1、 Detailed explanation of DPF regeneration technology principle

The regeneration technology of DPF (Diesel Particulate Filter) is a key technology in diesel vehicle exhaust treatment. The principle is to remove the particulate matter accumulated in the DPF through high-temperature combustion or chemical cleaning, thereby restoring its filtration performance. This technology is of great significance for reducing particulate matter pollution in diesel vehicle exhaust emissions and improving vehicle environmental performance.

The regeneration technology of DPF can be divided into two methods: passive regeneration and active regeneration. Passive regeneration is mainly carried out through the natural reaction between soot and NO2, and the advantage of this method is that it does not require additional control and has high safety. However, its drawbacks are also evident, including a narrow temperature range required for the reaction and a relatively slow reaction rate. Active regeneration is achieved through the oxidation reaction between soot and O2, which has a high regeneration speed and thoroughness. However, at the same time, it also requires complex control strategies and generates high temperatures during the reaction process, which poses certain safety risks.

2、 Exploration of DPF Active Regeneration Mode

When exploring the regeneration technology of DPF, we have to pay attention to the active regeneration mode. This mode relies on the oxidation reaction between soot and O2, and its significant advantages lie in its efficient regeneration speed and thoroughness. However, it also faces some challenges, such as the need for complex control strategies and the possibility of high temperatures generated during the reaction process, which pose certain safety risks. Next, we will delve into the operating mechanism, advantages and disadvantages, and challenges of DPF active regeneration mode in practical applications.