1-2 Steam Generation System
(1) From Water Feeding to Steam Generation
1) Water Feeding
Raw water at the pressure of 1.5 - 5 kg/cm2 is flowing to softener[2] for making soft water. The soft water is flowing
to the feed water tank[3]. The water level of the feed water tank is maintained constantly by the ball tap. When the
power switch “ON”, the feed water pump[6] is operated(the chemical injection pump[10] is also operated for
injecting the tube cleaning detergent) and the feeding water from the feed water tank is pressurized and forwarded to
the evaporating tube by the feed water pump[6] through the feed water strainer for filtration of foreign substance,
check valves[7], [8] in feed water line and lower header.
2) Oil Feeding
The oil which is removed the foreign substance through the oil strainer[29], [30], [53] is pressurized up to the
specified pressure(15 Kg/cm2 for light oil, 20 Kg/cm2) by the oil pump[32] ,and is sprayed through nozzle. When
using the “B” heavy oil or “C” heavy oil, the oil is sprayed after heating by the oil heater[31] due to its high viscosity
at the ambient temperature.
3) Ignition
The lighting bar makes spark by the raised voltage(from 220V to 10,000 - 13,000V: 10,000V for light oil, 13,000 for
heavy oil) from ignition transformer and ignites the flame on the sprayed oil from nozzle.
4) Steam Generation
The water in the tube is heated by the combustion of burner and evaporated on the evaporation surface. The saturated
steam including moisture is forwarded to the steam separator through upper header. This steam including moisture is
separated into steam and moisture by the steam separator[12] ,and the dry steam only is supplying for load through
the valve[14].
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