NO345755B1 - Method for washing turbocharger rotating blades - Google Patents
Method for washing turbocharger rotating blades Download PDFInfo
- Publication number
- NO345755B1 NO345755B1 NO20190920A NO20190920A NO345755B1 NO 345755 B1 NO345755 B1 NO 345755B1 NO 20190920 A NO20190920 A NO 20190920A NO 20190920 A NO20190920 A NO 20190920A NO 345755 B1 NO345755 B1 NO 345755B1
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- Prior art keywords
- washing
- compressor
- vanes
- gas turbine
- method applies
- Prior art date
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- 238000005406 washing Methods 0.000 title claims description 59
- 238000000034 method Methods 0.000 title claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 239000003599 detergent Substances 0.000 claims description 11
- 230000000694 effects Effects 0.000 claims description 11
- 239000007921 spray Substances 0.000 claims description 8
- 238000011010 flushing procedure Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000000576 coating method Methods 0.000 description 10
- 239000011248 coating agent Substances 0.000 description 9
- 239000000243 solution Substances 0.000 description 6
- 239000012535 impurity Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- RLQJEEJISHYWON-UHFFFAOYSA-N flonicamid Chemical compound FC(F)(F)C1=CC=NC=C1C(=O)NCC#N RLQJEEJISHYWON-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Classifications
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
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- 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)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
Benevnelse Designation
Metode for vasking av aksialkompressor roterende skovler. Method for washing axial compressor rotary vanes.
Metodens anvendelsesområde. The method's scope of application.
Løsningen angår metode for vasking av roterende skovler i en gassturbin aksial kompressor, og også roterende skovler i en drevet aksial turbokompressor. The solution concerns a method for washing rotating vanes in a gas turbine axial compressor, and also rotating vanes in a driven axial turbo compressor.
En gassturbin aksial kompressor og en drevet aksial turbokompressor er begge utsatt for at det dannes et belegg på skovlene, som følge av urenheter, hydrokarboner og våt-salt i mediet som komprimeres. A gas turbine axial compressor and a driven axial turbo compressor are both susceptible to a coating forming on the vanes, as a result of impurities, hydrocarbons and wet-salt in the medium being compressed.
I det følgende benyttes metoden for en gassturbin kompressor som eksempel. Belegg på skovler, også benevnt som fouling, endrer skovlens geometri og aerodynamiske strømningsbildet, hvilket reduserer kompressorens virkningsgrad. In the following, the method for a gas turbine compressor is used as an example. Coating on vanes, also referred to as fouling, changes the geometry of the vanes and the aerodynamic flow pattern, which reduces the efficiency of the compressor.
Videre vil belegg på skovlene utgjøre en ru overflate hvilket øker friksjonen mellom luft og skovvel overflate, hvilket resulterer i øket friksjonsvarme mellom mediet og kompressor skovle, hvilket reduserer kompressorens effekt og ytelse. Furthermore, coating on the vanes will form a rough surface which increases the friction between air and vane surface, which results in increased frictional heat between the medium and compressor vane, which reduces the compressor's effect and performance.
Belegg på skovlene vil videre utgjøre en termisk isolasjon på skovlene, slik at temperaturen i kompressoren øker, som igjen reduserer kompressorens virkningsgrad. Coating on the vanes will also constitute a thermal insulation on the vanes, so that the temperature in the compressor increases, which in turn reduces the efficiency of the compressor.
Kompressorens effektforbruk utgjør ca.60% av energien produsert av turbinen. The compressor's power consumption accounts for approx. 60% of the energy produced by the turbine.
Når kompressorens virkningsgrad reduseres på grunn av belegg på skovlene, synker turbinens termiske virkningsgrad og akseleffekt. When the compressor's efficiency is reduced due to coating on the blades, the turbine's thermal efficiency and shaft power drop.
For å opprettholde kompressorens ytelse og virkningsgrad må skovlene regelmessig vaskes, ved å sprøyte vann og vaskemiddel inn i kompressorens innløp. To maintain the compressor's performance and efficiency, the vanes must be regularly washed, by spraying water and detergent into the compressor's inlet.
Løsningen angår en metode for vasking av turbinens roterende skovler, slik at det oppnås at alle turbinens skovvelrader vaskes, og at begge sider av skovlene vaskes. The solution concerns a method for washing the turbine's rotating blades, so that it is achieved that all the turbine's blade rows are washed, and that both sides of the blades are washed.
