储油库工程SCADA系统的构成与特点

Structure and features of tankfarm's SCADA system

SCADA系统是以计算机为基础的生产过程自动控制与监控自动化系统,具备对生产运行参数的采集和处理、各类信号报警、设备运行操作控制、保护控制及参数调节等功能。大型储油库工程SCADA系统总体结构由管理层、控制层和现场层组成。详细介绍了各层构成、功能,以及现场总线设备、油罐液位自动计量系统、工业电视监控系统与SCADA系统及安防、消防系统联动等的设计特点。结合大型储油库工程SCADA系统的运行维护管理,提出了对输油泵出口阀、油库消防电动阀等需要及时提供反馈信号的电动阀,采取点对点的控制方式,以及在实现现场设备一键操作方面进行SCADA系统的进一步完善等建议。

SCADA system is an automatic system for the production process automatic control and monitoring based on computer.It integrates the multi-function including production operation data acquisition and processing,alarming for various types of signals,device control,protection control and parameter adjustment together.A SCADA system for a large-scale oil tankfarm is composed of management layer,control layer and field layer.The paper introduces the structure,functions and features of each layer in details.And its feature is illustrated in field bus device,tank liquid level automatic metering system,industrial TV monitor system and SCADA system connecting with safe protection and fire protection.Combined with the operation and maintenance features of SCADA system for large-scale oil tankfarm,the point-to-point control for electrical valve which works based on real time feedback is presented.Suggestions to further improve the SCADA system in one-key operation of field facilities are given.