Studies on Scroll Compressor Noise Improvement

Abstract:

As the environment and customer are sensitive to compressor noise from refrigeration air condition system, it’s necessary to reduce noise level for scroll compressor to compete with piston one in this field. In this paper, we studied one way to detect noise resource and reduce noise level for scroll compressor; analyzed its vibration and noise characteristics; got the sound intensity distribution on the surface of compressor; performed the model test of the main part by using hammer strike and gained their intrinsic frequents. At last, by comparing the scroll compressor noise test results, sound intensity distribution, and intrinsic frequents, it was confirmed that upper shell resonation is the root cause to increase the noise. Also we gave a specific method, adding additional weight to upper shell, to avoid resonation. It’s proved to be efficient after test check.

• Periodical: Applied Mechanics and Materials (Volume 694)
• Pages: 504-508
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.694.504
• Online since: November 2014
• Authors: Qing Miao*, Yan Ru Men, Jin Xiang Wu, Xiang Gou
• Keywords: Noise Improvement, Resonance, Scroll Compressor, Sound Intensity Analysis

References

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[3] Y.L. Wu, Z. Wang, Z.H. Zhao: Scroll compressor noise radiation ODS analysis and application, volume 2 of Practical and Measurement (2014).