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Control system for nr.1 saturated steam boiler with biomass combustion system.

SIL3 PLC monitor all safety trips of boilers and furnace. The same PLC is dedicated to boiler process control and furnace combustion control. Boiler is equipped with instrumentation suitable for operation without human supervision up to 72 hours. Control system manages all checks and safeties needed to allow boiler operation without supervision and grants the period of exoneration cannot exceed 72 hours.

Country: Italy
Delivery date: 09/2014 - 01/2015
Field: Biomass
Supply description:
Nr.1 Burner Management System (BMS)
Nr.1 Boiler Control System (BCS)
Nr.1 Motor Control Center
Nr.1 Variable Frequency Drives panel
Automation electrical documents
Automation software applications
Controllers & Supervision:
BMS and BCS: Siemens S7-300 F, SIL3 and standard S7-300 I/O cards
Schneider Electric CitectSCADA

SYSTEM ARCHITECTURE

Overall system is made with separate panels for control system, motor control center and variable frequency drives (VFD). All VFDs are controlled from PLC with ProfiBus. Single Ethernet LAN (control network) connects PLC to single HMI station. Two POE cameras connected to control network allow operator to monitor furnace combustion chamber and boiler status; streaming data from cameras are integrated into HMI application.