Liquid nebulizer with binary nozzle and cyclone (dp_max = 2 µm) as per VDI 3491-1 and -2
Benefits
Description
Application
Benefits
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
As opposed to the collision method, the AGF 2.0 does not generate any particles > 2 µm thanks to its cyclone.
Due to the fact that the AGF generates virtually no droplets > 2 µm, the consumption of materials is very low, thus ensuring a long dosing time.
With the use of DEHS the mean particle size is within the MPPS range for HEPA/ULPA filters
Description
The AGF 2.0 is an aerosol generator for the atomization of liquids and latex suspensions with a constant particle rate and defined particle spectrum.
Fig. 1: AGF 2.0
The AGF 2.0 system comprises an adjustable binary nozzle for adjustment of the desired mass flow and a cyclone with a cut-off of 2 µm. As a result, virtually no particles > 2 µm are generated.
AGF 2.0 functional principle
Fig. 2: Functional principle of the AGF series, including cyclone
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 = 2 µm, i.e. regardless of the liquid to be atomized, the max. particle size is daerodyn ≈ 2 µm.
Table 1: Overview of the AGF and UGF systems
Application
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
Aerosol generation for MPPS determination of HEPA/ULPA filters
Tracer particles
Inhalation experiments
Optical flow measurement procedures with positive pressure values of up to 10 bar (model version AGF 2.0 D)
LDV
Calibration of counting particle measurement methods
Nebulization of latex suspensions < 1 µm
Smoke detector test
To enquire about the AGF 2.0 AGF system and the options available contact us now.
