【摘要】 针对某往复式压缩机组的一级进气管路，采用数值模拟方法研究缓冲罐内插管式脉动衰减器各参数对管路气流脉动特性的影响。研究表明:内插管长度与管线侧法兰压力脉动峰峰值呈线性负相关关系，缓冲罐各个腔室的内插管产生的脉动衰减效果可叠加，但内插管长度增加导致压损线性增加。内插管内径与压力脉动峰峰值总体呈负相关关系，但压损随内径减小呈指数增加。相较于内插管内径，各阶脉动峰峰值变化幅度对内插管长度的变化更为敏感，而内径的变化则对压损影响更大。与内插管参数优化前的脉动衰减效果相比，一阶脉动峰峰值削减62.2%，二阶脉动峰峰值削减50.4%，缓冲罐总压损为26.083 4 kPa，低于API618规定标准值。更多还原

【Abstract】 This paper studied the influence of various parameters in the buffer tank insertion-type pulsation attenuator on the airflow pulsation characteristics of the primary air intake pipe of a reciprocating compressor unit using numerical simulation methods. The results show that the length of the insertion tube is negatively correlated with the peak-to-peak pressure fluctuation of the side flange of the pipeline in a linear relationship. The pulsation attenuation effects of the insertion tubes in the various chambers of the buffer tank can be added,but the pressure loss increases linearly with the increase of the insertion tube length. The inner diameter of the insertion tube is negatively correlated with the peak-to-peak pressure fluctuation in general, but the pressure loss increases exponentially with the decrease of the inner diameter. Compared with the change of the inner diameter,the change of the filter tube length is more sensitive to the fluctuation of the peak-to-peak pressure value,while the pressure loss is more affected by the change of inner diameter. Compared with the pulsation attenuation effect before optimizing the insertion tube parameters,the peak-to-peak value of the first-order pulsation is reduced by62. 2%,and the peak-to-peak value of the second-order pulsation is reduced by 50. 4%. The total pressure loss of the buffer tank is 26. 083 4 KPa,which is lower than the standard value specified by API618.更多还原