CN107725116A - A kind of TRT turbines with wear-resistant anti-corrosion nano coating - Google Patents
A kind of TRT turbines with wear-resistant anti-corrosion nano coating Download PDFInfo
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- CN107725116A CN107725116A CN201711227501.3A CN201711227501A CN107725116A CN 107725116 A CN107725116 A CN 107725116A CN 201711227501 A CN201711227501 A CN 201711227501A CN 107725116 A CN107725116 A CN 107725116A
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- turbines
- nano coating
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- 238000005260 corrosion Methods 0.000 title claims abstract description 48
- 239000002103 nanocoating Substances 0.000 title claims abstract description 40
- 239000011241 protective layer Substances 0.000 claims abstract description 25
- 239000002131 composite material Substances 0.000 claims abstract description 18
- 239000010410 layer Substances 0.000 claims abstract description 17
- 239000000919 ceramic Substances 0.000 claims abstract description 6
- 238000007750 plasma spraying Methods 0.000 claims description 12
- 238000005507 spraying Methods 0.000 claims description 11
- 229910010293 ceramic material Inorganic materials 0.000 claims description 6
- 230000007547 defect Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010304 firing Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000002086 nanomaterial Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 description 28
- 239000011248 coating agent Substances 0.000 description 21
- 239000000843 powder Substances 0.000 description 16
- 239000007789 gas Substances 0.000 description 15
- 230000007797 corrosion Effects 0.000 description 12
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 12
- 238000005299 abrasion Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 11
- 239000007921 spray Substances 0.000 description 11
- 239000002245 particle Substances 0.000 description 9
- 230000008021 deposition Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- 239000000428 dust Substances 0.000 description 5
- 229910052746 lanthanum Inorganic materials 0.000 description 5
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 239000003034 coal gas Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000003026 anti-oxygenic effect Effects 0.000 description 2
- 239000012159 carrier gas Substances 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000009738 saturating Methods 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 241000370738 Chlorion Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
- F01D5/288—Protective coatings for blades
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/134—Plasma spraying
-
- 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
- F01D25/005—Selecting particular materials
-
- 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
- F01D25/007—Preventing corrosion
-
- 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
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
- F01D5/282—Selecting composite materials, e.g. blades with reinforcing filaments
-
- 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
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
- F01D5/284—Selection of ceramic materials
-
- 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
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/30—Manufacture with deposition of material
- F05D2230/31—Layer deposition
- F05D2230/312—Layer deposition by plasma spraying
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/90—Coating; Surface treatment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/95—Preventing corrosion
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Composite Materials (AREA)
- Coating By Spraying Or Casting (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The invention discloses a kind of TRT turbines with wear-resistant anti-corrosion nano coating, including TRT to put down movable blade and stator blade, and the outer surface of the TRT moving vane of turbine and stator blade is provided with one layer of nanometer protective layer.The TRT turbines of wear-resistant anti-corrosion nano coating of the invention; by setting the layer protective layer being made up of nano material in the movable vane of TRT turbines and stator blade surface; nano coating is that have wear-resistant, acid-alkali-corrosive-resisting, high temperature resistant, the functional coat of the nanostructured of anti-cavitation using prepared by Nano-Ceramic Composites; the defects of improving prior art; service life brought up to the service life and using effect for for more than 36 months, being significantly longer than TRT turbines in the prior art by 7 10 months；And allow the prolonged continuous firing of TRT turbines, production cost is reduced, the cost of overhaul is reduced, improves operating efficiency.
Description
Technical field
The present invention relates to a kind of blast furnace top pressure recovery gas turbine machine TRT of steel mill, more particularly to one kind is with wear-resisting
Damage the TRT turbines of anti-corrosion nano coating.
Background technology
TRT is Top Gas Pressure Recovery Turbine english abbreviations, and Chinese is translated into " blast furnace top pressure recovery
Turbine TRT ".Be it is a kind of using blast furnace gas top pressure come the device to be generated electricity, the technology is to utilize high pressure coal air pressure
The turbine rotor that power can drag TRT carries out rotation work done, and converts mechanical energy into electric energy by generator connected in series.Work
Making rotating speed, (the first rank critical revolutions are designed as 1800rpm for 3000rpm；Second-order critical revolutions are designed as 6400rpm).
