WO2004087568A1 - Systeme de fourniture d'oxygene a des occupants d'un aeronef et procede de mise en oeuvre d'un tel systeme - Google Patents
Systeme de fourniture d'oxygene a des occupants d'un aeronef et procede de mise en oeuvre d'un tel systeme Download PDFInfo
- Publication number
- WO2004087568A1 WO2004087568A1 PCT/FR2004/050119 FR2004050119W WO2004087568A1 WO 2004087568 A1 WO2004087568 A1 WO 2004087568A1 FR 2004050119 W FR2004050119 W FR 2004050119W WO 2004087568 A1 WO2004087568 A1 WO 2004087568A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pressure
- outlet
- aircraft
- distribution line
- oxygen
- Prior art date
Links
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 239000001301 oxygen Substances 0.000 title claims abstract description 22
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims description 5
- 230000001105 regulatory effect Effects 0.000 claims abstract description 12
- 238000002955 isolation Methods 0.000 claims description 5
- 229910021536 Zeolite Inorganic materials 0.000 claims description 4
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 239000010457 zeolite Substances 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 2
- 239000003570 air Substances 0.000 description 13
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 239000003463 adsorbent Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 101000617550 Dictyostelium discoideum Presenilin-A Proteins 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
- B01D53/0446—Means for feeding or distributing gases
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B7/00—Respiratory apparatus
- A62B7/14—Respiratory apparatus for high-altitude aircraft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D11/00—Passenger or crew accommodation; Flight-deck installations not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D13/00—Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space, or structural parts of the aircraft
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/02—Preparation of oxygen
- C01B13/0229—Purification or separation processes
- C01B13/0248—Physical processing only
- C01B13/0259—Physical processing only by adsorption on solids
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/02—Preparation of oxygen
- C01B13/0229—Purification or separation processes
- C01B13/0248—Physical processing only
- C01B13/0259—Physical processing only by adsorption on solids
- C01B13/0262—Physical processing only by adsorption on solids characterised by the adsorbent
- C01B13/027—Zeolites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2256/00—Main component in the product gas stream after treatment
- B01D2256/12—Oxygen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/10—Single element gases other than halogens
- B01D2257/102—Nitrogen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40003—Methods relating to valve switching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/406—Further details for adsorption processes and devices using more than four beds
- B01D2259/4062—Further details for adsorption processes and devices using more than four beds using six beds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/45—Gas separation or purification devices adapted for specific applications
- B01D2259/4533—Gas separation or purification devices adapted for specific applications for medical purposes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/45—Gas separation or purification devices adapted for specific applications
- B01D2259/4566—Gas separation or purification devices adapted for specific applications for use in transportation means
- B01D2259/4575—Gas separation or purification devices adapted for specific applications for use in transportation means in aeroplanes or space ships
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/047—Pressure swing adsorption
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0043—Impurity removed
- C01B2210/0046—Nitrogen
Definitions
- the present invention relates to systems for supplying oxygen to occupants of an aircraft, of the type comprising a device PS A for separation of air by pressure variation adsorption having an inlet connected to a line for supplying compressed air. and an outlet connected to an oxygen-rich gas mixture distribution line.
- OBOGS Systems of this type, generally designated by the acronym OBOGS, have been used for several decades in military aircraft and are beginning to find a place in large civil aircraft for the supply of oxygen not only to the crew but also passengers.
- the pressure of the supply air at the inlet of the PSA device can vary in a ratio of up to 2.
- This approach has the disadvantage of only stabilizing the pressure upstream of the device while the operating principle of PSA devices intrinsically causes variations in outlet pressure even with a stable inlet pressure, this variable outlet pressure causing variations in outlet flow and therefore variations in enrichment in oxygen content delivered to the occupants.
- the object of the present invention is to provide an improved system which, in a simple, reliable and low-cost arrangement, guarantees constant pressure and flow to users, even in the case of large variations in the air pressure d 'food.
- the distribution line includes a pressure regulator making it possible to regulate the outlet pressure independently of variations in the inlet air pressure.
