1 / 24

The SPL Short Cryo -module: Status Report

The SPL Short Cryo -module: Status Report . V.Parma, CERN, TE-MSC On bahalf of the Cryomodule development team. SPL seminar December 2012, 6-7 December 2012 , CERN. The actors on stage. ESS/CERN Fellow. ESS/CERN Fellow. ESS/CERN Fellow. ESS/CERN Fellow.

quanda
Télécharger la présentation

The SPL Short Cryo -module: Status Report

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. The SPL Short Cryo-module:Status Report V.Parma, CERN, TE-MSC On bahalf of the Cryomodule development team • SPL seminar December 2012, 6-7 December 2012, CERN

  2. The actors on stage... ESS/CERN Fellow ESS/CERN Fellow ESS/CERN Fellow ESS/CERN Fellow

  3. SPL Cryomodule Workspace https://espace.cern.ch/spl-cryomodule/default.aspx

  4. SPL Cryomodule Working Group 8 meetings in 2012 (from March on)

  5. SPL Cryomodule exhibition • (CERN, French in-kind meeting, June 2012)

  6. Assembly sequence 1- String of cavities outside the clean room 2- Mounting of the magnetic shields 4- Mounting of the cryogenic distribution 3- Mounting of the tuners and inter-cavity connections 5- Mounting of the coupler cooling line 6- Mounting of the thermal shield 7- Insertion in the vacuum vessel 8- Closing the vacuum vessel Design by CNRS-IPNO (S.Rousselot)

  7. 2 parts vacuum vessel • Material is low-carbon steel (LHC type) • Vessel as magnetic shielding: need for degaussing? • Flanges in St.steel (304L)

  8. Mechanical analysis at CNRS 1.2mm rattrapé par 2 vis contigües Loadswhenclosing 242mm Effect of a gap atclosure CNRS-IPNO, P.Duchesne, P.Duthil

  9. …and at CERN Mounting of the lid: effect of flat flanges shape imperfections; CERN approach Deformed shape: Load case 1 Load case 2 See Paulo Azevedo’s talk

  10. Pressure relief devices • First risk analysis made • HSE now in the loop (C.Parente), several meetings took place • Sizing of safety relief devices: • Burst disks to protect helium circuits • Pressure relief plate to protect insulation vacuum vessel See Paulo Azevedo’s talk

  11. Vacuum vessel detailed design • Specification detailed drawings in preparation at CNRS-IPNO • Drawings approval in progress • Consultation of companies started • Procurement to be launched beginning 2013 by CNRS-IPNO

  12. Cold magnetic shield Status: • Following feedback from RF (T.Junginger), a re-design has been proposed by CNRS and approved, ready for detailed drawings Double layer Cold magnetic shield Coupler side Tuner side Design by CNRS-IPNO (S.Rousselot)

  13. Cryogenic distribution 2 phase tube (line X) LHeLevel gauge Pumping line (XB) z y To cold box and SM18 Vapourscollector Liquid container x Courtesy CNRS-IPNO (S.Rousselot, P.Duthil)

  14. Valve box and cryogenic scheme in SM18 • Control valves grouped in a single valve box • Valve box needed also for interfacing CM to cryogenic distribution in SM18 • Overpressure safety devices

  15. Valve box Status: • Conceptual design finished • Valves being ordered by TE-CRG • Heater on the thermal shield will warm up thermal shield helium to the CM needs (50K) design in progress Vacuum vessel Vacuum barrier From SM18 To CM Thermal shield Courtesy CNRS-IPNO (S.Rousselot, P.Duthil)

  16. Cryo valve specs • Coupler cooling valve: • Use : Liquid/gas helium • Diameter: DN2 • WEKA standard design: h=875mm - PN25 - Standard sealing to outside - no thermal contact, no G10 spindle rod • Po=normally closed actuators • Kv max as controlled valve: 0.15m3/h • Required max. Kv at 100% stroke: 0.06 m3/h (common), 0,02 m3/h (single) • Required min. Kv at 5% stroke: 0.002 m3/h • Equal percentage • Quantity: 1 • JT valves (common and single valves): • Use : superfuid helium • Diameter: DN4 • WEKA standard design: h=875mm - PN25 - no thermal contact, no G10 spindle rod • Po=normally closed actuators • helium guard seal for subatmospheric applications • Kv max as controlled valve: 0.6m3/h • Required max. Kv at 100% stroke: 0.1 m3/h (common), 0,02 m3/h (single) • Required min. Kv at 5% stroke: 0.001 m3/h • Equal percentage • Quantity: 4 • Cool-down valves: • Use : liquid/gas helium • Diameter: DN4 • WEKA standard design: h=875mm - PN25 - Standard sealing to outside - no thermal contact, no G10 spindle rod • Po=normally closed actuators • Kv max as controlled valve: 0.6m3/h • Required max. Kv at 100% stroke: 0.18 m3/h (common), 0,02 m3/h (single) • Required min. Kv at 5% stroke: 0.004 m3/h • Equal percentage • Quantity: 4 9 cryo valves Needs agreed with TE-CRG (R.Van Weelderen)  TE-CRG can start procurement

  17. Cavity vacuum valves • Choice discussed with TE-VSC (G.Vandoni)ready for procurement

  18. Cryomodule instrumentation ~100 T gauges 10 Elec.heaters 4 He level gauges 4 Piezos, tuners,HOM Optical Wire Position Monitor Pressure gauges

  19. Bunker integration studies at CERN SM18 bunker RF distribution Cryo-module Valve box Cryo line interface Study by P. Martinez Yanez and B.Riffaud, EN-MME

  20. Bunker integration studies at CERN Study by P. Martinez Yanez and B.Riffaud, EN-MME Pending work: • Full integration study (access, services, safety evacuation of He, …) • Design and construction of an inclination table (0%-2%) for the cryomodule • Study the opening of the CM top part of vessel for in-situ maintenance and construction of the handling equipment CRYOMODULE 2% INCLINATION SPECIAL LENGTH CORRESPONDING TO CRYOMODULE ANGLE

  21. Status of supporting system mock-up See P. Azevedo’s and R. Bonomi’stalks

  22. Master Schedule Preparation of SM18 infrastructure (cryogenics, RF, clean-room) Cavities production Cavities processing/RF testing RF couplers Clean room assembly of string Cryomodule (& assy tooling) design Cryomodule fabrication Cryomodule assembly Start cryomodule RF testing

  23. Summary 2012, Outlook 2013 • Notable progress in the design of the CM this year: • Vacuum vessel: almost ready for procurement • Magnetic shield: design finalized • Cryogenic piping: design well progressed • Thermal shield: design in progress • Cryogenic and vacuum valves: choice made, procurement can start • Instrumentation: preliminary list • Assembly tooling: • Concepts only: work needs to start now • Valve box: • Conceptual design made • Major milestones for 2013 • Launch procurement of vacuum vessel , early 2013 • Other parts to be ordered by mid 2013 • Design of assembly tooling by mid 2013

More Related