DE102008011108A1 - Process and cleaning of gas turbine components - Google Patents
Process and cleaning of gas turbine components Download PDFInfo
- Publication number
- DE102008011108A1 DE102008011108A1 DE200810011108 DE102008011108A DE102008011108A1 DE 102008011108 A1 DE102008011108 A1 DE 102008011108A1 DE 200810011108 DE200810011108 DE 200810011108 DE 102008011108 A DE102008011108 A DE 102008011108A DE 102008011108 A1 DE102008011108 A1 DE 102008011108A1
- Authority
- DE
- Germany
- Prior art keywords
- gas turbine
- cleaned
- cleaning
- carbon dioxide
- solid carbon
- 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- Withdrawn
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/003—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods using material which dissolves or changes phase after the treatment, e.g. ice, CO2
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cleaning In General (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
Die Erfindung betrifft ein Verfahren zum Reinigen von Gasturbinenbauteilen, insbesondere zum Entfernen organischer Verunreinigungen von mindestens einer Oberfläche des Gasturbinenbauteils, wobei zum Reinigen ein Reinigungsmedium auf die oder jede zu reinigende Oberfläche aufgetragen bzw. auf die oder jede zu reinigende Oberfläche gerichtet wird. Erfindungsgemäß wird als Reinigungsmedium festes Kohlendioxid verwendet.The invention relates to a method for cleaning gas turbine components, in particular for removing organic contaminants from at least one surface of the gas turbine component, wherein a cleaning medium is applied to the or each surface to be cleaned or directed to the or each surface to be cleaned for cleaning. According to the invention, solid carbon dioxide is used as the cleaning medium.
Description
Die Erfindung betrifft ein Verfahren zum Reinigen von Gasturbinenbauteilen nach dem Oberbegriff des Anspruchs 1.The The invention relates to a method for cleaning gas turbine components according to the preamble of claim 1.
Auf Oberflächen von Gasturbinenbauteilen können sich insbesondere im Betrieb Verunreinigungen in Form organischer Materialien ansammeln, die dazu geeignet sind, eine formschlüssige Verbindung herzustellen. Derartige Verunreinigungen müssen bei der Wartung von Gasturbinenbauteilen von der oder jeder verunreinigten Oberfläche entfernt werden.On surfaces of gas turbine components especially in operation impurities in the form of organic Accumulate materials that are suitable for making a positive connection. Such impurities must be included the maintenance of gas turbine components of the or each polluted surface be removed.
Bisher werden zum Reinigen von Gasturbinenbauteilen Lösungsmittel auf die oder jede zu reinigende Oberfläche aufgetragen. Lösungsmittel erlauben zwar eine effektive Entfernung der Verunreinigungen von der oder jeder zu reinigenden Oberfläche eines Gasturbinenbauteils, der Einsatz von Lösungsmitteln ist jedoch umweltbedenklich.So far For cleaning gas turbine components, solvents are applied to the or each surface to be cleaned applied. solvent Although allow effective removal of impurities from the or each surface of a gas turbine component to be cleaned, the use of solvents is environmentally harmful.
Hiervon ausgehend liegt der vorliegenden Erfindung das Problem zu Grunde, ein neuartiges Verfahren zum Reinigen von Gasturbinenbauteilen zu schaffen. Dieses Problem wird durch ein Verfahren im Sinne von Anspruch 1 gelöst. Erfindungsgemäß wird als Reinigungsmedium festes Kohlendioxyd verwendet.Of these, Based on the present invention, the problem underlying a novel process for cleaning gas turbine components create. This problem is covered by a procedure as defined in claim 1 solved. According to the invention as Cleaning medium used solid carbon dioxide.
Mit dem erfindungsgemäßen Verfahren wird erstmals vorgeschlagen, Gasturbinenbauteile unter Verwendung von festem Kohlendioxid als Reinigungsmittel zu reinigen, wobei das feste Kohlendioxid auf die oder jede zu reinigende Oberfläche des Bauteils aufgetragen bzw. auf die oder jede zu reinigende Oberfläche gerichtet wird. Der Einsatz von festem Kohlendioxid als Reinigungsmedium ist umweltfreundlich und daher umweltunbedenklich. Weiterhin ist hiermit ein kostengünstiges und automatisiertes Reinigen von Gasturbinenbauteilen möglich.With the method according to the invention For the first time, gas turbine components are proposed using of solid carbon dioxide as a cleaning agent, wherein the solid carbon dioxide on the or each surface of the component to be cleaned applied or directed to the or each surface to be cleaned becomes. The use of solid carbon dioxide as a cleaning medium is environmentally friendly and therefore harmless to the environment. Furthermore, hereby is a cost-effective and automated cleaning of gas turbine components possible.
