Piezoelectric two-phase flow ultrasonic atomization nozzle

Abstract

Disclosed is a piezoelectric two-phase flow ultrasonic atomization nozzle, comprising a piezoelectric vibrator (6), an amplitude transformer (8), a second end cap (12) and a first end cap (14). The piezoelectric vibrator (6) and the amplitude transformer (8) are connected via a connecting bolt (4). An air inlet connector (2) is installed at a tail portion of the connecting bolt (4). The second end cap (12) is fixed to the front end of the amplitude transformer (8). A Laval type valve core (9) is fixed in a stepped hole of the amplitude transformer (8) and a groove of the second end cap (12). A liquid inlet hole (10) is arranged in a wall face of the stepped hole of the amplitude transformer (8). A plurality of flow guide holes (11) is formed at the positions, close to an outlet, of the Laval type valve core (9) in the radial direction. The second end cap (12) is connected to the first end cap (14) in a threaded manner. A radial positioning ring (20) is arranged at a snapping groove of the back end of the first end cap (14). A step type taper valve (21) is installed on the radial positioning ring (20). The step type taper valve (21) and a vibration baffle (19) are connected via an adjusting bolt (16). A resonance chamber (17) is formed between the vibration baffle (19) and the top end of the first end cap (14). A plurality of hoses (15) is arranged in the resonance chamber (17). According to the piezoelectric two-phase flow ultrasonic atomization nozzle, a large number of superfine fog droplets can be generated in a low-energy-consumption operating condition, and the shortcoming that large atomization amount, small grain size, low energy consumption and directed spraying cannot be considered at the same time in the traditional technology is overcome.

Dependencies are inferred from the claim text.