Product category:
Compressors and Air Treatment
News Release from: Beko Technologies | Subject: Drypoint M
Edited by the Engineeringtalk Editorial
Team on 25 December 2003
Dry air ensures safety valve operation
Shell UK is using a Drypoint M membrane dryer system on its Brent Bravo oil and gas platform to help ensure the performance of its subsea safety isolation valve.
Beko Technologies has supplied a Drypoint M membrane dryer system to Shell UK's Brent Bravo oil and gas platform to help ensure the performance of its subsea safety isolation valve The dryer will ensure a continuous supply of high quality moisture-free compressed air to the air pumps that drive the hydraulic power unit responsible for operating the valve
This article was originally published on Engineeringtalk on 26 Nov 2001 at 8.00am (UK)
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Working in the North Sea, one of the world's harshest oil and gas production environments, all equipment must be able to provide safe, reliable and continuous performance round the clock.
As the Drypoint M does not need electricity it is suitable for hazardous areas such as an oilrig.
Located 175m from the platform in 141m of water, the subsea isolation valve is designed to control and cut off the gas supply to the rig either for safety reasons or during platform maintenance.
The Beko Drypoint M system is due to be installed into the existing compressed air supply in the rig's store module, which also houses the unit that supplies hydraulic fluid to manage the valve.
The use of dried air ensures that no moisture can enter the system, which might affect its efficiency and cause long-term corrosion and component deterioration.
Drypoint M takes moist compressed air and passes it through a series of highly selective hollow fibre membranes.
Water vapour diffuses through the membranes to the outside.
At the Drypoint M module outlet a partial flow of compressed air is diverted and released and the relative humidity of the purge air falls dramatically.
The purge air flows back over the outer surface of the hollow fibres.
As only water vapour can penetrate the membrane, the differences in relative humidity between compressed and purge air cause humidity exchange to occur, drying the compressed air. Request a free brochure from Beko Technologies ...
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