EP2113638A1 - Dispositif d'injection - Google Patents

Dispositif d'injection Download PDF

Info

Publication number
EP2113638A1
EP2113638A1 EP08155446A EP08155446A EP2113638A1 EP 2113638 A1 EP2113638 A1 EP 2113638A1 EP 08155446 A EP08155446 A EP 08155446A EP 08155446 A EP08155446 A EP 08155446A EP 2113638 A1 EP2113638 A1 EP 2113638A1
Authority
EP
European Patent Office
Prior art keywords
cover plate
cavity
flow channel
medium
outlet opening
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.)
Withdrawn
Application number
EP08155446A
Other languages
German (de)
English (en)
Inventor
Joel Schlienger
Christoph Mathey
Gerd Mundinger
Patrick Aberle
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.)
Accelleron Industries AG
Original Assignee
ABB Turbo Systems AG
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 ABB Turbo Systems AG filed Critical ABB Turbo Systems AG
Priority to EP08155446A priority Critical patent/EP2113638A1/fr
Priority to DE112009000350T priority patent/DE112009000350A5/de
Priority to JP2011506706A priority patent/JP5275453B2/ja
Priority to KR1020107019423A priority patent/KR101321635B1/ko
Priority to PCT/EP2009/055200 priority patent/WO2009133139A1/fr
Priority to CN2009801160594A priority patent/CN102016238A/zh
Publication of EP2113638A1 publication Critical patent/EP2113638A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/002—Cleaning of turbomachines