Teknikkens stand. State of the art.
Kjente løsninger er Offline vasking og Online vasking, som begge baseres på å sprøyte vann og vaskemiddel inn i kompressorens innløp. Well-known solutions are Offline washing and Online washing, both of which are based on spraying water and detergent into the compressor's inlet.
Metoden med å sprøyte vann og vaskemiddel inn i kompressorens innløp medfører at kun de fremste skovvelradene vaskes, samt at det kun oppnås vasking av skovlens fremside. The method of spraying water and detergent into the compressor's inlet means that only the foremost rows of blades are washed, and that only the front side of the blades are washed.
Løsninger angitt i de mot-holdte publikasjonene D1 og D2 er: Solutions stated in the contested publications D1 and D2 are:
D1: D1:
JPS59503 (A) CORROSION PREVENTION OF TURBINE BLADE Inventor : SUGAYA MASAYOSHI JPS59503 (A) CORROSION PREVENTION OF TURBINE BLADE Inventor : SUGAYA MASAYOSHI
Applicant : TOKYO SHIBAURA ELECTRIC CO Applicant : TOKYO SHIBAURA ELECTRIC CO
D1 omhandler injeksjon av vann i en dampturbin, for å begrense korrosjon på turbinblad. D1 deals with the injection of water into a steam turbine, to limit corrosion on turbine blades.
D1 omhandler dermed ikke vasking av begge sider av kompressor rotor blader, i alle kompressorens trinn. D1 thus does not deal with washing both sides of the compressor rotor blades, in all stages of the compressor.
D2: D2:
EP1138955 (A2) - Method and apparatus for increasing the efficiency of a multi-stage compressor EP1138955 (A2) - Method and apparatus for increasing the efficiency of a multi-stage compressor
Inventor : INGISTOV STEVE [US] Inventor : INGISTOV STEVE [US]
Applicant : WATSON COGENERATION COMPANY [US] Applicant : WATSON COGENERATION COMPANY [US]
D2 omhandler injeksjon av kjølevannvann gjennom dyser under drift av kompressoren. D2 deals with the injection of cooling water through nozzles during operation of the compressor.
Hensikten er å redusere den komprimerte gassens temperatur, for å bedre kompressorens effekt. The purpose is to reduce the temperature of the compressed gas, in order to improve the compressor's effect.
Injeksjon av vann under drift vil gi en kjøle-effekt. Vannet vill imidlertid fordampe etter et antall trinn i kompressoren, og har derfor ingen vaskeeffekt i nedstrøms kompressor trinn. Injection of water during operation will provide a cooling effect. However, the water will evaporate after a number of steps in the compressor, and therefore has no washing effect in the downstream compressor step.
D2 omhandler dermed ikke vasking av begge sider av kompressor rotor blader, i alle kompressorens trinn. D2 thus does not deal with washing both sides of the compressor rotor blades, in all stages of the compressor.
For å utføre vaskeprosessen Offline vasking må gassturbinen stenges ned og avkjøles og roteres med gassturbinens startmotor, typisk med 1000-1200 omdreininger pr. minutt, og vaskes ved at det spyles vaskemiddel og vann inn i kompressorens innløp. To carry out the washing process Offline washing, the gas turbine must be shut down and cooled and rotated with the gas turbine starter motor, typically at 1000-1200 revolutions per minute. minute, and is washed by flushing detergent and water into the compressor inlet.
Metoden med nedstenging av turbinen for vasking under rotasjon av turbinens rotor benevnes som Krank Wash, eller Soak Wash, eller Offline vasking. The method of shutting down the turbine for washing during rotation of the turbine's rotor is called Crank Wash, or Soak Wash, or Offline washing.
Metoden Offline vasking medfører redusert driftstid for turbinen, hvilket medfører redusert produksjon, for eksempel slik som for en gassturbin kompressor-driver som for eksempel inngår i produksjonsprosessen på en offshore oljeplattform eller produksjonsplattform. The Offline washing method results in reduced operating time for the turbine, which results in reduced production, for example such as for a gas turbine compressor driver which is, for example, part of the production process on an offshore oil platform or production platform.
Metoden Online vasking utføres ved at det spyles vaskemiddel og vann inn i kompressorens innløp mens turbinen er i drift med last, typisk med kompressor turtall 8000-9000 omdreininger pr. minutt. The online washing method is carried out by flushing detergent and water into the compressor inlet while the turbine is operating with load, typically with a compressor speed of 8,000-9,000 rpm. minute.
