The truck ran 100,000 kilometers, the power is obviously not as good as before, but also particularly fuel-intensive, frequent speed limit torsion reporting obstacles, but I don't know that it is the first problem, after the overhaul found that the urea nozzle is blocked, after dismantling the crystals in the mixing cavity piled up into a mountain!
Crystallization and scaling are easy to occur in the exhaust pipe wall, mixing cavity and other locations, and as long as there is an SCR system, the crystallization and scaling of ordinary urea is inevitable. To decrystallize, we must first understand why urea crystals are produced.
Root cause: Ecological disorder of the SCR system
When the ecological disorder of the SCR system, the urea sprayed and oversprayed will crystallize and scale, and the accumulation of crystalline scale will hinder the normal decomposition of urea on the one hand, and on the other hand, it will lead to the failure of sensor detection, aggravate the phenomenon of overspraying, and eventually lead to the blockage of the entire exhaust pipe, which will seriously interfere with the normal attendance of the vehicle.
SMC self-melting crystal cleaning technology can realize the dual mechanism of microreaction melt crystal cleaning and peeling cleaning in a variety of temperature zones and working areas of the SCR system, and can remove crystals in a microscopic state.
Solving the crystallization problem at the source is not to produce crystallization, not to delay crystallization, but to melt and wash the crystallization to keep the system clean.
At present, the better conventional automotive urea products on the market can only delay urea crystallization, which will cause ecological disorder in the SCR system for a long time, and it is difficult to remove a large number of internal crystals without disassembly and maintenance.
Functional automotive urea can remove the crystals that existed before during use, and long-term use can maintain the continuous cleanliness of the SCR system ecology.
Removal of truck nozzles, exhaust pipe crystallization and fouling
1.Keep the SCR system clean and virtuous.
2.Reduce truck breakdowns and improve uptime.
3.Maintain fuel consumption and urea consumption at reasonable equivalents.