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Gasifying boilers VIGAS
1. TECHNICAL DESCRIPTION
Hot-air 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.
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, 20 and 40 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 allows:
:
smooth and automatic control of forced draft fan according to required output and fuel,
to connect circulation pump,
to connect and to control boiler by space temperature regulator,
to connect discharge fan
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
Gases thermometer as a standard
Boiler has thermal fuse that ensures disconnection of forced draft fan if boiler is overheated.