Metoden Online Wash mens turbinen går med last må utføres hver andre til tredje dag, og har begrenset vaske-effekt innover i kompressoren, da vannet fordamper og har ingen effekt etter trinn 4-5. The Online Wash method while the turbine is running with load must be carried out every two to three days, and has a limited washing effect inside the compressor, as the water evaporates and has no effect after steps 4-5.
Typiske turbiner har 12-16 kompressortrinn. Typical turbines have 12-16 compressor stages.
Begge metodene har begrenset vaskeeffekt ved at kun de fremste skovvelradene vaskes, i det vesentlige på skovlenes fremside. Both methods have a limited washing effect in that only the leading rows of blades are washed, essentially on the front side of the blades.
Erfaringen er at når turbinen vaskes med beskrevne metoder, transporteres belegg som vaskes av fra de fremre skovlradene med kompressorens luftstrøm videre innover i kompressoren, og bygges opp som belegg på nedstrøms skovletrinn. The experience is that when the turbine is washed using the described methods, deposits that are washed off from the front rows of blades are transported by the compressor's air flow further into the compressor, and build up as deposits on downstream blade stages.
Erfaringen er videre at partikler og partikkelflak som bygger seg opp på skovlenes overflate under vasking, løsner under drift kan skade nedstrøms skovler. Experience has also shown that particles and particle flakes that build up on the surface of the vanes during washing, loosen during operation and can damage downstream vanes.
Begge metodene baseres på at det monteres dyser i kompressorens innløp, og at og vaskemiddel og varmt vann under høyt trykk spyles aksielt inn i kompressorens innløp. Both methods are based on nozzles being installed in the compressor's inlet, and detergent and hot water under high pressure being flushed axially into the compressor's inlet.
Vaskedysene, som typisk er fastmontert i kompressorens innløp, tilføres vann og vaskemiddel under høyt trykk fra en vann-vaskeenhet med en tank for vann, varme-elementer for oppvarming av vaskevann, tank for vaskemiddel, en høytrykkspumpe og relatert instrumentering og pumpemotor. The washing nozzles, which are typically fixed in the inlet of the compressor, are supplied with water and detergent under high pressure from a water-washing unit with a tank for water, heating elements for heating washing water, tank for detergent, a high-pressure pump and related instrumentation and pump motor.
Dysene er typisk utført som forstøvningsdyser, som danner svært små vanndråper som skal fukte skovvel overflater og løse opp belegg på skovvel overflater. The nozzles are typically designed as atomizing nozzles, which form very small water droplets that are supposed to wet shovel surfaces and dissolve coatings on shovel surfaces.
Svært små vanndråper har imidlertid en begrenset mekanisk vaske-effekt. Teorien er at små vanndråper ikke vil slynges ut som følge av kompressorens rotasjon, men sveve i luften og legge seg på skovlene. However, very small water droplets have a limited mechanical washing effect. The theory is that small water droplets will not be ejected as a result of the compressor's rotation, but will float in the air and settle on the blades.
Erfaringen er imidlertid at sentrifugalkraften slynger selv svært små dråper ut når de treffer de roterende skovlene. However, the experience is that the centrifugal force ejects even very small droplets when they hit the rotating vanes.
Dette medfører at skovlenes tupp overflate vaskes best, mens vaskeeffekten på overflater i skovle-roten er begrenset. This means that the tip surface of the blades is washed best, while the washing effect on surfaces in the blade root is limited.
Fordi det ved metodene Offline vasking og Online vasking oppnås vasking av kun de fremste skovvelradene, og det kun oppnås vasking av skovlenes fremside, må Offline vasking typisk utføres ca. hver to tusende time, mens Online vasking bør utføres hver tredje dag. Because the Offline washing and Online washing methods achieve washing of only the leading rows of blades, and only the front side of the blades are achieved, Offline washing typically needs to be carried out approx. every two thousand hours, while Online washing should be carried out every three days.
Ved at kun de fremre skovle-radene blir vasket, og kun på fremsiden, synker turbinens termiske virkningsgrad og akseleffekt gradvis, selv om turbinen vaskes ofte. As only the front rows of blades are washed, and only on the front side, the turbine's thermal efficiency and shaft power gradually decrease, even if the turbine is washed often.