Blade is the major part of rotor-support-foundation system, blade material 2Cr13, and carries out toning matter processing.TRT blades exist
At a high speed, worked containing blast furnace dust and having under conditions of etchant gas medium, operating mode is complicated, the work period factory.After removing dust, greatly
Part stove dirt is removed, but still remain in gas phase media a number of stove dirt, aqueous vapor and because blast furnace raw material is impure and
Caused a variety of sour gas, such as H2S、HCl、CO2Deng.Due to the presence washed away and corroded, some corrosion in gas-pipe line are produced
Thing can be also mixed in coal gas, admittedly-vapour-multiphase flow formed that is gas for eventually entering into TRT devices；Blast furnace gas enters TRT devices
Afterwards, because expansion work, temperature gradually reduce, sour gas is dissolved in condensate in coal gas, can form one layer in blade surface
Acid moisture film, to the permeable corrosion of blade surface.
Stove dirt can produce skimming wear and direct projection abrasion under air-flow drive when flowing through metal surface.Skimming wear is main
It is as caused by microcosmic cutting, one of groove can be left after parts surface abrasion.Direct projection abrasion is mainly metallic material parts table
Face fatigue wear, dust is pressed into be formed in metallic material parts is plastically deformed pit one by one, in a large amount of soot particle repeated actions
Under, pit forms the thin layer of a plastic deformation gradually, when the service load of soot particle exceedes the ultimate strength of this plastic deformation,
This layer surface is destroyed, dropped, so as to form abrasion.
The too fast abrasion of blade, corrosion can be negatively affected to unit, and it is showed mainly for example：Unit efficiency is too fast
Ground reduces, blade wears too quickly and corrodes and brings body vibration to rotor-support-foundation system excessive (vibration of rotor-support-foundation system is to blade meeting
Certain negative effect is produced, and reduces its service life).Particularly under coal gas dry dust removal operational mode, gas temperature
Compared with improving nearly dynamic and static blade of chlorion heavy corrosion turbine 150 DEG C, separated out in coal gas under wet dust removal pattern so that
Movable vane piece service life was at 8 months or so.Due to the exception of blade, often force unit can not normal operation.In summary, it is existing
The defects of some blast furnace top pressure recovery gas turbine machine TRT efficiency is low, and service life is short.
The content of the invention
The technical problems to be solved by the invention are present in the TRT turbines for above-mentioned steel mill in the prior art
A kind of defect, there is provided TRT turbines with wear-resistant anti-corrosion nano coating.
To achieve the above object, the present invention uses following technical scheme：
The present invention provides a kind of TRT turbines with wear-resistant anti-corrosion nano coating, including TRT moving vane of turbine
And stator blade, the outer surface of the TRT moving vane of turbine and stator blade are provided with one layer of nanometer protective layer.
Further, on the described TRT turbines with wear-resistant anti-corrosion nano coating, the movable vane piece surface
Nanometer protective layer use plasma spraying WC nano ceramic material coatings.
Further preferably, on the described TRT turbines with wear-resistant anti-corrosion nano coating, the movable vane
The thickness of the nanometer protective layer on piece surface is 200-300 μm.
Further, on the described TRT turbines with wear-resistant anti-corrosion nano coating, the stator blade surface
Nanometer protective layer use supersonic spray coating nano ceramics-metallic composite Co-WC coatings.
Further preferably, on the described TRT turbines with wear-resistant anti-corrosion nano coating, the stator blade
The thickness of the nanometer protective layer on piece surface is 150-240 μm.
Further, on the described TRT turbines with wear-resistant anti-corrosion nano coating, the TRT turbines
Turbine is divided into 2 grades (i.e. 2 grades of movable vane pieces, stator blades of 2 grades of adjustable-angles), wherein：
1st grade of stator blade number：20-30 pieces；2nd grade of stator blade number：20-30 pieces；
1st grade of movable vane piece number：20-30 pieces；2nd grade of movable vane piece number：20-30 pieces.
Further, on the described TRT turbines with wear-resistant anti-corrosion nano coating, movable vane piece, stator blade
Different use demands prepares nano coating using different original materials, technology, to reach the synthesis usability of blower fan
Can, resist the failure under condition of work.