Definitions

  • the invention relates to an injection device for injecting a medium into a flow channel.
  • injection devices are used approximately in the field of supercharged internal combustion engines as cleaning modules for injecting a cleaning medium in the flow channel of the exhaust gas turbine of the turbocharger.
  • HFO combustion produces an excessive proportion of damaging deposits in the exhaust pipes and, in the flow area of the exhaust gas turbines, on the turbine blades and the turbine duct contours and in particular the guide elements (guide vanes) of the guide device (nozzle ring). , which is upstream of the turbine blades in the flow channel.
  • the deposits in the narrow vane passages of the nozzle ring lead to an obstruction of the flow cross-sections, affect the performance of the turbine and reduce the efficiency of the entire charging system. Further reduce the Deposits on the channel walls the clearance between the turbine blade tips and the corresponding mating contour. Due to the progressive contamination and the associated thickening of the deposit, the blade ends of the turbine can increasingly wear out due to abrasion. After cleaning a turbocharger (service) and the removal of the deposits result in the consequence too large top games, which can reduce the loader efficiency for further operation.
  • the contaminated parts i. the turbine blades and in particular the guide elements of the guide device are freed from the deposits at regular intervals by means of a cleaning liquid injected into the exhaust gas flow in the flow channel.
  • An axial turbine is known with a device for introducing a cleaning medium into the blade channel.
  • a cleaning medium leading and provided with exit points a ring-forming nozzle carrier is disclosed, which is arranged radially outside the inflow channel at the inlet into the blade channel of the turbine at a distance from the guide blade carrier.
  • the distance to the guide blade carrier and the radially outer arrangement of the nozzle carrier ensure that form no thermal stresses between the nozzle carrier and the guide vane carrier.
  • the nozzle carrier and the nozzles introducing the cleaning medium into the flow channel are also spaced from the guide vanes to ensure that the cleaning medium can be distributed in the flow prior to impinging on the vanes. However, this spacing from the vanes can cause the cleaning medium in the flow to dissolve too much, so that the cleaning effect of a collimated jet can not be achieved by far. A targeted cleaning of the guide elements can not be achieved.
  • a similar device is off DE 2 008 503 known. Again, a cleaning liquid is injected at a great distance from radially outside the flow channel into the flow.
  • a device for cleaning the turbine blades of an exhaust gas turbocharger in which water is injected by means of water injection nozzles upstream of the guide elements in the exhaust gas stream.
  • the water is from a High-pressure water supply via a water pipe to the individual water injectors passed, which then provides the appropriate stream of droplets for cleaning.
  • Water line, injectors and injection nozzles are arranged outside of the flow channel forming housing parts and realized as separate components.
  • a cleaning device for an exhaust gas turbine of an exhaust gas turbocharger which comprises upstream of the nozzle ring opening into the flow channel for injecting a cleaning liquid from the radially inner side into the annular flow channel.
  • the device further comprises a cavity for the distribution of the cleaning liquid to the openings and a supply line for supplying the cleaning liquid to the cavity.
  • the object of the invention is to provide a reliable injection device for injecting a medium into a flow channel, which can be used in particular in exhaust gas turbines as a simple and reliable cleaning device.
  • an injection module which comprises a cavity surrounding the flow channel at least partially for receiving the medium to be injected and an outlet opening connecting the cavity with the flow channel for injecting the medium into the flow channel, wherein the outlet opening is closed by means of a prestressed cover plate, that the cover plate dissolves when creating a higher pressure in the cavity against the bias and releases the outlet opening.
  • an outlet opening for ejecting the medium to be injected is provided between a support element and a cover plate, wherein the cover plate rests in the region of the outlet opening with a prestressing on the support element guided up to the edge of the flow channel, so that the outlet opening between the support element and the cover plate is closed by the cover plate. Only when applying a higher pressure in the cavity, the cover plate dissolves against its bias from the support element and thereby releases the outlet opening. The injected medium flows at this moment from the cavity through the outlet opening between the cover plate and the support element in the flow channel.
  • the cover plate between a clamping element and the support member may be clamped.
  • Clamping element and support element are positively or non-positively connected (for example by screws or rivets) or fastened to each other by means of interlocking securing element.
  • the outlet opening is provided for ejecting the medium to be injected between two sheets, wherein the cover sheet rests on the optionally connected to a support member support plate in the region of the outlet opening with a bias, so that the outlet opening between the two sheets is closed.
  • the two sheets are optionally connected at their inner ends to the support element and together with this form the cavity.
  • the cover plate dissolves against the bias of the support plate and thereby releases the outlet opening.
  • the medium to be injected flows in this moment from the cavity through the outlet opening between the two sheets in the flow channel.
