| 应用小孔喷注噪声原理分析全封闭活塞式制冷压缩机吸排气阀噪声 |
| |
| 引用本文： | 仇颖,李红旗,吕亚东. 应用小孔喷注噪声原理分析全封闭活塞式制冷压缩机吸排气阀噪声[J]. 流体机械, 2007, 35(1): 25-28 |
| |
| 作者姓名： | 仇颖 李红旗 吕亚东 |
| |
| 作者单位： | 北京工业大学,北京,100022;中国科学院声学研究所,北京,100080 |
| |
| 基金项目： | 国家自然科学基金，北京市自然科学基金 |
| |
| 摘 要： | 制冷剂气体流经压缩机吸、排气阀时,由于气流穿过狭小的阀隙,会产生类似喷注的噪声,将小孔喷注噪声原理应用在吸、排气气阀开启瞬间产生的噪声分析中,并理论定量分析制冷剂蒸气流经吸、排气阀产生气流噪声的机理,着重分析了吸、排气过程转角与压差、转角与声压级、压差与声压级的关系.根据噪声产生原理,指出降低噪声的根本途径是降低气流通过气阀前后的压力损失,并给出降低气流噪声的主要途径是:提出减小阀片刚性、厚度以及扩大排气孔孔径等.并给出了几种通过改善吸、排气阀结构来降低压缩机噪声的方法.
|
| 关 键 词： | 热工学 吸排气阀噪声分析 小孔喷注原理 全封闭活塞压缩机 |
| 文章编号： | 1005-0329（2007）01-0025-04 |
| 修稿时间： | 2006-05-09 |
Analysis of Suction and Discharge Valve Noise in a Hermetic Reciprocating Compressor by Using Jet Noise Theory |
| |
| QIU Ying,LI Hong-qi,LV Ya-dong. Analysis of Suction and Discharge Valve Noise in a Hermetic Reciprocating Compressor by Using Jet Noise Theory[J]. Fluid Machinery, 2007, 35(1): 25-28 |
| |
| Authors: | QIU Ying LI Hong-qi LV Ya-dong |
| |
| Affiliation: | 1. Beijing University of Technology, Beijing 100022, China; 2. Institute of Acoustics, Chinese Academy of Sciences, Beijing 100080, China |
| |
| Abstract: | When the refrigerant flow is passing through the suction or discharge valve of the hermetic reciprocating compressor, because Of the presence of small vent in the valve, it generates jet-like noise. The jet noise theory is used to analyze noise produced during the opening period of the suction or discharge valves in a similar way, theoretical calculations are made. in order to reduce the noise emitted from the compressor, some ways were given to change the structures of the suction and discharge valves in a compressor, |
| |
| Keywords: | pyrology suction & discharge valve noise analyse jet noise theory hermetic reciprocating compressor |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
