Product thermal capacity : 1-20 t/h Working pressure : 0.7-2 Mpa Available fuel : Nature gas, coke oven gas, biogas, methanol, liquid propane gas, diesel, heavy oil, light oil, crude oil, etc. Available industries : Heat supplying, chemical, food, textile, printing and dyeing, cigarettes and tobacco, fodder, pharmacy, building materials, brewery, rubber, hospital etc. Introduction:
composite boiler is a boiler shell type 3 passes wetback oil/gas fired boiler. After fuel is being atomized by burner, flame is full of the wave furnace and transfer heat via furnace wall, this is 1st pass; the high temperature smoke is collected in reversal chamber and then enters 2nd pass which is grooved tubes bundle area; after heat convection, air temperature gradually falls and goes to front smoke box and turn to 3rd pass, which is smooth tubes bundle area, and then enters chimney passing back smoke box and exhausted to the atmosphere.
Technical advantages Digitized manufacture
The key part such as material cutting, rolling, drilling are proceeded by advanced CNC machining process to reduce the assemble stress and extend boiler working lifetime.
The front and back smoke chamber plates are cut by CNC plasma cutting machine and looks tidy and beautiful.
Easy operation and maintenance
Fully automatically operating, with automatically adjustment and protection of burning, water level, temperature and steam pressure.
Longer working life
Smoke tube and tube sheet connection is expanded first to eliminate the gap between them, then adopt automatic argon arc welding to relief the stress and expand boilers working life.
Longitudinal and girth joint adopt advanced automatic submerged-arc welding for good welding quality. All longitudinal and girth joint will have 100% radiographic inspection.
Fin tube us ND steel or stainless-steel material which avoid low temperature corrosion.
Inspection procedure point is set up to guarantee the sequence of expanding and welding, avoid cracking of the tube sheet holes.
Less fuel consumption
High quality aluminum silicate fiber is used with fire clay insulation, to control the boiler body temperature below 45℃ to control heat lost.
Sufficient steam storage room and heating area makes boiler to generate high quality steam and high thermal power.
Condenser is added to reuse the waste heat of the exhausted smoke to increase feeding water’s temperature and reduce emission temperature, which can increase the thermal efficiency above 98% and save operating cost.
Composite boilers are used with Diesel engines, since if the exhaust gas from the engine is low in temperature steam can be maintained by means of an oil fired furnace. Recovery of some of this heat loss to the extent of 30 to 50 percent is possible by means of an exhaust gas boiler or water heater. The amount of heat recovered from the
Greens Power Limited provides a range of Composite Boilers for a variety of applications, incorporating a number of well-known and long established products. Spanner Composite Boiler. The Spanner Composite Boiler range combines the features of the side fired, down fired and horizontal oil fired boilers with the Spanner Exhaust Gas Boiler.
2019-5-25 · Especially on smaller vessels, a composite boiler can be an economical solution that saves space and reduces pumping needs. Available in single-inlet or multiple-inlet configurations, the Aalborg OC-TCi is a plug-and-play solution that can be fired with either fuel or exhaust gas.
The innovative SAACKE vertical composite boiler also covers variable demands for steam on almost all ship types, and saves on the need for an entire auxiliary boiler plant. The plant achieves a maximum fired steam output of up to 18 t/h. A good control range is achieved using a rotary cup burner. The boiler control is fully automatic.
2019-5-25 · Fountom composite boiler is a high-performance welded boiler that suits fewer steam demanded vessel, it is safe and less fuel consumptive. The heating surface of exhaust gas section consists of flat tubes or threaded tubes, for oil fired section, the evaporation capacity is 0.2t/h-5.0t/h.
Wärtsilä is a global leader in smart technologies and complete lifecycle solutions for the marine and energy markets. By emphasising sustainable innovation, total efficiency and data analytics, Wärtsilä maximises the environmental and economic performance
On the burner side, 80% and more boiler efficiency is secured by the newly developed boiler proper, and gas flow speedup promotes the heating improvement. Soot blower is arranged on the Exh. gas side water tubes, and then good efficiency operation is realized; Compact size The newly developed boiler proper shortened the boiler height.
2019-5-19 · Composite boiler. By Lars Josefsson. Composite boilers are combination of oil-fired boilers and exhaust gas economizers. When the diesel engine is at full load the fuel oil burner only starts if the steam demand exceeds the steam production achieved from the diesel engines exhaust gases.