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Fuji Electric's expertise supports professionals of the thermal energy industry during each phase of the energy production in order to
reduce costs, increase yields, extend the life of installations, reduce air pollution
A boiler is a closed vessel in which water or other fluid is heated or vaporized to supply steam or hot water to other equipment or facilities.
Fire, high-temperature gas, or electricity is used as a heat source of boilers.
Water-tube boiler
Two drums are arranged upper and lower, connected each other by a number of water tubes, through which water is circulated.
The tubes are heated by combustion gas to generate steam.
Feedwater control (FWC): keeps the water level in the drum constant.
Automatic combustion control (ACC): controls the flow rates of both fuel and air to improve combustion efficiency while ensuring safety and preventing pollution,
and to keep a constant steam pressure
Stack allow emission of flue gas generated through fuel combustion.
Flue gas is blown an induced draft fan toward stack. Then it is emitted from stack to be diluted into the atmosphere. Height of stack should be determined after considering the effect of weather, geography and neighbouring construction and spread of regulated materials as well.
In this regard air pollution monitoring equipment is indispensable.
Instrumentation for stack and utilities :
