Lechler full cone, hollow cone and flat jet nozzles meet the requirements that modern technology in exhaust air cleaning demands on nozzles: high-alloy and chemically resistant materials as well as liquid distribution and circular distribution tailored to the application and the appropriate droplet spectrum. The constructional designs are classified according to
Uniform liquid distribution over a circular surface.
Application: Absorber preferably in the edge area
Uniform annular distribution of finer droplets than comparable full-cone nozzles and larger free cross-sections.
Application: Absorber preferably in the middle area
Uniform liquid distribution over a circular surface.
Application: Absorber
Spiral fluid distribution.
Application: Absorber, emergency injection
Flat jet nozzle.
Application: Emptying, cleaning flue gas inlet duct
Bi-directional double hollow-cone nozzle.
Application: Absorber, increasing the active spraying height, pressure loss reducing
Closed full jet.
Application: emptying, impulse nozzles
Due to their different efficiency-related design methods, nozzles for flue gas desulphurization are differentiated according to the following criteria:
Spray pattern
The most frequently used nozzles in Air Quality Control Systems (AQCS) are A hollow-cone and full-cone nozzles. Hollow-cone nozzles produce a circular load; full-cone nozzles, on the other hand, distribute liquid over a circular area. Helix nozzles occupy a special position.
Feed
Hollow-cone and full-cone nozzles with tangential inlet flow do not have any internals. The hydrodynamic design results in a self-cleaning effect and thus trouble-free operation of the nozzles. However, axial full-cone nozzles of the various series also have the largest possible passage cross-sections due to a specific swirling design.
Connecting type
An important factor in nozzle assembly is the time required for installation and removal, i.e. the downtime of the system. Lechler therefore offers different mounting variants tailored to customers’ requirements, which help to save time and money. Lechler offers various fastening solutions according to the supply lines of customers system.