Superfluid Helium Tank Status

1
Superfluid Helium Tank Status

• Technical Interchange Meeting
• January 30 February 03, 2006
• Prepared by Dan Rybicki [phone]
• Presented by Trent Martin [phone]

2
Sub Contract - Jacobs Sverdrup

• Carry-over contract was needed to complete tank
• Jacobs Sverdrup prime
• Sole source Hans Bieri Engineering, Winterthur,
  CH
• Contract signed November 23, 2005
• Firm Fixed Price type of contract
• 5 major work milestones identified to full
  completion

3
Sub Contract - Jacobs Sverdrup

• Meetings with Hans Bieri Engineering GmbH (HBE)
  
• in Winterthur in early December, mid-December,
  and
• late January
• Rybicki, Tutt, Martin and Porter
• HBE operation is well underway and nearly all
• sub components are in-house from vendors

4
Super-Fluid Helium Tank
5
Super-Fluid Helium Tank Weld Nomenclature
Miscellaneous port welds
Close out weld (central ring to upper
inner shell)
Thru-Tube to Inner shell weld
Nozzle to end cap weld
Central Ring to lower vessel half weld
(inner weld)
Close out weld (central ring to upper
outer shell)
Cryo valve port weld
Central Ring to lower vessel half weld
(outer weld)
6
Super-Fluid Helium Tank - Weld Nomenclature
Tube end butt welds Serpentine HX
7
Sub Component Status Thru-Tube Bodies

• 8 flight tubes complete and delivered in
  November 8 nozzles
• Final 8 flight tubes complete and delivered in
  December 8 nozzles
• 8 flight spares currently in fabrication
  mid March delivery date

8
Sub Component Status Outer Shells

• Upper outer shell complete and in-house at HBE
• Lower outer shell complete and in-house at HBE

9
Sub Component Status Inner Shells

• Upper inner shell complete at HBE
• Lower inner shell complete at HBE

10
Sub Component Status Shell Final Machining

• Precision grinding of inner shell wall thickness

11
Sub Component Status Vessel End Caps

• All end caps (including spare) complete and
  in-house at HBE
• complete less nozzle holes cut

12
Lower Half Assembly Status

• Lower Inner Shell welded to Lower End Cap
• Currently preparing Lower End Cap to weld Lower
  Outer Shell

13
Sub Component Status Central Ring

• Central Ring complete and in-house at HBE
• No finished spares available

14
Sub Component Status Serpentine HX Tube

• Tube segments complete and in-house at HBE
• Welding procedure (tube end to tube end)
  complete (pending review by Rybicki)

15
Sub Component Integration Method Vessel Half

• Full scale mock up sections produced
• Nozzle to end cap and Thru-Tube to inner shell
  holes practiced

16
Sub Component Integration Method Vessel Half

• Thru-Tube hole alignment tooling developed and
  checked out

17
Sub Component Integration End Caps

• Mock up simulating nozzle to end cap welds

18
Sub Component Integration End Caps

• Early development weld on full scale end cap
• Weld to be fully robotic applied
• Weld joint alignment accomplished with internal
  back up tooling
• tooling not shown

19
Schedule
Date can be improved if Lower Half Integration
at SCL takes less than 12 weeks.