Further, on the described TRT turbines with wear-resistant anti-corrosion nano coating, the nanometer applies protection
Layer be it is a kind of using prepared by Nano-Ceramic Composites have wear-resistant, acid-alkali-corrosive-resisting, high temperature resistant, the nanometer of anti-cavitation
The functional coat of structure.
Further, on the described TRT turbines with wear-resistant anti-corrosion nano coating, the nanometer protective layer
To be doped with nano lanthanum oxide (La2O3) particle composite coating, the addition of the nano lanthanum oxide is the 3- of composite coating
10%.
It is further preferred that the nanometer protective layer on the movable vane piece surface is using plasma spraying doping 8-10% nano oxygens
Change the WC nano ceramic materials of lanthanum particle.
It is further preferred that the nanometer protective layer on the stator blade surface is using supersonic spray coating doping 3-5% nano oxygens
Change nano ceramics-metallic composite Co-WC coatings of lanthanum particle.
The present invention uses above-mentioned technical proposal, compared with prior art, has the following technical effect that：
TRT turbines provided by the invention with wear-resistant anti-corrosion nano coating, pass through the movable vane in TRT turbines
And stator blade surface sets the layer protective layer being made up of nano material, its service life was up to more than 36 months, and turbine is not
With scrapping, while improve generated energy；It is significantly longer than the service life and using effect of TRT turbines in the prior art；And make
TRT turbines can prolonged continuous firing, reduce production cost, improve operating efficiency, improve prior art
The defects of, fill up the blank of home and abroad.
Brief description of the drawings
Fig. 1 is the movable vane piece for the TRT turbines that the present invention has wear-resistant anti-corrosion nano coating, stator blade structure chart；
Fig. 2 is the overlooking structure figure of the movable vane piece for the TRT turbines that the present invention has wear-resistant anti-corrosion nano coating；
Fig. 3 is the structure chart of the wear-resistant anti-corrosion nano coating of the preferred embodiment of the present invention；
Fig. 4 is spray power and the linear relationship chart of hardness；
Fig. 5 is spray power and the linear relationship chart of bond strength；
Fig. 6 is working gas flow and the linear relationship chart of powder deposition；
Fig. 7 be without spray coated blade run 10 months it is offline after corrosion, wear situation；Wherein, Fig. 7 a-7d points
Wei not be without spray coated blade surface schematic diagram；
Fig. 8 is situation when being overhauled after product of the present invention is run 12 months；Wherein, Fig. 8 a-8d are respectively through spray coated leaf
Piece schematic surface.
Embodiment
The present invention is described in more detail below by specific embodiment, for a better understanding of the present invention,
But following embodiments are not intended to limit the scope of the invention.
As shown in Figure 1-2, the embodiments of the invention provide a kind of TRT turbines with wear-resistant anti-corrosion nano coating
The movable vane piece 3 being arranged on machine, including TRT turbines on main shaft 1 and the stator blade 4 being arranged on casing 2, on TRT turbines
Movable vane piece 3 and the outer surface of stator blade 4 be provided with one layer of nanometer protective layer 5, this nanometer of stopping off 5 is a kind of use
There is wear-resistant, acid-alkali-corrosive-resisting, high temperature resistant, the feature of the nanostructured of anti-cavitation prepared by Nano-Ceramic Composites
Coating.This nanometer of protective layer 5 has well wear-resistant, corrosion-resistant, high temperature resistant, the performance of anti-cavitation, in the dynamic of TRT turbines
After blade 3 and the outer surface of stator blade 4 add nanometer protective layer 5, the service life that can make to put down saturating machine reaches more than 36 months,
Be significantly longer than the service life that TRT in the prior art puts down machine so that TRT turbines can prolonged continuous firing, reduce
Production cost, improves operating efficiency, the defects of improving prior art.
On the TRT turbines that the present invention has wear-resistant anti-corrosion nano coating, movable vane piece 3, stator blade 4 are different
Use demand prepares nano coating using different original materials, technology, to reach the synthesis performance of blower fan, resists
Failure under condition of work.Need to meet that the harsh technical requirements of TRT are as follows：1), blade spraying coating process does not allow to blade root
Portion and other positions produce secondary stress；2), do not allow to destroy blade profile after spraying and the original of blade curve is set
Count precision；3), turbine will not cause blade coatings to come off at normal operation (n=3000rpm)；4), ensure that blade is being transported
Reliable and stable in row, safety.
