CN109162774B - Internal insulation board for exhaust diffusion section of gas turbine - Google Patents

Internal insulation board for exhaust diffusion section of gas turbine Download PDF

Info

Publication number
CN109162774B
CN109162774B CN201811006520.8A CN201811006520A CN109162774B CN 109162774 B CN109162774 B CN 109162774B CN 201811006520 A CN201811006520 A CN 201811006520A CN 109162774 B CN109162774 B CN 109162774B
Authority
CN
China
Prior art keywords
ceramic fiber
percentage
balance
mass
gas turbine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201811006520.8A
Other languages
Chinese (zh)
Other versions
CN109162774A (en
Inventor
冷盼
丁一
赵俊杰
韩欣
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.)
Jiangsu Huaqiang New Energy Technology Co ltd
Original Assignee
Jiangsu Huaqiang New Energy Technology Co ltd
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 Jiangsu Huaqiang New Energy Technology Co ltd filed Critical Jiangsu Huaqiang New Energy Technology Co ltd
Priority to CN201811006520.8A priority Critical patent/CN109162774B/en
Publication of CN109162774A publication Critical patent/CN109162774A/en
Application granted granted Critical
Publication of CN109162774B publication Critical patent/CN109162774B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • F01D25/30—Exhaust heads, chambers, or the like
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
    • C04B35/565—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/62227—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products obtaining fibres
    • C04B35/62231—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products obtaining fibres based on oxide ceramics
    • C04B35/62236—Fibres based on aluminium oxide
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/62227—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products obtaining fibres
    • C04B35/62272—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products obtaining fibres based on non-oxide ceramics
    • C04B35/62277—Fibres based on carbides
    • C04B35/62281—Fibres based on carbides based on silicon carbide
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/04—Non-macromolecular additives inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/06—Non-macromolecular additives organic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
    • C09J4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09J159/00 - C09J187/00
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • 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
    • F01D25/08—Cooling; Heating; Heat-insulation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Metallurgy (AREA)
  • Inorganic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Nanotechnology (AREA)
  • Laminated Bodies (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

The invention relates to an inner heat-insulation plate for an exhaust diffusion section of a gas turbine, and belongs to the technical field of gas turbines. The inner heat-insulation plate for the exhaust diffusion section of the gas turbine comprises an inner protective plate, ceramic fiber cloth, at least two layers of ceramic fiber cotton and an outer protective plate which are sequentially bonded by a binder; the ceramic fiber cloth is formed by interweaving ceramic fiber warp yarns and shaping weft yarns; the inner heat-insulation plate for the exhaust diffusion section of the gas turbine, disclosed by the invention, has the advantages that through the matching of the two metal guard plates, the ceramic fiber cloth and the multilayer ceramic fiber cotton, the corrosion resistance is greatly improved, the heat-insulation performance is improved, the service life of the inner heat-insulation plate is prolonged, the operation cost is reduced, and the heat-insulation performance is improved by 100-fold and 120% relative to the traditional heat-insulation plate.

