With the new generation of RS II-3 nozzles, the droplet size D32 at 35 bar,g could be reduced to 85-130 µm over the operating points of the complete series. Several case studies for gas cooling towers have shown that the required evaporation distance can be reduced by up to 50% compared to conventional spillback nozzles.
Spillback nozzles are single-fluid nozzles that atomize the liquid as a hollow cone. Compared to regular single fluid nozzles, the water is fed to the nozzle with a constant feed pressure (e.g. 35 bar), independent of the atomized flow rate.
The amount of liquid injected is adjusted via a control valve in the spillback line, whereby part of the flow is taken from the inlet flow rate and returned to the tank. The maximum atomized flow rate is achieved with the control valve closed. Uniform and fine liquid atomization is achieved across the entire control range.
Our nozzle lances are customer-specific designs, which are manufactured on a project-related basis taking into account the local and process-related conditions. This ensures that the spray is optimally placed and aligned in the flue gas duct.
The nozzles themselves have a low-maintenance design and can be quickly cleaned or exchanged with minimal effort.
Lechler nozzle lances are available with many options, including but not limited to: