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6 comments
Participant

Join Date: May 2012
Posts: 3

Tube Bundle Heat Exchanger

05/02/2012 8:47 AM

Does anyone have any photo's or a sketch on a hyrdo test fixture for tube bundles?

I am looking at leak testing the expanded tubes in the tube sheets

I am new to this area and do not want to reinvent the wheel.

Thanks

Troutlake

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Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain - possibly to become "South Scotland" or "Non-Caledonia" from September 2016. Kettle's on.
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#1

Re: Tube bundle heat exchanger

05/02/2012 9:23 AM

Er, why not flange onto the exchanger's inlet and outlet pipework connections? One would test any joints in the exchanger structure at the same time.

Do make sure the test is witnessed by the Engineer/Surveyor for the company that is supplying burst indemnity insurance cover for the equipment, or it will need to be repeated in that individual's presence.

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Participant

Join Date: May 2012
Posts: 3
#2
In reply to #1

Re: Tube bundle heat exchanger

05/02/2012 10:23 AM

Thanks,

That is our plan, to connect to each side.

For this particular heat exchanger however, the stationary and the floating tube sheets are not tied together by tie rods.

What would a free body diagram look like with test plates attached?

16 inch dia at 225 psi, 300 degree F

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Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain - possibly to become "South Scotland" or "Non-Caledonia" from September 2016. Kettle's on.
Posts: 22743
Good Answers: 588
#3
In reply to #2

Re: Tube bundle heat exchanger

05/02/2012 10:36 AM

Why? - Is a mechanical re-design on the cards?

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Participant

Join Date: May 2012
Posts: 3
#4
In reply to #3

Re: Tube bundle heat exchanger

05/02/2012 11:18 AM

This is a replacement heat exchanger or was the question directed towards the test?

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Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain - possibly to become "South Scotland" or "Non-Caledonia" from September 2016. Kettle's on.
Posts: 22743
Good Answers: 588
#5
In reply to #4

Re: Tube bundle heat exchanger

05/03/2012 3:12 AM

Well, if it's a one-for-one replacement, just give it a squeeze and see what happens.

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Guru

Join Date: Nov 2007
Posts: 519
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#6

Re: Tube Bundle Heat Exchanger

05/03/2012 8:46 AM

You'll need an inspector to sign of on it. The inspector doesn't have a suggestion? Or if the inspector doesn't know, you should probably find a new inspector.

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Users who posted comments:

cingold (1); PWSlack (3); Troutlake (2)

Previous in Forum: Mechanical Piping   Next in Forum: Relation Between Water Holding Capacity to Steam Flow