FR2789913B1 - VENTURI DEVICE FOR MIXING AT LEAST TWO GASEOUS COMPONENTS - Google Patents

VENTURI DEVICE FOR MIXING AT LEAST TWO GASEOUS COMPONENTS

Info

Publication number
FR2789913B1
FR2789913B1 FR0001197A FR0001197A FR2789913B1 FR 2789913 B1 FR2789913 B1 FR 2789913B1 FR 0001197 A FR0001197 A FR 0001197A FR 0001197 A FR0001197 A FR 0001197A FR 2789913 B1 FR2789913 B1 FR 2789913B1
Authority
FR
France
Prior art keywords
mixing
gaseous components
venturi device
venturi
gaseous
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 - Fee Related
Application number
FR0001197A
Other languages
French (fr)
Other versions
FR2789913A1 (en
Inventor
Thomas Rossen
Joachim Schroter
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
Draeger Medizintechnik 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 Draeger Medizintechnik GmbH filed Critical Draeger Medizintechnik GmbH
Publication of FR2789913A1 publication Critical patent/FR2789913A1/en
Application granted granted Critical
Publication of FR2789913B1 publication Critical patent/FR2789913B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/12—Preparation of respiratory gases or vapours by mixing different gases
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/12—Preparation of respiratory gases or vapours by mixing different gases
    • A61M16/122—Preparation of respiratory gases or vapours by mixing different gases with dilution
    • A61M16/125—Diluting primary gas with ambient air
    • A61M16/127—Diluting primary gas with ambient air by Venturi effect, i.e. entrainment mixers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/10—Mixing gases with gases
    • B01F23/19—Mixing systems, i.e. flow charts or diagrams; Arrangements, e.g. comprising controlling means
    • B01F23/191—Mixing systems, i.e. flow charts or diagrams; Arrangements, e.g. comprising controlling means characterised by the construction of the controlling means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B01F25/3121—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof with additional mixing means other than injector mixers, e.g. screens, baffles or rotating elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B01F25/3124—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow
    • B01F25/31242—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow the main flow being injected in the central area of the venturi, creating an aspiration in the circumferential part of the conduit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/314—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
    • B01F25/3142—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit the conduit having a plurality of openings in the axial direction or in the circumferential direction
    • B01F25/31421—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit the conduit having a plurality of openings in the axial direction or in the circumferential direction the conduit being porous
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/32—Injector mixers wherein the additional components are added in a by-pass of the main flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/432—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction with means for dividing the material flow into separate sub-flows and for repositioning and recombining these sub-flows; Cross-mixing, e.g. conducting the outer layer of the material nearer to the axis of the tube or vice-versa
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/432—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction with means for dividing the material flow into separate sub-flows and for repositioning and recombining these sub-flows; Cross-mixing, e.g. conducting the outer layer of the material nearer to the axis of the tube or vice-versa
    • B01F25/4321—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction with means for dividing the material flow into separate sub-flows and for repositioning and recombining these sub-flows; Cross-mixing, e.g. conducting the outer layer of the material nearer to the axis of the tube or vice-versa the subflows consisting of at least two flat layers which are recombined, e.g. using means having restriction or expansion zones
    • B01F25/43211—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction with means for dividing the material flow into separate sub-flows and for repositioning and recombining these sub-flows; Cross-mixing, e.g. conducting the outer layer of the material nearer to the axis of the tube or vice-versa the subflows consisting of at least two flat layers which are recombined, e.g. using means having restriction or expansion zones using a simple by-pass for separating and recombining the flow, e.g. by using branches of different length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/82—Combinations of dissimilar mixers
    • B01F33/821—Combinations of dissimilar mixers with consecutive receptacles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/20—Measuring; Control or regulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/20—Measuring; Control or regulation
    • B01F35/21—Measuring
    • B01F35/211—Measuring of the operational parameters
    • B01F35/2111—Flow rate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/20—Measuring; Control or regulation
    • B01F35/22—Control or regulation
    • B01F35/221—Control or regulation of operational parameters, e.g. level of material in the mixer, temperature or pressure
    • B01F35/2211—Amount of delivered fluid during a period
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/80—Forming a predetermined ratio of the substances to be mixed
    • B01F35/83—Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices
    • B01F35/833—Flow control by valves, e.g. opening intermittently

