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Steam boiler / fire tube / heat recovery
Waste gas heat recovery boilers downstream cogeneration and industrial plants.This kind of boiler employs the heat of exhaust gases to produce steam.
Traditional gas heat recovery boilers do not have a furnace, as the water inside them is not heated up with a burner, but just with the heat of fumes
conveyed in them.
The fields of applications are:
- INDUSTRIAL PROCESSES
- ENERGY PRODUCTION PLANT
- COGENERATION
- BIOMASS PLANT
An big innovation is the introduction of a waste heat recovery boiler able to combine the generation of steam by combustion with heat recovery from hot fumes from external sources. This free source is primary, while combustion can be used as a backup or provide the power required if the recovery fumes are not enough to meet the systems request for steam. Combustion-based operation features three flue-gas pass with passing flame and wet bottom. The boilers body is made with flanged tube plates that replace the more traditional corner welds to ensure top safety levels and reduce areas with thermal stress. The recovery section is entirely
separated from the combustion section, though it is immersed in the same boiler water. The front doors are secured to the boilers body with double jointed hinges, which are used to open and inspect the equipment with no need to remove the boiler.
ECONOMIZER
No need to mention again that such as for the traditional boiler, it is possible to increase the efficiency up to 5% with the installation of an economizer, to preheat the feed-water with the fumes.