舰船柴油机缸内工作过程监测系统设计与实现

Design and implementation of in-cylinder working processes monitoring system for marine diesel engines

柴油机缸内工作过程监测是准确掌握柴油机工作状态,及时发现早期故障隐患的重要手段。介绍了舰船柴油机缸内工作过程监测技术应用现状,提出了柴油机缸内工作过程监测系统的设计方案,针对该监测系统在设计与研制过程中存在的高温动态压力传感器、数据采集模块、数据分析处理方法、系统故障诊断与预警等主要技术难题,给出了具体实现方法。通过对船用柴油机热工性能实际监测与诊断分析应用表明,该系统具有良好的柴油机热工性能分析和故障诊断实用价值。

Monitoring the working process of diesel engine cylinder is an important means of the accurate grasp of the diesel engine working status ,and timely detection of early fault hidden trouble .This paper introduces the monitoring technology application situation for working process in marine diesel cylinder ,puts forward a design scheme of monito‐ring system of the working process in diesel engine .Aiming at the main technical problems of high temperature dynamic pressure sensor ,data acquisition module ,data analysis and processing method ,system fault diagnosis and early w arning in the monitoring system’s design and development process ,it gives the specific realization method .Based on the actual application to marine diesel engine thermal performance monitoring and diagnosis analysis ,it show s that the system is of good practical value to diesel engine thermal performance analysis and fault diagnosis .