EP2574408B1 - Procédé et dispositif destinés à la sortie d'un flux de liquide de refroidissement - Google Patents

Procédé et dispositif destinés à la sortie d'un flux de liquide de refroidissement Download PDF

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Publication number
EP2574408B1
EP2574408B1 EP11183587.2A EP11183587A EP2574408B1 EP 2574408 B1 EP2574408 B1 EP 2574408B1 EP 11183587 A EP11183587 A EP 11183587A EP 2574408 B1 EP2574408 B1 EP 2574408B1
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EP
European Patent Office
Prior art keywords
nozzle
cooling medium
laval nozzle
carrier gas
coolant
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.)
Active
Application number
EP11183587.2A
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German (de)
English (en)
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EP2574408A1 (fr
Inventor
Cerkez Kaya
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.)
Air Liquide Deutschland GmbH
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide Deutschland GmbH
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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 Air Liquide Deutschland GmbH, Air Liquide SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide Deutschland GmbH
Priority to ES11183587.2T priority Critical patent/ES2670824T3/es
Priority to EP11183587.2A priority patent/EP2574408B1/fr
Priority to DK11183587.2T priority patent/DK2574408T3/en
Priority to PL11183587T priority patent/PL2574408T3/pl
Publication of EP2574408A1 publication Critical patent/EP2574408A1/fr
Application granted granted Critical
Publication of EP2574408B1 publication Critical patent/EP2574408B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
    • B05D3/0466—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being a non-reacting gas
    • B05D3/048—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being a non-reacting gas for cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/16—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed
    • B05B7/1606—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed the spraying of the material involving the use of an atomising fluid, e.g. air
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/02—Coating starting from inorganic powder by application of pressure only
    • C23C24/04—Impact or kinetic deposition of particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/16—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed
    • B05B7/20—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed by flame or combustion
    • B05B7/201—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed by flame or combustion downstream of the nozzle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/16—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed
    • B05B7/22—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed electrically, magnetically or electromagnetically, e.g. by arc
    • B05B7/222—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed electrically, magnetically or electromagnetically, e.g. by arc using an arc
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
    • B05D1/08—Flame spraying

