A Diesel Particulate Filter found on light, medium and heavy vehicles located within the exhaust system is specifically designed to reduce the amount of particulate matter such as Soot/Ash which are harmful to the environment. The objective of this filter is to trap the particulate matter and create a cleaner and more eco friendly exhaust gas being released in the atmosphere.
The DPF requires to be cleaned over a period as a result of a partially/fully blocked DPF giving rise to problems like loss of power, uneconomical fuel consumption, delayed response to throttle and in extreme cases leading to engine stalling/failing to start.
The technique developed by FF solutions were found to be very effective and reliable as it removes the Ash and Soot, it uses compressed fluid method that is compliant and compatible with OEM DPF cleaning specifications and guidelines. Several comparative technologies available were studied and put into practice, though most cleaning methods pose some risk of damage to the DPF. It can be mitigated through continuous product development and process control steps to minimize these unforeseen risks.
The process involved in the technique implemented by FF solutions include several stages to effective cleaning. The stages are as described below;
Install the partially/fully contaminated DPF on the washing valve (patented) for effective DPF cleaning.
Once connected properly, ensure protective doors are latched and the desired program is selected to initiate the cleaning sequence based on the DPF to be cleaned. FH series has designed a choice of cleaning sequence cycles to suit all types of DPF’s whether light, medium or heavy applications.
A back-pressure test is carried out to check the blockage level prior to initiating the cleaning process.
The process involves effective cleaning by low pressure 2.5 -2.8 bar water that is heated at a temperature of 50°Cand mixed with hydrocarbon fluid which flows through a dedicated washing pipe/pump at a specific flow rate determined to effectively clean it without damaging the substrate or the DPF unit.
The process also involves blasts of air that is assisted at a steady pressure of 3-3.5 bar to ensure that the Soot and Ash are very effectively removed from the DPF filter.
FH series uses water recirculation method to recycle contaminated water and re-use it for effective cleaning purpose by means of a dedicated water recirculation and decontamination system within the unit.
On completion of the cleaning cycle, the FH series provides choice of drying cycles for all kinds of DPF’s. The DPF’s are dried using uniquely designed heating elements, blowers providing a higher rate of volumetric flow of air at 300 mbar for faster drying of the DPF’s.
On completion of the process another back pressure test is carried out to confirm the volumetric flow of air post the advanced cleaning process.
The complete cleaning cycle from start to stop ranges between 60 – 90 mins depending upon the size, contamination level and related DPF’s from various applications that undergo the cleaning and drying cycle.
Over the recent years of experience, expertise in the field of diesel systems with various automotive conglomerates like Daimler, Cummins PSA etc, FH series technique assures to deliver a higher rate of cleaning efficiency between 90 – 98.5% of the DPF units subjected to the cleaning process.
Some of the prominent advantages of the FH Series machines are;
Very effective removal of Soot and Ash by using advanced fast DPF cleaning process without cutting or welding.
Apart from DPF’s for various applications, other pollutant control systems like DOC and SCR can also be cleaned using this technique.
Multiple stages/functions are incorporated and automated in a single unit with minimum manual intervention.
A Single compact unit which occupies less floor space.
Engineered for performance, robust build, protects and safety ensured for operators.
Achieves highest cleaning efficiency up to 98.5%.
Unique capability of coupling the process of cleaning and drying thus reducing the turnaround time in comparison to similar other technologies prevailing in the market.
Versatile design and scope for customization of the equipment to meet customer specification and requirements.
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