SLAC LCLS-II 2K cold box

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SLAC LCLS-II 2K cold box

Outstanding design issues

  • move 2k cold box north to create clearance for transfer line
  • clear all interferences created by moving cold box north (move control cabinets and manway)
  • make configurations of model to show what is in scope of AL, remote assembler, shipper, field installer, and operator
  • make it possible to add shear pins to assembly AFTER delivery to reduce maximum shipping height
  • add straightener assemblies to CC inlet spools
  • thermal relief design iteration
  • heater final design based on finned tubing and heater cartridge quotes
  • MLI attachment
  • details of instrumentation tubing and panel arrangements
  • incorporate internal shipping and seismic supports as a result of piping flex analysis


Questions

  • can overall height be reduced any lower than 14 ft?
  • can we get a more accurate weight estimate?
  • is it possible to ship in this configuration?
  • what will be the expected shipping loads (accelerations)?
  • can we cut the shipping costs a LOT by making small changes to the dimensions?


Completed

  • (in coordination with Randy) decide where to locate the process relief/blowdown; we have decided to move this into the scope of the interface box
  • (in coordination with Cindy) decide whether to move north to create clearance for next transfer line; YES
  • (in coordination with Cindy) decide whether to coordinate 9-1/4" bayonet heights and locations with next transfer line; NO these bayonet heights will not be coordinated
  • add 6" o-ring ANSI flange for diffusion pump connection
  • publish corrected model of CC inlet and outlet spools to allow the flex analysis to proceed
  • lower 9-1/4" bayonets and valves to reduce maximum shipping height
  • move process relief/blowdown iteration out of the scope of the 2k box
  • make initial estimate of shipping size and weight
  • How to attach spools to outlet nozzles of small CCs (especially CC6)
  • Manway downsize; NO