Definitions

  • the subject of the present invention is a method and a device for discharging a cooling medium flow.
  • This cooling medium flow is used to achieve effective cooling of the components to be coated and the spray materials during thermal coating.
  • Components are often thermally coated to alter the surface properties of the component with respect to corrosion, wear, or temperature resistance. Also, the change of adhesive properties or the static and / or sliding friction is often in the foreground of the coating. Other functional surfaces can also be created in this way.
  • thermal coating two materials are combined with each other, which differ regularly in terms of at least their physical properties. For example, layers of plastics, metals, alloys, carbides, oxides, ceramics and mixtures of these substances are applied by thermal coating.
  • the components to be coated are coated in one or more passes using flame spraying, high speed flame spraying, arc spraying and plasma spraying to apply a spraying material.
  • the coating or the spray material is formed from a material which is melted or fused and applied to the component surface. In this case, the component surface should not be melted regularly.
  • the bonding of the layer to the component surface takes place primarily by mechanical clamping, alternatively or additionally by diffusion.
  • cooling takes place by introducing carbon dioxide into a stream of compressed air or else by atomizing liquid carbon dioxide to form carbon dioxide snow. This cooling medium is then applied to the component surface.
  • a method for cooling with a cryogenic liquid which is brought into contact with a throttling gas or with another cryogenic liquid is described by means of a nozzle.
  • the cooling efficiency essentially depends on how much cooling medium and in which composition this impinges on the component surface and, in particular, how much carbon dioxide snow impinges on the component surface, sublimes on the component surface and how far there is heat exchange between component and carbon dioxide or cooling medium. This is often unsatisfactory and, in particular, when the components move quickly and / or have a rotating thermal mass, as is the case, for example, when coating rolls, disks and balls, it is difficult from the prior art to provide an effective and to achieve sufficient cooling of the component surface.
  • the present invention has the object to provide a method and an apparatus for discharging a cooling medium, in which the known from the prior art disadvantages are at least partially overcome and in particular to provide a method and an apparatus for discharging a cooling medium, in which the cooling medium flow is adjustable with respect to flow velocity and composition.
  • a cooling medium flow is introduced through a cooling medium nozzle into a carrier gas flow, wherein the cooling medium is liquid and / or gaseous.
  • the method is characterized in that the carrier gas stream is passed through a Laval nozzle, wherein the Laval nozzle has a longitudinal axis and the cooling medium flow is input so that the exit of the cooling medium flow takes place in the carrier gas flow inside or downstream of the Laval nozzle.
  • a Laval nozzle is understood to be a nozzle in which the cross-section of the nozzle initially narrows in the flow direction and then widens again until the gas emerges.
  • a carrier gas stream is understood as meaning a stream of a carrier gas.
  • the carrier gas is in gaseous form.
  • a cooling medium flow is understood as meaning a flow of a cooling medium.
  • the cooling medium is liquid and / or gaseous. It can change its state of aggregation upon exiting the cooling medium nozzle, so that a liquid cooling medium after leaving the cooling medium nozzle is at least partially gaseous and / or solid.
  • the cooling medium nozzle can be a basically arbitrary nozzle, in particular it can also be the exit of a pipe.
  • the Laval nozzle initially accelerates the carrier gas flow. At the same time takes place when the exit of the cooling medium flow in the carrier gas flow within the Laval nozzle, in the Laval nozzle a mixing of carrier gas flow and cooling medium flow. There is a distribution of the cooling medium in the carrier gas stream. If the cooling medium nozzle is positioned so that the outlet of the cooling medium flow takes place downstream of the Laval nozzle, the mixing of cooling medium and carrier gas takes place in the carrier gas flow generated by the Laval nozzle. Due to the acceleration experienced by the carrier gas in the Laval nozzle, a basically turbulent or quasi-turbulent flow is generated, into which the cooling medium is introduced. So it comes to a good mixing of cooling medium and carrier gas.
  • the cooling medium nozzle is displaceable in the direction of the longitudinal axis of the Laval nozzle relative to the Laval nozzle.
  • cooling medium nozzle is designed replaceable.
  • cooling medium nozzles of different flow-through cross-sections can be specified interchangeably for different areas of application.
  • the composition in particular with regard to the distribution of aggregate states of the cooling medium, ie which proportion of the cooling medium in liquid form, which proportion in solid form and which proportion is present as gas, the spatial distribution of the cooling medium in the carrier gas stream and / or the particle size, in particular the droplet or grain size of the liquid or solid phase, predetermined or adjusted.
  • the cooling medium Especially when carbon dioxide is used as the cooling medium, an adjustment of the size distribution of the carbon dioxide snow on the one hand and the spatial distribution of the carbon dioxide snow particles in the carrier gas flow can be achieved.
  • a predominantly liquid cooling medium such as, for example, liquid nitrogen or liquid argon
  • the droplet size distribution of the nitrogen or argon in the carrier gas stream can be adjusted.
  • the particle size and the distribution of the particles in the carrier gas stream to the nature of the component to be coated, in particular with regard to the reduction of thermal expansion and shrinkage, and the spray materials are adjusted, so as to poor film formation or adhesion due to thermally induced shear stresses to reduce or avoid.