- the pressure regulator is constituted by a motorized regulating valve forming a three-way valve having an outlet communicating with the atmosphere surrounding and advantageously comprising a position where it forms an isolation valve.
- the PSA device contains at least one pair of adsorbers containing at least one LiX zeolite, advantageously a LiLSX zeolite.
- the present invention also relates to a method of implementing such a system, in which the outlet pressure is regulated to a determined value P s for an inlet pressure P e varying between 1.1 and 1.7 P s .
- FIG. 1 is a schematic view of an oxygen supply system to occupants of an aircraft according to the invention.
- FIG. 2 is a schematic sectional view of a motorized valve regulator used in the system of Figure 1.
- a PSA 1 device for separating gas from the air comprising at least two pairs of adsorbers containing at least one adsorbent for separating the oxygen from the constituents of the ambient air.
- the PSA device 1 is supplied with compressed air by an air supply line 2 and supplies a mixture highly enriched in oxygen in a distribution line 3, the gaseous mixture depleted in oxygen being evacuated towards the outside or used for the inerting of tanks through an evacuation line 4.
- the supply line 2 is supplied with compressed air coming from exits 5 from the compressor stages of turbomachines of the aircraft and the distribution line 3 routes the oxygen produced to crew masks 6 and passenger masks 7.
- Bottles of pressurized gaseous oxygen reserves 8 are provided, under the control of a regulator / regulator device opening downstream in the distribution line 3, to complete or supplement the oxygen supply to the masks 6 and 7.
- the compressed air supply line 2 first passes through a heat exchanger 10 through which a cooling fluid 11, typically ambient cold air, then passes, via isolation valves 12, a water and steam separator 13.
- a pressure regulating device 14 in the distribution line 3, there is interposed, at the outlet of the PSA device 1, a pressure regulating device 14, making it possible to regulate the outlet pressure to a given value, typically slightly lower than the pressure minimum normally available in the air supply line 2.
- This pressure regulator 14 is connected, as well as the isolation valves 12 and the regulator / regulator device 9, to an electronic control unit 15 receiving signals 16 representative flight conditions of the aircraft, signals from pressure sensors 17 and 18 in supply lines 2 and distribution lines 3, respectively, of at least one temperature sensor 19 in the supply line and of a detector of oxygen content 20 in the supply line 3, downstream of the pressure regulating device 14.
- FIG. 2 shows an embodiment of the pressure regulating device 14 articulated around a motorized valve such as that described in document EP-A-0 499 505 (ZapataArnaud), in the name of the applicant.
- This valve essentially comprises a drawer 21, the position of which is determined by an electric motor 22 for positioning the inner end of the drawer 21 provided with progressive cutouts 23 relative to an outlet passage 24 and thus modulating a leakage rate 25 towards the surrounding atmosphere for regulating the flow rate and the pressure in the outlet passage 26 connected to the masks 6 and 7.
- the motor 22 is controlled by electronics 27 receiving signals 28 representative of the actual upstream pressure in the regulator 14 and signals 29 images of a display pressure corresponding to the flight conditions of the aircraft.
- the slide 21 further comprises an end head 30 coming, in the extreme stroke position, completely freeing the leak outlet orifice 24, obscuring a valve seat 31 interposed in the line 3 distribution and thus ensuring an isolation function thereof
- the quantity of adsorbent in the PSA 1 device is dimensioned for the minimum supply pressure, typically 2.5 bars relative and can be optimized for this pressure threshold to provide a mixture with a substantially constant oxygen content greater than 80%, which can exceed 90%.
