Thermal insulation valve s dome
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port3r-dn2-h605 1-ABC51DO500. Thermal Insulation Valve's Dome. I designed the thermal insulation on the valve's dome KKS: 1-ABC51DO500 and after, I checked the possibility for the others domes. Assembly procedure step by step.

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Thermal Insulation Valve's Dome

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Thermal insulation valve s dome

port3r-dn2-h605

1-ABC51DO500

Thermal Insulation Valve's Dome

I designed the thermal insulation on the valve's dome KKS: 1-ABC51DO500 and after, I checked the possibility for the others domes.


Assembly procedure step by step

Assembly procedure step by step

  • In the first time, we have changed the Temporary support, to allow the assembly procedure of the Thermal insulation.

New

Temporary Support

Old

Temporary Support

I propose to change the length of rings, and remove the top part of the old support.


Thermal insulation valve s dome

Assembly Procedure Thermal Insulation of the valve's dome:

1 – Assembly the Outer Vessel Shield on the Outer Vessel (OV)

a - Before the assembly, we have clamped the copper tresses on the OV Shield

b - Before the mounting we put of extensions (a Tongue) on the OV shield at some place define before to fix the disc on the OV shield. (See sketch 1)

2 – To insert the OV with the OV shield on the Magnet system

a - We consider a efficient gap of 20mmfor the mounting Procedure between the OV shield and the Valve's Dome

b - We consider the geometrical tolerances are given by DWE (see Appendix I,II)

3 –We make the thermal contact between the OV shield and the valves

a– This thermal contact is done by copper tresses.

b - The copper tresses are fixed by riveting

Step 3


Thermal insulation valve s dome

RintDome = 130,5mm

Minimum

Mounting space

20mm

Disc Shield

Rivet

Rtongue = 100mm

Tongue

RDisc = 125,5mm

OV Shield

RintOVShield = 130mm

Sketch 1:


Thermal insulation valve s dome

4 – We insert the disc to close the Shield

a - The disc is inserted by the top, and clamped on the OV shield.

b - We consider the geometrical tolerances are given by DWE (see Appendix I,II)

5 – We insert the MLY (M. Pietsch)

6 – weld the OV extension

7 –Close the Dome

8 – Remove the Temporary Support (M. Müller)


Thermal insulation valve s dome

Copper Tresses

New

Temporary Support

Picture show the valve assembly


Thermal insulation valve s dome

Conclusion:

1 – We do to check the mechanical stresses with the new temporary support.

2 – I have checked the compatibility of the previous solution shown with the others domes, and, if it is possible to change the Temporary support, this solution can be used on the all normal dome

3 – If we take the worst case, we have need a diameter of OV shield = 260mm

We consider the tolerance for mounting procedure 20mm, the tolerance of assembly procedure of the dome 7mm, of the Valve 5mm, the tolerance to manufacturing for the dome +2/-3mm at the Diameter and, the tolerance to manufacturing for the OV Shield -3,5mm at the radius. (see Appendix III).

4 – For the special Dome (1-ABC50TG00AEC), there is an other solution of the thermal insulation.


Thermal insulation valve s dome

Appendix I


Thermal insulation valve s dome

Appendix II


Thermal insulation valve s dome

Appendix III

RintDome = 130,5mm

RintOVShield = 130mm

RDisc = 125,5mm

RValve = 63mm

Minimum

Mounting space

20mm

+5mm

+7mm

-1,5mm

Valve

Disc Shield

- 3,5mm

RDisc Valve = 30mm

Disc Valve


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