LHC cold boxesInstallation and status

Technical Support 2005 workshop

Caterina Bertone TS-IC

Cold boxes to be transported5 QUI Cryogenic distribution feed boxes8 QURC Cryogenic refrigerators

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n.

Object

Installation date

Number of separate components

Weight of the heaviest part

Dimension of the biggest part

Level of difficulty for installation (1/3)

1

P8 QUI

March 2003

5

12 t

10 m x 2 m

1

2

P2 QUI

August 2003

5

12 t

10 m x 2 m

2

3

P8 QURC

October 2003

7

22 t

7 m x 7 m

3

4

P8 QURC

February 2004

7

22 t

7m x 7 m

2

5

P4 QUI

March 2004

5

12 t

10 m x 2 m

1

6

P4 QURC

March 2004

7

22 t

7 m x 7 m

2

7

P4 QURC

April 2004

7

22 t

7 m x 7 m

2

8

P6 QUI

June 2004

5

12 t

10 m x 2 m

1

9

P2 QURC

February 2005

10

9 t

7 mx2 m

3

9

P18 QUI

February 2005

5

12 t

10 m x 2 m

2

11

P6 QURC

March 2005

8

9 t

7 mx2 m

2

12

P6 QURC

April 2005

8

9 t

7 mx2 m

2

13

P18 QURC

June 2005

8

9 t

7 mx2 m

3

QUI what is that?

Caterina Bertone TS-IC

QURC what is that?

Caterina Bertone TS-IC

Try to concentrate on the most difficultA level of difficulty has been determined (1/3) to focus on most difficult casesLevel 3: QURC US85, US25, PM18The actual status: 12/13 cold boxes are installed, PM18 QURC in June 2005

Caterina Bertone TS-IC

QURC UX85 a challenge to prepare anotherInstallation in US85 passing by UX85 throughout tampon wall: Demolition of the wallDeviation of general services and gas systemInstallation of 20m long Z rail on the vault (to avoid interference with crane)Preparation of US85 floor to roll electrical switchboards and installation of manifoldUse of hydraulic extra short jacksVery spectacular flight and installation

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Some pictures to explain

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QURC US25 what is that?

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QURC US25 no space, no means -> 3D simulationDefinition of maximum overall dimensions of AL componentsInstallation of 15t hoist and rail on the US25 vaultDefinition of transport means

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ManifoldsLength of manifolds > length of underground shaft > in 4 partsTemporary garage behind final position to allow welding : installation on shelf and remove stairs

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QURC horizontal partQURC higher than metallic structure (dismounted)Maneuver with no room - > special roller seat + reduced high spreaderQURC width 1900mm, shaft dimension 1950mm -> nylon pads to allow loweringPosition of centre of gravity not correct to lift in US25 and rotate to final position -> addiction of counterweight in feet to compensate

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QURC horizontal show1-2cm room in all phases of operation

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QURC Vertical partQURC longer than shaft -> need to be tilted with hoist chain system, special spreaderQURC width 1900mm, shaft width 1950mmIn underground extra-short rollers (110mm) to pass under the metallic structureRotating ring to be welded in the lower part to permit passage from horizontal to vertical in the US25: behind a rotating/rolling cradle, in front hydraulic shortenable spreader on the hook seat to liftCounterweight on the back to correct center of gravity positionInsertion of K supports under QURC feet when suspended

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Vertical part show

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QURC vertical show (2)

Caterina Bertone TS-IC

Conclusion 12/13 cold boxes are in places. Installation has been successfulDetailed handling studies (3D, tools definition and construction) have been requiredCoordination with different technical sectors (CE for rail and walls, EL for cabling modifications, CV for pipes de-routing, .) was goodSafety aspects have been studied in detail with all safety procedures respectedOverall cost of installation has been ~350kCHF, i.e. 1% of the 12 cold boxes valueLast challenge QURC in PM18 soon!!!

Caterina Bertone TS-IC