无线仪表在真空旋转干燥器中的应用

Application of Wireless Instrument in Vacuum Rotary Dryer

在保险粉的生产流程中,真空旋转干燥器的压力测量采用有线压力变送器测量,存在布线困难、精度不高、设备维护困难等问题。通过对有线压力变送器滑环测压和无线压力变送器测压两种方案的比较,介绍了无线压力变送器测压方案的优势;介绍了无线仪表的选型、连接、通信方式及无线网关的安装注意事项。应用表明:该方案有效解决了布线困难的问题,提高了测量精度,大幅降低了维护工作量,为提高产品质量、降低能耗提供了有效的技术支持。

Pressure of vacuum rotary dryer is measured by wire pressure transmitter in sodium hydrosulfite production process with problems of difficult wiring, low accuracy and difficult equipment maintenance, etc. Through comparison of two schemes of pressure measurement with wire pressure transmitter slip ring and wireless pressure transmitter, advantage of wireless pressure transmitter is introduced. Selection of wireless instrument type, connection, communication mode and attentions on installation of wireless gateway are introduced. Application result shows problem of difficult wiring is solved efficiently with scheme with improving measurement accuracy and decreasing maintenance workload. It provides efficient technical support to improve product quality and decrease energy consumption.