J OIL-E-08 2008
The following procedures are designed to prevent the buildup of scale, silt or sludge in the bottom of
the boiler, water gauge and water column pipework. In addition to these procedures, the advice of a
water treatment specialist should be sought and followed.
Note:
for boilers fitted with Spirax High Integrity Level Controls see Appendix 'C'.
4.2 DAILy.
Some of the following procedures should be carried out as part of the normal operating routines of the
boiler, others are required to be done as part of the boiler maintenance programme.
All boiler operating routines and tests should be recorded and kept as a boiler history.
1.
Blowdown the Boiler.
2.
Blowdown the Water Column.
3.
Blowdown the Water Level Gauge.
4.3 WEEKLy
(including daily)
WARNINg
Ensure the fittings around the steam safety valve(s) are secure.
The safety valve will be very hot, do not operate the safety valve without protection.
4.
Ensure that the pipe from the safety valve outlet is not damaged and that it continues to a safe
blowdown point.
5.
The water level and safety cut-off controls must be tested under operating conditions by
interrupting the water feed supply.
To carry out this test, use the feed pump interrupt switch to isolate the feed water pump and lower
the water level in the boiler by evaporation. Lower the water level passed both the 1st. and
2nd. low water levels ( see section 3).
On completion, switch off (pump run) the pump interrupt switch and check that the water level is
restored to normal.
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4
4
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Страница 56: ...J OIL E 08 2008 A0 2 1 BOILER OIL 1 2 3 4 5 6 December 12 2004...
Страница 74: ...J OIL E 08 2008 E1 6 1 WATER COLUMN 6 60 December 2004 E1 6 1 12 2004 1 11 6 4 2 9 10 4 6 4 5 3 8 7...
Страница 76: ...J OIL E 08 2008 F1 4 1 WATER LEVEL GAUGE ASSEMBLY 6 60 350mm and 300mm Clifton December 2004...
Страница 84: ...J OIL E 08 2008 H1 1 1 PUMP FEED WATER 1 December 2004...
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