Airfoil for large-scale industrial high-pressure ratio axial flow compressor

An axial-flow compressor, a large-scale industrial technology, is applied in the field of axial-flow compressors, and can solve the problems that the blade design of the axial-flow compressor cannot be applied, and the operating conditions of the wind turbine cannot be adapted.

Inactive Publication Date: 2013-02-27
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This patent application is designed and innovated based on the characteristics of wind turbines involved in wind power generation. Therefore, its airfoil cannot be applied to the blade design of axial flow compressors.
In addition, the airfoil design method proposed in this patent does not address the special requirements for the aerodynamic performance of the airfoil during the operation of the wind turbine. Therefore, although the airfoil has a high lift-to-drag ratio, it cannot adapt to the actual operating conditions of the wind turbine.
Secondly, there is no relevant experimental data in the patent for verification

Method used

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  • Airfoil for large-scale industrial high-pressure ratio axial flow compressor
  • Airfoil for large-scale industrial high-pressure ratio axial flow compressor
  • Airfoil for large-scale industrial high-pressure ratio axial flow compressor

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Embodiment Construction

[0013] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.

[0014] like figure 1 As shown, the present embodiment includes: 1 is the suction surface of the airfoil, 2 is the pressure surface of the airfoil, 3 is the mid-arc of the airfoil, c is the chord length of the airfoil, d is the maximum thickness of the airfoil, x d is the abscissa value of the airfoil at the maximum thickness of the airfoil, f is the maximum camber of the airfoil, x f is the abscissa value of the airfoil at the maximum camber of the airfoil.

[0015] The lift coefficient reflects the work ability of the airfoil. As the angle of attack increases, the lift coefficient increases gradually. Therefor...

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Abstract

The invention relates to an airfoil for a large-scale industrial high-pressure ratio axial flow compressor in the technical field of axial flow compressors. The ratio of the maximum thickness to the chord length of the airfoil is 0.0809, the ratio of a position with the maximum thickness to the chord length of the airfoil is 0.33, the ratio of curvature to the chord length of the airfoil is 0.0422, and the ratio of a position with the maximum curvature to the chord length of the airfoil is 0.45. The airfoil completely meets the actual operation condition of the industrial large-scale axial flow compressor, and can improve the pressure ratio and operation range of the compressor.

Description

technical field [0001] The invention relates to a device in the technical field of axial flow compressors, in particular to an airfoil for large industrial high pressure ratio axial flow compressors. Background technique [0002] In the middle of the 19th century, axial flow compressors began to be used in industrial production. After long-term research and development, the technology has made great progress. It is widely used in industry, national defense, agriculture and other fields with its excellent high efficiency, wide range of working conditions brought by adjustable dynamic and static blades, and large flow characteristics. It is considered to be the traditional field of centrifugal compressors, such as large air separation, large catalytic cracking, large blast furnace and other projects. With the improvement of industrial requirements, axial flow compressors have developed rapidly in terms of aerodynamic design, mechanical manufacturing, and operation monitoring....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/38
Inventor 杨波谷传纲王彤
Owner SHANGHAI JIAO TONG UNIV
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