2000 Hook-up Book - Spirax Sarco
2000 Hook-up Book - Spirax Sarco
2000 Hook-up Book - Spirax Sarco
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Figure II-82<br />
Recovery of Flash Steam and Pump Power Steam on Preheater (Steam in the Shell)<br />
To<br />
Vent<br />
Pilot<br />
Operated<br />
Back<br />
Pressure<br />
Valve<br />
Strainer<br />
Flash<br />
Recovery<br />
Vessel<br />
Safety<br />
Valve<br />
To<br />
Vent<br />
Drip<br />
Pan<br />
Elbow<br />
Pre-Heater<br />
Condensate from the main heat<br />
exchanger flows to a flash Steam<br />
Recovery Vessel. The flash steam is<br />
separated and led to the Preheater<br />
where it is condensed as it preheats<br />
the incoming cool water or other liquid.<br />
Any incondensibles are<br />
discharged to atmosphere through<br />
the thermostatic air vent.<br />
Air<br />
Vent<br />
Check<br />
Valve<br />
Pipe to<br />
Safe<br />
Place<br />
Sensor<br />
Pressure<br />
Powered<br />
Pump<br />
Heated<br />
Outlet<br />
Cool<br />
Return<br />
Strainer<br />
Thermo-Dynamic<br />
Steam Trap<br />
Motive Steam S<strong>up</strong>ply<br />
Check<br />
Valve<br />
Vacuum<br />
Breaker<br />
Temperature<br />
Control<br />
Valve<br />
Float &<br />
Thermostatic<br />
Steam Trap<br />
Strainer<br />
Residual condensate from the flash<br />
vessel, with that from the preheater,<br />
falls to the inlet of the Pressure<br />
Powered Pump. Pump exhaust steam<br />
is taken to the Flash Steam line and<br />
its heat content recovered in the preheater.<br />
Air<br />
Vent<br />
Heat Exchanger<br />
Check<br />
Valve<br />
Pipe to<br />
Safe<br />
Place<br />
Float &<br />
Thermostatic<br />
Steam Trap<br />
Moisture<br />
Separator Strainer<br />
To<br />
Condensate<br />
Return<br />
A Packaged Pump Unit with ASME<br />
coded receiver can be used in place<br />
of the component flash vessels and<br />
Pressure Powered Pump.<br />
Steam<br />
S<strong>up</strong>ply<br />
HOOK-UP DIAGRAMS<br />
125