Hi all,
I want to ask a question related to internal welded baffle plate for a two phase separator.
In order to calculate the plate thickness, I have currently used formulas available for rectangular plate of a tank given in Megeysey pressure vessel handbook
Is my approach correct? Is there...
Hi all,
I am designing a vertical vessel.
Design P = 150 Psig
Design temp = 150 Deg C
MOC = SA 516 70N
There are two shells of ID 36" and 30". These two are connected via an eccentric reducer. I need to put two stiffener rings at both the large and small ends in order to satisfy reinforcement...
Hi all,
We are designing a high temperature S&T exchanger having the following design conditions
Shell side
Design P: 2.5 Bar
Design T: 160 Deg C
Tube side
Design P: 2.5 Bar
Design T: 480 Deg C
We used the following materials for tube side owing to high temperature
Channel shell: SA 387...
Hi all,
Can anyone share a real time picture of baffle arrangements for a vertical heat exchangers. How is bottom most held in its place by using strips on baffle plates and strip type support plates?
thread794-380626
Referring to sharmas comment, Does it mean that there is no requirement of PFHT for 316L material regardless of any strain precentage and temperature?
Hello,
My vendor is welding a A 36 lifting on a vessel made of SA 240 316L. The pad material used for the same lug is SA 240 316L. However, the weld joint between lifting lug and pad is a CS to SS joint. The vessel is not painted and is insulated. I want to ask if there is chance of galvanic...
Hi all,
Can anyone tell the standard for a lwn rtj nozzle flange??
I checked out in asme b16.5 but I only found WN Rtj type flanges.
Are there no standard lwn rtj type flanges available?? Are they custom made??
I am working on a vessel having a pressure of 210 bar and 2500 ID. The client wants...
Hi all,
I have a vessel, having an MDMT of -44 Deg C. I am using SA 516 70 for shell and heads. The design pressure is 98 bars at which the thickness of shell and heads is coming as 106mm. Since, the impact test is mandatory, should I ask the vendor to take normalized material or is there no...
Hi all,
Referring to TEMA table CB-4.41, it mentions that "end spaces between tubesheet and baffles are not a consideration"
I am somewhat confused with a statement that looks pretty straightforward and self explanatory. In my case, there is a vertical heat exchanger (BEU) type having an ID of...
I have a vessel (vertical) that is made from SA 240 316L. The EFE of the head (2:1 ellipsoidal) is at 8.5%. I am confused if there is any post forming heat treatment required for this head. If I look into Table UHA 44, the temperature ranges for 316 grade are given. But, it does not mention...
Hi,
Well I have never been at site and I am new to designing S and T exchangers. I wanted to know the difference between the arrangement of sliding plate (sliding shoes, rods etc) and seal strips. I know the difference between the purpose they both serve but I dont know how are they placed. As...
Hello,
I have a question regarding the use of appendix 2 flanges vs standard flanges
If the diameter of heat exchanger is such that standard flange of ASME B16.47, series A can be used, should you go for a standard body flange or a non standard flange??
Since, I have noticed that a standard...
Hi guys,
I want to calculate the expansion that tubes of a shell and tube heat exchanger could be subjected to operating at a temperature of 200 Deg C. The tube material is SA 213 TP304L. The material has a nominal composition of 18Cr 18Ni. This categorizes as a group 3 material as per ASME Sec...