  • the cooling medium is in the liquid state of matter when flowing through the cooling medium.
  • the cooling medium nozzle when supplied as the cooling medium carbon dioxide in liquid form, it may after exiting the cooling medium for the at least partial formation of cooling medium in solid state, for example as carbon dioxide snow and the partial evaporation of carbon dioxide.
  • cooling medium in solid state for example as carbon dioxide snow and the partial evaporation of carbon dioxide.
  • the use of carbon dioxide has proved to be advantageous as a cooling medium, since the formation of carbon dioxide snow good distribution of the cooling medium on the component surface and thus effective cooling can be done and used the sublimation cooling for the cooling of the component surface can be.
  • the enthalpy of vaporization can advantageously be used for further cooling of the component surface.
  • Nitrogen and argon are inert gases that can be used to suppress reactions with the component surface during coating and cooling, in particular to suppress oxidation reactions.
  • an identical gas as carrier gas and cooling medium, in which case preferably the gas is used at least partially in another state of aggregation as the cooling medium.
  • air as a carrier gas has proven to be particularly inexpensive.
  • cooling medium nozzle In particular, in the case of air as a carrier gas and generally when the carrier gas has a certain moisture, ice formation may occur at the cooling medium nozzle. This can preferably be counteracted, in which the cooling medium is provided with a thermal insulation, for example, in which a coating of a plastic, in particular of polytetrafluoroethylene, is formed.
  • the carrier gas stream is passed through a porous body before the cooling medium flow is added.
  • a sintered material such as a sintered metal or a sintered ceramic
  • the guidance of the carrier gas flow through a porous body results in flow uniformization downstream of the porous body.
  • the porous body can be advantageously used for mechanically holding and / or centering the cooling medium nozzle in the Laval nozzle.
  • the cooling medium nozzle is centered relative to the Laval nozzle educated.
  • the Laval nozzle has an axis of symmetry in the form of the longitudinal axis, that is rotationally symmetrical about the longitudinal axis, it is advantageous to center the cooling medium relative to the Laval nozzle, so this form on the longitudinal axis of the Laval nozzle. In this way it can be achieved that the cooling medium flow is added in the region of the highest flow velocity of the carrier gas flow, which leads to a particularly good distribution of the cooling medium in the carrier gas.
  • the cooling medium flow is input in the direction of the longitudinal axis of the Laval nozzle.
  • the addition of the cooling medium in the direction of the longitudinal axis leads to a particularly uniform distribution of the cooling medium in the carrier gas.
  • This can be achieved, for example, by supplying the cooling medium nozzle with cooling medium through a cooling medium feed line formed in the direction of the longitudinal axis of the nozzle, but the cooling medium nozzle has an outlet opening which effects a cooling medium flow with a direction that differs from the longitudinal axis.
  • the cooling medium nozzle is designed such that an outlet opening of the cooling medium nozzle lies within the Laval nozzle or the outlet opening of the cooling medium nozzle is located behind the outlet side of the Laval nozzle.
  • the output side is the Laval nozzle limiting plane formed opposite to the input side.
  • the carrier gas connection is understood to be a connection via which a carrier gas can flow into the Laval nozzle.
  • the exit side of the Laval nozzle lies between the discharge port of the cooling medium nozzle and the input side of the Laval nozzle.
  • the device according to the invention can preferably be used for the use of the method according to the invention.
  • the cooling medium nozzle is displaceable along a longitudinal axis of the Laval nozzle.
  • a cooling medium nozzle is designed to be displaceable within a Laval nozzle allows adjustment of the properties of the cooling medium flow during discharge from the device, in particular with regard to the particle size distribution and the distribution of the particles in the carrier gas flow.
  • the cooling medium is formed coaxially with the Laval nozzle.
  • cooling medium nozzle By coaxial is meant that one axis of the cooling medium nozzle is identical to a corresponding axis of the Laval nozzle.
  • the cooling medium nozzle is designed so that it has an outlet opening has, which faces in the direction of the output side and is formed symmetrically about the longitudinal axis of the Laval nozzle.
  • the displaceability in the direction of the longitudinal axis can be achieved in a structurally simple manner.
  • an outlet opening symmetrical to the longitudinal ash a substantially symmetrical spatial distribution of cooling medium in the carrier gas flow can be achieved.
  • the cooling medium nozzle comprises a tube, preferably with an inner diameter of less than 1.5 mm, preferably less than 1.0 mm, particularly preferably less than 0.5 mm.
  • a capillary is used as a cooling medium or for supplying the cooling medium to the cooling medium, which makes it possible to supply the cooling medium in sufficiently small economically meaningful volume flows.
  • the inner diameter of the capillary or the tube can be adjusted depending on the necessary cooling and other conditions such as the applied cooling medium pressure in order to achieve the most efficient cooling possible.
  • the present invention allows particle or Truchsch relienveranderen that are adjustable with displaceablemémediumdüse, for example, from particle or droplet diameters of 20 to 40 microns [microns] to 0.2 to 0.3 mm [millimeters].
