Laval-Flachstrahldüse (für DeNOx-Anwendungen)
Sprühbild Laval-Flachstrahldüse (für DeNOx-Anwendungen)

Laval Flat Fan Nozzle Lances

Special twin-fluid nozzles for DeNOx applications.

The Lechler Laval flat fan nozzle is a special nozzle designed to match the specific requirements of the SCR and SNCR processes. The air/liquid mixture exits via three outlet holes creating a wide and flat spray pattern with an even better area coverage. The droplet spectrum and the impulse of the droplets can be adjusted by changing the air/liquid ratio.

Technical data (pdf, 252 KB)

Properties

Wide and flat spray
Wide and flat spray Spray angle 60°
Turn-down ratio
Turn-down ratio of over 10:1
Typical pressure range
Typical pressure range Liquid 14.5-73 psi, g; Atomizing air 14.5-73 psi, g
Spray alignment possible
Spray alignment possible
Adjustment of the droplet spectrum
Adjustment of the droplet spectrum by changing the air/fluid ratio

For optimum process results in denitrification, the droplet size and velocity are of decisive importance. We help you to select the appropriate nozzle and a suitable control concept in order to achieve the best possible distribution of the reducing agent and the optimum penetration depth of the droplets into the flue gas stream.

Use

  • Gas cooling in gasbearing pipes (ducts) and medium-sized and small gas cooling towers
  • Injection of solids-laden water
  • Introduction of lime water in the desulfurization process
  • Injection of aqueous ammonia or urea solution for the DeNOx process (SNCR/SCR)
  • Chemical process engineering (spray dryers etc.)

Application areas

SNCR process

Denitrification DeNox SNCR

SCR process

Denitrification DeNox SNCR

Functionality of Laval Flat Fan Nozzle Lances

Our nozzle lances are project-related  designs and are manufactured taking into account the local and process-engineering conditions as well as the regulations for DeNOx applications. Furthermore, customer-specific versions with options such as protection tube and barrier air connection as well as shifting devices for adjusting the insertion length can be realized.

Contact

Lechler, Inc. Phone (800) 777-2926 Fax (630) 377-6657 info(at)lechlerusa.com