C2-B-03 Spallation Neutron Source Cryogenic System Installation. September 24, 2003

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1 Cryogenic Engineering Conference C2-B-03 Spallation Neutron Source Cryogenic System Installation D.R. Hatfield, D.E. Richied, M.P. Howell, Oak Ridge National Laboratory D.M. Arenius, V. Ganni, Thomas Jefferson National Accelerator Facility September 24, 2003

2 CHL Helium Purifier System Helium Storage Tank System Helium Process Piping Helium Compressor System 4.5K Cold Box 2.1K Cold Box Utility System 2

3 CHL Equipment Layout 3

4 HeliumGas Stora ge Pipin g Heli umgas pipingto 8 tan ks (Trinity supplied) with 8 valve rac ks (Jlab supplie d) Cross-over pipin g rack (Jlab supplie d) High pressure heliumunloadin gsta tion (Jlab supplied) Pi pin g t o purif ie r c old box (J lab supplie d), 2 rec ov e ry c ompre ssor s (Jlab supplie d), an dthe interface to the cross- over pipin g rac k C ompr e ssor R oom Pi pin g Heli umgas pipingto/fromth e ma in c o mpre ssor s ( PH PK supplie d) to the trench pipingan dto the South wall piping Oil pipingto the c ompre ssors an d oi l mana ge men t pi pin g to the trench pi pin g an dto the South wall pipin g Wa te r pi pin g to/fromthe c ompre ssor s t o th e tre nch pi pin g an d ex ten sion s to CTF (future) an dto the c old box room Heli umgas pipingto/fromth e gas managemen t va lve rac k (J lab supplie d) to the trench piping Heli umpi pin g ex ten sion s with isolation valves to CTF in the trench pi pin g 4

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12 Syste mbre a kdo wn continued South Wall Pipin g Heli umgas pipingto/fromth e c ompre ssor r oo m pi pi n gan dto/fromthe cold b ox rooman dto the oil re moval eq uipment (Jlab supplie d) Oil pipingfrom the oil re moval eq uipme n t t o the c ompre ssor r oom pi pin g Heli umgas pipingto/fromth e a mb ient va porizer (Jlab supplie d) in te rfacin gbetween the c old b ox and c ompre ssors an dto the va poriz e r va lve rac k 3 atmheliumsuppl y di strib ution C old Box RoomPiping 4.5K Main C old Box Rigging and installation of the 4.5K cold box (supplied by Linde BOC) Reassembly of the cold box and removal of shipping braces (Linde) Helium gas piping to/from the cold box to the compressors via south wall piping system Helium gas piping to the recovery compressors for cool down and cleanup of the system and the beds in the cold box and the 3 atm helium supply 12

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18 Syste mbre a kdo wn continued Instrument air and water piping to the cold box Sub-Atmospheric Cold Box (2.1K Cold Box) Rigging and installation of the 2.1K cold box (Jlab supplied) Rigging and installation of frequency converters and magnetic bearing cabinets (Jlab supplied) and power cables Loading cold compressors and adjusting (SNS/Jlab/Air Liquide) Leak check of the cold box vacuum shell Helium gas piping to recovery compressors for cleanup/cool down of the system and 3 atm supply Vacuum piping connections Instrument air and water piping Suppl y an dreturn Expan sion Cans Rigging and installation of the Supply expansion can Rigging and installation of the Return expansion can Guard vacuum piping connections to the vacuum pump skid (Jlab supplied) Relief and cool down piping connections to the return expansion can 18

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21 System Breakdown continued Guard Vacuum System Rigging and installation of the vacuum pump skid (Jlab supplied) Piping to the vacuum skid from the tunnel piping Instrument air and water piping Utility Equipment LHe dewar, U-tubes (Jlab supplied) LN2 dewar (Chart supplied) and the LN2 distribution piping (Jlab supplied) Instrument air system (Jlab supplied) Water piping to/from and in the cold box room to the compressor room Recovery compressors (Jlab supplied) Purifier cold box (Jlab supplied) U-Tubes (Jlab supplied) Test Heaters (Jlab supplied) for system verification 21

