SAS UWG, Техническая документация для запуска

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7.3 BURNING
During normal exploitation of boiler burning process is based on periodic
refueling and raking a grate by moving the arm of mobile grate mechanism
(pos. 13). Single load of basic fuel is sufficient for 6 hours of boiler operation
at rated power. With lower capacity the period of slow burning (time gap
between refueling) may be elongated.
In the central heating installation heating requirement is changing along with
outdoor conditions, e.g. daytime and temperature. Temperature of water leaving
out the boiler depends also on thermal characteristic of building, e.g.
construction materials, in particular the insulation one.
Combustion intensity and the heat Power of the boiler is to be regulated by opening
and closing the air dosing flap (pos. 10), or mechanically, with the air draught
regulator (pos. 14), or manually, by adjusting the regulation screw, placed in the air
dosing flap. Combustion intensity regulation and heat capacity of a boiler should be
performed by opening and closing the air dosing flap.
7.4. CLEANING THE BOILER
In order to use fuel in the safe manner, and to get declared boiler’s power
and heat efficiency, keeping adequate cleanliness of combustion chamber and
convection channels is indispensable. As far as furnace chamber is concerned,
special attention should be paid when removing ash and slag from between grate
orifices and chamber’s walls. Such a cleaning should be exercised prior each
boiler’s fire up process, but not less than after 150÷260 of boiler’s continuous
work. Cleaning of convection channels, with volatile ashes residues, should be
performed every 3÷7 days, depending on quality of burned fuel. The cleaning
operation is done through washout holes indicated on the drawing (p. 11,12, pos.5).
It is also important, that whirling elements placed In the upper part of fumes
outlet channel (pos. 15) are regularly cleaned.
Once cleaning is finished, those holes should be sealed tightly. Cleaning the
chimney duct is not less important. In case of low temperatures in boiler in the
longer time, it is necessary to “heat” the boiler periodically (at least once a
week) burning-out in temperature 70÷80°C. This is important for extending the
durability of boiler.
7.5. END OF HEATING SEASON
Once heating season is finished, or in other cases of scheduled stops, wait the fuel to
be completely burned out. Once boiler is out and cooled down, remove from the
furnace all remains of burned fuel and apply cleaning and conservation of the
entire boiler. Pay special attention to lubricate inner partitions of combustion
chamber and all movable elements with oil. After the end of heating season, should
be protected also feeder drive mechanism with oil.
For the period of brake time, water should not be drained out of boiler and
installation. If boiler’s stopping took place in emergency conditions, glowing fuel
shell be removed into metal box and taken out of boiler room, or alternatively the
gloving fuel may be covered with sand.
NOTE: it is not allowed to put out the fire with water when in the boiler’s room!