  • one of the two sheets, or even both, be clamped between a clamping element and the support member.
  • Clamping element and support element are positively or non-positively connected (for example by screws or rivets) or fastened to each other by means of interlocking securing element.
  • cover or support plate can be welded to the support element, soldered or connected in any other material, form or non-positively with the support element.
  • the cover plate and the support plate can also be integrally formed from a metal sheet.
  • a support element can optionally be enclosed by this sheet metal.
  • the inlet channel can be arranged in the cavity at an angle, so that when entering the medium to be injected into the cavity this is acted upon by a tangential component and thereby an improved distribution of the medium to be injected is achieved in the cavity.
  • the injection module according to the invention can be used as a cleaning module in axial as well as in radial or mixed flow turbines or in compressors as well as in the associated flow-carrying pipelines which occur in charging systems.
  • the injection module serves to inject a cleaning fluid as the medium to be injected into the flow channel at a specific location in front of the nozzle ring, fixed or periodically changing pressure (pulsation). This should wet the nozzle ring and remove the contaminants.
  • such a cleaning module can be used for cleaning a flow channel of any line system, which leads, for example hot exhaust gases or heavily polluted air over a short or long distance.
  • Support element, clamping element, cover plate and support plate may annular or partial ring-shaped (ring segments) surround the flow channel at least partially or be arranged circular or partially circular in the interior of an annular flow channel.
  • Fig. 1 shows a conventional exhaust gas turbocharger with exhaust gas turbine 20 and compressor 10, and disposed therebetween bearing housing 50.
  • the exhaust gas turbine includes a gas inlet housing 21 through which the hot exhaust gas flows to the turbine and this drives before the exhaust gas is supplied through the gas outlet housing 22 of the exhaust system.
  • the turbine wheel is arranged at one end of a shaft rotatable about the axis A, which is rotatably mounted in the bearing housing 50.
  • the compressor wheel At the other end of the shaft is the compressor wheel, which compresses air drawn in through the air inlet housing 11, which air is subsequently collected in the air outlet housing 21 and fed to the combustion chambers of the internal combustion engine.
  • the turbine is an axial flowed axial turbine.
  • the exhaust gas could be directed onto the turbine wheel in a direction which is strictly radial or slightly inclined to the radial direction, in which case a mixed flow turbine is used.
  • the following figures show a first embodiment of the inventive cleaning device, which consists of a plurality of components as a cleaning module, for an axial turbine and for a radial or mixed-flow turbine and a second embodiment, which only by means of a representation for radial, or mixed flow Turbine is explained, which can just as well be used for axial turbines.
  • the medium to be injected is usually a liquid, in particular water or a compound of water and additives. As a medium to be injected, however, air, steam or mixtures of both media can be used.
  • the inventive cleaning module 40 is primarily composed of a ring or partially annular support member 41 and a cover plate 43 together.
  • the cover plate 43 is arranged with respect to the support member 41 such that support member 41 and cover plate 43 enclose a ring or semi-annular cavity 46.
  • the support element 41 optionally has a profile which limits the cavity 46 to at least two sides, so that the cover plate 43 extends over the cavity 46 like a cover plate.
  • the cover plate rests on one side of the support element 41 on this, wherein the support takes place under pretension according to the invention.
  • the cover plate 43 is fixed on the other side of the support member 41 under deformation on the support member 41.
  • the cover plate is clamped, for example, via a ring-shaped or partially annular clamping element 42 in the axial direction on the support member 41.
  • the axial bearing surfaces of the cover plate 43 on the inner and outer diameter of the support member 41 are axially offset slightly by a predetermined length for this purpose.
  • the support member 41 is clamped relative to the clamping element 42 in function of the flexural rigidity of the cover plate 43, so that this bends easily. In the area of the inner bearing surface thereby arises the mentioned preloaded pad.
  • the clamping force of the sheet depends on the Verspannweg, of the selected sheet thickness, respectively the material used.
  • An annular or part-ring-shaped securing element 44 can optionally prevent relative displacement of the components in the axial direction and thereby maintains the prestressing of the clamping assembly.
  • the concentric position of the cover plate 43 relative to the support element 41 can optionally be ensured via an inner seat of the annular clamping element 42.
  • the exhaust gas turbine cleaning liquid usually water
  • the cover plate 43 is slightly braced, so that it lifts off the support on the support member 41 and opens an outlet opening 47 in the form of an annular gap between the cover plate 43 and the support member 41.
  • the water escapes through the minimally widening annular gap in the flow channel and wets the polluted nozzle ring 26 over the entire circumference.
  • the water pressure drops, so that the annular gap closes and penetration of dirt particles into the interior of the cleaning module 40, in particular the cavity 46 is prevented.
