Boiler room steam distribution header
Boiler room steam distribution header
(OP)
What are the most important things to consider when designing the boiler room steam header?
Should velocities be the same as the boiler discharge outlet? Should the spacing of the discharge and inlet pipes be the same as pipe rack spacing? Should the header have a slope for draining of condensate?
Should velocities be the same as the boiler discharge outlet? Should the spacing of the discharge and inlet pipes be the same as pipe rack spacing? Should the header have a slope for draining of condensate?





RE: Boiler room steam distribution header
RE: Boiler room steam distribution header
How much distance should be allowed between the steam header inlets and steam header outlets?
For example: I have three boilers 600hp 125psig 8inch steam outlet is 10inch size
steam distribution header is 12inch size
drip legs qty.2 each 6inch diameter
RE: Boiler room steam distribution header
boiler steam outlet 8 inch
steam header 12 inch
steam outlet to system 10 inch
drip legs qty. 2 size 6 inch each.
RE: Boiler room steam distribution header
The boilers can make about 60,000 lbs per hour, in total. You can push that much at 125 through a short run (maybe 100 - 200 feet or so) of 8", and still live with the pressure drop. 10" would likely be the right size to run in a factory, being fed off a 12" header. I'd slope the header slightly to one drip & trap. If you figure out the condensate you'll have to handle at the header, it'll be pretty small.
Remember that to run a header pressure of 125 PSIG, the boilers will likely have 150 PSIG safety valves on them. Please don't fill your steam system with 125# cast iron valves, stainers and trap bodies.
RE: Boiler room steam distribution header
there is agood information on the learning center from Spirax Sarco (http://www.spiraxsarco.com) regarding the details of the headers for a Boiler.
One detail that they mentionend was to avoid, in boiler operating at the same time, that the pressure lost of from each boiler to the header is not even! I could tell you more but they already write it so good luck.