The gas-tube waste-heat boilers are the boilers in which flue gases pass through the evaporative surface tubes.
This boiler series is widely used in chemical and petrochemical industries due to the overall gas-tightness which allows to use these boilers in the following fields:
- cooling down of process and exit corrosive and non-corrosive gases;
- decontamination process of hydro-sulfuric gases;
- high-temperature conversion of hydrogen sulfide by combustion;
- weak nitric acid production lines;
- various procedures of elemental sulfur production.
When cooling supplied gases, the gas-tube boilers generate saturated or superheated steam, depending on the process requirements of the plant.
The given boiler series does not require special lining and is characterized by high gas-tightness, easy maintenance, reduced requirements to feedwater and environmental friendly production.
The modular design facilitates installation and improves maintainability.
The waste-heat boilers are fitted with platforms, ladders for maintenance and repair, provided with required shut-off and control valves, safety valves, fittings, supervisory instruments.
Gas-tube waste-heat boilers of KG series are designed to recover flue gas heat from process lines to generate low or medium pressure superheated or saturated steam. They are installed both indoors and outdoors. The operation of the boiler is possible when the load changes by 70-110 from rated.
Boilers of KG series are with natural circulation, horizontal layout. The exhaust gas moves through the pipes, which are located in the water part of the evaporating drum.
Depending on the working conditions and customer requirements, they can be completed with superheater, water economizer, additional evaporative surface, and external separation drum.
The boilers are equipped with platforms, ladders for maintenance and repairing the boiler, provided with required valves, fittings, steam and water sampling devices, and control instrumentation.
The boilers are delivered as transportable assembly units.