Bevorzugte Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen und der nachfolgenden Beschreibung. Ausführungsbeispiele der Erfindung werden, ohne hierauf beschränkt zu sein, nachfolgend näher erläutert.preferred Further developments of the invention will become apparent from the dependent claims and the following description. Embodiments of the invention without being limited to this to be closer below explained.
Die hier vorliegende Erfindung betrifft ein Verfahren zum Reinigen eines Gasturbinenbauteils. Vorzugsweise dient das erfindungsgemäße Verfahren dem Entfernen organischer Verunreinigungen von mindestens einer Oberfläche des Gasturbinenbauteils.The The present invention relates to a method for cleaning a Gas turbine component. Preferably, the method of the invention is used removal of organic contaminants from at least one surface of the gas turbine component.
Zum Reinigen der oder jeder zu reinigenden Oberfläche des Gasturbinenbauteils wird im Sinne der hier vorliegenden Erfindung als Reinigungsmedium festes Kohlendioxid verwendet, welches auf die oder jede zu reinigende Oberfläche aufgetragen bzw. auf die oder jede zu reinigende Oberfläche gerichtet wird.To the Cleaning the or each surface of the gas turbine component to be cleaned is in the sense of the present invention as a cleaning medium solid carbon dioxide is used, which is to be purified on each or every one of them surface is applied or directed to the or each surface to be cleaned.
Vorzugsweise wird festes Kohlendioxid in Form von CO2-Pellets verwendet, welches auf die oder jede zu reinigende Oberfläche in Form eines Strahls aus CO2-Pellets gerichtet wird. Die CO2-Pellets werden als Strahl vorzugsweise mit Überschallgeschwindigkeit auf die oder jede zu reinigende Oberfläche des Gasturbinenbauteils gerichtet, wobei die CO2-Pelletes eine Temperatur von weniger als –80°C aufweisen.Preferably, solid carbon dioxide in the form of CO 2 pellets is used, which is directed onto the or each surface to be cleaned in the form of a jet of CO 2 pellets. The CO 2 pellets are directed as a jet, preferably at supersonic speed, onto the or each surface of the gas turbine component to be cleaned, the CO 2 pellets having a temperature of less than -80 ° C.
Beim Auftreffen der CO2-Pellets auf eine zu reinigenden Oberfläche wird die zu reinigende Oberfläche des zu reinigenden Gasturbinenbauteils abgekühlt. Auf der Oberfläche befindliche Verunreinigungen verspröden. Bedingt durch unterschiedliche thermische Ausdehnungskoeffizienten des zu reinigenden Gasturbinenbauteils und der zu entfernenden Verunreinigungen entstehen mechanische Spannungen, die zu einem Ablösen der Verunreinigungen führen. Beim Auftreffen auf die zu reinigende Oberfläche des Gasturbinenbauteils sublimiert das feste Kohlendioxid, dasselbe geht demnach unmittelbar vom festen in den gasförmigen Zustand über, ohne dass eine Verflüssigung desselben erfolgt. Daher muss kein Reinigungsmedium entfernt werden, allenfalls müssen abgelöste Verunreinigungen entsorgt werden.Upon impact of the CO 2 pellets on a surface to be cleaned, the surface to be cleaned of the gas turbine component to be cleaned is cooled. Embrittle contaminants on the surface. Due to different thermal expansion coefficients of the gas turbine component to be cleaned and the impurities to be removed, mechanical stresses occur which lead to a detachment of the impurities. Upon impact with the surface of the gas turbine component to be cleaned, the solid carbon dioxide sublimates, and the same therefore passes directly from the solid to the gaseous state without liquefaction of the same. Therefore, no cleaning medium must be removed, if necessary, removed contaminants must be disposed of.
Mit Hilfe des erfindungsgemäßen Verfahrens ist eine rückstandsfreie und umweltfreundliche Entfernung von insbesondere organischen Verunreinigungen von einem Gasturbinenbauteil möglich.With Help of the method is a residue-free and environmentally friendly removal of, in particular, organic contaminants possible from a gas turbine component.
Das erfindungsgemäße Verfahren wird zum Entfernen von organischen Verunreinigungen von mindestens einer Oberfläche eines Gasturbinenbauteils verwendet. Vorzugsweise dient das erfindungsgemäße Verfahren dem Entfernen von organischen Verunreinigungen von mindestens einer Oberfläche einer Laufschaufel oder Leitschaufel einer als Flugtriebwerk ausgebildeten Gasturbine.The inventive method is used to remove organic contaminants from at least a surface a gas turbine component used. Preferably, the method of the invention is used the removal of organic contaminants from at least one Surface of a Blade or vane of a trained as an aircraft engine Gas turbine.
