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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.

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slide1

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
The actors on stage...

ESS/CERN Fellow

ESS/CERN Fellow

ESS/CERN Fellow

ESS/CERN Fellow

slide3

SPL Cryomodule Workspace

https://espace.cern.ch/spl-cryomodule/default.aspx

slide4

SPL Cryomodule Working Group

8 meetings in 2012 (from March on)

slide5

SPL Cryomodule exhibition

  • (CERN, French in-kind meeting, June 2012)
assembly sequence
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)

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

1.2mm rattrapé par 2 vis contigües

Loadswhenclosing

242mm

Effect of a gap atclosure

CNRS-IPNO, P.Duchesne, P.Duthil

and at cern
…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

pressure relief devices
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

vacuum vessel detailed design
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
cold magnetic shield
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)

cryogenic distribution
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)

valve box and cryogenic scheme in sm18
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
valve box
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)

c ryo valve specs
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

cavity vacuum valves
Cavity vacuum valves
  • Choice discussed with TE-VSC (G.Vandoni)ready for procurement
cryomodule instrumentation
Cryomodule instrumentation

~100 T gauges

10 Elec.heaters

4 He level gauges

4 Piezos, tuners,HOM

Optical Wire Position Monitor

Pressure gauges

bunker integration studies at cern
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

bunker integration studies at cern1
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

slide22

Status of supporting system mock-up

See P. Azevedo’s and R. Bonomi’stalks

master schedule
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

summary 2012 outlook 2013
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
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