feb 2006 as reported by mark dye. p6001a p6001b p6003a n east firewater pond west firewater pond...
TRANSCRIPT
FEB 2006
as reported by Mark Dye
P6001AP6001B
P6003A
N
East firewater
pond
West firewater
pond
P6003B
P6002B P6002A
East isolation
gate
West isolation
gate
Pump house layout
Unpacking P6001A
This is the pumps hydraulic end
With the pump submerged, the water flows up through the shaft housing
The business end!
The pump and first pipe spool being lowered into the well…
…into the icy water below
Looking down through the spool to the pump top below
A shaft bearing is installed between each pipe spool and clamped between the flanges
The bearing is water lubricated and made of PTFE
The shaft joining piece has a left hand thread!
The next pipe spool is lowered into position
Jointing compound
The flanges are bolted together,
then torqued down to 175 ft-lbs.
The support is opened,and the pump is lowered.
With all the parts assembled we have…The pump at approx 2.5 metres
Three spools at 1.7 metres each
One spool at 1 metre
Giving a total of
8.6 metres
Now we need the stuffing box assembly
The stuffing box assembly is unpacked,
And the top bearing assembly removed.
The top bearing assembly is keyed to the shaft because it also contains a ratchet device to prevent back turning of the shaft.
STEADY AS SHE GOES!!!
Thread the shaft through and line up the spool bolts.
The whole assembly now needs to be lifted to remove the spool support. The combined weight is now 3.7 tonnes.
The top bearing is re-installed and
keyed to the shaft.
The coupling housing and motor stand installed.
The coolingwater supply,
…and return, and constant level oiler is fitted.
10kv Electric motor installed
PUMP SPECIFICATIONS
Pump speed 1480rpmTest pressure 33bargRated flow 240 l/s (864t/hr)Head 158.4 mtrs. (15 barg)
The jockey pump is exactly the same as the main pumps,
…only in miniature!
The pump had it’s first test run…
…flushing firemains into the night!