A dpf laser cleaning regeneration device and method

Abstract

The present invention relates to a DPF laser cleaning and regenerating device and method. The device includes a cleaning platform and a DPF device installed in the cleaning platform. The top of the DPF device is provided with a fiber laser and a parallel laser generating device. The parallel laser generating device is located on the fiber laser. Below, the fiber laser and the parallel laser generating device are slidingly connected to the X-axis displacement guide rail through the X-axis displacement component, and the two ends of the X-axis displacement guide rail are slidingly connected to the Y-axis displacement guide rail through the Y-axis displacement component, and the Y-axis displacement guide rail is fixedly connected on the cleaning platform. The DPF laser cleaning method and device adopted in this application emits a high-energy laser beam through the high-energy laser head to irradiate the surface and channels of the DPF, and detaches or vaporizes the carbon deposits from the attached surface to achieve the purpose of cleaning the DPF. The above process can be repeated as needed. times, and finally complete the dredging of the clogged particles in the DPF, effectively prolonging the service life of the DPF without causing environmental pollution.

Description

technical field [0001] The invention relates to the technical field of DPF regeneration, in particular to a DPF laser cleaning and regeneration device and method. Background technique [0002] DPF (Diesel Particulate Filter) is a diesel particulate filter, which refers to a device installed in the exhaust system of a diesel vehicle to reduce particulate matter (PM) in the exhaust by filtering. DPF can effectively purify 70%-90% of the particles in the exhaust gas, and is one of the most effective and direct methods to purify diesel engine particulate matter. [0003] All diesel vehicles of the National VI standard that will be implemented in 2020 will be required to install DPF. Diesel particulate filter (DPF) is currently recognized as an effective means to reduce diesel particulate emissions. The application method of this technology is to separate PM from the air flow by means of collision and adsorption, inertial interception, diffusion interception or Baoli sedimentat...

AI Technical Summary

Problems solved by technology

[0009] There are various problems in the regeneration of the above DPF: it needs to consume fuel or electricity, so the DPF diesel engine used is less economical; the method of adding additives to the fuel is currently immature, and the user needs to add additives to the diesel. There are also difficulties; DPF is very sensitive to sulfur in fuel and requires 15ppm diesel

This is because the sulfur in the fuel will form sulfate at high temperature, which itself is a kind of particle, causing the emission of particles to increase; secondly, the sulfate adheres to the surface of the carrier coating, destroys the coating, produces toxic and harmful substances, and hinders gaseous catalysis Reaction disables regeneration, causing excessive particulate matter emissions

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