Research on key structural parameters for multi-stage reciprocating compressor

The process of gas compression is very complex and difficult to study in multi-stage variable cross-section reciprocating compressor and how to determine key structure parameters is very important for its optimization design and improving performance. The mathematical model including check valve and gas leakage is firstly established based on working principle and motion characteristics. In the isothermal condition, the influence rules are studied between compression performance and structural parameters, which establishes the foundation for the design and application in multi-stage reciprocating compressor. The results show that the intake check valve and seal of high-pressure cylinder play an important role in the multistage reciprocating compressor and suitable design and selection for them can greatly improve the compressor performance.

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