FR2524809A1 - Underwater breathing equipment - has aqualung with heat exchanger to reduce losses - Google Patents
Underwater breathing equipment - has aqualung with heat exchanger to reduce losses Download PDFInfo
- Publication number
- FR2524809A1 FR2524809A1 FR8206166A FR8206166A FR2524809A1 FR 2524809 A1 FR2524809 A1 FR 2524809A1 FR 8206166 A FR8206166 A FR 8206166A FR 8206166 A FR8206166 A FR 8206166A FR 2524809 A1 FR2524809 A1 FR 2524809A1
- Authority
- FR
- France
- Prior art keywords
- trap
- thermal
- aqualung
- heat exchanger
- heat
- 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.)
- Granted
Links
- 230000029058 respiratory gaseous exchange Effects 0.000 title 1
- 210000004072 lung Anatomy 0.000 claims abstract description 16
- 230000009189 diving Effects 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims abstract description 3
- 239000007789 gas Substances 0.000 claims description 14
- 230000000241 respiratory effect Effects 0.000 claims description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 2
- 239000001569 carbon dioxide Substances 0.000 claims description 2
- 230000003434 inspiratory effect Effects 0.000 claims description 2
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000006757 chemical reactions by type Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 101100269850 Caenorhabditis elegans mask-1 gene Proteins 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- HUAUNKAZQWMVFY-UHFFFAOYSA-M sodium;oxocalcium;hydroxide Chemical compound [OH-].[Na+].[Ca]=O HUAUNKAZQWMVFY-UHFFFAOYSA-M 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
- B63C11/02—Divers' equipment
- B63C11/28—Heating, e.g. of divers' suits, of breathing air
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B9/00—Component parts for respiratory or breathing apparatus
- A62B9/003—Means for influencing the temperature or humidity of the breathing gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
- B63C11/02—Divers' equipment
- B63C11/18—Air supply
- B63C11/22—Air supply carried by diver
- B63C11/24—Air supply carried by diver in closed circulation
Landscapes
- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
Description
L'invention concerne les circuits respiratoires à faux-poumon utilisé notamment en plongée sous-marine. The invention relates to respiratory circuits with false lungs used in particular in scuba diving.
La plongée sous-marine en eau profonde entraine des pertes thermiques respiratoires importantes de l'ordre de quelques dixièmes de kilowatt, soit par exemple de l'ordre de 0,5 kw dans un eau à 40C à une profondeur de 300 mètres. Ces pertes peuvent mettre en danger la vie du plongeur. Scuba diving in deep water causes significant respiratory thermal losses of the order of a few tenths of a kilowatt, or for example of the order of 0.5 kW in water at 40C at a depth of 300 meters. These losses can endanger the life of the diver.
L'invention vise à diminuer ces pertes. The invention aims to reduce these losses.
On.y parvient, selon l'invention, en disposant à l'entrée du faux-poumon un piège thermique disposé à l'entrée du faux-poumon pour piéger une partie des calories des gaz expirés lors de la phase expiratoire et pour fournir ces calories aux gaz inpirés dans le faux-poumon lors de la phase inspiratoire suivante. This is achieved, according to the invention, by arranging at the inlet of the false lung a thermal trap arranged at the inlet of the false lung to trap part of the calories of the gases exhaled during the expiratory phase and to supply these calories from gas inhaled into the false lung during the next inspiratory phase.
Sur le dessin joint
- la figure 7 est une coupe schématique d'un exemple de circuit respiratoire conforme à l'invention, et
- la figure 2 est une section droite d'un exemple de piège thermique.In the attached drawing
FIG. 7 is a schematic section of an example of a respiratory circuit according to the invention, and
- Figure 2 is a cross section of an example of a thermal trap.