  • the surface contour of the cover plate 43 can be made smooth or with a surface structure but also have local openings such as slots in the injection direction, through which the water can escape at preferred locations in the flow channel. Alternatively, these slots can also be mounted in the support member 41.
  • the inventive cleaning module is arranged on the radially outer region of the flow channel. If the flow channel is annular, it thus has a radially inner housing boundary, then the cleaning module can likewise be arranged on this radially inner region of the flow channel.
  • the inventive cleaning module 40 in turn consists of a ring-shaped or partially ring-shaped support element 41 and a circumferential and self-contained or open cover plate 43 together. This results between the cover plate 43 and the support member 41 an outlet opening 47 in the form of an annular gap through which the water can be injected into the flow channel.
  • the flexural rigidity of the cover plate 43 and the water pressure built up in the cavity 46 determine the height of the annular gap. The thicker the cover plate 43, the smaller the gap and the higher the penetration depth of the injected into the flow channel water at the same water pressure. After completion of the washing process, the pressure in the cavity 46 drops again, whereby the outlet opening 47 closes and prevents contamination of the cleaning module. Any deposits on the cover plate 43, the annular gap 47 or the support element 41 are broken by the bending movement of the cover plate and thus ideally achieved a self-cleaning effect for the cleaning module.
  • the cover plate 43 is pressed in the region of the outlet opening 47 by plastic deformation radially outward.
  • the outlet opening 47 is closed in the assembled state by the built-up bias and the still missing water pressure.
  • the cover plate 43 is radially clamped by a self-contained or open clamping element 42 with conical outer diameter in the support member 41 and fixed by an axial securing element 44.
  • the clamping composite consisting of support element 41, cover plate 43, clamping element 42 and securing element 44, is finally bolted by a plurality of screws 60 to the turbine housing.
  • the water supply into the cavity 46 of the inventive cleaning module via one or more circumferentially distributed inlets 45. These are possible in the tangential direction, ie at an angle to the axial direction to perform the cavity 46. As a result, a good distribution of water within the cavity 46 is achieved with uniform outflow of the washing water through the thin gap of the outlet opening 47 between the cover plate 43 and the support element 41.
  • the surface contour of the cover plate 43 can again be made smooth or with a surface structure.
  • a support plate 411 is arranged in a second embodiment of the inventive cleaning module according to Fig. 6 in a second embodiment of the inventive cleaning module according to Fig. 6 in a second embodiment of the inventive cleaning module according to Fig. 6 in a second embodiment of the inventive cleaning module according to Fig. 6 in a second embodiment of the inventive cleaning module according to Fig. 6 is instead of the guided up to the edge of the flow channel support member 41, as a support for the cover plate 43.
  • the support plate 411 is to be regarded as a flexible extension of the support member 41 and as such part thereof.
  • the two plates 43 and 411 limit together with the support member 41, the cavity 46.
  • the two sheets are pressed against each other with bias.
  • the two sheets, the support plate 411 and the cover plate 43 are soldered or welded to corresponding soldering or welding points 61 on the support member 41.
  • the sheets may be fastened to the support element 41 by means of a tensioning element (not shown).
  • the two sheets, the support plate 411 and the cover plate 43, as shown in FIG Fig. 7 be made coherently from a single piece of sheet metal.
  • deck and possibly support plate are advantageously made of a high temperature resistant material. This retains its shape, which is of central importance for the device according to the invention, even at high temperatures.
  • Cover and support plate can be made of the same material, or of materials with different properties, in particular different thermal expansion coefficients, whereby the bias voltage between the two sheets can be maintained even at greater temperature fluctuations.
  • this cover and support plate can also have different sheet thicknesses and / or surface structures.
  • a sequence of gaseous and liquid media or mixtures of the same or different temperature and the same or different thermal conductivity can be injected through the injection module into the flow channel during operation. This can be prevented that the cover plate loses its shape due to repeated temperature shocks and thus at best the bias voltage can not be maintained over time.
  • the heated due to the hot exhaust gases in the flow channel cover plate with warm water or air is cooled to a certain temperature before subsequently the cooler cleaning liquid is injected into the flow channel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)
  • Cleaning By Liquid Or Steam (AREA)
EP08155446A 2008-04-30 2008-04-30 Dispositif d'injection Withdrawn EP2113638A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP08155446A EP2113638A1 (fr) 2008-04-30 2008-04-30 Dispositif d'injection
DE112009000350T DE112009000350A5 (de) 2008-04-30 2009-04-29 Einspritzvorrichtung
JP2011506706A JP5275453B2 (ja) 2008-04-30 2009-04-29 噴射装置
KR1020107019423A KR101321635B1 (ko) 2008-04-30 2009-04-29 분사 장치
PCT/EP2009/055200 WO2009133139A1 (fr) 2008-04-30 2009-04-29 Dispositif d'injection
CN2009801160594A CN102016238A (zh) 2008-04-30 2009-04-29 喷射装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08155446A EP2113638A1 (fr) 2008-04-30 2008-04-30 Dispositif d'injection