On the basis of above-mentioned technical proposal, on the TRT turbines that this has wear-resistant anti-corrosion nano coating, TRT
Turbine turbine is divided into 2 grades, i.e. 2 grades of movable vane pieces, the stator blade of 2 grades of adjustable-angles, wherein：1st grade of stator blade number：20-
30；2nd grade of stator blade number：20-30 pieces；1st grade of movable vane piece number：20-30 pieces；2nd grade of movable vane piece number：20-30 pieces.
As a preferred embodiment of the present invention, on the TRT turbines that this has wear-resistant anti-corrosion nano coating,
The nanometer protective layer on the surface of movable vane piece 3 uses plasma spraying WC nano ceramic material coatings, and the nanometer on the surface of movable vane piece 3 is protected
The thickness of sheath is 200-300 μm, preferably 220-280 μm, more preferably 240-260 μm.Further, since WC's is anti-oxidant
Ability, therefore the good metal alloy powders of antioxygenic property (such as cobalt-based, Ni-based) can be used to do integument or Binder Phase, with
This improves the antioxygenic property of the WC nano ceramics protective layers.
As another preferred embodiment of the present invention, as shown in figure 3, there is wear-resistant corrosion resistant in the TRT turbines
Losing also includes the metal back layer 7, the intermediate layer 6 that are sprayed on the surface of movable vane piece 3 successively, gold on the TRT turbines of nano coating
Category bottom 7 is using the Ni sills for including Ni, Cr, Al, if the trade mark is 0Cr17Ni7Al materials；Intermediate layer 6, which uses, to be included
Ni, Cr, Al, W Ni sills, its thickness are respectively 80-100 μm, 50-80 μm, such as Ni-Al-Hf-Cr-W systems alloy material
Matter, the present invention employed in Ni sills it is commercially available；And WC nano ceramic materials are then sprayed on the upper of intermediate layer 6
Surface.
The technology that plasma spraying technology is a kind of material surface strengthening used by the present embodiment and surface is modified, it is adopted
By the use of plasma-arc as thermal source, the materials such as ceramics, alloy, metal are heated to melting or semi-molten state, and to spray at a high speed
The superficial layer of adhesion-tight is formed to the workpiece surface by pretreatment, imparting matrix surface is wear-resisting, anti-corrosion, high temperature resistant oxygen
The performances such as change, electric insulation, heat-insulated, radiation proof, anti-attrition and sealing.The technical characterstic is mainly manifested in：Superelevation temperature characteristics, be easy into
The spraying of row materials with high melting point, the speed of jet particle is high, and coating is fine and close, and adhesion strength is high, and work is used as using inert gas
Gas, sprayed on material is not oxidizable, and operating efficiency is high, and substrate temperature is low, and matrix is without deformation.Pass through the control of plasma process condition
System reaches the high-bond with base material, and the process conditions of spraying include hydrogen and argon flow amount, spray distance, spray angle, confession
The control of powder rate and the flow of carrier gas, the power of electric arc, the adjustment control of Current Voltage, the flow of plasma water and substrate temperature
System, to prepare high-bond, high abrasion, the protective layer for fully meeting requirement.
It is saturating in the TRT with wear-resistant anti-corrosion nano coating as another more preferred embodiment of the present invention
On flat machine, the nanometer protective layer 5 on the surface of stator blade 4 is using Supersonic Plasma Spraying nano ceramics-metallic composite Co-
WC coatings, the thickness of the nanometer protective layer on the stator blade surface is 150-240 μm, preferably 160-210 μm, more preferably 180-
200μm。
Nano ceramics-metallic composite Co-WC powder that the present embodiment uses is by WC nano-particles and Co metal phases
The alloy form of formation, prepared coating have high rigidity, high-wearing feature, decay resistance, high tenacity etc..The coating is hard
While degree improves, toughness also improves therewith.Using supersonic spray coating technology, reached and base material by the control of process conditions
High-bond, the high-bond with base material is reached by the control of process conditions, the technological parameter of spraying includes oxygen and nitrogen
Ratio and total flow, the flow of kerosene stock, the temperature for powder rate and carrier gas condition, spray distance, spray angle and matrix
Control, prepares the coating of excellent combination property, resists the failure of blade in the work environment.
