径向排气式缓冲罐对往复压缩机管系振动的抑制研究

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摘要压力脉动是导致往复压缩机及其管系振动的主要原因。为进一步提高缓冲罐对管系压力脉动的抑制效果，对径向排气式缓冲罐的抑制特性展开理论研究。构造了径向排气缓冲罐的压力脉动传递数学模型，预测压力脉动沿全管系分布趋势。研究结果表明，相比于轴向排气结构，径向排气使缓冲罐具有更好的脉动抑制效果,其所在全管系压力脉动抑制率最大可提高10%。结合实验研究和三维瞬态模拟证明了理论模型的合理性。结合压力脉动传递数学模型优化排气管偏置距离和罐体长径比等结构参数，计算结果表明，在缩短偏置距离的同时减小长径比，可使管系压力脉动峰峰值最大值进一步衰减约8%，从而为现场抑制管系振动提供理论指导。

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	马屈杨
	杨国安
	李孟君

关键词 ：往复压缩机, 压力脉动, 传递矩阵, 径向排气式缓冲罐

Abstract：Vibration of a reciprocating compressor piping system is caused mainly by the pressure pulsation.To further improve the performance of suppressing pressure pulsations in the whole piping system by using a surge tank, the characteristics of pulsation suppression using the radial-exhaust surge tank was studied.The transfer matrix was developed, and the distribution of pressure pulsation was predicted.The results showed that the relative suppression ratio in the piping system with a radial-exhaust surge tank is increased by 10% compared with an axial-exhaust surge tank.The validity of the theoretical model was verified by experiments and three-dimensional transient simulations.The optimization of the geometrical parameters, such as the distance between the inlet and outlet pipes and the ratio of length to diameter, was performed.The maximum peak-to-peak pressure pulsation in the piping system is decreased by 8% when the distance was shortened and the ratio was decreased.This work may provide guidance for vibration control in the industry.

Key words： reciprocating compressor pressure pulsation transfer matrix radial-exhaust surge tank

收稿日期: 2018-01-24 出版日期: 2019-06-15

引用本文:

马屈杨,杨国安,李孟君. 径向排气式缓冲罐对往复压缩机管系振动的抑制研究[J]. 振动与冲击, 2019, 38(12): 17-24.
MA Quyang,YANG Guoan,LI Mengjun. Vibration control in a reciprocating compressor piping system using a radial-exhaust surge tank. JOURNAL OF VIBRATION AND SHOCK, 2019, 38(12): 17-24.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2019/V38/I12/17

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