Fan blade material erosion test device and method based on annular jet disc

By integrating water spraying and sandblasting systems into the erosion test device, and combining the sample rotation and horizontal movement, the problem of difficult switching of multi-media erosion conditions in existing devices is solved, realizing multi-directional and multi-media erosion loading of wind turbine blade materials, and improving the authenticity and stability of the test.

CN122448629APending Publication Date: 2026-07-24SHANDONG UNIV +2
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Patent Information

Application Number
CN202610942857.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-06-29
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing erosion test equipment is difficult to switch or superimpose multiple media erosion conditions in the same device, and the relative motion of the sample is singular, which cannot effectively simulate the tangential velocity component of the wind turbine blade in the rotating state. The recovery, filtration and circulation structure of the erosion medium is imperfect, resulting in low media utilization efficiency and insufficient test stability.

Method used

A wind turbine blade material erosion test device based on an annular jet disk is adopted, which integrates water spraying and sandblasting systems in the same annular jet disk. It combines the sample rotation and horizontal movement, and is equipped with a bottom circulating water tank unit for media collection, sedimentation, filtration and purification.

Benefits of technology

Stable simulation of multi-media erosion was achieved, which improved the realism and consistency of the experiment, enhanced the engineering relevance of the test results and the adaptability and repeatability of the device, and reduced the risk of media utilization.

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Abstract

The invention belongs to the technical field related to erosion wear tests, and provides a fan blade material erosion test device and method based on an annular jet disc in order to solve the problem that it is difficult to achieve switching or superposition of various medium erosion conditions in the same device in the prior art. Comprising a container cabinet, a disc spraying unit, a sample rotating movement unit and a bottom circulating water tank unit, a medium flowing channel extending in the circumferential direction is formed in the annular spraying disc, and the nozzles located in the corresponding area of the liquid disc pipeline form a water spraying and spraying area used for rain erosion and washout. The nozzles located in the corresponding area of the sand grain disc pipeline form a sand blasting jetting area which is used for conducting sand wind or gas-solid mixed erosion. The sample is driven by the rotating table assembly to rotate around the axis of the sample so as to simulate the tangential motion state of the fan blade in the actual operation process. The device provided by the invention can realize stable simulation of rain erosion, sand erosion and composite action thereof on the fan blade.
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