ALICE TPC Ne/CO2 Gas System. Mixing Rack CO 2 -Removal & (O 2,H 2 O)- Cleaning Rack.
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Transcript of ALICE TPC Ne/CO2 Gas System. Mixing Rack CO 2 -Removal & (O 2,H 2 O)- Cleaning Rack.
ALICE TPC Ne/CO2 Gas System
Mixing Rack
Gas Mixture AnalysisOxygen
HOetc.
2
Calibration GasesReference Gases
Primary Gases
0 - 10 bara
0 - 10 baracirculation
loop
purgeexhaust
Run
Fill
Run
Fill
Bypass
Run atconstant flow
Fillor pressure regulated
fromChmabers
toChmabers
2
4
mixer
DP
P
DP
P
DP
P
n-wayvalve
05-12-2001 /FH/GWG
MixerComponent Layout
12
3
4
5
6
9
7
8
12
13
14
10
11
1
1 1
1
CO2-Removal & (O2,H2O)-Cleaning
Rack
Pumping and Storing Rack
Gas system Racks :
• Getting ready
• Individually PLC-controlled
--> connect functionality
CO2 - Purging Mode
Ne/CO2 - Running Mode
User interface panels for ALICE TPC gas control system
• PVSS• Prepared by IT/CO team under R.Barillere• First panel prototypes are available
PVSS Pumping module
PVSS Mixer
module
Purifier module
Purifier column sub-panel
TPC Gas Controls Milestones
• First versions of all necessary PLC modules available by the end of 2002. With this we can operate individual racks, test and hardware
--> debug them…• Full PVSS version by Q1 2003 (dependant
on UNICOS library updates)• Full test of gas system + controls on test
volume by Q2 2003
Connection: Gas System --> DCS Parameter list:
• (T, P) --> in, out, compressor, - cleaning, supply
bottles,
• (O2, H2O) --> in, out,
• Ne/CO2 --> mixer
• V_drift --> Goofie
Goofie Drift Velocity Monitor
2 monitorsIn caveT_stabilizedP = TPCVdrift = in & out
G
G
Goofie Control Card:
• Preamplifiers • shapers • Digitizer : Altro - veccio • Profibus Controller
• Applicom• --> Labview • --> Analysis
Goofie Control Status :
• Detector --> PT ready
• Card layout --> ready
• Mounting --> pending
• Plc-programming --> pending
• Labview Analysis --> On to do list
• DCS connection --> Go to to do list
Summary : TPC Gas System
• Hardware ready --> end 2002
• Local Control --> end 2002
• PVSS controlled --> mid 2003
• PVSS - DCS --> end 2003
• Goofie --> ???