FR2541390A1 - Nozzle-effect ejector-mixer used particularly as a thermocompressor - Google Patents
Nozzle-effect ejector-mixer used particularly as a thermocompressor Download PDFInfo
- Publication number
- FR2541390A1 FR2541390A1 FR8220693A FR8220693A FR2541390A1 FR 2541390 A1 FR2541390 A1 FR 2541390A1 FR 8220693 A FR8220693 A FR 8220693A FR 8220693 A FR8220693 A FR 8220693A FR 2541390 A1 FR2541390 A1 FR 2541390A1
- Authority
- FR
- France
- Prior art keywords
- ejector according
- wall
- ejector
- mixer
- duct
- 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
- 238000001704 evaporation Methods 0.000 claims abstract description 5
- 239000007864 aqueous solution Substances 0.000 claims abstract description 3
- 239000007900 aqueous suspension Substances 0.000 claims abstract description 3
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 3
- 230000008020 evaporation Effects 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 3
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 238000009792 diffusion process Methods 0.000 claims description 2
- 108700028369 Alleles Proteins 0.000 claims 1
- 230000006698 induction Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 235000013365 dairy product Nutrition 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000003348 petrochemical agent Substances 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
- F04F5/46—Arrangements of nozzles
-
- 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
- B01F25/3123—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof with two or more Venturi elements
- B01F25/31232—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof with two or more Venturi elements used simultaneously
-
- 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
- B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
- B01F25/3125—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characteristics of the Venturi parts
- B01F25/31253—Discharge
- B01F25/312533—Constructional characteristics of the diverging discharge conduit or barrel, e.g. with zones of changing conicity
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
Description
La présente invention concerne un éjecteurmélangeur à effet de trompe et plus particulièrement un thermocompresseur dans lequel on réalise un échange d'énergie entre un faible débit de vapeur motrice (ou autres gaz) à haute pression et-un débit important de vapeur molle ou saturante (ou autre gaz) qui se trouve ainsi régénérée. The present invention relates to a trumpet ejector-mixer and more particularly a thermocompressor in which an energy exchange is carried out between a low flow of motive vapor (or other gases) at high pressure and a large flow of soft or saturated vapor ( or other gas) which is thus regenerated.
L'invention trouve en particulier une applican tion pour l'évaporation ou la concentration d'une solution et/ou suspension aqueuse dans le cadre de processus industriels utilisés par exemple par l'industrie sucriere, les laiteries, les distilleries ou brasseries, les usines de patte à papier, la chimie et la pétrochimie, le dessalement de l'eau de mer, etc. The invention finds in particular an application for the evaporation or the concentration of an aqueous solution and / or suspension within the framework of industrial processes used for example by the sugar industry, dairies, distilleries or breweries, factories paper, chemicals and petrochemicals, seawater desalination, etc.
Les dispositifs connues de ce genre sont souvent bruyants et sensibles aux contraintes thermiques, ce qui nuit à leurs performances, à leur durée de vie et à leur sécurité d'emploi. Known devices of this type are often noisy and sensitive to thermal stresses, which affects their performance, their service life and their safety in use.
La présente invention permet deobtenir des éjecteurs de haute performance, robustes et d'entretien aisé, ne presentant pas les inconvénients mentionnés ci-dessus. The present invention makes it possible to obtain high-performance, robust and easy-to-maintain ejectors which do not have the drawbacks mentioned above.
Un éjecteur selon l'invention est du type compor- tant au moins un ajutage injecteur débouchssnt sensiblement au: droit du col d'un conduit melangeur-diffuseur a profil convergentdivergent ; selon l'invention ce conduit présente dans la zone de mélange une paroi sensiblement cylindrique de forte épaisseur raccordée à l'extrémité amont convergente et à l'extrémité aval divergente de ce conduit réalises en paroi mince. An ejector according to the invention is of the type comprising at least one injector nozzle opening substantially at: right of the neck of a mixer-diffuser conduit with a convergent-divergent profile; according to the invention, this duct has in the mixing zone a substantially cylindrical wall of great thickness connected to the converging upstream end and to the diverging downstream end of this duct made in thin wall.
Avantageusement, le rapport d'épaisseur entre la paroi cylindrique épaisse du conduit et la paroi mince de ses extrémités estau moins de 5 à 10. Advantageously, the thickness ratio between the thick cylindrical wall of the conduit and the thin wall of its ends is at least 5 to 10.
