cms pixels upgrade co2 cooling transfer lines · • construction & commissioning of plant and...

CMS Pixels upgrade CO2 cooling transfer lines

Draft spec – for introduction

Paola Tropea & Hans Postema

5 December 2012

• CO2 cooling plants being designed & built for CMS Pixels upgrade

• First plant & manifold prototype to be installed in TIF (bldg 186) in Jan 2013

• Final systems at P5 to be installed end of LS1: 2 plants (USC) & 2 manifolds (UXC)

• Transfer lines (plant to manifolds) must be ready before magnet on (May 2014)

Who does what

• Construction & commissioning of plant and manifolds PH-DT + CMX

• Construction of transfer lines: subject of the meeting

Boundary conditions

Operating pressure = 100 bar

Design pressure = 110 bar (test pressure =157 bar)

Operating T = -35/+30 (insulation!)

Evaporative system: profits of concentric lines! liquid (inlet line) pipe inside vapor (return line) pipe

Overview of the project

Liquid

Vapor

Insulation

5 December 2012 Paola Tropea & Hans Postema 2

Integration of the cooling plants in USC

Electronics Rack balcony

1 2

3 4 CV Room (one level lower)

5

CO2

4 1

2 3

5

Electronics Rack balcony 4


CO2 cooling system in USC: foot print 4

13

5

3000

1680

10

00

Cooling Plant

Accumulator 600x900

1680

Cooling Plant

access from both sides

10

00

Accumulator 600x900

Electronics Racks (x2)

Two concentric transfer lines (insulated, vacuum?), one per cooling plant from USC to UXC


3

1 2

USC55 UXC55

Transfer lines from USC to UXC Preliminary sketch – integration studies on-going

-Z E

nd

+

Z E

nd

TX

54 Manifolds

Manifolds

CO2 plants


Plumbing

Manifolds in UXC

Freon Chiller (CV room)

Tunnel to UXC

Pneumatic Air &


CO2 Plumbing: Plant to Manifolds

Plug! (Insulation)

Rail system 2 insulated, concentric tubes through the ~20m tunnel

Jerome


Experiment Cavern

Transfer lines exit area in UXC from USC


Transfer lines in UXC: from the UXC entrance to the manifolds Option 1) over CMS: abandoned Option 2) along the wall: ok


In the USC (1)


In the USC (2)


In the USC (3)


In the UXC (1)


In the UXC (2)


In the UXC (3)


To Pixel Detector: Branch to existing copper tubes


Possible products?

Sept 2010

Vacuum Insulated Lines for CO2 (VICO2-Lines)

General

VICO2-Lines are specially designed to transfer liquid or gaseous CO2 with low pressure

drops and a very low heat in leak.

Characteristics

VICO2-Lines have a very low heat in-leak because of the high static

vacuum level. By their design pressure of 40 bar(g) and design temperature

of -78C , these lines are very well suited for many application in several industries.

Description

DeMaCo’s VICO2-Lines basically consists of an inner stainless steel

pipe, which transfers the (liquef ed) CO2, and an outer stainless steel

pipe which forms the vacuum jacket.

The VIP is manufactured in pre-fabricated spools. Normally DeMaCo

supplies spools with a process line of pipe Ø28x1 with a length up

to 5m. Other diameters and / or longer lengths can be supplied at

all times.

The spools are evacuated in our workshop. To ensure a longer pe-

riod of high quality vacuum each spool is helium leak tested and a

vacuum retention test of 24 hours is executed on all spools.

DeMaCo Holland bv

Oester 2

Postbus 4

NL 1723 ZG Noord-Scharwoude

www.DeMaCo.nl

[email protected]

Tel.: +31(0)226 33 21 00

Fax: +31(0)226 33 21 11

ISO 9001 - ISO 3834-2 - PED H/H1 - VCA**

For the connection of the lines, two types of couplings are available. The process lines can be connected by welding or by an union coupling. Both

couplings are conventional insulated and covered with a removable stainless steel sleeve.

Alternative Design conditions, materials, Dimensions, QA or other special requirements can be designed by DeMaCo and shall be quoted on request.

Advantages of DeMaCo VICO2-lines

● Low Price / Short delivery time because of the simple design

● Smaller outer diameter compared to conventional insulated pipe lines

● Up to 30 times lower heat in-leak than conventional insulated pipe lines

● Easy to install

● No external insulation required

● After delivery up to f ve years maintenance free

● Easy extension, re-routing, dismantling and re-using of the line without

af ecting the vacuum of the spools

Additional features

● Appendages (valves, safety valves, gas vents, etc.)

