pa1778data.pdf

U.S. STEEL DUQUESNE WORKS
HAER NO. PA-115
(Page 80)
approximately 10'-0" wide x 10'-0" long x 7'-0" high cast iron
casing which encloses the rotor. The casing is divided
vertically by diaphragms into separate compartments in which the
impellers revolve, and horizontally along its centerline. The
upper and lower halves of the casing are securely bolted and
doweled together. Located at the bottom center of the blower at
its southern end is a 66" diameter flanged air intake connection
which is bolted to a 66" diameter air intake pipe. Air is drawn
into the blower through the hooded air intake pipe which runs
vertically alongside the outside south wall of the building at
its eastern end. Located at the bottom center of the blower at
its northern end is a flanged 42" air discharge connection. The
compressed air is taken from this connection through a 42"
diameter pipe which runs horizontally along the outside of the
building's south wall to a pipe bridge where it is connected to
the cold blast main.
d. Drive Shaft: The approximately 6" diameter drive
shafts from the turbine and blower are connected together at the
center of the turboblower by a flexible coupling.
2. Turboblower Number One Lubrication System: Located on the
floor of blow engine house number two underneath the turbine is
the lubrication system for turboblower number one. Manufactured
by the Bowser Company of Fort Wayne, Indiana, the lubrication
system consists of two oil coolers, two strainers, an oil
conditioner, and a 1/2 hp motor connected to a oil recirculating
pump. Installation Date: 1951.
3. Turboblower Number One Surface Condenser: The
approximately lO'-O" wide x 23'-0" long x 8'-0" high Ingersoll -
Rand surface condenser is bolted to turboblower number one at its
72" diameter, flanged exhaust steam connection. Laid out on a
north-south axis, the centerline of the condenser is located 12'-
5" from the floor. It consists of a cast iron shell enclosing a
large number of 1/4" diameter tubes. Located on the western side
of the surface condenser near its northern end is a 18" diameter
flanged inlet and a 18" diameter flanged outlet connection for
the service water passing through the tubes. Two 4" diameter
flanged connections for the purpose of condensate removal are
located on the underside of the surface condenser shell near its
centerline.
Installation Date: 1951.
a. Air Ejectors: Attached to the surface condenser of
turboblower number one on its eastern side near its centerline
are two Ingersoll - Rand, Series M, Steam Jet Air Ejectors. Laid
out vertically, each 3'-3 9/16" long ejector has a 2" screwed