ProtoDUNE Single Phase Beam Plug Nitrogen Gas System Installation Tim - - PowerPoint PPT Presentation

ProtoDUNE Single Phase Beam Plug Nitrogen Gas System Installation

Tim Loew Lawrence Berkeley Lab January 12, 2017

Introduction

• Gas System Overview and Installation Timeline
• Phase I

– Install and secure external gas system components to roof and secure through feedthrough.

• Phase II

– Mount Beam Plug into End Wall Field Cage and Install in Cryostat.

• Phase III

– Uncoil and connect external gas line to Beam Plug mounted inside the Cryostat.

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Beam Plug Nitrogen System (External)

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Nitrogen Line Feedthrough Pipe into Detector Interior Locally Accessible Control Panel TCO Located adjacent to walkway BL BR Beam Window

Beam Plug Nitrogen System (Internal)

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Mounted Beam Plug Nitrogen Line Connection End Wall Field Cage End Wall Field Cage Local Control Panel

N2 gas from/to Control Panel

beam

Phase I-III Installation Sequences

Phase III (Prior To Step 12B) Phase II (Prior To Step 5A)

5 Graphics Source: Gina Rameika. Note: Phase timing shown approximate.

beam Phase II Phase III Phase I Phase I Phase II Phase III Beam Plug Beam Plug

1/2017 8/2017 9/2017 12/2017 Phase I 11/2017 Phase II Phase III

A B

Phase I (Exterior): August/September 2017

• Install external NitrogenGas

System components and Local Control Panel on roof.

• Secure Nitrogen Line through the

Feedthrough Pipe flange.

• EHN1 Services Needed:
• AC Power
• House Nitrogen Line with a single

custom fit section. No purity

• requirements. Low moisture

content preferred.

• Slow Control Sensors(mV readout):
• Temperature RTD (2X)
• Pressure (2X)

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Valve Cluster Local Control Panel Valve Cluster Local Control Panel

EHN1 N2 in N2 to BP N2 Vent

Dielectric Break

Phase I (Interior): August/September 2017

• Nitrogen Line temporarily

coiled and supported by a Runway Beam until Beam C is in its final configuration.

• Nitrogen Line leak tested.
• Clean Electrical Grounding

with Dielectric Break verified.

• System installation and

testing duration: 1‐2 weeks

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Runway Beam Until Phase III, the N2 Line is coiled, secured and stowed N2 Line feedthrough from/to Control Panel above N2 gas from/to Control Panel

Phase II: November/December 2017

• Beam Plug installed into End Wall

Field Cage in Clean Room outside

• f cryostat.
• Beam Plug and End Wall Field Cage

inserted into Detector together during Step 5A (slide 5).

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Staging Clean Room Detector End Wall Field Cage with Beam Plug Mockup at Ash River Trial Assembly Beam Plug Mockup End Wall Field Cage

Phase III: December 2017

• Beam Plug and End Wall Field

Cage in position inside the detector.

• Scissor Lift is used to access

Beam Plug location before north drift End Wall Field Cages are in their final configuration.

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Scissor Lift at Ash River Trial Assembly

Image: Gina Rameika

Lift Platform location Beam Plug Coiled N2 Line from Phase 1

Scissor Lift Work Platform

EHN1 SP Cryostat Floor to Ceiling

Phase III: December 2017

• Nitrogen Line is uncoiled and

connected to the Beam Plug via metal seal Conflat flange.

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Secure N2 Line Connection Point (CAD)

Phase III‐type of view from Ash River. (Will be within arms reach at EHN1.)

Secure N2 Line Connection Point (mockup) N2 gas from/to Control Panel N2 gas from/to Control Panel N2 gas to/from Beam Plug

Conclusion

• Gas System Overview and Installation Timeline
• Phase I

– Install and secure external gas system components to roof and secure through feedthrough.

• Phase II

– Mount Beam Plug into End Wall Field Cage and Install in Cryostat.

• Phase III

– Uncoil and connect external gas line to Beam Plug mounted inside the Cryostat.

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