A kind of equivalent test device of erosion of compressor blade

By designing an equivalent test device for compressor blade erosion, and using a Venturi jet and a hand-cranked worm gear reducer to precisely control the quality and angle of the grinding material, the problem of inaccurate wear assessment in existing technologies has been solved, and accurate simulation and life extension of compressor impellers have been achieved.

CN224456465UActive Publication Date: 2026-07-03DEZHOU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DEZHOU UNIV
Filing Date
2025-06-18
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing technologies struggle to accurately control the mass flow of abrasive material across the compressor blade surface, resulting in inaccurate simulation of erosion effects and impacting compressor impeller wear assessment and life prediction.

Method used

An equivalent test device for compressor blade erosion was designed, including a compressed air pump, a sand tank, an erosion tube, an erosion chamber, and a sample holder. The mass and angle of the grinding material are precisely controlled by a Venturi jet and a hand-cranked worm gear reducer to achieve accurate simulation of the erosion effect.

Benefits of technology

It achieved accurate simulation of erosion effects, providing accurate data support for subsequent material optimization and extending the service life of the compressor impeller.

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Abstract

This utility model belongs to the field of material erosion testing technology, and particularly relates to an equivalent test device for compressor blade erosion. It includes a compressed air pump, a sand tank, an erosion pipe, an erosion chamber, and a sample holder. The sample holder is characterized by having a sample slot sealed on three sides, with a baffle on the open side of the slot. The sample holder has ear plates on both sides; one ear plate is movably connected to the side wall of the erosion chamber via a half-shaft, and the other ear plate is movably connected to the opposite side wall of the erosion chamber via a half-shaft. The outer end of either half-shaft is connected to the output shaft of a worm gear reducer, which is mounted on the outer side wall of the erosion chamber. The beneficial effects of this utility model are: by accurately controlling the quality of the abrasive material flowing over the surface of the flat material sample, it achieves precise simulation of the erosion effect, providing accurate data support for equivalent analysis, which is beneficial for guiding material optimization and ultimately extending the service life of compressor impeller products.
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