复合型天然气压缩机主机中十字头装配工装设计与改进

Design and Improvement of Cross Head Assembly Tooling for Composite Natural Gas Compressor Host

天然气压缩机主机是工业领域中重要的能源设备,而十字头作为压缩机主机的重要组件,对压缩机的性能和稳定性具有重要影响。十字头工装作为十字头制造和维修的关键工具,其设计与改进对于提高压缩机性能和降低能耗具有重要意义。使用Ansys Workbench对十字头工装强度进行有限元分析,得到了螺钉与法兰连接处为应力集中的地方,十字头受到应力为52.06 MPa,小于等效应力160 MPa,在不同工况下,十字头的质量对工装的应力影响较大,螺钉受到预紧力的影响较为敏感。有限元论校核结果表明,工装设计符合要求,为天然气压缩机主机中十字头装配工装安全使用提供论支撑。

Natural gas compressor host is important energy equipment in the industrial field,and the crosshead,as an important component of compressor host,has a significant impact on the performance and stability of compressor.Cross head tooling,as a key tool for cross head manufacturing and maintenance,its design and improvement are of great significance for improving compressor performance and reducing energy consumption.Using Ansys Workbench to conduct finite element analysis on the strength of crosshead fixture,it was found that the connection between the screw and flange is a stress concentration area.The crosshead is subjected to a stress of 52.06 MPa,which is less than the equivalent stress of 160 MPa.Under different working conditions,the quality of crosshead has a significant impact on the stress of fixture,and the screw is more sensitive to the influence of pre-tightening force.The finite element theory verification results indicate that the fixture design meets the requirements,providing theoretical support for the safe use of cross head assembly fixtures in natural gas compressor hosts.