As a preferred embodiment of the invention, on the TRT turbines that this has wear-resistant anti-corrosion nano coating,
The nanometer protective layer is to be doped with the nano lanthanum oxide (La that particle diameter is 60-100nm2O3) composite coating, it is described nano oxidized
The addition of lanthanum is the 3-10% of composite coating, and the composite coating high temperature of dopen Nano lanthana is characterized using X-ray diffraction
Micro-structural before and after fretting wear, with reference to the friction and wear mechanics of composite coating, result of study shows, is received using plasma spraying
The movable vane piece of rice lanthanum oxide doping WC nano ceramic materials, the hardness and abrasion resistance properties of the composite coating on its surface are in nano oxygen
Change preferable, coefficient of friction 0.12 when lanthanum content is 6.5%；Using the nano oxidized lanthanum doped nano ceramics-gold of supersonic spray coating
Belong to composite Co-WC stator blade, the hardness and abrasion resistance properties of the composite coating on its surface are in nano lanthanum oxide content
It is preferable when 3.5%, coefficient of friction 0.1.By introducing nanometer La2O3Movable vane piece and the tribology of stator blade can effectively be improved
Performance, its abrasion mechanism are mainly the synergic wear of abrasive wear, adhesive wear and oxidation corrosion resistant abrasion.
As shown in Figure 4 and Figure 5, bond strength of the plasma spraying power to coating deposition, hardness and coating and matrix
All had a certain impact etc. performance.When plasma spraying power is too small, powder particle is not reaching to melting or semi-molten state, this
The splashing for increasing powder is lost, causes powder deposition low, the adhesion of coating and matrix is small, and coating structure is loose, hole
Degree is big, and therefore, the hardness and bond strength of coating all can be relatively low.
With the increase of plasma spraying power, powder deposition also increases, and powder can reach complete molten condition, applies
The hardness and density of layer are significantly improved, and therefore, the bond strength of coating also reaches optimum state.And work as plasma spraying work(
When rate is excessive, after powder particle fusing, because temperature is too high, amount of powder gasification, Powder Oxidation aggravates, and causes the combination of coating
Intensity declines.It can also be seen that during excessive plasma spraying power, coating hardness and bond strength can all decline Fig. 4 and Fig. 5.
As shown in fig. 6, in thermal spraying, the flow of working gas is one of most important parameter, and it is directly influenced most
Whole spraying effect.Powder deposition increased with the increase of gas flow, but when flow is excessive, powder is a large amount of
Air-flow take away, cause deposition to decline, therefore, the powder deposition that rational gas flow influences, similarly have influence on painting
The porosity of layer.
There is the TRT turbines of wear-resistant anti-corrosion nano coating as test group using the present invention, with uncoated wear-resistant resistance to
The TRT turbines for corroding nano coating are control group, carry out corrosion-resistant, abrasion resistance properties test respectively：
Without spray coated blade run 10 months it is offline after corrosion, wear situation as shown in fig. 7, by Fig. 7 a-7d institutes
Show that the corrosion, wear situation of blade understands that blade is overlooked, serious wear, unit can not normal operation so that existing to be not coated with
Cover the blast furnace top pressure recovery gas turbine machine TRT efficiency of wear-resistant anti-corrosion nano coating is low, and service life is short etc..
Such as Fig. 8 when having a case that the blade of wear-resistant anti-corrosion nano coating overhauls after running 12 months using the present invention
Shown, from the blade situation shown in accompanying drawing 8a-8d, for blade surface without obvious corrosion and wear phenomenon, blade is intact, can be after
Continuous to use, its service life was brought up to more than 36 months by existing 7-10 months, and turbine does not have to scrap, and improves simultaneously
Generated energy.
The specific embodiment of the present invention is described in detail above, but it is intended only as example, it is of the invention and unlimited
It is formed on particular embodiments described above.To those skilled in the art, it is any to the equivalent modifications that carry out of the present invention and
Substitute also all among scope of the invention.Therefore, the impartial conversion made without departing from the spirit and scope of the invention and
Modification, all should be contained within the scope of the invention.
Claims (7)
1. a kind of TRT turbines with wear-resistant anti-corrosion nano coating, including TRT put down movable blade and stator blade, its
It is characterised by, the outer surface of the TRT moving vane of turbine and stator blade is provided with one layer of nanometer protective layer.
