General info
About Biomass boilers
Biofuels offer challenges in order to reach high efficiency and availability. Biofuel normally tends to create gas-side fouling in all parts of the boiler.
About cleaning
Benefits of our soot cleaning systems for Biomass boilers
Reduced steam consumption for steam sootblowing. Saved sootblower steam is used for increasing heat or electricity production.
Lower fuel consumption. Cleaner tubes mean increased heat transfer and efficiency.
Lower and more stable differential pressure. Infrasound cleaning reaches areas that are not accessible to conventional soot cleaning systems. This means higher availability of the boiler and lower load on ID/FD fans.
Fewer and shorter outages for manual cleaning. With improved cleaning effect you can obtain higher availability and fewer man-hours spent.
Increased lifetime of heat exchangers. By reducing or eliminating steam sootblowing or shot cleaning, the lifetime of heat exchangers is prolonged. Infrasound cleaning is a non-abrasive cleaning method that does not wear on heat exchange surfaces or catalyst elements and does not contribute to corrosion or erosion. Using our optimized steam sootblowing also reduces wear since steam is supplied only half the time.
References on Biomass boilers
Perstorp Fjärrvärme P6, Perstorp Sweden
At Perstorp Fjärrvärme, Steam soot blowing was previously used six times per day in the economizer and there were also two unplanned stops per year for manual cleaning. The unplanned stops are costly and are preceded by an increased differential pressure which increases the flue gas velocity, leading to increased erosion and uneven flue gas distribution.
Versowood, Vierumäki Finland
Previously the boiler at versowood was stopped for manual cleaning every second month or six times per year due to that tube inlets were clogged by soot particles, leading to overstraining of the fan and increase of the flue gas outlet temperature from 150°C to 180°C.
Mölndal Energi Sweden
A case study and results from our HISS installation on a biomass boiler at Riskullaverket. Before HISS was installed, soot blowing was employed twice per day and each soot blowing cycle meant 1 MW decrease on turbine load for 2.5 h (duration of one soot blowing cycle).
Övik Energi, Bjästa Sweden
A case study and results from our infrasound cleaning installation on a biomass boiler at Övik Energi. From 2008-2013 the 3 MW boiler at Övik Energi was operated using 100 % pine oil pitch (tallbeckolja in Swedish). No automatic soot cleaning method was used and the boiler had to opened for manual cleaning of the smoke tubes once a month.
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