OO, OG, OGO

Type OO, OG and OGO steam boilers, based on gas or oil fuels are, natural-circulation boiler drum units. These are self-supporting radiant boiler units with an economizer that can either act as a standalone unit or be integrated as an additional flue gas pass.

SEFAKO provides two design versions:

lateral flue boilers with burners installed on either side wall
three-pass boilers with burners installed on the front wall

Each boiler includes a complete instrumentation package for correct operation control, as well as heating surface cleaning systems.

For environmental protection compliance, we provide the following optional plants:

SNCR

Each standard boiler unit comes with control and monitoring systems. The control and monitoring rack features a recorder unit to log the basic operating parameters. The control and monitoring rack enables control over specific drive units of the boiler's systems. All basic operating parameters are saved by the HMI visualisation industrial PC and can be reviewed in any of the stored time intervals.

Table 1: Example parameters of the boiler series

	OG20	OG30	OG40	OG50	OO65
Design rating, t/h	20	30	40	45	65
Boiler water inlet temp., °C	105	105	105 115	105 115	105
Boiler steam outlet temp., °C	400 450	400 450	450 485	450 485	250
Boiler steam outlet pressure, MPa	4	4	4 6	4 6	1.2
Boiler flue gas exhaust temp., °C	< 160
Gross design efficiency (*), %	> 94
Fuel demand (*), m³/h	1620	2100	3400	4250	4000

* At the design rating and when using guarantee-compliant fuel (GZ50, light furnace oil)

The parameters of the boiler

Name	Value
Fuel	Gas and oil
Construction	Water tube
Combustion	Burner
Energy	Steam