往复式压缩机故障诊断技术研究

发布时间：2018-07-26 10:49

【摘要】：压缩机在各个领域,尤其在石油、化工、机械等行业中都是一种被广泛应用的设备,而往复式压缩机又是用的最多的压缩机之一,因此往复式压缩机的故障诊断技术的研究也就受到了国内外广大学者的广泛关注。也正是由于往复式压缩机的使用范围广,因此其结构类型各异,尺寸大小和压力高低差别很大,在各种使用场合下都有各自特别的要求和问题。而且,由于往复式压缩机结构复杂,零部件多,发生的故障也是多种多样的,因此对压缩机各部分的运行状态监测相对来说比较困难,其故障诊断方法也比较庞杂。引起压缩机故障的原因往往很复杂,其中一大隐患便是压缩机的振动,由外力或者内因引起的振动可大可小,强烈的振动则可能会将压缩机机座振裂、零部件联结机构损坏,严重的可能会导致压缩机停机,影响正常的生产生活。也只有通过振动测量,正确分析研究,找出振动的原因,才能有效采取减振措施。当然压缩机的故障也不仅仅是振动,还有很多其他的问题。本文叙述了往复式压缩机故障诊断的意义及研究现状,对往复式压缩机常见故障及机理进行了分析,并介绍了国内外一些常见的往复式压缩机状态监测与故障诊断的方法及其原理和特点,以及往复式压缩机的故障诊断方法的难点和发展方向,最后提出了利用简单易行的线性回归分析对压缩机故障进行诊断分析。对往复式压缩机的故障诊断方法研究有着重要的意义。
[Abstract]:Compressors are widely used in various fields, especially in petroleum, chemical and mechanical industries, and reciprocating compressors are one of the most widely used compressors. Therefore, the research of reciprocating compressor fault diagnosis technology has been widely concerned by domestic and foreign scholars. It is precisely because of the wide range of use of reciprocating compressor, so its structure type, size and pressure are very different, in all kinds of applications have their own special requirements and problems. Because the reciprocating compressor has complex structure, many parts and various faults, it is difficult to monitor the running state of every part of the compressor, and the fault diagnosis method is complex. The causes of compressor failures are often very complicated, and one of the major hidden dangers is the vibration of the compressor. The vibration caused by external forces or internal causes can be large or small, and the strong vibration may crack the compressor seat and damage the coupling mechanism of the parts and components. Serious may lead to compressor shutdown, affecting normal production and life. Only through vibration measurement, correct analysis and study, find out the cause of vibration, can we take effective vibration reduction measures. Of course, compressor failure is not only vibration, there are many other problems. In this paper, the significance and research status of reciprocating compressor fault diagnosis are described, and the common faults and mechanism of reciprocating compressor are analyzed. This paper also introduces some common methods of condition monitoring and fault diagnosis of reciprocating compressors at home and abroad, as well as their principles and characteristics, as well as the difficulties and development directions of fault diagnosis methods for reciprocating compressors. Finally, a simple linear regression analysis is proposed to diagnose the compressor faults. It is of great significance to study the fault diagnosis method of reciprocating compressor.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH45

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