过热液体储罐泄漏闪蒸射流行为特性试验研究

Experiments were conducted to investigate the two-phase release of superheated liquid with high temperature and high pressure after accidental releases based on the two-phase release experiment system. The characteristics of flashing jets during the release under different storage and release conditions such as storage pressure, superheat, and nozzle diameter were studied by high-speed camera and PDA. Results show that the spray angle of flashing jet gradually increases first, then remains stable, and suddenly expands and decreases rapidly when superheated liquid is released completely. Droplets three-dimensional velocities increases with the increase of storage pressure, superheat and nozzle diameter, while droplets diameter decreases with the increase of superheat and nozzle diameter but increases with the increase of storage pressure.