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An
altered
cross section of HAIDA on display at the museum in Hamilton, with the
machinery and related spaces labelled by this author. Bunker C oil,
stored in the four
oil fuel tanks, was burned by the three Admiralty boilers to produce
saturated (to heat the ship) and superheated (for the turbines) steam,
the latter of which was supplied to the two Parsons geared turbines in
the engine room, before being run through a condensor cooled by
seawater and returned to the boilers. Power from the turbines was
transferred to the two propeller shafts by the two gearboxes located in
the gearing room. Powerplants in contemporary British destroyers,
including C and V class ships in Canadian service, would have been very
similar differing mainly, if at all, in the number and/or type of
boilers. Cross section image is courtesy of Parks Canada.
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#3 Boiler Room ?
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2
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Diagrams of an Admiralty 3-drum boiler displayed in
HAIDA's #3 boiler room. HAIDA has three of these 3-drum boilers, in
three
pressurized boiler rooms. Boiler rooms #1 and #2 are served by the
forward funnel, while boiler room #3 is served by the after funnel.
Diagram is courtesy of Parks Canada.
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3
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Schematic model of HAIDA's water handling system, on
display in
HAIDA.
Schematic model is courtesy of Parks Canada.
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4
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5
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Looking aft along the starboard side of the #3 boiler.
The label on the
gate valve back by the bulkhead reads "Main Circulating Valve and Weed
Box". The boiler is to the right of the photo.
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6
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Looking aft along the starboard side of the #3 boiler,
showing
open hatches that expose the water (or "generator", if you look at
Image #2) tubes. The boiler feet can be
seen under the cylinder running under the edge of the boiler, and the
boiler seating can just be seen at the bottom left of the photo.
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7
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Looking to starboard at the forward end of the boiler
room.
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8
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Looking forward and to port at the forward end of the
boiler room.
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9
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Looking left of the previous photo, to the port side at
the forward end of the boiler room. The bottom of the two large dials
in the background is the engine telegraph, while the upper is an oil
fuel pressure dial and sprayer indicator.
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10
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Part of the forced air ventilation system. From Jerry
Proc:
"Those are the pressurizing fans for the boiler room. If
the boiler room lost sudden pressure such as having both air locks open
at the same time,
the flames in the boiler would shoot out the front of the boiler and
and seriously burn anyone standing in front of the flame ports."
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11
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Face of the #3 boiler, looking aft and to port, from
the forward end of the boiler room. The boiler faces forward.
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12
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Looking up towards the underside of the deckhead in the
forward end of the boiler room.
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13
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The front face of the #3 boiler, showing the oil fire
registers.
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14
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The "Lighting Up Pump", just forward of the Main
Circulating Valve.
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15
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Looking forward along the starboard side of #3 boiler
room.
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16
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Looking up and to starboard at the forward end of #3
boiler room.
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| 17 |
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Looking to starboard
along the forward bulkhead in #3 boiler room.
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| 18 |
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Looking up the forward
bulkhead in #3 boiler room.
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| 19 |
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Looking along the port
side of #3 boiler, over the right hand superheater.
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| 20 |
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Looking to starboard at
the forward end of #3 boiler room, on the catwalk one level up from the
boiler room floor.
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| 21 |
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Looking aft in #3
boiler room, at the top of #3 boiler, and the front of the steam drum.
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| 22 |
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Looking aft and down on
to the top of the boiler's steam drum.
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| 23 |
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Looking aft and along
the top of the boiler's steam drum.
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| 24 |
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Looking down and to
starboard from the catwalk.
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Engine Room
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25
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A basic description of the engine operation provided by
Parks Canada on board HAIDA.
Description is courtesy of Parks Canada.
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26
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A cut-away diagram of a steam turbine provided in
HAIDA. I suspect this is just an indicative drawing of a turbine, and
is not necessarily representative of the turbines on board HAIDA. HAIDA
had two Parsons geared steam turbines, each with one low pressure and
one high pressure turbine (for a total of four turbines), and two
shafts.
Diagram is courtesy of Parks Canada.
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27
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Looking aft between the tops of the two turbines.
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28
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Port low pressure and astern turbine.
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29
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Forward end of the starboard low pressure and astern
turbine. According to Canadian
Warships since 1956 (pg. 87), the low pressure and astern
turbines were on the same turbine shaft in the Parsons turbine. Steam
entered the turbine near the centre of the rotor, and passed outwards
through two opposing sets of blades, starting with shorter and
progressing to larger blades as it went, before entering the condenser.
The astern turbine consisted of three rows of Curtis blading at one end
of the rotor that would turn the rotor in the opposite direction.
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30
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Starboard high pressure or cruise turbine.
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31
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Maneuvering valves, or throttles, at the forward end of
the starboard low pressure turbine.
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32
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Looking forward and to port from starboard side, just
forward of the starboard turbine. The starboard throttle control wheels
are in the centre of the photo, with one of the monitoring boards above
and to the right. This board included engine telegraphs for both
engines, as well as the boiler room monitoring panel. A green main feed
pump is just below and to the left of the monitoring panel.
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33
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Some dials on the forward end of the starboard high
pressure turbine.
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34
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Looking forward and to port in the engine room.
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35
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Looking forward along the starboard side of the engine
room, from just forward of the starboard high pressure turbine.
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36
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Turbo generator monitoring panel on the starboard side.
