Cygnus Instruments originated in the marine industry, working closely with ship surveyors and commercial divers. With four decades of experience, their understanding of the industry's challenges is unparalleled. Cygnus is globally recognized as the pioneer of user-friendly and highly accurate ultrasonic testing (UT) equipment.
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Solution to Scrubber Corrosion
Exhaust Gas Cleaning Systems (EGCS), commonly known as “scrubbers,” are installed on thousands of vessels worldwide to comply with the IMO 2020 Sulphur Cap.
However, these systems present certain challenges, including EGCS corrosion. The wash water from scrubbers, which contains filtered pollutants, is acidic and highly corrosive.
The combination of corrosive scrubber wash water and the high temperatures of exhaust gases further undermines the structural integrity of the scrubber and associated pipework, such as the SOx scrubber discharge water line. Regular inspection of these components for signs of corrosion is essential.
Ultrasonic thickness gauging offers a simple, cost-effective, and reliable method for proactive preventative maintenance on scrubbers. Areas of particular concern on vessels include the scrubber discharge outlet and the overboard pipe.
The Cygnus 6+ Pro includes a range of intuitive features, such as three measuring modes, live A-Scan, B-Scan, and a Radial Points function for further investigation of heavily corroded areas.
The A-Scan display provides visual verification of back-wall echo signals and allows manual adjustment of gain. The 6+ includes comprehensive data logging to record measurements for streamlined reporting and post-analysis.
Hatch Cover Weather Tightness
Cygnus has applied its marine expertise and ultrasonic technology to create an efficient solution for assessing cargo hatch covers and watertight seals to detect water leaks and ensure weather tightness.
The Cygnus Hatch Sure Ultrasonic Leak Detector is ABS type-approved and recognized by P&I clubs. It is designed to perform inspections with cargo in place. Compared to traditional testing methods such as hose or chalk testing, Cygnus Hatch Sure is more time-efficient and cost-effective for testing bulk cargo carriers.
Its durable transmitter houses 19 ultrasound emitters (40 kHz) with six selectable pre-set power levels, enabling adjustment for various test area sizes, including confined spaces. The system is lightweight and includes built-in neck and wrist straps for hands-free operation.
Furthermore, the Cygnus Surface Range of thickness gauges can read through coatings up to 20mm thick, eliminating the need to remove essential and costly protective coatings or epoxy that protect against external scrubber corrosion.
For heavily corroded metals with minimal or no remaining coating, Cygnus PLUS gauges, featuring Echo-Echo and Single-Echo measuring modes and the Measurement Stability Indicator (MSI™), provide quick and reliable readings.
This information has been sourced, reviewed and adapted from materials provided by Cygnus Instruments Limited.
For more information on this source, please visit Cygnus Instruments Limited.