基于排气压力的压缩机转速测量方法研究  

Research of compressor speed measurement method based on discharge pressure

作　　者：沈希[1] 熊奇[1] 顾江萍[1] 金华强[1] 徐鸣[1] 

机构地区：[1]浙江工业大学机械工程学院,浙江杭州310014

出　　处：《浙江工业大学学报》2016年第1期11-14,共4页Journal of Zhejiang University of Technology

基　　金：国家自然科学基金资助项目(51076143)

摘　　要：压缩机的转速是测量压缩机性能的一个重要指标之一,它影响着制冷系统的制冷量、效能比以及功耗、吸排气压力等,但是对于全封闭式的压缩机传统的测量方法(如编码器)已不能适用.为了快速精确测量全封闭压缩机转速,提出了一种基于排气压力的周期性波动来测量压缩机转速的方法,通过LABVIEW软件平台对排气压力信号进行数据采集、信号分析、结果显示.该方法不仅适用于小型制冷往复式压缩机,也适用于周期性排气压力变化的压缩机,具有一定的推广意义.The speed of the compressor is one of the most important index for measuring the compressor performance.It effects the refrigerating capacity of the refrigeration system,efficiency,power consumption,discharge pressure and so on.But for hermetic compressor,traditional measurement methods（such as encoder）can not be applied.In order to measure hermetic compressor speed quickly and accurately,proposed a method based on discharge pressure that had cyclical fluctuations to measure the rotational speed of compressor based on the LABVIEW software platform of discharge pressure signal data acquisition,signal analysis,display results.This method is not only suitable for small reciprocating refrigeration compressor,also applies to compressor that has periodic discharge pressure change,which has a certain popularization significance.

关 键 词：往复式压缩机 转速测量 LABVIEW Chirp-Z 

分 类 号：TP39[自动化与计算机技术—计算机应用技术]