EP2112327B1 - Dévésiculeur pour compresseur centrifuge - Google Patents

Dévésiculeur pour compresseur centrifuge Download PDF

Info

Publication number
EP2112327B1
EP2112327B1 EP08155239A EP08155239A EP2112327B1 EP 2112327 B1 EP2112327 B1 EP 2112327B1 EP 08155239 A EP08155239 A EP 08155239A EP 08155239 A EP08155239 A EP 08155239A EP 2112327 B1 EP2112327 B1 EP 2112327B1
Authority
EP
European Patent Office
Prior art keywords
aperture
impeller
compressor
liquid droplet
disposed
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
EP08155239A
Other languages
German (de)
English (en)
Other versions
EP2112327A1 (fr
Inventor
Emad Ahmad Obaid Gharaibah
Ciro Cerretelli
Michael Bernhard Schmitz
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Priority to EP08155239A priority Critical patent/EP2112327B1/fr
Priority to AT08155239T priority patent/ATE517231T1/de
Publication of EP2112327A1 publication Critical patent/EP2112327A1/fr
Application granted granted Critical
Publication of EP2112327B1 publication Critical patent/EP2112327B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/284—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/289—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps having provision against erosion or for dust-separation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
    • F04D29/706—Humidity separation

Definitions

  • the present disclosure relates generally to centrifugal compressors, and more particularly, to droplet catchers for removal of liquid from the compressor environment. This disclosure also relates to centrifugal compressors comprising such devices, and methods of improving the performance of the compressors with the devices.
  • a compressor is typically used to boost pressure of a working fluid by receiving power from an electric machine or a turbine, and applying a compressive force to the working fluid.
  • the working fluid may be air, gas, refrigerant, or the like.
  • Compressors are typically classified as positive displacement compressors, dynamic compressors, or turbo compressors, depending on the method they employ for compression.
  • Compressors are typically used to boost pressure of the working fluid by reduction in volume.
  • One type of compressor is a centrifugal compressor. Centrifugal compressors operate by accelerating the working fluid (e.g., gas) through the use of rotating blades, and then restricting the exiting gas so that it is compressed.
  • working fluid e.g., gas
  • Contaminants, such as liquid or solid particles, in the inlet gas can have a severe effect on compressor reliability.
  • Mechanical failures of centrifugal compressors can be caused in many instances by liquid aerosol contamination (i.e., liquid droplets) of the intake gas. Liquid droplets may accumulate in a stream of gas by condensation as the gas impacts surfaces within the compressor.
  • CH-A-248468 which is considered to represent the closest prior art, discloses a mechanism for removing dust or liquid from a gaseous medium for a rotating machine.
  • Figure 1 illustrates a portion of a prior art centrifugal compressor 10 and the gas-liquid droplet flow pattern seen in such current centrifugal compressors.
  • droplets 12 first impact the compressor at the surface of the impeller 14, particularly the blades 16 of the impeller.
  • the droplets 12 hit the rotating impeller 14, collide with each other, and form larger droplets. While a portion of the larger droplet is likely to continue on in the gas flow direction of the compressor, the remaining portion of the larger droplet sticks to the rotating impeller surface.
  • This larger droplet is now more likely to coalesce with new droplets impacting the surface.
  • the droplets thus become larger, their evaporation is hindered, and their erosive potential is higher.
  • the liquid phase volume in the compressor can increase and the efficiency of the compressor is reduced proportionally.
  • the liquid film that forms on the blade surface or casing due to droplet deposition can become unstable and can also lead to formation of droplets of large size that are potentially very harmful as far from an erosion standpoint. Over time, the increased liquid phase volume and contaminants associated therewith will corrode and damage the compressor, leading to failure, or at least frequent shut downs for inspection and repair.
  • droplet separation devices are installed upstream of the first stage in current centrifugal compressors to separate all the water content from the mixture.
  • Current droplet separation devices provide no separation technique that captures the liquid droplets before they are able to coalesce and become larger. This results in a strong intercooling effect, delayed evaporation and a high local volume faction/concentration of the liquid phase, thereby strongly affecting the performance of the compressor.
  • the present invention provides a liquid droplet catching device installed in a compressor impeller as defined in claim 1.
  • the article includes a liquid droplet catching device installed in a compressor impeller.
  • the device includes an aperture disposed on a surface of the impeller and configured to receive the liquid droplet, and a channel disposed beneath and in fluid communication with the aperture, wherein in the channel is configured to direct the liquid droplet away from the aperture and out of the compressor impeller.
  • a centrifugal compressor in another embodiment, includes a centrifugal impeller.
