Fröling SPS 4000, Руководство по обслуживанию

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Duration of infeed reduction when max. temp. under grate
exceeded
Time the boiler delivers minimum output to cool the grate
Duration till shutdown when max. temp. under grate
exceeded
Time to observe undergrate temperature after it was too
high
5.3.12 Ash removal
System menu Boiler Ash removal
Heat exchanger ash screw interval
Cycle time after which the ash screw on the heat
exchanger is activated.
Heat exchanger ash screw runtime
Runtime of the ash screw on the heat exchanger on
completion of a cycle.
Delay time error ash screw
The boiler only shuts down when the an error is detected
at the ash screw during this time.
Ash container fill level warning delay time
If the ash container is full, the boiler is switched off once
the set delay time has elapsed.
Ash screw 2 run-on
Run-on of the second ash screw compared to the first ash
screw.
Boiler runtime until ash slide valve is active
Runtime of the boiler until the ash slide valve is activated.
Ash slide valve ash removal run-on
Delay time until the ash slide valve closes after the
combustion chamber ash screw is stopped.
Max. pressure hydraulic unit ash slide valve
Specifies the upper limit value for the hydraulic pressure in
the unit. If the pressure is exceeded, the control is stopped
and the control direction is reversed. If the pressure falls
below 30 bar again, then the control is released again.
Number of overpressure activations before an ash slide
valve warning is issued
A warning is issued after a set number of overpressure
activations.
Delay overpressure error ash slide valve
Time that the fault must be active until an error is
triggered. Previously, only a warning is displayed.
Multicyclone rotary valve interval
Cycle time after which the rotary valve on the multicyclone
is activated.
Multicyclone rotary valve runtime
Runtime of the rotary valve on the multicyclone on
completion of a cycle.
Multicyclone rotary valve run-on when OFF
The rotary valve on the multicyclone is activated at this
time if the boiler has been stopped to remove the last of
the ash from the multicyclone.
Multicyclone ash screw run-on
The time the first ash screw runs on longer than the
combustion chamber ash screw so that it is safely
emptied.
Multicyclone ash screw 2 run-on
The time the second ash screw runs on longer than the
first ash screw so that it is safely emptied.
Multicyclone ash screw 3 run-on
The time the third ash screw runs on longer than the
second ash screw so that it is safely emptied.
Max. time external demand ash removal flue gas path
Maximum activation of ash removal according to external
demand. The ash removal is terminated even if the
demand remains for a longer time.
Maximum permissible temperature on ash screw channel
If the temperature sensor on the combustion chamber ash
screw exceeds the set temperature, the feed rate is
reduced to decrease the temperature and prevent the
boiler from being overloaded.
5 Menus and parameters
Boiler
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