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AGF 10.0

Liquid nebulizer with binary nozzle and cyclone (cut-off: 10 µm) as per VDI 3491-6

    Generation of high mass flows of up to approx. 25 g/h
    Exact adjustment of the operating parameters
    Number concentration (CN) can be varied by the factor 10
    Particle size distribution remains virtually constant, if CN is modified
    Number distribution maximum is within the MPPS range
    Virtually no power losses
    Optimal concentration, no coagulation losses
    Resistant to numerous acids, bases, and solvents
    Robust design, stainless steel housing
    Easy to operate
    Long dosing time

Description

The AGF 10.0 is an aerosol generator for the atomization of liquids and latex suspensions with a constant particle rate and defined particle spectrum.

Fig. 1: AGF 10.0

The AGF 10.0 system comprises an adjustable binary nozzle for adjustment of the desired mass flow and a cyclone with a cut-off of 10 µm. The figure below presents a schematic arrangement of the generator components:

Fig. 2: Schematic diagram of the aerosol generator

Startup

The liquid to be dispersed is filled in the reservoir and the AGF 2.0 is connected to the compressed air connection. A manometer enables the mass flow of the liquid to be continuously adjusted using the primary pressure on the nozzle. The mist of droplets generated by the nozzle flows tangentially into a cyclone. Large particles are separated here by centrifugal force and drip back into the reservoir. The remaining droplets leave the cyclone via the so-called “immersion tube”. The size spectrum of these droplets is determined on the one hand by the primary droplet spectrum generated by the nozzle, but especially by the separation characteristics of the cyclone on the other hand.

The separation size is able to be calculated: daerodyn.max = 10 µm, i.e. regardless of the liquid to be atomized, the max. particle size is daerodyn ≈ 10 µm.

Table 1: Overview of the AGF and UGF systems

Datasheet

Volume flow

14 – 35 l/min

Dimensions

240 • 385 mm ( Ø • L)

Weight

approx. 4 kg

Particle material

DEHS, DOP, Emery 3004, paraffin oil, other non-resinous oils

Dosing time

> 24 h

Mass flow (particles)

< 25 g/h (DEHS)

Compressed air connection

Quick coupling

Aerosol outlet connection

Øinside = 20 mm, Øoutside = 30 mm

Mean particle diameter (number)

0.5 µm

Biggest particle diameter

10 µm

Filling quantity

300 ml

Benefits

    Generation of high mass flows of up to approx. 25 g/h
    Exact adjustment of the operating parameters
    Number concentration (CN) can be varied by the factor 10
    Particle size distribution remains virtually constant, if CN is modified
    Number distribution maximum is within the MPPS range
    Virtually no power losses
    Optimal concentration, no coagulation losses
    Resistant to numerous acids, bases, and solvents
    Robust design, stainless steel housing
    Easy to operate
    Long dosing time

Applications

    Clean room technology
      -   Acceptance tests and leak tests as per ISO 14644 and VDI 2083
      -   Leak tests, fit testing
      -   Recovery tests
    Filter testing, quality control
      -   Filter cartridges
      -   Car interior filters
      -   Filter media, particulate air filters, HEPA/ULPA filters
      -   Compressed air filters
    Tracer particles
      -   Optical flow measurement procedures with positive pressure values of up to 10 bar (model version AGF 10.0 D)
      -   Inhalation experiments
      -   LDV
    Calibration of counting particle measurement methods
      -   Nebulization of latex suspensions < 5 µm
    Smoke detector tests