  • the centrifugal impeller comprises a plurality of rotating integral blades, each of the plurality of rotating integral blades having a root portion and a tip portion, wherein the plurality of rotating integral blades are configured to compress air in a centrifugal gravitational field, and a plurality of liquid droplet catching devices disposed on the plurality of rotating integral blades, wherein the liquid droplet catching device comprises an aperture disposed on a surface of the impeller and configured to receive the liquid droplet, and a channel disposed beneath the aperture within the plurality of rotating integral blades and in fluid communication with the aperture, wherein the channel is configured to direct the liquid droplet away from the aperture and out of the centrifugal compressor.
  • a method of improving the performance of a centrifugal compressor through liquid droplet removal includes positioning a liquid droplet catching device in a portion of a centrifugal impeller effective to capture the liquid droplet at a point of impact with the centrifugal impeller, wherein the liquid droplet catching device comprises an aperture disposed on a surface of the centrifugal impeller, and a channel disposed beneath the aperture within the centrifugal impeller and in fluid communication with the aperture; capturing the liquid droplet in the aperture of the liquid droplet catching device; and removing the liquid droplet from the centrifugal compressor by directing the liquid droplet from the aperture to the channel of the liquid droplet catching device.
  • the present disclosure relates to a liquid droplet catching device (hereinafter a "droplet catcher") for removing liquid droplets from a centrifugal compressor.
  • the droplet catcher as described herein enables the efficient collection of liquid droplets and directs them into channels that direct them out of the compressor.
  • Existing concepts of droplet separators are generally based on catchers or filters that are mounted on the outer circumference of the compressor shroud.
  • One of the disadvantages with these separators is that the droplets have time to coalesce and grow before moving from the impeller to the outer circumference of the compressor. The delay permits the global volume fraction of liquid to grow within the compressor.
  • Another disadvantage of such separators is the detachment of large droplets from the breakup of the growing liquid film on the compressor surface.
  • the droplet catchers as disclosed herein remove the liquid droplets at the expecting points of impact with the impeller surface, before coalescence takes place.
  • the sticking droplets are immediately removed from the surface by the droplet catchers so that there is no chance the liquid will be accelerated about the compressor again to form new droplets.
  • the global volume fraction of liquid phase in the compressor can be maintained at an acceptable minimum range, thereby keeping operating conditions near those designed for the compressor.
  • the droplet catchers as disclosed herein can be employed in any centrifugal compressor adapted to compress a gaseous fluid.
  • An example of such a compressor can be found in, for example, a gas turbine engine system or an industrial compressor system.
  • FIG. 2 is a schematic cross-sectional view of a centrifugal stage from a typical industrial compressor. Specifically, the figure illustrates the gas flow path through the centrifugal section 100 within an industrial compressor. Air from the inlet 102 travels through a diffuser 104. The air is driven forward through the diffuser and snakes through a return channel 106 heading toward the centrifugal impeller 108. The impeller blade drives the air outward and further compresses the air prior to its entry into the combustion area (not shown). At the centrifugal impeller 108, the air volume is contained by the impeller itself and the centrifugal stage sleeves 110. As will be discussed in greater detail below, the centrifugal impeller 108 of an industrial compressor can advantageously incorporate the droplet catchers as disclosed herein to provide efficient collection of liquid droplets and prevent them from coalescing on the impeller blades and potentially damage the compressor efficiency.
  • Figure 3 shows another application where the droplet catchers described herein can be advantageously employed.
  • Figure 3 a schematic cross-sectional view of an exemplary gas turbine engine is illustrated. From this point forward, reference herein will be made to the use of the centrifugal compressors employed in gas turbine engine systems. It is to be understood, however, that the compressors, and thereby the droplet catchers, disclosed herein can be advantageously used in any system or process wherein the presence of liquid droplets in a compressor system is detrimental to efficiency and/or operating life, such as, for example, industrial compressors as described above.
  • FIG 3 shows the gas flow path through the central part of a gas turbine engine 18 with a conventional axial-centrifugal compressor 20.
  • Air from the inlet 21 travels through a series of axial stages of rotating blades 24 and static stators 22. These rotating axial stages drive the air forward and thereby compress the air in an efficient manner.
  • the centrifugal impeller 26 drives the air outward and further compresses the air prior to its entry into the diffuser 28 and the combustion area 30.
  • the air volume is contained by the impeller itself and the impeller shroud 23. The compressed air is heated in the combustion area and travels through the turbine nozzle 32 and the rotating turbine rotor 34 where work is recovered from the high temperature highly compressed gas.
