Device and method for air plasma treatment of automobile exhaust

Abstract

The present invention involves a device for air -plasma to deal with automobile exhaust, including high -voltage DC power supply, two insulation boards that are relatively set, and at least one tail gas import is set on one of the insulation plates.At least one exhaust exit, the ground electrode and multiple conductive pipes are set between the two insulation plates. The ground electrode is connected to the ground terminal of the high voltage DC power supply.The high -voltage end of the DC power supply is connected, and multiple conductive pipes are distributed in a loop. Each conductive pipe is provided with multiple steel needles along the length direction of the conductive pipe.The present invention also involves a method of air -plasma to deal with car exhaust.The present invention can obtain a larger processing space; it can quickly install this device on the car exhaust pipe to facilitate the treatment of car exhaust at any time; it can achieve vehicleization; efficient decomposition and low processing energy consumption.

Description

technical field [0001] The invention relates to a device and method for treating automobile tail gas with air plasma. Background technique [0002] In recent years, low-temperature plasma physics and applications have become an important science and engineering with global influence, which has a huge impact on the development of high-tech economy and the transformation of traditional industries. For example, with the rapid development of electronic communications, about one-third of microelectronic devices are processed by plasma technology; 90% of plastic packaging materials must be treated and modified by low-temperature plasma. Scientists predict that there will be breakthroughs in low-temperature plasma science and technology in the 21st century. It is estimated that the potential market of low-temperature plasma technology in the fields of semiconductor industry, polymer film, material corrosion protection, plasma electronics, plasma synthesis, plasma metallurgy, plasm...

AI Technical Summary

Problems solved by technology

Among them, the three-way catalytic converter is an internationally recognized mainstream technology that can greatly reduce the pollutants emitted by gasoline vehicles. However, vehicles using three-way catalytic converters must use unleaded gasoline and require that the air-fuel ratio of the engine can be accurately controlled. The application of this type of converter is limited

For vehicle diesel engines, since the particulate matter in the exhaust needs to be oxidized, and the treatment of nitrogen oxides needs to be reduced in order to meet the high standard emission requirements, the NH3-SCR system is mainly used to reduce nitrogen oxides at this stage. substances, but the use of this system often has the problem of catalyst sulfur poisoning

Therefore, with the increasingly stringent emission standards of automobile exhaust, catalytic conversion technology and NH3-SCR technology can no longer meet the development needs of future high-tech automobiles

Images