technology department lss2 modifications impact on the vacuum systems ltex - 18/01/2011 eric page...
TRANSCRIPT
Technology Department
LSS2 modifications
Impact on the vacuum systems
LTEX - 18/01/2011
Eric PAGE – TE-VSC
Technology Department
Introduction
Feasibility - Integration
Production planning
Installation planning
Conclusion
Technology Department
Current situation 4L2, part of VACSEC A4L2.C
Insertion of a TCTVA
Arc 1-2
IP2: ALICE
Introduction
Collimator area ID800 area
Technology Department
Current layout 4L2, part of VACSEC A4L2.C
Insertion of a TCTVA
Constraint:1. D acceptable is 1360 mm maximum2. Collimators should move along their 5th axis
Arc 1-2
IP2: ALICE
Introduction
Technology Department
Current layout 4R2, part of VACSEC A4R2.C
Arc 2-3
IP2: ALICE
Introduction
Technology Department
Collimator area on 4L2 side, identical on 4R2 side (outer)
new issue to solve: supports collision
Feasibility - Integration
New TCTVA
New module
New module
New chamber
Arc 1-2 IP2: ALICE
Technology Department
ID800 area on 4L2 side, identical on 4R2 side
Feasibility - Integration
Arc 1-2 IP2: ALICE
Technology Department
Vacuum elements necessary for inserting the new TCTVA: 4 modules and 2 chambers. Most of the components is available from the stock which needs to be completed.
Time necessary to produce these elements (from the drawings to the reception): 3 months.
Collimator area
Production Planning
TypeCorpsSouffl etSouffl etBrideBrideBrideBrideBrideInserts RFInserts RFInserts RFInserts RFInserts RFInserts RFInserts RFInserts RFInserts RFVisserie
VSR__0127VSR__0135
VSR__0011
VSR__0120
VSR__0041 OUIOUI1504
4
8
42
22
Matériel nécessaire et disponibleDisponible
10OUIOUIOUIOUIOUIOUI
4VBU__0013VBU__0060
44
VCD__0269
VMTIA0006 4 3VMTIA0002
Désignation
VBU__000284
VBU__0008 4VBU__0018
2VSR__0239
Quantité totaleA fabriquer
Quantité1010
OUIM3*6
A ouvrir
8
OUIOUI
1002VSR__0005
2VSR__0057
VSR__0137 2
OUI
Technology Department
Fabrication of 2 new VCDG_ vacuum chamber andconsolidation of spare elements:
Time necessary to produce these elements(from the drawings to the reception):
4.5 months (the design office and the workshop should be informed 3 months in advance).
Processes:LHC database modificationDesign OfficeMechanical machining3 thermal treatmentsDegreasing before firingFinal cleaningLeak detectionMetrologyInternal transportsValidation test
Material: 4 flanges Ø 90910 m tubes ID8006 Helicoflex® gaskets4 DN150 CF4 supports for 2 tubes
Production Planning
ID800 area
Technology Department
Steps necessary for the installation for one sector: Venting of the vacuum sector, Displacement of the moving elements (TCTH, modules, VCTY_, VCTCR, VCDGA + supports), Installation of the old support to the new location + installation of new supports (new modules), Installation of the new modules + new VCDG_ chamber, Survey of the moved and installed elements, Closing of the sector, Pumping and leak detection of the sector, Bakeout installation, Bakeout and NEG activation, Bakeout desinstallation and cleaning of the area
Time and TE-VSC team necessary to ensure the work (on one side): 1.5 months with 3 people (helped punctually by a transport team). Another team will pull the cables for controlling the new vacuum pumps + pumps and instrumentation moving (done in parallel).
Installation Planning
Collimator and ID800 area on one side
Technology Department
Conclusion
• The new vacuum layout ensures the ZDC movement (1360 mm down to the IP).
• The new vacuum layout and special fabricated components allow the 2 collimators 5th axis motion.
Integration
• Collimators area: 3 months.• ID800 area: 4.5
months.Production Planning
• 1.5 months for vacuum sector A4L2.C.• 1.5 months for vacuum sector A4R2.C.Installatio
n Planning
Technology Department
SPARE SLIDES
Technology Department
4L2, database configuration, B1 (external beam line):
Current database
Modified database
New vacuum elements
Feasibility
Technology Department
4L2, database configuration, B2 (internal beam line):
Current database
Modified database
New vacuum element
Feasibility
Technology Department
Current situation of 4L2 and 4R2 concerning the TCTH collimator bakeout
NO JACKET
REMARK #1
Technology Department
4L2 and 4R2 are symmetric for the integration but…The mechanical aperture is different between 4L2 and 4R2 around Y chambers:
REMARK #2.1
VMGAB
VCTNP
Apertures are 80 to 80mm
Apertures are 65 to 80 mm
VTCYD chamber
VTCYB chamber
B1 B2
4L2 4R2
IP2
Technology Department
4L2 and 4R2 are symmetric for the integration but…The mechanical aperture is different between 4L2 and 4R2 around BPMs:
REMARK #2.2
Apertures are 80 to 80 mm
Apertures are 80 to 63 mm
4L2 4R2
VAMTKB1VAMTJ
BPMWI TCTH BPMWB
IP2
TCTH
B2
Technology Department
How does a vacuum module (VM) looks like internally:
Technology Department
Creation of new vacuum elements for 4L2:
• VMTBA: Collimator Module - DN100/QCF100 - 80/80 aperture is 80 mm, L=220 mm, the bellow connected on the collimator side accepts the 5th axis motion.• VMTQC: Collimator Pumping Module - DN100/QCF100 - 80/80 aperture is 80 mm, L=460 mm, the bellow connected on the collimator side accepts the 5th axis motion.• VCRLP: Vacuum - Chamber - Circular - Long Straight Section - ID67 - OD70- Type LP - QCF100/QCF100 aperture is 67 mm, L=3800 mm.
Integration issues:
• The connections of QCF100 (DN100 conical flanges) require space for a MKT collar: Ø is 230 and thickness is 35 mm.• The thickness of the bakeout (PI thin layer) envelop for the VCRL% chamber is 5 mm which means a total outer diameter of 70+10=80 mm.
Technology Department
Creation of new vacuum elements for 4R2:
• VMTBB: Collimator Module - QFC100/DN100 - 80/63R aperture is 80 to 63 mm, L=220 mm, the bellow connected on the collimator side accepts the 5th axis motion.• VMTQD: Collimator Pumping Module - QFC100/DN100 - 80/63 aperture is 80 to 63 mm, L=460 mm, the bellow connected on the collimator side accepts the 5th axis motion.• VCRLP: Vacuum - Chamber - Circular - Long Straight Section - ID67?? - OD70?? - Type LP -
QCF100/QCF100 aperture is 67 mm??, L=3800 mm, same chamber as 4L2.
Technology Department
ID800 area on 4L2 side