  • FIG 4 is a perspective drawing of a conventional centrifugal impeller 26 as shown in the cross-section drawing Figure 3 .
  • Rotating integral blades 38 can be described as twisted sheets designed to compress air in a centrifugal gravitational field.
  • Splitter blades 40 which are partial versions of the larger continuous blades 38, prevent excessive diffusion of gas flow as the air channels increase in size with the increasing impeller circumference from the air inlet 42 to the exit 44. It should be noted that modern impellers are generally machined in one piece.
  • the air entering at the inlet has been compressed by the axial compressor stages upstream of the centrifugal impeller.
  • the air, at the inlet, is therefore moving in a direction parallel to the axis of rotation and is already highly compressed.
  • the inner flow path of the air in the impeller is formed by the impeller hub 27.
  • the air itself is driven forward and compressed by the impeller blades 38 in all areas of the blade from blade root 29 to blade tip 31.
  • the flow direction changes from parallel to the axis of rotation to perpendicular to it in all directions.
  • the air by the time it reaches the exit 44, is moving primarily outwardly from the axis of rotation and no longer moving along that axis.
  • the flow field at that point may be described as a centrifugal flow field, in that the primary direction of the air at the centrifugal impeller exit 44 is tangential.
  • FIG. 5 a cross-section of a centrifugal impeller 50 incorporating the droplet catchers 60 of this disclosure is illustrated.
  • the impeller 50 can be installed in the centrifugal compressor of Figure 2 in place of the conventional impeller 26, or in the place of existing impellers comprising conventional droplet separators.
  • the droplet catchers 60 can be disposed on an impeller in combination with a compressor comprising existing shroud catchers or filters.
  • the droplet catchers 60 can be placed anywhere along the surface of the impeller 50.
  • a droplet catcher 60 is disposed on each blade 52 of the impeller 50 at the expected point of impact for the liquid droplets.
  • the expected point of impact for the liquid can depend on many variables such as, for example, the speed of the compressor, the size of the impeller, the size of each blade, the angle of the impeller blades, the liquid condensing in the compressor (e.g. water), and the like.
  • each droplet catcher 60 is shown disposed on the root portion 54 of each blade 50.
  • the catcher 60 can further extend on to the blade itself, as well as incorporate a part of the adjacent hub surface near the root portion.
  • the blade catcher 60 comprises an aperture 62 having a slot shape on the expecting points of impact on the impeller 50.
  • the slot aperture 62 is effective to provide an entrance for the liquid droplets to flow. This enables the efficient collection of the droplets and directs them into channels (not shown) of the droplet catcher 60 that direct the liquid droplets out of the compressor.
  • Figure 6 illustrates one of the droplet catchers 60 in greater detail.
  • the exemplary embodiment of the droplet catcher 60 comprises 3 separate slot apertures 62. In another embodiment, there can be more or less than 3 slot apertures. For example, in some embodiments there can be a plurality of slot apertures on a given droplet catcher. In a different embodiment, only one slot aperture per droplet catcher is needed.
  • the slot apertures 62 are in fluid communication with a channel 64 disposed beneath the apertures within the body of the droplet catcher 60 and/or the impeller 50 itself.
  • the slot apertures can have any size, shape, number, and dimension suitable for capturing the liquid droplets at first impact, before the droplets have a chance to coalesce on the impeller surface, for a particular system.
  • the slot parameters (e.g., size, shape, number, dimensions) will depend on the flow parameters and operating conditions of the compressor on which the droplet catcher is disposed.
  • the slot parameters should be designed such that efficient collection of the droplets is achieved, and the droplets are directed into the channel, which directs the accumulated liquid out of the compressor system.
  • Important factors to consider in determining the parameters of the slot aperture include, without limitation, impeller size, blade design, droplet catcher location, compressor size, compressor speed, liquid droplet composition, and the like.
  • the channel depths will be sufficient to carry the droplets as they enter the catcher 60 away from the slot aperture 62 and out of the compressor without causing a back up of liquid back onto the impeller surface.
  • the channels are configured such that the centrifugal force of the spinning impeller is effective to draw the droplets from the slot entrance 62 along the channel 64 and out of the compressor shroud.
  • FIG. 7 illustrates an optional embodiment of a droplet catcher 80.
  • the droplet catcher 80 is a slot-type catcher, which is effective for removing the drops directly from the blade surface.
  • the droplet catcher 80 can be a slot-like aperture 82 in the surface of a turbine blade 84.
  • the arrows indicate the direction of the flow of fluid (e.g., water) across the blade 84.
  • the entrance side (i.e., upstream end) of the catcher 80 bends down and simultaneously travels beneath and away from the surface of the blade 84 in a downstream direction, such that a liquid droplet traveling in the direction of the arrows will follow the bend of the catcher and be removed from the blade surface.
