...can be designed in accordence with API 650...?

[manohar matcha]

Dear members,

Following situation/type of tank can be designed inaccordance with API 650...?

situation:

- Vertical cylindrical shell, dia 2650mm
- height, 3500mm
- tank bottom: 2:1 ellipsoidal dished head
- tank top: flat closing (stiffners welded from inside surface) - plate welded to shell (on top plate agitator arrangement will be mounted)
- tank supported by 04 legs

if not API 650, inaccordance with which code/standard this tank can be designed? 

Please advise/share your views. 


Regards,
Manohar.

[K.M Hrishikesan]

Hi Manohar

 

API 650 tanks are generally for storage service at atmospheric pressure. Also the bottom of the API 650 tanks are uniformly and fully supported.Hence not applicable in this case.

In your case it is an agitated vessel which will have certain amount of internal pressure according to the intended service conditions.So this is a pressure vessel which can be designed as per ASME section VIII div I with special process design of agitator assembly. Leg supports with lugs can be designed as per the methods described in process equipment design books such as Brownell&Young.

The entire design of the vessel can be performed using design softwares such as PVelite.

 

Regards

 

Hrishikesan

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[saqib jalal]

you can also consult the book PRESSURE VESSEL HANDBOOK by MAggosy

it had detailed description from dish end to supports emphasizing on
ACSE ASME standards

On 2/3/10, K.M Hrishikesan <hrish...@gmail.com> wrote:
> Hi Manohar
>
> API 650 tanks are generally for storage service at atmospheric pressure.
> Also the bottom of the API 650 tanks are uniformly and fully supported.Hence
> not applicable in this case.
> In your case it is an agitated vessel which will have certain amount of
> internal pressure according to the intended service conditions.So this is a
> pressure vessel which can be designed as per ASME section VIII div I with
> special process design of agitator assembly. Leg supports with lugs can be
> designed as per the methods described in process equipment design books such

> as *Brownell&Young.*

> The entire design of the vessel can be performed using design softwares such
> as PVelite.
>
> Regards
>
> Hrishikesan
>
> On Wed, Feb 3, 2010 at 4:25 PM, manohar matcha
> <match...@rediffmail.com>wrote:
>
>> Dear members,
>>
>> Following situation/type of tank can be designed inaccordance with API
>> 650...?
>>

>> *situation:*

>>
>> - Vertical cylindrical shell, dia 2650mm
>> - height, 3500mm
>> - tank bottom: 2:1 ellipsoidal dished head
>> - tank top: flat closing (stiffners welded from inside surface) - plate
>> welded to shell (on top plate agitator arrangement will be mounted)
>> - tank supported by 04 legs
>>
>> if not API 650, inaccordance with which code/standard this tank can be
>> designed?
>>
>> Please advise/share your views.
>>
>>
>> Regards,
>> Manohar.
>>
>>

>> <http://sigads.rediff.com/RealMedia/ads/click_nx.ads/www.rediffmail.com/signatureline.htm@Middle?>

>>
>> --
>> To post to this group, send email to material...@googlegroups.com
>> To unsubscribe from this group, send email to
>> materials-weld...@googlegroups.com
>> For more options, visit this group's bolg at
>> http://materials-welding.blogspot.com/
>> The views expressed/exchnaged in this group are members personel views and
>> meant for educational purposes only, Users must take their own decisions
>> w.r.t. applicable code/standard/contract documents.
>>
>
> --
> To post to this group, send email to material...@googlegroups.com
> To unsubscribe from this group, send email to
> materials-weld...@googlegroups.com
> For more options, visit this group's bolg at
> http://materials-welding.blogspot.com/
> The views expressed/exchnaged in this group are members personel views and
> meant for educational purposes only, Users must take their own decisions
> w.r.t. applicable code/standard/contract documents.
>

--
with Regards

SAQIB JALAL
Inspection Engineer
PakArab Fertilizer Limited
Khanewal Road , Multan
office number +92-61-9061 EXT 3110
mobile number +92-321-4043556