down/condensate coolers are designed to receive blow down from a steam
boiler, flash the blowdown to steam, and cool the condensate going
to drain. CEMLINE Blow Down/Condensate Coolers are ASME code constructed
and stamped for 150 PSI working pressure. Minimum Steel thickness
is 3/16" where conditions require these vessels to be constructed
with 1/4", 3/8" or ˝" steel thickness.
The blow down enters the tangential
inlet where it meets a 90 degree stainless steel wear plate. The wear
plate will prevent erosion of the side wall of the vessel. The tangential
blow down entry causes the blow down to swirl around the circumference
of the vessel where part of the liquid will flash to steam and the
balance will settle to the bottom. The internal flash will go through
the vent to atmosphere and the hot condensate and sludge will fall
to the bottom where it will flow by gravity to the drain leg.
temperature of the condensate will activate the thermal control valve
which will feed cold water into the drain leg where the cold water
and hot condensate will mix. This results in drained liquid temperature
which is acceptable for municipal sewage. The Blow down vessel is
available without the condensate cooling leg.