  • the droplet catcher 80 is particularly suited for draining recently formed film from a turbine surface. As such, the droplet catcher 80 can be positioned downstream of the droplet impact area. Because of the difference in optimum effectiveness, the slot-type droplet catcher 80 can advantageously be used in combination with the droplet catcher 60 described above.
  • the droplet catcher 60 can be positioned directly at the point of impact with the droplet since for that purpose a simpler opening of the droplet catcher 60 can be more effective for removing the droplet, while the slot-type droplet catcher 80 can be positioned downstream of the droplet catcher 60 in an area effective to drain recently formed liquid film from droplets not caught by or landing downstream of, the droplet catcher 60. Black dots are included in Figure 5 to illustrate the flow pattern of the liquid droplets 56 in the compressor. As described above, the droplet catcher 60 is positioned to capture those liquid droplets at the expected point of impact with the impeller.
  • additional droplet catchers can be positioned further downstream of the expected point of impact.
  • slot-type droplet catchers such as those illustrated in Figure 7
  • the flow pattern illustrates some of the liquid droplets being captured in the slot aperture 62 upon impact with the impeller.
  • the droplet catcher 60 will not capture and collect every liquid droplet.
  • the flow pattern shows some droplets 56 impacting a region of the impeller outside of the droplet catcher 60. Centrifugal forces will carry these droplets to the outer perimeter of the impeller 50. Because the droplet catchers 60 have captured many of the impending droplets 56, the chance for stagnant drops to build up on the wall and form a film are reduced.
  • droplets therefore, can travel off the impeller and be captured by optional existing droplet separator devices, such as catchers and filters mounted on the compressor shroud.
  • droplet separator devices such as catchers and filters mounted on the compressor shroud.
  • the remaining droplets 56 can be captured by a second set of droplet catchers located on the impeller of the subsequent stage.
  • the global volume fraction of liquid phase in the multi-stage compressor will decrease as the liquid droplets travel from stage to stage, such that a minimum amount of liquid is present at the compressor exit.
  • the droplet catchers of each compressor stage can have the same dimensions and mounting locations, or the catchers can be located on different parts of the blade and have dimensions that vary from stage to stage.
  • the droplet catchers of the latter stages can be of a reduced size and dimension than those in the early stages when the liquid droplets are heaviest and the most contaminants are present in the compressor.
  • the centrifugal impeller 26 can further optionally comprise striping or carved grooves 90 disposed on the blades 38, in order to help the collection of water.
  • Figure 8 is a magnified view of a section of the impeller 26 illustrating the grooves 90.
  • the striping or grooves 90 can be configured to drain the water down the impeller blade surface either toward the droplet catcher slots or toward the impeller casing where other droplet collection devices can be disposed.
  • the centrifugal impeller as shown in Figure 8 can further optionally comprise a drainage line configured to collect the liquid droplet flow from each of the droplet catchers 60.
  • the drainage line can be disposed below the droplet catcher, i.e., below the impeller blade surface and, therefore, not visible in the figure.
  • the drainage line can have any suitable shape for collecting the liquid, such as a trough, tube, pipe, or the like.
  • the drainage line can further be connected to a receptacle disposed outside the compressor housing for collection and periodic disposal of the liquid collected during operation of the compressor.
  • a method of removing liquid and contaminants from a centrifugal compressor can include positioning a droplet catcher on an impeller surface, wherein the droplet catcher is disposed in a position effective to capture a liquid droplet at the point of impact with the impeller surface.
  • the droplet catcher can comprise a slot aperture configured to receive the liquid droplet, and a channel in fluid communication with the slot aperture configured to direct the liquid droplet away from the slot aperture and out of the compressor.
  • the droplet catcher as described herein present clear advantages over existing droplet separators, particularly those disposed on the outer circumferences of compressors.
  • the disclosed droplet catcher enables the efficient collection of liquid droplets and directs them into channels that direct them out of the compressor before the droplets have time to coalesce and grow.
  • the droplet catchers as disclosed herein remove the liquid droplets at the expecting points of impact with the impeller surface, before coalescence takes place, immediately removing the droplets from the surface so that there is no chance the liquid will be accelerated about the compressor again to form new droplets.
  • the global volume fraction of liquid phase in the compressor can be maintained at an acceptable minimum range, thereby keeping operating conditions near those designed for the compressor, reducing damage, improving efficiency, and sustaining the life of the compressor.

