Hydrodynamic characteristics of water-jet pump for removing oils

摘要

The hydrodynamic characteristics of a bend-type of water-jet pump for removing oils and solid materials with water are discussed theoretically and experiemtnally. This type of water-jet pump is composed of a bend and a water-jet nozzle. The water-jet nozzle is connected directly to the bend at the outside of bend. The transportation characteristics are derived theoretically using the countinuity, momentum and energy equations. The experiments for 45 deg bend-type of water-jet pump are carried out. The solid spheres with the specific gravity about 1.00 were used. The theoretically-predicted characteristics for removing solid mateirals agree well with the experimental results. The experimetnal resutls for transporting various heavy oils are discussed comparing with the theoretical results. The flows for transporting various heavy oils are visualized.