Through advanced filtration technology and high - quality materials, we ensure that our DPFs meet the most stringent environmental standards helping to improve air quality and protect the environment.
Through advanced filtration technology and high - quality materials, we ensure that our DPFs meet the most stringent environmental standards helping to improve air quality and protect the environment.
Step by step solution
（1） Regeneration optimization plan
1. Accurately control the timing of regeneration
By installing the OBD-III intelligent monitoring module, the regeneration temperature window can be expanded from the traditional 300-450 ℃ to 250-500 ℃, resulting in a 40% increase in regeneration efficiency. A logistics fleet tested that this method extended the cleaning cycle from 8000 kilometers to 12000 kilometers.
2. Application of fuel additives
The use of specialized additives containing vanadium based catalysts can increase the decomposition rate of polycyclic aromatic hydrocarbons to 92%, but it should be noted that:
-The mixing ratio of additives and fuel should be strictly controlled within 0.5% -1.5%
-First use requires a 200 kilometer break in test
（2） Scientific cleaning plan
1. High pressure water jet cleaning method
Using a 150MPa ultra-high pressure water gun and a 45 ° elevation angle impact, it can remove over 90% of the carbon layer. However, it should be noted that:
-After cleaning, a 10 minute air-fuel ratio calibration is required
2. Chemical solvent cleaning
The new biological enzyme cleaning agent can decompose the carbon layer at 60 ℃ environment, avoiding damage to the coating caused by high-temperature regeneration. However, it should be noted that:
-Do not mix with strong oxidizing solvents
-After use, exhaust particulate matter detection is required
（3） System upgrade plan
1. Collaborative upgrade of DPF+SCR
Installing a urea injection system (SCR) can increase the NOx conversion rate to over 85% while reducing the growth rate of DPF carbon load. Of the 5000 vehicles upgraded by a certain heavy-duty truck manufacturer in 2023, 87% achieved 3-year no cleaning.
2. Replace with a new generation ceramic carrier
Using nanoporous ceramic carriers, the surface area is increased by 5 times compared to traditional carriers, and the adsorption efficiency is increased by 3 times. However, it should be noted that:
-Only applicable to vehicles with National VI B and above emission standards
-After replacement, it is necessary to recalibrate the emission parameters
