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[Sphenix-magnet-l] minimal/idealistic schedule/scenario for the Low-field test
- From: "Yip, Kin" <kinyip AT bnl.gov>
- To: "sphenix-magnet-l AT lists.bnl.gov" <sphenix-magnet-l AT lists.bnl.gov>
- Subject: [Sphenix-magnet-l] minimal/idealistic schedule/scenario for the Low-field test
- Date: Wed, 23 Sep 2015 20:32:37 +0000
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Hi,
After today’s meeting, Roberto and I have discussed about the minimal and idealistic schedule for the low-field test and drafted a timeline.
Below is the schedule that I’ve just received from Roberto. He’s changed the definition of t0 a bit (compared to what I called t0 in our discussion) but the following is basically along the line that we’ve discussed (with a lot of details added). ( I’ve taken liberty to change/correct the blue “Phase 3” at the top to “Phase C”. )
Roberto just draws an ideal plan/scenario for 28 days (4 weeks) if everything works …
Kin
From: Than, Yatming (Roberto)
SET YOUR FORMAT TEXT IN EMAIL TO HTML FORMAT COLORED CODED
PHASE A BLACK: PRE ERL CRYO SHUTDOWN SEPT 23 thru Oct 30 PLUS float till Cryo spools arrive PHASE B RED: DURING ERL CRYO SHUTDOWN 10 DAYS PHASE C BLUE: 4.5K COLD TEST 18 DAYS
CRYO MECHANICAL
PHASE A, PRE ERL SHUTDOWN SEPT 23 thru Oct 30 PLUS float till Cryo spools arrive. LINE 1: Warm helium supply from ERL HP clean gas to new LN2 Helium Gas cooler CLPB240-GC. 1a. Tap 1 inch SS tube from HP helium tap [already in, Pete installed it for me] 1b. 1 inch SS tube run from tap to flowmeter run 1b. FLOWMETER FT3333H STRAIGHT SECTION: approximately 4 ft before and after, total 8 ft length of 1.5 inch NPS sch 10 pipe with adaptors to 1 inch tubing. 1c. Inline Filter. Need to order 1d. Ball valves, H3601M and H3624M. Need to order 1e. Pressure Regulator. Our 2nd high flow regulator 1f. 1 inch SS tube to LN2 Helium Gas Cooler CLPB240-GC helium inlet LINE 2. 1 inch SS tube run from regulator to sPHENIX valvebox H3611A [CV01]. Needs compression fittings and adaptors LINE 3. Shield return 1 inch SS tube run back the 4 inch compressor suction line[ location the manifold above the subcooler] This line will return cold gas, so need extra length to warmup the gas. During cooldown the manual bypass is open. Once shield is cold and operational the MKS mass flowcontroller will control. So this MKS flowcontroller/bypass assembly will be at the far end of the line to see room temperature gas. 3a. Valvebox to HX 3617A [CV07] to manual ball valve bypass H3606M: 1inch tubing 3b. Bypass ball valve / MKS flowcontroller 3c. Return to tree manifold of the ERL 4 inch return line” 1 inch tube. Ball valve install.
LINE 4. GN2 VENT from CLPB240-GC to outside of building. We can tee this into the line used for the LR1430 coldbox GN2 vent. Use 1inch tubing
LN2 VJ LINES INSTALL Weld up LN2 bayonet vacuum jacket cap with fitting to interface to LN VJ line Install LN2 Bayonet Install 40 ft LN2-VJ flex line from LN2 Bayonet tap to from CLPB240-GC LN2 dewar helium cooler Install 20 ft LN2-VJ flex line from CLPB240-GC LN2 dewar helium cooler outlet to New supply Spool VJ tap.
FIELD JOINT PREP 1 DAY SCAFFOLD EVALUTION AND PREP for FIELD JOINT AT ERL VJR TAPS 1 DAY Setup scaffold
WARM PIPING INSTALL From source to concrete blocks platform top.
VALVEBOX WORK WHEN VALVEBOX IS INSTALLED ON TOP OF PLATFORM Finish piping connection for warm piping Install relief header assembly WITH QUENCH DUMP VALVE Pressure test warm piping.
VACUUM PUMP INSTALLATION: Mount turbos to valvebox flange with tee. Connect Rotary vane pumps to turbos.
==================== TIME LINE t = 0 ============================== PHASE B, POST ERL CRYO SHUTDOWN 10 DAYS ERL finished READY TO SHUTDOWN CRYO SYSTEM TO WORK ON FIELD JOINTS 3 DAYS WARM UP ERL CRYO SYSTEM, and new cryo spools delivered 1 DAY Prep and Cut vacuum jackets for field joints 2 DAYS. Set and weld field joints and pressure and leak check. 1 DAY. Weld vacuum jacket and prep for leak check. Pumpdown overnight 1 DAY: Mass spec leak check. Helium line and vacuum jacket welds. Install Coax VJ into new bayonets taps spools and roll up onto concrete platform 1 DAY: ASSRC/ LESHC-PCSS WALKTHRU 1 DAY: ACTION ITEMS ASSRC/ LESHC-PCSS WALKTHRU
========================================================== PHASE C: COOLDOWN AND 4.5K TEST. 18 DAYS 10 DAYS: Cooldown 300K to 80K 4 DAYS: 80K to 4.5K 2 DAYS: 4.5K LOW POWER TEST 2 DAYS RELIQUEFY INVENTORY for ERL ================ ERL HAND OVER BACK ======================
PARALLEL CONTROLS
CRYO ELECTRICAL/CONTROLS/INSTRUMENTATION HARDWARE PHASE A, PRE ERL SHUTDOWN SEPT 23 thru Oct 30.
Software PLC PROGRAMMING INDUSOFT OPERATING SCREEN BUILTS I/O CHECK OUT AND VALVE ACTUATION
HARDWARE VACUUM RACK wiring CRYO CONTROL RACK BUILD CABLE TRAY / CONDUIT INSTALL Install CRYO cables and Ethernet cables
Valvebox wiring/connection Wire cryo control valves Install Current Lead cooling Bronkhorst mass flowmeters Install vacuum gages SET CRYO CONTROLS AND VACUUM RACKS IN 912 Wire Pressure transducers Wire temperature sensors Wire SC Level probe Wire Heaters Connect turbos and roughing pumps and rough vacuum bypass valves. Power up control system and instruments 2 DAYS: Control system check out with valve stroking 2 DAYS: Fix any wiring issues Operate valves for pressure test of Warm piping installations
PHASE B, POST ERL CRYO SHUTDOWN ============================= TIME LINE = 0 CRYO CONTROLS READY NOV 2 ==================== Operate valves for pressure test of Coax VJ lines installation Install Pressure transducers on new spools and wire up and I/O checkout
PHASE C: COOLDOWN AND 4.5K TEST, trouble shoot any cryocontrols issues during operation 10 DAYS: Cooldown 300K to 80K 4 DAYS: 80K to 4.5K 2 DAYS: 4.5K LOW POWER TEST 2 DAYS RELIQUEFY INVENTORY for ERL ================ ERL HAND OVER BACK ======================
Roberto Than Cryogenic Systems, Collider-Accelerator Department
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- [Sphenix-magnet-l] minimal/idealistic schedule/scenario for the Low-field test, Yip, Kin, 09/23/2015
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