Device for recycling waste heat of engine exhaust pipe so as to improve comprehensive oil consumption utilization rate of engine

Abstract

The invention provides a device for recycling waste heat of an engine exhaust pipe so as to improve comprehensive oil consumption utilization rate of an engine. The device comprises an ethyl alcohol supply device A, an ethyl alcohol catalytic device B and an ethyl alcohol supply device C; the ethyl alcohol supply device A comprises an ethyl alcohol box, a connecting pipe, a liquid pump and an overflow valve; the ethyl alcohol catalytic device B comprises an evaporator, an energy storage device, a connecting pipe, a gas pump, a catalyst and an exhaust manifold; the ethyl alcohol supply device C comprises a connecting pipe, a water draining valve, a separator, an air inlet manifold and the engine; an evaporation chamber of the evaporator, the gas pump, a catalytic cavity of the catalyst, the separator, the air inlet manifold and an air inlet of the engine are sequentially connected in series. The energy storage device is in parallel connection to the position between the evaporator and the gas pump, an air outlet of the engine, the exhaust manifold, a waste gas pipe of the catalyst and a three-element catalytic chamber of the evaporator are sequentially connected in series. Heat energy of waste gas exhausted by the engine can be recycled and reused, meanwhile, dual fuel is provided for the engine, energy is saved and meanwhile emissions of pollutants can be reduced.

Description

technical field [0001] The invention belongs to the technical field of automobile energy saving and emission reduction, in particular to a device for reabsorbing, transforming and reusing engine exhaust waste heat to recover engine exhaust pipe waste heat and improve engine comprehensive fuel consumption utilization rate. Background technique [0002] Extensive use of ethanol gasoline is one of the methods of energy conservation and emission reduction in my country and the world. Ethanol gasoline is a new type of alternative energy that is formed by mixing fuel ethanol processed from grain and various plant fibers and ordinary gasoline in a certain proportion. According to my country's national standards, ethanol gasoline is blended with 90% regular gasoline and 10% fuel ethanol. The use of ethanol gasoline can save oil resources, reduce air pollution from vehicle exhaust, and promote agricultural production. However, ethanol gasoline has shortcomings that cannot be overcom...

AI Technical Summary

Problems solved by technology

This is because the instability of fuel ethanol increases the accumulation on the fuel intake system of the engine, which makes the atomization of the fuel injector poor, resulting in a decrease in the combustion efficiency of ethanol gasoline and an increase in fuel consumption.

[0003] At present, the method of recycling the waste heat of automobile exhaust is mainly power generation technology. The most common way is thermoelectric power generation. Since the heat utilization rate of the thermoelectric power generation sheet is less than 5%, the efficiency of converting heat energy into electrical energy is extremely low, and what is worse is the temperature difference. The voltage generated by power generation varies greatly with temperature, and storing electric energy in batteries requires high technical requirements and low efficiency

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