MICE Hall – South Mezzanine Jason Tarrant - STFC l Contents »Device checks with current South Mezzanine »South Mezzanine change summary »Conclusion.

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Presentation transcript:

MICE Hall – South Mezzanine Jason Tarrant - STFC l Contents »Device checks with current South Mezzanine »South Mezzanine change summary »Conclusion

MICE Hall – South Mezzanine l Device checks with current South Mezzanine »AFC »Spectrometer Solenoids »RFCC »EMR / KL »Hydrogen System Current South Mezzanine

MICE Hall – South Mezzanine l AFC »Hydrogen Safety Vacuum Line port currently will clash with floor Current floor height Current South Mezzanine

MICE Hall – South Mezzanine Clash with rails Clash with support leg AFCs not shown so vacuum pipe run can be seen l AFC »Hydrogen Safety Vacuum Line itself currently clashes with rails & support leg

MICE Hall – South Mezzanine Beams cut back Support leg moved to next beam Raised & shortened floor section (hinged) ‘joggle’ required in handrail around vacuum pipe l AFC »Raise platform, move support leg & cut beams back to resolve

MICE Hall – South Mezzanine l Spectrometer Solenoid »ToF Cage & instrument port close to South Mezzanine ToF assembly arm Instrument port

MICE Hall – South Mezzanine l Spectrometer Solenoid »Rotate / mirror ToF arm & raise platform ToF assembly arm Instrument port (X-section from back) Beams cut back if required Proposed raised floor

MICE Hall – South Mezzanine l RFCC Ports protrude into walkway Services tray clash Major clash between current South mezzanine and RFCC 1m walkway (preferred)

MICE Hall – South Mezzanine l RFCC Ports to be moved to opposite side 2x 300mm services tray to replace 1x 450mm (current water pipes to be moved too) Mezzanine shortened & raised at front Width of walkway (floor level narrow!) Gas panel

MICE Hall – South Mezzanine l RFCC Mezzanine raised up over RFCC Water pipe & panel move

MICE Hall – South Mezzanine l EMR EMR does not clash in final location (apart from support legs) but when it is craned in (it has no rolling platform)

MICE Hall – South Mezzanine l Mezzanine & EMR Potential clash with support pillars at other steps June 2011 Step V Step VI Step IV

MICE Hall – South Mezzanine l Mezzanine & EMR June 2011 Step VStep VIStep IV Support legs moved (red legs = old position) Hinged floor section lifted to install

MICE Hall – South Mezzanine l Mezzanine & Hydrogen system Only issue noted is that the H2 system services & frame to be raised in line with raised floor to give appropriate headroom on gangway

MICE Hall – South Mezzanine l South Mezzanine change summary »Move 4 of 5 support legs to another beam, 1 extra added to minimise platform span »Fit cross beam between support legs to support intermediate beams the cut back intermediates »Fit hinged platform sections spanning between support leg beams –Higher & shorter than current mezzanine (avoids RFCC & AFC pipe line) –Rail with ‘dog leg’ fitted to outer beam

MICE Hall – South Mezzanine l South Mezzanine change summary View along cooling channel (from upstream) with proposed South Mezzanine modifications RFCC Spec Sol Hinge platform (raised) Water pipe re-routed for cable trays Proposed cable trays Platform shims & boosters AFC

MICE Hall – South Mezzanine l South Mezzanine change summary Current South Mezzanine

MICE Hall – South Mezzanine l South Mezzanine change summary Protruding hydrogen system Existing mezzanine Moved supports (red = old positions) Intermediate beams cut back Hinged sections Extra beam

MICE Hall – South Mezzanine l South Mezzanine change summary Cross beam with hinges for platform Existing mezzanine Intermediate beams cut back Platform shims & boosters

MICE Hall – South Mezzanine l South Mezzanine Design – Status »Concept design complete »Detail design nearly finished »Manufacturing drawings to be started

MICE Hall – South Mezzanine »Outstanding questions –Is the narrow walkway acceptable for safety? l OK’d by RAL safety, but suggested leave as late as possible to allow H2 system to be installed in relative comfort, i.e. Widest gangway –Structurally OK? l Spoke with structural engineering consultant = OK’d in principle but awaiting final design / manufacturing drawings

MICE Hall – South Mezzanine »Outstanding questions –Can the H system frame & pipes be raised to give headroom? –Is the raised floor compatible with the hydrogen racks? –Who is responsible for ToF modification & can this be done? –Can / is shutter mechanism on Spectrometer solenoids to be modified?

MICE Hall – South Mezzanine »Possible clashes & resolutions –Spectrometer Solenoid shutter mechanism l Shutter mechanism being redesigned? l Could mechanism be modified? To move post again would make platform span too big Red post is old position = big clash with AFC Potential clashes Step IVStep VStep VI

MICE Hall – South Mezzanine »Possible clashes & resolutions –AFC Valve l Final placement will determine extent of cut to beam & platform shims / boosters Valve on middle AFC Platform shims & boosters

MICE Hall – South Mezzanine l Conclusion »Step IV changes –Waterpipe move –Cable tray changes –Upright support leg posts moved for AFC & 1 extra added –1 cut beam to be replaced –Platform raised near Spectrometer solenoid instrument port unless instrumentation can be mounted to avoid Mezz (awaiting instrumentation info from A Bross) –Hinged platforms to be fitted over current EMR and Step IV EMR positions* »Step V changes –All other platform changes! * Not installing all platforms would create an even floor unless simple temporary booster sections used to match floor level!