Recorded Results So Far
Over the company's initial trial period between August and October 2024 the NEST cleaning equipment has been utilised on 7 separate occasions. Permission has been received to utilise the equipment during already planned tank cleaning activities. The clients and vessels have not been noted on this document in order to respect client confidentiality. Using the equipment over the course of 7 individual operations and recorded trial time, 95% of confined space entry time into vessel tanks was prevented. The cleaning standards were also all recorded as acceptable ‘mud clean’ standard, as well as giving tank walls attention during use.
Analysis
When the team began this process, the main aim was to remove the multiple risks associated with confined space entry and specifically confined space entry for tank cleaning. Through extensive client correspondence it became very clear that the risk involved in tank cleaning needed to be reduced dramatically, and alternative methods for cleaning developed. The company wanted to design equipment that, as a minimum, reduced the risk of trips and falls from height, remove exposure to noxious or oxygen deficient atmospheres, eliminate dangers of flooding/drowning, and also increased the safety controls of using high pressure jetting equipment.
Over an extended period of time the team studied the usage of cleaning lances and all the associated risk involved. It was quickly established that the business wanted to create a tool that would allow for supported cleaning equipment and without the need for tank entry. From that point on the team worked on a specific solution which allowed for efficient cleaning – to the same standard that is achieved through standard tank cleaning, but without the need for entry and the associated risks.
What Swan & Co. has since researched and developed:
• Vessel tank hatch designs and variations with regard to connecting equipment
• Vessel tank hatch appliances, adaptable to all typed of tank hatches
• Cleaning lances and protective housings • Cleaning nozzles • Pressures rates associated with specific lances and cleaning nozzles
• Effectiveness to standards muds/wastes and other associated products carried within vessel tanks
116 | ISSUE 111 | MAR 2025 | THE REPORT
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