2. the TRT turbines according to claim 1 with wear-resistant anti-corrosion nano coating, it is characterised in that described
The nanometer protective layer on movable vane piece surface uses plasma spraying WC nano ceramic materials.
3. the TRT turbines according to claim 2 with wear-resistant anti-corrosion nano coating, it is characterised in that described
The thickness of the nanometer protective layer on movable vane piece surface is 200-300 μm.
4. the TRT turbines according to claim 1 with wear-resistant anti-corrosion nano coating, it is characterised in that described
The nanometer protective layer on stator blade surface uses supersonic spray coating nano ceramics-metallic composite Co-WC.
5. the TRT turbines according to claim 4 with wear-resistant anti-corrosion nano coating, it is characterised in that described
The thickness of the nanometer protective layer on stator blade surface is 150-240 μm.
6. the TRT turbines according to claim 1 with wear-resistant anti-corrosion nano coating, it is characterised in that described
TRT turbine turbines are divided into 2 grades, wherein：
1st grade of stator blade number：20-30 pieces；2nd grade of stator blade number：20-30 pieces；
1st grade of movable vane piece number：20-30 pieces；2nd grade of movable vane piece number：20-30 pieces.
7. the TRT turbines according to claim 1 with wear-resistant anti-corrosion nano coating, it is characterised in that described
Nanometer stopping off is that a kind of have wear-resistant, acid-alkali-corrosive-resisting, high temperature resistant, anti-using prepared by Nano-Ceramic Composites
The functional coat of the nanostructured of cavitation.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111020576A (en) * | 2019-12-24 | 2020-04-17 | 上海英佛曼纳米科技股份有限公司 | Wear-resistant nano coating for supporting roller of burr pressing machine |
| CN116713166A (en) * | 2023-06-08 | 2023-09-08 | 山东钢铁集团日照有限公司 | Preparation method of TRT blade heterogeneous coating |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002106301A (en) * | 2000-09-29 | 2002-04-10 | Toshiba Corp | Component for steam turbine and steam turbine having the same |
| CN101008324A (en) * | 2006-12-22 | 2007-08-01 | 陕西鼓风机（集团）有限公司 | Surface composite coating of turbomachine rotor blade and preparation method thereof |
| CN101191225A (en) * | 2006-11-22 | 2008-06-04 | 宝山钢铁股份有限公司 | Antiseptic wearable coat and coating method thereof |
| US20170009591A1 (en) * | 2014-02-14 | 2017-01-12 | Siemens Aktiengesellschaft | Compressor blade or vane having an erosion-resistant hard material coating |
| CN207660649U (en) * | 2017-11-29 | 2018-07-27 | 上海英佛曼纳米科技股份有限公司 | A kind of TRT turbines with wear-resistant anti-corrosion nano coating |
-
2017
- 2017-11-29 CN CN201711227501.3A patent/CN107725116A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002106301A (en) * | 2000-09-29 | 2002-04-10 | Toshiba Corp | Component for steam turbine and steam turbine having the same |
| CN101191225A (en) * | 2006-11-22 | 2008-06-04 | 宝山钢铁股份有限公司 | Antiseptic wearable coat and coating method thereof |
| CN101008324A (en) * | 2006-12-22 | 2007-08-01 | 陕西鼓风机（集团）有限公司 | Surface composite coating of turbomachine rotor blade and preparation method thereof |
| US20170009591A1 (en) * | 2014-02-14 | 2017-01-12 | Siemens Aktiengesellschaft | Compressor blade or vane having an erosion-resistant hard material coating |
| CN207660649U (en) * | 2017-11-29 | 2018-07-27 | 上海英佛曼纳米科技股份有限公司 | A kind of TRT turbines with wear-resistant anti-corrosion nano coating |
Non-Patent Citations (1)
| Title |
|---|
| 蒋清亮: ""工程材料与热处理"", 31 August 2011, 北京邮电大学出版社, pages: 270 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111020576A (en) * | 2019-12-24 | 2020-04-17 | 上海英佛曼纳米科技股份有限公司 | Wear-resistant nano coating for supporting roller of burr pressing machine |
| CN116713166A (en) * | 2023-06-08 | 2023-09-08 | 山东钢铁集团日照有限公司 | Preparation method of TRT blade heterogeneous coating |
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