Fluor are delighted to report that this month we presented the projects first monthly Quality Incentive Award. Decembers award being presented to Derek Edwards and Wayne Williams of Ledwood mechanical engineering LTD
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ECITB ACTIVE Project Management Competition
In July 2011, for the second time this year, the company entered a team into the Active Cup Challenge, a gruelling and intensive 3-day project management competition.......more
New Heater Technology for National Grid Gas
For some time now LMEL has been working with a Canadian based company Cold Weather Technologies (CWT) who have developed an innovative in-line heater design that they are piloting with National Grid Gas at several pressure letdown stations.......more
Pressure Vessels
Contract to Design and fabricate pressure vessels for Total Lindsey Oil Refinery comprising of, 2 Carbon Manoxide Adsorbers an Arsine Adsorber and Flash Drum,......more
RVP Improvements Project
Ledwood Mechanical Engineering Limited have recently completed a 'turn-key' project for the engineering design and field execution for the RVP Reduction Project......more
Case Study: Recent EPC Contract for a major FCCU upgrade.
In January 2007 LME was awarded a contract to carry out a major upgrade of an overseas client's FCC unit. Central to the upgrade was the fitting of a redesigned ellipsoidal head to the Spent Catalyst Regenerator together with a complete change-out of the vessel internals. LME's initial work-scope entailed the full engineering development of the UOP Schedule 'A' design commissioned by the client and the sourcing and procurement of all new equipment and components.
At an early stage in the project LME elected to manufacture the new head and all other non-proprietary items 'in-house' at its quayside facility in Wales. To minimise logistical interfaces a decision was made to have all other new materials and equipment delivered to just one central holding point at the same facility where it could be checked and inspected prior to subsequent onward delivery to the job-site in one large, dedicated shipping movement.
The project was planned such that all site works would be finalised during a client's scheduled T & I turnaround in Q3/4, 2008. However, it was vital that a maximum volume of work should be executed prior to 'oil out' to minimise the plant down-time. To safely facilitate this work LME worked closely with its client's operations personnel to develop a number of innovative engineering solutions, such as the use of preassembly / disassembly 'cassette' structures to permit the necessary on-site pre and post shutdown works to the new and old heads.
LME's SCOPE OF SUPPLY: Engineering
Mechanical and Detail Design of all new components and equipment including heads, cyclones & dip-legs, ducting, piping and structures etc.
Shipping and Lifting Studies for all major components.
Procurement Regenerator
Replacement Overhead Line and Expansion Joints
Redesigned Ellipsoidal Head complete with 14 No. two-stage Cyclones, Dip-legs and Plenum Chamber
Replacement VSS expansion Joint and equaliser pipes
Replacement Cyclone Dip-legs
Replacement Steam Distributors
Replacement Optimix Feed Distributors
PROJECT STATISTICS:
Overall project duration: 22 months
Fabrication Man-hours: 58,000
Pre-Turnaround Man-hours: 18,900
Turnaround Man-hours: 54,000
Turnaround Duration: 54 days
Peak Manning: 180 + supervision
Lost Time Incidents: ZERO PROJECT LOGISTICS:
Total Weight of Equipment and Materials supplied: 11,500 tonne
Heaviest Crane Lift: 450 tonne
Shipping
95% of new equipment and materials was shipped direct from LME yard in one movement co-ordinated by LME. A 'Jumbo' heavy lift vessel transported the 450 tonne head and 400 tonne of other components directly from LME works to client's quay where specialist contractors were engaged to execute the onward movement to job-site.
Construction
LME executed the detailed planning and preparation for the Turnaround, preparing a Primavera Level 5 Schedule and Histogram, Method Statements, Lifting Studies, Risk Assessments etc. It co-ordinated the timely mobilisation of over 200 expatriate personnel, sub-contractors and construction equipment (including a 1200 tonne mobile crane) and project managed the event to a safe conclusion, within an acceptable schedule and budget.
