås ifølge oppfinnelsen ved at kjemikaliepatronen i bunnen bærer en ved et ytre undertrykk åpnende ventil og en ved et ytre overtrykk åpnende ventil. Ventilene åpner seg ved omtrent det tidobbelte av de i pustebeskyttelsesinnretninger vanlige pustemotstander. According to the invention, this is achieved by the chemical cartridge in the bottom carrying a valve that opens at an external negative pressure and a valve that opens at an external overpressure. The valves open at approximately ten times the breathing resistance common in breathing protection devices.
Denne løsning som man kan tilveiebringe ved bruk av enkle og like, bare i motsatte retninger monterte ventiler, vil i pustebeskyttelsesinnretninger forhindre for store trykkforskjeller mellom innerrom og ytterrom, dvs. trykkforskjeller som ellers ville kunne gi for store belastninger på komponentene. Av vektårsaker må innretningene ha en lett konstruksjon. Heller ikke de elastiske deler, såsom eksempelvis pusteslangen, tåler for store belastninger. This solution, which can be provided by using simple and identical valves mounted only in opposite directions, will in breathing protection devices prevent excessive pressure differences between the inner space and the outer space, i.e. pressure differences that would otherwise put too great a strain on the components. For reasons of weight, the devices must have a light construction. Nor can the elastic parts, such as the breathing tube, withstand excessive loads.
Fordelaktig kan baerebeholderen være forsynt med en ventilene. Man oppnår da de samme fordeler. Advantageously, the carrier container can be provided with a valve. You then achieve the same benefits.
Et utførelseseksempel av oppfinnelsen er vist på tegningenAn embodiment of the invention is shown in the drawing
og skal beskrives nedenfor. Pustebeskyttelsesinnretningen er bygget opp på vanlig måte. Den består av en kjemikaliepatron 1 som fjerner kullsyre fra den utpustede luft og produserer surstoff. Forbindelsen til bæreren skjer ved hjelp av en slange 2 med tilsluttet munnstykke 3. I beredsskapstillingen er munnstykket 3 lukket med en propp 4, og kjemikaliepatronen 1 er lukket ved hjelp av et bunnlukke 5. and shall be described below. The breathing protection device is constructed in the usual way. It consists of a chemical cartridge 1 which removes carbon dioxide from the exhaled air and produces oxygen. The connection to the carrier is made by means of a hose 2 with a connected mouthpiece 3. In the standby position, the mouthpiece 3 is closed with a stopper 4, and the chemical cartridge 1 is closed with the help of a bottom lid 5.
Pustingen kan skje etter at proppen 4 og bunnlukket 5, idet innretningen så arbeider med pendelpusting. The breathing can take place after the stopper 4 and the bottom cover 5, as the device then works with pendulum breathing.
Kjemikåliepatronens bunn 6 er forsynt med en ved et ytre undertrykk åpnende ventil 7 og med en ved et ytre overtrykk åpnende ventil 8. Åpningstrykkene til de to ventiler 7, 8 svarer omtrent til 10 ganger de vanlige pustemotstander, og åpningstrykkene bestemmes av trykkfjærene 9. Ventilene vil under normalbetingelser være så tette at luft fra omgivelsen ikke kan trenge inn. The bottom of the chemical oil cartridge 6 is equipped with a valve 7 that opens at an external negative pressure and with a valve 8 that opens at an external overpressure. The opening pressures of the two valves 7, 8 correspond approximately to 10 times the normal breathing resistance, and the opening pressures are determined by the pressure springs 9. The valves will under normal conditions be so tight that air from the surroundings cannot penetrate.
Når pustebeskyttelsesinnretningene er anordnet i bærebeholdere, kan disse være forsynt med ventilene 7, 8. When the breathing protection devices are arranged in carrying containers, these can be provided with the valves 7, 8.
Claims (3)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3300301 | 1983-01-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO834547L true NO834547L (en) | 1984-07-09 |
Family
ID=6187814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO834547A NO834547L (en) | 1983-01-07 | 1983-12-09 | BREATHING PROTECTION DEVICE WITH PRESSURE EQUIPMENT |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS59137070A (en) |
| FR (1) | FR2539037B1 (en) |
| GB (1) | GB2132900A (en) |
| NO (1) | NO834547L (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3610492A1 (en) * | 1986-03-27 | 1987-10-01 | Draegerwerk Ag | RESPIRATOR |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3615233A (en) * | 1969-07-28 | 1971-10-26 | Chemetron Corp | Disposable carbon dioxide absorber |
| US3738360A (en) * | 1971-04-07 | 1973-06-12 | G Dryden | Unitary disposable circle absorption canister assembly |
| US4210137A (en) * | 1976-01-05 | 1980-07-01 | Henkin Melvyn Lane | Altitude conditioning method and apparatus |
-
1983
- 1983-12-09 NO NO834547A patent/NO834547L/en unknown
- 1983-12-16 GB GB08333633A patent/GB2132900A/en not_active Withdrawn
- 1983-12-28 FR FR8321163A patent/FR2539037B1/en not_active Expired
-
1984
- 1984-01-06 JP JP59000347A patent/JPS59137070A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2539037A1 (en) | 1984-07-13 |
| GB8333633D0 (en) | 1984-01-25 |
| FR2539037B1 (en) | 1986-08-29 |
| GB2132900A (en) | 1984-07-18 |
| JPS59137070A (en) | 1984-08-06 |
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