Re: Steam Turbine vibrations

From: <Emmanuel>
Date: Sun Mar 24 2002 - 17:37:00 EST

How often are the vibration instruments check or calibrated? Please check "Trending" of your results. Also, check very carefully your steam quality. It might not be carrying over slugs that are deposited on the blades.
Manny
--- RaviRaj_Rastogi@ril.com wrote:
>
>
> Hi all !
> I am looking for instances/experiences of members,
> wherein Piping has
> caused vibrations in Turbines. Any inf. / literature
> that gives insight
> into turbine vibrations is requested.
>
> In my case, the SteamTurbine had been doing well for
> almost 2 years of
> operation and it's now observed that the vibration
> levels have exceeded the
> vendor specified limits. Can this deterioration in
> machine performance be
> attributed to loads exerted by Piping. All the
> analyses of the connected
> lines, shows the nozzle loads within allowables.
> Your opinion on the same
> requested.
>
> Thanks in advance...
>
>
>

---

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