Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Turnkey M&E Installation Ww Tw


Published on

Turnkey M&E Installation Ww Tw

Published in: Technology, Business
  • Be the first to comment

  • Be the first to like this

Turnkey M&E Installation Ww Tw

  1. 1. Turnkey Solutions – Case Study Refurbishment of ø20m fixed half bridge column mounted primary settlement tank scrapers
  2. 2. Introduction <ul><li>Scottish Water urgently needed to replace two scrapers that had fallen into disrepair at a sewage treatment works near Glasgow. </li></ul><ul><li>A main contract was awarded to GMJV who sourced tenders from the marketplace for the refurbishment of the scrapers. </li></ul><ul><li>As a result Xm Services became involved in the tendering process and was eventually awarded a contract to undertake the refurbishment. </li></ul>
  3. 3. Poorly performing primary settlement tank scraper
  4. 4. Primary settlement tank scraper with collapsed scum skimming device Sep Oct Nov Dec Jan Feb
  5. 5. The root cause of poor performance in primary treatment process was the use of peripheral rollers and scum board to support scum skimming arrangement. The peripheral rollers derailed from the scum board generating excessive forces at the point where the scum skimmer arrangement was fixed to the centrally located diffuser drum causing it to collapse.
  6. 6. Detailed Design <ul><li>In order to improve the robustness of the scraper the scum skimming arrangement was designed so that it is supported by the rotating scraper arm </li></ul>
  7. 7. Manufacture of Scrapers <ul><li>Xm Services worked closely with both its suppliers and GMJV throughout the manufacturing phase: </li></ul><ul><li>Conducting regular project schedule reviews and updates to monitor and control the manufacturing process </li></ul><ul><li>Perform factory acceptance tests to ensure conformance with: </li></ul><ul><ul><li>design documentation </li></ul></ul><ul><ul><li>WIMES 2.01 data sheets </li></ul></ul><ul><ul><li>EC standards </li></ul></ul>
  8. 8. Manufacture of Scrapers
  9. 9. Scraper Refurbishment <ul><li>Decommissioning, removal and disposal of existing scrapers: </li></ul><ul><li>Preparation of site risk assessments, method statements and lift plan for inclusion within the contract H&S file </li></ul><ul><li>Site supervision and induction of all personnel </li></ul><ul><li>Provision of confined space qualified personnel to work inside the settlement tank </li></ul><ul><li>Provision of qualified first aider </li></ul><ul><li>Conducting daily toolbox talks </li></ul><ul><li>Daily issuing and closure of permits to work </li></ul><ul><li>Cranage and execution of contract lift </li></ul><ul><li>Scrap disposal </li></ul>
  10. 10. Sep Oct Nov Dec Jan Feb
  11. 11. Sep Oct Nov Dec Jan Feb
  12. 12. Sep Oct Nov Dec Jan Feb
  13. 13. Sep Oct- Nov- Dec Jan Feb
  14. 14. Scraper Refurbishment <ul><li>Installation and commissioning new scrapers: </li></ul><ul><li>Unloading, unpacking and storage of equipment </li></ul><ul><li>Assembly </li></ul><ul><li>Installation </li></ul><ul><li>No load site acceptance tests </li></ul><ul><li>Full load commissioning tests </li></ul><ul><li>Customer acceptance and handover </li></ul>
  15. 15. Sep Oct- Nov- Dec Jan Feb
  16. 16. Sep Oct- Nov- Dec Jan Feb
  17. 17. Sep Oct- Nov- Dec Jan Feb
  18. 18. Sep Oct- Nov- Dec Jan Feb
  19. 19. Sep Oct- Nov- Dec Jan Feb
  20. 20. Sep Oct- Nov- Dec Jan Feb
  21. 21. Sep Oct- Nov- Dec Jan Feb