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28 Pi pin g an dequi pment Pac kages Heliumgas storage pipin g C ompre ssor roo m pi pin g South wall piping C old box r oom pi pin g Utility pipin g In stallation General Specification No A-0010 Rev-02 (General pipin g specification for SNSCHL heli umga s, oil remov a l, gua rd vacuum, in str u men t a ir an dcooling water pipingsyst e ms) is used to control all the wa rmpi pin g Detailed specifications are use d to con trol each of th e in sta lla ti on pac kages listed above F or Syste ma cce pta nce, the f oll owin gin stallation Checks an d Ce rtif ica ti on s are to be performed on each installation packa ge Cleanline ss certification Number of times the system has been evacuated and backfilled with nitrogen 28

29 System Acceptance - continued Final moisture content in the cold trap (should be none) The ultimate vacuum at the pump in the connected system The vacuum pump blank off (ultimate) pressure Pressure test certification Is the pressure test complete as per the specification? Leak test certification Is the leak test complete as per the specification? Safety check certification Are all the relief devices verified for their set pressure? Are all the relief devices installed? Are all the temporary plugs removed? QA department check certification Are all the QA requirements met for this sub system? Safety Committee check certification Are all the safety requirements met for this sub system, which includes mechanical and electrical? 29

30 Helium Gas Storage Piping Connect the 8 helium storage gas tanks and the other associated valve racks and piping as follows Prepare the gas tanks per specification A-0020 Rev-00 (SNS Direction for Helium Gas Storage Area) Install the piping per specification A-0011 Rev-00 (SNS CHL Helium Gas Storage System Piping Specification) Clean the system as stated in the above specifications Complete the pressure check and leak check as stated in the above specifications Provide the installation check and the six certifications to the commissioning group 30

31 Compressor Room Piping Connect the 6 helium compressors, gas management and the other associated piping as follows Install the piping per specification A-0012 Rev-00 (SNS CHL Helium Compressor Room Piping System Specification) Clean the system as stated in the above specifications Complete the pressure check and leak check as stated in the above specifications Provide the installation check and the six certifications to the commissioning group 31

32 South Wall Piping Connect the helium compressor piping to the oil removal and then to the 4.5K cold box piping and the other associated piping as follows Install the piping per specification A-0013 Rev-01 (SNS CHL South Wall Piping System Specification) Clean the system as stated in the above specifications Complete the pressure check and leak check as stated in the above specifications Provide the installation check and the six certifications to the commissioning group 32

33 Cold Box Room Piping Connect the 4.5K cold box, 2.1K cold box, guard vacuum system and the other associated piping as follows Install the piping per specification A-00xx Rev-0x (SNS CHL xxxxxx Piping System Specification) Clean the system as stated in the above specifications Complete the pressure check and leak check as stated in the above specifications Provide the installation check and the six certifications to the commissioning group 33

34 Utility Piping Instrument air system Install the piping per specification A-00xx Rev-0x (SNS CHL xxxxxx Piping System Specification) Clean the system as stated in the above specifications Complete the pressure check and leak check as stated in the above specifications Provide the installation check and the six certifications to the commissioning group Guard Vacuum system Install the piping per specification A-00xx Rev-0x (SNS CHL xxxxxx Piping System Specification) Clean the system as stated in the above specifications Complete the pressure check and leak check as stated in the above specifications Provide the installation check and the six certifications to the commissioning group 34

35 Utility Pipin g - c ontinued LN2/ GN2 syste m In sta ll the pipingper specification A-00xx Rev-0x ( SN SCHL xxxxxx Pi pin g Syste m Specification) Clean the syste mas stated in the above specifications Compl e te th e pre ssur e check a n dlea k chec k a s sta te d in the ab ove specifications Pr ovide th e in sta lla ti on check a n dthe six ce rtif ica ti on s to the commissioning group Purifier Purif ie r c old box Install the piping per specification A-00xx Rev-0x (SNS CHL xxxxxx Piping System Specification) Clean the system as stated in the above specifications Complete the pressure check and leak check as stated in the above specifications Provide the installation check and the six certifications to the commissioning group 35

36 Utility Piping - continued Recovery compressor Install the piping per specification A-00xx Rev-0x (SNS CHL xxxxxx Piping System Specification) Clean the system as stated in the above specifications Complete the pressure check and leak check as stated in the above specifications Provide the installation check and the six certifications to the commissioning group LHe Dewar Install the piping per specification A-00xx Rev-0x (SNS CHL xxxxxx Piping System Specification) Clean the system as stated in the above specifications Complete the pressure check and leak check as stated in the above specifications Provide the installation check and the six certifications to the commissioning group 36