Integrated motor-vehicle tail-gas purifying device of photocatalyzing in combination with plasma

Abstract

The invention discloses a one-piece vehicle exhaust gas purification device with photocatalysis synergism plasma function, includes gas enter mixing chamber and gas export mixing chamber, the two mixing chamber end plate relative and mutual parallel; the numbers of ceramic discharging tubes parallel installed between the end plate of the two mixing chamber with connect the gas enter mixing chamber and gas export mixing chamber; ceramic discharging tube is composed of ceramic outer tube and the ceramic inner tube, the inner tube suit in the outer tube with the same axis and remains gap between the two tube; the surface of ceramic tube cavity loaded TiO2; the outer and inner tube composed electrode position. The invention of simple structure, photocatalysis long time, Exhaust good effect, no restriction on the ignition temperature, under low-temperature conditions remain purification effect. This invention using parallel coaxial casing discharge structure, the gas through reaction with small resistance, and so the engine back pressure has little effect, then reduces air-fuel ratio, improved combustion efficiency, fuel savings at the greatly range.

Description

technical field [0001] The invention relates to an external purification device for motor vehicle exhaust gas, in particular to an integrated motor vehicle tail gas purification device with photocatalysis and plasma action. Background technique [0002] Motor vehicle exhaust contains a large number of harmful substances, mainly including: carbon monoxide (CO), hydrocarbons (HC) and nitrogen oxides (NOx). With the continuous high-speed development of the national economy, the number of automobiles in my country has exceeded 20 million at present, and is growing at a rate of 12% every year. Motor vehicle exhaust pollution has become one of the main sources of air pollution in China, seriously affecting the economy. sustainable development. With the increasing environmental protection around the world, the control of air quality is becoming more and more strict, and the pollutant emission standards are also constantly improving. At present, my country's motor vehicle exhaust em...

AI Technical Summary

Problems solved by technology

[0005] Chinese Utility Model Patent ZL200320120485.5 (Plasma-Coupled Photocatalytic Unit Component and Gas Purifier Composed of It, Notification No. CN2660374) discloses a gas purifier, which preliminarily solves the above problems. However, the device is used to treat motor vehicle exhaust , the time in the gas photocatalytic reaction zone is short, and the purification effect is relatively poor. Moreover, the gas has to go through a zigzag turn, which increases the resistance of the airflow and increases the exhaust burden of the engine.

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