La paroi de forte épaisseur peut être réalisée à partir d'une ébauche en forme de manchon sans soudure alésée et usinée avec précision tandis que les parois minces peuvent être réalisées à l'aide de tôles minces roulées et soudées. The thick wall can be made from a blank in the shape of a seamless sleeve bored and precision machined while the thin walls can be made using thin sheets rolled and welded.
Avantageusement, la paroi épaisse présente-un effilement sur ses bords, les parois minces étant soudées sur les effilements correspondants.Advantageously, the thick wall has a taper at its edges, the thin walls being welded to the corresponding taper.
Le canal intérieur défini par la paroi épaisse comporte un tronçon cylindrique à section circulaire sensiblement constante. The inner channel defined by the thick wall has a cylindrical section with a substantially constant circular section.
De préférence, le conduit mélangeur-diffuseur est inséré à l'intérieur d'une enveloppe tubulaire mince ou manchon de section.sensiblement constante de manière que la zoné de mélange-diffusion soit entourée par une double paroi. Preferably, the mixer-diffuser duct is inserted inside a thin tubular envelope or sleeve of substantially constant cross-section so that the mixing-diffusion zone is surrounded by a double wall.
L'enceinte annulaire ainsi confinée peut être, au moins en partie remplie d'un matériau isolant thermique et/ou phonique.The annular enclosure thus confined can be, at least partially filled with a thermal and / or sound insulating material.
La paroi de forte epaisseur du conduit mélangeurdiffuseur peut etre fixée à l'enveloppe tubulaire ou manchon de façon amovible, l'extrémité aval divergente s'étendant jusqu'au voisinage de la paroi interne du manchon et étant guidée le long de celle-ci de manière a permettre des déplacements axiaux de la dite extrémité. The thick wall of the mixer-diffuser duct can be fixed to the tubular casing or sleeve in a removable manner, the divergent downstream end extending as far as the vicinity of the internal wall of the sleeve and being guided along the latter. so as to allow axial displacements of said end.
Avantageusement, l'éjecteur comporte une pluralité de tubes injecteurs d'axes sensiblement parallèles. L'extrémité des ajutages inducteurs faisant saillie d'un corps en forme d'ogive est disposée légèrement en retrait de l'entrée de la zone de mélange à section sensiblement constante de manière à optimiser les performances du dispositifO
La description qui va suivre en regard des dessins annexés fera bien comprendre comment l'invention peut être réalisée.Advantageously, the ejector comprises a plurality of injector tubes with substantially parallel axes. The end of the inductor nozzles projecting from a warp-shaped body is arranged slightly set back from the entry to the mixing zone with a substantially constant section so as to optimize the performance of the device.
The description which follows with reference to the appended drawings will make it clear how the invention can be implemented.
La figure 1 est une vue en coupe longitudinale d'un éjecteur-mélanyeur selon I' inventi9n. Figure 1 is a longitudinal sectional view of an ejector-mixer according to I 'inventi9n.
La figure 2 est une vue en.coupe prise selon la ligne II - II de la figure I. Figure 2 is a sectional view taken along line II - II of Figure I.
La figure 3 est une vue schématique illustrant l'application d'un thermocompresseur à une installation d'évaporation de produit. Figure 3 is a schematic view illustrating the application of a thermocompressor to a product evaporation installation.
En regard des figures 1 et 2 on peut voir un corps creux 1 présentant un orifice d'entrée 2 et un orifice de sortie 3 d'axes sensiblement perpendiculaires. Ces orifices sont munis de brides 2a, 3a permettant leur raccordement à d'autres canalisations. With reference to Figures 1 and 2 we can see a hollow body 1 having an inlet orifice 2 and an outlet orifice 3 of substantially perpendicular axes. These orifices are provided with flanges 2a, 3a allowing their connection to other pipes.
A l'intérieur du corps 1 sont disposés plusieurs tubes injecteurs 4 (sept dans l'exemple représenté) , les ajustages injecteurs sont sensiblement parallèles et orientés selon l'axe A de l'orifice 3. Inside the body 1 are arranged several injector tubes 4 (seven in the example shown), the injector adjustments are substantially parallel and oriented along the axis A of the orifice 3.
Les tubes injecteurs 4 sont portés par un organe 5 en forme d'ogive lui-même vissé au corps 1. Cet organe portetube 5 présente une cavité 6 dans laquelle débouchent les tubes 4 et permettant de les alimenter en vapeur vive. The injector tubes 4 are carried by a member 5 in the form of a warhead itself screwed to the body 1. This tube holder member 5 has a cavity 6 into which the tubes 4 open and allowing them to be supplied with live steam.
