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Home > Forums > Mechanical Engineers > Activities > Boiler and Pressure Vessel engineering Forum

vibration support bar for the pendant superheaters

Read More Threads Like This One

senthil83 (Mechanical)

26 Jun 12 3:05

Dear all

WE ARE USING THE VIBRATION SPACER BARS FOR THE HORIZONTAL ECONOMISER AND SUPERHEATER COILS, BUT FOR THE PENDANT SUPERHEATER COILS WE ARE NOT USING THE VIBRATION SPACER BARS,
ONLY THE ALIGMENT BARS LIKE D-LINKS ARE USED.

PLEASE CLARIFY ME WHETHER THE VIBRATION IS NOT A CONCERN FOR THE PENDANT SUPERHEATER COILS?

thanks

senthil kumar.B

vpl (Nuclear)

26 Jun 12 9:04

I was wondering if your cap key was broken. I guess it wasn't. So are you shouting at us? (The usual reason people use all CAPS)

Perhaps you might want to explain your reasoning why you decided not to use vibration spacer bars for the pendant superheater coils. Did you do any analysis? Was is financial and you are now looking for someone to provide an after-the-fact technical justification?

Patricia Lougheed

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senthil83 (Mechanical)

27 Jun 12 0:58

dear vpl,

i didn't want any after fact technical justification, while i am going thru' previous done examples i just got doubt, i have not done any analysis.

please post if you any suggestion about the doubt,
DON'T WRITE LIKE THIS.

THANKS

rmw (Mechanical)

2 Jul 12 20:29

Velocity is one major cause of vibration in tubes. Do some calculations to see how much the vibration varies between the pendants and the horizontal coils.

rmw

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