We announced last month we had signed an agreement to purchase the
Mobrey line of measurement products from Emerson, the U.S.-headquartered
global technology and engineering company.
CFB Boiler
A key product in the Mobrey product range, which is now exclusively
distributed by us, prior to full acquisition, is the Hydrastep 2468
Electronic Gauging System for steam drum level measurement.
The Hydrastep technology was a customer-led development and its history
spans over five decades. Nowadays, the Hydrastep 2468 is seen by many as
an industry standard and its reliability is second to none. To date,
the Hydrastep 2468 has been installed in over 6,000 critical
applications globally, including power stations, refineries,
petrochemical plants and sugar refineries – in fact everywhere where
steam boiler water feed levels are critical for safety. Any steam
raising plant will use steam drums, and these steam drums require
accurate and reliable level measurement to ensure the safety of the
plant.
One such example is in a new 400,000 tonne capacity waste management
plant in France. The waste treatment plant was already using
differential pressure (DP) transmitters to measure and control the level
within their two steam drums. However, after a recent review, the
plant’s insurers were concerned that if the DCS was to fail, the DP
measurement would be lost and there would be no way of knowing the level
within the steam drum. This could lead to the steam drum running dry,
or rising level and water entering the steam turbine, both critically
dangerous situations.
The insurers insisted on an additional measurement on the steam drum
which would be independent of the DCS. The plant’s insurers required
that the plant upgrade their safety related instrumentation throughout
the site and approached Mobrey for a solution. The Hydrastep system was
fitted to each steam drum to ensure the continual measurement of the
steam drum level, with remote displays and alarms in the control room
for indication, independent of the DCS.
The Wall