sPHENIX discussion of the superconducting solenoid

["Yip, Kin" <kinyip AT bnl.gov>]

Hello Paul,

 

Thanks for the information.  Your plan (purging a few times before moving 1008) is what I’ve expected as we’ve discussed quite a few times. 

I cc: to the mailing list again.

 

Kin

 

From: Orfin, Paul <porfin AT bnl.gov>
Sent: Friday, December 13, 2019 7:46 AM
To: Yip, Kin <kinyip AT bnl.gov>; Than, Yatming (Roberto) <ythan AT bnl.gov>
Subject: RE: [Sphenix-magnet-l] Fwd: Dog house covers ===> can flush with dry nitrogen

 

Kin,

 

The 6 heat shield shipping port restraints is what I was referring to in my previous email.

 

We can use the extension port for the inlet and uncover one of the hanger caps to vent out.  Again, the system is currently in a state that is not vacuum or pressure tight since there are no seals on the restraints.  We will flush out moisture after taping the seams as best we can.  This will minimize moisture from coming in but it is no guarantee that air won’t work its way into the system.  We’d need to occasionally purge the system several times before its move to 1008.

 

Thank you,

Paul Orfin
Cryogenic Systems, Collider-Accelerator Department
Brookhaven National Laboratory
Telephone: (631) 344-2899

 

From: Yip, Kin <kinyip AT bnl.gov>
Sent: Thursday, December 12, 2019 4:21 PM
To: Orfin, Paul <porfin AT bnl.gov>; Than, Yatming (Roberto) <ythan AT bnl.gov>
Subject: Re: [Sphenix-magnet-l] Fwd: Dog house covers ===> can flush with dry nitrogen

 

Hi,

> the shipping ports

I guess  you meant where the heat shield restraints now are installed (and we just found the original 6 valves --- see my other email later).   
But when you first pump in the dry nitrogen, you may use the hole at the top of the extension for one to put in the nitrogen but you need
another release hole ???? 

Kin

On 12/12/19 3:08 PM, Orfin, Paul wrote:

We are still working out the plan.  We will probably seal the shipping ports and purge with nitrogen. Since it can’t hold vacuum nor pressure, the seal will be good enough to keep most moisture out. 

 

If positive pressure is required, then full sealing is needed and we’d have to design something new. I don’t think this is a requirement so it will not be pursued.

 

Thank you,

Paul Orfin
Cryogenic Systems, Collider-Accelerator Department
Brookhaven National Laboratory
Telephone: (631) 344-2899

 

From: Yip, Kin <kinyip AT bnl.gov>
Sent: Thursday, December 12, 2019 1:23 PM
To: Orfin, Paul <porfin AT bnl.gov>
Subject: RE: [Sphenix-magnet-l] Fwd: Dog house covers ===> can flush with dry nitrogen

 

I will not be able to come ... I don't think you need me ?!

 

Can you please let me know what your plan will be after the meeting ?

 

Kin

 

 

 

-------- Original message --------

From: "Orfin, Paul" <porfin AT bnl.gov>

Date: 12/12/19 12:45 (GMT-05:00)

To: "Ceruti, Raymond B" <rayc AT bnl.gov>, "Warkentien, Andreas F" <andyw AT bnl.gov>, "Riker, Kenneth D" <kenr AT bnl.gov>, "Than, Yatming (Roberto)" <ythan AT bnl.gov>

Cc: "Yip, Kin" <kinyip AT bnl.gov>

Subject: [Sphenix-magnet-l] Fwd: Dog house covers ===> can flush with dry nitrogen

 

 

 

_____________________________________________
From: Ceruti, Raymond B <rayc AT bnl.gov>
Sent: Thursday, December 12, 2019 12:42 PM
To: Orfin, Paul <porfin AT bnl.gov>
Cc: Yip, Kin <kinyip AT bnl.gov>
Subject: RE: [Sphenix-magnet-l] Fwd: Dog house covers ===> can flush with dry nitrogen

 

Hi Paul,

 

     How about 1:30 this afternoon in 912?

 

Regards,

Ray

 

From: Orfin, Paul <porfin AT bnl.gov>
Sent: Thursday, December 12, 2019 12:31 PM
To: Yip, Kin <kinyip AT bnl.gov>
Cc: Than, Yatming (Roberto) <ythan AT bnl.gov>; Ceruti, Raymond B <rayc AT bnl.gov>; Warkentien, Andreas F <andyw AT bnl.gov>; Riker, Kenneth D <kenr AT bnl.gov>
Subject: RE: [Sphenix-magnet-l] Fwd: Dog house covers ===> can flush with dry nitrogen

 

Kin,

 

I’d like to meet.  Let me know when is a good time?

 

Thank you,

Paul Orfin
Cryogenic Systems, Collider-Accelerator Department
Brookhaven National Laboratory
Telephone: (631) 344-2899

 

From: sPHENIX-magnet-l <sphenix-magnet-l-bounces AT lists.bnl.gov> On Behalf Of Yip, Kin
Sent: Thursday, December 12, 2019 12:25 PM
To: sphenix-magnet-l AT lists.bnl.gov
Subject: [Sphenix-magnet-l] Fwd: Dog house covers ===> can flush with dry nitrogen

 

Hi,

As you can see from the pictures below, the (Extension) doghouse has been covered with its doors/o-ring.   Thanks to Frank Toldo (and company).

Paul/Roberto : so now, you can flush the Magnet (and also Valvebox) with dry nitrogen.   I chatted with Ray Ceruti.  He can discuss with you in 912 if you
guys want.   He told me that since the 6 covers were off (now mounted with heat shield restraint), they would leak slowly.  If you pump in low-pressure dry nitrogen slowly,
everything (air/moisture/nitrogen) will eventually come out of those 6 unsealed covers.

Kin

-------- Forwarded Message --------

Subject:	Dog house covers
Date:	Thu, 12 Dec 2019 11:36:59 -0500
From:	Frank Toldo <frankeefiggs5 AT gmail.com>
To:	kinyip AT bnl.gov <kinyip AT bnl.gov>
CC:	bstreckenbach AT bnl.gov <bstreckenbach AT bnl.gov>

 

Ok covers are on.