Le circuit respiratoire représenté sur la figure 1 comprend un masque facial 1 (dans un casque 2) relié à un fauxpoumon 3 par un circuit fermé comprenant un conduit 4 pour les gaz expirés et un conduit 5 pour les gaz inspirés. Le conduit 4 est relié au faux-poumon par l'intermédiaire d'un dispositif exothermique d'épuration du gaz carbonique des gaz expirés, par exemple une cartouche 6 de chaux sodée. Ces dispositions sont en soi connues. The respiratory circuit shown in FIG. 1 comprises a facial mask 1 (in a helmet 2) connected to a false lung 3 by a closed circuit comprising a conduit 4 for expired gases and a conduit 5 for inspired gases. The conduit 4 is connected to the false lung by means of an exothermic device for purifying the carbon dioxide from the exhaled gases, for example a cartridge 6 of soda lime. These provisions are known per se.
La figure montre d'autres détails facultatifs du circuit respiratoire qu'il n'est pas utile de décrire car ils n'interviennent pas pour la compréhension de la présente invention. The figure shows other optional details of the respiratory circuit which it is not useful to describe because they do not intervene for the understanding of the present invention.
Selon l'invention, à l'entrée du faux-poumon est disposé un piège thermique 7 qui se trouve de par sa situation sur le trajet des gaz expirés fournis au faux-poumon et, également, sur celui des gaz inspirés prélevés dans le fauxpoumon. According to the invention, at the entrance to the false lung is disposed a thermal trap 7 which is located by its location on the path of the exhaled gases supplied to the false lung and, also, on that of the inspired gases taken from the false lung .
De préférence, les conduits 4 et 5 sont en matériau isolant thermique. Preferably, the conduits 4 and 5 are made of thermal insulating material.
Les pièges thermiques sont connus en soi et utilisés par exemple dans le moteur thermique de type STERLING. Un piège thermique comprend essentiellement des matériaux léchés par les gaz et dont les surfaces, la conductivité et la capacité thermique sont propres à établir un échange theraiique rapide entre le gaz et les matériaux du piège. Thermal traps are known per se and used for example in the STERLING type thermal engine. A thermal trap essentially comprises materials licked by the gases and whose surfaces, conductivity and thermal capacity are capable of establishing a rapid thermal exchange between the gas and the materials of the trap.
La figure 2 représente un exemple de piège thermique. Figure 2 shows an example of a thermal trap.
Ce piège est constitué par un empilage de plaques de métal 8, alternant avec des grillages ondulés 9, dans un boîtier 10. This trap is constituted by a stack of metal plates 8, alternating with corrugated gratings 9, in a housing 10.
La température des gaz expirés est d'environ 330C avant l'épurateur 6, d'environ 450C à la sortie de l'épurateur (du fait de la réaction exothermique dans l'épurateur) et d'environ 100C à l'entrée dans le faux-poumon après avoir traversé le piège 7. The temperature of the exhaled gases is approximately 330C before the purifier 6, approximately 450C at the outlet of the purifier (due to the exothermic reaction in the purifier) and approximately 100C at the entry into the false lung after crossing the trap 7.
Le faux-poumon est une poche souple à paroi mince immergée dans l'eau froide : la température dans le faux-poumon est pratiquement celle de l'eau ambiante, soit environ 40C par exemple. The false lung is a flexible pocket with a thin wall immersed in cold water: the temperature in the false lung is practically that of ambient water, around 40C for example.
Les gaz inspirés à cette température sont réchauffés par passage dans le piège thermique jusqu'à une température d'environ 300C. The gases inspired at this temperature are heated by passing through the thermal trap to a temperature of around 300C.