- the pressure regulating device 14 maintains in line 3, a substantially constant pressure of approximately 2.20 bars.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- Aviation & Aerospace Engineering (AREA)
- Inorganic Chemistry (AREA)
- Business, Economics & Management (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Emergency Management (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Of Gases By Adsorption (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006505859A JP2006524527A (ja) | 2003-03-26 | 2004-03-22 | 航空機の搭乗者に酸素を供給するためのシステムおよびかかるシステムを使用するための方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0303715A FR2852919B1 (fr) | 2003-03-26 | 2003-03-26 | Systeme de fourniture d'oxygene a des occupants d'un aeronef et procede de mise en oeuvre d'un tel systeme |
FR0303715 | 2003-03-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004087568A1 true WO2004087568A1 (fr) | 2004-10-14 |
Family
ID=32947180
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2004/050119 WO2004087568A1 (fr) | 2003-03-26 | 2004-03-22 | Systeme de fourniture d'oxygene a des occupants d'un aeronef et procede de mise en oeuvre d'un tel systeme |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP2006524527A (fr) |
FR (1) | FR2852919B1 (fr) |
WO (1) | WO2004087568A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2414681A (en) * | 2004-06-01 | 2005-12-07 | Draeger Aerospace Gmbh | Air fractionation means for aircraft cabin |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0499505A1 (fr) * | 1991-02-14 | 1992-08-19 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Valve de régulation pneumatique |
EP0667183A1 (fr) * | 1994-02-14 | 1995-08-16 | The Boc Group, Inc. | Zeolites et leur utilisation dans la séparation de mélanges gazeux |
US5460175A (en) * | 1992-11-26 | 1995-10-24 | Normalair-Garrett (Holdings) Limited | Air-oxygen mixture controllers for breathing demand regulators |
US5713984A (en) * | 1995-05-18 | 1998-02-03 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Process for producing pressurized oxygen by adsorption |
EP0997164A2 (fr) * | 1998-10-29 | 2000-05-03 | Normalair-Garrett (Holdings) Limited | Système de génération de gaz |
WO2002012796A2 (fr) * | 2000-08-04 | 2002-02-14 | Davies, Paul, R. | Procede et dispositif permettant d'ameliorer la qualite de l'air dans un batiment ou un espace ferme |
US20020144679A1 (en) * | 2001-04-04 | 2002-10-10 | Jean-Michel Cazenave | Process and installation for the distribution of air enriched in oxygen to passengers of an aircraft |
-
2003
- 2003-03-26 FR FR0303715A patent/FR2852919B1/fr not_active Expired - Lifetime
-
2004
- 2004-03-22 WO PCT/FR2004/050119 patent/WO2004087568A1/fr active Application Filing
- 2004-03-22 JP JP2006505859A patent/JP2006524527A/ja not_active Withdrawn
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0499505A1 (fr) * | 1991-02-14 | 1992-08-19 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Valve de régulation pneumatique |
US5460175A (en) * | 1992-11-26 | 1995-10-24 | Normalair-Garrett (Holdings) Limited | Air-oxygen mixture controllers for breathing demand regulators |
EP0667183A1 (fr) * | 1994-02-14 | 1995-08-16 | The Boc Group, Inc. | Zeolites et leur utilisation dans la séparation de mélanges gazeux |
US5713984A (en) * | 1995-05-18 | 1998-02-03 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Process for producing pressurized oxygen by adsorption |
EP0997164A2 (fr) * | 1998-10-29 | 2000-05-03 | Normalair-Garrett (Holdings) Limited | Système de génération de gaz |
WO2002012796A2 (fr) * | 2000-08-04 | 2002-02-14 | Davies, Paul, R. | Procede et dispositif permettant d'ameliorer la qualite de l'air dans un batiment ou un espace ferme |
US20020144679A1 (en) * | 2001-04-04 | 2002-10-10 | Jean-Michel Cazenave | Process and installation for the distribution of air enriched in oxygen to passengers of an aircraft |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2414681A (en) * | 2004-06-01 | 2005-12-07 | Draeger Aerospace Gmbh | Air fractionation means for aircraft cabin |
GB2414681B (en) * | 2004-06-01 | 2007-08-29 | Draeger Aerospace Gmbh | Means for air fractionization |
US7442238B2 (en) | 2004-06-01 | 2008-10-28 | Dae Systems Gmbh | Means for air fractionization |
Also Published As
Publication number | Publication date |
---|---|
FR2852919B1 (fr) | 2006-01-06 |
FR2852919A1 (fr) | 2004-10-01 |
JP2006524527A (ja) | 2006-11-02 |
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