Design of Horizontal & Short Vertical Vessels. الأول : هو احنا هناخد إيه...
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Transcript of Design of Horizontal & Short Vertical Vessels. الأول : هو احنا هناخد إيه...
Vessel DesignDesign of Horizontal & Short Vertical Vessels
السكشن؟ : في النهاردة إيه هناخد احنا هو األولهناخد : Vessel Designالثاني
يوووووووووووووووووه : هناخد األول امتى؟ Reactorأمالال : سكشن على قصدك أنا non-isothermalالثاني يعني؟
ال على امبارح السكشن بتاعة االعالنات : MBC 2شفت وقالك Coming Soon on December ال شاشة على وحصريا فقط
MBC 2وقاعدين : كدة ورايقين فايقين ازاي انتو عارف مش أنا الثالث
أنا اللي بالكارثة حاسين ومش إيه هناخد ومش إيه هناخد تقولوافيها
!!! يابني؟ : إيه كارثة واحد نفس في االتنينإجابة : له أالقي ونفسي جدا ومحيرني مصيري بجد سؤال الثالث
قلبي : وقعت بقى وتقول تخلص ما ياعم األولترى : يا !!!!!!!!!!!!!!!!!!!sheetالثالث مسألة؟ كام النهاردة
A Real Tall Vertical Vessel
Sheet 5: 2 Problems
Design of Short Vertical Vessels (L < 6m)
Sheet 5: 2 Problems
In designing short vessels, we firstly calculate the
thickness of shell and heads according to the
operating pressure [i.e. internal or external]. In this
case we will not do checks on the thickness as done
in tall vessels so, we will design the support directly.
Lug Support
The use of lugs is typically limited to vessels of small to medium diameter (1 to 10 ft.) and moderate height-to-diameter ratios in the range of 2:1 to 5:1.
And of Course Sheet5: 2 problems
Design of Lug support:
After calculating fs, you should select the dimension of pipe (lug) and check on your selected dimensions [i.e. check if the lug supports will withstand the load applied on it]. Following are the steps used to select the suitable pipe dimensions:
1. From the following table, assume nominal diameter to get the inside and
outside diameter of the pipe. Begin your assumption with nominal
diameter = 2" [always take the Schedule number = 80].
Sheet5 : 2 Problems
Sheet 5: 2
Problems
2. Calculate the radius of gyration (r) from the following
equation:
3. Calculate the value of h’/r.
4. Make the check on the selected pipe dimensions
according to the value of h’/r . Those values are
summarized in the following table:
r
h' 60
'
r
h 200
'60
r
h 200
'
r
h
The Check
Relation pipeallpipe
s
A
f
2
.
.
'*
11
rhA
f
pipe
pipe
all
all
pipe
s
..min
.min'2
'
**
*5
cal
critical
scritical
IIh
IEF
fF
5. If the corresponding check is not correct, assume another nominal
diameter [greater than 2"] and repeat the above steps.
Assume:
Design of Bearing Plate:
In order to check on this assumption, use the following formula:
Design of Anchor Bolts:
If σtension) max = - ve value: the number of bolts equal 4 used for fixation.
If σtension) max = + ve value: the number of bolts calculated from the
following equation:
Design of Horizontal Vessels
Hello !?I just want to
tell u that sheet5 : 2 problems
Design of Saddle Support: or
Design of Horizontal Vessels
Sheet5: 2 Problems
In Mass Transfer?
!
Assume:
I’ll go to the section now .
I don’t know which subject but they told
me that Sheet5: 2 Problems
Design of Bearing Plate:
Assume:
Design of Anchor Bolts: only 4 bolts for fixation
Sheet5: 2 problems?
Yes
Sheet 5
1. A pressurized vessel lined internally with 4 mm Nickel material is to be fabricated and
installed out of doors in Mostorod area. The vessel has the following specifications:
Shell inside diameter 1.5 m
Shell length 4 m
Maximum internal pressure 20 atm.gage
Operating temperature 150ºC
Lug support height 2 m
No. of lugs 6
Corrosion allowance 1 / 16 in.
Insulation thickness 2 in.
Shell material C.steel
Allowable tensile strength of material of construction 15000 psi
Head type Dished
Specify the design for:
- Shell & heads.
- Lug support, bearing plate & anchor bolts.
- Maximum permissible vacuum applied in the vessel.
2. A process horizontal vessel is to be fabricated and installed out of doors. The vessel
has the following specifications:
Shell inside diameter 1.1 m
Shell length 2.1 m
Maximum internal pressure 10 bar
Distance between two supports 1.25 m
Operating temperature 150ºC
Support height 1 m
Fluid Heavy hydrocarbon
Corrosion allowance 3 mm
Insulation thickness 50 mm
Shell material Carbon steel
Allowable tensile stength of material of construction 1000 kg/cm2
Type of heads Dished
Specify the design for:
- Shell & heads.- Support, bearing plate and anchor bolts.