  • a constricted tube Under a constricted tube is understood a tube whose flow-through cross-section is reduced at least in a partial area. In the case of a tube as cooling medium nozzle, this has a substantially constant cross-section through which it can flow. Under a pipe is also understood advantageously a capillary with an inner diameter of 1.5 mm and less.
  • a Laval nozzle is preferably used when it is necessary due to the circumstances, to increase the Auström york the cooling medium flow.
  • a tube, in particular a capillary, as a nozzle is preferably used when only a fairly short cooling medium nozzle is necessary, that is, the cooling medium flow is to be entered in the forward direction of the Laval nozzle.
  • the permeable inner diameter is preferably reduced by more than 30%, for example, from an inner diameter of about 0.8 mm to 0.4 mm or 0.5 mm.
  • the cooling medium nozzle is designed as a Laval nozzle, then the flow-through diameter from upstream of this Laval nozzle to the central part of the Laval nozzle can be reduced by at least 50%, for example from 0.8 mm to 0.3 mm. Even with a constricted tube as the cooling medium nozzle, the reduced flow-through cross-section leads to an acceleration of the cooling medium flow.
  • the preparation of a Laval nozzle or a constricted tube as a cooling medium nozzle is preferably carried out by heating a Metallkapillare and pulling independently of the present invention.
  • a porous body is formed between the carrier gas connection and the Laval nozzle.
  • This porous body is flowed through during operation of the carrier gas. It is preferably a sintered body, in particular a sintered metal body or a sintered ceramic body.
  • the carrier gas flow is made uniform, so that when flowing the carrier gas into the Laval nozzle defined conditions are present, so that smaller pressure fluctuations and the like in the carrier gas supply are compensated before the porous body.
  • the cooling medium nozzle is centered by a porous body relative to the Laval nozzle.
  • an embodiment is selected in which the cooling medium nozzle is still displaceable.
  • the porous body can also be used to streamline the flow of carrier gas.
  • Fig. 1 schematically shows a first embodiment of an inventive device 1 for discharging a cooling medium flow.
  • the device 1 comprises a nozzle body 2 with a Laval nozzle 3.
  • the Laval nozzle 3 comprises a first region 4, in which the flow-through cross-section decreases, a second region 5, in which the flow-through cross-section is constant, and a third region 6 in which the flow-through cross-section increases.
  • the Laval nozzle 3 is formed rotationally symmetrical to a longitudinal axis 7.
  • the Laval nozzle 3 has an input side 8 and an output side 9. In operation, the Laval nozzle 3 is flowed through from the input side 8 to the output side 9.
  • the device 1 Connected to the input side 8 of the Laval nozzle 3 is a carrier gas connection 10, via which the device 1 can be supplied with a carrier gas during operation. Furthermore, the device 1 comprises a cooling medium nozzle 11 with an outlet opening 12 for introducing cooling medium into the carrier gas flow.
  • the cooling medium nozzle 12 is connected to a cooling medium supply line 13.
  • the cooling medium nozzle 11 is supplied via the cooling medium supply line 13 with cooling medium, which is entered through the outlet opening 12 in the carrier gas stream.
  • the cooling medium nozzle 11 is slidably disposed along the longitudinal axis 7 of the Laval nozzle 3, so that the cooling medium flow is either entered within the Laval nozzle 3 in the carrier gas stream or downstream of the Laval nozzle 3 is entered into the carrier gas stream.
  • the cooling medium nozzle 11 is designed to be longitudinally displaceable so that the outlet opening 12 is either positioned within the Laval nozzle 3 or positioned behind the outlet side 9 of the Laval nozzle 3.
  • the last case means that the exit side 9 of the Laval nozzle 3 between the outlet opening 12 of the cooling medium nozzle 11 and the input side 8 of the Laval nozzle 3 is located.
  • FIG. 12 shows a case where the cooling medium nozzle 11 is a Laval nozzle, which is inside the Laval nozzle 3.
  • a carrier gas is introduced through the carrier gas port 10 into the Laval nozzle 3, wherein the resulting carrier gas stream is accelerated in the Laval nozzle 3.
  • the cooling medium is then added as cooling medium flow through the cooling medium 11.
  • the reference numeral 14 indicates the displacement range in which the outlet opening 12 of the cooling medium nozzle 11 can move.
  • the first embodiment of the device 1 of the invention comprises a porous body 15. This is formed as a sintered metal disc and centered the cooling medium 11 and the cooling medium supply line 13 inside the Laval nozzle 3.
  • the carrier gas is forced by the porous body 15 in operation, this leads to a homogenization of the carrier gas flow.
  • pressure and velocity fluctuations of the carrier gas before entering the Laval nozzle 3 are damped, so in operation always uniform conditions.
  • Fig. 2 schematically shows a second embodiment of the present invention.
  • the cooling medium nozzle 11 is formed in this case as a capillary, which also represents the cooling medium supply line 13.
  • the cooling medium such as carbon dioxide exits only from the cooling medium supply line 13 through the outlet opening 12 of the cooling medium 11 and is then atomized and distributed in the carrier gas stream.
  • the method according to the invention and the device 1 according to the invention can advantageously serve for applying a cooling medium flow into the region of a component surface which is thermally coated or sprayed.
  • a cooling medium flow into the region of a component surface which is thermally coated or sprayed.
  • carbon dioxide is used as the cooling medium and possibly also as the carrier gas
  • an adaptable distribution of the particle sizes and effective cooling of the component surface can be reduced or avoided by the effectively thermally induced shearing stresses between the coating and component surface.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Nozzles (AREA)

