Calculator report for Pig Launcher and Pig Receiver

[juancd200914]

I need to present a calculation memory for a pig launcher and for a pig receiver, there is some format in which it is indicated that it must be presented as the calculation memory of a pig launcher and pig receiver

 

[zdas04]

What the heck is a "calculation memory". Been designing pigging facilities for 30 years and that truly is a new one for me.

[bold]David Simpson, PE[/bold]
MuleShoe Engineering

In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual. Galileo Galilei, Italian Physicist

 

[juancd200914]

the client asks me to give him a report with all the calculations that support the design of the pig launcher based on the conditions of design "pressure and temperature", but before I had not made a report of this type I would like to know if there is any standard in which indicate, what data and minimum calculations I must submit.
Design the trap based on the wall thickness under ASME B31,4 and in function of other traps that were built in the company previously however it is the first time that the client demands a "memoria de calculo", if you can help me with information for the design of pig launcher I would be very grateful, I do not have much experience in this topic.

regards

 

[LittleInch]

"memoria de calculo" might translate exactly as calculation memory, but it's meaning is much more like

Calculation Report (or notes or log).

Given that you're designing to ASME B 31.4, you simply write a mechanical design report for this item following the calculations required in 31.4 for a pressurized piece of pipe.

so start with the data, Pressure, temp, size, design factor, type and grade of steel etc then calculate the wall thickness for the two barrels.

You might need to do a quick stress check as the trap will be supported on two legs so has some small bending moments.

Job done.

Or ask the vendor to produce one.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[zdas04]

I would add structural calcs for the piers and if the receiver is inside the fence of a facility that was built to some other standard than B31.4 (most facilities are built to B31.3) then I would add those calcs for the receiver even if it is upstream of the spec break, plant guys get uncomfortable with piping code inside the plant fence.

[bold]David Simpson, PE[/bold]
MuleShoe Engineering

In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual. Galileo Galilei, Italian Physicist