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37
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Looking forward and to starboard, along the starboard
side of the engine room.
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38
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Forward starboard corner of the engine room, with the
bulkhead separating the engine room and #3 boiler room to the left.
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39
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Looking forward and to port in the engine room, at the
same monitoring panel seen in Photo #32. This board included engine
telegraphs for both engines, as well as the
boiler room monitoring panel. A green main feed pump is just below and
to the left of the monitoring panel. |
40
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Looking aft and to
starboard at the throttle controls for the starboard turbines. The
throttle controls were connected to the maneuvering valves, which
regulated the steam supply to the various turbines. The big control
wheel regulated speed in the forward direction, while the smaller wheel
regulated astern speed. The second small wheel, mounted perpendicular
to the other two, regulated the stream supply to the high pressure, or
cruise, turbine.
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41
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Looking aft at the
forward end, and the maneuvering valves, of the port turbines.
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42
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Looking aft and to
starboard at the throttle controls for the port (nearest the camera)
and starboard (background) turbines. The Turbo Generator monitoring
panel is visible in the upper left, just right of the ventilator.
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43
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Looking below the port
turbine throttle control wheels, the grey item in the centre of the
photo is an extraction pump.
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44
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Looking aft and to port
along the port side of the port turbine. The maneuvering valve is
visible at the top centre of the photo.
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45
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Monitoring panels on
the port side of the engine room.
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46
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Looking to port in the
engine room. The grey cylindrical tank towards the top of the photo is
labelled "Drain Cooler".
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47
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An evaporator, labelled
"25 Ton Evaporator".
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48
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49
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Looking aft at the
"Bridge and Engine Room Monitoring Panel" located between the two
throttle control stations.
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50
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Looking aft and down
from the "Bridge and Engine Room Monitoring Panel", with green and grey
extraction pumps located to the left and right of the photo. |
51
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A close-up of the port
turbine throttle control wheels and valve indicators.
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52
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The status board,
presumably for use with a grease pencil, located at the forward end of
the port turbine.
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53
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"Shunt Regulator". From
Jerry Proc: "Item #53 may be better understood as a "manually operated
voltage regulator". The DC generator output voltages were monitored
with meters. If the voltage went high due to lesser load, it would be
adjusted downwards and vice versa. The voltage output was checked at
regular intervals. Manpower was cheap in those days. Now it would be
all be done automatically."
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54
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55
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Some sort of lighted
indicator found at the forward end of the turbines.
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56
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57
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Looking forward and to
starboard in the engine room, with the port turbine throttle control
wheels visible.
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| 58 |
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| 59 |
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"Emergency Shut-off
Valves".
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| 60 |
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"Pre-Heater for
Boilers".
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Gearing Room
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The starboard reduction
gearbox, looking to forward and to starboard. Each Parsons geared
turbine had two shafts, one each from the low and high pressure
turbines, and the shafts from each Parsons geared turbine were picked
up by its own reduction gearbox. The two shafts shown here are from the
low pressure turbine (nearest the camera) and the high pressure turbine
(background). The starboard gearbox transferred the power from the
engines to the starboard propeller shaft, which exits to the bottom
right of the photo (hidden by the catwalk). Each gearbox was self
regulating, in that it automatically adjusted the power generated by
the high and low pressure turbines to turn the shaft. The battery bank
for the diesel generator starter is just visible behind the gearbox.
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| 62 |
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Looking down on the aft
end of a gearbox. The output of the gearbox connects to the propeller
shaft, seen heading aft at the bottom right of the photo. At the head
of the propeller shaft is a brake, which can be clamped down on the
shaft to prevent the shaft (and therefore the gearbox and turbines)
from rotating when the ship is under tow or at anchor in a current.
This was used when the ship was towed, to prevent the gearbox from
being turned backwards - this could have caused the gearbox to seize
from lack of lubricating oil. At higher towing speeds than 6 knots, the
brake could not hold the shaft, and oil would have to be manually
circulated in the gearboxes.
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Lookg forward at the
bulkhead over the starboard gearbox.
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| 64 |
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Looking slightly aft
and to starboard at the auxiliary diesel generator (one of two 100
kilowatt units on board HAIDA) installed in the gearing room. The
other genset
was installed in the #1 Boiler Room. An electrical breaker compartment
is located above the generator.
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Looking to starboard.
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| 66 |
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Interior of the
electrical breaker compartment on the starboard side of the gearing
room.
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| 67 |
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The port reduction
gearbox.
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| 68 |
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Looking down and to
port between the two gearboxes.
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| 69 |
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Looking down and to
port between the two gearboxes. |
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The alternator attached
to the diesel engine generates electricity..
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| 71 |
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Looking to starboard
along the left side of the diesel generator. This generator has been
restored to working condition. According to Jerry Proc:
"In the Royal Canadian Navy, the generator was
affectionately known as the 'gennie' or the 'rockcrusher' and was only
used when the ship was
berthed and shore power was not available. Otherwise it was the 60kw DC
generators that ran the whole show when the ship was underway."
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| 72 |
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Monitoring panel for
the diesel generator.
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| 73 |
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Looking forward and
down on a cylinder located between the two gearboxes.
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Steering Gear
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| 74 |
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A schematic model of
HAIDA's
steering gear system, displayed on board HAIDA.
Schematic model is courtesy of Parks Canada.
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