Claims (15)

  1. Dispositif dévésiculeur (60) pour extraction de gouttelette de liquide, installé dans une roue (50) de compresseur, le dispositif comprenant
    une première ouverture (62) ménagée dans une surface de la roue (50) et conçue pour recevoir la gouttelette de liquide ; caractérisé par :
    une rainure (64) ménagée sous l'ouverture (62) de la roue et en communication fluidique avec l'ouverture, la rainure (64) étant conçue pour éloigner la gouttelette de liquide de la première ouverture (62) et la faire quitter la roue (50) de compresseur.
  2. Dispositif selon la revendication 1, dans lequel la surface de la roue comporte une pluralité de gorges (90) ménagées sur celle-ci, conçues pour diriger la gouttelette de liquide vers la première ouverture.
  3. Dispositif selon la revendication 1, dans lequel la première ouverture (62) a la forme d'une fente.
  4. Dispositif selon la revendication 1, comprenant en outre une deuxième ouverture ménagée en aval de la première ouverture, la deuxième ouverture comportant une extrémité amont et une extrémité aval, la surface de la roue à l'extrémité amont s'incurvant vers le bas depuis la surface de la roue à l'extrémité aval et passant sous cette dernière surface pour former la seconde ouverture, la seconde ouverture étant conçue pour faire descendre un film de liquide sur la courbure de la surface de la roue et le faire passer par la deuxième ouverture.
  5. Dispositif selon la revendication 1, dans lequel la première ouverture est ménagée à un emplacement de la surface de la roue situé dans une zone d'impact de gouttelettes.
  6. Dispositif selon la revendication 1, dans lequel la première ouverture est ménagée dans une partie formant emplanture d'une aube mobile de la roue de compresseur.
  7. Dispositif selon la revendication 1, dans lequel la roue de compresseur est disposée dans un compresseur industriel.
  8. Dispositif selon la revendication 1, dans lequel la roue de compresseur est disposée dans un moteur à turbine à gaz.
  9. Compresseur centrifuge, comprenant :
    une roue centrifuge (50), comprenant :
    une pluralité d'aubes rotatives monobloc (52), chacune des aubes de la pluralité d'aubes rotatives monobloc ayant une partie formant emplanture et une partie formant extrémité, la pluralité d'aubes rotatives monobloc étant agencées pour comprimer de l'air dans un champ gravitationnel centrifuge ; et
    une pluralité de dispositif dévésiculeurs pour extraction de gouttelettes de liquide selon l'une quelconque des revendications 1 à 6, disposés sur la pluralité d'aubes rotatives monobloc, le dispositif dévésiculeur pour extraction de gouttelette de liquide comprenant une ouverture ménagée dans une surface de la roue et conçue pour recevoir la gouttelette de liquide, et une rainure ménagée sous l'ouverture de la pluralité d'aubes rotatives monobloc et en communication fluidique avec l'ouverture, la rainure étant conçue pour éloigner la gouttelette de liquide de l'ouverture et la faire quitter le compresseur centrifuge.
  10. Compresseur selon la revendication 9, dans lequel le dispositif dévésiculeur comprend en outre une conduite de purge en communication fluidique avec la rainure.
  11. Compresseur selon la revendication 9, dans lequel un ou plusieurs des dispositifs dévésiculeurs pour extraction de gouttelettes de liquide sont disposés sur une surface de chaque aube de la pluralité d'aubes rotatives monobloc.
  12. Moteur à turbine à gaz comprenant le compresseur centrifuge selon la revendication 9.
  13. Procédé pour améliorer les performances d'un compresseur centrifuge par dévésiculation pour extraction de gouttelettes de liquide, le procédé comprenant :
    l'installation d'un dispositif dévésiculeur (60) pour extraction de gouttelette de liquide dans une partie d'une roue centrifuge (50), servant à intercepter la gouttelette de liquide en un point d'impact contre la roue centrifuge, le dispositif dévésiculeur (60) pour extraction de gouttelette de liquide comportant une ouverture (62) ménagée dans une surface de la roue centrifuge, et une rainure ménagée sous l'ouverture dans la roue centrifuge et en communication fluidique avec l'ouverture ;
    l'interception de la gouttelette de liquide dans l'ouverture du dispositif dévésiculeur pour extraction de gouttelette de liquide ; et
    l'évacuation de la gouttelette de liquide depuis le compresseur centrifuge en dirigeant la gouttelette de liquide depuis l'ouverture jusqu'à la rainure du dispositif dévésiculeur pour extraction de gouttelette de liquide.
  14. Procédé selon la revendication 13, comprenant en outre la création d'une gorge ménagée dans une surface de la roue centrifuge en amont du dispositif dévésiculeur pour extraction de gouttelette de liquide, la gorge étant conçue pour diriger la gouttelette de liquide jusqu'à l'ouverture.
  15. Procédé selon la revendication 13, comprenant en outre la réduction d'une fraction volumique globale d'une phase liquide dans le compresseur centrifuge.
EP08155239A 2008-04-25 2008-04-25 Dévésiculeur pour compresseur centrifuge Active EP2112327B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP08155239A EP2112327B1 (fr) 2008-04-25 2008-04-25 Dévésiculeur pour compresseur centrifuge
AT08155239T ATE517231T1 (de) 2008-04-25 2008-04-25 Tropfenfänger für einen radialverdichter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08155239A EP2112327B1 (fr) 2008-04-25 2008-04-25 Dévésiculeur pour compresseur centrifuge