Publications (1)

Publication Number Publication Date
EP2113638A1 true EP2113638A1 (fr) 2009-11-04

Family

ID=40029280

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08155446A Withdrawn EP2113638A1 (fr) 2008-04-30 2008-04-30 Dispositif d'injection

Country Status (6)

Country Link
EP (1) EP2113638A1 (fr)
JP (1) JP5275453B2 (fr)
KR (1) KR101321635B1 (fr)
CN (1) CN102016238A (fr)
DE (1) DE112009000350A5 (fr)
WO (1) WO2009133139A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011089155A3 (fr) * 2010-01-22 2012-09-07 Lufthansa Technik Ag Dispositif et procédé de nettoyage d'un joint d'étanchéité frontal d'un réacteur
DE102017009191A1 (de) 2017-10-02 2018-05-30 Daimler Ag Verfahren zur Reinigung eines Abgasturboladergehäuse
DE102019132939A1 (de) * 2019-12-04 2021-06-10 Man Energy Solutions Se Anschlussadapter einer Turbine und Turbine
EP3985230A1 (fr) * 2020-10-13 2022-04-20 ABB Switzerland Ltd. Turbine radiale dotée d'un dispositif de nettoyage pour nettoyer un anneau d'aubes fixes et procédé de montage et démontage du dispositif de nettoyage

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011008649A1 (de) * 2011-01-14 2012-07-19 Abb Turbo Systems Ag Turbinenreinigung
CN104081020A (zh) * 2011-12-01 2014-10-01 丰田自动车株式会社 带有增压器的内燃机

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH335901A (de) 1955-11-10 1959-01-31 Sulzer Ag Turbine mit einer Einrichtung zum Einführen eines Reinigungsmediums in den Schaufelkanal
DE2016803A1 (de) * 1969-04-25 1970-11-12 Ingenieurbureau Roshard, Küsnacht (Schweiz) Düse für zwei entgegengesetzte Durchflußrichtungen mit unterschiedlichen Durchflußquerschnitten, sowie deren Verwendung
DE2008503A1 (de) 1969-07-28 1971-02-11 VEB Bergmann Borsig/Gorlitzer Ma schinenbau, Werk Berlin, Berlin Einrichtung zum Waschen der Schaufeln von Gasturbinen
DE2641425A1 (de) * 1976-09-15 1978-03-16 Kloeckner Humboldt Deutz Ag Vorrichtung zum reinigen einer turbine
DE3515825A1 (de) 1984-05-11 1985-11-14 Elliott Turbomachinery Co., Inc., Jeannette, Pa. Verfahren und vorrichtung zum steuern des reinigens der turbinenlaufschaufeln eines abgasturboladers
DE3220081C1 (de) * 1982-05-28 1987-07-09 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8900 Augsburg Vorrichtung zur Reinigung von Turbinen, insbesondere von Abgasturboladern an Brennkraftmaschinen
EP1627993A1 (fr) 2004-08-16 2006-02-22 ABB Turbo Systems AG Dispositif de nettoyage de turbine

Family Cites Families (10)

