2000 Hook-up Book

Figure II-82 Recovery of Flash Steam and Pump Power Steam on Preheater (Steam in the Shell)

To Vent

Safety Valve

Pilot Operated Back Pressure Valve

Motive Steam Supply

To Vent

Check Valve

Drip Pan Elbow

Air Vent

Air Vent

Vacuum Breaker

Moisture Separator

Pipe to Safe Place

Pipe to Safe Place

Strainer

Strainer

Temperature Control Valve

Steam Supply

Sensor

Heated Outlet

Heat Exchanger

Pre-Heater

Check Valve

Cool Return

HOOK-UP DIAGRAMS

Float & Thermostatic Steam Trap

Check Valve

Strainer

Flash Recovery Vessel

To Condensate Return

Float & Thermostatic Steam Trap

Strainer

Thermo-Dynamic Steam Trap

Pressure Powered Pump

A Packaged Pump Unit with ASME coded receiver can be used in place of the component flash vessels and Pressure Powered Pump.

Residual condensate from the flash vessel, with that from the preheater, falls to the inlet of the Pressure Powered Pump. Pump exhaust steam is taken to the Flash Steam line and its heat content recovered in the preheater.

Condensate from the main heat exchanger flows to a flash Steam Recovery Vessel. The flash steam is separated and led to the Preheater where it is condensed as it preheats the incoming cool water or other liq uid. Any incondensibles are discharged to atmosphere through the thermostatic air vent.

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