Cette cavite 6 est elle meme alimentée par un ajutage 7 muni d'une crépine 8 assurant le filtrage de la vapeur vive.d'alimentation.This cavity 6 is itself supplied by a nozzle 7 provided with a strainer 8 ensuring the filtering of the live steam.
Les tubes injecteurs 4 sont associés à un-conduit mélangeur-diffuseur 9 à profil convergent-divergent disposé selon l'axe A. Ce conduit présente dans la zone de mélange une paroi 10 de forte épaisseur alors que la partie convergente 11 et l'extrémité divergente 12 sont réalisées en paroi mince. The injector tubes 4 are associated with a mixer-diffuser duct 9 with a convergent-divergent profile arranged along the axis A. This duct has a wall 10 of very thick wall in the mixing zone while the convergent part 11 and the end divergent 12 are produced in thin wall.
La paroi de forte épaisseur 10 est réalisée à partir d'une ébauche en forme de manchon sans soudure alésée et usinée avec précision pour définir successivement une petite portion convergente C, une portion M cylindrique de section circulaire constante, une petite portion divergente D. The very thick wall 10 is produced from a blank in the form of a seamless sleeve bored and precisely machined to successively define a small converging portion C, a cylindrical portion M of constant circular section, a small diverging portion D.
La paroi lO-présente des extrémités effilés lOa lOb surlesquelles peuvent être soudées respectivement les parois minces 11 et 12. Celles-ci peuvent être réalisées à partir de tales minces roulées et soudées. The wall lO-has tapered ends lOa lOb on which can be welded respectively the thin walls 11 and 12. These can be made from thin sheets rolled and welded.
On notera que seule la partie 10 du conduit 9 qui subit des contraintes mécaniques et thermiques importantes est réalisée en paroi épaisse usinée avec une grande précision, le reste du conduit étant réalisé de manière simple et économique en tôle mince. Les déformations susceptibles d'entre engendrées par ces contraintes sont donc évitées, ee qui permet de maintenir de bonne performances à l'appareil et d'en garantir la sécurite d'emploi. It will be noted that only the part 10 of the conduit 9 which undergoes significant mechanical and thermal stresses is produced in thick wall machined with great precision, the rest of the conduit being produced in a simple and economical manner in thin sheet metal. The deformations likely to be caused by these constraints are therefore avoided, which makes it possible to maintain good performance of the device and to guarantee its safety in use.
D'autre part, l'épaisseur de ia paroi 10 dans la zone de mélange procure un effet insonorisant très efficace et autorise un mélange sensiblement adiabatique de la vapeur vive avec la vapeur entraînée. On the other hand, the thickness of the wall 10 in the mixing zone provides a very effective sound-absorbing effect and allows a substantially adiabatic mixing of the live steam with the entrained steam.
Le rapport d'épaisseur entre la paroi épaisse et la paroi mince sera de préférence au moins de 5 à 10. Le conduit 9 est inséré à l'intérieur d'une enveloppe tubulaire mince ou manchon 13 de section cylindrique sensiblement constante, orienté selon l'axe À, et se raccordant à 1'orifice 3 du corps 1par une bride 13a. La partie 10 épaisse du conduit 9 est fixée au manchon 13 par l'intermédiaire d'une collerette 14-' serrée entre les brides 3a et 13a. The thickness ratio between the thick wall and the thin wall will preferably be at least 5 to 10. The conduit 9 is inserted inside a thin tubular casing or sleeve 13 of substantially constant cylindrical section, oriented along the line axis A, and connecting to the orifice 3 of the body 1 by a flange 13a. The thick part 10 of the conduit 9 is fixed to the sleeve 13 by means of a flange 14- 'clamped between the flanges 3a and 13a.
La partie divergente 12 du conduit 9 s'étend jusqu'au voisinage de la paroi interne du manchon 13 et son extrémité libre est munie de pattes 16 de guidage de manière à autoriser des débattements axiaux. Le conduit 9 est ainsi facilement démontable. The divergent part 12 of the conduit 9 extends to the vicinity of the internal wall of the sleeve 13 and its free end is provided with tabs 16 for guiding so as to allow axial movements. The conduit 9 is thus easily removable.