L'invention n'est pas limitée à la réalisation qui n'a été décrite qu'à titre d'exemple préféré. The invention is not limited to the embodiment which has only been described by way of preferred example.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8206166A FR2524809A1 (en) | 1982-04-08 | 1982-04-08 | Underwater breathing equipment - has aqualung with heat exchanger to reduce losses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8206166A FR2524809A1 (en) | 1982-04-08 | 1982-04-08 | Underwater breathing equipment - has aqualung with heat exchanger to reduce losses |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2524809A1 true FR2524809A1 (en) | 1983-10-14 |
| FR2524809B3 FR2524809B3 (en) | 1985-02-22 |
Family
ID=9272898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8206166A Granted FR2524809A1 (en) | 1982-04-08 | 1982-04-08 | Underwater breathing equipment - has aqualung with heat exchanger to reduce losses |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2524809A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2583706A1 (en) * | 1985-06-25 | 1986-12-26 | Lemasson Yves | Improvements to artificial-lung breathing apparatuses for deep diving |
| WO2003097444A1 (en) | 2002-05-22 | 2003-11-27 | Bardot, Laurence | Self-contained underwater breathing device with double gas stream circuit |
| GB2428011A (en) * | 2005-07-05 | 2007-01-17 | Clipper Data Ltd | Cardon dioxide gas scrubber |
-
1982
- 1982-04-08 FR FR8206166A patent/FR2524809A1/en active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2583706A1 (en) * | 1985-06-25 | 1986-12-26 | Lemasson Yves | Improvements to artificial-lung breathing apparatuses for deep diving |
| WO2003097444A1 (en) | 2002-05-22 | 2003-11-27 | Bardot, Laurence | Self-contained underwater breathing device with double gas stream circuit |
| FR2839944A1 (en) * | 2002-05-22 | 2003-11-28 | Olivier Bardot | Self-contained underwater breathing device comprises breathing mouth, valves communicating with flexible lung, compressed gas tank with injection system into breathing circuit and exhaled gas filtering cartridges |
| GB2428011A (en) * | 2005-07-05 | 2007-01-17 | Clipper Data Ltd | Cardon dioxide gas scrubber |
| GB2428011B (en) * | 2005-07-05 | 2010-02-10 | Clipper Data Ltd | Cardon dioxide gas scrubber |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2524809B3 (en) | 1985-02-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR2377808A1 (en) | RESPIRATORY GAS HUMIDIFIER | |
| EP3417936A1 (en) | Gas processing device | |
| DK0724462T3 (en) | Gas regeneration method and apparatus in an anesthetic respiratory circuit | |
| FR2469932A1 (en) | COMPRESSED OXYGEN RESPIRATORY APPARATUS | |
| FR2524809A1 (en) | Underwater breathing equipment - has aqualung with heat exchanger to reduce losses | |
| US4503850A (en) | Cold protection suit having a protective breathing device | |
| NO168815C (en) | Fresh air SNORKEL | |
| US3908649A (en) | Personal filter respirator | |
| ES406485A1 (en) | A RECOMBINATION APPARATUS TO COMBINE GASEOUS HYDROGEN AND GASEOUS OXYGEN TO FORM WATER VAPOR. | |
| FR2523852A1 (en) | RESPIRATOR COMPRISING A BREATHING DEVICE FOR BREATHING AIR | |
| US4473071A (en) | Combination heat exchanger breathing aid and muffler | |
| SU620266A1 (en) | Self-sustained air-line respirator | |
| KR100610884B1 (en) | Mask for fire evacuation with flash attached to septic tank | |
| FR2448684A1 (en) | DEVICE FOR REVAPORIZING LIQUEFIED GASES | |
| WO2002064201A1 (en) | An improved portable gas heating apparatus for attachment to a pressurized gas source and method thereof | |
| NL1044465B1 (en) | Scrubber-heating apparatus for diving rebreather | |
| FR2583706A1 (en) | Improvements to artificial-lung breathing apparatuses for deep diving | |
| RU2381044C1 (en) | Respiratory system protection device | |
| SE8102804L (en) | RAGASKYLARE | |
| FR2573852A1 (en) | METHOD AND DEVICE FOR HEATING GAS | |
| SU984481A1 (en) | Apparatus for heating respiration air | |
| WO2012052630A1 (en) | Cartridge comprising a casing containing a strong base capable of fixing carbon dioxide, and related breathing apparatus | |
| SE8502126L (en) | DEVICE FOR SAFETY MASK | |
| RU2194552C2 (en) | Regenerative cartridge for diver's respiratory apparatus | |
| FR2696101A1 (en) | Cartridge containing a chemical for breathing apparatus. |