Claims (14)

  1. Procédé destiné à la sortie d'un flux de fluide de refroidissement pour le refroidissement d'un composant lors de l'enduction thermique, un flux de fluide de refroidissement étant introduit dans le flux de gaz vecteur par une buse de fluide de refroidissement (11), le fluide de refroidissement étant liquide et/ou gazeux, caractérisé en ce qu'un flux de gaz vecteur est amené à travers une tuyère de Laval (3), la tuyère de Laval (3) comportant un axe longitudinal (7) et le flux de fluide de refroidissement étant introduit de sorte que la sortie du flux de fluide de refroidissement dans le flux de gaz vecteur s'effectue à l'intérieur de la tuyère de Laval (3) ou en aval de celle-ci.
  2. Procédé selon la revendication 1, dans lequel la buse de fluide de refroidissement (11) peut être déplacée en direction de l'axe longitudinal (7) de la tuyère de Laval (3) par rapport à la tuyère de Laval (3).
  3. Procédé selon la revendication 1 ou 2, dans lequel le fluide de refroidissement se présente à l'état liquide lorsqu'il s'écoule à travers la buse de fluide de refroidissement (11).
  4. Procédé selon l'une des revendications précédentes, dans lequel le fluide de refroidissement comprend au moins une des substances suivantes:
    - du dioxyde de carbone (CO2) ;
    - de l'azote (N2) ; et
    - de l'argon (Ar).
  5. Procédé selon l'une des revendications précédentes, dans lequel le gaz vecteur comprend au moins un des gaz suivants:
    - de l'air ;
    - de l'argon ;
    - de l'azote ; et
    - du dioxyde de carbone.
  6. Procédé selon l'une des revendications précédentes, dans lequel le flux de gaz vecteur est amené à travers un corps poreux (15) avant d'ajouter le flux de fluide de refroidissement.
  7. Procédé selon l'une des revendications précédentes, dans lequel la buse de fluide de refroidissement (11) est conçue de manière centrée par rapport à la tuyère de Laval (3).
  8. Procédé selon l'une des revendications précédentes, dans lequel le flux de fluide de refroidissement est introduit dans la direction de l'axe longitudinal (7) de la tuyère de Laval (3).
  9. Dispositif (1) destiné à la sortie d'un flux de fluide de refroidissement, comprenant
    - une tuyère de Laval (3) comportant un côté entrée (8) et un côté sortie (9) ;
    - un raccord de gaz vecteur (10) relié au côté entrée (8) de la tuyère de Laval (3) ; et
    - une buse de fluide de refroidissement (11),
    la buse de fluide de refroidissement (11) étant conçue de manière à ce qu'un orifice de sortie (12) de la buse de fluide de refroidissement (11) se trouve à l'intérieur de la tuyère de Laval (3) ou l'orifice de sortie (12) de la buse de fluide de refroidissement (11) se trouve en arrière du côté sortie (9) de la tuyère de Laval (3),
    caractérisé en ce que la buse de fluide de refroidissement (11) peut être déplacée le long d'un axe longitudinal (7) de la tuyère de Laval (3).
  10. Dispositif (1) selon la revendication 9, dans lequel la buse de fluide de refroidissement (11) est conçue coaxialement à la tuyère de Laval (3).
  11. Dispositif (1) selon l'une des revendications 9 à 10, dans lequel la buse de fluide de refroidissement (11) comprend un tuyau dont le diamètre intérieur est de préférence inférieur à 1,5 mm.
  12. Dispositif (1) selon l'une des revendications 9 à 11, dans lequel la buse de fluide de refroidissement (11) comprend au moins une des buses suivantes:
    - une tuyère de Laval,
    - un tuyau à étranglement ; et
    - un tuyau.
  13. Dispositif (1) selon l'une des revendications 9 à 12, dans lequel un corps poreux (15) est formé entre le raccord de gaz vecteur (10) et la tuyère de Laval (3).
  14. Dispositif (1) selon l'une des revendications 9 à 13, dans lequel la buse de fluide de refroidissement (11) est centrée par un corps poreux (15) par rapport à la tuyère de Laval (3).
EP11183587.2A 2011-09-30 2011-09-30 Procédé et dispositif destinés à la sortie d'un flux de liquide de refroidissement Active EP2574408B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES11183587.2T ES2670824T3 (es) 2011-09-30 2011-09-30 Procedimiento y dispositivo para descargar una corriente de medio refrigerante
EP11183587.2A EP2574408B1 (fr) 2011-09-30 2011-09-30 Procédé et dispositif destinés à la sortie d'un flux de liquide de refroidissement
DK11183587.2T DK2574408T3 (en) 2011-09-30 2011-09-30 Process and apparatus for supplying a refrigerant stream
PL11183587T PL2574408T3 (pl) 2011-09-30 2011-09-30 Sposób i urządzenie do rozprowadzania strumienia medium chłodzącego