La double paroi constituée par le conduit 9 et l'enveloppe tubulaire ou manchon 13 confine une enceinte 15 qui contribue à l'insonorisation. Elle peut être remplie en partie ou totalement d'un matériau isolant tel que laine de verre, laine de roche, etc. The double wall constituted by the conduit 9 and the tubular envelope or sleeve 13 confines an enclosure 15 which contributes to soundproofing. It can be partially or completely filled with an insulating material such as glass wool, rock wool, etc.
Comme illustré sur la figure 1, l'extrémité des ajutages inducteurs 4 est disposée légèrement en retrait de l'entrée de la portion M constituant la zone de mélange. As illustrated in FIG. 1, the end of the inductor nozzles 4 is arranged slightly set back from the inlet of the portion M constituting the mixing zone.
En fonctionn'ement, la vapeur vive est envoyée aux injecteurs par l'ajutage 7,- la vapeur entraînée arrivant par ltorifice 2 et la vapeur refoulée sortant par l'orifice 17 du manchon 13. In operation, the live steam is sent to the injectors by the nozzle 7, - the entrained steam arriving through the orifice 2 and the discharged steam leaving through the orifice 17 of the sleeve 13.
Sur la figure 3, on a représenté très schématiquement une installation d'évaporation 20 comportant un échangeur 21. La vapeur molle ou saturante sortant de l'installation en 22 est régénérée par un thermocompresseur 23. La vapeur vive est envoyée en 24 et la vapeur molle entraînée en25 pour fournir une vapeur régénérée refoulée en 26 vers L'échångeur 21. In Figure 3, there is shown very schematically an evaporation installation 20 comprising an exchanger 21. The soft or saturated steam leaving the installation at 22 is regenerated by a thermocompressor 23. The live steam is sent at 24 and the steam soft entrained in 25 to provide regenerated steam discharged in 26 to the echångeur 21.
Claims (12)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8220693A FR2541390B1 (en) | 1982-12-10 | 1982-12-10 | TRUMP-EFFECT EJECTOR-MIXER, ESPECIALLY USED AS A THERMOCOMPRESSOR |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8220693A FR2541390B1 (en) | 1982-12-10 | 1982-12-10 | TRUMP-EFFECT EJECTOR-MIXER, ESPECIALLY USED AS A THERMOCOMPRESSOR |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2541390A1 true FR2541390A1 (en) | 1984-08-24 |
| FR2541390B1 FR2541390B1 (en) | 1987-06-26 |
Family
ID=9279948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8220693A Expired FR2541390B1 (en) | 1982-12-10 | 1982-12-10 | TRUMP-EFFECT EJECTOR-MIXER, ESPECIALLY USED AS A THERMOCOMPRESSOR |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2541390B1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2580191A1 (en) * | 1985-04-11 | 1986-10-17 | Bayen Jean | Method for drying a moist container filled with gas under reduced pressure |
| EP0684069A1 (en) * | 1994-05-26 | 1995-11-29 | Linde Aktiengesellschaft | Injector and method for suction or mixing of fluids |
| FR2730987A1 (en) * | 1995-02-28 | 1996-08-30 | Chemoxal Sa | OXYGENATED WATER PRODUCTION FACILITY ON THE SITE OF A STATIONERY |
| EP1998053A3 (en) * | 2007-05-31 | 2012-03-21 | Valeo Klimasysteme GmbH | Ejector pump |
| GB2490022B (en) * | 2011-04-11 | 2016-06-22 | Dc Norris & Company Ltd | Method and apparatus, particularly but not exclusively for processing flowable food products |
| EP2668998A4 (en) * | 2011-01-25 | 2018-01-10 | Ito Koki Co., Ltd. | Mixed gas production device |
| CN112827690A (en) * | 2020-12-31 | 2021-05-25 | 广东省科学院新材料研究所 | Nozzle device and spraying equipment |
| WO2022243622A1 (en) | 2021-05-18 | 2022-11-24 | Safran Helicopter Engines | Device for guiding a main air flow for an aircraft turbine engine |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR576007A (en) * | 1924-01-19 | 1924-08-09 | Penberthy Injector Co | Device for the automatic ejection of water from a sump |
