Revamps 2024 Issue

(especially in cases of smaller diameter) and the smooth instal- lation of the cartridge bundle inside the column. Advantages:  Proper sealing of cartridge trays with column shell. v Increased column active area for sieves, valves, and fitments. w Ensures safe transportation of installed cartridge tray inside the column, minimising the risk of damage. x Flexibility of changing a definite range of gaskets without any modifications in trays. EIL-designed interlocking arrangement: The cartridge tray bundles are placed on support cleats welded to the column shell, posing a risk of dislodging during transportation. To address this concern, a cartridge tray interlocking arrange- ment has been devised. This secures the tray bundles in place and prevents movement within the column during transit. The existing design has been modified to incorporate this interlocking arrangement. Advantages:  Ensures safe transportation of installed cartridge tray inside the column, minimising the risk of damage. v Streamlines the installation process of cartridge tray bun- dles, significantly reducing on-site efforts and challenges. w Facilitating the safe transportation of the installed car- tridge tray inside the column to the site, this approach safe- guards column integrity by utilising pre-installed bundles as support braces, preventing deformation during transit. Conclusion Early conceptualisation of the execution methodology plays a crucial role in cartridge tray design and engineering to execute the installation smoothly. Proper attention and care must be taken at every step to ensure the design and other requirements of the physical equipment are met. Some basic but critical aspects have been described in this article for executing the job from conceptualisation to final installation. The new proposed execution philosophy emphasises ‘single point vendor responsibility under the same RFQ for column and tray and installation at workshop’ to ensure the smooth execution of the project. The pre-installed cartridge tray bundle with EIL’s sealing and interlocking arrangement is a novel and economical solution to enhance HSE and quality in cartridge tray installations, while simultaneously reducing overall installation costs and project timelines by minimising the need for modifications and reorders. Acknowledgement The author would like to thank the management of Engineers India Limited wholeheartedly for the support and encouragement in develop- ing this work. He is also thankful and fortunate enough to get constant encouragement, support, and guidance from his colleagues who helped him in successfully completing this work. Urmilesh Tiwari is Senior Manager in Engineers India Limited’s Mass Transfer Mechanical and System Department in the Equipment Division. He has more than 16 years of experience in design, engineering, and troubleshooting of column trays, internals, and other mass transfer equipment in grassroot and revamp projects. He holds a Bachelor degree in mechanical engineering and a Diploma in mechanical engi- neering with specialisation in power plant engineering. Email: urmilesh.tiwari@eil.co.in

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