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Turbine rear casing heat shield

A heat shield and turbine technology, applied to gas turbine devices, mechanical equipment, engine components, etc., can solve the problems of large aerodynamic loss, high fuel consumption, gas channel blockage, etc., to reduce surface temperature, improve service life, Effect of reducing aerodynamic loss

Active Publication Date: 2021-01-12
AECC SHENYANG ENGINE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the shape of the heat shield is generally simply designed as a runway shape, which will block the gas flow channel, resulting in large aerodynamic loss and high fuel consumption.

Method used

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  • Turbine rear casing heat shield
  • Turbine rear casing heat shield
  • Turbine rear casing heat shield

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Embodiment Construction

[0030] In order to make the purpose, technical solution and advantages of the application more clear, the technical solution in the embodiment of the application will be described in more detail below in conjunction with the drawings in the embodiment of the application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the application. The embodiments described below by referring to the figures are exemplary, and are intended to explain the present application, and should not be construed as limiting the present application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application. Embodiments of the present application will be described in detail below in conjunction with th...

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Abstract

The invention belongs to the field of aero-engine and gas turbine design, and particularly relates to a turbine rear casing heat shield. The turbine rear casing heat shield comprises a force bearing frame, a supporting framework and a heat shield body. The force bearing frame comprises an outer end frame, an inner end frame and a force bearing supporting plate arranged between the outer end frameand the inner end frame. The supporting framework is located behind the force bearing supporting plate. One end of the supporting framework is connected with the outer end frame of the force bearing frame, and the other end of the supporting framework is connected with the inner end frame of the force bearing frame. The heat shield body is in a streamline shape and is arranged on the outer side ofthe force bearing supporting plate in a sleeving manner. The heat shield body comprises a heat shield blade back and a heat shield blade basin. The first end of the heat shield blade back is connected with the first end of the heat shield blade basin, and the second end of the heat shield blade back and the second end of the heat shield blade basin are both connected with the supporting framework. By means of the turbine rear casing heat shield, the pneumatic loss of a gas runner can be effectively reduced, and therefore the oil consumption rate is reduced, and the using economical efficiencyof an engine is better.

Description

technical field [0001] The application belongs to the design field of aeroengines and gas turbines, and in particular relates to a heat shield for the rear casing of a turbine. Background technique [0002] In the turbine rear casings of modern aero-engines and gas turbines, heat shields are generally used to surround the outer periphery of the load-bearing support plate of the turbine rear casing load-bearing frame. The heat shield is used to isolate the supporting plate from the gas, so as to reduce the surface temperature of the supporting plate and improve the service life. [0003] In the prior art, the shape of the heat shield is generally simply designed as a racetrack, which will block the gas flow channel, resulting in large aerodynamic loss and high fuel consumption. [0004] Therefore, it is desirable to have a technical solution to overcome or at least alleviate at least one of the above-mentioned drawbacks of the prior art. Contents of the invention [0005]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D25/14F02C7/24
CPCF01D25/145F02C7/24
Inventor 王天一牛俊涛汤旭张倩
Owner AECC SHENYANG ENGINE RES INST
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