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DE2120213B1 (de) * 1971-04-24 1972-05-25 Man Einrichtung zum Entfernen von Ablagerungen an Turbinen
JPS5654340Y2 (fr) * 1974-06-21 1981-12-18
JPH0512351Y2 (fr) * 1986-02-18 1993-03-30
JPH05288151A (ja) * 1992-04-09 1993-11-02 Toyota Autom Loom Works Ltd 圧縮機
JPH07273078A (ja) * 1994-03-30 1995-10-20 Kawasaki Steel Corp ウエハの洗浄方法及び洗浄装置
JP3693123B2 (ja) * 1994-09-05 2005-09-07 本田技研工業株式会社 ２サイクルエンジンのリード弁装置
JPH08338545A (ja) * 1995-06-13 1996-12-24 Arai Pump Mfg Co Ltd リード弁装置
DE19549142A1 (de) * 1995-12-29 1997-07-03 Asea Brown Boveri Verfahren und Vorrichtung zur Nassreinigung des Düsenrings einer Abgasturbolader-Turbine
JPH10261606A (ja) * 1997-03-19 1998-09-29 Fujitsu Ltd 基板カセット洗浄装置及び基板カセット洗浄方法
JP3447239B2 (ja) * 1999-03-09 2003-09-16 株式会社大林組 コンクリート吹付け装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH335901A (de) 1955-11-10 1959-01-31 Sulzer Ag Turbine mit einer Einrichtung zum Einführen eines Reinigungsmediums in den Schaufelkanal
DE2016803A1 (de) * 1969-04-25 1970-11-12 Ingenieurbureau Roshard, Küsnacht (Schweiz) Düse für zwei entgegengesetzte Durchflußrichtungen mit unterschiedlichen Durchflußquerschnitten, sowie deren Verwendung
DE2008503A1 (de) 1969-07-28 1971-02-11 VEB Bergmann Borsig/Gorlitzer Ma schinenbau, Werk Berlin, Berlin Einrichtung zum Waschen der Schaufeln von Gasturbinen
DE2641425A1 (de) * 1976-09-15 1978-03-16 Kloeckner Humboldt Deutz Ag Vorrichtung zum reinigen einer turbine
DE3220081C1 (de) * 1982-05-28 1987-07-09 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8900 Augsburg Vorrichtung zur Reinigung von Turbinen, insbesondere von Abgasturboladern an Brennkraftmaschinen
DE3515825A1 (de) 1984-05-11 1985-11-14 Elliott Turbomachinery Co., Inc., Jeannette, Pa. Verfahren und vorrichtung zum steuern des reinigens der turbinenlaufschaufeln eines abgasturboladers
EP1627993A1 (fr) 2004-08-16 2006-02-22 ABB Turbo Systems AG Dispositif de nettoyage de turbine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011089155A3 (fr) * 2010-01-22 2012-09-07 Lufthansa Technik Ag Dispositif et procédé de nettoyage d'un joint d'étanchéité frontal d'un réacteur
DE102017009191A1 (de) 2017-10-02 2018-05-30 Daimler Ag Verfahren zur Reinigung eines Abgasturboladergehäuse
DE102019132939A1 (de) * 2019-12-04 2021-06-10 Man Energy Solutions Se Anschlussadapter einer Turbine und Turbine
DE102019132939B4 (de) 2019-12-04 2024-03-28 Man Energy Solutions Se Turbine mit einem an einem Turbinengehäuse befestigten Anschlussadapter
EP3985230A1 (fr) * 2020-10-13 2022-04-20 ABB Switzerland Ltd. Turbine radiale dotée d'un dispositif de nettoyage pour nettoyer un anneau d'aubes fixes et procédé de montage et démontage du dispositif de nettoyage
WO2022078727A1 (fr) * 2020-10-13 2022-04-21 Turbo Systems Switzerland Ltd. Turbine radiale pourvue d'un dispositif de nettoyage destiné à nettoyer une bague d'aubage directeur et procédés de montage et de démontage du dispositif de nettoyage

Also Published As

Publication number Publication date
CN102016238A (zh) 2011-04-13
JP2011518989A (ja) 2011-06-30
KR20100107070A (ko) 2010-10-04
JP5275453B2 (ja) 2013-08-28
WO2009133139A1 (fr) 2009-11-05
DE112009000350A5 (de) 2011-03-17
KR101321635B1 (ko) 2013-10-23

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