ERECTION PROCEDURE FOR BOILER STACK

[cilacap]

Dear all guys,

We have been performing project Built a Water Tube Boiler Cap.110 ton/h, specification standard refer to ASME. In near future we will erect the Boiler Stack, nevertheless I have still to prepare the Erection Procedure for Boiler Stack. If any guys have a standard procedure for this activity, would you please to give me that standard, or if any guys know the references of this erection procedure, please inform me so I can seek that references. For information, the stack total heights is 61M and diameter 2.2 M. Status now, stack already finished fabrication and separated in 6 segments.

Thank you and appreciate for attention and respect for your reply.

Regards

Ari Dwikoranto

 

[dvd]

I am not a boiler erection expert, but I can tell you that I had a stack designed recently and one of the analyses that was conducted was erection stresses. If you didn't design the stack yourself, I would recommend that you ask the designer to specify an erection procedure.

 

[JoeTank]

cilacap,
With all due respect, I do not think you should be writting an erection procedure for a stack. If you have to ask such a basic question, you may not be the best qualified to do write this procedure. I suggest you find someone with some hands-on experience.

Joe Tank

 

[JStephen]

Typically, the company actually doing the erection is the one that would come up with the procedure. The general method is "Lift piece into place, weld, repeat". It is the details that require some thought, and the details would vary according to who did it, the size of cranes available, the type of scaffolding available, etc.

 

[panelman]

start at the bottom?

 

[meca]

My company specializes in stack design, and the earlier posts are correct. You need to know how the stack was designed to be lifted, before a procedure can be written. The lift procedure is usually prepared by the company performing the lift, but they take into consideration the way in which the stack was designed to be lifted. For example, even though the stack was shipped in 6 pieces, it may have been designed to have 2 or more sections welded together and lifted as a single unit, to minimize welding in the air.

Thanks,

Chris

http://www.mecaenterprises.com