SCADA Station Control System

Ⅰ System overview:

The station control system is SCADA (Supervisor Control And Data Acquisition) gas monitoring and data acquisition system, which is a comprehensive control system integrates measurement technology, computer technology and communication technology, which can realize real-time central monitoring and management scheduling of gas pipeline network. .

The SCADA station control system integrates advanced PLC technology, RTU technology, field-bus technology, network communication technology, database technology, SCADA/HMI technology, C/S (B/S) technology, etc. , monitoring, management and scheduling of the whole process of metering, transmission and distribution, and pressure regulation, which can realize the automatic collection, classification, transmission, sorting, analysis and storage of production information and pipe network conditions, and optimize the scheduling and fault analysis of pipe network transmission and distribution. , Provide scientific means to assist decision-making, and promote gas production, transmission and distribution management to be safer, more accurate and more efficient.

Ⅱ System and composition:

2.1 SCADA station control system

Ⅲ. The main measuring and control parameters were as follows:

1)the LNG storage tank and pressure measurement. Can a transfinite alarm and interlock shut down the corresponding valve.
2)LNG station pressure measurement.
3)air temperature, water bath heater outlet temperature measurement. Outlet temperature is too low alarm and interlock shut down into the liquid valve.
4)the outbound gas pressure and flow measurement, gas amount of add smelly control automatically.
5)production process unit area set concentration of combustible gas detection.
6)flame detector signals
7)fire control system and interlock