Carbon dioxide catching device of internal combustion engine

Abstract

The invention discloses a carbon dioxide catching device of an internal combustion engine, which can thoroughly resolve the problem that the internal combustion engine generates CO2 and NOx pollutants. The device not only meets the requirement that liquid oxygen is vaporized and enters the internal combustion engine to realize oxygen enrichment combustion, after releasing heat, CO2 discharged by the internal combustion engine is condensed into dry ice and is stored fixedly, and zero emission of the internal combustion engine is realized. The carbon dioxide catching device comprises an inlet, a liquid oxygen guiding block, a dry ice descending channel, a dry ice collector, an outlet and a liquid oxygen inlet. After the liquid oxygen is vaporized, the liquid oxygen and the CO2 jointly enter the internal combustion engine to support combustion, oxygen enrichment combustion is carried out in the internal combustion engine, NOx is eliminated, and further, emission of pollutants such as CH, CO and the like is eliminated. After being used with the device, the internal combustion engine can work in narrow spaces needing zero emission, such as military adit construction vehicles, tunnel excavators, drilling generators, submarine generators, military missile launching vehicles and the like. The collected dry ice can be recycled, is used for refrigeration, and can be used as dry ice detergent, plant food and the like.

Description

technical field [0001] The invention relates to a carbon dioxide capture device for an internal combustion engine, in particular to an internal combustion engine tail gas fixed CO 2 system. Background technique [0002] In order to honor the promise of the "Kyoto Protocol", reducing carbon emissions is an urgent goal for my country. Carbon emissions from internal combustion engines are also an urgent problem to be solved. The energy-saving combustion method widely used in internal combustion engines is oxygen-enriched combustion. Oxygen-enriched combustion can increase the chemical reaction rate, obtain higher combustion temperature and combustion pressure, so that the internal combustion engine can output more useful work. Oxygen-enriched combustion can completely eliminate the emission of CH, CO and other pollutants, but the combustion of hydrocarbon fuels will inevitably produce CO 2 and NO x The problem of pollutants, according to the invention, the internal combusti...

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Problems solved by technology

Utility model patent ZL201020576059.2 designed an overall solution for internal combustion engine liquid oxygen fixation carbon zero emission, but did not design fixed CO 2 installation

Invention patent application CN 101639329A designed a kind of liquid oxygen and tail gas CO 2 After the partition heat exchange, the vaporized oxygen enters the combustion-supporting device of the internal combustion engine, but because it is designed for partition heat exchange, the vaporized oxygen cannot be combined with the remaining incompletely sublimated CO 2 mix

The utility model patent CN 201851229U has designed a kind of liquid oxygen that is heated and vaporized into oxygen to enter the internal combustion engine and exhaust CO 2 The device for sublimation into dry ice for fixed recovery has a complex structure, takes up a lot of space, and the device is not compact. At the same time, the exhaust gas CO 2 The small opening of the fixed recovery device is easy to cause dry ice blockage

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