Description

Internal insulation board for exhaust diffusion section of gas turbine
Technical Field
The invention relates to an inner heat-insulation plate for an exhaust diffusion section of a gas turbine, and belongs to the technical field of gas turbines.
Background
The gas turbine is an internal combustion type power machine which takes continuously flowing gas as a working medium to drive an impeller to rotate at a high speed and converts the energy of fuel into useful work, has the simplest structure and can embody a series of advantages of small volume, light weight, quick start, little or no cooling water and the like which are peculiar to the gas turbine.
In the main flow of air and gas of the gas turbine, only the gas turbine consisting of three parts, namely a compressor, a combustion chamber and a gas turbine, circulates, and is generally called as simple circulation. Most gas turbines use a simple cycle scheme. The air compressor sucks air from the external atmospheric environment, and the air is compressed step by the axial flow type air compressor to be pressurized, and meanwhile, the air temperature is correspondingly increased; compressed air is pumped into a combustion chamber and is mixed with injected fuel to be combusted to generate high-temperature and high-pressure gas; then the gas or liquid fuel enters a turbine to do work through expansion, the turbine is pushed to drive the gas compressor and the external load rotor to rotate at a high speed, the chemical energy of the gas or liquid fuel is partially converted into mechanical work, and electric work is output. The exhaust gas from the turbine is discharged to the atmosphere to release heat naturally. Thus, the gas turbine converts the chemical energy of the fuel into thermal energy and also converts part of the thermal energy into mechanical energy. In a gas turbine, a compressor is driven by a gas turbine to perform work through expansion, and the compressor is a load of the turbine. In a simple cycle, about 1/2 to 2/3 of mechanical work from the turbine is used to drive the compressor, and the remaining about 1/3 of mechanical work is used to drive the generator. When the gas turbine is started, external power is firstly needed, a starter generally drives the gas compressor, and the gas turbine can not work independently until the mechanical power generated by the gas turbine is greater than the mechanical power consumed by the gas compressor and the external starter is tripped.
At present, the insulation board of the exhaust diffusion section of the gas turbine has poor thermal insulation performance and poor corrosion resistance, and the insulation board frequently needs to be replaced and maintained while losing heat, so that the operation cost of the gas turbine is increased.
Disclosure of Invention
The invention aims to solve the technical problem of providing an inner heat-insulating plate for an exhaust diffusion section of a gas turbine, which has good heat-insulating performance and long service life and is used for overcoming the defects of the prior art.
The technical scheme provided by the invention for solving the technical problems is as follows: an inner insulation board for an exhaust diffusion section of a gas turbine comprises an inner protection board, ceramic fiber cloth, at least two layers of ceramic fiber cotton and an outer protection board which are sequentially bonded by a binder; the inner guard plate and the outer guard plate comprise the following chemical components in percentage by mass: c: 0.06-0.09%, Mn: 0.88-1.14%, Al: 2.17-2.56%, Ni: 1.15-1.48%, Mo: 0.15-0.22%, Cr: 0.17-0.23%, Ce: 0.05-0.08%, Eu: 0.26-0.31%, Lu: 0.08-0.15% of Fe, and the balance of Fe;
the ceramic fiber cloth is formed by interweaving ceramic fiber warp yarns and shaping weft yarns; the ceramic fiber warp comprises the following chemical components in percentage by mass: BN: 6.17-8.56%, SiBN: 6.55-9.87%, C: 2.23-3.47% of Al3N4: 6.88-8.79%, AlN: 5.35-7.12%, and the balance of SiC; the shaping weft comprises the following chemical components in percentage by mass: polyester fiber: 12.24-15.56%, polyurethane fiber: 6.11-7.22%, polyacrylonitrile fiber: 3.55 to 4.26 percent of polyvinyl chloride fiber and the balance of polyvinyl chloride fiber;
the ceramic fiber cotton comprises the following chemical components in percentage by mass: aluminum chloride: 4.24-5.15%, silica: 2.17-3.56%, iron oxide: 2.12-2.77%, titanium dioxide: 1.34-5.78%, zirconia: 10.55-13.21%, magnesium chloride: 2.56-2.78%, magnesium oxide: 3.69 to 4.86 percent of alumina, and the balance of alumina.