Publications (2)

Publication Number Publication Date
EP2112327A1 EP2112327A1 (fr) 2009-10-28
EP2112327B1 true EP2112327B1 (fr) 2011-07-20

Family

ID=39739277

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08155239A Active EP2112327B1 (fr) 2008-04-25 2008-04-25 Dévésiculeur pour compresseur centrifuge

Country Status (2)

Country Link
EP (1) EP2112327B1 (fr)
AT (1) ATE517231T1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102086886A (zh) * 2011-03-02 2011-06-08 苏州顶裕节能设备有限公司 刀片式叶轮
WO2013113324A1 (fr) * 2012-01-31 2013-08-08 Rheinisch-Westfälische Technische Hochschule Aachen Turbine à gaz dotée d'un carter rotatif

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH248468A (de) 1945-11-29 1947-05-15 Bbc Brown Boveri & Cie Einrichtung für das Ausscheiden von Beimischungen aus einem gasförmigen Fördermedium.
US3104964A (en) * 1961-12-28 1963-09-24 Gen Electric Gas pump with liquid removal means
CH521514A (de) * 1970-07-15 1972-04-15 Linde Ag Entspannungsturbine
FR2694962B1 (fr) * 1992-08-19 1994-10-21 Snecma Turboréacteur dont la chambre de combustion est protégée contre les effets d'une ingestion massive d'eau.

