摘要
针对天然气压缩机组用燃气发动机检测信号干扰耦合给故障检测带来困难的问题,采用一种基于曲轴转角动作事件与分频段故障信号检测相结合的诊断方法,通过在曲轴飞轮上固定安装磁电式速度传感器,建立基于曲轴转角的动作事件关系,把故障诊断与基于曲轴转角的动作事件结合起来判断故障类型.以某站ZTY310MH压缩机组用燃气发动机性能检测为例,测得缸内燃烧不充分并有弱点火及爆燃现象,点火角度不合适及缸内积碳是造成发动机做功性能低劣的原因.结果表明:通过故障检测可及早发现和排除故障,减少安全隐患和停机时间,对提高发动机工作性能具有重要意义.
For the fault detection difficulties of the natural gas compressors' engines caused by the coupled detection signals interference,a fault diagnosis method was adopted combining the units' action event and sub-band fault signals detection based on the crank angle. The fault type can be diagnosed accurately by analyzing the detection signals combining fault diagnosis and the units' action events,installing the fixed magnetic velocity sensor on the crankshaft,and establishing units action events based on the crank angle. ZTY310 MH performance tests of a booster station is taken as an example. Result of the detection verifies that the ignition angle improper and carbon deposit are the real reasons for engine working inferior. Detecting regularly for the engine of reciprocating compressor can be helpful to discover and diagnose faults as soon as possible and also reduce the security risks and downtime. Therefore,it is of great significance to improve the working performance of the engine of natural gas compressors.
出处
《北京工业大学学报》
CAS
CSCD
北大核心
2014年第11期1609-1614,共6页
Journal of Beijing University of Technology
基金
国家自然科学基金资助项目(51074202)
四川教育厅成果转化重大培育项目(省教667)
教育部重点实验室项目(STS01)
关键词
天然气压缩机组
燃气发动机
故障诊断
性能检测
nature gas compressor units
gas engine
fault diagnosis
performance detection
