Direct Fire to KO Drum 1

[PipingEquipment]

Can someone point me in the right direction to see if direct fire on a KO Drum is acceptable in the code, is there any specific BTU loads that are ok?

A customer wants to put several 500,000BTU burners on the bottom of the tank to warm it up, which sounds like a dangerous and stupid decision, but this is what they think they want. Is this ok to do per code?

 

[unclesyd]

I don't know about your particular situation but it is done in various forms all the time. These people have done a lot heating for us. They have have the ability to keep very good control on the temperature and the heating and cooling rate. A 500,000 BTU isn't a very big burner that said control is the problem. Hot work has the burner external to equipment and uses on hot gases for the heating.

http://www.hotwork.com/index.html

 

[doct9960]

PipingEquipment,

Pressure vessels subject to direct firing is allowed in ASME Section VIII Div. 1 provided it meets the requirements of U-1(h) and UW-2(d).