流体机械

2021, v.49;No.587(05) 14-20

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新型双对置活塞压缩机理论计算与动力分析
Force analysis and theoretical calculation of the new double opposed piston compressor

何志龙;韩耀祥;郭旭;
HE Zhilong;HAN Yaoxiang;GUO Xu;Xi'an Jiaotong University;

摘要(Abstract):

活塞压缩机的创新设计对探索新型、高效的压缩机结构具有较大的意义。本文提出了一种新型双对置的活塞压缩机机构,其具有质量较轻,零部件少,空间利用率高等优点。该新型压缩机在曲轴的两侧设有2个气缸,每个气缸内部设置2个相对的活塞,内部活塞通过一根内连杆连接,外部活塞通过外部2根完全对称的外部连杆连接,该压缩机省去了气缸盖、曲轴箱等结构。此外,在详细介绍其工作原理的基础上,对该新型压缩机进行了热力和动力计算,结果表明:该压缩机气体力可以完全平衡;在惯性力方面,该压缩机的一阶惯性力为零,二阶惯性力较小。此外,其均匀的切向力、良好的活塞力和法向力平衡性能也表明该压缩机具有力学性能良好、运转平稳和振动噪声低等优势。
The innovative design of the piston compressor is of great significance for exploring new and high-efficiency compressor structures.A new type of double opposed piston compressor is proposed,and it has the advantages of lighter weight,fewer parts and high space utilization.The new compressor has two cylinders on both sides of the crankshaft.Each cylinder has two opposed pistons,and the internal piston is connected through an internal connecting rod,the external piston is connected through two external symmetrical external connecting rods,the compressor omits the structure of the cylinder head and crankcase.In addition,based on of detailed introduction of its working principle,the thermal and dynamic calculations are carried out.The results show that the gas force of the compressor can be completely balanced;Through its power calculation,its first-order inertial force is zero,and its second-order inertial force is relatively small;Also,the relatively uniform tangential force and good balance performance of piston force and normal force show that the compressor has good mechanical performance,and has the advantages of smooth operation and low vibration and noise.

关键词(KeyWords): 双对置压缩机;动力计算;力学性能
double opposed piston compressor;dynamic calculation;mechanical property

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基金项目(Foundation): 国家自然科学基金资助项目(51976148)

作者(Author): 何志龙;韩耀祥;郭旭;
HE Zhilong;HAN Yaoxiang;GUO Xu;Xi'an Jiaotong University;

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