基于工业物联网无线控制阀门电动驱动装置研究

Research on wireless control valve electric actuator based on industrial internet of things

针对传统阀门电动驱动装置控制架构臃肿、安装现场耗时、紊乱、造价高昂等问题,提出一种基于工业物联网的无线控制阀门电动驱动装置,通过设计无线天线引入装置结构和开发控制系统软硬件完成阀门控制信号的传输,实现阀门电动驱动装置结构一体化和远程无线控制。研究发现:基于传播频段为470 MHz的Lo Ra无线控制网关及特定测试环境下,无线控制阀门电动驱动装置在一定距离内信号稳定,最远测试距离可达1.2 km;应用于阀门流量流阻测试系统的无线控制方法可有效地解决敷设线缆、架设电缆桥架、接线查线、项目周期长、成本偏高等实际工程量大的问题,同时通过精准掌握阀门和管路系统的实时运行情况,实现阀门流量特性试验、阀门全生命周期监测和物联网的全面结合,为工业阀门物联网技术的应用提供了重要依据。

For the problems of bloated control architecture,time-consuming installation site,disorder and high cost of traditional valve electric actuator,a wireless valve electric actuator based on the industrial Internet of Things was proposed.The transmission of valve control signal was completed by designing the structure of wireless antenna lead-in device and developing the hardware and software of the control system to achieve the structural integration and remote wireless control of the valve electric actuator.It is found that under the LoRa wireless control gateway based on 470 MHz propagation frequency band and the specific test environment,the signal of the electric actuator of the wireless control valve is stable within a certain range,and the farthest test range can reach 1.2 km.The wireless control method applied to the valve flow and flow resistance test system effectively solves the problems of large actual quantities such as cable laying,cable tray erection,wiring inspection,long project cycle,high cost.At the same time,by accurately mastering the real-time operation of the valve and pipeline system,the comprehensive combination of valve flow characteristic test,valve life-cycle monitoring and the Internet of Things is realized,which provides an important basis for the application of Internet of Things technology for industrial valves.