The improvement of the technical scheme is as follows: the ceramic fiber cotton is six layers.
The improvement of the technical scheme is as follows: the thickness of the three layers of ceramic fiber cotton close to the ceramic fiber cloth is 40 mm.
The improvement of the technical scheme is as follows: the thickness of the three layers of ceramic fiber cotton close to the outer guard plate is 50 mm.
The improvement of the technical scheme is as follows: the thickness of the ceramic fiber cloth is 2 mm.
The improvement of the technical scheme is as follows: the thickness of the inner protective plate is 3mm, and the thickness of the outer protective plate is 10 mm.
The improvement of the technical scheme is as follows: the binder comprises the following components in percentage by mass: polyaluminum chloride: 4.6-6.9%, polyacrylamide: 6.6-7.9%, urethane: 5.5-6.6%, trimethylolpropane trimethacrylate: 3.1-4.4%, butyl acrylate: 3.2-4.1%, 2-hydroxy-1, 2-diphenylethanone: 2.1-3.4%, dimethylformamide: 1.6-1.9% and the balance of vinyl acetate.
The improvement of the technical scheme is as follows: the inner guard plate and the outer guard plate comprise the following chemical components in percentage by mass: c: 0.06%, Mn: 0.88%, Al: 2.17%, Ni: 1.15%, Mo: 0.15%, Cr: 0.17%, Ce: 0.05%, Eu: 0.26%, Lu: 0.08 percent, and the balance being Fe;
the ceramic fiber warp comprises the following chemical components in percentage by mass: BN: 6.17-8.56%, SiBN: 6.55%, C: 2.23% of Al3N4: 6.88%, AlN: 5.35 percent, and the balance of SiC;
the shaping weft comprises the following chemical components in percentage by mass: polyester fiber: 12.24%, polyurethane fiber: 6.11%, polyacrylonitrile fiber: 3.55 percent, and the balance being polyvinyl chloride fiber;
the ceramic fiber cotton comprises the following chemical components in percentage by mass: aluminum chloride: 4.24%, silica: 2.17%, iron oxide: 2.12%, titanium dioxide: 1.34%, zirconia: 10.55%, magnesium chloride: 2.56%, magnesium oxide: 3.69 percent, and the balance being alumina.
The improvement of the technical scheme is as follows: the inner guard plate and the outer guard plate comprise the following chemical components in percentage by mass: c: 0.09%, Mn: 1.14%, Al: 2.56%, Ni: 1.48%, Mo: 0.22%, Cr: 0.23%, Ce: 0.08%, Eu: 0.31%, Lu: 0.15%, the balance being Fe;
the ceramic fiber warp comprises the following chemical components in percentage by mass: BN: 8.56%, SiBN: 9.87%, C: 3.47% of Al3N4: 8.79%, AlN: 7.12 percent, and the balance of SiC;
the shaping weft comprises the following chemical components in percentage by mass: polyester fiber: 15.56%, polyurethane fiber: 7.22%, polyacrylonitrile fiber: 4.26 percent, and the balance being polyvinyl chloride fiber;
the ceramic fiber cotton comprises the following chemical components in percentage by mass: aluminum chloride: 5.15%, silica: 3.56%, iron oxide: 2.77%, titanium dioxide: 5.78%, zirconia: 13.21%, magnesium chloride: 2.78%, magnesium oxide: 4.86 percent and the balance of alumina.
The invention adopts the technical scheme that the method has the beneficial effects that:
(1) the inner heat-insulation plate for the exhaust diffusion section of the gas turbine has the advantages that through the matching of the two metal guard plates, the ceramic fiber cloth and the multilayer ceramic fiber cotton, the corrosion resistance is greatly improved, the heat-insulation performance is improved, the service life of the inner heat-insulation plate is prolonged, the operation cost is reduced, and the heat-insulation performance is improved by 100 plus 120% compared with that of the traditional heat-insulation plate;
(2) according to the invention, rare earth elements are added into the inner and outer guard plates of the inner insulation plate for the exhaust diffusion section of the gas turbine, so that the corrosion resistance and the mechanical property are improved, the middle ceramic fiber cloth and the multilayer ceramic fiber cotton can be effectively protected, and the service life is prolonged;
(3) the magnesium chloride and the magnesium oxide are added into the ceramic fiber cotton of the internal insulation board for the exhaust diffusion section of the gas turbine, so that the ceramic fiber cotton has the characteristics of strong fire resistance, good insulation performance, sound absorption and sound insulation performance;
(4) the inner heat-insulation plate for the exhaust diffusion section of the gas turbine has strong bonding performance of the adopted bonding agent, is not easy to age, and further prolongs the service life of the inner heat-insulation plate.
