Page 362 - Compression Machinery for Oil and Gas

346 SECTION II Types of Equipment

FIG. 7.29 Extraction of steam in a steam turbine.

FIG. 7.30 Induction of steam in a steam turbine.

High pressure steam
Reducing
control
valve
Turbine Load
Noise Load: driven
equipment

Low/mid pressure steam
FIG. 7.31 Example of steam turbine exhausting to above-atmospheric pressure.

condenses the steam and reclaims the condensate for the boiler feed water pro-
cess (Fig. 7.32).
Casing or shaft arrangement—Casings designs sometimes indicate the type
of turbine. For example, a casing with double shell or double casing design