| 摘要 |
FIELD: spraying equipment, particularly for gas drying and transportation after preliminary cleaning. ^ SUBSTANCE: nozzle assembly consists of two nozzles air-tightly connected one to another. At least one nozzle is formed as supersonic one. The critical nozzle sections are not less than that of the first nozzle in gas (aerosol) flow direction. At least one convergent subsonic nozzle is installed downstream the supersonic one. At least one convergent subsonic nozzle is made as supersonic multiple-shock external-compression diffuser truncated downstream the critical section thereof. Surface forming oblique shocks faces gas (aerosol) flow. ^ EFFECT: extended range of nozzle application, increased efficiency of gas drying due to accumulation of frozen liquid fraction particles just downstream from critical sections of subsonic nozzles under the action of oblique shocks along with constant freezing due to vacuum acceleration, possibility of nozzle assembly usage as duster and gas dryer due to improved vessel air-tightness, possibility to compensate oblique shock losses due to additional gas acceleration, increased operational stability, increased ability of particle separation from gas flow due to truncated supersonic nozzle usage. ^ 2 cl, 2 dwg |