Dette medfører at kompressor ytelse og virkningsgrad over tid gradvis reduseres og ikke kan gjenvinnes ved gjentatte vaskesykler, slik at kompressoren til slutt må overhales med utskifting av skovler, eller at kompressoren må demonteres for manuell vasking av skovlene. This means that compressor performance and efficiency gradually decrease over time and cannot be recovered by repeated washing cycles, so that the compressor must eventually be overhauled with the replacement of vanes, or that the compressor must be dismantled for manual washing of the vanes.
Dette må utføres i et spesialverksted, typisk etter 25000 timers drift. This must be carried out in a specialist workshop, typically after 25,000 hours of operation.
Beskrivelse av løsningen. Description of the solution.
Ref. Fig. 1, 2, 3, 4, 5 og 6. Ref. Fig. 1, 2, 3, 4, 5 and 6.
Løsningen baseres på at alle skovvel-radene (10) samtidig spyles med spylestrålen (9), både på skovvel (3) fremside (2) og skovvel (3) bakside (4), mens kompressor rotor roteres motsatt vei (11) av kompressor rotasjonsretningen under drift. The solution is based on all the bucket rows (10) being simultaneously flushed with the spray jet (9), both on the bucket bucket (3) front side (2) and bucket bucket (3) rear side (4), while the compressor rotor is rotated in the opposite direction (11) of the compressor the direction of rotation during operation.
De fleste moderne gassturbiner er utført med boroskop-porter (7) mellom ledeskovlene (20), for inspeksjon av skovlene (3). Most modern gas turbines are made with borescope ports (7) between the guide vanes (20), for inspection of the vanes (3).
Under drift av turbinen er boreskop-portene (7) plugget. During operation of the turbine, the borescope ports (7) are plugged.
Vaskingen forberedes ved å stanse og kjøle ned turbinen og skru ut boreskop-portenes (7) plugger, og ved å skru inn guide-plugg (13) inn i boreskop-port (3) og ved å montere en vaskelanse (6) inn i guide-plugg (13) i hver boreskop-port (7), hvor boreskop-porter (7) penetrerer kompressor ytter-vegg (23) og kompressor innvendig belegg for skovveltetning (24), og eventuelt avstivnings-ribber (25). The washing is prepared by stopping and cooling down the turbine and unscrewing the plugs of the borescope ports (7), and by screwing in the guide plug (13) into the borescope port (3) and by fitting a washing lance (6) into guide plug (13) in each borescope port (7), where borescope ports (7) penetrate the compressor outer wall (23) and compressor internal coating for bushing seal (24), and possibly stiffening ribs (25).
Vaskelansen (6) er utføres som et rør med dobbelt sett dyser (8) i enden, hvor den ene dysens (8) spylestråle (9) spyler aksielt forover mot skovvel (3) bakside (4), og den andre dysen (8) aksielt bakover mot skovvel (3) forside (2). The washing lance (6) is designed as a tube with a double set of nozzles (8) at the end, where the spray jet (9) of one nozzle (8) sprays axially forwards towards the back of the blade (3) (4), and the other nozzle (8) axially backwards towards the vane well (3) front (2).
Dysene (8) utføres og dimensjoneres spesielt for hvert enkelt skovveltrinn (10) med en geometri slik at spylestrålen (9) dekker hele skovvel (3) fremside (2) og hele skovvel (3) bakside (4). The nozzles (8) are specially designed and dimensioned for each individual blade well step (10) with a geometry so that the spray jet (9) covers the entire blade well (3) front side (2) and the entire blade well (3) rear side (4).
Dyser (8) utføres slik at spylestråle (9) er en hard stråle med store dråper, for å oppnå best mulig mekanisk vaskeeffekt av skovvel overflater (2) og (4). Spylestrålen (9) treffer skovlens (3) tupp (32) og spyler innover mot skovlens rot (33), slik at hele skovlens overflate og skovlens rot (33) vaskes. Nozzles (8) are designed so that the spray jet (9) is a hard jet with large droplets, in order to achieve the best possible mechanical washing effect of shovel surfaces (2) and (4). The spray jet (9) hits the tip (32) of the bucket (3) and washes inwards towards the root of the bucket (33), so that the entire surface of the bucket and the root of the bucket (33) are washed.