Drawings
The invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic structural diagram of an inner insulation panel for a gas turbine exhaust diffuser according to an embodiment of the present invention;
1-inner guard plate, 2-ceramic fiber cloth, 3-ceramic fiber cotton and 4-outer guard plate.
Detailed Description
Example one
The inner heat-insulation plate for the exhaust diffusion section of the gas turbine comprises an inner protective plate 1, ceramic fiber cloth 2, six layers of ceramic fiber cotton 3 and an outer protective plate 4 which are sequentially bonded by a binder; the inner guard plate 1 and the outer guard plate 4 comprise the following chemical components in percentage by mass: c: 0.06%, Mn: 0.88%, Al: 2.17%, Ni: 1.15%, Mo: 0.15%, Cr: 0.17%, Ce: 0.05%, Eu: 0.26%, Lu: 0.08 percent, and the balance being Fe;
the ceramic fiber cloth 2 is formed by interweaving ceramic fiber warp yarns and shaping weft yarns; the ceramic fiber warp comprises the following chemical components in percentage by mass: BN: 6.17-8.56%, SiBN: 6.55%, C: 2.23% of Al3N4: 6.88%, AlN: 5.35 percent, and the balance of SiC;
the shaping weft comprises the following chemical components in percentage by mass: polyester fiber: 12.24%, polyurethane fiber: 6.11%, polyacrylonitrile fiber: 3.55 percent, and the balance being polyvinyl chloride fiber;
the ceramic fiber cotton 3 comprises the following chemical components in percentage by mass: aluminum chloride: 4.24%, silica: 2.17%, iron oxide: 2.12%, titanium dioxide: 1.34%, zirconia: 10.55%, magnesium chloride: 2.56%, magnesium oxide: 3.69 percent, and the balance being alumina.
Wherein the thickness of the three layers of ceramic fiber cotton 3 close to the ceramic fiber cloth is 40 mm. The thickness of the three layers of ceramic fiber cotton 3 close to the outer guard plate is 50 mm. The thickness of the ceramic fiber cloth is 2 mm. The thickness of the inner protective plate is 3mm, and the thickness of the outer protective plate is 10 mm.
The binder comprises the following components in percentage by mass: polyaluminum chloride: 4.6%, polyacrylamide: 6.6%, urethane: 5.5%, trimethylolpropane trimethacrylate: 3.1%, butyl acrylate: 3.2%, 2-hydroxy-1, 2-diphenylethanone: 2.1%, dimethylformamide: 1.6 percent and the balance of vinyl acetate.
Example two
The inner heat-insulation plate for the exhaust diffusion section of the gas turbine comprises an inner protective plate 1, ceramic fiber cloth 2, six layers of ceramic fiber cotton 3 and an outer protective plate 4 which are sequentially bonded by a binder; the inner guard plate 1 and the outer guard plate 4 comprise the following chemical components in percentage by mass: c: 0.09%, Mn: 1.14%, Al: 2.56%, Ni: 1.48%, Mo: 0.22%, Cr: 0.23%, Ce: 0.08%, Eu: 0.31%, Lu: 0.15%, the balance being Fe;
the ceramic fiber cloth 2 is formed by ceramic fiber warp yarns and shapingInterweaving weft yarns; the ceramic fiber warp comprises the following chemical components in percentage by mass: BN: 8.56%, SiBN: 9.87%, C: 3.47% of Al3N4: 8.79%, AlN: 7.12 percent, and the balance of SiC; the shaping weft comprises the following chemical components in percentage by mass: polyester fiber: 15.56%, polyurethane fiber: 7.22%, polyacrylonitrile fiber: 4.26 percent, and the balance being polyvinyl chloride fiber;
the ceramic fiber cotton 3 comprises the following chemical components in percentage by mass: aluminum chloride: 5.15%, silica: 3.56%, iron oxide: 2.77%, titanium dioxide: 5.78%, zirconia: 13.21%, magnesium chloride: 2.78%, magnesium oxide: 4.86 percent and the balance of alumina.
Wherein the thickness of the three layers of ceramic fiber cotton 3 close to the ceramic fiber cloth is 40 mm. The thickness of the three layers of ceramic fiber cotton 3 close to the outer guard plate is 50 mm. The thickness of the ceramic fiber cloth is 2 mm. The thickness of the inner protective plate is 3mm, and the thickness of the outer protective plate is 10 mm.
The binder comprises the following components in percentage by mass: polyaluminum chloride: 6.9%, polyacrylamide: 7.9%, urethane: 6.6%, trimethylolpropane trimethacrylate: 4.4%, butyl acrylate: 4.1%, 2-hydroxy-1, 2-diphenylethanone: 3.4%, dimethylformamide: 1.9 percent, and the balance of vinyl acetate.
The present invention is not limited to the above-described embodiments. All technical solutions formed by equivalent substitutions fall within the protection scope of the claims of the present invention.

