Steam boilers

The system

The  use of combined heat and power systems in the commercial or industrial sectors can provide a viable alternative. A gas turbine or a combined heat and power plant generates the electrical power – a downstream waste heat boiler system uses the hot flue gases from the upstream combustion processes for  the efficient generation of thermal energy or process heat.

Customer benefit

The  hot water or  steam generators with waste heat recovery are conventionally fired 3-pass boilers with an  additional integrated fourth smoke tube pass. The  hot flue gases from the upstream processes are passed through this to support the generation of steam or  hot water. Additional peak load boilers, which are necessary with pure waste heat boilers, can usually be dispensed with due to the self-firing. Investment costs, space requirement and expenditure on  equipment are reduced enormously.

 Example of hydraulic in e– g    ration of a CHP plant and a 4-pass steam boiler system

For a smaller to medium steam demand. Available in the output ranges from 175 to 3,200 kg/h.

 Technical Data

Type	UNIVERSAL U-ND	UNIVERSAL U-HD
Heat transfer medium	Low-pressure saturated steam	High-pressure saturated steam
Design	Flame tube/smoke tube technology	Flame tube/smoke tube technology
Output	175 to 3,200 kg/h	175 to 1,250 kg/h
Safety pressure	up to 0.5 bar	up to 16 bar
Max. temperature	to 110 °C	to 204 °C
Fuel	Oil, gas	Oil, gas

For a smaller to medium steam demand. Available in the output ranges from 200 to 2,000 kg/h.

  Technical Data

Type	UNIVERSAL U-MB
Heat transfer medium	High-pressure saturated steam
Design	Three-pass flame tube/smoke tube technology
Output	200 to 2,000 kg/h
Safety pressure	up to 16 bar
Max. temperature	to 204 °C
Fuel	Oil, gas

For a medium to high steam or heat demand. Available in the output ranges from 1,250 to 28,000 kg/h.

 Techincal Data

Type	UNIVERSAL UL-S	UNIVERSAL UL-SX
Heat transfer medium	High-pressure saturated steam	High-pressure superheated steam
Design	Three-pass single-flame tube/smoke tube technology	Three-pass single-flame tube/smoke tube technology
Output	1,250 to 28,000 kg/h	2,600 to 28,000 kg/h
Safety pressure	up to 30 bar	up to 30 bar
Max. temperature	to 235 °C	to 300 °C
Fuel	Oil, gas	Oil, gas

For a very large steam or heat demand. Available in the output ranges from 18,000 to 55,000 kg/h.

Technical Data

Type	UNIVERSAL ZFR	UNIVERSAL ZFR-X
Heat transfer medium	High-pressure saturated steam	High-pressure superheated steam
Design	Three-pass double-flame tube/smoke tube technology	Three-pass double-flame tube/smoke tube technology
Output	18,000 to 55,000 kg/h	18,000 to 55,000 kg/h
Safety pressure	up to 30 bar	up to 30 bar
Max. temperature	to 235 °C	to 300 °C
Fuel	Oil, gas	Oil, gas