Claims (6)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810011108 DE102008011108A1 (en) | 2008-02-26 | 2008-02-26 | Process and cleaning of gas turbine components |
PCT/DE2009/000225 WO2009106042A1 (en) | 2008-02-26 | 2009-02-18 | Method for cleaning of gas turbine components |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810011108 DE102008011108A1 (en) | 2008-02-26 | 2008-02-26 | Process and cleaning of gas turbine components |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008011108A1 true DE102008011108A1 (en) | 2009-08-27 |
Family
ID=40718960
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200810011108 Withdrawn DE102008011108A1 (en) | 2008-02-26 | 2008-02-26 | Process and cleaning of gas turbine components |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102008011108A1 (en) |
WO (1) | WO2009106042A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011089155A3 (en) * | 2010-01-22 | 2012-09-07 | Lufthansa Technik Ag | Device and method for cleaning a face seal of a jet engine |
FR2979264A1 (en) * | 2011-08-30 | 2013-03-01 | Snecma | Method for cleaning blades of internal rotor of turboshaft engine of aircraft, involves starting projection of pellets on face of blade by projection unit, and moving projection unit to reach and clean blade face |
FR2979263A1 (en) * | 2011-08-30 | 2013-03-01 | Snecma | Method for cryogenic cleaning of e.g. external structure, of turboshaft engine of civil aircraft, involves moving projection part along trajectory from reference position by positioning part with respect to structure to meet characteristics |
US9492906B2 (en) | 2010-08-03 | 2016-11-15 | Mtu Aero Engines Gmbh | Cleaning of a turbo-machine stage |
WO2016180690A1 (en) * | 2015-05-09 | 2016-11-17 | Man Diesel & Turbo Se | Method for cleaning a compressor using dry ice |
JP2020180614A (en) * | 2019-04-24 | 2020-11-05 | ゼネラル・エレクトリック・カンパニイ | Methods for cleaning flow path components of power systems and sump purge kits |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112983652B (en) * | 2021-03-12 | 2022-09-02 | 广州大学城华电新能源有限公司 | Gas inlet control system of gas turbine |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3074822A (en) * | 1960-04-22 | 1963-01-22 | Dudley Develbiss C | Method for cleaning gas turbines |
US5931721A (en) * | 1994-11-07 | 1999-08-03 | Sumitomo Heavy Industries, Ltd. | Aerosol surface processing |
EP1561542A1 (en) * | 2004-02-03 | 2005-08-10 | Siemens Aktiengesellschaft | Process of removing of component layer |
-
2008
- 2008-02-26 DE DE200810011108 patent/DE102008011108A1/en not_active Withdrawn
-
2009
- 2009-02-18 WO PCT/DE2009/000225 patent/WO2009106042A1/en active Application Filing
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011089155A3 (en) * | 2010-01-22 | 2012-09-07 | Lufthansa Technik Ag | Device and method for cleaning a face seal of a jet engine |
US9492906B2 (en) | 2010-08-03 | 2016-11-15 | Mtu Aero Engines Gmbh | Cleaning of a turbo-machine stage |
FR2979264A1 (en) * | 2011-08-30 | 2013-03-01 | Snecma | Method for cleaning blades of internal rotor of turboshaft engine of aircraft, involves starting projection of pellets on face of blade by projection unit, and moving projection unit to reach and clean blade face |
FR2979263A1 (en) * | 2011-08-30 | 2013-03-01 | Snecma | Method for cryogenic cleaning of e.g. external structure, of turboshaft engine of civil aircraft, involves moving projection part along trajectory from reference position by positioning part with respect to structure to meet characteristics |
WO2016180690A1 (en) * | 2015-05-09 | 2016-11-17 | Man Diesel & Turbo Se | Method for cleaning a compressor using dry ice |
CN107530863A (en) * | 2015-05-09 | 2018-01-02 | 曼柴油机和涡轮机欧洲股份公司 | Utilize the method for dry ice cleaning compressor |
JP2020180614A (en) * | 2019-04-24 | 2020-11-05 | ゼネラル・エレクトリック・カンパニイ | Methods for cleaning flow path components of power systems and sump purge kits |
EP3730227A3 (en) * | 2019-04-24 | 2021-02-17 | General Electric Company | Methods for cleaning flow path components of power systems and sump purge kits |
US11383347B2 (en) | 2019-04-24 | 2022-07-12 | General Electric Company | Methods for cleaning flow path components of power systems and sump purge kits |
US11691246B2 (en) | 2019-04-24 | 2023-07-04 | General Electric Company | Methods for cleaning flow path components of power systems and sump purge kits |
JP7427502B2 (en) | 2019-04-24 | 2024-02-05 | ゼネラル エレクトリック テクノロジー ゲゼルシャフト ミット ベシュレンクテル ハフツング | Methods for cleaning power system flow path components and sump purge kits |
Also Published As
Publication number | Publication date |
---|---|
WO2009106042A1 (en) | 2009-09-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20110901 |