Claims (9)

1. An interior heated board for gas turbine exhaust diffuser section which characterized in that: comprises an inner guard plate, ceramic fiber cloth, at least two layers of ceramic fiber cotton and an outer guard plate which are sequentially bonded by a binder; the inner guard plate and the outer guard plate comprise the following chemical components in percentage by mass: c: 0.06-0.09%, Mn: 0.88-1.14%, Al: 2.17-2.56%, Ni: 1.15-1.48%, Mo: 0.15-0.22%, Cr: 0.17-0.23%, Ce: 0.05-0.08%, Eu: 0.26-0.31%, Lu: 0.08-0.15% of Fe, and the balance of Fe;
the ceramic fiber cloth is formed by interweaving ceramic fiber warp yarns and shaping weft yarns; the ceramicThe fiber warp comprises the following chemical components in percentage by mass: BN: 6.17-8.56%, SiBN: 6.55-9.87%, C: 2.23-3.47% of Al3N4: 6.88-8.79%, AlN: 5.35-7.12%, and the balance of SiC; the sizing weft comprises the following chemical components in percentage by mass: polyester fiber: 12.24-15.56%, polyurethane fiber: 6.11-7.22%, polyacrylonitrile fiber: 3.55 to 4.26 percent of polyvinyl chloride fiber and the balance of polyvinyl chloride fiber;
the ceramic fiber cotton comprises the following chemical components in percentage by mass: aluminum chloride: 4.24-5.15%, silica: 2.17-3.56%, iron oxide: 2.12-2.77%, titanium dioxide: 1.34-5.78%, zirconia: 10.55-13.21%, magnesium chloride: 2.56-2.78%, magnesium oxide: 3.69 to 4.86 percent of alumina, and the balance of alumina.
2. The internal insulation panel for a gas turbine exhaust diffuser of claim 1, wherein: the ceramic fiber cotton is six layers.
3. The internal insulation panel for a gas turbine exhaust diffuser of claim 2, wherein: the thickness of the three layers of ceramic fiber cotton close to the ceramic fiber cloth is 40 mm.
4. The internal insulation panel for a gas turbine exhaust diffuser of claim 3, wherein: the thickness of the three layers of ceramic fiber cotton close to the outer guard plate is 50 mm.
5. The internal insulation panel for a gas turbine exhaust diffuser of claim 4, wherein: the thickness of the ceramic fiber cloth is 2 mm.
6. The internal insulation panel for a gas turbine exhaust diffuser of claim 5, wherein: the thickness of the inner protective plate is 3mm, and the thickness of the outer protective plate is 10 mm.
7. The internal insulation panel for a gas turbine exhaust diffuser of claim 6, wherein: the adhesive comprises the following components in percentage by mass: polyaluminum chloride: 4.6-6.9%, polyacrylamide: 6.6-7.9%, urethane: 5.5-6.6%, trimethylolpropane trimethacrylate: 3.1-4.4%, butyl acrylate: 3.2-4.1%, 2-hydroxy-1, 2-diphenylethanone: 2.1-3.4%, dimethylformamide: 1.6-1.9% and the balance of vinyl acetate.
8. The internal insulation panel for a gas turbine exhaust diffuser of claim 7, wherein: the inner guard plate and the outer guard plate comprise the following chemical components in percentage by mass: c: 0.06%, Mn: 0.88%, Al: 2.17%, Ni: 1.15%, Mo: 0.15%, Cr: 0.17%, Ce: 0.05%, Eu: 0.26%, Lu: 0.08 percent, and the balance being Fe;
the ceramic fiber warp comprises the following chemical components in percentage by mass: BN: 6.17-8.56%, SiBN: 6.55%, C: 2.23% of Al3N4: 6.88%, AlN: 5.35 percent, and the balance of SiC;
the sizing weft comprises the following chemical components in percentage by mass: polyester fiber: 12.24%, polyurethane fiber: 6.11%, polyacrylonitrile fiber: 3.55 percent, and the balance being polyvinyl chloride fiber;
the ceramic fiber cotton comprises the following chemical components in percentage by mass: aluminum chloride: 4.24%, silica: 2.17%, iron oxide: 2.12%, titanium dioxide: 1.34%, zirconia: 10.55%, magnesium chloride: 2.56%, magnesium oxide: 3.69 percent, and the balance being alumina.
9. The internal insulation panel for a gas turbine exhaust diffuser of claim 7, wherein: the inner guard plate and the outer guard plate comprise the following chemical components in percentage by mass: c: 0.09%, Mn: 1.14%, Al: 2.56%, Ni: 1.48%, Mo: 0.22%, Cr: 0.23%, Ce: 0.08%, Eu: 0.31%, Lu: 0.15%, the balance being Fe;
the ceramic fiber warp comprises the following chemical components in percentage by mass: BN: 8.56%, SiBN: 9.87%, C: 3.47% of Al3N4: 8.79%, AlN: 7.12 percent, and the balance of SiC;
the sizing weft comprises the following chemical components in percentage by mass: polyester fiber: 15.56%, polyurethane fiber: 7.22%, polyacrylonitrile fiber: 4.26 percent, and the balance being polyvinyl chloride fiber;
the ceramic fiber cotton comprises the following chemical components in percentage by mass: aluminum chloride: 5.15%, silica: 3.56%, iron oxide: 2.77%, titanium dioxide: 5.78%, zirconia: 13.21%, magnesium chloride: 2.78%, magnesium oxide: 4.86 percent and the balance of alumina.
CN201811006520.8A 2018-08-30 2018-08-30 Internal insulation board for exhaust diffusion section of gas turbine Active CN109162774B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811006520.8A CN109162774B (en) 2018-08-30 2018-08-30 Internal insulation board for exhaust diffusion section of gas turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811006520.8A CN109162774B (en) 2018-08-30 2018-08-30 Internal insulation board for exhaust diffusion section of gas turbine

