steam tracing
steam tracing
(OP)
Hi,
I have a line of incondensables+condensables at 40°C that is bare, without insulation and with pockets. The fluid reduces its temperature because it exchanges heat with the ambient (convenction, wind action, radiation, etc) and condenses, so it needs to design a system to avoid liquid accumulation and surge phenomenons. What can be done?
1- Insulating+tracing of the whole line (very expensive)
2- Insulating of the whole line and Insulating+tracing of liquid pockets
3- leave the line bare and Insulating+tracing of liquid pockets (cheapest)
4- Which other?
I think the 3 is interesting but don’t know if someone has never done (who knows?), so I would try to design the 2 + adding a pot in each pocket to solve some failure event
Anyone can give me other solutions or suggestions about design methods and procedures?
Thanks for whichever help
I have a line of incondensables+condensables at 40°C that is bare, without insulation and with pockets. The fluid reduces its temperature because it exchanges heat with the ambient (convenction, wind action, radiation, etc) and condenses, so it needs to design a system to avoid liquid accumulation and surge phenomenons. What can be done?
1- Insulating+tracing of the whole line (very expensive)
2- Insulating of the whole line and Insulating+tracing of liquid pockets
3- leave the line bare and Insulating+tracing of liquid pockets (cheapest)
4- Which other?
I think the 3 is interesting but don’t know if someone has never done (who knows?), so I would try to design the 2 + adding a pot in each pocket to solve some failure event
Anyone can give me other solutions or suggestions about design methods and procedures?
Thanks for whichever help





RE: steam tracing
RE: steam tracing
At start of condensate line, provide check valve and elevate piping so remainder can slope down without pockets to accumulate liquid. Either locate the riser in heated space or insulate and electric heat trace.
RE: steam tracing
Option 3 is a waste, why heat some areas if you are just going to let it cool off again.
Option 2 is a minimum.
I am with Hendersdc on this, I would use electrical tracing so that you only heated when and where it was cold.
Be careful when you insulate. Selecting the correct insulation and surface prep is critical, Corrosion under insulation is a serious issue.
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P.E. Metallurgy, Plymouth Tube
RE: steam tracing
RE: steam tracing
so there are two options:
2- insulating of the whole line and Insulating+tracing of liquid pockets;
5- use electrical tracing so that you only heated when and where it was cold.
Suggestions about design methods and procedures?
lilliput1, I can't elevate the line (it goes from piperack to ground and from ground to rack many times). But one question: when you said "At start of condensate line, provide check valve and elevate piping..." what is the function of check valve upstream the first riser?
What do you main about "adding a pot in each pocket", say 4"x600mm (the line is 2")?
RE: steam tracing
RE: steam tracing
Maybe i didn't understood your suggestion: see att.
RE: steam tracing
RE: steam tracing
RE: steam tracing