Product category:
Shutdown, SIS and safety systems
News Release from: Industrial Technology Systems (ITS) | Subject: Churchover contract
Edited by the Processingtalk Editorial
Team on 10 August 2007
Safety and control system for natural
gas station
ITS has won a GBP640K contract to implement a dual redundant Siemens PCS7 control system, consisting of the Fire and Gas, Station Protection and Control Systems for a natural gas compressor station
National Grid is installing new facilities to enable the supply of natural gas from the Milford area of Wales to the National Transmission System Within the transmission system, the National Grid Churchover site is currently designed to receive gas from the North only, for onward delivery to Wales and the South West
This article was originally published on Processingtalk on 19 Mar 2003 at 8.00am (UK)
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AMEC has won the overall contract to upgrade the installation to support the proposed bi-directional flow of natural gas: the project requires the installation of a new gas compressor unit, new gas metering and new multi-junction valves including upgrades to the Fire and Gas, Station Protection and Station Control Systems.
Within this project AMEC has awarded Industrial Technology Systems (ITS), a Siemens solution provider, a GBP640K+ contract to design, configure, implement and test the PLC and SCADA hardware and software for the Siemens PCS7 control system based on Siemens PCS7 architecture.
The new control solution, designed by ITS engineers will be fully dual redundant and consist of the Fire and Gas, Station Protection and Station Control Systems.
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The solution will consist of 2 Siemens PCS7 servers, 3 Siemens dual redundant PCS7 controllers on a fault tolerant industrial Ethernet network, 2 operator stations, dual redundant I/O and power supplies.
The Fire and Gas System will be required to monitor all air spaces where a fire or accumulation of a potentially flammable gas may occur, to detect any hazardous events, to alert personnel and initiate timely executive actions in order to minimise the consequences of an event.
Connected to a number of detectors, the Fire and Gas System will interface with the Station Protection System to initiate the automatic shutdown of the plant should a hazardous event occur.
The system will monitor and collect Fire and Gas activity data such as flame, gas, rate of rise of temperature, and smoke detectors and provide the facility to expand this data into a Management Information System for reporting purposes.
The new Station Protection System will shut down the gas compressors in the event of a hazardous situation being detected by the F+G system.
It will continue to operate independently regardless of failures of any individual compressors.
The purpose of the protection system is to place the plant into a safe condition when the potential exists for an event to escalate into a catastrophic incident.
The main hazard associated with gas compression facilities is loss of containment of the gas following a consequential explosion.
The Station Protection System will act as a defence against such an occurrence as a gas escape by disposing of the gas inventory contained within the equipment via the control system.
The Station Control System will provide control and monitoring of the process gas flow between upstream and downstream stations, such that the operation of the whole station is controlled in a safe manner.
The Station Control System will also have executive control over the gas compressors and an interface with existing control systems, flow computers and a telemetry system.
The Safety Integrity Level required for each function in the plant control, shut down and control systems will be assessed, designed and implemented in accordance with the IEC 61508 and 61511 principles.
Malcolm Knott, Managing Director of ITS said, "We are delighted to have won this project and will be dedicated to delivering it successfully and strengthening our relationship with AMEC.
Our team is looking forward to further use of the technology, expanding our knowledge internally and applying our expertise in IEC 61508 to win more safety-related projects in the future".
Founded in 1991, Industrial Technology Systems (ITS), an independent industrial automation solution provider, specialising in seven complementary disciplines including Business Improvement Systems, Validation Services, Batch and DCS System, Process Control Systems, Machine Vision Systems, Manpower Services and Support and Regulatory Compliance Training.
From feasibility studies and consultancy through to full turnkey project implementation, validation services, support and training, the ITS team has the knowledge and experience to provide complete solutions to manufacturing and processing industries.
With accreditation to BSEN ISO 9001, ISO 90003 TickIT, the use of GAMP guidelines and compliance with FDA, ISA-88, ISA-95, IEC 61131 and IEC 61508 standards, customers can be confident in the quality of ITS services.
ITS has Approved Solution Provider Status with AspenTech, Citect, Cognex, Eurotherm, GE Fanuc, Honeywell, Mitsubishi, Rockwell, Schneider, Siemens, Werum Software and Systems, Wonderware and other leading suppliers.
As an independent company ITS can work with you to select the best solutions to meet your company needs.
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