Technical data
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Schematic dimensions of the ORLAN boiler
3. BOILER TECHNICAL SPECIFICATION
ORLAN boilers are designed to be used as a source of heat in central heating
system either in gravitation or in forced (pump) system. The boilers are adapted for
burning any kind of waste wood, ranging from sawdust to chunks of wood. The boiler
casing is made of welded metal sheets that form a water jacket. The internal boiler
walls, which are exposed to the flue gas, are made of metal sheets that are 6 mm
thick, whereas the remaining walls are only 4 mm thick. The boiler convection
surface is made of vertical smoke tubes measuring 57 x 4 mm where the flue gas is
transported to the chimney via the chimney flue. The external casing consists of
metal sheet panels that are 0,8 mm thick. The thermal insulation is composed of
glass wool of the NOBASIL type that is 20 mm thick.
All boilers nozzles are made of steel tubes. The chimney flue is made of
4mm thick steel tube. The chimney flap is produced of the high constructional sheet.
The accurate chimney flap adhesion to the combustion duct assures the
combustion chamber tightness.
The fan is placed in front of the boiler. Fan casing is made of 0,8 mm metal
sheet. Boiler control panel is located on the boiler's upper cover.
Tightness assertion
The boiler tightness is very important especially if we are thinking of boiler's door,
heat exchanger lid and chimney flap. If one of these is leaky the smoke can come
out of the boiler room but first of all it may be the reason of uncontrolled burning into
the boiler what may also overheat the boiler. That's why the insulation cord should
be lubricated (every second week) with graphitic oil (or any other machine oil). The
cord fibre is more flexible and adheres better to the surface.
After some time of boiler working (e.g. one season) the cord may be pressed. That
is why a special boiler door regulation is foreseen.
Please remember to clean up the chimney flap!
All threaded elements shall be lubricated with some lubricant before
each bolt unscrewing. The boiler hinges and locks should be also
lubricated periodically.
Most favourable temperature assertion
Water temperature is important due to boiler capacity. Outer water temperature
should be around 75ºC then the boiler works most favourable.
In the heat demand period, temperature decrease of return water from
installation is sometimes possible. If return water temperature is lower than feeding
water temperature more than 20ºC, there is a possibility of partial gasification
chamber pre-cooling, and consequently decreasing of gasification efficiency
Conservation
Door hinge regulation
1.. take off the door
2.. release the nut
3.. turn lower hinge part by 360°
4.. turn on the nut
!
ATTENTION!
Door regulation shall be done parallel
on lower and upper hinge.
Cleaning elements