Also Published As

Publication number Publication date
ATE517231T1 (de) 2011-08-15
EP2112327A1 (fr) 2009-10-28

Similar Documents

Publication Publication Date Title
US9689263B2 (en) Droplet catcher for centrifugal compressor
US7367178B2 (en) Gas turbine system
US7284953B2 (en) Dirt separator for gas turbine air supply
CA2604455C (fr) Separateur air-huile electrostatique autonome pour moteur d'aeronef
EP2861871B1 (fr) Compresseur à gaz humide et procédé
EP3324019A1 (fr) Procédé de séparation de particules présentes dans un flux de moteur à turbine
SE522132C2 (sv) Förfarande för rengöring av en stationär gasturbinenhet under drift
US20120230812A1 (en) Intermediate floor for a radial turbine engine
CN1590709A (zh) 涡轮机翼面冷却气流微粒分离器
CN102635444A (zh) 涡轮入口空气系统
US20080050221A1 (en) Systems for moisture removal in steam turbine engines
EP2112327B1 (fr) Dévésiculeur pour compresseur centrifuge
JP5653659B2 (ja) 蒸気タービンの車室構造
US6648935B2 (en) Dual stage extraction blower for removing contaminants from an air stream
JP4296829B2 (ja) オイルミストの捕集方法およびオイルミストセパレータ
CN107725120B (zh) 防尘装置及航空发动机
JPH08200007A (ja) 蒸気タービンの湿分除去装置
EP1382798B1 (fr) Machine tournante
RU2752681C1 (ru) Способ защиты газогенератора турбореактивного двухконтурного двигателя от попадания частиц пыли
WO2004041442A1 (fr) Separateur
JP2010142670A (ja) オイルミスト除去装置
RU2216386C2 (ru) Турбосепаратор
JPH1054257A (ja) ガスタービン異物捕獲装置
KR100563973B1 (ko) 안내깃 최적화에 의한 고효율 원심력식 미스트 제거장치
JPS61265307A (ja) 軸流蒸気タ−ビン

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

17P Request for examination filed

Effective date: 20100428

17Q First examination report despatched

Effective date: 20100601

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RTI1 Title (correction)

Free format text: DROPLET CATCHER FOR CENTRIFUGAL COMPRESSOR

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: SERVOPATENT GMBH

REG Reference to a national code

Ref country code: NL

Ref legal event code: T3

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602008008332

Country of ref document: DE

Effective date: 20110915

REG Reference to a national code

Ref country code: NO

Ref legal event code: T2

Effective date: 20110720

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 517231

Country of ref document: AT

Kind code of ref document: T

Effective date: 20110720

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110720

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110720

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110720

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110720

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111121

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111120

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110720

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110720

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110720

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110720

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110720

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111021

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110720

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110720

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110720

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110720

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110720

26N No opposition filed

Effective date: 20120423

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110720

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602008008332

Country of ref document: DE

Effective date: 20120423

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120430

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120425

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111020

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110720

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110720

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120425

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080425

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20150426

Year of fee payment: 8

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20160427

Year of fee payment: 9

REG Reference to a national code

Ref country code: NL

Ref legal event code: MM

Effective date: 20160501

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160501

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20170425

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170425

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 11

REG Reference to a national code

Ref country code: CH

Ref legal event code: PCAR

Free format text: NEW ADDRESS: WANNERSTRASSE 9/1, 8045 ZUERICH (CH)

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NO

Payment date: 20230322

Year of fee payment: 16

Ref country code: FR

Payment date: 20230321

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20230322

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20230321

Year of fee payment: 16

Ref country code: CH

Payment date: 20230502

Year of fee payment: 16