PB2 - Brochure

The details make the boilerThe boilers vertical flue gas tubes are fitted with an automatic cleaning system that guarantees a consistently high boiler efficiency is maintained without the need for frequent shut downs or manual cleaning. This redu-ces both labour- and alternative fuel costs. Feature descriptionAn automatic ash discharge system is included in the boiler’s scope of delivery — this helps in reducing the human effort during the firing season even more. In order to augment the flexibility we offer two different control systems — one more basic, and another more comprehensive that controls the whole boiler process. The hydraulic, stepped grate automatically moves the fuel through the combustion chamber and discharges the ash in the internal ash auger that’s included in the standard delivery, another factor that minimises the manual efforts during the firing season. By keeping the fuel bed moving, the creation of cinder is kept at a low level. The boiler is controlled with a com-puterised system whose main task is to adjust the combustion according to the current load in order to maintain a constant water temperature. The computer receives a signal from the flow water temperature sensor and then regu-lates the negative pressure of the fur-nace, the grate movements and the fuel infeed. The combustion air will then be regulated by the furnace’s negative pressure. This is a simple and reliable method that also provides a constant regulation across the output range. Osby Parca PB2Biomass boiler 1.25–5 MWThe Professional’s Choice Since 1935For more information about Osby Parca’s line of products and contact information — www.osbyparca.comMADE IN SWEDEN Respected WorldwideOur flagship for firing dry fuels can be delivered in single or multiple format packaged plant rooms Control systemOur control systems use ABB’s powerful Fre-elance software and are programmed by our design department, therefore we can offer cus-tomised solutions that can handle just the boiler functions, the entire heating plant, or anything in between. It is a truly adaptive system that can also be operated and monitored remotely. Our control systems’ high accuracy results in low emissions, irrespective of the boiler load. On the display the controlled components are shown with clear, graphic images. Maintenance and cleaningThe PB2 is designed to require the minimum of maintenance: • The grate is built as one piece and is readily removed; • the controls has a comprehensive alarm system with direct, clear messaging; • the automatic cleaning system minimises manual cleaning during the heating season; • the result of the above is a boiler operating at peak efficiency constantly. Automatic cleaningThe boiler’s automatic turbulator cleaning system maintains the tubes clean and therefore the degree of efficiency high. Automatc ash handlingThe boiler is delivered with one ash auger and one dust auger. The control system manages the automatic discharge of ash and dust.Air controlThe air distribution is controlled with two dampers, one for primary air, and one for secondary air. A frequency controlled flue gas fan controls the amount of air that enters the boiler.A maintenance space of 1300mm must be available over the top of the convection partDimensions Output L L1 B B1* H H1 H2 H3 A1** A2 A3** A4 Net weight Water vol.1250 kW 4006 1150 1930 2610 2445 2045 400 400 500 1100 500 1250 13 ton 6.0 m31500 kW 4150 1150 1930 2610 3100 2600 500 400 500 1100 500 1250 14 ton 7.0 m32000 kW 5210 1150 1930 2610 3100 2600 500 400 500 1500 500 1400 18 ton 8.0 m33000 kW 5920 1150 2440 3120 4090 3590 500 400 500 1500 500 1400 26 ton 13.5 m34000 kW 6920 1150 2440 3120 4090 3590 500 400 500 1500 500 1400 27 ton 13.5 m35000 kW 7750 1150 2440 3120 5200 3590 500 400 500 1500 500 1400 35 ton 17.0 m3* With internal ash augers for external ash handling the width varies ** Minimal measurement. A higher value is recommended (1500-2000 mm)Expected technical values 100% Load 50% Load 25% LoadO2-content 7.6% tg 8.6 % tg 9.6 %tgCO-content PPM 200 300 400CO-content mg/MJ 84 168 294NOx-content mg/MJ 80 80 80Dust content (13% CO2 mg/Mm3) 100 100 100Flue gas temperature <160°CBoiler efficiency 94%Design data Output 1.25–5 MWMin. inlet temperature 65-80°CDesign temperature 140°CDesign pressure 6 or 10 barGas resistance Ca 1500 PaBränslefukthalt Max. 35 %Lägsta vattenflöde (m3/h) Effekt (i kW)/464LTechnical data on the PB2Technical data Output Gas-resistance Connection Flue gas fan1250 kW 1200 Pa DN 150 7.5 kW1500 kW 1500 Pa DN 150 11.0 kW2000 kW 1500 Pa DN 150 11.0 kW3000 kW 1500 Pa DN 150 18.5 kW4000 kW 1500 Pa DN 150 20 kW5000 kW 1500 Pa DN 150 37 kWPressure drop, kPa2014-08-18. All rights reserved. Information is subject to change without notice.Tel. +46 479 177 00 Fax +46 479 177 25sales@osbyparca.sewww.osbyparca.seBox 93, 283 22 Osby