2. Neutrino Platform Proximity Cryogenics 68th EHN1 Cryogenics Integration TE-CRG
09/02/2017
J.Creus Prats - CERN

3. LAr Purifier regeneration infrastructure External cryogenics layout
Contents
IT4200 status
Control system
LAr Purifier regeneration infrastructure
External cryogenics layout
Platforms
09/02/2017
J.Creus Prats - CERN

4. Milestones for NP-02/NP-04
IT4200 status
Milestones for NP-02/NP-04
Engineering wk15/2017 through wk37/2017
Manufacturing wk27/2017 through wk50/2017
Installation NP-04 wk45/2017 through wk02/2018
Installation NP-02 wk47/2017 through wk04/2018
Achievements
Preliminary design review first 4 boxes for NP-01 wk06/2017
Risks and changes
Platforms: definition of valve box size for NP-02/04
Short term focus
Detail engineering for NP-01 valve boxes
Preliminary engineering for NP F1 ( impact on NP-02/04)
09/02/2017
J.Creus Prats - CERN

5. Preliminary definition of racks requirements
Control system
Preliminary definition of racks requirements
Preliminary definition of cabling requirements
Analysis of component lists
Preparation of interface control documents and drawings dedicated to specify :
Cabling Campaign 3 ( long cables from racks to field boxes)
Cable trays
Cabling Campaing 4 ( short cables from field boxes to instrum.)
09/02/2017
J.Creus Prats - CERN

6. Preliminary definition of racks requirements
Control system
Preliminary definition of racks requirements
9 racks for NP02 and 9 racks for NP04:
2 racks dedicated to 400/230VAC Power distribution
1 rack dedicated to 24V Power distribution
1 rack dedicated to Safety Chain Converters
2 racks for the DI/DO interface
2 racks for the AI/AO interfaces
1 racks for the control devices (plc, cards, couplers)
1 rack to control external devices added to NP02 cabinet
09/02/2017
J.Creus Prats - CERN

7. Preliminary definition of cabling requirements 2 phases cabling:
Control system
Preliminary definition of cabling requirements
2 phases cabling:
Ph1 during Cabling Campaign 3: Sept-Oct 2017 (NE48 cables from cabinet to field boxes)
Ph2 during Cabling Campaign 4: Jan-Feb 2018 (cables from field boxes to instrumentation)
Detail:
Estimated 50 NE48 cables for NP02 and 50 NE48 cables for NP04
Defining the usage of connectors(with Nicolas Vauthier) for the cables to pull between field boxes and instrumentation with the goal to be as fast as possible in the cabling when the valve boxes will be installed
09/02/2017
J.Creus Prats - CERN

8. LAr purifier regeneration infrastructure
Study to purchase Gas mixer to provide GAr/H2 up to 180m3/h with selectable % Hydrogen ratio
Benefits:
No need of ordering, handling, storing and refilling 14 bottle batteries
Flexibility during proximity cryogenics commissioning activities
Cost reduction after 6 regeneration operations
Scheduled 4 purifier activation
Scheduled 2 to 4 purifier regeneration ( subject to supply contamination)
Impact:
Implementation together with HSE and FGSO of external cage with flammable gas qualification
Dedicated LAr tank and vaporizer for the supply of argon
09/02/2017
J.Creus Prats - CERN

9. LAr purifier regeneration infrastructure
CERN requirements:
Mixer capable to work from 0.5% to 2.5% of Argon/Hydrogen volumetric concentration
Volumetric flow of 180 nm3/h
The machine under study:
A mix of 0.5% with accuracy of +/-0.3% ( concentration can oscillate min 0.2% hydrogen, max 0.8% hydrogen)
Mixing rate of the device up to 5% hydrogen
Flow of 200 nm3/h at pressure with inlet pressure of 11bar from both Hydrogen and Argon supplies
The mixing valve is a pneumatic positioner operated proportional mixing valve.
Control with closed loop from the hydrogen analyzer, to compensate for inlet temperature effects.
Impacts on implementation:
Tank, vaporizer and associated piping shall be rated 20barg.
Other piping rated PN10 shall be isolated during regeneration
09/02/2017
J.Creus Prats - CERN

10. External cryogenics layout
LAr Vaporizer
2nd LAr tank A
cage with roof
hydrogen rack
A’-A
hydrogen mixer
09/02/2017
J.Creus Prats - CERN

11. Finished 3D model and preliminary drawings
Platforms
Finished 3D model and preliminary drawings
3D model reviewed twice with SMB-SE
Preliminary drawings sent to valve box supplier for interface points discussion:
Valve box mass
Purifier valve box manipulation hole
Platform Installation schedule:
Scheduled from week 21 to week 26 / 2017
Several structures installed at the same time
Dependent activities
Cable tray installation
Field box installation
Cabling campaign 3 ( long cables from racks to field boxes)
09/02/2017
J.Creus Prats - CERN

12. Platforms simulation of purity monitor 850mm overhang
extension over concrete blocks
09/02/2017
J.Creus Prats - CERN

13. legs positioned to remove purifier vessel
Platforms
cable tray traps
steel grating surface
warm piping supports
legs positioned to remove purifier vessel
NP F1-ST
09/02/2017
J.Creus Prats - CERN

14. Platforms maintenance access cable tray supports to NP-02-40-CA
to NP AP
main access stairs
NP CA-ST
09/02/2017
J.Creus Prats - CERN

15. Platforms supports for cold lines Integration of field boxes
09/02/2017
J.Creus Prats - CERN

16. Platforms purifier manipulation acess stairs NP-04-40-F1-ST
simulation of purity monitor
Integration of field boxes
NP AP-ST
NP F1-ST
09/02/2017
J.Creus Prats - CERN

17. Detail development of external cryogenics
Summary
Development of control system requirements for cable tray, cabling operations and field boxes.
Detail development of external cryogenics
Hydrogen Mixer implementation under study with HSE and FGSO
Definition of platforms 80%
Platforms interface with valve box supplier
09/02/2017
J.Creus Prats - CERN

18. 09/02/2017
J.Creus Prats - CERN