| US1543834A (en) * | 1922-03-02 | 1925-06-30 | Elliott Co | Ejector |
| FR727299A (en) * | 1931-12-01 | 1932-06-15 | water ejector | |
| US2284013A (en) * | 1940-06-07 | 1942-05-26 | William S Pardoe | Venturi tube or meter |
| DE1101825B (en) * | 1959-10-17 | 1961-03-09 | Otto Steinle | Staugeraet for measuring the amount of wastewater flowing into a wastewater system |
| FR1391495A (en) * | 1964-04-28 | 1965-03-05 | Pfaudler Permutit Inc | Advanced venturi tube |
| US3733901A (en) * | 1972-08-09 | 1973-05-22 | Gen Signal Corp | Flow metering device of the pressure differential producing type |
| US4014961A (en) * | 1973-04-24 | 1977-03-29 | Vitaly Fedorovich Popov | Ejector mixer for gases and/or liquids |
| FR2348110A1 (en) * | 1976-04-13 | 1977-11-10 | Baum Gunter | DEVICE FOR EXHAUST AIR OUT OF PACKAGING BAGS |
| US4174734A (en) * | 1978-03-13 | 1979-11-20 | First Wisconsin National Bank Of Wisconsin | Fluid flow metering tube with minimum pressure energy loss |
-
1982
- 1982-12-10 FR FR8220693A patent/FR2541390B1/en not_active Expired
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1543834A (en) * | 1922-03-02 | 1925-06-30 | Elliott Co | Ejector |
| FR576007A (en) * | 1924-01-19 | 1924-08-09 | Penberthy Injector Co | Device for the automatic ejection of water from a sump |
| FR727299A (en) * | 1931-12-01 | 1932-06-15 | water ejector | |
| US2284013A (en) * | 1940-06-07 | 1942-05-26 | William S Pardoe | Venturi tube or meter |
| DE1101825B (en) * | 1959-10-17 | 1961-03-09 | Otto Steinle | Staugeraet for measuring the amount of wastewater flowing into a wastewater system |
| FR1391495A (en) * | 1964-04-28 | 1965-03-05 | Pfaudler Permutit Inc | Advanced venturi tube |
| US3733901A (en) * | 1972-08-09 | 1973-05-22 | Gen Signal Corp | Flow metering device of the pressure differential producing type |
| US4014961A (en) * | 1973-04-24 | 1977-03-29 | Vitaly Fedorovich Popov | Ejector mixer for gases and/or liquids |
| FR2348110A1 (en) * | 1976-04-13 | 1977-11-10 | Baum Gunter | DEVICE FOR EXHAUST AIR OUT OF PACKAGING BAGS |
| US4174734A (en) * | 1978-03-13 | 1979-11-20 | First Wisconsin National Bank Of Wisconsin | Fluid flow metering tube with minimum pressure energy loss |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2580191A1 (en) * | 1985-04-11 | 1986-10-17 | Bayen Jean | Method for drying a moist container filled with gas under reduced pressure |
| EP0684069A1 (en) * | 1994-05-26 | 1995-11-29 | Linde Aktiengesellschaft | Injector and method for suction or mixing of fluids |
| FR2730987A1 (en) * | 1995-02-28 | 1996-08-30 | Chemoxal Sa | OXYGENATED WATER PRODUCTION FACILITY ON THE SITE OF A STATIONERY |
| WO1996026895A1 (en) * | 1995-02-28 | 1996-09-06 | Chemoxal S.A. | Plant for producing hydrogen peroxide in situ in a paper mill |
| CN1080699C (en) * | 1995-02-28 | 2002-03-13 | 凯默夏尔公司 | Plant for producing hydrogen peroxide in situ in a paper mill |
| EP1998053A3 (en) * | 2007-05-31 | 2012-03-21 | Valeo Klimasysteme GmbH | Ejector pump |
| EP2668998A4 (en) * | 2011-01-25 | 2018-01-10 | Ito Koki Co., Ltd. | Mixed gas production device |
| GB2490022B (en) * | 2011-04-11 | 2016-06-22 | Dc Norris & Company Ltd | Method and apparatus, particularly but not exclusively for processing flowable food products |
| CN112827690A (en) * | 2020-12-31 | 2021-05-25 | 广东省科学院新材料研究所 | Nozzle device and spraying equipment |
| WO2022243622A1 (en) | 2021-05-18 | 2022-11-24 | Safran Helicopter Engines | Device for guiding a main air flow for an aircraft turbine engine |
| FR3123092A1 (en) * | 2021-05-18 | 2022-11-25 | Safran Helicopter Engines | MAIN AIR FLOW DRIVE DEVICE FOR AN AIRCRAFT TURBOMACHINE |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2541390B1 (en) | 1987-06-26 |
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