Product category:
Gauges, Indicators and Instruments
News Release from: ABB Automation Tech (Instrumentation + Automation)
Edited by the Engineeringtalk Editorial
Team on 02 June 2006
Analytical package monitors nuclear
power
ABB has supplied analytical equipment worth over GBP 200,000 as part of a wider upgrade at a British nuclear power station.
ABB has supplied analytical equipment worth over GBP 200,000 as part of a wider upgrade at a British nuclear power station The ABB instruments check the water leaving the station's condensate polishing plant to ensure that it is of sufficiently high quality to re-enter the plant's steam cycle
This article was originally published on Engineeringtalk on 17 Jul 2008 at 8.00am (UK)
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Dual compartments protect temperature transmitters
The TTF350 temperature transmitter is suitable for heavy-duty applications in industries such as oil and gas, power, cement, waste incineration and chemical processing.
About half of all forced outages in modern power plants result from corrosion within the steam turbine loop.
This means that reliable, cost-effective power supplies depend heavily on monitoring and maintaining the purity of the water used in the process.
All of the equipment was delivered prefitted inside its own dedicated cabin.
Further reading
Temperature sensors survive refinery environment
Each thermocouple head incorporates Type N protection of the sensor connections and nonsparking protection for hazardous zones where an explosive gas mixture is not expected, but could occur.
Electronic recorder provides easy data access
The SM1000 electronic recorder has eliminated the need for the company to sift through paper charts and has opened up new possibilities for interrogating and analysing recorded data.
This approach enables ABB to carry out most of the assembly work off-site, thereby minimising any on-site disruption.
Manufactured from glass reinforced polyester (GRP), the cabin measures 6.5 metres in length by 3.5 metres wide and 2.5 metres high.
The power station's owner specified that the alarms and wiring to the instruments in the cabin had to be specially designed to accommodate an anticipated future change in the site's distributed control system.
As an added precaution, the cabin includes a demineralised water manifold, which acts as a buffer that can feed water into any instrument to ensure that the equipment does not run dry in the event of a failure or shutdown.
The number of instruments supplied reflects the need for redundancy in nuclear systems, with each instrument having sufficient backup protection to ensure smooth operation in the event of a fault.
Alarms have also been included to alert operators of potentially dangerous high-temperature and low-flow conditions.
Equipment fitted inside the cabin includes sensors and transmitters for the measurement of pH and conductivity, cation conductivity and dissolved oxygen, as well as sodium and silica monitors.
Also included are 64 gas PurgeMaster flowmeters, which ensure efficient purging of control lines and instrument enclosures.
Operators are provided with a clear view of process conditions by two of ABB's large-screen SM3000 multipoint videographic data recorders.
Featuring a host of security measures to protect the integrity of recorded data, the SM3000 can display data can be displayed in a variety of formats, with strip and circular chart, bargraph and process views all included as standard.
The clarity of the SM3000's 12.1in (30cm) backlit colour display means the information can be easily read, even at a distance from the unit.
ABB has over 25 years experience in building packaged system assemblies and can offer a wide choice of standard designs which can be customised to suit individual applications.
Supplied fully premanufactured and pretested, ABB's packaged analytical systems are delivered ready for operation.
Only connection to samples, drains, power supply and signal outputs is necessary on site.
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