Unlock instant, AI-driven research and patent intelligence for your innovation.

Ceramic-coated high-temperature alloy stator blade

A superalloy and static blade technology, applied in the field of ceramic-coated superalloy blades, can solve the problem that the thickness of the coating can only reach dozens of μm level, etc., to achieve superior cooling effect, improve turbine inlet temperature, and prolong service life. Effect

Active Publication Date: 2019-12-27
SHANGHAI UNIV
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Siemens patent US 2016 / 0369637 and Rolls-Royce patent US 2017 / 0096902 both proposed TBC coating schemes, respectively using the special structure of the green body to increase the adhesion of the coating, but the coating thickness of this type of TBC has a certain The limitation can only be achieved at the level of tens of μm

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Ceramic-coated high-temperature alloy stator blade
  • Ceramic-coated high-temperature alloy stator blade
  • Ceramic-coated high-temperature alloy stator blade

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] In this example, see Figure 3 ~ Figure 7, a ceramic-covered superalloy static blade, comprising a superalloy body 1, a ceramic composite material transition layer 3 and a ceramic layer 4 are sequentially bonded on the surface of the superalloy body 1, so that the ceramic composite material transition layer 3 is positioned on the superalloy body 1 Between the ceramic layer 4 and the intermediate material layer for buffering, energy conduction and force transmission functions, the superalloy body 1, the ceramic composite material transition layer 3 and the ceramic layer 4 form an integrated composite material stator blade, and the integrated composite material The superalloy cooling pipe network 2 is set in the stationary blade, and the superalloy cooling pipe network 2 passes through the superalloy body 1, the ceramic composite material transition layer 3 and the ceramic layer 4 to form a heat flow transmission channel; the superalloy body 1 has a cast The hollow protru...

Embodiment 2

[0044] This embodiment is basically the same as Embodiment 1, especially in that:

[0045] In this embodiment, corresponding hollow protrusions 6 are cast at the positions on the surface of the superalloy body 1 corresponding to the cooling holes 5 in the ceramic layer 4 , forming a cross-shaped cooling channel. The layout of the superalloy cooling pipe network 2 fully considers the distribution of blade cooling, and the position where the pipes are distributed is the position where the outermost ceramic layer is drilled with cooling holes to form a complete cooling system.

Embodiment 3

[0047] This embodiment is basically the same as the previous embodiment, and the special features are:

[0048] In this embodiment, in this embodiment, see Figure 3 ~ Figure 7 , the superalloy blank 1 and the superalloy cooling pipe network 2 are structurally formed by 3D printing, and 3D printing can realize rapid manufacturing of complex spatial structures. In this embodiment, the connection between the superalloy blank body 1 and the superalloy cooling pipe network 2 is not limited to welding, but an integral cooling cavity is formed by additive manufacturing method, and the internal stress is eliminated by the heat treatment process at the same time. It can meet the diverse manufacturing needs of different ceramic-covered superalloy stator blades.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a ceramic-coated alloy stator blade. The ceramic-coated alloy stator blade comprises a high-temperature alloy green body, a high-temperature alloy cooling pipe network, a ceramic composite material transition layer and a ceramic layer, wherein the high-temperature alloy green body is casted and formed by a cobalt-based or nickel-based high-temperature alloy, the alloy greenbody is provided with a cooling channel, convex frames are casted at cooling holes at the surface of the channel, the cooling pipe network is woven into a net shape from high-temperature alloy cooling pipes with the same material, and the convex frames and the net structure are connected to form a layer of structure suspended outside the green body. The ceramic transition layer is sprayed onto the green body and the net structure, the ceramic layer, the transition layer, the net structure and the high-temperature alloy green body form the stator blade, the net structure may increase the ceramic bond thickness, and the transition layer and the net structure counteract the stress during thermal shock; and according to the ceramic-coated alloy stator blade, the temperature of a turbine inletand the efficiency of turbine machinery can be improved, and the service life of a turbine is prolonged.

Description

technical field [0001] The invention relates to a superalloy piece of fluid power equipment, in particular to a ceramic-coated superalloy blade, which is applied in the technical field of gas turbine and engine turbomachinery. Background technique [0002] According to the Brayton cycle, increasing the inlet temperature of the turbine can improve the utilization efficiency of the turbomachinery, and how to increase the inlet temperature of the turbomachinery is related to the performance of the turbomachinery. The turbine inlet temperature of modern gas turbines and engines has reached 1650-1750°C. At present, the third-generation single crystal material can only withstand the temperature of 1100°C. With film cooling, it can have a cooling effect of 400°C, and there are still 100-200°C. The gap is currently realized by TBC thermal barrier coating. How to increase the thickness of the thermal barrier coating and increase the heat-resistant temperature can increase the turbin...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F01D9/02F01D25/12
CPCF01D9/02F01D25/12
Inventor 于铠瑞郝霄鹏王文
Owner SHANGHAI UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com