Re: [MW:29860] vertical vessel piping _first rest support

Dear Georgios,

   We run the flexibility analysis check, since it a small vertical vessel will "Grow" up due to the thermal expansion created by the process temperature & the pipe will grow down thus equalizing some of the vessel vertical " growth". 

   If the vertical columns of length about 15m and above we have to give rigid support near to nozzle. In this case, we verified all the required parameters in flexibility analysis and deleted support.

On Wed, Jul 17, 2019 at 5:24 PM George Dilintas <dilintas@gmail.com> wrote:

did you run flexibility calculations? If you get zero reactions at this support for all loading conditions including pressure test, then you may remove it

Στις Τετ, 17 Ιουλ 2019 στις 10:37 π.μ., ο/η Chiranjeevi A <chiranjeevipuvvula@gmail.com> έγραψε:

Dear all,

  Please find the below, sulfur absorber vessel, The following pipe mtl is A335 P11 and thk. = 14.27mm. The vertical portion is 3.8m only, immediately on the rack we have rest support

   If the vertical portion is long i.e if it about 15m and above, we have to provide rest support either rigid or spring in vertical portion.

As per below snap small vertical vessel and the pipe size 12" sch 60 we have more span. Providing support and if not in the vertical portion doesnt impacting the nozzle loads. The nozzle loads are Fx=Fy=Fz=18Tons and Mx=15tons, My=Mz=7tons. In my point of view first rest support is not required in this case, kinldy share your opinions 

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Dr. Georgios Dilintas,

Dipl. Ing. In Aeronautic and Space Engineering

Ph.D in Mechanics of Solids - Computational Mechanics

A.I.S, A.N.I, IRCA Lead Auditor

Welding, Stress Analysis, Corrosion, QA/QC, Failure Analysis, Risk Analysis

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