Vaskelansen (6) med dyser (8) maskineres som én komponent ut fra et smidd emne i for eksempel høy-fast Nikkel-legering, for å hindre at vaskelansens (6) deler kan løsne og falle inn i kompressoren. The wash lance (6) with nozzles (8) is machined as one component from a forged blank in, for example, high-strength nickel alloy, to prevent parts of the wash lance (6) from loosening and falling into the compressor.
Vaskelansen (6) er videre utført med en ansats (12), som styrer hvor langt aksialt inn i guide-plugg (13) vaskelansen (6) stikker. The washing lance (6) is also made with a shoulder (12), which controls how far axially into the guide plug (13) the washing lance (6) sticks.
Vaskelanse (6) er utført med en utvendig diameter (22) tilsvarende boring i guide-plugg (13), slik at når vaskelansen (6) monteres inn i guide-plugg (13) styres dyse (8) til korrekt konsentrisk posisjon mellom skovle-radene (10). En kappemutter (26) med en ansats (12) monteres til guide-plugg (13), slik at kappemutter (26) ikke presser vaskelansen (6) hardt mot innervegg og skovvel tetningsbelegg (24). Wash lance (6) is made with an external diameter (22) corresponding to the bore in the guide plug (13), so that when the wash lance (6) is fitted into the guide plug (13) the nozzle (8) is controlled to the correct concentric position between the vane -the rows (10). A cap nut (26) with a shoulder (12) is fitted to the guide plug (13), so that the cap nut (26) does not press the wash lance (6) hard against the inner wall and the vane sealing coating (24).
En fjær (30) lokaliseres mellom ansats (12) og kappe-mutter (26) slik at enden av vaskelanse (6) fjærer, og ikke presses mot kompressor innervegg og skovvel tetningsbelegg / innervegg (24) med en kraft større enn fjær (30) kompresjonskraft. A spring (30) is located between the shoulder (12) and the cap nut (26) so that the end of the washing lance (6) springs, and is not pressed against the compressor inner wall and vane sealing coating / inner wall (24) with a force greater than the spring (30) ) compression force.
Vaskeprosessen utføres ved å først tilføre vaskemiddel fra vaske-enhet (14) via slanger (21) mens rotor (1) roteres i motsatt rotasjonsretning (11) av rotasjonsretning under turbinens drift. The washing process is carried out by first supplying detergent from the washing unit (14) via hoses (21) while the rotor (1) is rotated in the opposite direction of rotation (11) of the direction of rotation during the turbine's operation.
Rotasjon av rotor (1) oppnås ved å reversere rotorens (1) rotasjonsmotor (17) som benyttes for å rotere kompressor rotor (1) under boreskop-inspeksjon av skovler (3). Rotation of the rotor (1) is achieved by reversing the rotor's (1) rotation motor (17) which is used to rotate the compressor rotor (1) during borescope inspection of vanes (3).
Etter en periode, når vaskemiddelet har løst opp belegget på skovlene (3), spyles (9) deretter skovlenes fremside (2) og skovlenes bakside (4) med varmt vann under høyt trykk fra vaske-enhet (14) via slanger (21) mens turbinens rotor (1) roteres (11) med rotasjonsretning (11) motsatt av rotasjonsretningen under turbinens drift. After a period, when the detergent has dissolved the coating on the vanes (3), (9) the front side of the vanes (2) and the back of the vanes (4) are then flushed with hot water under high pressure from the washing unit (14) via hoses (21) while the turbine's rotor (1) is rotated (11) with the direction of rotation (11) opposite to the direction of rotation during the turbine's operation.
Fordi kompressorens geometri (18) er konisk, med størst diameter i innløpet (15), og fordi kompressor rotor (1) roterer motsatt vei av rotasjon under drift (11), vil vann og urenheter (16) føres ut og renne ut gjennom nedre del av kompressorens innløp (19), og ut i gassturbin innløpsplenum og dreneres ut i innløpsplenum dren. Because the geometry of the compressor (18) is conical, with the largest diameter in the inlet (15), and because the compressor rotor (1) rotates in the opposite direction of rotation during operation (11), water and impurities (16) will be carried out and flow out through the lower part of the compressor inlet (19), and out into the gas turbine inlet plenum and is drained out into the inlet plenum drain.
Detter medfører at vann og urenheter ikke føres videre innover i kompressoren. This means that water and impurities are not carried further into the compressor.
Etter avsluttet spyleprosess gjentas prosessen inntil ønsket renhet på skovlenes (3) fremside (2) og skovlenes (3) bakside (4) er oppnådd. After the flushing process is finished, the process is repeated until the desired cleanliness on the front side (2) of the vanes (3) and the back side (4) of the vanes (3) is achieved.
