Plane cascade experimental device with variable mounting angle and experimental method

An experimental device and installation angle technology, applied in the direction of measuring device, aerodynamic test, machine/structural component test, etc., can solve the problem of increasing wind tunnel test time, increasing the processing cost of plane blade cascade test parts, and reducing wind tunnel test Efficiency and other issues, to achieve the effect of convenient and quick adjustment, reduce the cost of experiments, and wide application range

Active Publication Date: 2020-03-24
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology

Therefore, in order to meet the requirements of wind tunnel experiments with different installation angles, it is usually necessary to process multiple sets of p

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  • Plane cascade experimental device with variable mounting angle and experimental method
  • Plane cascade experimental device with variable mounting angle and experimental method
  • Plane cascade experimental device with variable mounting angle and experimental method

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[0052] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0053] The invention provides a plane blade cascade experimental device with a variable installation angle, which is mainly used to adjust the installation angle of the blade cascade in the experimental research on the performance law of adjustable guide vanes / static vanes, and can realize the function of continuous adjustment of the installation angle. That is, the continuous and precise adjustment of the installation angle can be achieved through a plane blade cascade experimental device, which not only reduces the experimental cost of experimental research on the p...

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Abstract

The invention provides a plane cascade experimental device with a variable mounting angle and an experimental method. The device comprises an upper grid plate, a lower grid plate, a fixed column, blades, an upper stepped shaft, a lower stepped shaft and a mounting angle adjusting mechanism. The mounting angle adjusting mechanism comprises a connecting rod, a crank, mounting angle positioning holesand a positioning bolt and is arranged above the upper grid plate, the plurality of mounting angle positioning holes are formed in the upper grid plate, and each mounting angle positioning hole is located at the periphery of a corresponding upper stepped hole. Moreover, the arrangement angles of the mounting angle positioning holes relative to the corresponding upper stepped holes are different.The advantages of the present invention are that the mounting angle can be continuously and accurately adjusted; the experiment cost of the performance law experiment research of an adjustable guide vane/stationary vane is reduced, the advantages that the adjustment is convenient and fast, the time and labor are saved, the operation is simple, the adjustment precision is high, the leakage loss issmall, the application range is wide, etc., are realized, and the problems in the background technology can be effectively solved.

Description

technical field [0001] The invention belongs to the technical field of plane cascade experimental devices, and in particular relates to a plane cascade experimental device and an experimental method with variable installation angles. Background technique [0002] The planar cascade wind tunnel is the basic experimental equipment for axial-flow turbomachinery research, and is widely used in all aspects of turbomachinery aerodynamic basic research such as turbomachinery design, new blade development, flow mechanism exploration, and new technology verification. [0003] Currently, if figure 1 As shown, it is the principle structure diagram of the test section of the plane cascade wind tunnel, and the method adopted is: (1) Firstly, according to the size and periodicity requirements of the test section 1 of the cascade wind tunnel, the planar cascade test piece is designed, among which, The plane cascade test piece is composed of several identical straight blades, upper grid an...

Claims

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Application Information

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IPC IPC(8): G01M9/02G01M9/04
CPCG01M9/02G01M9/04
Inventor 高丽敏蔡明黎浩学刘哲曹志远
Owner NORTHWESTERN POLYTECHNICAL UNIV
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