Technology of cleaning / regeneration of DPF / FAP filters and catalysts.
Our hot water high pressure devices use the power of the hydrodynamics of water flow of turbulent character (Fig.1) and the power of the impulse of the compressed air from the compressor. The fluid (working fluid) movement is forced by external pressure which has to overcome flow resistances in the filter channels. During the turbulent flow the fluid streams mix forming whirpools which easily permeate and remove particulates in the microporous filter channel partitions.
Our devices perfectly cooperate with DPF Active Matic fluid reducing water surface tension, owing to which the cleaning agent particles combine more easily with dirt particles, and they tear them off more effectively from the surface being cleaned.
During cleaning, the DPF filter flow geometry provides resistances with the simultaneous formation of the flow with high speed and high shear stresses being the main mechanism of removing compressed deposits in the filter channels.
In addition, the flow resistance is caused by the proper viscosity of the cleaning agent (DPF Active Matic), which during the fluid particles movement brings about the occurrence of a phenomenon, the results of which resemble friction.
The method enables very careful removal of all types of particulates (soot, ashes, oils) both from exhaust and inlet channels of the filter.
The technology includes:
– Specialist HYDRO FLUSH cleaning machine
– Cleaning agent: Detergent
– Measuring tools: back pressure tester,
inspection (endoscopic) camera
– Professional device for hot air drying
Cleaning process
Conducting visual inspection of the filter ceramic insert with the inspection camera.
The filter insert which qualifies to be cleaned cannot be cracked, melted, stuck.
Fastening the filter in the machine.
Back pressure test, showing the level of blocking the filter before cleaning.
Application of the cleaning agent to the internal part of the filter housing – DPF Active Matic.
Starting the cleaning process. Water temperature 60 ℃.
Analysis of dirty water coming from the filter (colour, the amount of oil).
Finishing the cleaning ( 30 min ).
Drying ( 30 min ).
Back pressure test, showing the level of blocking the filter after cleaning.
In case of the lack of full capacity, return to point 5.
Taking photos of the filter insert with an inspection camera.
Preparing a report. A report template.
