Method and device for purifying internal combustion engine exhaust particles

Abstract

The invention discloses a method for purifying internal combustion engine exhaust particles. The method comprises the following steps: S1, enabling internal combustion engine exhaust to unidirectionally flow through a particle collection channel, wherein the particle collection channel is a hollow cavity; S2, pressurizing water in a water tank to form a pressure water column and injecting the water column into the particle collection channel, wherein an injection of the pressure water column is orthogonal to a flow direction of the internal combustion engine exhaust; S3, collecting wastewaterobtained after contacting the pressure water column and the internal combustion engine exhaust, determining light transmittance of the wastewater and feeding the wastewater into the water tank; renewing the water in the water tank when the light transmittance is less than a set value, and returning to the S2, otherwise directly returning to the S2. The invention further discloses a device for purifying the internal combustion engine exhaust particles. According to the method disclosed by the invention, the internal combustion engine exhaust can be continuously purified, and the exhaust particles are adsorbed. Moreover, the purification device does not need to be subjected to high-cost regeneration treatment, and the device is low in using cost, low in energy consumption, clean and environmental-friendly.

Description

technical field [0001] The invention relates to a method and device for purifying exhaust gas, in particular to a method and device for purifying particulate matter in the exhaust gas of an internal combustion engine. Background technique [0002] Particulate matter in the exhaust of internal combustion engines is an important pollutant affecting the urban atmospheric environment. At present, major automobile manufacturers at home and abroad are using particulate traps to filter the particulate matter in the exhaust of internal combustion engines. The particulate traps are generally honeycomb structures. When the particulate matter on the particulate filter accumulates to a certain amount, it is necessary to filter The trap is regenerated. The regeneration process usually uses the precious metal platinum (Pb) as a catalyst to remove the particulate matter on the trap through fuel injection combustion or resistance wire heating, so as to realize the regeneration of the parti...

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Problems solved by technology

[0003] In view of the above-mentioned defects in the prior art, the task of the present invention is to provide a method for purifying the exhaust particulate matter of an internal combustion engine, which solves the problems in the prior art that the particulate trap needs to be regenerated, which consumes energy and has high cost.

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