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Hima-Sella is fitting a TUV-certified HIQuad H51qHS emergency shutdown system (ESD) at fertiliser manufacturer Growhow’s Teesside Billingham plant.

Growhow UK is a fertiliser manufacturer and a major supplier to the process-chemicals industry.

Its Billingham chemical plant produces and stores ammonia, nitric acid and ammonium nitrate.

Hima-Sella supplied the existing ESD in the 90s: a TUV-certified Hima Planar F-rack mounted solid-state fail-safe logic system.

This was installed behind a large operator wall mimic in the Weak Nitric Acid 4 control room.

The system operated very well for many years with little maintenance required, but the programmable upgrade provides extensive diagnostic and sequence of event (SOE) reporting facilities and dedicated communications to the distributed control system (DCS).

During extensive technical consultations with Growhow UK’s engineers, the TUV-certified HIQuad H51qHS system, which can meet SIL3 requirements, was selected as a suitable replacement for the hardwired system.

With dual CPUs and single failsafe I/O configured in this case to meet SIL 2, it will be mounted in the same cabinet space and use existing terminations in the adjacent marshalling panel.

The PLC will have dual Ethernet-communications, allowing vital diagnostic information to be transferred to the distributed control system (DCS), to operator HMI level.

A separate, standalone PC with Wizcon Logline will provide independent sequence of events recording (SOE), allowing operators and managers to see the chain of events for any given situation.

This vital diagnostic tool allows operators to quickly and confidently assess plant issues and resolve them to ensure continuous and safe plant operation.

Hima-Sella is an independent designer and supplier of integrated safety-critical control and automation systems and specialises in delivering the following:

  • Burner Management (BMS)
  • Control & Instrumentation Panels & Desks
  • Customer Information Systems (CIS)
  • Data Logging
  • Distributed Control (DCS)
  • Emergency Shutdown (ESD)
  • Fail-safe Radio Remote Control
  • Fire & Gas Detection
  • High Integrity Pressure Protection (HIPPS)
  • Interface Cabinets
  • Marshalling Cabinets
  • Panel Build
  • Plant Mimics & Displays including large TFT LCD screens
  • Programmable Logic Controllers (PLC)
  • Programmable Electronic Systems (PES)
  • SCADA
  • Telemetry Services includes Consultancy; Project Management; Design; Engineering; Manufacturing; Testing; Commissioning; Technical Support; Customised Training. Industries include Oil & Gas; Nuclear; Petrochemical; Steel; Transport; Defence and Chemical.

In 2001, Hima-Sella was awarded the first ever CASS certificate (CASS00001), from SIRA, for compliance with IEC61508 Functional Safety Management and our Quality Management System has been approved to BS EN ISO 9000 since 1989.

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