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dispersion Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Accessories For Mixers (AREA)
FR0001197A 1999-02-20 2000-01-31 VENTURI DEVICE FOR MIXING AT LEAST TWO GASEOUS COMPONENTS Expired - Fee Related FR2789913B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19907362A DE19907362C2 (en) 1999-02-20 1999-02-20 Method for mixing oxygen with air in a ventilator with a venturi nozzle

Publications (2)

Publication Number Publication Date
FR2789913A1 FR2789913A1 (en) 2000-08-25
FR2789913B1 true FR2789913B1 (en) 2005-08-05

Family

ID=7898304

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0001197A Expired - Fee Related FR2789913B1 (en) 1999-02-20 2000-01-31 VENTURI DEVICE FOR MIXING AT LEAST TWO GASEOUS COMPONENTS

Country Status (2)

Country Link
DE (1) DE19907362C2 (en)
FR (1) FR2789913B1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10002000A1 (en) * 2000-01-19 2001-08-09 Bosch Gmbh Robert Atomization arrangement
DE10125863A1 (en) * 2001-05-25 2002-11-28 Air Liquide Gmbh Commercial gas flow production involves taking mixed gas from buffer, and compensating for deviations in flow from surplus gas flow, to maintain constant mixture ratio
DE10160709B4 (en) * 2001-12-11 2015-12-17 Tpi - Tecnimont Planung Und Industrieanlagenbau Gmbh Apparatus for mixing a gaseous and a liquid component in the supercritical region
DE10205845C1 (en) * 2002-02-13 2002-10-31 Draeger Medical Ag Mixing device used in portable breathing apparatus comprises ejectors, central suction channel, valves for regulating feed via propellant gas connections, volume stream sensors, and evaluating and control unit
DE102004030747A1 (en) * 2004-06-25 2006-01-19 Weinmann Geräte für Medizin GmbH + Co. KG Air-oxygen breathing mixtures, for emergency respirators, are produced using supply of pressurized oxygen to suck atmospheric air through venturi nozzle eductor
EP2322266A1 (en) * 2009-11-02 2011-05-18 Leibniz-Institut für Agrartechnik Potsdam-Bornim e.V. (ATB) Device and method for removing hydrogen sulphide from biogas
DE202011102318U1 (en) 2011-06-25 2011-11-10 Dräger Medical GmbH Device for metering oxygen for an anesthetic machine
GB2550130B (en) * 2016-05-09 2021-01-27 James Muggleton Kevin System including passive blender for use with gas from an unconventional source
KR20200056150A (en) * 2018-11-14 2020-05-22 엘지전자 주식회사 Fuel supply module and fuel reforming device for fuel cell using the same
EP3705152B1 (en) 2019-03-07 2022-10-26 Löwenstein Medical Technology S.A. Ventilator with mixer chamber and mixer chamber for a ventilator

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2379551A (en) * 1944-04-27 1945-07-03 Talley Henry Alfred Ernest Apparatus for mixing gases
US2637638A (en) * 1947-06-16 1953-05-05 Cutler Hammer Inc Method of and apparatus for mixing combustible gases
US3689237A (en) * 1970-02-19 1972-09-05 North American Utility Constru Fuel gas pipeline system
JPS55166163A (en) * 1979-06-13 1980-12-25 Citizen Watch Co Ltd Controller for anesthetic gas
US4277254A (en) * 1980-02-15 1981-07-07 Energy Systems, Incorporated Control system and apparatus for producing compatible mixtures of fuel gases
EP0243104B1 (en) * 1986-04-18 1998-07-08 Fluid Technology Limited Fluid injection system
DE4205126A1 (en) * 1992-02-20 1993-08-26 Messer Griesheim Gmbh METHOD FOR PRODUCING A GAS MIXTURE
US5246026A (en) * 1992-05-12 1993-09-21 Proudman Systems, Inc. Fluid measuring, dilution and delivery system
GB9413499D0 (en) * 1994-07-05 1994-08-24 Pneupac Ltd Gas mixing devices for resuscitation/lung ventilation apparatus

Also Published As

Publication number Publication date
DE19907362A1 (en) 2000-08-31
FR2789913A1 (en) 2000-08-25
DE19907362C2 (en) 2003-04-17

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Legal Events

Date Code Title Description
CD Change of name or company name
PLFP Fee payment

Year of fee payment: 17

TP Transmission of property

Owner name: DRAGERWERK AG & CO. KGAA, DE

Effective date: 20160226

PLFP Fee payment

Year of fee payment: 18

PLFP Fee payment

Year of fee payment: 19

ST Notification of lapse

Effective date: 20190905