Diesel engine DPF cleaning and regenerating device

Abstract

The invention discloses a diesel engine DPF cleaning and regenerating device. The diesel engine DPF cleaning and regenerating device comprises a cleaning tank, a cleaning tray which is arranged at thebottom of the cleaning tank, a cleaning liquid pipeline, a compressed air pipeline, a cleaning rod, a rotating transmission which is used for driving the cleaning tray to rotate, an air cylinder which is used for driving the cleaning rod to move in a reciprocating mode and a high-pressure nozzle, and the high-pressure nozzle is connected with the cleaning rod, a liquid outlet of the cleaning liquid pipeline and an air outlet of the compressed air pipeline. According to the diesel engine DPF cleaning and regenerating device, three-stage process of the ultrasonic cleaning, the reverse blowing type high-pressure washing and the hot compressed air blowing and drying is carried out, and a blocked DPF sample is cleaned and regenerated, so that the particle supplementing and collecting performance of the diesel engine DPF is rapidly recovered, the exhaust back pressure of the engine is improved; and therefore the maintenance or replacement cost of the blocked DPF is reduced, the fuel consumption of the diesel engine is reduced, the engine power of the diesel engine is recovered and the tail gas purification capability of the DPF is recovered.

Description

technical field [0001] The invention relates to a cleaning device, in particular to a diesel engine DPF cleaning and regenerating device. Background technique [0002] Diesel vehicles have the advantages of low fuel consumption, high torque output, and wide power coverage, and are widely used in transportation and construction machinery. With the tightening of automobile emission regulations, diesel vehicles can only meet the strict emission regulations in the future by using after-treatment devices. The emissions of HC, CO, and NOx in the exhaust of diesel vehicles are less than those of gasoline vehicles, but the emission of soot particles in the exhaust is higher than that of gasoline vehicles, even dozens of times higher. The solid pollutants emitted by diesel engines are mainly particulate matter, which is composed of dry soot (SOOT), soluble organic fraction (SOF), a small amount of sulfuric acid and sulfate, etc. With the continuous increase of global diesel vehicle...

AI Technical Summary

Problems solved by technology

Oxidizing and burning the particles trapped in the DPF is a common DPF regeneration method, but this method is easy to cause thermal damage to the filter body

And most of the particles produced by lubricating oil additive packages and engine wear metals cannot be removed by oxidative combustion. Over time, these particles accumulate, block the DPF pores, reduce the particle capture capacity of the DPF, and at the same time, cause exhaust The back pressure of the trachea increases, the fuel consumption increases, and the power decreases, which may even cause the DPF to be burned and scrapped, resulting in serious environmental pollution and economic loss for replacing the DPF

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