Publications (2)

Publication Number Publication Date
CN109162774A CN109162774A (en) 2019-01-08
CN109162774B true CN109162774B (en) 2021-05-18

Family

ID=64893462

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811006520.8A Active CN109162774B (en) 2018-08-30 2018-08-30 Internal insulation board for exhaust diffusion section of gas turbine

Country Status (1)

Country Link
CN (1) CN109162774B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1541808A1 (en) * 2003-12-11 2005-06-15 Siemens Aktiengesellschaft Turbine component with a heat- and erosion resistant coating
EP1970461A1 (en) * 2007-03-14 2008-09-17 Siemens Aktiengesellschaft Turbine part with heat insulation layer
EP2679780A1 (en) * 2012-06-28 2014-01-01 Alstom Technology Ltd Diffuser for the exhaust section of a gas turbine and gas turbine with such a diffuser
CN106762071A (en) * 2016-12-09 2017-05-31 江苏多为机械工业有限公司 A kind of automobile engine to exhaust joint and its production technology
CN107379672A (en) * 2017-07-24 2017-11-24 苏州宏久航空防热材料科技有限公司 A kind of resistant to elevated temperatures multi-layer ceramics cotton plate

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1541808A1 (en) * 2003-12-11 2005-06-15 Siemens Aktiengesellschaft Turbine component with a heat- and erosion resistant coating
EP1970461A1 (en) * 2007-03-14 2008-09-17 Siemens Aktiengesellschaft Turbine part with heat insulation layer
EP2679780A1 (en) * 2012-06-28 2014-01-01 Alstom Technology Ltd Diffuser for the exhaust section of a gas turbine and gas turbine with such a diffuser
CN106762071A (en) * 2016-12-09 2017-05-31 江苏多为机械工业有限公司 A kind of automobile engine to exhaust joint and its production technology
CN107379672A (en) * 2017-07-24 2017-11-24 苏州宏久航空防热材料科技有限公司 A kind of resistant to elevated temperatures multi-layer ceramics cotton plate

Also Published As

Publication number Publication date
CN109162774A (en) 2019-01-08

Similar Documents

Publication Publication Date Title
US6050082A (en) Intercooled gas turbine engine with integral air bottoming cycle
US7150154B2 (en) Power station
CN103742293B (en) Internal combustion engine vapor supercharging waste heat recovery system
CN100497089C (en) Fibre-reinforced metal/ceramic sheet-like composite container casing and its manufacture method
US20150233296A1 (en) Gas Turbine Energy Supplementing Systems and Heating Systems, and Methods of Making and Using the Same
GB776269A (en) A gas turbine plant
JP2016515994A (en) Silicon carbide ceramic matrix composite containing rare earth compounds
CN110173347B (en) Waste heat recycling system of coal mine in-use equipment and operation method
CN109162774B (en) Internal insulation board for exhaust diffusion section of gas turbine
CN211144758U (en) Compressed air energy storage system
TR201911234T4 (en) Charged internal combustion engine with expansion unit in a heat recovery circuit.
CN103397933A (en) Extreme heat machine and operating method thereof
CN109098953A (en) Full backheat compressed-air energy storage method and full backheat compressed-air energy-storage system
CN103912349A (en) Engine power turbine energy recovery device
JPH116602A (en) Structure of heat exchanger
CN210637165U (en) Waste heat recycling device of coal mine in-use equipment
US3102852A (en) Nuclear power plant
RU57434U1 (en) DETANDER-GENERATOR UNIT
CN110701022A (en) Compressed air energy storage system capable of efficiently utilizing low-grade heat energy and control method
CN211370556U (en) Plastic engine cover
CN103711670A (en) Feed pump system of combined cycle power station
CN218325005U (en) Thermal-insulation smoke exhaust pipe for generator set
CN219976483U (en) Hot air component for temporary furnace and control system
US5447700A (en) Autoclave cogeneration system
CN106369857A (en) First-kind thermally driven compression heat pump

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CB03 Change of inventor or designer information
CB03 Change of inventor or designer information

Inventor after: Ma Yong

Inventor after: Leng Pan

Inventor after: Ding Yi

Inventor after: Zhao Junjie

Inventor after: Han Xin

Inventor before: Leng Pan

Inventor before: Ding Yi

Inventor before: Zhao Junjie

Inventor before: Han Xin