Integrated Annular Silencer for Centrifugal Compressor Noise Reduction
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Solution Overview
Problem
Centrifugal compressors in refrigeration systems generate excessively high noise due to high pressure ratios and low flow velocities, leading to harmful vibrations and reduced noise reduction effectiveness in existing silencers, which often suffer from assembly deviations and clearance issues.
Innovation Solution
A silencer with an annular plate-like housing, a sound-absorbing pad, and a positioning portion for secure mounting, providing an integrated structure that minimizes unflatness and enhances noise reduction through uniform sound absorption and structural reinforcement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a segmented silencer structure is used, then the silencer is easy to machine and assemble, but assembly deviations and clearances are generated that reduce noise reduction effectiveness
Solution Approach 1:
The patent merges multiple segmented silencer components into a single integrated silencer housing structure. This eliminates the need for assembly of multiple segments, thereby removing assembly deviations and clearances while maintaining ease of manufacturing through integrated design and machining.
2Ease of manufacture
If a segmented silencer structure is used, then the silencer is easy to machine, but clearances remain between segments that create new noise sources
Solution Approach 1:
The patent merges multiple segmented silencer components into a single integrated silencer housing structure. This eliminates the clearances between segments that act as noise sources, while the integrated design maintains manufacturability through unified machining processes.
3Strength
If the silencer housing structure is reinforced, then the structural integrity is improved, but the complexity of the structure increases
Solution Approach 1:
The silencer housing is divided into functional segments (housing, mounting chamber, positioning portions) that are integrated into a unified structure. This segmentation allows each part to be optimized for its function while maintaining overall structural integrity, and the modular design actually simplifies manufacturing and assembly processes.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The integrated silencer effectively reduces noise levels in centrifugal compressors, ensuring a healthier working environment and reducing equipment vibrations, while maintaining structural integrity and ease of assembly.
Implementation Method 1
a silencing pad (120) disposed inside the mounting chamber
Data Source
AI summary
The present invention provides a silencer, including: a silencer housing having an annular plate-like structure, with an annular mounting chamber formed therein; a silencing pad disposed in the mounting chamber; and a positioning portion disposed on the silencer housing and used for fastening the silencer housing. The silencer according to the embodiment of the present invention has an integrated structure, and can desirably avoid the problem of mounting unflatness in a separated structure. Moreover, the silencing pad therein is disposed to surround the entire silencer, which can provide a sound absorption and noise reduction effect more efficiently.