Page 353 - Practical Machinery Management for Process Plants Major Process Equipment Maintenance and Repair

332 Major Process Equipment Maintenance and Repair

Table 8-2
Classification of Steam Turbines with Reference to
Applicatior and Operating t mdition
Operating Steam
Basic type condition condition Application
Condensing High-pressure 100-2,400 psig, )rivers for electric generam,
turbine (with or saturated, blowers, compressors, pumps,
without extraction 1O5O0F, 1-5 in. marine propulsion, etc.
for feedwater Hg abs
heating)
Low-pressure 1-100 psig, >rivers for electric generators,
turbine saturated, 750°F, blowers, compressors, pumps,
1-5 in. Hg abs etc.
Reheat turbine L,450-3,500 psig, Zlectric-utility plants
900- 1O5O0F,
1-5 in. Hg abs
Automatic 100-2,400 psig, Drivers for electric generators,
extraction saturated, blowers, compressors, pumps,
turbine 1O5O0F, 1-5 in. etc.
Hg abs
Mixed-pressure L00-2,400 pig, Drivers for electric generators,
(induction) saturated, blowers, compressors, pumps,
turbine 1050°F, 1-5 in. etc .
Hg abs
Cms-compound $00- 1,450 psig. Marine propulsion
turbine (with or 750- 1 ,O5O0F,
without extractior 1-5 in. Hg abs
for feedwater
heating, with or
without reheat)
Noncondensin SUaight-thiOUgh Mx)-3,500 psig, Drivers for electric generators,
turbine 600- 1050 OF, blowers, compressors, pumps,
atmosphere, etc.
1,000 psig
Automatic m-3,500 psig,
extraction 600- 1050 OF,
turbine atmosphere,
PSig