2000 Hook-up Book - Spirax Sarco
2000 Hook-up Book - Spirax Sarco
2000 Hook-up Book - Spirax Sarco
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Figure II-84<br />
Flash Steam Condensing by Spray<br />
H.P. Condensate<br />
Boiler<br />
Make<strong>up</strong><br />
Tank<br />
Vent<br />
Residual flash steam for which no<br />
use can found often causes a nuisance<br />
if vented to atmosphere, and of<br />
course carries its valuable heat content<br />
with it. This steam may be<br />
condensed by spraying in cold water,<br />
in a light gauge but corrosion resistant<br />
chamber fitted to the receiver<br />
Flash<br />
Condenser<br />
Condensate Receiver<br />
Centrifugal<br />
Pump<br />
Temperature<br />
Control Sensor<br />
Self Acting<br />
Temperature<br />
Control<br />
Strainer<br />
tank vent. If boiler feed quality water<br />
is used, the warmed water and condensed<br />
flash steam is added to the<br />
condensate in the receiver and<br />
reused. Condensing water which is<br />
not of feed water quality is kept separate<br />
from the condensate in the<br />
receiver as shown dotted.<br />
Overflow<br />
Cooling<br />
Water<br />
(Alternate)<br />
Waste<br />
A self-acting, normally closed temperature<br />
control with sensor in the<br />
vent line can control the coolant flow.<br />
This minimizes water usage, and<br />
where condensed flash steam is<br />
returned, avoids overcooling of the<br />
water in the receiver.<br />
HOOK-UP DIAGRAMS<br />
127