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| Influence of wrap number on performance of multi-wrap scroll compressor |
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WANG Jun, JU Hong, ZHAO Ming, QU Yan
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(College of Mechanical and Electronic Engineering in China University of Petroleum, Dongying 257061，China)
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| Abstract: |
| A general geometry model of multi-wrap scroll plate was established, the variation laws of performance parameters such as suction volume, compression ratio and relative velocity with wrap number were obtained, the influencing factors of the structure parameters of wrap thickness，wrap height as well as pitch in working process were discussed，and the differences between circle involute and regular polygon involute used for wrap profile were analyzed. Compared with single wrap scroll compressor, the relative velocity of multi-wrap scroll compressor with the same basic circle radius decreases obviously, and its suction volume with the same pitch increases. Therefore, the multi-wrap scroll compressor can increase suction volume, decrease compressor's shape dimension and reduce friction loss at the same time, and is more applicable to the situation of large suction volume. |
| Key words: scroll compressor multi-wrap geometry model optimization |
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