Ved vasking av begge sider (2) og (4) av kompressorens skovler (3), og ved vasking av alle kompressorens skovveltrinn (10), opprettholdes kompressorens ytelse og virkningsgrad bedre enn ved tradisjonell vasking, hvor kompressorens ytelse og virkningsgrad gradvis reduseres fordi kun de fremste skovlene delvis vaskes. By washing both sides (2) and (4) of the compressor's vanes (3), and by washing all the compressor's vane stages (10), the compressor's performance and efficiency are maintained better than with traditional washing, where the compressor's performance and efficiency are gradually reduced because only the foremost vanes are partially washed.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO20190920A NO345755B1 (en) | 2019-07-24 | 2019-07-24 | Method for washing turbocharger rotating blades |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO20190920A NO345755B1 (en) | 2019-07-24 | 2019-07-24 | Method for washing turbocharger rotating blades |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO20190920A1 NO20190920A1 (en) | 2021-01-25 |
| NO345755B1 true NO345755B1 (en) | 2021-07-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO20190920A NO345755B1 (en) | 2019-07-24 | 2019-07-24 | Method for washing turbocharger rotating blades |
Country Status (1)
| Country | Link |
|---|---|
| NO (1) | NO345755B1 (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4046155A (en) * | 1974-12-30 | 1977-09-06 | Stal-Laval Turbin Ab | Washing apparatus for a compound compressor |
| JPS59503A (en) * | 1982-06-25 | 1984-01-05 | Toshiba Corp | Corrosion prevention of turbine blade |
| US5944483A (en) * | 1995-12-29 | 1999-08-31 | Asea Brown Boveri Ag | Method and apparatus for the wet cleaning of the nozzle ring of an exhaust-gas turbocharger turbine |
| EP1138955A2 (en) * | 2000-03-29 | 2001-10-04 | Watson Cogeneration Company | Method and apparatus for increasing the efficiency of a multi-stage compressor |
| US20030133789A1 (en) * | 2002-01-17 | 2003-07-17 | Bernhard Kuesters | Axial compressor and method of cleaning an axial compressor |
| EP1388656A2 (en) * | 2002-08-09 | 2004-02-11 | Mitsubishi Heavy Industries, Ltd. | Extraneous matter removing system for turbine |
| TWI324537B (en) * | 2005-05-20 | 2010-05-11 | Gas Turbine Efficiency Ab | Method and apparatus for cleaning a turbofan gas turbine engine |
| GB2484337A (en) * | 2010-10-08 | 2012-04-11 | Uyioghosa Leonard Igie | A compressor washing apparatus and associated nozzle for a gas turbine engine |
-
2019
- 2019-07-24 NO NO20190920A patent/NO345755B1/en not_active IP Right Cessation
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4046155A (en) * | 1974-12-30 | 1977-09-06 | Stal-Laval Turbin Ab | Washing apparatus for a compound compressor |
| JPS59503A (en) * | 1982-06-25 | 1984-01-05 | Toshiba Corp | Corrosion prevention of turbine blade |
| US5944483A (en) * | 1995-12-29 | 1999-08-31 | Asea Brown Boveri Ag | Method and apparatus for the wet cleaning of the nozzle ring of an exhaust-gas turbocharger turbine |
| EP1138955A2 (en) * | 2000-03-29 | 2001-10-04 | Watson Cogeneration Company | Method and apparatus for increasing the efficiency of a multi-stage compressor |
| US20030133789A1 (en) * | 2002-01-17 | 2003-07-17 | Bernhard Kuesters | Axial compressor and method of cleaning an axial compressor |
| EP1388656A2 (en) * | 2002-08-09 | 2004-02-11 | Mitsubishi Heavy Industries, Ltd. | Extraneous matter removing system for turbine |
| TWI324537B (en) * | 2005-05-20 | 2010-05-11 | Gas Turbine Efficiency Ab | Method and apparatus for cleaning a turbofan gas turbine engine |
| GB2484337A (en) * | 2010-10-08 | 2012-04-11 | Uyioghosa Leonard Igie | A compressor washing apparatus and associated nozzle for a gas turbine engine |
Also Published As
| Publication number | Publication date |
|---|---|
| NO20190920A1 (en) | 2021-01-25 |
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