● Cryogenic engineering and design

● On-site measurements

● Erection

● Annual inspection

● Maintenance of the spools (evacuation)

● On-site services

Sept 2010

Vacuum Insulated Lines for CO2 (VICO2-Lines)

General

VICO2-Lines are specially designed to transfer liquid or gaseous CO2 with low pressure

drops and a very low heat in leak.

Characteristics

VICO2-Lines have a very low heat in-leak because of the high static

vacuum level. By their design pressure of 40 bar(g) and design temperature

of -78C , these lines are very well suited for many application in several industries.

Description

DeMaCo’s VICO2-Lines basically consists of an inner stainless steel

pipe, which transfers the (liquef ed) CO2, and an outer stainless steel

pipe which forms the vacuum jacket.

The VIP is manufactured in pre-fabricated spools. Normally DeMaCo

supplies spools with a process line of pipe Ø28x1 with a length up

to 5m. Other diameters and / or longer lengths can be supplied at

all times.

The spools are evacuated in our workshop. To ensure a longer pe-

riod of high quality vacuum each spool is helium leak tested and a

vacuum retention test of 24 hours is executed on all spools.

DeMaCo Holland bv

Oester 2

Postbus 4

NL 1723 ZG Noord-Scharwoude

www.DeMaCo.nl

[email protected]

Tel.: +31(0)226 33 21 00

Fax: +31(0)226 33 21 11

ISO 9001 - ISO 3834-2 - PED H/H1 - VCA**

For the connection of the lines, two types of couplings are available. The process lines can be connected by welding or by an union coupling. Both

couplings are conventional insulated and covered with a removable stainless steel sleeve.

Alternative Design conditions, materials, Dimensions, QA or other special requirements can be designed by DeMaCo and shall be quoted on request.

Advantages of DeMaCo VICO2-lines

● Low Price / Short delivery time because of the simple design

● Smaller outer diameter compared to conventional insulated pipe lines

● Up to 30 times lower heat in-leak than conventional insulated pipe lines

● Easy to install

● No external insulation required

● After delivery up to f ve years maintenance free

● Easy extension, re-routing, dismantling and re-using of the line without

af ecting the vacuum of the spools

Additional features

● Appendages (valves, safety valves, gas vents, etc.)

● Cryogenic engineering and design

● On-site measurements

● Erection

● Annual inspection

● Maintenance of the spools (evacuation)

● On-site services


Schedule

• Sept 2012/Mar 2013 – Design

• Dec 2012 / Mar 2013 – Specifications

• Feb 2013/April 2013 - Verification of the design on site

• May 2013 - CMS Technical Coordination review on transfer line project

• June 2013 – Tender

• Sep 2013 – Place the order

• 2014 - Installation on site

• May 2014 - Mandatory availability of the transfer lines


Estimated dimensions (1)

• Inner tube needs about 10 mm diameter

• 110 bar design pressure

• Elastic limit above 1.5x110=165 bar (PED)

• Test at 1.43x110=157 bar (PED)

• 316L tube 12x1 mm, allowable working pressure: 200 bar, source: Swagelok

• Pressure reduction due to bending: TBD

• Increase in wall thickness is acceptable, if required


Estimated dimensions (2)

• Outside tube: DN25

• Pressures identical to inner tube

• EN ISO 1127, 33.7 mm OD, 3.2 mm wall, design pressure 244 bar, source Outo Kumpu

• Elbows with straight ends, ISO R=2D 33.7x3.2 mm, design pressure: 155 bar, source Outo Kumpu

• Welding methods: – By hand

– Orbital welding

– Orbital welding with filler material


Vacuum jacket

• Requesting DEMACO advice on spacing between outer tube and vacuum jacket

• Inner and outer tube have, by design, virtually the same temperature. No thermal expansion issue expected

• Thermal expansion issue between tube (-30 C) and jacket (+25 C)

• Requesting DEMACO advice on solution


Overall goals

• Writing specification for tender • Including DEMACO advice • Respecting your production capabilities • Optimization of cost by including DEMACO

experience • Optimize between on-site and off-site work • Avoiding differences in safety approach between

PED, DEMACO and CERN safety • Receive preliminary approval from safety before

placing the order


Drawing with dimensions


cms pixels upgrade co2 cooling transfer lines · • construction & commissioning of plant and...

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