Device and method for enhancing fuel spray characteristic and chemical activity

The invention discloses a device and a method for enhancing fuel oil spray characteristics and chemical activity. The device comprises a concave cavity stabilizer, a plurality of direct injection nozzles and a plurality of rounded rectangular sliding arc discharge exciters, the rounded-corner rectangular sliding arc discharge exciter is installed on the concave cavity stabilizer according to a set position, and by changing the voltage and frequency of a power source connected with the rounded-corner rectangular sliding arc discharge exciter, frequency and voltage parameters with the relatively minimum fuel particle size and the relatively highest gaseous component content can be obtained. Therefore, the optimal scheme for enhancing the fuel spray characteristic and chemical activity of the cavity stabilizer is obtained. According to the device and the method for enhancing the fuel oil spraying characteristic and the chemical activity of the cavity stabilizer, the fuel oil spraying characteristic and the chemi