基于LabVIEW的便携式推力轴承数据采集系统设计

Design of Data Acquisition System for Portable Thrust Bearing Based on LabVIEW

在大型水轮发电机工作中,推力轴承的运行状态与发电机工作的效率与安全有着重要的关联;因此在水轮发电机运行过程中需要对轴承系统的各项数据进行实时监测,已保证发电机在可控条件下进行作业;本系统采用了基于LabVIEW软件平台的多路并行数据采集结构,实现了对轴承系统中推力瓦的温度、油膜厚度、电机转速等试验数据的实时采集,将采集到的数据实时显示、显示界面的截屏以及对试验数据的分析、处理、记录和保存等功能;同时利用DataSocket技术实现不同计算机之间的高速数据共享,让多个试验人员实时分析记录轴承系统数据;试验结果表明此便携式推力轴承数据采集系统具有能够长时间稳定可靠的运行,数据采集控制精度高,试验人员查看数据方便,系统操作简单等特点。

In the work of large hydro generator,the running state of the thrust bearing is related to the efficiency and safety of the generator;Therefore,in the process of the operation of the hydro generator,the data of the bearing system should be monitored in real time,and the generator can be operated under the condition of control.The system adopts LabVIEW based multi-channel parallel data acquisition structure,realize the real-time data acquisition of the test data of the bearing system and the temperature of the thrust bearing,oil film thickness,the motor speed and the collected real-time data display,display screenshots of the interface and the analysis of the test data,processing,recording and preservation function,realize the sharing of data between different computer using DataSocket technology at the same time,so that a plurality of test personnel real-time recording and analysis of bearing system data.The test results show that the data acquisition system of the portable thrust bearing system has the advantages of stable and reliable operation,high accuracy of data acquisition and control,easy to check the data for the test personnel,and so on.