1. Update on Junction Box Design
Edyta Pilorz
(Cracow University of Technology)
07/09/2016

2. Available space in the alcove - reminder
width: 1560 mm
height: 1000 mm
depth: 181 mm

3. 2 layers- concept
As the available amount of space is limited, the 2-layer concept was created:
1st layer – containing the objects before entering detector/heater
2nd layer – containing the objects after the detector/heater

4. 1st layer - overview

5. 1st layer - overview PV3010 (connection valve) PV3010 PV3A14 PV3010
TT3012
FT3010
CV3B20
PT3010
PV3B14
PV3A14
PT3012 & BD3012
PV3C14
PT3012 & BD3012
PV3B14
PT3010
CV3B20

6. 2nd layer - overview

7. 2nd layer - overview EH3B30 TT3B30 EH3B30 EH3B31 PV3036 PT3B30 PV3036
& BD3036
PV3036
TT3B36
TT3B36

8. Junction Box – insulation shape
Valves sticking out
Foam
Valves sticking out
Area cut for pressure transmitters and burst discs

9. Remarks Depth limit: 181 mm not enough;
Currently the objects take 252 mm space in depth; with supports they will take more than 300 mm - is the solution for a dismountable junction box acceptable? The manoeuvre could take few hours if all well studied in terms of supports.
Two heaters are too close to each other; the best solution would be to direct them towards front – does it matter how much Junction Box will stick out in depth???
Open points for 3D model completion:
Rotarex Valve to be changed for the model with ¾ inch VCR connections – the supplier does not provide a model; 3D model to be design on my own
After chat in the workshop – bending radius for 18 mm pipes is too big; they advice to put elbows instead
Swagelok Valves with DMD extensions to be checked if fit with VCRs connections
Two manual valves to be put after bigger problems solved – they are rather small and can be put anywhere; should not cause any problems
CDD code jus created for drawings of our team concerning CO2 cooling: LHCXCDVU will contain all CO2 LHCb plant drawings – anything against?

10. Thank you for the attention!