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11183587.2A EP2574408B1 (fr) 2011-09-30 2011-09-30 Procédé et dispositif destinés à la sortie d'un flux de liquide de refroidissement

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Publication Number Publication Date
EP2574408A1 EP2574408A1 (fr) 2013-04-03
EP2574408B1 true EP2574408B1 (fr) 2018-04-11

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JP6321407B2 (ja) * 2014-03-07 2018-05-09 日本発條株式会社 成膜装置
DE102018125605A1 (de) * 2018-10-16 2020-04-16 Air Liquide Deutschland Gmbh Verfahren zur additiven Fertigung eines Bauteils
JP2021085060A (ja) * 2019-11-27 2021-06-03 三菱重工業株式会社 三次元造形装置及び三次元造形方法
CN111467722B (zh) * 2020-05-21 2023-07-04 南京湛泸科技有限公司 一种消防喷砂炮管及其型面的设计方法
FR3132032A1 (fr) * 2022-01-26 2023-07-28 Revcoo Procédé et système de capture de dioxyde de carbone
CN114574855B (zh) * 2022-03-02 2024-02-09 深圳市众联激光智能装备有限公司 一种激光熔覆设备

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DE10121590A1 (de) * 2001-05-03 2002-11-07 Hptec Gmbh Verfahren zur Kühlung und Vorrichtung hierzu

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EP2574408A1 (fr) 2013-04-03
ES2670824T3 (es) 2018-06-01
PL2574408T3 (pl) 2018-10-31
DK2574408T3 (en) 2018-06-06

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