Reciprocated flowing type marine diesel engine continuous catalyzing regenerating diesel oil particle filter

Abstract

The invention belongs to the technical field of aftertreatment of marine diesel engine particulate matter emission control, and particularly relates to a reciprocated flowing type marine diesel enginecontinuous catalyzing regenerating diesel oil particle filter. According to the filter, an adverse current oxidation device is used for achieving the principle that ultra-thin organic substance is subject to reciprocated flowing within a self-maintaining period to be subject to oxidation treatment, and the reciprocated flowing type marine diesel engine novel continuous catalyzing regenerating DPFsuitable for a marine diesel engine burning heavy oil. The novel DPF technology is applied into the marine diesel engines burning heavy oil, a marine diesel engine particulate matter control device has the advantages of small flowing resistance, the good particulate matter removing effect, the compact structure, easiness in regeneration, high catalyst sulfur poisoning resistance and the like, integrated matching of the marine diesel engine particulate matter control device and a diesel engine host, an SCR denitration device and a wet-type washing desulfurizer is easily achieved, and the integrated treatment effect of desulfuration, denitration and particulate matter removal of waste gas of the marine diesel engine is achieved.

Description

technical field [0001] The invention belongs to the post-processing technical field of marine diesel engine particle emission control, and in particular relates to a reciprocating flow type marine diesel engine continuous catalytic regeneration diesel particle filter. Background technique [0002] Two-stroke low-speed diesel engines are the main power plant of large and medium-sized ocean-going ships. In order to reduce costs, ocean-going ships use heavy fuel oil (HFO) and intermediate fuel oil (IFO) with high sulfur content. Compared with road diesel engines, marine diesel engines emit higher concentrations of particulate matter, more complex components, and more serious pollution. PM emitted from marine diesel engines exists in three modes: nuclear state, accumulation state and coarse particle state, and the particle size covers the entire range from a few nanometers to 20 microns. In terms of chemical components, it not only contains black carbon, sulfate and nitrate, bu...

AI Technical Summary

Problems solved by technology

The main suppliers of foreign high-power marine diesel engines and auxiliary equipment have not made breakthroughs in research on key technical issues such as high flow resistance of marine diesel engine DPF, low temperature ignition, catalyst sulfur poisoning, and ash deposition blocking failure.

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