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Gasifying boilers VIGAS
1. TECHNICAL DESCRIPTION
Thermal boilers VIGAS are designed for combustion of dry wood material, starting from
sawdust up to logs in the length according to the dimensions of gasification chamber,
maximum 20 cm. Sawdust, chippings, splinters and cuttings must be burn together with logs.
Thermal boiler, VIGAS UD 29 is designed for burning brown coal. It is also possible to use dry
wooden material as a substitute fuel.
Boilers are welded from 4- 6 mm steel sheets. Inner boiler sheets that have contact with
boiler waste gases are 6 mm thick, others are made of 4 mm sheet. Heat exchanger is
welded from steel pipes, 57x 5 mm. Exterior boiler shell is made of 0.8 mm sheet. Thermal
insulation of the boiler is made of insulation material, NOBASIL, 20 and 50 mm thick. Boiler
waste gases go away through steel neck to chimney.
Inner boiler space consists of gasification chamber, where fuel is dried and gasified. Then
created gas goes through fireproof /concrete/ nozzle into combustion chamber, where it
burns with the help of secondary air. Boiler waste gasses are intensively cooled in
exchanger. Wood that is not burnt must be removed from combustion chamber. The boiler has a
lighting up damper that is controled by operating rod at the front part of boiler.
In order the boiler complies with the requirements for non-demanding operation, it is equipped
with AK 3000 control unit that is situated in the upper part of boiler. The used system of control
allows very effective combustion of various kinds of fuel. AK 3000 control with grpahical display,
in basic configuration allows:
to control temperature of heated water in range 60 ÷ 85 °C
smooth and automatic control of forced draft fan according to required output and
to connect discharge fan
to connect circulation pump
to connect gases thermometer
to connect and to control boiler by space temperature regulator
to connect extended regulation (EXPANDER) via AK BUS
to connect module with Ethernet interface and SD-card for data saving and concsequtive
evaluation via PC
grpahical scheme indication of hydraulic connection as requested
real time set
In configuration VIGAS
Lambda Control
also allows :
Utilizes informations from lambda sensor of oxygen overflow in gases, to control the
chimney flap of primary and secundary air.
Gases thermometer as a standard
Boilers are equiped with thermal fuse that ensures disconnection of forced draft fan if boiler
is overheated above 100
0
C and safety exchanger against overheating according to the
standard, STN EN 303/5. Its recommended, by producer, to buy a release valve Honeywell TS
130 ¾” for safety exchanger against over heating.
Summary of Contents for VIGAS 100
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